Multifunctional beam rotating machine welding clamp

Abstract

The multifunctional beam rotating machine welding clamp comprises a shell and a first rotating plate above the shell, a supporting frame is fixedly connected to the center of the top of the first rotating plate, a plurality of locking mechanisms are symmetrically arranged on the two sides of the supporting frame, and a rotating mechanism is installed in an inner cavity of the shell. Positioning pieces are installed on the inner sides of the top ends of the supporting frames. According to the clamping device, the center rod is driven by the air cylinder, the fixing rod drives the extrusion block to precisely position the side edge of the cross beam, meanwhile, the pressing rod applies pressure to the upper portion of the cross beam through the synergistic effect of the multiple assemblies, the transverse stability and the vertical stability of the cross beam in the welding process are guaranteed, and the clamping effect is further improved through synchronous work of the multiple locking mechanisms; and the design of the whole system ensures the high precision of positioning and the stability of the cross beam in the welding process, so that the welding quality and the production efficiency are improved.

Description

Technical Field

[0001] The invention relates to the technical field of beam welding, in particular to a multifunctional beam rotating machine welding clamp. Background Art

[0002] Mechanical welding is a process that uses mechanized equipment to perform welding. This type of welding is widely used in industrial production, especially in the automotive, shipbuilding, aerospace and other fields that require high-strength connections.

[0003] For example, the "Urban Rail Universal Beam Manipulator Welding Fixture" with publication number CN106938378B includes a base, a control switch is installed in the middle of the front side of the base, the input end of the control switch is connected to the output end of the external power supply, and four mounting brackets are provided on the upper surface of the base. The two mounting brackets on the front side and the two mounting brackets on the rear side are fixedly connected by connecting arms, and a fixing bracket is fixed on the upper end of the mounting bracket.

[0004] However, in the prior art, when welding automobile cross beams, inaccurate positioning will cause the welding points to deviate from the design requirements, the weld position will not meet the predetermined standards, and the welded parts cannot be properly spliced, thereby affecting the overall strength of the structure. In addition, unstable positioning also causes welding defects such as porosity, lack of fusion or weld beading, etc. These defects will weaken the quality of the weld and affect the service life of the product. During the welding process, if the position of the workpiece is unstable, the heating will be uneven, which can easily cause thermal deformation of the material, resulting in deformation or distortion of the workpiece after welding, affecting the accuracy of the overall structure. Summary of the Invention

[0005] The purpose of the present invention is to provide a multifunctional beam rotating machine welding clamp to solve the problem raised in the above background technology that if the positioning is inaccurate, the welding point will deviate from the design requirements, the weld position will not meet the predetermined standards, and the welded parts cannot be properly spliced, thereby affecting the overall strength of the structure.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a multifunctional beam rotating machine welding clamp, comprising a housing and a first rotating plate above the housing, a support frame fixedly connected to the center of the top of the first rotating plate, a plurality of locking mechanisms symmetrically provided on both sides of the support frame, a rotating mechanism installed in the inner cavity of the housing, and a positioning member installed on the inner side of the top of the support frame; The locking mechanism comprises a center rod and a pressing rod, the inner side of the center rod being slidably connected to the fixing rod, the bottom end of the fixing rod being fixedly connected to the third rotating block, the top end of the fixing rod being fixedly connected to the second rotating block, the top end of the center rod being rotatably connected to the first rotating frame, the outer side of the first rotating frame being rotatably connected to the second rotating frame, the center of one side of the second rotating frame being fixedly connected to the connecting rod, the outer surface of the bottom end of the fixing rod being slidably connected to the lifting sleeve, one end of the lifting sleeve being fixedly connected to the positioning rod, one end of the pressing rod being provided with a wire mesh hole, and one end of the pressing rod being fixedly connected to the first connecting frame, the top end of the second rotating block being located in the wire mesh hole, and the second rotating block being rotatably connected to the pressing rod, and one end of the connecting rod being fixedly connected to the first rotating block.

