Steel structure welding auxiliary device

Abstract

The utility model discloses a kind of steel structure welding auxiliary devices, belong to steel structure processing equipment technical field.Device includes support plate, base, setting on support plate and connecting between support plate and base buffer mechanism, and the gear of motor drive is driven to tight mechanism, gear synchronous engagement both sides of rack plate, rack plate is slid on guide rail and drive clamping plate to realize centering clamping, to resist welding piece thermal deformation.Buffer mechanism will the vibration of support plate be passed in fixed frame and connecting rod transmission to extrusion plate, extrusion plate is slid through rotating shaft linkage sliding block, finally make telescopic rod compression spring, vibration energy is converted into elastic potential energy absorption.The utility model is through the collaborative arrangement of tight mechanism and buffer mechanism, effectively solve the problem that welding piece thermal deformation influences precision and equipment vibration damage, with the beneficial effect of guaranteeing welding precision, prolonging equipment service life.

Description

Technical Field

[0001] This utility model relates to the field of steel structure processing equipment technology, and in particular to a steel structure welding auxiliary device. Background Technology

[0002] Steel structures are widely used in modern construction, bridges, and heavy machinery manufacturing due to their high strength and light weight. Welding is a crucial process in the manufacturing of steel structures, connecting various components. Because steel structural components are typically large and heavy, auxiliary devices must be used to stably and precisely position and clamp the workpieces before and during welding to ensure welding quality.

[0003] However, steel structure welding is a process involving high heat input. The high temperatures generated during welding cause drastic thermal expansion and contraction in the weldment and its surrounding area. This thermal deformation can lead to warping or displacement of the weldment. If this deformation cannot be effectively suppressed, the position and dimensions of the weld will be difficult to guarantee, and in severe cases, it can affect the load-bearing capacity and safety performance of the entire steel structure.

[0004] To combat the aforementioned thermal deformation, existing welding auxiliary devices typically require the application of enormous clamping forces. Simultaneously, collisions during the hoisting and handling of the weldment, as well as the mechanical forces during the welding process, subject the entire auxiliary device to continuous vibration and impact. This long-term, complex stress state poses a severe challenge to the structural stability of the auxiliary device itself.

[0005] Existing auxiliary devices often struggle to simultaneously achieve both strong clamping power and excellent vibration resistance. While some devices can provide sufficient clamping force, their structures are prone to problems such as loosening of connectors, decreased accuracy, and even structural damage under long-term vibration and impact, resulting in short service life and high maintenance costs. Therefore, designing an auxiliary device that can provide stable and reliable clamping force to ensure welding accuracy while effectively absorbing and buffering operational vibrations to ensure the long-term stable operation of the equipment is a pressing technical problem in this field.

[0006] Therefore, this utility model proposes a steel structure welding auxiliary device to overcome the shortcomings of the prior art. Utility Model Content

[0007] In view of the problems existing in the steel structure welding auxiliary device, such as the inability to effectively resist welding thermal deformation leading to weld displacement and affecting welding accuracy, and the susceptibility to damage and short service life due to long-term vibration and impact, this utility model aims to provide a steel structure welding auxiliary device with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a steel structure welding auxiliary device, including a support plate and a base located below the support plate and providing support thereto; it also includes a clamping mechanism disposed on the support plate and a buffer mechanism disposed between the support plate and the base for absorbing vibrations of the support plate.

[0009] The clamping mechanism is powered by a motor, with the motor drive end fixedly connected to a gear. The gear teeth mesh with the teeth of the rack plate, converting rotary motion into linear motion. A sliding plate is fixedly connected to the upper surface of the rack plate, slidingly engaging with a guide rail fixed inside the support plate to ensure the smoothness and directionality of the rack plate's movement. The sliding plate is fixedly connected to the clamping plate via a vertically installed fixing rod, ultimately clamping the weldment with force.

[0010] Furthermore, the buffer mechanism effectively absorbs vibration energy. The mechanism includes a fixed frame that is fixedly connected to the bottom of the support plate, and a connecting rod is fixedly connected to the fixed frame. When the support plate vibrates, the force is transmitted through the connecting rod, the end of which is rotatably connected to the pressing plate. The pressing plate is then rotatably connected to the rotating shaft, which abuts against the sliding block. Finally, the movement of the sliding block presses the telescopic rod, causing the telescopic rod to contract and compress the spring inside, thus converting the vibration energy into elastic potential energy.

