End reinforcing steel bar positioning device for segment reinforcement cage moulding bed frame

Abstract

A segment reinforcement cage moulding bed frame end steel bar positioning device is used in pairs and is symmetrically connected to the two ends of a moulding bed frame stirrup positioning plate, and the device comprises a rotating shaft, a limiting shaft, a main stress plate, a steel bar positioning plate, a connecting plate and a baffle. The two steel bar positioning plates are arranged in parallel up and down; steel bar limiting grooves are formed in the front sides of the steel bar positioning plates; a plurality of connecting plates are vertically arranged between the two steel bar positioning plates in the length direction of the steel bar positioning plates, and the upper portion of a main stress plate which is vertically arranged is fixedly connected to the rear sides of the steel bar positioning plates and the connecting plates; the lower parts of the main stress plates are rotationally connected with the moulding bed frame stirrup positioning plates through rotating shafts, limiting grooves are formed in the middle areas of the main stress plates, and limiting shafts penetrate into the corresponding limiting grooves between the main stress plates on the two sides and the guide grooves of the moulding bed frame stirrup positioning plates; the baffle is installed on the upper surface of the upper steel bar positioning plate. The device can directly and accurately position end steel bars of the reinforcement cage and can longitudinally limit upper-layer steel bars, and the steel bar positioning precision and positioning speed are greatly improved.

Description

Technical field:

[0001] The utility model belongs to the technical field of engineering construction, relates to a special formwork frame for manufacturing a steel cage, and particularly relates to a steel bar positioning device at the end of a steel cage formwork frame for a pipe segment. Background technology:

[0002] At present, when making steel cages for pipe segments, special formwork frames are used to assemble steel bars. The reinforcement of steel cages for pipe segments mainly includes longitudinal main bars along the arc length direction, stirrups along the width direction and other reinforcing bars. The position accuracy of the main bars and stirrups directly affects the overall force of the formed pipe segments. At present, when making steel cages, the precise positioning of the inner and outer sides and side steel bars of the steel cage can be ensured by using limiting devices such as main bar positioning plates, stirrup positioning plates and stirrup positioning cards on the formwork frame. Since the longitudinal main bars need to be inserted from the end of the formwork frame, it is not easy to set a positioning device at the end of the formwork frame. The spacing of the steel bars at the end of the steel cage is mainly controlled by the straightness of the arc steel bars themselves and manual adjustment. When the arc steel bars are warped, it is difficult to position the steel bars at the end of the steel cage, the positioning accuracy is poor, and the positioning efficiency is low. Utility model content:

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a device for positioning the end steel bars of a segment steel cage formwork, so as to solve the problems of difficult positioning of the end steel bars, poor positioning accuracy and low positioning efficiency during the current production of steel cages.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0005] The utility model provides a steel bar positioning device for the end of a steel bar cage formwork frame of a pipe segment. The positioning device is used in pairs and is symmetrically installed at both ends of the hoop reinforcement positioning plates of the formwork frame. The positioning device comprises a rotating shaft, a limiting shaft, a main force-bearing plate, a steel bar positioning plate, a connecting plate, and a baffle. Two steel bar positioning plates are arranged in parallel in the height direction, and a steel bar limiting groove for accommodating the end steel bars is arranged on the front side of the steel bar positioning plate. Several connecting plates are vertically arranged between the two steel bar positioning plates and along the length direction of the steel bar positioning plates. The rear side of the steel bar positioning plate and the connecting plate are fixedly connected to the main force-bearing plate There are two groups of main load-bearing plates arranged vertically and in parallel, and the steel bar positioning plate is connected to the main load-bearing plate through a connecting plate to form a whole; the lower part of the main load-bearing plate is rotatably connected with the tire formwork frame hoop reinforcement positioning plate through a rotating shaft; a limiting groove for the upper and lower movement of the limiting shaft is arranged in the middle area of ​​the main load-bearing plate, and guide grooves corresponding to the limiting grooves are symmetrically arranged at both ends of the tire formwork frame hoop reinforcement positioning plate, and the limiting shaft is inserted into the corresponding limiting grooves between the two groups of main load-bearing plates and the corresponding guide grooves of the tire formwork frame hoop reinforcement positioning plate, and the limiting shaft can move in the guide groove; the baffle is installed on the upper surface of the upper steel bar positioning plate.

[0006] The spacing of the steel bar limiting grooves is determined according to the spacing of the steel bars at the ends of the steel bar cage, and the steel bar limiting grooves are larger at the front and smaller at the back.

[0007] The two steel bar positioning plates are of equal length.