[0007] Preferably, a cylinder is fixedly connected to the center of one side of the first rotating frame, the bottom end of the cylinder is rotatably connected to the second mounting frame, and the bottom end of the second mounting frame is fixedly connected to the top end of the first rotating plate.

[0008] Preferably, the bottom end of the third rotating block is rotatably connected to the first mounting bracket, the bottom of the first mounting bracket is fixedly connected to the top of the first rotating plate, one end of the pressing rod is fixedly connected to the pressing block, and the top end of the positioning rod is fixedly connected to the extrusion block.

[0009] Preferably, one end of the first rotating block is located inside the first connecting frame, and the first rotating block is rotatably connected to the first connecting frame. A second spring is provided between the second rotating block and the center rod, and the second spring is sleeved on the outer surface of the fixed rod.

[0010] Preferably, the rotating mechanism includes a second fixed plate, the second fixed plate is fixedly connected to the inner side of the shell, the top of the second fixed plate is rotatably connected to a swing frame, the top of the swing frame is fixedly connected to the second rotating plate, and the top of the second rotating plate is fixedly connected to the bottom of the first rotating plate.

[0011] Preferably, a driving plate is provided on one side of the swing frame, the bottom of the driving plate is rotatably connected to the second fixed plate, the bottom end of the driving plate is fixedly connected to a driving rod, and the top of the driving rod is fixedly connected to a pushing block.

[0012] Preferably, four reversing grooves are provided on the outer surface of the swing frame, and an arc groove is provided on the outer surface of the swing frame, the reversing groove is engaged with the push block, a driving motor is installed at the bottom of the second fixed plate, and the output end of the driving motor is fixedly connected to the driving plate.

[0013] Preferably, the positioning member includes a first fixed plate, the top of the first fixed plate is fixedly connected to the support frame, and the inner side of the first fixed plate is slidably connected to a limiting plate, one end of the limiting plate is fixedly connected to a movable rod, and one end of the movable rod passes through the first fixed plate.

[0014] Preferably, a first spring is provided on one side of the limiting plate, the first spring is sleeved on the outer surface of the movable rod, and one end of the movable rod is fixedly connected to a positioning frame.

[0015] Preferably, a sliding groove is provided at the top of the shell, and a limiting rod is slidably connected to the inside of the sliding groove. The top of the limiting rod is fixedly connected to the bottom of the first rotating plate. Sliding blocks are fixedly connected on both sides of the first rotating plate, and the sliding blocks are slidably connected to the shell.

[0016] Compared with the prior art, the present invention has the following beneficial effects: 1. In the present invention, the central rod is driven by a cylinder, so that the fixed rod drives the extrusion block to accurately position the side of the beam. At the same time, the pressing rod exerts pressure on the top of the beam through the coordinated action of multiple components to ensure its lateral and vertical stability during the welding process. The synchronous operation of multiple locking mechanisms further improves the clamping effect and prevents any displacement or instability. The design of the entire system ensures high-precision positioning and stability of the beam during welding, thereby improving welding quality and production efficiency.

[0017] 2. In the present invention, during the rotation and reversing process, the driving motor starts and transmits the driving force to the driving plate to make it rotate. The driving plate drives the driving rod to move and slide along the inner side of the arc groove to avoid interference with the swing frame, ensuring the smooth operation of the system. After completing one circle of rotation, the pushing block enters the reversing groove and applies force to the swing frame. However, each time the driving plate rotates one circle, the pushing block only applies force to the swing frame once to ensure accurate movement. The rotation of the reversing groove simultaneously drives the second rotating plate to rotate, triggering the first rotating plate to realize the reversing operation. In this process, the sliding block slides along the top of the shell, and the limit rod moves in the slide groove to play a guiding role, ensuring smooth and accurate reversing and avoiding errors. Finally, the driving plate rotates the reversing groove 90 degrees through the pushing block, ensuring that the reversing angle is accurate each time, improving the system controllability and welding accuracy, and avoiding welding deviations caused by reversing errors.

