Pile head steel bar forming device

Abstract

The utility model provides a pile head reinforcing steel bar forming device which comprises a fixing mechanism used for fixing reinforcing steel bars and a bending mechanism arranged on the fixing mechanism and used for bending the reinforcing steel bars, and the fixing mechanism comprises a supporting cylinder arranged in the direction back to the bending direction of the reinforcing steel bars and a first supporting ring arranged in the bending direction of the reinforcing steel bars and corresponding to the upper portion of the supporting cylinder. The bending mechanism comprises a rotating mechanism arranged above the supporting barrel, a hydraulic cylinder arranged on the rotating mechanism and a U-shaped block arranged on an extending shaft of the hydraulic cylinder and used for clamping the reinforcing steel bars. The first supporting ring is arranged on the outer side of the supporting cylinder, the supporting cylinder and the first supporting ring are used for fixing the bending point of the reinforcing steel bar, and the bending mechanism is arranged above the supporting cylinder, so that bending of the reinforcing steel bar is finally completed, and the precision of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the field of bridge construction auxiliary tools, in particular to a pile head steel bar forming device. Background Art

[0002] Before the construction of the lower structure pier column of a bridge project, it is necessary to break the pile head of the cast-in-place pile and expose the steel bars wrapped by concrete intact. The specification requires that the cast-in-place pile should be embedded 10 cm into the bearing platform, that is, the cast-in-place pile should be exposed on the surface of the cushion layer. Generally, when the construction workers bend the steel bars on site, they rely entirely on eyesight to observe the position, resulting in the length of the steel bars extending into the bearing platform and the hook size not meeting the specification and design requirements. The secondary adjustment affects the construction progress.

[0003] Therefore, there is an urgent need for an auxiliary tool to ensure that the linear shape and hook size of the steel bars extending into the bearing platform meet the specification and design requirements. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a pile head steel bar forming device to solve the problem of steel bar bending and forming.

[0005] To solve the above technical problem, the utility model provides a pile head steel bar forming device, which includes a fixing mechanism for fixing the steel bar and a bending mechanism for bending the steel bar arranged on the fixing mechanism. The fixing mechanism includes a support cylinder arranged against the steel bar bending direction, and a first support ring arranged corresponding to the upper part of the support cylinder in the steel bar bending direction. The bending mechanism includes a rotating mechanism arranged above the support cylinder, a hydraulic cylinder arranged on the rotating mechanism, and a U-shaped block arranged on the extending shaft of the hydraulic cylinder for clamping the steel bar.

[0006] In a preferred solution, a plurality of first semi-circular grooves matching the steel bar are arranged on the side surface of the support cylinder, and a plurality of second semi-circular grooves matching the steel bar are also arranged on the first support ring.

[0007] In a preferred solution, a second support ring is further arranged below the support cylinder, and a semi-circular groove matching the steel bar is also arranged on the second support ring.

[0008] In a preferred solution, a groove is arranged above the support cylinder, and the rotating mechanism is arranged in the groove.

[0009] In a preferred solution, the rotating mechanism includes a fixing seat arranged in the groove, a through hole is arranged on the fixing seat; a rotating shaft arranged in the through hole; a mounting plate arranged above the rotating shaft; and the hydraulic cylinder is mounted on the mounting plate.

[0010] In a preferred solution, a bearing is arranged in the through hole, and the rotating shaft is sleeved on the bearing.

[0011] In a preferred embodiment, a limiting mechanism is provided on both sides of the first semi-circular groove. The limiting mechanism includes a U-shaped frame corresponding to the first semi-circular groove; and a fixed shaft provided on the U-shaped frame.

[0012] In a preferred embodiment, a threaded rod is further provided below the U-shaped frame, and a corresponding threaded hole is provided in the first support ring.

[0013] In a preferred embodiment, a mounting seat for supporting the first support ring is further provided on the side of the support cylinder. A positioning pin is provided on the mounting seat, and a matching pin hole is provided in the first support ring.

