A bending steel pipe forming die frame device

Abstract

The present application relates to a bending steel pipe forming mold frame device, which belongs to the technical field of scaffold forming devices. The device comprises a working platform, a driving member arranged on the working platform, a driving top plate connected to the output shaft of the driving member, and a positioning clamping mechanism arranged on one side of the driving top plate, wherein the positioning clamping mechanism comprises a clamping assembly for fixing a thin-diameter steel pipe and a positioning assembly for positioning the thin-diameter steel pipe during bending and forming. The present application has the effects of improving the utilization rate of steel pipes, high economic benefits, and convenient operation for construction personnel.

Description

Technical Field

[0001] The present application relates to the technical field of scaffolding forming devices, and in particular to a bent steel pipe forming die frame device. Background Art

[0002] With the rapid development of the national economy, various new building structures have sprung up, including curved concrete beams in curved buildings. Curved concrete beams often use disc-type steel pipe scaffolding, which includes vertical poles and longitudinal and transverse horizontal poles. The construction of the vertical poles and horizontal poles is regulated by national industry standards. The horizontal poles are straight thin-diameter steel pipes and meet the modulus of 300mm.

[0003] Reference Figure 1 The present invention is a plan view of a curved concrete beam formwork scaffolding. The method of setting the longitudinal and transverse horizontal bars commonly used in the curved formwork scaffolding is as follows: straight short steel pipes are used to form curved longitudinal horizontal bars according to the designed curvature. The longitudinal horizontal bars are arranged at each step along the longitudinal direction and are buckled with each vertical bar; the transverse horizontal bars are connected to the vertical bars using disc-locked horizontal bars according to the module of 300mm.

[0004] The above-mentioned traditional method of erecting formwork has the following disadvantages: first, there is a serious waste of horizontal rod materials, because the straight longitudinal horizontal rods are cut into segments of about 2m in length, and often thousands of them are required to assemble the arc-shaped formwork, and the reuse rate is low. Utility Model Content

[0005] In order to improve the reuse rate of thin-diameter steel pipes, the present application provides a bent steel pipe forming die frame device.

[0006] The present application provides a bent steel pipe forming die frame device adopts the following technical solution:

[0007] A bent steel pipe forming die frame device includes a working platform, a pushing drive member arranged on the working platform, a pushing top plate connected to the output shaft of the pushing drive member, and a positioning clamping mechanism arranged on one side of the pushing top plate. The positioning clamping mechanism includes a clamping component for fixing a thin-diameter steel pipe and a positioning component for positioning the thin-diameter steel pipe for bending and forming.

[0008] By adopting the above technical solution, when the above formwork device is used to bend the steel pipe, the thin-diameter steel pipe to be bent is first fixed on the working platform through the clamping assembly, and then the driving member is started so that the top plate pushes the thin-diameter steel pipe, and the thin-diameter steel pipe gradually bends under the action of the top plate. After the thin-diameter steel pipe is bent to a certain arc and abuts against the positioning assembly, the driving member is stopped, and the bending of the thin-diameter steel pipe is completed. The formwork device of the present application utilizes the whole steel pipe to be hot-bent into an arc, which has a better recycling rate and high economic benefits compared to the prior art of cutting into short steel pipes; the efficiency of bending and forming is high, which improves the construction efficiency of assembling arc concrete beams.

[0009] Optionally, the positioning assembly includes at least one intermediate baffle rod, and the intermediate baffle rods are spaced circumferentially to form an arc plane, and the arc plane is adapted to the formed thin-diameter steel pipe.

[0010] By adopting the above technical solution, the structural composition of the positioning component is disclosed. The positioning component is composed of multiple intermediate blocking rods. For the construction site, the structure is simple and the production is convenient. After the construction is completed, the blocking rods can be recycled, which has high economic benefits.

[0011] Optionally, the clamping assembly includes end stop rods fixed to both ends of the positioning assembly, the end stop rods include a first clamping rod and a second clamping rod, and a clamping groove for inserting the thin-diameter steel pipe is provided between the first clamping rod and the second clamping rod.

[0012] By adopting the above technical scheme, the structural composition of the clamping assembly is disclosed, and the two ends of the thin-diameter steel pipe are clamped and fixed by two sets of end stop rods. When performing bending operations, the two ends of the thin-diameter steel pipe are inserted into the clamping grooves accordingly. The above clamping assembly has a simple structure, is easy to operate, and has a good recycling rate.

