Efficient small box girder steel bar jig frame manufacturing platform

Abstract

The invention provides an efficient small box girder steel bar jig frame manufacturing platform, and relates to the technical field of constructional engineering equipment, the efficient small box girder steel bar jig frame manufacturing platform comprises a jig frame base, a distance adjusting lead screw is mounted at the bottom of the jig frame base, two lower horizontal main frames are mounted above the jig frame base, and main frame rotating shafts are fixedly connected to the two ends of each lower horizontal main frame; the practicability and the use flexibility of the jig frame platform are improved, reinforcing steel bars can be rapidly and accurately installed and prestressed pipelines can be rapidly and accurately positioned through the jig frame, construction is easy and convenient, the percent of pass of protective layers is increased, the reinforcing steel bar binding efficiency is improved, worker operation is faster, and the labor cost is reduced. The problems that a traditional steel bar jig frame manufacturing platform is single in size, the position and the structure of a steel bar swing frame are fixed, the placing density of steel bars cannot be adjusted, meanwhile, the width is not easy to adjust, the same jig frame platform cannot be suitable for manufacturing small box girders with different widths, flexible adjustment cannot be conducted according to use scenes and engineering types, and the manufacturing cost is low are solved. And the use flexibility is insufficient.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering equipment, and in particular to a high-efficiency small box beam steel bar frame manufacturing platform. Background Art

[0002] The steel cradle is a fixed bracket made of steel sections, which is used to accurately position and efficiently tie the steel skeleton to ensure construction quality and efficiency. It is used for the production of steel skeletons for large-scale prefabricated small box girders and T-beams. The steel cradle of small box girders solves the problems of inaccurate steel positioning and low efficiency in traditional construction through standardized design and mechanized lifting. It is an important innovation in bridge prefabrication technology, especially suitable for engineering projects with tight schedules and high quality requirements.

[0003] The traditional steel frame production platform has a single size, the steel frame position and structure are fixed, the placement density of the steel bars cannot be adjusted, and the width is not easy to adjust. The same frame platform cannot be used for the preparation of small box girders of various widths, and cannot be flexibly adjusted according to the usage scenario and project type, and lacks flexibility in use. Summary of the invention

[0004] The disclosed embodiments relate to an efficient small box girder steel bar cradle manufacturing platform to solve the problems of traditional steel bar cradle manufacturing platforms having a single size, fixed steel bar frame position and structure, inability to adjust the placement density of the steel bars, and difficulty in adjusting the width. The same cradle platform cannot be used for the preparation of small box girders of various widths, and cannot be flexibly adjusted according to the usage scenario and project type, resulting in insufficient flexibility in use.

[0005] The first aspect of the present disclosure provides an efficient small box girder steel bar tire frame manufacturing platform, which specifically includes: a tire frame base, a spacing adjustment screw is installed at the bottom of the tire frame base, two lower horizontal main frames are installed above the tire frame base, the two ends of the lower horizontal main frames are fixedly connected with the main frame rotation shaft, the front edge and the rear edge of the tire frame base are respectively fixedly connected with two lower main frame connecting plates, the lower main frame connecting plate is provided with a connecting plate through groove, the connecting plate through groove is slidably connected with the main frame rotation shaft, and the cross-section of the lower horizontal main frame is a "cross" structure, and the outer edge of the lower horizontal main frame is opened. A lower positioning notch is provided, and a vertical fixed oblique frame is movably connected to the left and right sides above the tire frame base, and a lateral adjustment frame is fixedly connected outside the vertical fixed oblique frame, and the lateral adjustment frame is movably connected above the tire frame base, and an upper horizontal main frame is installed above the vertical fixed oblique frame, and an upper main frame slot plate is installed above the upper horizontal main frame by bolts, and an upper positioning notch is provided on the outer edge of the upper main frame slot plate, and an adjustable hanging plate is installed on the inclined surface of the vertical fixed oblique frame facing the center direction of the tire frame base, and horizontal supporting steel bars are welded to the adjustable hanging plate.

