A steel beam welding clamping and positioning device

Abstract

This utility model relates to the technical field of steel beam welding, specifically a steel beam welding clamping and positioning device. It includes a worktable and clamping components symmetrically arranged on the worktable. A connecting shaft, fixed to the clamping components, is rotatably mounted on the worktable. A limiting component is arranged along the axial direction of the connecting shaft, and four sets of elastic locking components are equidistantly arranged radially along the connecting shaft. It also includes a pushing component rotatably mounted on the worktable and coaxially arranged with the connecting shaft; and an intermittent driving component, mounted on the worktable and connected to the connecting shaft and the pushing component. This utility model achieves locking and unlocking of the clamping components by repeatedly compressing and releasing the elastic locking components. During the release process, the steel beam automatically rotates 90° and quickly fixes its position, ensuring that the welding mechanism maintains a 90° angle with the steel beam at the welding point during the welding process, thus avoiding incomplete welding.

Description

Technical Field

[0001] This utility model relates to the technical field of steel beam welding, specifically a steel beam welding clamping and positioning device. Background Technology

[0002] Steel beam welding is a critical step in steel structure engineering, and its quality directly affects the stability and safety of the entire structure. When welding two steel beams, clamping and positioning are key steps to ensure welding accuracy and quality. Through clamping and positioning mechanisms, the steel beams are fixed in the welding position to ensure that they do not shift or deform during the welding process.

[0003] In existing steel beam welding, spot welding is performed using a welding torch. The torch moves horizontally from one end of the upper contact edge of the two steel beams to the other to connect the weld seams. To completely fix the two steel beams, multi-sided welding is required. In traditional technology, the welding torch is held manually, and the welding posture is changed according to the different weld seam positions. This operation is cumbersome and cannot ensure that the welding angle is fixed. Therefore, existing technology ensures the stability of the welding angle by rotating the steel beam. When welding square steel beams, two grippers drive the steel beam to rotate synchronously. However, accurately controlling the steel beam to rotate 90° each time requires automated equipment to drive and position it. The high cost and complex system structure limit its widespread application in actual production. Utility Model Content

[0004] The purpose of this invention is to provide a steel beam welding clamping and positioning device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A steel beam welding clamping and positioning device includes a worktable and clamping members symmetrically arranged on the worktable. A connecting shaft fixed to the clamping members is rotatably arranged on the worktable. A limiting member is arranged along the axial direction of the connecting shaft. Four sets of elastic locking members that can be inserted into the limiting member to limit the rotation of the connecting shaft are arranged at equal intervals along the radial direction of the connecting shaft.

[0007] It also includes a push assembly that is rotatably mounted on the worktable and coaxially mounted with the connecting shaft, the push assembly being connected to the elastic locking member and capable of changing the compression deformation of the elastic locking member;

[0008] An intermittent drive component is disposed on the worktable and is connected to the connecting shaft and the pushing component, respectively.

[0009] The steel beam welding clamping and positioning device described above: the limiting member includes a limiting ring fixedly sleeved on the connecting shaft, and four sets of grooves are equidistantly arranged along the circumference of the limiting ring.

[0010] The steel beam welding clamping and positioning device described above: a support ring is fixedly arranged on the worktable along the axial direction of the connecting shaft, and the elastic locking member is arranged equidistantly along the radial direction of the support ring and fixed to the support ring.

[0011] As described above, the steel beam welding clamping and positioning device includes an elastic locking member fixedly installed on the support ring. An inner groove is formed inside the inner groove, and a slider is slidably arranged inside the inner groove. An inner rod is slidably arranged inside the inner groove at one end away from the support ring. A locking tooth is provided on one end of the inner rod that extends out of the inner groove and can be inserted into the groove.

[0012] It also includes a spring disposed in the recessed groove, one end of the spring abutting against the slider and the other end abutting against the plug rod.