[0013] Optionally, the first clamping rod is located in the arc plane formed by the middle blocking rod, and the side walls of the first clamping rod and the second clamping rod are tangent to the side walls of the thin-diameter steel pipe.

[0014] By adopting the above technical solution, the first clamping rod is set in the arc surrounded by the middle barrier rod, and the tangential clamping of the two clamping rods and the thin-diameter steel pipe makes the connection between the two ends of the bent steel pipe and the whole smoother. When the thin-diameter steel pipes of multiple arcs are assembled, the overall arc is smoother.

[0015] Optionally, the push top plate has an abutting arc surface on one side facing the positioning assembly, and the abutting arc surface has the same curvature radius as the arc surface formed by the middle blocking rod.

[0016] By adopting the above technical solution and setting the abutting arc surface, when pushing the thin-diameter steel pipe, the contact area between the pushing top plate and the thin-diameter steel pipe can be gradually increased, thereby improving the bending forming effect. Compared with the contact between the flat surface and the thin-diameter steel pipe, the probability of the thin-diameter steel pipe breaking can be reduced.

[0017] Optionally, the push top plate is provided with a reinforcing armpit plate on a side facing away from the positioning assembly.

[0018] By adopting the above technical solution and reinforcing the setting of the axil plates, the structural strength of the push top plate can be improved and the service life of the push top plate can be increased.

[0019] Optionally, the pushing driving member is a hydraulic jack, the piston of the pushing driving member is fixedly connected to the middle of the pushing top plate, and the reinforcing axil plates are arranged on both sides of the piston.

[0020] By adopting the above technical solution, a form of pushing the driving member is disclosed, and the hydraulic jack has high efficiency, convenient operation and good safety.

[0021] Optionally, the push top plate and the piston are both coaxially provided with screw holes, and countersunk screws for connecting the push top plate and the piston are arranged in the screw holes.

[0022] By adopting the above technical solution, a connection method between the push top plate and the push driving member is disclosed. When assembling the push top plate and the push driving member, screw holes are simultaneously opened on the push top plate and the push driving member, and the countersunk screws are passed through the push top plate and threadedly inserted into the piston. The disassembly and assembly method is simple and has good strength.

[0023] Optionally, a plurality of support rails for sliding of thin-diameter steel pipes are arranged at intervals on the top of the working platform, and the support rails are arranged along the pushing direction of the pushing top plate.

[0024] By adopting the above technical solution and setting the supporting slide rail, when the thin-diameter steel pipe is compressed and bent, one side of the thin-diameter steel pipe abuts against the top of the supporting slide rail for the thin-diameter steel pipe to slide, thereby supporting the thin-diameter steel pipe.

[0025] Optionally, a heating element for heating the steel pipe is also included.

[0026] By adopting the above technical solution, before the thin-diameter steel pipe is inserted into the clamping assembly, the thin-diameter steel pipe is evenly heated by the heating element, so that the thin-diameter steel pipe is heated to a certain temperature to form a better deformation ability, thereby improving the bending efficiency.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. This application includes a working platform, a driving member, a driving top plate, a positioning clamping mechanism and a heating member. The whole steel pipe is hot-bent into an arc shape without cutting it into short steel pipes. After use, the deformation can be restored through a straightening process to improve the utilization rate;

[0029] 2. The arc-shaped steel pipe formed by the formwork device of the present application avoids the generation of a broken line extension section during assembly, which is convenient for construction by on-site workers;

[0030] 3. The application makes the arc of the steel pipe after bending smoother through the corresponding arrangement of the first clamping rod and the middle blocking rod and the tangential abutment between the two clamping rods and the thin-diameter steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a plan view of the overall structure of an embodiment of the present application.

[0032] Figure 2 yes Figure 1 Schematic diagram of the cross section of AA.

[0033] Figure 3 It is a schematic diagram of the partial structure of the positioning and clamping mechanism of an embodiment of the present application.

[0034] Figure 4 It is a schematic diagram of the structure of the push top plate of an embodiment of the present application.

[0035] Explanation of the reference numerals in the accompanying drawings: 1. working platform; 11. concrete base layer; 12. platform surface layer; 2. pushing driving member; 21. piston; 22. jack anchor bolt; 3. pushing top plate; 31. abutting arc surface; 32. screw hole; 33. countersunk screw; 34. reinforcing axil plate; 4. positioning and clamping mechanism; 41. clamping assembly; 411. end stop rod; 4111. first clamping rod; 4112. second clamping rod; 412. clamping groove; 42. positioning assembly; 421. middle stop rod; 5. supporting slide rail; 51. first slide rail; 52. second slide rail; 53. third slide rail; 6. heating element; 7. thin-diameter steel pipe; 8. formed thin-diameter steel pipe. DETAILED DESCRIPTION

[0036] The following is combined with Figure 1-4 This application is described in further detail.