[0006] In at least some embodiments, an inner guide roller is installed below the vertical fixed oblique frame, a base guide opening is opened on the upper surface of the tire frame base, the inner guide roller is rollingly connected to the base guide opening, and an outer guide roller is installed below the lateral adjustment frame, and the outer guide roller is rollingly connected to the base guide opening.

[0007] In at least some embodiments, a base support frame is fixedly connected to the bottom of the tire frame base, a support frame connecting rod is welded to the top of the base support frame, and a spacing adjustment screw is rotatably connected to the top of the support frame connecting rod through a bearing frame.

[0008] In at least some embodiments, a lower main frame socket is provided above the tire frame base rod body, and the lower main frame socket is tightly plugged into a branch plate of the lower horizontal main frame.

[0009] In at least some embodiments, the vertical fixed diagonal frame is an "L"-shaped frame body, and four diagonal frame sockets are opened through the vertical fixed diagonal frame. Four limit pin plates are fixedly connected to the outer surface of the vertical fixed diagonal frame, and the limit pin plates and the diagonal frame sockets are located at the same height.

[0010] In at least some embodiments, a vertical fixed straight frame is fixedly connected to the upper part of the lateral adjustment frame, the vertical fixed straight frame is welded to the vertical fixed oblique frame, a spiral push block is welded to the middle of the lower surface of the lateral adjustment frame, and the spiral push block is spirally connected to the spacing adjustment screw.

[0011] In at least some embodiments, two hanging plate plugs are welded on the outer surface of the adjustable hanging plate, and a plug hole is opened through the hanging plate plug. The hanging plate plug passes through the plug-in diagonal frame socket, and a pin is installed in the limit pin plate, and the limit pin plate and the hanging plate plug are fixed by the pin.

[0012] In at least some embodiments, the outer edges of the four support plates of the lower horizontal main frame are respectively provided with lower positioning notches, the arrangement density of the four groups of lower positioning notches is different, and the lower positioning notches are "V"-shaped notches.

[0013] The present invention provides a highly efficient small box beam steel bar frame manufacturing platform, which has the following beneficial effects:

[0014] In the special tire frame platform for tying steel bars for preparing small box girders in the present invention, two sets of lateral adjustment frames on both sides of the tire frame platform and the upper main frame slot plate are movably connected above the tire frame base, and the spiral transmission between the spacing adjustment screw and the spiral push block controls the approach and separation of the lateral adjustment frames on both sides and the upper main frame slot plate, thereby effectively adjusting the placement spacing of the steel bars on both sides of the small box girder, so that the same special tire frame platform for tying steel bars can place and position the steel bars for small box girders with different size requirements, thereby improving the practicality and flexibility of use of the tire frame platform, and utilizing the tire frame to quickly and accurately install steel bars and position prestressed pipes, with simple construction, improved protective layer qualification rate, improved steel bar tying efficiency, faster operation for workers, and reduced labor costs; steel bar tying and template installation do not interfere with each other, thereby shortening the construction period of prefabricated beams.

[0015] In addition, with regard to the placement and positioning of the side steel bars, the horizontally placed steel bars are supported by horizontal supporting steel bars so that the steel bars are evenly installed on both sides of the tire frame platform. At the same time, the adjustable hanging plates can be removed from the inner surface of the lateral adjustment frame, and different types of adjustable hanging plates can be replaced to adjust the spacing of the horizontal supporting steel bars, thereby adjusting the distribution density of the steel bars on the side of the small box girder. This allows the small box girder to reasonably adjust the distribution density of the side steel bars according to the application scenarios and load-bearing requirements, which is beneficial to saving production costs and shortening construction period.

[0016] In addition, a lower horizontal main frame is provided at the bottom of the tire frame platform. The lower horizontal main frame is used to place and limit the distribution spacing and density of the bottom steel bars. Under normal circumstances, the branch plate located at the bottom of the lower horizontal main frame is inserted into the socket of the lower main frame to maintain the angle of the lower horizontal main frame. The steel bars are placed and limited by the lower positioning grooves on the upper edge of the branch plate, so that the steel bars are arranged at a fixed spacing at the bottom of the tire frame platform, which is convenient for operators to bundle the steel bars. The distribution spacing of the lower positioning grooves on the outer edges of the four branch plates of the lower horizontal main frame is inconsistent. The different branch plates can be adjusted upward by rotating the lower horizontal main frame, so that the steel bars are arranged according to different distribution densities, thereby adjusting the distribution density of the steel bars at the bottom of the small box girder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings of the embodiment are briefly introduced below.

