Anti-deformation auxiliary welding device for safety guardrails
By introducing guide rails and sliding blocks into the safety guardrail welding device, the problem of adjusting the clamping force and support position during the welding process was solved, achieving positioning stability and consistency of the welded product dimensions.
Patent Information
- Application Number
- CN202610903811.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-23
- Publication Date
- 2026-08-25
AI Technical Summary
Existing safety railing welding devices cannot effectively adjust the clamping force and support position during the welding process, resulting in deformation and dimensional instability of the railing components after welding.
The structure includes a base, guide rail, load-bearing components, positioning components, compensation components, and locking components. Through the cooperation of elastic elements and sliding blocks, it achieves dynamic support and lifting of the guardrail crossbar during the welding process, adapts to the cooling and contraction of the components, and maintains the stability of the welding position and dimensional consistency.
It effectively reduces the superposition of component deformation during welding, maintains the straightness of the guardrail and the spacing between posts after welding, and improves the stability of welding positioning and the consistency of finished product dimensions.
Smart Images
Figure CN122625890A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the technical field of welding auxiliary equipment, specifically a safety railing anti-deformation auxiliary welding device. Background Technology
[0002] The anti-deformation auxiliary welding device for safety railings is a positioning and support device used in the assembly and welding process of safety railings. It is mainly used to support, limit, and fix the railing posts, crossbars, and connecting rods, ensuring that each component maintains its predetermined installation position before welding. Safety railings typically consist of multiple posts and crossbars arranged sequentially, with multiple welding positions between each component. The device needs to maintain the spacing between posts, the height of crossbars, and the overall straightness of the railing during the welding process to ensure that the finished safety railing meets the installation size requirements.
[0003] Safety railings are long, and the welded areas expand when heated and contract when cooled. This contraction force is transmitted to adjacent areas through the crossbars and posts. After the previous weld is completed, its displacement changes the component state of subsequent welded areas. When multiple welded areas are processed consecutively, the deformations from each location gradually accumulate, causing the crossbars to bend and the posts to tilt. Even when the railing components are fixed, forces accumulate. After welding is completed and the fixing is removed, the components spring back, causing the actual dimensions of the railing to deviate from the positioning dimensions at the time of welding. Existing technologies typically use fixed welding platforms, positioning blocks, and clamps to hold the railing components. Some devices limit component movement by increasing the number of clamping points or increasing the clamping force. In such structures, each clamping position is independent, and the clamping degree remains unchanged during welding. The support state of adjacent positions cannot be adjusted according to the contraction displacement of the welded area. When the clamping force is insufficient, the railing components will move during welding. When the clamping force is too large, the contraction of the components is restricted, and the deformation is transmitted and concentrated in the unwelded areas, resulting in springback after the clamp is removed. Summary of the Invention
[0004] To address the problem that existing devices cannot simultaneously adjust the clamping force and support position when the guardrail undergoes thermal shrinkage displacement, making it difficult to balance positioning stability during welding and dimensional retention after welding, this invention provides an auxiliary welding device for preventing deformation of safety guardrails.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: It includes a base, two guide rails on the top of the base, a load-bearing component on the guide rails, a positioning component and a compensation component on the load-bearing component, and a locking component between the base and the load-bearing component. The load-bearing component includes a first beam and a plurality of second beams. The positioning component includes a first elastic element disposed on the second beam; The compensation component includes a second block and a third block slidably disposed within the second beam, the third block forming an abutting fit with the second block, and a fourth block slidably disposed on the second beam for supporting the guardrail crossbar; When the guardrail components cool and shrink, the second beam moves toward the first beam, the second block moves toward the end of the second beam, and the second block drives the third block to move, so that the first elastic element releases the pressure on the guardrail crossbar, and then the fourth block pushes up the guardrail crossbar.
[0006] Preferably, the first beam is fixed to the base, the bottom of the second beam is provided with two first blocks that are slidably engaged with the two guide rails respectively, the second beam is provided with a first cavity, and the second beam is provided with a first groove and a second groove that communicate with the first cavity.
[0007] Preferably, both the first beam and the second beam are provided with a platform, the platform is provided with a third groove for placing the guardrail post, and the platform is also provided with a fourth groove for placing the guardrail crossbar, the third groove and the fourth groove are connected to each other.
[0008] Preferably, the positioning component further includes a plate, one end of which is rotatably connected to the second beam via a connecting part, and the other end is provided with a first locking part that engages with the second beam, and one end of the first elastic member is fixed to the second beam.
[0009] Preferably, the compensation component further includes a first rod, which is provided on both the first beam and the second beam. The end of the first rod away from the first beam extends into the adjacent second beam. One end of the first rod is provided with a first blocking part, and a second elastic element is sleeved on the first rod.
[0010] Preferably, the first rod body is provided with a closed fifth groove, the fifth groove having a straight section and an inclined section, and the second block body is provided with a second rod body extending into the fifth groove.
[0011] Preferably, the second block has a second cavity, and the third block has a pin that extends into the second cavity.
[0012] Preferably, the third block is provided with a shaft that extends through the second beam, and the shaft is provided with a second locking part. The second locking part is used to restrict the first elastic member from restoring. When the third block moves, the second locking part leaves the first elastic member, so that the first elastic member releases its pressure on the guardrail crossbar.