[0018] 3. In the present invention, during the placement of the beam, the beam is first placed above the four positioning frames. The top of the positioning frame is designed with an inclined surface so that the beam can slide naturally along the inclined surface and fall safely on the support frame. During the sliding of the beam, it exerts a reaction force on the positioning frame, forcing the positioning frame to drive the movable rod to move. When the movable rod moves, it not only displaces relative to the first fixed plate, but also synchronously drives the limit plate to slide. When the limit plate slides in the internal groove of the first fixed plate, it exerts an extrusion force on the spring. After the spring is squeezed, it uses its elasticity to generate a reaction force to push the limit plate to reset. This process causes the positioning frame to rebound and stick to the side of the beam, firmly fixing both sides of the beam to avoid lateral displacement during the subsequent locking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a multifunctional beam rotating machine welding clamp of the present invention; Figure 2 This is a partial structural diagram of a multifunctional beam rotating machine welding clamp of the present invention; Figure 3 This is a schematic diagram of the internal structure of the shell of a multifunctional beam rotating machine welding clamp of the present invention; Figure 4 This is a side structural schematic diagram of a welding clamp locking mechanism of a multifunctional beam rotating machine of the present invention; Figure 5 This is a schematic diagram of the disassembled structure of a welding clamp locking mechanism of a multifunctional beam rotating machine of the present invention; Figure 6 This is a structural schematic diagram of a welding clamp rotating mechanism of a multifunctional beam rotating machine of the present invention; Figure 7 This is a schematic cross-sectional view of a welding clamp positioning member of a multifunctional beam rotating machine according to the present invention; Figure 8 This is a structural schematic diagram of a welding clamp positioning piece for a multifunctional beam rotating machine of the present invention.

[0020] In the figure: 1, housing; 2, positioning member; 21, first fixed plate; 22, positioning frame; 23, movable rod; 24, limit plate; 25, first spring; 3, locking mechanism; 31, cylinder; 311, first rotating frame; 32, connecting rod; 321, second rotating frame; 322, first rotating block; 33, pressing rod; 331, pressing block; 332, wire mesh; 333, first connecting frame; 34, fixing rod; 341, second rotating block; 342, third rotating block; 3 5. Second spring; 36. Positioning rod; 361. Lifting sleeve; 362. Extrusion block; 37. Center rod; 38. First mounting bracket; 39. Second mounting bracket; 4. Support frame; 5. First rotating plate; 51. Sliding block; 52. Limiting rod; 6. Driving motor; 7. Rotating mechanism; 71. Second fixed plate; 72. Swinging frame; 73. Second rotating plate; 74. Reversing groove; 75. Driving plate; 76. Driving rod; 761. Pushing block; 77. Arc groove; 8. Slide groove. DETAILED DESCRIPTION

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] Example 1: Reference Figure 1 - Figure 5The figure shows a multifunctional beam rotating machine welding clamp, comprising a housing 1 and a first rotating plate 5 above it, a support frame 4 fixedly connected to the center of the top of the first rotating plate 5, a plurality of locking mechanisms 3 symmetrically arranged on both sides of the support frame 4, a rotating mechanism 7 installed in the inner cavity of the housing 1, and a positioning member 2 installed on the inner side of the top of the support frame 4; When the cam 33 is in the unlock position, the locking mechanism 32 is fixed on the locking mechanism 32. When the cam 33 is unlocked, the locking mechanism 32 is unlocked. When the cam 33 is unlocked, the locking mechanism 32 is unlocked.