[0011] Preferably, in order to form a complete welding operation platform, a welding machine is also provided above the support plate for performing welding operations on the workpieces fixed by the clamping plate.

[0012] Preferably, the clamping mechanism specifically includes two sets of symmetrically arranged rack plates, sliding plates, fixed rods, and clamping plates. The teeth of the two sets of rack plates mesh on opposite sides of the gear diameter. This symmetrical meshing transmission structure enables the clamping plates on both sides to achieve synchronous, opposite clamping or disengaging centering movements when the motor drives the gear to rotate, ensuring the stability of the welding workpiece clamping and the accuracy of positioning.

[0013] Preferably, to protect the transmission mechanism from impact damage at the end of its stroke, an elastic anti-collision component is also provided inside the support plate. This elastic anti-collision component is located at the end of the rack plate's sliding stroke. Specifically, the elastic anti-collision component consists of a rubber plate facing the rack plate, a sliding rod fixedly connected at one end to the rubber plate, and a spring sleeved around the outer periphery of the sliding rod. One end of the spring abuts against the rubber plate, and the other end abuts against the inner wall of the support plate. When the rack plate reaches its final position, it compresses the spring by squeezing the rubber plate and the sliding rod, achieving flexible buffering.

[0014] Preferably, the buffer mechanism also includes two symmetrically arranged fixed frames, connecting rods, pressing plates, rotating shafts, sliding blocks, telescopic rods, and springs. This symmetrical layout allows the force on both sides to be absorbed and buffered evenly when the equipment is subjected to vibration. When the support plate is subjected to forced vibration, the two sets of connecting rods will drive their respective pressing plates to rotate, and through the linkage of the rotating shafts, drive the two sets of sliding blocks to move in opposite directions, thereby pressing their respective telescopic rods to achieve synchronous vibration reduction on both sides.

[0015] Preferably, to achieve final energy absorption, both ends of the telescopic rod are compressed by sliding blocks, and spring two is placed outside the telescopic rod or in conjunction with it. The two ends of spring two are linked to the telescopic rod, forming a complete force transmission and energy absorption path, ensuring the buffering effect is achieved.

[0016] This utility model has the following beneficial effects: 1. This utility model, by setting up a clamping mechanism driven by a motor and linked by a gear and rack plate, uses clamping plates on both sides to forcefully and stably clamp the weldment, which solves the problem in the prior art that the weldment is displaced due to thermal expansion and contraction or external force at high welding temperatures, resulting in inaccurate welds and unstable welding quality. It achieves the technical effect of effectively resisting weldment deformation, ensuring accurate weld position, reducing welding deviation, and significantly improving the welding quality of steel structures.

[0017] 2. This utility model, by setting a buffer mechanism composed of connecting rods, pressing plates, sliding blocks and springs between the support plate and the base, converts the vibration energy of the equipment into the elastic potential energy of the springs for absorption. This solves the problem that existing equipment suffers from long-term vibration when subjected to welding forces or workpiece handling collisions, which leads to loosening and wear of various mechanical parts, resulting in equipment failure and shortened service life. It achieves the technical effects of reducing the direct impact of vibration on the equipment, reducing component loosening and wear, reducing equipment failure rate and maintenance costs, and effectively extending the overall service life of the equipment.

[0018] 3. This utility model solves the problem that existing welding auxiliary devices have a single function and cannot simultaneously take into account process accuracy and equipment durability by integrating the clamping mechanism used to ensure welding accuracy and the buffer mechanism used to protect the equipment itself. It achieves the technical effect of compact structure, coordinated function, high-quality welding and long-term stable operation of equipment, and superior comprehensive performance. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of a steel structure welding auxiliary device proposed in this utility model; Figure 2 This is a schematic diagram of the support plate of a steel structure welding auxiliary device proposed in this utility model; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 2 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the base of a steel structure welding auxiliary device proposed in this utility model; Figure 6 for Figure 5 A magnified view of point C in the middle.