[0013] Preferably, the third block is provided with an inclined portion, and the fourth block is provided with a driven portion that slides with the inclined portion. After the first elastic member releases its pressure on the guardrail crossbar, the inclined portion pushes the fourth block closer to the guardrail crossbar through the driven portion.
[0014] Preferably, the locking assembly includes a limiting member disposed on the base, a third rod rotating on the second beam via a rotating part, the third rod having an engaging part that cooperates with the limiting member, a second blocking part on the second beam, a third elastic member on the rotating part for pushing the third rod closer to the limiting member, a fourth rod slidably disposed within the base, a fifth block on the fourth rod, an unlocking part on the fifth block for pushing the engaging part away from the limiting member, and a fourth elastic member between the fourth rod and the base for pushing the fourth rod back to its original position.
[0015] The beneficial effects of this invention are as follows: I. In this invention, when the guardrail components cool and shrink after welding, the second beam moves along the guide rail toward the first beam, and drives the second and third blocks to move in sequence, so that the first elastic element releases the pressure on the guardrail crossbar. Then, the fourth block lifts the guardrail crossbar near the welded end, thereby releasing the displacement caused by welding shrinkage, while maintaining the supported state of the welded end, reducing the deformation superposition caused by continuous processing of multiple welding positions, avoiding the concentrated transmission of shrinkage to the unwelded area, and reducing the cooling rebound of the guardrail components after they are released from fixation, so as to keep the spacing between guardrail posts and the overall straightness of the guardrail stable. II. In this invention, the first beam forms a fixed bearing reference, the second beam can move along the guide rail, the compensation component can convert the contraction displacement of the second beam into a pressing release and lifting support action, the locking component can maintain the contraction position of the second beam and release the restriction after the guardrail component has cooled down, thus preventing the second beam from resetting prematurely during the cooling process. Together with the first elastic element and the fourth block, a relationship of first releasing the pressing and then lifting is formed, so that the guardrail crossbar is still stably supported when releasing the contraction displacement, thereby improving the stability of the guardrail welding positioning and the dimensional consistency of the welded product. Attached Figure Description
[0016] Figure 1 This is a three-dimensional schematic diagram of the overall structure of the present invention; Figure 2 This is another three-dimensional schematic diagram of the overall structure of the present invention; Figure 3 This is a top view of the overall structure of the present invention; Figure 4 This is a three-dimensional schematic diagram of the first beam structure of the present invention; Figure 5 This is a three-dimensional schematic diagram of the second beam structure of the present invention; Figure 6 This is another three-dimensional schematic diagram of the second beam structure of the present invention; Figure 7 This is a three-dimensional schematic diagram of the internal structure of the second beam of the present invention; Figure 8 This is a three-dimensional schematic diagram of the mating structure of the first rod and the second block of the present invention; Figure 9 This is a bottom perspective view of the bottom structure of the second beam of the present invention; Figure 10 This is the invention Figure 9 Enlarged view of point A in the middle; Figure 11 This is a three-dimensional schematic diagram of the locking component structure of the present invention.
[0017] In the diagram: 1. Base; 2. Guide rail; 3. Bearing assembly; 31. First beam; 32. Second beam; 321. First block; 322. First cavity; 323. First groove; 324. Second groove; 33. Platform; 331. Third groove; 332. Fourth groove; 4. Positioning assembly; 41. Plate; 411. Connecting part; 412. First locking part; 42. First elastic element; 5. Compensation assembly; 51. First rod; 511. First blocking part; 52. Fifth groove; 521. Straight section; 522. Inclined section. 53. Inclined section; 54. Second elastic element; 55. Second block; 56. Second cavity; 57. Second rod; 58. Shaft; 59. Second locking part; 50. Third block; 51. Pin; 52. Inclined part; 57. Fourth block; 58. Driven part; 6. Locking assembly; 61. Limiting element; 62. Third rod; 621. Rotating part; 622. Engaging part; 63. Second blocking part; 64. Third elastic element; 65. Fourth rod; 66. Fifth block; 661. Unlocking part; 67. Fourth elastic element. Detailed Implementation
[0018] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.
[0019] Please see Figure 1 A safety guardrail anti-deformation auxiliary welding device includes a base 1, a guide rail 2, a load-bearing component 3, a positioning component 4, a compensation component 5, and a locking component 6. Two guide rails 2 are provided, which are parallel to each other and symmetrically installed on the surface of the base 1 away from the welding operation platform. The two guide rails 2 jointly support the load-bearing component 3. The positioning component 4 and the compensation component 5 are both set on the load-bearing component 3. The locking component 6 is set between the base 1 and the load-bearing component 3.
[0020] It should be noted that, in combination Figure 1 and Figure 2 This device is used for positioning and support during the assembly and welding process of safety guardrails. The base 1 is placed on the welding work platform. The bearing components 3 are arranged sequentially along the length of the guide rail 2 to support the guardrail posts and guardrail crossbars. The positioning components 4 are used to restrict the guardrail posts and press the guardrail crossbars. The compensation components 5 are used to receive the displacement caused by the cooling and shrinkage of the guardrail components and sequentially release the pressure on the guardrail crossbars and lift the guardrail crossbars to the position near the welding end. The locking components 6 are used to maintain the shrinkage position of the bearing components 3 and release the position restriction after the guardrail components have cooled down.