[0013] The steel beam welding clamping and positioning device described above: the pushing component includes a threaded rod rotatably mounted on the worktable and coaxially arranged with the connecting shaft, a threaded sleeve threadedly connected to the threaded rod, four sets of connecting rods hinged to the threaded sleeve, and the end of the connecting rod away from the threaded sleeve being hinged to the slider.

[0014] As described above, the steel beam welding clamping and positioning device includes an intermittent drive component that is rotatably mounted on the worktable, and a connecting sleeve is threaded onto the intermittent drive.

[0015] It also includes a first drive shaft and a second drive shaft rotatably mounted on the workbench. The first drive shaft is connected to the connecting shaft via a first toothed belt, and the second drive shaft is connected to the threaded rod via a second toothed belt. The two ends of the connecting sleeve are respectively sleeved on the first drive shaft and the second drive shaft and are slidably connected to the first drive shaft and the second drive shaft.

[0016] The steel beam welding clamping and positioning device described above: a first ball and a second ball are movably arranged on the connecting sleeve plate, a first limiting groove adapted to slide with the first ball is formed on the first transmission shaft, and a second limiting groove adapted to slide with the second ball is formed on the second transmission shaft.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] Under the control of the intermittent drive component, the elastic locking component can be compressed and released multiple times. During the release process, the steel beam can be automatically rotated 90° and its position can be quickly fixed, realizing the locking and unlocking of the clamping component. This ensures that the welding mechanism can always maintain a 90-degree angle with the steel beam during the welding process, avoiding empty welds and effectively preventing deformation or misalignment caused by unstable clamping during the welding process, thereby improving welding accuracy. Moreover, it does not require the use of high-end automated welding instruments, making it highly practical. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the steel beam welding clamping and positioning device.

[0020] Figure 2 This is a schematic diagram of the intermittent drive component in a steel beam welding clamping and positioning device.

[0021] Figure 3 This is a schematic diagram of the connecting sleeve plate and the first and second drive shafts in the steel beam welding clamping and positioning device.

[0022] Figure 4 This is a schematic diagram of the clamping components and connecting shaft in a steel beam welding clamping and positioning device.

[0023] Figure 5 This is a schematic diagram of the connecting shaft and the pushing component in the steel beam welding clamping and positioning device.

[0024] Figure 6 This is a schematic diagram of the elastic locking component in a steel beam welding clamping and positioning device.

[0025] Figure 7 This is a cross-sectional schematic diagram of the elastic locking component in the steel beam welding clamping and positioning device.

[0026] In the diagram: 1. Workbench; 2. Welding mechanism; 3. Two-way lead screw; 4. First drive shaft; 401. First limiting groove; 5. Second drive shaft; 501. Second limiting groove; 6. Connecting sleeve; 601. First ball bearing; 602. Second ball bearing; 7. Clamping component; 8. Connecting shaft; 9. Threaded rod; 10. First toothed belt; 11. Second toothed belt; 12. Threaded sleeve; 13. Connecting rod; 14. Limiting ring; 1401. Groove; 15. Insert sleeve; 16. Insert rod; 1601. Clamping tooth; 17. Slider; 18. Spring; 19. Support ring. Detailed Implementation

[0027] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0028] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0029] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented even without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0030] Please see Figures 1-7 In this embodiment of the utility model, a steel beam welding clamping and positioning device includes a workbench 1 and clamping members 7 symmetrically arranged on the workbench 1. A connecting shaft 8 fixed to the clamping members 7 is rotatably arranged on the workbench 1. A limiting member is arranged along the axial direction of the connecting shaft 8. Four sets of elastic locking members that can be inserted into the limiting member to limit the rotation of the connecting shaft 8 are arranged at equal intervals along the radial direction of the connecting shaft 8.

[0031] It also includes a push assembly that is rotatably mounted on the worktable 1 and coaxially mounted with the connecting shaft 8, the push assembly being connected to the elastic locking member and capable of changing the compression deformation of the elastic locking member;

[0032] An intermittent drive component is disposed on the worktable 1 and is connected to the connecting shaft 8 and the pushing component, respectively.