[0023] The first rotating frame 311 is fixedly connected to the center of one side of the cylinder 311. The bottom end of the cylinder 31 is rotatably connected to the second mounting frame 39, and the bottom end of the second mounting frame 39 is fixedly connected to the top of the first rotating plate 5. The bottom end of the third rotating block 342 is rotatably connected to the first mounting frame 38, and the bottom of the first mounting frame 38 is fixedly connected to the top of the first rotating plate 5. The pressing rod 33 is fixedly connected to the pressing block 331 at one end, and the top end of the positioning rod 36 is fixedly connected to the extrusion block 362. The first rotating block 322 is located on the inside of the first connecting frame 333 at one end, and the first rotating block 322 is rotatably connected to the first connecting frame 333. A second spring 35 is provided between the second rotating block 341 and the center rod 37, and the second spring 35 is sleeved on the outer surface of the fixed rod 34.

[0024] In this embodiment, before mechanical welding of the crossbeam, it must first be precisely positioned. During this positioning process, the system utilizes the power of the pneumatic cylinder 31 to propel the center rod 37. This propulsion process is a critical step in the entire positioning operation. When the pneumatic cylinder 31 is activated, the center rod 37 begins to move forward, transmitting its force to the fixed rod 34, causing the fixed rod 34 to begin rotating under the coordinated action of the third rotating block 342 at the bottom end and the first mounting bracket 38.

[0025] During this movement, the fixed rod 34 gradually approaches the crossbeam, causing the connected lifting sleeve 361 and positioning rod 36 to swing together. As the positioning rod 36 swings, it is driven by the squeezing block 362, causing it to gradually contact and abut the side of the crossbeam, thereby initiating a preliminary clamping and positioning operation. When multiple locking mechanisms 3 are activated simultaneously, the two sides of the crossbeam are simultaneously squeezed by the multiple squeezing blocks 362, achieving a stable clamping and positioning of the crossbeam. This operation ensures that the crossbeam is accurately positioned during the welding process, preventing displacement or instability.

[0026] As the fixed rod 34 moves, the squeezing block 362 successfully contacts the crossbeam, and the swinging of the fixed rod 34 gradually stops. However, the cylinder 31 continues to push the center rod 37, causing it to slide upward along the outer surface of the fixed rod 34. Simultaneously, the cylinder 31, under the action of the second mounting bracket 39, also begins to swing, further driving the center rod 37 to slide upward along the surface of the fixed rod 34 and exerting a squeezing force on the second spring 35.

[0027] As the center rod 37 moves, the second rotating frame 321 follows its movement, driving the pressing rod 33 through the first rotating block 322 and the first connecting frame 333. As the pressing rod 33 swings under force, it coordinates its movement with the wire mesh 332 and the second rotating block 341, rotating around the second rotating block 341. After the squeezing block 362 has completed its squeezing and positioning of the beam's sides, the squeezing block 331, driven by the squeezing rod 33, begins squeezing and limiting the beam's upper portion.

[0028] By holding down the top of the beam with the holding block 331, the entire positioning system not only ensures the horizontal stability of the beam but also effectively prevents vertical movement. The beam is now securely fixed by multiple limiting mechanisms, ensuring it will not shift or become unstable during welding, thereby improving welding accuracy and processing efficiency.

[0029] Example 2: Figure 3 and Figure 6As shown, the rotating mechanism 7 includes a second fixed plate 71, which is fixedly connected to the inner side of the housing 1. The top of the second fixed plate 71 is rotatably connected to a swing frame 72, and the top of the swing frame 72 is fixedly connected to a second rotating plate 73. The top of the second rotating plate 73 is fixedly connected to the bottom of the first rotating plate 5. A drive plate 75 is provided on one side of the swing frame 72. The bottom of the drive plate 75 is rotatably connected to the second fixed plate 71. The bottom end of the drive plate 75 is fixedly connected to a drive rod 76, and the top of the drive rod 76 is fixedly connected to a push block 761. Four reversing grooves 74 are formed on the outer surface of the swing frame 72, and an arc-shaped groove 77 is formed on the outer surface of the swing frame 72. The reversing grooves 74 engage with the push block 761. The drive motor 6 is mounted on the bottom of the second fixed plate 71, and the output end of the drive motor 6 is fixedly connected to the drive plate 75.