[0021] like Figures 2 to 4 As shown, the supporting component 3 includes a first beam 31 and four second beams 32. Both the first beam 31 and the second beam 32 are long strip-shaped beam structures and are arranged parallel to the surface of the base 1. The first beam 31 is fixedly installed at one end of the base 1 along the length direction of the guide rail 2. The four second beams 32 are arranged sequentially along the length direction of the guide rail 2 on the adjacent sides of the first beam 31. The bottom of each second beam 32 is fixedly connected to two first blocks 321. The two first blocks 321 are symmetrically arranged and slide in cooperation with the two guide rails 2 respectively. Each pair of opposite first blocks 321 jointly supports the second beam 32 and restricts the rotation of the second beam 32, so that the second beam 32 can only move along the length direction of the guide rail 2.
[0022] like Figure 5 and Figure 6 As shown, each second beam 32 has a first cavity 322 inside, which is used to accommodate the compensation component 5. Each second beam 32 has a first groove 323 and a second groove 324 at its top, both of which communicate with the first cavity 322. The first groove 323 penetrates the top wall of the second beam 32 vertically. The fourth block 57 slides through the first groove 323, so that the fourth block 57 can only slide vertically along the direction of the groove wall of the first groove 323. Similarly, the second groove 324 penetrates the top wall of the second beam 32 vertically. Figure 6 and Figure 7 As shown, the shaft 55 slides through the second groove 324. When the shaft 55 slides with the third block 56, it can move under the restriction of the groove wall of the second groove 324.
[0023] like Figure 4 and Figure 5As shown, a pedestal 33 is fixedly installed on the top of the first beam 31 and the top of each second beam 32. The pedestal 33 installed on the second beam 32 can move along the guide rail 2 with the second beam 32. Each pedestal 33 has a third groove 331 and a fourth groove 332. The extension direction of the third groove 331 is perpendicular to the length direction of the guide rail 2, and it is used to place the guardrail post. The fourth groove 332 extends along the length direction of the guide rail 2 and is used to place the guardrail crossbar. The third groove 331 and the fourth groove 332 are oriented in the same direction. The fourth groove 332 is perpendicular to the third groove 331 and connects with the third groove 331, so that the end of the guardrail crossbar can be close to the side surface of the guardrail post and the welding position of the guardrail is reserved. The inner wall of the third groove 331 is used to restrict the movement of the guardrail post along the length of the guide rail 2, and the inner wall of the fourth groove 332 is used to restrict the guardrail crossbar from shifting in a direction perpendicular to the length of the guide rail 2. After the guardrail crossbar is released from the clamping, it can move slightly along the extension direction of the fourth groove 332, thereby satisfying the movement required for welding shrinkage.
[0024] When using, combine Figure 4 and Figure 5 The first beam 31 forms a fixed reference, and the second beam 32 slides with the guide rail 2 through the first block 321, so that the second beam 32 can move toward the first beam 31 as the guardrail components cool and shrink. After the locking component 6 is released, it moves along the reset direction. The guardrail post is placed in the third groove 331, and the guardrail crossbar is placed in the fourth groove 332. The end of the guardrail crossbar is close to the guardrail post to maintain the set welding position relationship.
[0025] like Figures 3 to 5 As shown, the positioning component 4 includes a plate 41 and a first elastic element 42. A plate 41 corresponding to the third groove 331 is provided directly above each platform 33. The plate 41 is preferably made of steel plate. One end of the plate 41 has a connecting part 411, which is preferably a rotating seat. Its bottom is fixedly connected to the second beam 32, allowing the plate 41 to rotate above the platform 33 with the connecting part 411 as a reference. The other end of the plate 41 has a first locking part 412, which is preferably a latch. The movable part of the latch is rotatably connected to the plate 41. The fastener is fixedly connected to the second beam 32, so that the first locking part 412 can be fastened to the side of the second beam 32, thereby fixing the plate 41. When the plate 41 is opened, the guardrail post can be inserted into the third groove 331. The plate 41 is flipped to cover the opening of the third groove 331. After the first locking part 412 is fastened to the second beam 32, the plate 41 and the third groove 331 together restrict the guardrail post from leaving the platform 33. The width of the plate 41 is not enough to cover the welding position where the end of the guardrail crossbar connects to the side of the guardrail post, thereby avoiding blocking the welding gun from approaching the welding area.
[0026] like Figure 5 As shown, the first elastic member 42 is L-shaped and preferably made of spring steel plate. One end of the first elastic member 42 is fixedly installed on the second beam 32, and the other end is a free end that can elastically deform. This free end extends to the opening of the fourth groove 332 and corresponds to the guardrail crossbar. When the first elastic member 42 is not restricted by the second locking part 551, its free end recovers in the direction away from the platform 33 by its own elastic force. When the second locking part 551 presses the first elastic member 42, the first elastic member 42 bends toward the fourth groove 332 and abuts against the surface of the guardrail crossbar, applying an elastic pressing force toward the fourth groove 332 to the guardrail crossbar.
[0027] When using, combine Figures 4 to 6 The operator places the guardrail post in the third groove 331, flips the plate 41 and engages the first locking part 412 with the second beam 32, thereby confining the guardrail post within the third groove 331 for fixation. When the guardrail crossbar is placed in the fourth groove 332 with its welded end close to the side surface of the guardrail post, the second locking part 551 presses the first elastic member 42 against the guardrail crossbar, keeping the guardrail crossbar in the set position of the fourth groove 332.