[0008] The main load-bearing plates and the tire formwork frame stirrup positioning plates are connected by a double-sided clamping method. Each group of main load-bearing plates is provided with two plates vertically and in parallel. The two main load-bearing plates are clamped on the outside of the corresponding connecting plates. A gap is formed between the lower parts of the two main load-bearing plates into which the tire formwork frame stirrup positioning plates can be embedded. Through holes matching the rotating axis are correspondingly arranged on the lower parts of the two main load-bearing plates and the tire formwork frame stirrup positioning plates. The tire formwork frame stirrup positioning plates are embedded in the gap between the lower parts of the two main load-bearing plates. The rotating axis is inserted into the corresponding through holes to rotationally connect the lower parts of the main load-bearing plates with the tire formwork frame stirrup positioning plates.

[0009] A reinforcing plate is vertically arranged between the two steel bar positioning plates and on the connecting plate.

[0010] The front part of the guide groove is straight-line, and the rear part is arc-shaped.

[0011] The baffle plate is positioned in alignment with the deepest part of the steel bar limiting groove.

[0012] A rib plate is arranged at the rear side of the baffle, and the fixed position of the rib plate corresponds to the position of the steel bar limiting groove one by one.

[0013] The height of the baffle is sufficient to block the upper arc-shaped steel bars.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] When the utility model is used to assemble the steel cage, the end steel bars of the steel cage can be directly and accurately positioned, and the upper steel bars can also be longitudinally limited. When the arc-shaped steel bars are warped, the steel bars can also be checked and positioned and installed by the utility model, which greatly improves the steel bar positioning accuracy and positioning speed, and improves the steel cage welding quality and efficiency. Description of the drawings:

[0016] Figure 1 The overall structure of the utility model is shown in FIG. Figure 1 ;

[0017] Figure 2 The overall structure of the utility model is shown in FIG. Figure 2 ;

[0018] Figure 3 It is the installation diagram of the utility model.

[0019] Reference numerals in the figures:

[0020] 1-rotation axis, 2-limit axis, 3-main force plate, 3.1-limit groove, 4-rebar positioning plate, 4.1-rebar limiting groove, 5-connecting plate, 5.1-reinforcement plate, 6-baffle, 7-rib plate, 8-formwork frame stirrup positioning plate, 8.1-guide groove. Specific implementation method:

[0021] The present invention is further described below in conjunction with specific implementation methods. The specific implementation methods are further descriptions of the principles of the present invention and do not limit the present invention in any way. Technologies identical or similar to the present invention do not exceed the scope of protection of the present invention.

[0022] See also Figure 1-Figure 3 The utility model provides a steel bar positioning device for the end of a segment steel bar cage formwork. The positioning device is used in pairs and is symmetrically installed at both ends of a stirrup positioning plate 8 of the formwork. The positioning device includes a rotating shaft 1, a limiting shaft 2, a main force plate 3, a steel bar positioning plate 4, a connecting plate 5, a baffle 6, and a rib plate 7.

[0023] The steel bar positioning plates 4 of the positioning device are provided with at least two pieces in the height direction to ensure that the upper and lower spacings of the end steel bars can meet the requirements, and at the same time ensure that the outer dimensions of the steel bar cage will not be oversized after being formed; the setting position and size of the steel bar positioning plates 4 need to ensure that they do not affect the installation and welding of other steel bars. In this embodiment, two steel bar positioning plates 4 are provided in parallel in the height direction, and the two steel bar positioning plates 4 are of equal length. The front side of the steel bar positioning plates 4 is provided with steel bar limiting grooves 4.1 for accommodating the end steel bars, which are used to accurately position the steel bars at the end of the steel bar cage. The setting spacing of the steel bar limiting grooves 4.1 is determined according to the spacing of the steel bars at the end of the steel bar cage. The steel bar limiting grooves 4.1 are larger in the front and smaller in the back, which guide the steel bars to the specified position faster when installing the steel bars, so as to improve the assembly efficiency of the steel bars.

[0024] Between the two steel bar positioning plates 4, several connecting plates 5 are vertically arranged along the length direction of the steel bar positioning plates 4 for connecting the two steel bar positioning plates 4. Between the two steel bar positioning plates 4, a reinforcing plate 5.1 is vertically arranged on the connecting plate 5 to prevent the relative position of the upper and lower steel bar positioning plates 4 from being deformed during the use of the positioning device.