[0030] In this embodiment, during the rotational reversal process, the drive motor 6 starts operating, transmitting driving force to the drive plate 75, causing it to rotate. As the drive plate 75 rotates, the connected drive rod 76 also begins to move. During its rotation, the drive plate 75 slides along the inner side of the arcuate groove 77. This design ensures that the drive plate 75 does not interfere with or obstruct the swing frame 72 during rotation, thereby ensuring smooth operation of the entire system.

[0031] After the drive plate 75 completes a full rotation, the pusher block 761 is guided into the reversing slot 74. At this stage, the pusher block 761 begins to exert force on the swing frame 72, pushing it into a certain range of motion. However, the pusher block 761 only applies force to the swing frame 72 once per rotation of the drive plate 75, ensuring precise control of the movement.

[0032] At the same time, the rotation of the reversing slot 74 also drives the second rotating plate 73 to rotate together. This continuous movement triggers the first rotating plate 5 to start the reversing operation. During this process, the sliding block 51 of the first rotating plate 5 slides along the top of the housing 1, and the limit rod 52 moves within the sliding slot 8, acting as a guide to ensure smooth and accurate reversing and avoid deviations caused by uncontrolled movement.

[0033] After the drive plate 75 rotates one full circle, the push block 761 causes the reversing slot 74 to rotate 90 degrees, ensuring precise angles during each reversal. This angle control design not only improves system controllability but also effectively enhances welding accuracy, avoiding welding deviations caused by inaccurate reversals.

[0034] Example 3: According to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 7 and Figure 8As shown, the positioning member 2 includes a first fixed plate 21, the top of which is fixedly connected to the support frame 4. A limit plate 24 is slidably connected to the inside of the first fixed plate 21. One end of the limit plate 24 is fixedly connected to a movable rod 23, and one end of the movable rod 23 extends through the first fixed plate 21. A first spring 25 is provided on one side of the limit plate 24, and the first spring 25 is sleeved on the outer surface of the movable rod 23. One end of the movable rod 23 is fixedly connected to the positioning frame 22. A slide groove 8 is formed at the top of the housing 1, and a limit rod 52 is slidably connected to the inside of the slide groove 8. The top of the limit rod 52 is fixedly connected to the bottom of the first rotating plate 5. Sliding blocks 51 are fixedly connected to both sides of the first rotating plate 5, and the sliding blocks 51 are slidably connected to the housing 1.

[0035] In this embodiment, during the placement of the beam, it is first placed above the four positioning brackets 22. The top of the positioning brackets 22 is designed with an inclined surface. This inclined surface design allows the beam to slide naturally along the inclined surface during placement and ultimately be stably placed above the support bracket 4. As the beam slides down, it exerts a reaction force on the positioning brackets 22, forcing the positioning brackets 22 to move accordingly.

[0036] Due to this reaction force, the positioning frame 22 begins to move the movable rod 23 to which it is connected. As the movable rod 23 moves, it not only displaces relative to the first fixed plate 21 but also simultaneously moves the stop plate 24 connected to it. As the stop plate 24 moves, it slides within the internal groove of the first fixed plate 21. This sliding motion directly exerts a compressive force on the spring. When the spring is squeezed, its elasticity exerts a counterforce on the stop plate 24, causing it to recover.

[0037] During this process, the spring's reaction force is transmitted to the positioning bracket 22 via the stop plate 24, allowing the positioning bracket 22 to rebound and cling to the side of the beam. This spring action allows the positioning bracket 22 to firmly secure both sides of the beam, effectively preventing significant lateral displacement of the beam during the subsequent locking process. This limiting mechanism design ensures precise initial positioning of the beam, providing a more stable foundation for the subsequent locking operation of the locking mechanism 3 and ensuring precision and stability throughout the entire beam placement process.