[0037] The embodiment of the present application discloses a bent steel pipe forming die frame device.

[0038] Reference Figure 1 A bending steel pipe forming die frame device includes a working platform 1, a driving member 2, a driving top plate 3, a positioning clamping mechanism 4 and a supporting slide rail 5. The driving member 2 is a hydraulic jack in the prior art. The thin-diameter steel pipe 7 used in this application is φ48×3.5 and 5 meters long.

[0039] Reference Figure 1 and Figure 2 The working platform 1 is arranged on a flat construction ground, and includes a concrete base layer 11 and a platform surface layer 12. The concrete base layer 11 is cast by concrete, and the jack anchor bolts 22 and the positioning clamping mechanism 4 for driving the drive member 2 are embedded before casting. The platform surface layer 12 is formed by smoothing the top surface of the concrete base layer 11 with cement mortar.

[0040] The positioning clamping mechanism 4 includes a clamping assembly 41 for fixing the thin-diameter steel pipe 7 and a positioning assembly 42 for bending and positioning the thin-diameter steel pipe 7. The positioning assembly 42 includes a plurality of intermediate blocking rods 421, and the plurality of intermediate blocking rods 421 form an arc curve according to design requirements, and the inner concave surface of the formed arc curve faces the driving member 2. The curvature radius of the arc curve is the same as that of the thin-diameter steel pipe 7 after bending.

[0041] The clamping assembly 41 includes end bars 411 located at both ends of the arc of the middle bar 421. The end bar 411 and the middle bar 421 are pre-buried in the end bar 411 and include a first clamping rod 4111 and a second clamping rod 4112. A clamping groove 412 for inserting the thin-diameter steel pipe 7 is provided between the first clamping rod 4111 and the second clamping rod 4112. The first clamping rod 4111 and the second clamping rod 4112 are both round steel pipes, so that after the thin-diameter steel pipe 7 is inserted into the clamping groove 412, the contact surface between the thin-diameter steel pipe 7 and the two clamps is tangent. At the same time, the first clamping rod 4111 is distributed on the arc curve where the plurality of middle bar 421 are located.

[0042] The push drive member 2 is located on the side of the clamping assembly 41 away from the positioning assembly 42, and the output piston 21 of the push drive member 2 is fixedly connected to the push top plate 3. The output shaft piston 21 of the push drive member 2 and the middle stop rod 421 correspond to the midpoint of the curve, and one of the plurality of middle stop rods 421 corresponds to the piston 21.

[0043] Combination Figure 3 and Figure 4 The push top plate 3 is formed by cutting a steel pipe having a larger size than the thin-diameter steel pipe 7 into a semicircular steel pipe. After being cut into the semicircular steel pipe, both sides of the push top plate 3 are heated simultaneously to bend the push top plate 3 into an arc shape. The concave abutting arc surface 31 of the push top plate 3 faces the positioning assembly 42, and the curvature radius of the abutting arc surface 31 is the same as that of the positioning assembly 42.

[0044] The push top plate 3 and the piston 21 are fixedly connected by countersunk screws 33. A screw hole 32 for threading the countersunk screw 33 is coaxially provided in the middle of the push top plate 3 and the middle of the end surface of the piston 21. When installing the push top plate 3, the countersunk screw 33 is threaded through the push top plate 3 and then threadedly matched with the screw hole 32 of the piston 21 to achieve the connection between the push top plate 3 and the piston 21.

[0045] The push top plate 3 is also equipped with two reinforcing axil plates 34 on the side facing away from the positioning assembly 42 to provide the structural strength of the push top plate 3. The cross section of the reinforcing axil plates 34 is triangular and is fixed to the push top plate 3 by welding. The distance between the two reinforcing axil plates 34 is the diameter of the end of the piston 21.