[0020] Legend: 1. Support plate; 2. Welding machine; 3. Clamping mechanism; 31. Motor; 32. Gear; 33. Rack plate; 34. Sliding plate; 35. Guide rail; 36. Fixing rod; 37. Clamping plate; 38. Elastic anti-collision component; 381. Rubber plate; 382. Sliding rod; 383. Spring one; 4. Buffer mechanism; 41. Fixing frame; 42. Connecting rod; 43. Extrusion plate; 44. Rotating shaft; 45. Sliding block; 46. Base; 47. Telescopic rod; 48. Spring two. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0022] Example: Reference Figures 1 to 6 This utility model provides a steel structure welding auxiliary device, which aims to solve the problems of existing steel structure welding fixtures being unable to effectively resist welding heat deformation and external forces, resulting in decreased weld accuracy, and the equipment itself being easily damaged and having a short lifespan due to long-term vibration and impact.

[0023] The steel structure welding auxiliary device includes a support plate 1 for supporting the weldment and a base 46 located below the support plate 1 and providing support thereto; a welding machine 2 for performing welding operations is arranged above the upper surface of the support plate 1; the core structure of the device includes a clamping mechanism 3 disposed on the support plate 1 and a buffer mechanism 4 connected between the support plate 1 and the base 46; the clamping mechanism 3 is used to clamp and fix the weldment during the welding process to resist thermal deformation and external force displacement; the buffer mechanism 4 is used to absorb and reduce the vibration generated by the equipment during operation to protect the equipment structure and extend its service life; the clamping mechanism 3 includes a motor 31 fixedly mounted on the support plate 1, and the drive end of the motor 31 and the gear The wheel 32 is fixedly connected, and the teeth of the gear 32 mesh with the teeth of the rack plate 33. A sliding plate 34 is fixedly connected to the upper surface of the rack plate 33. The sliding plate 34 is slidably fitted to the guide rail 35 fixed inside the support plate 1. The sliding plate 34 is fixedly connected to the clamping plate 37 through a vertically set fixing rod 36. The clamping plate 37 is used to directly contact and abut against the weldment. An elastic anti-collision component 38 is also provided inside the support plate 1. The elastic anti-collision component 38 is located at the end of the sliding path of the rack plate 33. The elastic anti-collision component 38 includes a rubber plate 381 facing the rack plate 33, a sliding rod 382 fixedly connected to the rubber plate 381 at one end, and a spring 383 sleeved on the outer periphery of the sliding rod 382. The buffer mechanism 4 includes a fixed frame 41 whose bottom is fixedly connected to the support plate 1. A connecting rod 42 is fixedly connected to the fixed frame 41. The end of the connecting rod 42 is rotatably connected to the pressing plate 43. The pressing plate 43 is rotatably connected to the rotating shaft 44. The rotating shaft 44 abuts against the sliding block 45. The sliding block 45 presses the telescopic rod 47. The contraction of the telescopic rod 47 compresses the spring 48.

[0024] The power source of the clamping mechanism 3 is a motor 31, which is fixedly mounted on the support plate 1. Its drive end is fixedly connected to the gear 32. The clamping mechanism 3 includes two sets of symmetrically arranged structures. Each set of structures includes a rack plate 33, a sliding plate 34, a guide rail 35, a fixing rod 36, and a clamping plate 37. The teeth of the two sets of rack plates 33 mesh with the teeth on opposite sides of the gear 32 in the diameter direction. A sliding plate 34 is fixedly connected to the upper surface of each rack plate 33, while a guide rail 35 is fixedly installed inside the support plate 1. The sliding plate 34 and the guide rail 35 form a sliding fit. This structure ensures that the rack plate 33 can only perform stable linear reciprocating motion during the movement; one end of the vertically set fixed rod 36 is fixedly connected to the sliding plate 34, and the other end is fixedly connected to the clamping plate 37; when the motor 31 starts and drives the gear 32 to rotate, the meshing transmission relationship causes the rack plates 33 on both sides to move synchronously and in opposite directions in a linear motion, which in turn drives the clamping plates 37 on both sides to perform the action of centering, clamping or loosening the weldment through the sliding plate 34 and the fixed rod 36, thereby effectively offsetting the displacement caused by thermal expansion and contraction or external force during the welding process.