[0038] The device's usage and working principle are as follows: When placing a beam, first place it above the four positioning brackets 22. The inclined surface at the top of the positioning brackets 22 allows the beam to slide downward onto the support bracket 4. During this process, the beam exerts a reverse force on the positioning brackets 22, driving the movable rod 23 relative to the first fixed plate 21 and pushing the limit plate 24 to slide within the first fixed plate 21, compressing the first spring 25. The compression of the first spring 25 generates a reaction force, pushing the positioning brackets 22 into contact with the side of the beam, thereby preliminarily positioning the beam and preventing significant lateral displacement when the locking mechanism 3 is locked.

[0039] Afterwards, the cylinder 31 drives the center rod 37 to transfer the force to the fixed rod 34. Under the coordinated action of the third rotating block 342 and the first mounting frame 38, the fixed rod 34 begins to rotate and gradually approaches the beam, driving the lifting sleeve 361 and the positioning rod 36 to swing together, prompting the extrusion block 362 to move and abut the beam. When multiple locking mechanisms 3 act synchronously, both sides of the beam will be squeezed by the extrusion block 362 at the same time, completing the clamping and positioning. As the extrusion block 362 contacts the beam, the fixed rod 34 stops swinging. At this time, the cylinder 31 continues to push the center rod 37, and the center rod 37 slides along the surface of the fixed rod 34. As the cylinder 31 swings under the action of the second mounting frame 39, the center rod 37 moves up and squeezes the second spring 35, driving the second rotating frame 321 to move the pressing rod 33 through the first rotating block 322 and the first connecting frame 333. When the pressing rod 33 swings under the action of the connecting rod 32, the wire mesh 332 moves together with the second rotating block 341, the pressing rod 33 rotates around the second rotating block 341, and the extrusion block 362 completes the positioning of the side of the beam. Then, the pressing block 331 presses the top of the beam under the drive of the pressing rod 33 to ensure that the beam is vertically limited during the welding process to prevent the beam from moving.

[0040] During the rotation and reversing process, the drive motor 6 drives the drive plate 75 to rotate, and the drive rod 76 moves accordingly. The drive plate 75 slides in the arc groove 77 without interfering with the swing frame 72. After the drive plate 75 rotates one circle, the push block 761 enters the reversing groove 74 and applies a force to the swing frame 72. Each time the drive plate 75 rotates one circle, the drive rod 76 and the push block 761 only apply a force to the swing frame 72 once, driving the second rotating plate 73 and the reversing groove 74 to rotate, so that the first rotating plate 5 completes the reversal. At this time, the sliding block 51 slides at the top of the shell 1, and the limit rod 52 slides in the slide groove 8, playing a guiding role to ensure the stability of the reversing process. After the drive plate 75 rotates one circle, the reversing groove 74 is driven to rotate 90 degrees through the push block 761, thereby ensuring the accuracy of the reversing angle each time and improving the accuracy of welding.

[0041] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multifunctional beam rotating machine welding clamp, comprising a housing (1) and a first rotating plate (5) above the housing, wherein a support frame (4) is fixedly connected to the center of the top of the first rotating plate (5), characterized in that: A plurality of locking mechanisms (3) are symmetrically arranged on both sides of the support frame (4); a rotating mechanism (7) is installed in the inner cavity of the shell (1); and a positioning member (2) is installed on the inner side of the top end of the support frame (4); The locking mechanism (3) comprises a central rod (37) and a pressing rod (33); a fixing rod (34) is slidably connected to the inner side of the central rod (37); a third rotating block (342) is fixedly connected to the bottom end of the fixing rod (34); a second rotating block (341) is fixedly connected to the top end of the fixing rod (34); a first rotating frame (311) is rotatably connected to the top end of the central rod (37); a second rotating frame (321) is rotatably connected to the outer side of the first rotating frame (311); and a connecting rod is fixedly connected to the center of one side of the second rotating frame (321). (32), a lifting sleeve (361) is slidably connected to the outer surface of the bottom end of the fixed rod (34), one end of the lifting sleeve (361) is fixedly connected to the positioning rod (36), one end of the pressing rod (33) is provided with a wire mesh hole (332), and one end of the pressing rod (33) is fixedly connected to the first connecting frame (333), the top end of the second rotating block (341) is located in the wire mesh hole (332), and the second rotating block (341) is rotatably connected to the pressing rod (33), and one end of the connecting rod (32) is fixedly connected to the first rotating block (322).

