Building cylindrical steel formwork assembling and welding tool

Abstract

The utility model discloses an assembling and welding tool for building cylindrical steel formworks, and relates to the field of welding tools for the cylindrical steel formworks, the assembling and welding tool for the building cylindrical steel formworks comprises a bottom supporting frame, a fixed cross arm is fixed in the middle of the top surface of the bottom supporting frame, and two sets of centering clamping assemblies are symmetrically fixed on the top surface of the fixed cross arm; according to the building cylindrical steel formwork installing and welding tool, three sets of clamping structures are sequentially arranged, so that three single cylindrical steel formworks can be clamped at the same time, after the three single cylindrical steel formworks are clamped, a first motor is driven to rotate, the two sets of clamping structures on the two sides get close to each other in the middle, and then the three single cylindrical steel formworks are clamped. Compared with the prior art, by means of the structural arrangement, the number of the single cylindrical steel formworks which are oppositely clamped at a time is increased, the number of repeated clamping times is reduced, and the assembling and welding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of welding fixtures for cylindrical steel formwork, and in particular to a welding fixture for assembling cylindrical steel formwork for buildings. Background Technology

[0002] In construction applications such as silos, chimneys, irregular columns, and decorative columns, cylindrical components need to be cast, which requires the use of cylindrical formwork. In order to ensure the tightness of the connection of a single cylindrical steel formwork section, welding is required to complete the docking of adjacent cylindrical formwork sections.

[0003] Traditional cylindrical steel formwork welding fixtures typically include a base plate, two opposing cylindrical alignment clamps symmetrically slidably connected to the base plate, and a moving assembly that drives the two cylindrical alignment clamps to move closer together. The two cylindrical alignment clamps hold the two individual cylindrical steel formworks to be connected, and then drive them closer together for welding. However, this structural arrangement can only complete the alignment of two individual cylindrical steel formworks at a time. When the length of the individual cylindrical steel formworks is small, but the number of individual cylindrical steel formworks required for the cast structure is large, the number of individual cylindrical steel formworks that can be clamped and welded at one time is limited. Therefore, repeated clamping is required, which increases the number of operation steps and reduces welding efficiency. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, the purpose of this utility model is to provide a welding fixture for building cylindrical steel formwork assembly, which solves the problem that existing cylindrical steel formwork assembly welding fixtures can only complete the docking and positioning of two individual cylindrical steel formwork units at a time.

[0005] To address the problems in the existing technology, the technical solution of this utility model is as follows:

[0006] A welding fixture for steel formwork of building cylindrical columns includes a bottom support frame. Lateral clamping pairs are slidably arranged on both sides of the top of the bottom support frame, and a central clamping pair is fixed in the middle. The working ends of the lateral clamping pairs and the central clamping pair are opposite each other to form a clamping area.

[0007] The bottom support frame is provided with an opening and closing drive mechanism. The two output ends of the opening and closing drive mechanism are respectively connected to the two side clamping pairs to drive them to synchronously move closer to or away from the central clamping pair.

[0008] A pair of rotatable alignment plates are symmetrically arranged on the bottom support frame. The two alignment plates are located on both sides of the central clamping pair. In the clamping area between the two lateral clamping pairs, a flipping component is provided on one side of the top surface of the bottom support frame to drive the alignment plates to flip synchronously.

[0009] Preferably, the central clamping pair consists of a fixed crossbeam fixed to the top surface of the bottom support frame and two sets of centering clamping components symmetrically fixed to the top surface of the fixed crossbeam; the lateral clamping pair consists of a sliding crossbeam slidably connected to the top surface of the bottom support frame and two sets of centering clamping components symmetrically fixed to the top surface of the sliding crossbeam.

[0010] Preferably, the centering clamping assembly includes a longitudinally arranged support plate fixed to the top surface of the fixed crossarm and the sliding crossarm. Both the upper and lower ends of the support plate are slidably connected to the sliding sleeves. A clamping plate is fixed to one side of the outer wall of the sliding sleeve. The clamping area is located between the two clamping plates. An eight-shaped groove is formed on the side of the clamping plate near the clamping area.

[0011] An electric push rod is fixed in the middle of the support plate. The extended end of the electric push rod is arranged opposite to the clamping area and is symmetrically hinged with two push bars. The ends of the two push bars away from the electric push rod are respectively hinged to the outer walls of the two sliding sleeves.