[0028] It should be noted that, in combination Figures 3 to 5 In this embodiment, the bearing part refers to the adjacent first beam 31 or second beam 32 and its corresponding base 33. The first rod 51 connects the two adjacent bearing parts. All first rods 51 have a fixed end on the side closer to the first beam 31 and a movable end on the side away from the first beam 31.
[0029] like Figures 6 to 8 As shown, the compensation component 5 includes a first rod 51, which passes through between two adjacent bearing parts. The first rod 51 extends along the length of the guide rail 2, with one end fixedly installed on the bearing part near the first beam 31 and the other end extending into the first cavity 322 opened in the adjacent second beam 32. The end of the first rod 51 extending out of the first cavity 322 has a first blocking part 511. The size of the first blocking part 511 is larger than the opening size of the first rod 51 at the position where it passes through the first cavity 322. When the second elastic member 53 pushes the second beam 32 to move in the reset direction, the first blocking part 511 abuts against the corresponding inner wall of the first cavity 322 to limit the second beam 32 from continuing to move, thereby maintaining the preset maximum distance between adjacent pedestals 33 and the initial welding distance between adjacent guardrail posts.
[0030] like Figures 6 to 8As shown, a fifth groove 52 is formed on the surface of the first rod 51 located inside the first cavity 322. The fifth groove 52 is a closed groove, including a straight section 521 and an inclined section 522 that are interconnected. The fifth groove 52 has two groove walls that are arranged opposite each other along its width direction. The part of the second rod 542 that extends into the fifth groove 52 is always located between the two groove walls, so that the second rod 542 can move along the fifth groove 52 and can be abutted by the two groove walls respectively when the movement direction of the second beam 32 changes. The straight section 521 extends along the length direction of the first rod 51 and is parallel to the length direction of the guide rail 2. The inclined section 522 is shaped to be parallel to the straight section 521. With one end of segment 521 as a reference, the portion gradually moving away from the straight segment 521 gradually approaches the surface of the first rod 51, so that the inclined segment 522 and the straight segment 521 form an angle. A second elastic element 53 is provided between two adjacent bearing parts. The second elastic element 53 is preferably a helical compression spring and is provided along the length direction of the guide rail 2. The two ends of the second elastic element 53 abut against the adjacent first beam 31 and second beam 32, or abut against two adjacent second beams 32, respectively. It can apply a pushing force to push them away from each other. It is used to eliminate the movement gap between adjacent pedestals 33 and push the corresponding second beam 32 to reset after the locking component 6 is released.
[0031] like Figures 6 to 8 As shown, the second block 54 is slidably disposed within the first cavity 322 and is restricted by the inner wall of the first cavity 322, allowing it to move only along the direction of the first cavity 322. A second rod 542 is fixedly connected to the side of the second block 54 closest to the first rod 51. The end of the second rod 542 away from the second block 54 extends into the fifth groove 52, and the portion of the second rod 542 extending into the fifth groove 52 is arc-shaped, thereby reducing friction between it and the fifth groove 52. The second rod 542 moves within the straight section 521. At this time, the straight section 521 will not exert a thrust on the second rod 542, and the second block 54 will maintain its original position, thereby absorbing the small distance displacement between the second beam 32 and the first rod 51 caused by welding vibration. After the second rod 542 enters the inclined section 522 from the straight section 521, the inner wall of the inclined section 522 exerts a thrust on the arc surface of the second rod 542, causing the second rod 542 to push the second block 54 to move, thereby converting the displacement of the second beam 32 along the guide rail 2 into the movement of the second block 54.
[0032] like Figures 6 to 8As shown, when the second beam 32 moves along the reset direction, the relative movement direction between the first rod 51 and the second beam 32 changes. The second rod 542 moves along the inclined section 522 toward the straight section 521. One side of the groove wall of the inclined section 522 abuts against the arc surface of the second rod 542 and applies a force to the second rod 542. The second rod 542 drives the second block 54 to move synchronously. After the second rod 542 returns to the straight section 521, the second block 54 returns to its initial position.
[0033] like Figures 6 to 8 As shown, the second block 54 has a second cavity 541 inside, and the direction of the second cavity 541 is parallel to the second rod 542. The third block 56 is disposed in the first cavity 322, and its two ends are slidably engaged with the first cavity 322, so that the third block 56 can only move along the direction of the first cavity 322. A pin 561 is fixedly connected to the side of the third block 56 near the second block 54. The pin 561 extends into the second cavity 541, and the end of the pin 561 that extends into the second cavity 541 has an anti-drop head, which prevents it from sliding out of the second cavity 541. Thus, the pin 561 can pull the second block 54 to move through the engagement of the anti-drop head with the second cavity 541. The length of the second cavity 541 is slightly less than the length of the pin 561, and in the initial state, the pin 561... Only a small portion extends into the second cavity 541, allowing the pin 561 and the end wall of the second cavity 541 to have a free travel. In the initial state, the pin 561 and the second cavity 541 are used to maintain a distance between the end wall of the pin 561. When the second block 54 begins to move, the second cavity 541 moves relative to the pin 561, while the third block 56 remains stationary. The second block 54 continues to move until the end wall of the second cavity 541 abuts against the pin 561. Then, the second block 54 pushes the third block 56 to move synchronously through the pin 561. This free travel is used to delay the movement of the third block 56, the second locking part 551, and the fourth block 57, so that they start to move only after the displacement of the second beam 32 reaches the preset shrinkage amount, thus avoiding premature interference of the structure with the welding of the guardrail crossbar.