[0033] It should be noted that a welding mechanism 2 is fixedly installed on the workbench 1, and the welding mechanism 2 can move relative to the workbench 1 to ensure that the welding mechanism 2 can be aligned with the joint of the two steel beams during welding. After the two steel beams are clamped and fixed, the welding mechanism 2 can move from one end of the upper contact edge of the two steel beams to the other end to achieve the connection of the weld. The specific welding mechanism 2 adopts existing technology, and this utility model will not elaborate further.

[0034] In this embodiment, after the two sets of steel beams are clamped and aligned by the two clamping members 7, the welding mechanism 2 welds one side of the two steel beams. After welding, under the drive of the gap drive member, the push component and the connecting shaft 8 are respectively acted, so that the push component and the connecting shaft 8 can work intermittently. After the push component releases the compressive potential energy of the elastic locking member, the connecting shaft 8 rotates under the transmission of the intermittent drive member. When the limiting member on it rotates, it can squeeze the elastic locking member to temporarily release the locking of the elastic locking member. After rotating to 90°, the elastic locking member is inserted into the limiting member again. At the same time, the compressive potential energy on the elastic locking member pushed by the push component is restored to full compression. Thus, the two clamping members 7 can accurately control the rotation angle. At the same time, the compression and release of the elastic locking member realizes the locking and unlocking of the clamping members 7. This effectively improves the welding stability of the steel beam and ensures that the welding mechanism 2 can always maintain a 90-degree angle with the steel beam during the welding process, avoiding the occurrence of empty welds.

[0035] For further solutions to this utility model, please refer to [link / reference]. Figure 5 The limiting component includes a limiting ring 14 fixedly sleeved on the connecting shaft 8, and four sets of grooves 1401 are equidistantly arranged along the circumference of the limiting ring 14.

[0036] Preferably, the groove 1401 is arranged in a near-isosceles triangular structure.

[0037] A support ring 19 is fixedly provided on the workbench 1 along the axial direction of the connecting shaft 8, and the elastic locking member is provided at equal intervals along the radial direction of the support ring 19 and fixed to the support ring 19.

[0038] The elastic locking member includes a plug-in tube 15 fixedly installed on the support ring 19. An inner groove is formed in the plug-in tube 15. A slider 17 is slidably disposed in the inner groove. A plug-in rod 16 is slidably disposed in the end of the inner groove away from the support ring 19. A locking tooth 1601 is provided on the end of the plug-in rod 16 that extends out of the inner groove and can be inserted into the groove 1401.

[0039] It also includes a spring 18 disposed in the recessed groove, one end of the spring 18 abutting against the slider 17 and the other end abutting against the plug rod 16.

[0040] The pushing component includes a threaded rod 9 rotatably mounted on the worktable 1 and coaxially arranged with the connecting shaft 8. A threaded sleeve 12 is threadedly connected to the threaded rod 9. Four sets of connecting rods 13 are hinged to the threaded sleeve 12. The end of the connecting rod 13 away from the threaded sleeve 12 is hinged to the slider 17.

[0041] Preferably, the locking tooth 1601 is arranged in an isosceles triangular structure, and when the locking tooth 1601 is inserted into the groove 1401, the inclined surface of the groove 1401 abuts against the inclined surface of the locking tooth 1601.