2. The multifunctional beam rotating machine welding clamp according to claim 1, characterized in that: A cylinder (31) is fixedly connected to the center of one side of the first rotating frame (311), a second mounting frame (39) is rotatably connected to the bottom end of the cylinder (31), and the bottom end of the second mounting frame (39) is fixedly connected to the top end of the first rotating plate (5).

3. The multifunctional beam rotating machine welding clamp according to claim 1, characterized in that: The bottom end of the third rotating block (342) is rotatably connected to the first mounting frame (38), the bottom of the first mounting frame (38) is fixedly connected to the top of the first rotating plate (5), one end of the pressing rod (33) is fixedly connected to the pressing block (331), and the top end of the positioning rod (36) is fixedly connected to the extrusion block (362).

4. The multifunctional beam rotating machine welding clamp according to claim 2, characterized in that: One end of the first rotating block (322) is located inside the first connecting frame (333), and the first rotating block (322) is rotatably connected to the first connecting frame (333). A second spring (35) is provided between the second rotating block (341) and the center rod (37), and the second spring (35) is sleeved on the outer surface of the fixed rod (34).

5. The multifunctional beam rotating machine welding clamp according to claim 4, characterized in that: The rotating mechanism (7) comprises a second fixed plate (71), the second fixed plate (71) being fixedly connected to the inner side of the housing (1), the top of the second fixed plate (71) being rotatably connected to a swing frame (72), the top of the swing frame (72) being fixedly connected to a second rotating plate (73), and the top of the second rotating plate (73) being fixedly connected to the bottom of the first rotating plate (5).

6. The multifunctional beam rotating machine welding clamp according to claim 5, characterized in that: A driving plate (75) is provided on one side of the swing frame (72); the bottom of the driving plate (75) is rotatably connected to the second fixed plate (71); the bottom end of the driving plate (75) is fixedly connected to a driving rod (76); and the top of the driving rod (76) is fixedly connected to a pushing block (761).

7. The multifunctional beam rotating machine welding clamp according to claim 6, characterized in that: Four reversing grooves (74) are formed on the outer surface of the swing frame (72), and an arc-shaped groove (77) is formed on the outer surface of the swing frame (72). The reversing grooves (74) are engaged with the push block (761). A driving motor (6) is mounted on the bottom of the second fixed plate (71), and an output end of the driving motor (6) is fixedly connected to the driving plate (75).

8. The multifunctional beam rotating machine welding clamp according to claim 1, characterized in that: The positioning member (2) comprises a first fixing plate (21), the top of the first fixing plate (21) is fixedly connected to the support frame (4), and the inner side of the first fixing plate (21) is slidably connected to a limiting plate (24), one end of the limiting plate (24) is fixedly connected to a movable rod (23), and one end of the movable rod (23) passes through the first fixing plate (21).

9. The multifunctional beam rotating machine welding clamp according to claim 8, characterized in that: A first spring (25) is provided on one side of the limit plate (24), and the first spring (25) is sleeved on the outer surface of the movable rod (23). One end of the movable rod (23) is fixedly connected to a positioning frame (22).

10. The multifunctional beam rotating machine welding clamp according to claim 9, characterized in that: A slide groove (8) is provided at the top of the housing (1), a limit rod (52) is slidably connected to the inside of the slide groove (8), the top of the limit rod (52) is fixedly connected to the bottom of the first rotating plate (5), and sliding blocks (51) are fixedly connected to both sides of the first rotating plate (5), and the sliding blocks (51) are slidably connected to the housing (1).

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