[0034] like Figures 6 to 8As shown, a shaft 55 is fixedly connected to the surface of the third block 56 facing the base 33. The shaft 55 extends out of the second groove 324, and a second locking part 551 is fixedly connected to its top. The second locking part 551 is located on the side of the shaft 55 near the free end of the first elastic member 42. In the initial state, the second locking part 551 overlaps with the free end of the first elastic member 42 and presses the first elastic member 42 against the fourth groove 332, keeping the first elastic member 42 in a bent and stored state and pressing the guardrail crossbar. When the third block 56 moves, the shaft 55 and the second locking part 551 move synchronously. The overlap length between the second locking part 551 and the free end of the first elastic member 42 gradually decreases until the second locking part 551 leaves the first elastic member 42. Then, the first elastic member 42 recovers in the direction away from the bottom of the fourth groove 332 due to its own elasticity, so that the first elastic member 42 leaves the guardrail crossbar, allowing the guardrail crossbar to produce a small movement that adapts to the welding shrinkage.
[0035] like Figures 6 to 8 As shown, the third block 56 has an inclined portion 562 formed on the top of the base 33. The inclined portion 562 is a smooth slope. The fourth block 57 slides through the first groove 323, and its bottom end has a driven portion 571. The driven portion 571 slides in contact with the inclined portion 562. The cooperation between the inclined portion 562 and the driven portion 571 is configured such that when the third block 56 starts to move, the second locking portion 551 gradually moves away from the first elastic member 42. After the third block 56 continues to move, the inclined portion 562 pushes the fourth block 57 to move through the driven portion 571, causing the fourth block 57 to move towards the guardrail crossbar, thereby generating a pushing effect on the bottom of the guardrail crossbar. This action occurs after the first elastic member 42 is released from compression, so that the fourth block 57 only provides support for the position of the guardrail crossbar near the welding end, and does not rigidly clamp the guardrail crossbar together with the first elastic member 42. The third block 56 moves, thereby releasing the shrinkage deformation of the guardrail crossbar caused by welding, and preventing excessive bending towards the bottom of the fourth groove 332. When the third block 56 moves, the second locking part 551 approaches the edge of the free end of the first elastic member 42, and gradually straddles the side of the first elastic member 42 away from the bottom of the fourth groove 332 during the continued movement. At this time, the worker presses and bends the first elastic member 42 and presses the free end into the bottom of the second locking part 551, thereby pressing the first elastic member 42 back towards the fourth groove 332, so that the first elastic member 42 returns to the bent and stored state. When the third block 56 moves, the inclined part 562 gradually exits from the side of the driven part 571 toward the base 1. After the fourth block 57 loses the support of the inclined part 562, it moves along the falling direction under its own weight and the force of the guardrail crossbar, so that the fourth block 57 is reset, without the need for a separate reset structure.
[0036] It should be noted that, in combination Figures 6 to 8The straight section 521 of the fifth groove 52 and the second cavity 541 of the second block 54 form a two-stage empty stroke. The straight section 521 is used to filter welding vibration and small shrinkage displacement, and the second cavity 541 is used to delay the action of the third block 56, thereby preventing the first elastic element 42 and the fourth block 57 from acting prematurely.
[0037] like Figures 9 to 11 The locking assembly 6 includes a limiting member 61, which is fixedly installed inside one side of the base 1. Its length direction is parallel to the length direction of the guide rail 2. The limiting member 61 preferably adopts a rack structure, with the teeth having an inclined surface and a vertical surface. Its inclined surface allows the engaging part 622 to pass over when the second beam 32 moves in the contraction direction, and the vertical surface can prevent the engaging part 622 from passing over when the second beam 32 moves in the reset direction, so that the engaging part 622 can only move unidirectionally on the limiting member 61 during operation. Each second beam 32 is correspondingly provided with a third rod 62. The top end of the third rod 62 is hinged to the second beam 32 through a rotating part 621, and the end away from the second beam 32 has an engaging part 622 that matches the tooth groove of the limiting member 61. A second blocking part 63 is fixedly installed at the bottom of the second beam 32. A third elastic member 64 is provided at the rotating part 621. The third elastic member 64 is preferably a torsion spring, and its two ends are respectively connected to the second beam 32 and the third rod 62. The three rods 62 can apply a torque to the third rod 62 to bring it closer to the second blocking part 63. When the second beam 32 moves in the contraction direction, the corresponding tooth surface of the limiting member 61 pushes the engaging part 622, causing the third rod 62 to overcome the elastic force of the third elastic member 64 and swing away from the second blocking part 63. After the engaging part 622 passes the teeth of the limiting member 61, the third elastic member 64 pushes the third rod 62 to reset, so that the engaging part 622 enters the adjacent tooth groove. The second beam 32 can thus move unidirectionally along the limiting member 61. When the second beam 32 is pushed by the second elastic member 53 and tends to reset, the vertical tooth surface of the limiting member 61 applies a reverse force to the engaging part 622, causing the third rod 62 to swing towards the second blocking part 63. After the third rod 62 abuts against the second blocking part 63, it cannot continue to swing, so that the engaging part 622 cannot pass the teeth of the limiting member 61, thereby keeping the second beam 32 in the welded contraction position of the railing.