[0025] The support plate 1 is also equipped with an elastic anti-collision component 38, which is located at the end of the sliding stroke of the rack plate 33. The elastic anti-collision component 38 includes a rubber plate 381 facing the rack plate 33, a sliding rod 382 fixedly connected to the rubber plate 381 at one end, and a spring 383 sleeved on the outer periphery of the sliding rod 382. One end of the spring 383 abuts against the rubber plate 381, and the other end abuts against the inner wall of the support plate 1. When the rack plate 33 slides to the position, its end will first contact and squeeze the rubber plate 381, and then compress the spring 383 through the sliding rod 382, ​​thereby converting the impact kinetic energy into the elastic potential energy of the spring, and playing a buffering and protective role.

[0026] The buffer mechanism 4 includes two symmetrically arranged structures for symmetrically absorbing and buffering vibration energy. Each structure includes a fixed frame 41, a connecting rod 42, a compression plate 43, a rotating shaft 44, a sliding block 45, a telescopic rod 47, and a second spring 48. The top of the fixed frame 41 is fixedly connected to the bottom surface of the support plate 1. One end of the connecting rod 42 is fixedly connected to the fixed frame 41, and the other end is rotatably connected to the compression plate 43. The compression plate 43 is rotatably connected to the rotating shaft 44 through a central pin. The rotating shaft 44 abuts against the side of the sliding block 45, forming a contact surface that can transmit the compressive force. The adjacent sides of the two sliding blocks 45 abut against the two ends of the telescopic rod 47. The second spring 48 is sleeved on the outside of the telescopic rod 47 or cooperates with the telescopic rod 47, and its two ends are linked with the telescopic rod 47. Through this series of ingenious lever and linkage combinations, when the support plate 1 vibrates, it can convert the vertical vibration energy into the horizontal spring compression energy, thereby achieving the vibration reduction effect.

[0027] The implementation principle of this application embodiment is as follows: The workpiece is placed on the support plate 1 and welded by the welding machine 2. The high temperature during welding causes the metal to expand and contract, and the welding operation also generates external force. This causes displacement due to deformation or external force. To ensure the accurate position of the weld, the workpiece is clamped and fixed by the clamping mechanism 3. The motor 31 is started, which drives the gear 32 fixedly connected to its drive end to rotate. Because the teeth of the gear 32 mesh with the teeth of the rack plate 33, when the gear 32 is driven to rotate, the rack plates 33 on both sides move linearly in opposite directions. At this time, each of the two rack plates 33 drives the sliding plate 34 fixed to it at the top to slide outside the guide rail 35 fixed in the support plate 1. Then, the sliding plate 34 is driven by the fixing rod 36 fixed to it at the top. The moving clamping plate 37 moves, thereby clamping the weldment. Multiple elastic anti-collision components 38 are added inside the support plate 1 to prevent the rack plate 33 from being damaged by hard impact when it slides to the end. When the rack plate 33 slides to the end, it hits the rubber plate 381, which in turn drives the sliding rod 382 fixed on one side to move, thereby compressing the spring 383, thereby relieving the impact force and forming a stable clamping force on the weldment. This effectively counteracts the thermal expansion and contraction deformation and external force displacement caused by the high temperature of welding, ensuring the accurate position of the weld and reducing welding deviation, thereby achieving the effect of clamping and fixing the weldment.