[0042] Specifically, when the threaded rod 9 rotates under the drive of the intermittent drive, it causes the threaded sleeve 12 to move linearly along the axial direction of the threaded rod 9. At this time, multiple connecting rods 13 simultaneously compress multiple sliders 17, causing the sliders 17 to move away from the plug rod 16 within the insertion cylinder 15. This causes the compression of the spring 18 to change from full compression to gradual reduction. At this time, the elastic compressive force of the spring 18 on the insertion rod 16 decreases. Under the action of the intermittent drive, when the connecting shaft 8 rotates, the inclined surface on the groove 1401 compresses the inclined surface on the retaining tooth 1601. When the retaining tooth 1601 is subjected to an inclined force, the insertion rod 16 can compress the spring 18 and move it inward toward the insertion cylinder 15. When the spring 18 is compressed again, it continues until the inclined surface of the groove 1401 moves away from the inclined surface of the tooth 1601. Then, the adjacent groove 1401 on the limiting ring 14 rotates to align with the tooth 1601, and the tooth 1601 is reinserted into the groove 1401 under the action of the spring 18. At this point, the connecting shaft 8 drives the clamping member 7 to rotate 90°. The threaded rod 9 rotates again in the opposite direction to the initial rotation, ensuring that the slider 17 can reset and fully compress the spring 18. The compression and release mechanism of the spring 18 enables automatic locking and unlocking of the clamping member 7, thus controlling the steel beam to quickly fix its position after rotating 90°, preventing displacement due to vibration or external force. Simultaneously, this automatic locking function effectively avoids deformation or misalignment caused by unstable clamping during welding, thereby improving welding accuracy.

[0043] For further solutions to this utility model, please refer to [link / reference]. Figure 2 and Figure 3 The intermittent drive component includes a bidirectional lead screw 3 rotatably mounted on the worktable 1, and a connecting sleeve 6 is threaded onto the bidirectional lead screw 3;

[0044] It also includes a first drive shaft 4 and a second drive shaft 5 rotatably mounted on the workbench 1. The first drive shaft 4 is connected to the connecting shaft 8 via a first toothed belt 10, and the second drive shaft 5 is connected to the threaded rod 9 via a second toothed belt 11. The two ends of the connecting sleeve 6 are respectively sleeved on the first drive shaft 4 and the second drive shaft 5 and are slidably connected to the first drive shaft 4 and the second drive shaft 5.

[0045] The connecting sleeve 6 is movably provided with a first ball bearing 601 and a second ball bearing 602, the first drive shaft 4 is formed with a first limiting groove 401 that is slidably adapted to the first ball bearing 601, and the second drive shaft 5 is formed with a second limiting groove 501 that is slidably adapted to the second ball bearing 602.

[0046] The workbench 1 is equipped with a drive unit, which is a motor. The output shaft of the motor is fixed to the bidirectional lead screw 3. The specific control method of the motor is existing technology and is not shown in the figure. This utility model will not elaborate further.

[0047] It should be noted that the first limiting groove 401 is divided into multiple continuous grooves, and each groove is divided into A straight groove, B threaded groove, C straight groove and D straight groove, while the second limiting groove 501 is divided into multiple continuous grooves, and each groove is divided into a threaded groove, b straight groove, c threaded groove and d straight groove.

[0048] Initially, the first ball 601 is located in the straight groove A, and the second ball 602 is located in the threaded groove a. When the control beam rotates, it drives the double-acting screw 3 to rotate, causing the connecting sleeve 6 to move linearly along the axial direction of the double-acting screw 3. At this time, the second ball 602 exerts an inclined force on the threaded groove a, causing the second transmission shaft 5 to rotate. Under the transmission of the second toothed belt 11, this achieves the rotation requirement of the threaded rod 9. This continues until the first ball 601 moves into the threaded groove B, and the second ball 602 moves into the straight groove b. At this time, the first ball 601 exerts an inclined compression on the threaded groove B, causing the first transmission shaft 4 to rotate while the second transmission shaft 5 stops rotating. Under the transmission of the first toothed belt 10, this achieves the rotation requirement of the connecting shaft 8. Subsequently... The first ball bearing 601 moves into the C straight groove, and the second ball bearing 602 moves into the c threaded groove. The thread directions of the a threaded groove and the c threaded groove are opposite, so that the threaded rod 9 can rotate again in the opposite direction to the initial rotation, thereby ensuring that the spring 18 can be fully compressed again. When the connecting sleeve 6 continues to move, the first ball bearing 601 moves into the D straight groove, and the second ball bearing 602 moves into the d straight groove. The lengths of the D straight groove and the d straight groove are the same, giving the welding mechanism 2 enough time to weld the steel beam joint. The continuous operation of the connecting sleeve 6 can realize the automatic locking and unlocking of the clamping part 7, and can control the steel beam to quickly fix its position after rotating 90° once. After three rotations, the clamping part 7 completes the welding work of the two steel beams.