[0038] like Figures 9 to 11A fourth rod 65 is slidably inserted inside the base 1. The length direction of the fourth rod 65 is parallel to the length direction of the guide rail 2, and one end of the fourth rod extends out of the base 1. Multiple fifth blocks 66 are fixedly connected to the surface of the fourth rod 65. Each fifth block 66 corresponds one-to-one with a third rod 62. Each fifth block 66 has an unlocking part 661 on its surface near the corresponding engagement part 622. The unlocking part 661 has an inclined guide surface. When the fourth rod 65 is in the initial position, each unlocking part 661 has a certain distance from the corresponding engagement part 622, and no force is applied to the engagement part 622 to disengage it from the limiting member 61. When the operator moves the fourth rod 65, the multiple fifth blocks 66 move synchronously, and each unlocking part 661 releases its own lock. Lock 661 enters between the corresponding engaging part 622 and the base 1. Its inclined guide surface pushes the engaging part 622 to move away from the limiting member 61, causing the third rod 62 to swing around the rotating part 621. Multiple engaging parts 622 simultaneously disengage from the tooth groove of the limiting member 61, thereby releasing the reset restriction of each second beam 32. A fourth elastic member 67 is connected between the end of the fourth rod 65 and the inner wall of the base 1. After the operator releases the pulling force, the fourth elastic member 67 drives the fourth rod 65 back to the initial position. The fifth block 66 and the unlocking part 661 exit between the engaging part 622 and the base 1. The third elastic member 64 pushes the third rod 62 back to the position engaged with the limiting member 61.
[0039] The following is the working principle of this embodiment: Preparation stage, combined with Figures 1 to 5 In the initial state, each second beam 32 is pushed by the corresponding second elastic element 53 and moves in the reset direction away from the first beam 31 until the first blocking part 511 at the end of each first rod 51 abuts against the inner wall of the corresponding first cavity 322. The first blocking part 511 restricts the second beam 32 from moving further, so that the first beam 31 and the adjacent second beam 32 and the two adjacent second beams 32 maintain a preset distance. Each pedestal 33 is thus in the initial position required for guardrail welding. The operator places the guardrail posts into the corresponding third groove 331 and rotates the plate 4. 1. The plate 41 covers the opening of the third groove 331, and the plate 41 is fastened to the second beam 32 by the first locking part 412. The plate 41 and the third groove 331 together restrict the guardrail post from leaving the platform 33. The guardrail crossbar is placed in the fourth groove 332, and its welding end is close to the side surface of the corresponding guardrail post. At this time, the second locking part 551 presses the first elastic member 42 against the guardrail crossbar, so that the first elastic member 42 is kept in a bent and stored state. The first elastic member 42 presses the guardrail crossbar tightly in the fourth groove 332, and the guardrail crossbar and the guardrail post are thus kept in the set welding position. During the welding shrinkage stage, combined Figures 3 to 8After the guardrail crossbar and guardrail post are welded together, the welded area shrinks during the cooling process. This shrinkage is transmitted through the guardrail crossbar and guardrail post to the corresponding pedestal 33. Since the first beam 31 is fixed on the base 1, the pedestal 33 installed on the second beam 32 is subjected to the shrinkage tension of the guardrail components, causing the second beam 32 to move towards the first beam 31. When the second beam 32 moves, the two first blocks 321 slide along the corresponding guide rails 2, keeping the second beam 32 moving along the length of the guide rails 2. At the same time, the second elastic element 53 between adjacent load-bearing parts is compressed. The second beam 32 relative to the first crossbar... When body 51 moves, the second rod 542, fixed to the second block 54, moves along the fifth groove 52. The second rod 542 initially lies within the straight section 521. Since the extension direction of the straight section 521 is consistent with the movement direction of the second beam 32, the second rod 542 will not be pushed while moving within the straight section 521. The second block 54 and the third block 56 maintain their original positions to absorb welding vibrations and small contraction displacements generated by the guardrail components, preventing premature action of the first elastic element 42 and the fourth block 57. As the second beam 32 continues to move towards the first beam 31, the second rod 542 moves from the straight section... 521 enters the inclined section 522. The inner wall of the inclined section 522 presses against the arc surface of the end of the second rod 542 and applies a thrust perpendicular to the length direction of the guide rail 2 to the second rod 542. The second rod 542 transmits this thrust to the second block 54, causing the second block 54 to slide along the extension direction of the first cavity 322. This converts the contraction displacement of the second beam 32 along the guide rail 2 into movement of the second block 54 within the first cavity 322. When the second block 54 begins to move, the second cavity 541 moves relative to the pin 561. Since the pin 561 and the second cavity 541 are used to push the pin 561... There is a gap between the end walls. The second block 54 will not push the pin 561 within this stroke. The third block 56, the shaft 55, the second locking part 551 and the fourth block 57 all remain in their original positions. After the second block 54 continues to move until the end wall of the second cavity 541 abuts against the pin 561, the thrust generated by the second block 54 is transmitted to the pin 561 through the end wall of the second cavity 541. The pin 561 drives the third block 56 to move synchronously along the first cavity 322. The straight section 521 and the second cavity 541 thus form two stages of idle stroke, so that the compensation component 5 outputs action after the guardrail component reaches the preset shrinkage amount. During the compression and release phase, combined with Figures 6 to 8When the third block 56 moves, the shaft 55 fixed on the third block 56 moves along the second groove 324. The shaft 55 drives the second locking part 551 to move synchronously. The overlap length between the second locking part 551 and the free end of the first elastic member 42 gradually decreases until the second locking part 551 completely leaves the first elastic member 42. After the first elastic member 42 loses the restriction of the