[0028] The mechanical force during welding and the collisions during workpiece handling will cause the worktable to vibrate. Long-term vibration will cause the mechanical parts such as support plate 1, base 46, and connecting parts to loosen and wear. The buffer mechanism 4 reduces the direct impact of vibration on the equipment. When the support plate 1 vibrates under force, the force will be transmitted to the two fixed frames 41 fixed to the bottom of the support plate 1. The fixed frames 41 will then drive the connecting rod 42 fixed to them to vibrate. During vibration, the connecting rod 42 will squeeze the externally rotatable pressing plate 43 to rotate. The pressing plate 43 will then move through the rotating shaft 44 rotatably connected to it. The rotating shaft 44 will squeeze and drive the external sliding block 45 to move. At this time, the two sliding blocks 45 move in opposite directions. When they move closer together, they will squeeze the telescopic rod 47 fixed on the close side. When the telescopic rod 47 retracts, it will squeeze the second spring 48. The second spring 48 will elastically contract and absorb the vibration energy, reduce the loosening and wear of mechanical parts caused by long-term vibration, reduce the frequency of equipment failure, reduce maintenance costs, and extend the service life of the overall equipment, thereby achieving the buffering effect.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steel structure welding auxiliary device, comprising a support plate (1) for carrying the weldment, and a base (46) located below the support plate (1) and providing support thereto. Its features are, The device also includes a clamping mechanism (3) disposed on the support plate (1) and a buffer mechanism (4) disposed between the support plate (1) and the base (46) for absorbing the vibration of the support plate (1). The clamping mechanism (3) includes a motor (31) fixedly installed on the support plate (1), a gear (32) whose drive end is fixedly connected to the motor (31), and a rack plate (33) meshing with the gear (32). A sliding plate (34) is fixedly connected to the upper surface of the rack plate (33). The sliding plate (34) is slidably fitted to a guide rail (35) fixed inside the support plate (1). The sliding plate (34) is fixedly connected to a clamping plate (37) through a vertically arranged fixing rod (36). The clamping plate (37) is used to clamp the weldment located on the support plate (1).

2. The steel structure welding auxiliary device according to claim 1, characterized in that, The buffer mechanism (4) includes a fixed frame (41) whose bottom is fixedly connected to the support plate (1). A connecting rod (42) is fixedly connected to the fixed frame (41). The end of the connecting rod (42) is rotatably connected to the extrusion plate (43). The extrusion plate (43) is rotatably connected to the rotating shaft (44). The rotating shaft (44) abuts against the sliding block (45). The movement of the sliding block (45) extrudes the telescopic rod (47). The contraction of the telescopic rod (47) compresses the second spring (48). A welding machine (2) for performing welding operations on the weldment is also provided above the support plate (1).

3. The steel structure welding auxiliary device according to claim 1, characterized in that, The clamping mechanism (3) includes two sets of symmetrically arranged rack plates (33), sliding plates (34), fixing rods (36) and clamping plates (37); the teeth of the two sets of rack plates (33) respectively mesh with the opposite sides of the gear (32) in the diameter direction, so that when the gear (32) rotates, the two sets of clamping plates (37) achieve synchronous opposite or opposite movements.

4. The steel structure welding auxiliary device according to claim 3, characterized in that, The support plate (1) is also provided with an elastic anti-collision component (38); the elastic anti-collision component (38) is located at the end of the sliding stroke of the rack plate (33) and is used to buffer the impact generated when the rack plate (33) moves to the end.

5. The steel structure welding auxiliary device according to claim 4, characterized in that, The elastic anti-collision component (38) includes a rubber plate (381) facing the rack plate (33), a sliding rod (382) with one end fixedly connected to the rubber plate (381), and a spring (383) sleeved on the outer periphery of the sliding rod (382); one end of the spring (383) abuts against the rubber plate (381), and the other end abuts against the inner wall of the support plate (1).

6. The steel structure welding auxiliary device according to claim 2, characterized in that, The buffer mechanism (4) includes two sets of symmetrically arranged fixed frames (41), connecting rods (42), pressing plates (43), rotating shafts (44), sliding blocks (45), telescopic rods (47), and springs (48), which are used to symmetrically absorb and buffer vibrations.

7. The steel structure welding auxiliary device according to claim 6, characterized in that, When the support plate (1) is subjected to forced vibration, the two sets of connecting rods (42) drive the corresponding pressing plates (43) to rotate. The pressing plates (43) drive the two sets of sliding blocks (45) to move in opposite directions through the linkage of the rotating shaft (44), and press the corresponding telescopic rods (47) respectively.

8. The steel structure welding auxiliary device according to claim 7, characterized in that, The two ends of the telescopic rod (47) are squeezed by the sliding block (45), the second spring (48) is housed inside the telescopic rod (47) or cooperates with it, and the two ends of the second spring (48) are linked with the telescopic rod (47).

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