[0018] The drawings described below are only related to some embodiments of the present invention, but are not intended to limit the present invention.

[0019] In the attached picture:

[0020] Figure 1 A schematic diagram showing the overall structure of the present application;

[0021] Figure 2 Shows this application Figure 2 A front view structural diagram of

[0022] Figure 3 A schematic diagram of the structure of the lateral adjustment frame of the present application is shown;

[0023] Figure 4 It shows a schematic diagram of the structure when the vertical fixed oblique frame of the present application is separated from the upper main frame slot plate;

[0024] Figure 5 The structural schematic diagram of the spiral push block of the present application is shown;

[0025] Figure 6 It shows a schematic diagram of the structure when the tire frame base of the present application cooperates with the lower horizontal main frame;

[0026] Figure 7 It shows a schematic diagram of the structure when the horizontal main frame and the tire frame base are separated in the present application;

[0027] Figure 8 This application shows Figure 3 A schematic diagram of the partially enlarged structure at point A in the middle;

[0028] Fig. 9 This application shows Figure 3 A schematic diagram of the partially enlarged structure at B in the middle;

[0029] Fig.10 This application shows Figure 4 A schematic diagram of the partially enlarged structure at C in the middle;

[0030] Fig.11 This application shows Figure 7 Schematic diagram of the locally enlarged structure at point D in the middle.

[0031] Reference numerals list

[0032] 1. Tire frame base; 101. Base support frame; 102. Support frame connecting rod; 103. Base guide port; 104. Lower main frame socket; 105. Lower main frame connecting plate; 106. Connecting plate through slot; 2. Spacing adjustment screw; 3. Lower horizontal main frame; 301. Main frame rotation axis; 302. Lower positioning notch; 4. Vertical fixed oblique frame; 401. Oblique frame socket; 402. Limit pin plate; 403. Inner guide roller; 404. Upper horizontal main frame; 5. Lateral adjustment frame; 501. Vertical fixed straight frame; 502. Outer guide roller; 503. Screw push block; 6. Upper main frame slot plate; 601. Upper positioning notch; 7. Adjustable hanging plate; 701. Hanging plate plug plate; 702. Horizontal support steel bar. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solution and advantages of the embodiment of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiment of the present invention. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] Example 1: Please refer to Figures 1 to 11 :

[0035] The present invention proposes an efficient small box girder steel bar frame manufacturing platform, comprising: a frame base 1, a spacing adjustment screw 2 is installed at the bottom of the frame base 1, two lower horizontal main frames 3 are installed above the frame base 1, two ends of the lower horizontal main frames 3 are fixedly connected with main frame rotation shafts 301, the front edge and the rear edge of the frame base 1 are respectively fixedly connected with two lower main frame connecting plates 105, the lower main frame connecting plates 105 are provided with connecting plate through grooves 106, the connecting plate through grooves 106 are slidably connected with the main frame rotation shaft 301, the cross-section of the lower horizontal main frame 3 is a "cross" structure, the outer edge of the lower horizontal main frame 3 is provided with a lower positioning notch 302, the left and right sides above the frame base 1 are movably connected with vertical fixed oblique frames 4, and the vertical fixed oblique frames 4 are fixedly connected with lateral adjustment Frame 5, lateral adjustment frame 5 is movably connected above the tire frame base 1, an upper horizontal main frame 404 is installed above the vertical fixed oblique frame 4, an upper main frame slot plate 6 is installed above the upper horizontal main frame 404 by bolts, and an upper positioning notch 601 is provided on the outer edge of the upper main frame slot plate 6, and an adjustable hanging plate 7 is installed on the inclined surface of the vertical fixed oblique frame 4 facing the center direction of the tire frame base 1, and a horizontal supporting steel bar 702 is welded on the adjustable hanging plate 7; the steel bars at the bottom of the small box beam are placed through the cooperation of two groups of lower horizontal main frames 3, so that the steel bars at the bottom of the small box beam are evenly distributed inside the tire frame platform, and the horizontally placed steel bars are supported by the horizontal supporting steel bars 702, so that the steel bars are evenly installed on the two sides of the tire frame platform, which is convenient for operators to bundle the steel bars.