[0012] Preferably, the bottom of the sliding crossarm is symmetrically fixed with slide bars, and the top surface of the bottom support frame is fixed with a slide rail below the slide bars. Several slide bars are slidably installed on the outside of the slide rail. The slide rail and slide bars realize the sliding connection between the lateral clamping pair and the top surface of the bottom support frame, so that the lateral clamping pair can slide stably along the set straight line direction.

[0013] Preferably, the opening and closing drive mechanism includes a bidirectional screw rotatably connected to the center of the top surface of the bottom support frame via a bearing. The two ends of the bidirectional screw are symmetrically threaded with threaded sleeves. The two threaded sleeves are respectively fixed to the ends of two sliding crossarms. One end of the bidirectional screw is connected to the output end of a first motor via a coupling. The first motor is fixed to the top surface of the bottom support frame.

[0014] Preferably, upright plates are symmetrically fixed to the middle of one side of the top surface of the bottom support frame, and the upper ends of the two upright plates are rotatably connected to a rotating shaft through bearings. Connecting strips are symmetrically fixed to both ends of the rotating shaft. The ends of the two connecting strips opposite to the rotating shaft are respectively fixed to the outer walls of the two alignment plates, and the two connecting strips are located between the two alignment plates.

[0015] Preferably, the flipping assembly includes a second motor fixed to the top surface of the bottom support frame. The second motor is located directly below the rotating shaft. Synchronous pulleys are fixed to the output end of the second motor and the outer wall of the rotating shaft. A synchronous belt drives between the two synchronous pulleys.

[0016] Compared with the prior art, the advantages of this utility model are as follows:

[0017] 1. This utility model arranges three sets of clamping structures in sequence, which can simultaneously clamp three single cylindrical steel templates. After the three single cylindrical steel templates are clamped, the first motor is driven to rotate, so that the two sets of clamping structures on both sides are centered and close together, so that the single cylindrical steel templates on both sides are simultaneously pressed against the end of the single cylindrical steel template in the middle, and then welding is performed. Compared with the prior art, this structural arrangement increases the number of single cylindrical steel templates that can be clamped at one time, reduces the number of repeated clamping, and improves the efficiency of welding.

[0018] 2. By setting up an alignment plate, this utility model eliminates the need for workers to manually determine the position of the individual cylindrical steel templates on both sides when clamping them. They can simply place the ends of the templates against the alignment plate to achieve positioning. When clamping in the center, the alignment plate can be driven to flip, thus improving alignment accuracy and efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram showing the positional relationship between the alignment plate and the connecting strip of this utility model.

[0021] Figure 3 This is a schematic diagram showing the positional relationship between the bidirectional screw and the threaded sleeve of this utility model.

[0022] Figure 4 This is a schematic diagram showing the positional relationship between the support plate and the sliding sleeve of this utility model.

[0023] Reference numerals: 1. Bottom support frame; 2. Fixed crossbeam; 3. Sliding crossbeam; 4. Centering clamping assembly; 5. Sliding bar; 6. Sliding rail; 7. Support plate; 8. Sliding sleeve; 9. Clamping plate; 10. Electric push rod; 11. Push bar; 12. Bidirectional screw; 13. Threaded sleeve; 14. First motor; 15. Vertical plate; 16. Rotating shaft; 17. Connecting bar; 18. Alignment plate; 19. Second motor; 20. Synchronous pulley; 21. Synchronous belt; 100. Clamping area. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Please see Figures 1 to 4This embodiment provides a welding fixture for building cylindrical steel formwork assembly, including a bottom support frame 1, a fixed crossbeam 2 fixed in the middle of the top surface of the bottom support frame 1, and two sets of centering clamping components 4 symmetrically fixed on the top surface of the fixed crossbeam 2. The two sets of centering clamping components 4 on the fixed crossbeam 2 are used to clamp a single cylindrical steel formwork in the middle.

[0026] A sliding crossbar 3 is slidably connected to both sides of the top surface of the bottom support frame 1. Sliding strips 5 are symmetrically fixed at the bottom of the sliding crossbar 3. A slide rail 6 is fixed below the sliding strips 5 on the top surface of the bottom support frame 1. All four sliding strips 5 are slidably installed on the outside of the slide rail 6.

[0027] Two sets of centering clamping components 4 are symmetrically fixed on the top surface of the sliding crossbeam 3. The six sets of centering clamping components 4 are arranged side by side along the length of the bottom support frame 1, and the six sets of centering clamping components 4 are all facing each other. The clamping parts of the six sets of centering clamping components 4 face each other to form a clamping area 100. The two sets of centering clamping components 4 on the sliding crossbeam 3 are used to clamp a single cylindrical steel template on the side.