[0025] The rear side of the steel bar positioning plate 4 and the connecting plate 5 are fixedly connected to the upper part of the main load-bearing plate 3. Two groups of main load-bearing plates 3 are vertically arranged in parallel. The steel bar positioning plate 4 and the main load-bearing plate 3 are connected to form a whole through the connecting plate 5. To ensure stable force, a double-sided clamping connection is adopted when connecting the main force-bearing plate 3 and the tire formwork frame stirrup positioning plate 8. In this embodiment, two groups of main force-bearing plates 3 are fixedly connected on the steel bar positioning plate 4 and the connecting plate 5. Each group of main force-bearing plates 3 is vertically and parallelly arranged with two pieces. The two main force-bearing plates 3 are clamped on the outer sides of the corresponding connecting plates 5. A gap is formed between the lower parts of the two main force-bearing plates 3 into which the tire formwork frame stirrup positioning plate 8 can be embedded. The lower part of the main force-bearing plate 3 is rotatably connected to the tire formwork frame stirrup positioning plate 8 through the rotating shaft 1. The lower parts of the two main force-bearing plates 3 and the tire formwork frame stirrup positioning plate 8 are correspondingly provided with through holes matching the rotating shaft 1. The tire formwork frame stirrup positioning plate 8 is embedded in the gap between the lower parts of the two main force-bearing plates 3. The rotating shaft 1 is inserted into the corresponding through hole to rotatably connect the lower part of the main force-bearing plate 3 with the tire formwork frame stirrup positioning plate 8. A limiting groove 3.1 for the upward and downward movement of the limiting shaft 2 is arranged in the middle area of ​​the main load-bearing plate 3, so as to realize the tight positioning and opening of the positioning device; guide grooves 8.1 corresponding to the limiting grooves 3.1 are symmetrically arranged at both ends of the tire formwork frame stirrup positioning plate 8, and the front part of the guide groove 8.1 is linear and the rear part is arc-shaped. The arc-shaped end of the guide groove 8.1 at the end of the tire formwork frame where the steel bars are inserted needs to be lengthened to ensure that the positioning device can be opened to a position that does not affect the insertion of the steel bars; the limiting shaft 2 is inserted into the corresponding limiting grooves 3.1 between the two main load-bearing plates 3 and the corresponding guide grooves 8.1 of the tire formwork frame stirrup positioning plate 8, and the limiting shaft 2 can move in the guide groove 8.1. By adjusting the position of the limiting shaft 2, the positioning device can be rotated relative to the tire formwork frame stirrup positioning plate 8 through the rotating shaft 1 to realize the adjustment of the working state and the non-working state of the positioning device. The positioning device is connected to the tire formwork frame stirrup positioning plate 8 through the main load-bearing plate 3, thereby achieving installation, fixation and precise positioning of the positioning device.

[0026] The baffle 6 is installed on the upper surface of the upper steel bar positioning plate 4, and is used to limit the arc-shaped steel bars on the upper part of the steel cage in the longitudinal direction. The height of the baffle 6 is sufficient to block the upper arc-shaped steel bars, so as to avoid the baffle 6 being too high to affect the welding operation of the end steel bars and the upper arc-shaped steel bars; the position of the baffle 6 is aligned with the deepest part of the steel bar limiting groove 4.1, so as to achieve complete alignment of the end steel bars with the outermost side of the upper main bars. The rear side of the baffle 6 is provided with a rib plate 7 for reinforcement, and the fixed position of the rib plate 7 corresponds to the position of the steel bar limiting groove 4.1 one by one, so as to minimize the deformation of the baffle 6 caused by the steel bar being inserted and assembled.

[0027] The working principle of the positioning device is as follows:

[0028] When making a steel cage, the first step is to keep the positioning device on the tire formwork frame, where the steel bars need to be inserted, in a non-working state first, and directly push the limit shaft 2 along the guide groove 8.1 to drive the positioning device to rotate. When the limit shaft 2 moves to the position of the limit groove 3.1, move the limit shaft 2 downward, and the limit shaft 2 is firmly fixed in the limit groove 3.1. At this time, the positioning device is in a working state; the second step is to install the stirrups and insert the upper and lower main bars in turn. At this time, the end steel bars enter the steel bar limit groove 4.1 in turn for precise positioning, and then weld the end steel bars and the upper main bars; the third step is to install the stirrups and insert the upper and lower main bars in turn. After all the steel bars are inserted, the positioning device that needs to be inserted into one end of the steel bar is pushed upward to the working state according to the operation of the first step. At this time, the positioning device can accurately position all the end steel bars at this end, and then weld the end steel bars to the upper main bars, and finally assemble and weld the steel bars in other parts of the steel cage; Step 4: When the welding of the steel cage is completed, pull the limit shaft 2 to move the limit shaft 2 along the direction of the guide groove 8.1, drive the positioning device to leave the end steel bar, and after the positioning devices at both ends are opened and in the non-working state, open the positioning devices on both sides of the tire mold frame and then use the lifting tool to lift the steel cage out to make the next steel cage.