second locking part 551, it recovers in the direction away from the fourth groove 332 by its own elastic force. The first elastic member 42 no longer applies pressure to the guardrail crossbar. As a result, the guardrail crossbar can make a small movement along the extension direction of the fourth groove 332 that is adapted to the welding shrinkage. During the compensation phase, combined with Figures 6 to 8 The third block 56 continues to move, and the inclined part 562 at the top of the third block 56 slides relative to the driven part 571 at the bottom of the fourth block 57. The inclined part 562 applies a pushing force toward the guardrail crossbar to the driven part 571. The driven part 571 pushes the fourth block 57 to move along the first groove 323, so that the fourth block 57 gradually comes into contact with the bottom of the guardrail crossbar. The lifting action of the fourth block 57 occurs after the first elastic member 42 is released from the clamping. Therefore, the fourth block 57 will not clamp the guardrail crossbar together with the first elastic member 42. The guardrail crossbar can release the weld contraction along the fourth groove 332. At the same time, the fourth block 57 provides support for the guardrail crossbar near the welded end. During the contraction position locking phase, combined with Figure 3 as well as Figures 9 to 11 When the second beam 32 moves toward the first beam 31, the third rod 62, hinged to the second beam 32, moves synchronously. After the engaging part 622 contacts the inclined surface of the teeth of the limiting member 61, the inclined surface pushes the engaging part 622, causing the third rod 62 to overcome the torque of the third elastic member 64 and swing away from the second blocking part 63. After the engaging part 622 passes the teeth of the limiting member 61, the third elastic member 64 pushes the third rod 62 back, causing the engaging part 622 to enter the adjacent tooth groove. The second beam 32 can thus gradually move along the contraction direction. After the guardrail component stops retracting as the teeth move, the compressed second elastic element 53 applies a reset thrust to the second beam 32. The meshing part 622 is blocked by the vertical surface of the limiting element 61, causing the third rod 62 to swing toward the second blocking part 63. After the third rod 62 abuts against the second blocking part 63, it cannot continue to swing, so that the meshing part 622 cannot pass the teeth of the limiting element 61. The second beam 32 is thus held in the position after the guardrail component has cooled and retracted, preventing the second elastic element 53 from pushing the second beam 32 to reset before the guardrail component has cooled sufficiently. During the finished product removal stage, combined with Figures 3 to 5After the guardrail components have cooled sufficiently, the operator releases the fastening between the first locking part 412 and the second beam 32, and rotates the plate 41 to expose the opening of the third groove 331. Then, the welded guardrail components are removed from the third groove 331 and the fourth groove 332. After the guardrail components are removed, the locking of the second beam 32 is released to prevent the second elastic element 53 from applying a reverse force to the cooled and shaped guardrail components when pushing the second beam 32 to reset. During the centralized unlocking phase, combined with Figure 3 as well as Figures 9 to 11 The operator drives the fourth rod 65, which drives multiple fifth blocks 66 to move synchronously. The unlocking part 661 on each fifth block 66 enters between the corresponding engaging part 622 and the base 1. The inclined guide surface of the unlocking part 661 pushes the engaging part 622 to move away from the limiting member 61, causing the third rod 62 to swing around the rotating part 621. At the same time, each engaging part 622 disengages from the tooth groove of the limiting member 61, thereby releasing the reset restriction of each second beam 32. During the load reset phase, combined with Figure 3 as well as Figures 5 to 11The operator keeps the fourth rod 65 in the pulled-out state, and each of the second elastic elements 53 pushes the corresponding second beam 32 to move away from the first beam 31. When the second beam 32 is reset, the second beam 32 and the first rod 51 fixed on the adjacent bearing part move in opposite directions. The second rod 542 moves along the inclined section 522 of the fifth groove towards the straight section 521. Since the part of the second rod 542 that extends into the fifth groove 52 is always located between the two groove walls opposite to each other in the inclined section 522, one side of the groove wall of the inclined section 522 abuts against the second rod 54. The arc surface of the second rod 542 is subjected to a force, which is then transmitted to the second block 54, causing the second block 54 to slide in the opposite direction along the first cavity 322. After the second rod 542 returns from the inclined section 522 to the straight section 521, the second block 54 returns to its initial position. In the initial stage of the movement of the second block 54, the second cavity 541 moves in the opposite direction relative to the pin 561. When one end wall of the second cavity 541 abuts against the pin 561, the end wall applies a force to the pin 561, causing the pin 561 to drive the third block 56 back to its initial position. When the third block 56 is reset, the fourth block 57 loses the support of the inclined part 562 and moves along the first groove 323 toward the first cavity 322 under its own gravity and completes the reset. The shaft 55 and the second locking part 551 return synchronously with the third block 56. The second locking part 551 moves back to the adjacent position of the free end of the first elastic member 42. Each second beam 32 continues to move along the reset direction until the first blocking part 511 abuts against the inner wall of the corresponding first cavity 322. Each bearing part restores the preset spacing. Then the operator presses the first elastic member 42... Pressed into a bent state, and with the free end of the first elastic member 42 placed at the bottom of the second locking part 551, the first elastic member 42 returns to its bent and stored state. After the second beam 32 completes its reset, the operator removes the pulling force on the fourth rod 65. The fourth elastic member 67 drives the fourth rod 65 back to its initial position. The fifth block 66 and the unlocking part 661 disengage from between the engaging part 622 and the base 1. The third elastic member 64 pushes the third rod 62 back, causing the engaging part 622 to re-enter the tooth groove of the limiting member 61. The device returns to the initial state required for the next guardrail welding operation.