[0036] In the disclosed embodiment, an inner guide roller 403 is installed below the vertical fixed oblique frame 4, a base guide opening 103 is opened on the upper surface of the tire frame base 1, and the inner guide roller 403 is rollingly connected to the base guide opening 103, and an outer guide roller 502 is installed below the lateral adjustment frame 5, and the outer guide roller 502 is rollingly connected to the base guide opening 103. By setting the inner guide roller 403 and the outer guide roller 502, the movement resistance of the vertical fixed oblique frame 4 and the lateral adjustment frame 5 can be reduced, and the spiral transmission between the spacing adjustment screw 2 and the spiral push block 503 can be used to control the approach and distance of the lateral adjustment frames 5 on both sides and the upper main frame slot plate 6. , thereby effectively adjusting the placement spacing of the steel bars on both sides of the small box beam, so that the same special steel bar bundling frame platform can be used to place and position the steel bars for small box beams with different size requirements. The outer formwork and steel bar skeleton are constructed at the same time, so that the construction period of the single beam can be shortened, the construction efficiency is improved, the cost is saved, and the quality is improved; the bottom web steel bars are processed by the formwork, so that the spacing of the rigid bars is easier to control, the binding and installation are more convenient, the construction time of the single bottom web steel bars is shortened, the labor efficiency is improved, the binding of this part of the steel bars is simpler and easier to learn, the adaptation period of the workers is shortened, and the number of workers can be reduced, saving labor costs.

[0037] In the disclosed embodiment, a base support frame 101 is fixedly connected to the bottom of the tire frame base 1, a support frame connecting rod 102 is welded to the top of the base support frame 101, a spacing adjustment screw 2 is rotatably connected to the top of the support frame connecting rod 102 through a bearing frame, a vertical fixed straight frame 501 is fixedly connected to the top of the lateral adjustment frame 5, the vertical fixed straight frame 501 is welded to the vertical fixed oblique frame 4, a spiral push block 503 is connected to the middle of the lower surface of the lateral adjustment frame 5 by welding, and the spiral push block 503 is spirally connected to the spacing adjustment screw 2; the spacing adjustment screw 2 can be When the spacing adjusting screw 2 rotates under the action of external force, the threads at both ends of the spacing adjusting screw 2 rotate in opposite directions. When the spacing adjusting screw 2 rotates, the spiral transmission between the threads at both ends and the two spiral push blocks 503 drives the two side adjustment frames 5 to move synchronously toward the center direction of the spacing adjusting screw 2 or away from the center direction of the spacing adjusting screw 2, thereby pushing the vertical fixed oblique frames 4 and the lateral adjustment frames 5 on both sides to move closer or farther away, thereby adjusting the width of the tire frame platform, so that the same special tire frame platform for steel bar bundling can be used to place and position steel bars for small box girders with different size requirements.

[0038] In the disclosed embodiment, a lower main frame socket 104 is opened above the rod body of the tire frame base 1, and the lower main frame socket 104 is tightly inserted into the branch plate of the lower horizontal main frame 3 to fix the lower horizontal main frame 3, keep the two lower horizontal main frames 3 in a parallel state at all times, keep the lower horizontal main frame 3 balanced, and avoid the lower horizontal main frame 3 from tilting and causing the steel bars to shake.