[0029] In summary, the positioning device is a tooling for positioning the steel bars at the end of the steel cage. By adding the positioning device at both ends of the formwork frame, the positioning accuracy and positioning speed of the steel bars at the end of the steel cage can be improved, thereby improving the welding quality and efficiency of the steel cage.

Claims

1. A steel bar positioning device for the end of a segment steel bar cage formwork, characterized by: The positioning device is used in pairs and is symmetrically installed at both ends of the tire formwork frame stirrup positioning plate (8). The positioning device comprises a rotating shaft (1), a limiting shaft (2), a main load-bearing plate (3), a steel bar positioning plate (4), a connecting plate (5), and a baffle (6); two steel bar positioning plates (4) are arranged in parallel in the height direction, and a steel bar limiting groove (4.1) for accommodating the end steel bars is arranged on the front side of the steel bar positioning plate (4); a plurality of connecting plates (5) are arranged vertically between the two steel bar positioning plates (4) and along the length direction of the steel bar positioning plates (4); the rear side of the steel bar positioning plate (4) and the connecting plate (5) are fixedly connected to the upper part of the main load-bearing plate (3); two groups of main load-bearing plates (3) are arranged vertically in parallel through the connecting plate (5) The steel bar positioning plate (4) is connected to the main load-bearing plate (3) to form a whole; the lower part of the main load-bearing plate (3) is rotatably connected to the tire formwork frame stirrup positioning plate (8) through a rotating shaft (1); a limiting groove (3.1) for the upper and lower movement of the limiting shaft (2) is arranged in the middle area of ​​the main load-bearing plate (3); guide grooves (8.1) corresponding to the limiting groove (3.1) are symmetrically arranged at both ends of the tire formwork frame stirrup positioning plate (8); the limiting shaft (2) is inserted into the corresponding limiting groove (3.1) between the two groups of main load-bearing plates (3) and the corresponding guide groove (8.1) of the tire formwork frame stirrup positioning plate (8), and the limiting shaft (2) can move in the guide groove (8.1); the baffle (6) is installed on the upper surface of the upper steel bar positioning plate (4).

2. The steel bar positioning device for the end of a segment steel bar cage formwork according to claim 1 is characterized by: The spacing of the steel bar limiting grooves (4.1) is determined according to the spacing of the steel bars at the ends of the steel bar cage, and the steel bar limiting grooves (4.1) are larger at the front and smaller at the back.

3. The steel bar positioning device for the end of a segment steel bar cage formwork according to claim 1 is characterized by: The two steel bar positioning plates (4) are of equal length.

4. The steel bar positioning device for the end of a segment steel bar cage formwork according to claim 1 is characterized by: The main load-bearing plates (3) and the tire formwork frame stirrup positioning plates (8) are connected by double-sided clamping. The two groups of main load-bearing plates (3) are fixedly connected on the reinforcement positioning plates (4) and the connecting plates (5). Each group of main load-bearing plates (3) is provided with two pieces in parallel in a vertical direction. The two main load-bearing plates (3) are clamped on the outer sides of the corresponding connecting plates (5). A gap is formed between the lower parts of the two main load-bearing plates (3) into which the tire formwork frame stirrup positioning plates (8) are embedded. The lower parts of the two main load-bearing plates (3) and the tire formwork frame stirrup positioning plates (8) are provided with corresponding through holes matching the rotation axis (1). The tire formwork frame stirrup positioning plates (8) are embedded in the gap between the lower parts of the two main load-bearing plates (3). The corresponding through holes are penetrated by the rotation axis (1) to rotate and connect the lower parts of the main load-bearing plates (3) with the tire formwork frame stirrup positioning plates (8).

5. The steel bar positioning device for the end of a segment steel bar cage formwork according to claim 1 is characterized by: A reinforcing plate (5.1) is vertically arranged between the two steel bar positioning plates (4) and on the connecting plate (5).

6. The steel bar positioning device for the end of a segment steel bar cage formwork according to claim 1 is characterized by: The guide groove (8.1) has a straight-line front portion and an arc-shaped rear portion.

7. The steel bar positioning device for the end of a segment steel bar cage formwork according to claim 1 is characterized by: The position of the baffle plate (6) is aligned with the deepest part of the steel bar limiting groove (4.1).

8. The steel bar positioning device for the end of a segment steel bar cage formwork according to claim 1 is characterized by: A rib plate (7) is arranged at the rear side of the baffle plate (6), and the fixed position of the rib plate (7) corresponds one-to-one to the position of the steel bar limiting groove (4.1).

9. The steel bar positioning device for the end of a segment steel bar cage formwork according to claim 1 is characterized by: The height of the baffle (6) is sufficient to block the upper arc-shaped steel bars.

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