[0040] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.
Claims
1. A safety railing anti-deformation auxiliary welding device, comprising a base (1), two guide rails (2) disposed on the top of the base (1), a bearing component (3) disposed on the guide rails (2), a positioning component (4) and a compensation component (5) disposed on the bearing component (3), and a locking component (6) disposed between the base (1) and the bearing component (3), characterized in that: The load-bearing component (3) includes a first beam (31) and a plurality of second beams (32); The positioning component (4) includes a first elastic element (42) disposed on the second beam (32); The compensation component (5) includes a second block (54) and a third block (56) slidably disposed within the second beam (32). The third block (56) and the second block (54) form an abutting fit. A fourth block (57) for supporting the guardrail crossbar is slidably disposed on the second beam (32). When the guardrail components cool and shrink, the second beam (32) moves toward the first beam (31), the second block (54) moves toward the end of the second beam (32), the second block (54) drives the third block (56) to move, so that the first elastic element (42) releases the pressure on the guardrail crossbar, and then the fourth block (57) pushes the guardrail crossbar.
2. The safety railing anti-deformation auxiliary welding device according to claim 1, characterized in that, The first beam (31) is fixed to the base (1). The bottom of the second beam (32) is provided with two first blocks (321) that are slidably engaged with the two guide rails (2). The second beam (32) is provided with a first cavity (322). The second beam (32) is provided with a first groove (323) and a second groove (324) that communicate with the first cavity (322).
3. The safety railing anti-deformation auxiliary welding device according to claim 1, characterized in that, Both the first beam (31) and the second beam (32) are provided with a platform (33). The platform (33) is provided with a third groove (331) for placing the guardrail post. The platform (33) is also provided with a fourth groove (332) for placing the guardrail crossbar. The third groove (331) and the fourth groove (332) are connected to each other.
4. The safety railing anti-deformation auxiliary welding device according to claim 1, characterized in that, The positioning component (4) also includes a plate (41), one end of which is rotatably connected to the second beam (32) through a connecting part (411), and the other end is provided with a first locking part (412) that engages with the second beam (32). One end of the first elastic member (42) is fixed to the second beam (32).
5. The safety railing anti-deformation auxiliary welding device according to claim 1, characterized in that, The compensation component (5) further includes a first rod (51), which is provided on both the first beam (31) and the second beam (32). The end of the first rod (51) away from the first beam (31) extends into the adjacent second beam (32). A first blocking part (511) is provided at one end of the first rod (51), and a second elastic element (53) is sleeved on the first rod (51).
6. The safety railing anti-deformation auxiliary welding device according to claim 5, characterized in that, The first rod (51) is provided with a closed fifth groove (52), the fifth groove (52) has a straight section (521) and an inclined section (522), and the second block (54) is provided with a second rod (542) extending into the fifth groove (52).
7. The safety railing anti-deformation auxiliary welding device according to claim 1, characterized in that, The second block (54) has a second cavity (541) inside, and the third block (56) has a pin (561) extending into the second cavity (541).
8. The safety railing anti-deformation auxiliary welding device according to claim 1, characterized in that, The third block (56) is provided with a shaft (55) that extends through the second beam (32). The shaft (55) is provided with a second locking part (551). The second locking part (551) is used to restrict the first elastic member (42) from returning to its original position. When the third block (56) moves, the second locking part (551) leaves the first elastic member (42), so that the first elastic member (42) releases its pressure on the guardrail crossbar.
9. The safety railing anti-deformation auxiliary welding device according to claim 1, characterized in that, The third block (56) is provided with an inclined part (562), and the fourth block (57) is provided with a driven part (571) that slides with the inclined part (562). After the first elastic member (42) releases the pressure on the guardrail crossbar, the inclined part (562) pushes the fourth block (57) closer to the guardrail crossbar through the driven part (571).
10. The safety railing anti-deformation auxiliary welding device according to claim 1, characterized in that, The locking assembly (6) includes a limiting member (61) disposed on the base (1), a third rod (62) rotatably disposed on the second beam (32) via a rotating part (621), the third rod (62) being provided with an engaging part (622) that cooperates with the limiting member (61), the second beam (32) being provided with a second blocking part (63), the rotating part (621) being provided with a third elastic member (64) for pushing the third rod (62) closer to the limiting member (61), a fourth rod (65) slidably disposed in the base (1), the fourth rod (65) being provided with a fifth block (66), the fifth block (66) being provided with an unlocking part (661) for pushing the engaging part (622) away from the limiting member (61), and a fourth elastic member (67) for pushing the fourth rod (65) to reset between the fourth rod (65) and the base (1).