[0039] In the disclosed embodiment, the vertical fixed diagonal frame 4 is an "L"-shaped frame body, and the vertical fixed diagonal frame 4 is penetrated with four diagonal frame sockets 401, and the outer surface of the vertical fixed diagonal frame 4 is fixedly connected with four limit pin plates 402, and the limit pin plates 402 and the diagonal frame sockets 401 are located at the same height. The outer surface of the adjustable hanging plate 7 is welded with two hanging plate plugs 701, and the hanging plate plugs 701 are penetrated with plugs. The hanging plate plugs 701 are inserted into the diagonal frame sockets 401, and the limit pin plates 402 are installed with plugs. The limit pin plates 402 are fixed to the hanging plate plugs 701 by the plugs; the horizontally placed steel bars are supported by the horizontal support steel bars 702, so that the steel bars are spaced It is evenly installed on both sides of the tire frame platform. At the same time, the adjustable hanging plate 7 can be removed from the inner surface of the lateral adjustment frame 5, and different types of adjustable hanging plates 7 can be replaced. The horizontal supporting steel bars 702 spacings of different types of adjustable hanging plates 7 are different. Adjustable hanging plates 7 with different horizontal supporting steel bars 702 spacings can be selected according to actual use, and then the side steel bar distribution density of the small box girder can be adjusted, so that the side steel bar distribution density of the small box girder can be reasonably adjusted according to the application scenario and load-bearing requirements, which is beneficial to saving production costs and shortening the construction period. It is suitable for the construction of prefabricated small box girders and T-beams with high quality standards, tight construction period, large production volume and clear project cost targets.

[0040] Embodiment 2, on the basis of embodiment 1, the outer edges of the four support plates of the lower horizontal main frame 3 are respectively provided with lower positioning slots 302, the arrangement density of the four groups of lower positioning slots 302 is different, and the lower positioning slots 302 are "V"-shaped slots; the steel bars are placed and limited by the lower positioning slots 302 on the upper edge of the branch plate, so that the steel bars are arranged at a fixed interval at the bottom of the frame platform, which is convenient for operators to bundle the steel bars. The distribution intervals of the lower positioning slots 302 on the outer edges of the four branch plates of the lower horizontal main frame 3 are inconsistent, and the different branch plates can be adjusted upward by rotating the lower horizontal main frame 3, so that the steel bars are arranged at different distribution densities, and the distribution density of the steel bars at the bottom of the small box girder is adjusted.

[0041] The working principle of this embodiment is as follows: first, use a tool to rotate the spacing adjustment screw 2, and the threads at both ends of the spacing adjustment screw 2 rotate in opposite directions. When the spacing adjustment screw 2 rotates, the spiral transmission between the threads at both ends and the two spiral push blocks 503 drives the two side lateral adjustment frames 5 to move synchronously toward the center direction of the spacing adjustment screw 2 or away from the center direction of the spacing adjustment screw 2, thereby pushing the vertical fixed diagonal frames 4 and the lateral adjustment frames 5 on both sides to move closer or farther away, thereby adjusting the width of the tire frame platform, so that the spacing between the vertical fixed diagonal frames 4 and the lateral adjustment frames 5 on both sides is adjusted to the value of the required small box beam width size, select the adjustable hanging plate 7 of the horizontal support steel bar 702 corresponding to the required horizontal steel bar placement density on the side of the small box beam, and install it to the inner surface of the vertical fixed diagonal frame 4, so that the hanging plate plug plate 701 is inserted into and passes through the diagonal frame socket 401, and the pin in the limit pin plate 402 is pushed back. Move to insert the pin into the pin hole of the hanging plate plug plate 701, firmly install the adjustable hanging plate 7 on the inner side of the tire frame platform, lift the lower horizontal main frame 3, pull the support plate of the lower horizontal main frame 3 out of the lower main frame socket 104, rotate the lower horizontal main frame 3, select the support plate with the lower positioning groove 302 of appropriate density to face upward, and fix the lower horizontal main frame 3 on the top of the tire frame base 1 again, and arrange the side steel bars required for the preparation of the small box girder according to the horizontal support steel bars 702 and the upper positioning groove 601 accurately according to the process requirements and place them on the inner side wall of the tire frame platform, and arrange the bottom steel bars required for the preparation of the small box girder according to the lower positioning groove 302 according to the process requirements and place them on the inner bottom of the tire frame platform, tie the small box girder skeleton on the tire frame, after the skeleton is tied, install and fix the prestressed pipe, and use a special hoist to lift the tied prefabricated small box girder steel bar skeleton as a whole into the mold for the next step of processing.