[0049] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0050] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A steel beam welding clamping and positioning device, comprising a worktable (1) and clamping members symmetrically arranged on the worktable (1), characterized in that, The worktable (1) is rotatably provided with a connecting shaft (8) fixed to the clamping member. The connecting shaft (8) is provided with a limiting member along the axial direction. Four sets of elastic locking members that can be inserted into the limiting member to limit the rotation of the connecting shaft (8) are provided at equal intervals along the radial direction of the connecting shaft (8). It also includes a push assembly that is rotatably mounted on the worktable (1) and coaxially mounted with the connecting shaft (8), the push assembly being connected to the elastic locking member and capable of changing the compression deformation of the elastic locking member; An intermittent drive is provided on the worktable (1) and is connected to the connecting shaft (8) and the pushing component respectively.

2. The steel beam welding clamping and positioning device according to claim 1, characterized in that, The limiting component includes a limiting ring (14) fixedly sleeved on the connecting shaft (8), and four sets of grooves (1401) are equidistantly arranged along the circumference of the limiting ring (14).

3. The steel beam welding clamping and positioning device according to claim 2, characterized in that, A support ring (19) is fixedly provided on the worktable (1) along the axial direction of the connecting shaft (8), and the elastic locking member is provided at equal distances along the radial direction of the support ring (19) and fixed to the support ring (19).

4. The steel beam welding clamping and positioning device according to claim 3, characterized in that, The elastic locking member includes a plug tube (15) fixedly installed on the support ring (19). An inner groove is formed in the plug tube (15). A slider (17) is slidably arranged in the inner groove. A plug rod (16) is slidably arranged in the inner groove at one end away from the support ring (19). A locking tooth (1601) is provided on one end of the plug rod (16) that extends out of the inner groove and can be inserted into the groove (1401). It also includes a spring (18) disposed in the recessed groove, one end of the spring (18) abutting against the slider (17) and the other end abutting against the plug rod (16).

5. The steel beam welding clamping and positioning device according to claim 4, characterized in that, The pushing component includes a threaded rod (9) rotatably mounted on the worktable (1) and coaxially arranged with the connecting shaft (8). A threaded sleeve (12) is threadedly connected to the threaded rod (9). Four sets of connecting rods (13) are hinged to the threaded sleeve (12). The end of the connecting rod (13) away from the threaded sleeve (12) is hinged to the slider (17).

6. The steel beam welding clamping and positioning device according to claim 5, characterized in that, The intermittent drive component includes a bidirectional lead screw (3) rotatably mounted on the worktable (1), and a connecting sleeve (6) is threaded onto the bidirectional lead screw (3). It also includes a first drive shaft (4) and a second drive shaft (5) rotatably mounted on the worktable (1). The first drive shaft (4) is connected to the connecting shaft (8) via a first toothed belt (10), and the second drive shaft (5) is connected to the threaded rod (9) via a second toothed belt (11). The two ends of the connecting sleeve (6) are respectively sleeved on the first drive shaft (4) and the second drive shaft (5) and are slidably connected to the first drive shaft (4) and the second drive shaft (5).

7. A steel beam welding clamping and positioning device according to claim 6, characterized in that, The connecting sleeve (6) is movably provided with a first ball (601) and a second ball (602). The first drive shaft (4) is formed with a first limiting groove (401) that is slidably adapted to the first ball (601). The second drive shaft (5) is formed with a second limiting groove (501) that is slidably adapted to the second ball (602).

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