[0046] In order to improve the stability of the thin-diameter steel pipe 7 when it is compressed and bent, a plurality of support rails 5 are also arranged at intervals on the working platform 1. The support rails 5 are cut from channel steel, and the notches of the support rails 5 face the platform surface layer 12. The plurality of support rails 5 are arranged at intervals, and the length direction of the support rails 5 extends along the output direction of the piston 21 of the push drive 2. There is a gap between the bottom of the push top plate 3 and the top surface of the support rails 5. Among them, the plurality of support rails 5 include a first rail 51 corresponding to the piston 21, a second rail 52 located at the clamping assembly 41, and a third rail 53 located on one side of the intermediate stop rod 421. The second rail 52 is located between the two end stop rods 411, and the arc curvature radius formed by the ends of the second rail 52 and the third rail 53 is larger than the positioning assembly 42.

[0047] The present application also includes a heating element 6, which is used to uniformly and symmetrically heat the thin-diameter steel pipe 7, making it easier to plastically deform the steel pipe, so as to improve the driving efficiency of the driving element 2. In this embodiment, the heating element 6 is a handheld flamethrower, and before processing, the construction personnel use the handheld flamethrower to uniformly heat the thin-diameter steel pipe 7 for 3-5 minutes.

[0048] The implementation principle of a bent steel pipe forming mold frame device in an embodiment of the present application is: first use a hand-held flamethrower to uniformly heat the thin-diameter steel pipe 7, and insert the heated thin-diameter steel pipe 7 into the end stop rod 411 to achieve clamping and fixing; start the push drive 2, and the piston 21 drives the push top plate 3 toward the positioning component 42, and the push top plate 3 drives the thin-diameter steel pipe 7 to undergo plastic deformation during the movement, so that the thin-diameter steel pipe 7 gradually bends until the thin-diameter steel pipe 7 abuts against the middle stop rod 421; stop pushing, and take the formed thin-diameter steel pipe 8 out of the end stop rod 411.

[0049] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A bent steel pipe forming die frame device, characterized in that: The invention comprises a working platform (1), a driving member (2) arranged on the working platform (1), a driving top plate (3) connected to the output shaft of the driving member (2), and a positioning clamping mechanism (4) arranged on one side of the driving top plate (3), wherein the positioning clamping mechanism (4) comprises a clamping component (41) for fixing a thin-diameter steel pipe (7) and a positioning component (42) for positioning the thin-diameter steel pipe (7) during bending and forming.

2. A bent steel pipe forming die frame device according to claim 1, characterized in that: The positioning assembly (42) comprises a plurality of intermediate blocking rods (421), wherein the plurality of intermediate blocking rods (421) are spaced apart circumferentially to form an arc plane, wherein the arc plane is adapted to the formed thin-diameter steel pipe (7).

3. A bent steel pipe forming die frame device according to claim 2, characterized in that: The clamping assembly (41) comprises end stop rods (411) fixed to both ends of the positioning assembly (42); the end stop rods (411) comprise a first clamping rod (4111) and a second clamping rod (4112); a clamping groove (412) for inserting the thin-diameter steel pipe (7) is provided between the first clamping rod (4111) and the second clamping rod (4112).

4. A bent steel pipe forming die frame device according to claim 3, characterized in that: The first clamping rod (4111) is located in the arc plane formed by the intermediate blocking rod (421), and the side walls of the first clamping rod (4111) and the second clamping rod (4112) are both tangent to the side walls of the thin-diameter steel pipe (7).

5. A bent steel pipe forming die frame device according to claim 2, characterized in that: The push top plate (3) has an abutting arc surface (31) on one side facing the positioning assembly (42), and the abutting arc surface (31) has the same curvature radius as the arc surface enclosed by the middle blocking rod (421).

6. A bent steel pipe forming die frame device according to claim 1, characterized in that: The push top plate (3) is provided with a reinforcing armpit plate (34) on the side facing away from the positioning assembly (42).

7. A bent steel pipe forming die frame device according to claim 6, characterized in that: The push driving member (2) is a hydraulic jack, the piston (21) of the push driving member (2) is fixedly connected to the middle of the push top plate (3), and the reinforcing haunch plates (34) are arranged on both sides of the piston (21).

8. A bent steel pipe forming die frame device according to claim 7, characterized in that: The push top plate (3) and the piston (21) are both coaxially provided with screw holes (32), and countersunk screws (33) for connecting the push top plate (3) and the piston (21) are provided in the screw holes (32).

9. A bent steel pipe forming die frame device according to claim 1, characterized in that: A plurality of support slide rails (5) for sliding of thin-diameter steel pipes (7) are arranged at intervals on the top of the working platform (1); the support slide rails (5) are arranged along the pushing direction of the pushing top plate (3).

10. A bent steel pipe forming die frame device according to claim 1, characterized in that: It also includes a heating element (6) for heating the thin-diameter steel pipe (7).

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