[0042] In this article, there are a few points to note:

[0043] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0044] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0045] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. An efficient small box beam steel bar frame manufacturing platform, comprising: A tire frame base (1), a spacing adjustment screw (2) is installed at the bottom of the tire frame base (1), characterized in that two lower horizontal main frames (3) are installed above the tire frame base (1), and the two ends of the lower horizontal main frames (3) are fixedly connected with the main frame rotating shaft (301), and the front edge and the rear edge of the tire frame base (1) are respectively fixedly connected with two lower main frame connecting plates (105), and the lower main frame connecting plates (105) are provided with connecting plate through grooves (106) inside, and the connecting plate through grooves (106) are slidably connected with the main frame rotating shaft (301), the cross section of the lower horizontal main frame (3) is a "cross" structure, and the outer edge of the lower horizontal main frame (3) is provided with a lower positioning notch (302), and the tire frame A vertical fixed oblique frame (4) is movably connected to the left and right sides above the base (1); a lateral adjustment frame (5) is fixedly connected to the outside of the vertical fixed oblique frame (4); the lateral adjustment frame (5) is movably connected to the top of the tire frame base (1); an upper horizontal main frame (404) is installed above the vertical fixed oblique frame (4); an upper main frame slot plate (6) is installed above the upper horizontal main frame (404) by bolts; an upper positioning notch (601) is provided on the outer edge of the upper main frame slot plate (6); an adjustable hanging plate (7) is installed on the inclined surface of the vertical fixed oblique frame (4) facing the center direction of the tire frame base (1); and a horizontal supporting steel bar (702) is welded to the adjustable hanging plate (7).

2. The high-efficiency small box beam steel bar frame manufacturing platform according to claim 1 is characterized in that: An inner guide roller (403) is installed below the vertical fixed oblique frame (4), a base guide opening (103) is opened on the upper surface of the tire frame base (1), and the inner guide roller (403) is rollingly connected to the base guide opening (103); an outer guide roller (502) is installed below the lateral adjustment frame (5), and the outer guide roller (502) is rollingly connected to the base guide opening (103).

3. The high-efficiency small box beam steel bar frame manufacturing platform according to claim 1 is characterized in that: A base support frame (101) is fixedly connected below the tire frame base (1), a support frame connecting rod (102) is welded above the base support frame (101), and a spacing adjustment screw (2) is rotatably connected above the support frame connecting rod (102) via a bearing frame.

4. The high-efficiency small box beam steel bar frame manufacturing platform according to claim 1 is characterized in that: A lower main frame socket (104) is provided above the rod body of the tire frame base (1), and the lower main frame socket (104) is tightly plugged into the branch plate of the lower horizontal main frame (3).

5. The high-efficiency small box beam steel bar frame manufacturing platform according to claim 1 is characterized in that: The vertical fixed oblique frame (4) is an "L"-shaped frame body, and four oblique frame sockets (401) are opened through the vertical fixed oblique frame (4), and four limit pin plates (402) are fixedly connected to the outer surface of the vertical fixed oblique frame (4), and the limit pin plates (402) and the oblique frame sockets (401) are located at the same height.

6. The high-efficiency small box beam steel bar frame manufacturing platform according to claim 1 is characterized in that: A vertical fixed straight frame (501) is fixedly connected to the upper side of the lateral adjustment frame (5), the vertical fixed straight frame (501) is welded to the vertical fixed oblique frame (4), a spiral push block (503) is welded to the middle of the lower surface of the lateral adjustment frame (5), and the spiral push block (503) is spirally connected to the spacing adjustment screw (2).

7. The high-efficiency small box beam steel bar frame manufacturing platform according to claim 5 is characterized in that: Two hanging plate plugging plates (701) are welded on the outer surface of the adjustable hanging plate (7), and a plug hole is opened through the hanging plate plugging plate (701). The hanging plate plugging plate (701) penetrates and plugs into the inclined frame socket (401), and a plug is installed in the limit pin plate (402), and the limit pin plate (402) and the hanging plate plugging plate (701) are fixed by the plug.

8. The high-efficiency small box beam steel bar frame manufacturing platform according to claim 1 is characterized in that: The outer edges of the four support plates of the lower horizontal main frame (3) are respectively provided with lower positioning notches (302), the arrangement density of the four groups of lower positioning notches (302) is different, and the lower positioning notches (302) are "V"-shaped notches.

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