[0028] After the three single cylindrical steel templates are placed on the corresponding two sets of centering clamping components 4, the three single cylindrical steel templates are all located within the clamping area 100 and are arranged side by side.

[0029] The centering clamping assembly 4 includes a longitudinally arranged support plate 7 fixed to the top surface of the fixed crossarm 2 and the sliding crossarm 3. Both the upper and lower ends of the support plate 7 are slidably connected to the sliding sleeves 8. A clamping plate 9 is fixed to one side of the outer wall of the sliding sleeve 8. The clamping area 100 is located between the two clamping plates 9. A V-groove is formed on the side of the clamping plate 9 near the clamping area 100. An electric push rod 10 is fixed in the middle of the support plate 7. The extended end of the electric push rod 10 is arranged opposite to the clamping area 100 and symmetrically hinged with two push bars 11. The ends of the two push bars 11 away from the electric push rod 10 are respectively hinged to the outer walls of the two sliding sleeves 8.

[0030] When placing the three single cylindrical steel formworks, they are all placed in the V-groove on the clamping plate 9 below. After placement, the six electric push rods 10 extend at the same time, and pull the two sliding sleeves 8 on each support plate 7 to slide together in the center through the push bar 11, so that the clamping plate 9 moves closer together. The clamping plate 9 clamps the single cylindrical steel formwork, completing the clamping and positioning work. Since the six sets of centering clamping components 4 are all aligned, after clamping, the three single cylindrical steel formworks are still aligned and their axes coincide.

[0031] A bidirectional screw 12 is rotatably connected to the middle of the top surface of the bottom support frame 1 via a bearing. Threaded sleeves 13 are symmetrically threaded to both ends of the bidirectional screw 12. The two threaded sleeves 13 are respectively fixed to the ends of the two sliding crossarms 3. One end of the bidirectional screw 12 is connected to the output end of the first motor 14 via a coupling. The first motor 14 is fixed on the top surface of the bottom support frame 1.

[0032] During the process of the single cylindrical steel templates on both sides of the drive rod moving closer together in the center, the first motor 14 drives the double screw 12 to rotate, thereby causing the two threaded sleeves 13 to move closer together in the center, thereby causing the sliding crossarms 3 on both sides to move closer to the fixed crossarm 2 at the same time, so that the single cylindrical steel templates on both sides move closer together in the center until they abut against the end of the single cylindrical steel template in the middle.

[0033] A vertical plate 15 is symmetrically fixed to the middle of one side of the top surface of the bottom support frame 1. The upper ends of the two vertical plates 15 are rotatably connected to the shaft 16 through bearings. Connecting strips 17 are symmetrically fixed to both ends of the shaft 16. Two alignment plates 18 are fixed to the ends of the two connecting strips 17 away from the shaft 16, and the two connecting strips 17 are located between the two alignment plates 18. The two alignment plates 18 are located on both sides of the fixed crossarm 2 and in the clamping area 100 between the two sliding crossarms 3. A second motor 19 is fixed to the top surface of the bottom support frame 1. The second motor 19 is located directly below the shaft 16. Synchronous pulleys 20 are fixed to the output end of the second motor 19 and the outer wall of the shaft 16. A synchronous belt 21 is connected between the two synchronous pulleys 20.

[0034] The design of the alignment plate 18 allows the two individual cylindrical steel templates on both sides to be directly placed against the two alignment plates 18 during the pre-installation of the side templates. This enables the placement and pre-positioning of the side templates. First, the bottom support frame 1 must be placed horizontally, then clamped. After clamping, the second motor 19 is driven to rotate, which in turn drives the rotating shaft 16 to rotate via the synchronous pulley 20 and synchronous belt 21. This causes the alignment plate 18 to flip and leave the clamping area 100, subsequently clamping the individual cylindrical steel templates on both sides. It should be further noted that the centering clamps on the sliding crossbeams 3 on both sides... The holding component 4 needs to stably clamp the single cylindrical steel template. The centering clamping component 4 on the middle fixed crossbeam 2 does not need to tightly clamp the single cylindrical steel template in the middle position. It is sufficient to ensure that the vertical position of the single cylindrical steel template in the middle is constant, but it can slide left and right. Since there is no left and right position limitation on the single cylindrical steel template in the middle, but it is clamped relatively loosely and can slide left and right, after the single cylindrical steel templates on both sides are centered and close together, the single cylindrical steel template in the middle can naturally be abutted and centered. Finally, the three single cylindrical steel templates are simultaneously positioned end to end against each other, and then welding and assembly work can be carried out.

[0035] In summary, compared with traditional technology, the increased number of single cylindrical steel templates for welding in a single operation eliminates the need for frequent and repetitive clamping and assembly work, reducing the number of operation steps and greatly improving welding efficiency.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for steel formwork assembly of building cylindrical columns, comprising a bottom support frame (1), characterized in that: The bottom support frame (1) has lateral clamping pairs slidably arranged on both sides of the top, and a central clamping pair fixed in the middle. The working ends of the lateral clamping pairs and the central clamping pair are opposite to each other to form a clamping area (100). The bottom support frame (1) is provided with an opening and closing drive mechanism. The two output ends of the opening and closing drive mechanism are respectively connected to the two side clamping pairs to drive them to move synchronously closer to or away from the central clamping pair. A pair of rotatable alignment plates (18) are symmetrically arranged on the bottom support frame (1). The two alignment plates (18) are located on both sides of the central clamping pair and in the clamping area (100) between the two lateral clamping pairs. A flipping component that drives the alignment plates (18) to flip synchronously is provided on one side of the top surface of the bottom support frame (1).

2. The welding fixture for building cylindrical steel formwork according to claim 1, characterized in that, The central clamping pair consists of a fixed crossbeam (2) fixed to the top surface of the bottom support frame (1) and two sets of centering clamping components (4) symmetrically fixed to the top surface of the fixed crossbeam (2).

3. The welding fixture for building cylindrical steel formwork according to claim 1, characterized in that, The lateral clamping pair consists of a sliding crossarm (3) that is slidably connected to the top surface of the bottom support frame (1) and two sets of centering clamping components (4) that are symmetrically fixed on the top surface of the sliding crossarm (3).

4. The welding fixture for building cylindrical steel formwork according to claim 2 or 3, characterized in that, The centering clamping assembly (4) includes a longitudinally arranged support plate (7) fixed on the top surface of the fixed crossarm (2) and the sliding crossarm (3). Both the upper and lower ends of the support plate (7) are slidably connected to the sliding sleeve (8). A clamping plate (9) is fixed on one side of the outer wall of the sliding sleeve (8). The clamping area (100) is located between the two clamping plates (9). A figure-eight groove is formed on the side of the clamping plate (9) near the clamping area (100). An electric push rod (10) is fixed in the middle of the support plate (7). The extended end of the electric push rod (10) is set opposite to the clamping area (100) and is symmetrically hinged with two push bars (11). The ends of the two push bars (11) away from the electric push rod (10) are respectively hinged to the outer walls of the two sliding sleeves (8).

5. The welding fixture for building cylindrical steel formwork according to claim 3, characterized in that, The bottom of the sliding crossarm (3) is symmetrically fixed with slide bars (5), and the top surface of the bottom support frame (1) is fixed with a slide rail (6) below the slide bars (5). Several slide bars (5) are slidably installed on the outside of the slide rail (6).

6. The welding fixture for building cylindrical steel formwork according to claim 3, characterized in that, The opening and closing drive mechanism includes a bidirectional screw (12) rotatably connected to the middle of the top surface of the bottom support frame (1) via a bearing. Both ends of the bidirectional screw (12) are symmetrically threaded with threaded sleeves (13). The two threaded sleeves (13) are respectively fixed to the ends of the two sliding crossarms (3). One end of the bidirectional screw (12) is connected to the output end of the first motor (14) via a coupling. The first motor (14) is fixed on the top surface of the bottom support frame (1).

7. The welding fixture for building cylindrical steel formwork according to claim 1, characterized in that, The bottom support frame (1) has two upright plates (15) symmetrically fixed in the middle of one side of the top surface. The upper ends of the two upright plates (15) are rotatably connected to the shaft (16) through bearings. The two ends of the shaft (16) are symmetrically fixed with connecting strips (17). The ends of the two connecting strips (17) opposite to the shaft (16) are respectively fixed to the outer walls of the two alignment plates (18), and the two connecting strips (17) are located between the two alignment plates (18).

8. The welding fixture for building cylindrical steel formwork according to claim 7, characterized in that, The flipping assembly includes a second motor (19) fixed on the top surface of the bottom support frame (1). The second motor (19) is located directly below the rotating shaft (16). The output end of the second motor (19) and the outer wall of the rotating shaft (16) are both fixed with synchronous pulleys (20). A synchronous belt (21) is connected between the two synchronous pulleys (20).

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