[0014] The beneficial effect of the present utility model is that since the present utility model provides a device for forming pile head steel bars, by arranging a support cylinder in the inner circle surrounded by the steel bars and a first support ring outside the support cylinder, the support cylinder and the first support ring are used to fix the bending point of the steel bars, and a bending mechanism is arranged above the support cylinder, so as to finally complete the bending of the steel bars, improving the precision of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The following further describes the present utility model with reference to the drawings and embodiments:

[0016] Figure 1 is the overall axonometric structure diagram of the embodiment of the present utility model;

[0017] Figure 2 is the overall axonometric structure diagram of the embodiment of the present utility model after removing the steel bars;

[0018] Figure 3 is the cross-sectional structure diagram of the rotating mechanism of the embodiment of the present utility model;

[0019] Figure 4 is the overall side view structure diagram of the embodiment of the present utility model after removing the steel bars;

[0020] Figure 5 is the structure diagram of the support cylinder of the embodiment of the present utility model;

[0021] Figure 6 is the effect after the steel bars are formed in the embodiment of the present utility model.

[0022] Reference numerals: steel bar 1; fixing mechanism 2; support cylinder 21; first semi-circular groove 211; groove 212; first support ring 22; second semi-circular groove 221; second support ring 23; mounting seat 24; positioning pin 25; bending mechanism 3; hydraulic cylinder 31; U-shaped block 32; rotating mechanism 4; fixed seat 41; through hole 411; rotating shaft 42; mounting plate 43; bearing 44; limiting mechanism 5; U-shaped frame 51; fixed shaft 52; threaded rod 53. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Please refer to Figure 1-6As shown in the figure, an embodiment of the present application provides a technical solution: a pile head steel bar forming device, which includes a fixing mechanism 2 for fixing the steel bar 1 and a bending mechanism 3 arranged on the fixing mechanism 2 for bending the steel bar 1. The fixing mechanism 2 includes a support cylinder 21 arranged on the back of the steel bar 1 in the bending direction, and a first support ring 22 arranged on the steel bar 1 in the bending direction corresponding to the upper part of the support cylinder 21. The bending mechanism 3 includes a rotating mechanism 4 arranged above the support cylinder 21, a hydraulic cylinder 31 arranged on the rotating mechanism 4, and a U-shaped block 32 arranged on the extending shaft of the hydraulic cylinder 31 for clamping the steel bar.

[0024] The support cylinder 21 can be arranged on the already completed cast-in-place pile 11. The support cylinder 21 can serve the purpose of providing back support during bending to prevent the lower part of the steel bar from bending. The rotating mechanism 4 is arranged to bend the steel bar 1 around the support cylinder 21.

[0025] By means of the support cylinder 21 and the first support ring 22, the fulcrum of the steel bar 1 can be clamped. Then, by extending the bending mechanism 3 to push the steel bar, the steel bar rotates around the fulcrum of the support cylinder 21 and the first support ring 22 to complete the bending of the steel bar. Since the height of the bending point is fixed and the extending height of the bending mechanism 3 also remains fixed, the bending points of each steel bar can be ensured to be consistent, thereby improving the bending accuracy and enabling the linear shape and hook size of the steel bar 1 to meet the predetermined conditions.

[0026] In a preferred solution, a plurality of first semi-circular grooves 211 matching the steel bar are arranged on the side of the support cylinder 21, and a plurality of second semi-circular grooves 221 matching the steel bar are also arranged on the first support ring 22.

[0027] In a preferred solution, a second support ring 23 is further arranged below the support cylinder 21, and a semi-circular groove matching the steel bar is also arranged on the second support ring 23.

[0028] The support cylinder 21 can also not be arranged on the already completed cast-in-place pile 11. The position of the support cylinder 21 is fixed by the clamping of the support cylinder 21 and the second support ring 23. At this time, the cross-sectional diameter formed by the two semi-circular grooves should be slightly smaller than the diameter of the steel bar 1.

[0029] Both the first support ring 22 and the second support ring 23 are composed of two detachable semi-circles, which is convenient for disassembly.

[0030] The second support ring 23 is used to fix the lower part of the steel bar 1 to prevent the steel bar from deforming during bending.

[0031] In a preferred solution, a groove 212 is arranged above the support cylinder 21, and the rotating mechanism 4 is arranged in the groove 212.

[0032] The purpose of arranging the groove 212 is to reduce the overall height of the bending mechanism 3 and facilitate the carrying of the equipment.

[0033] In a preferred embodiment, the rotating mechanism 4 includes a fixed seat 41 disposed in the groove 212, a through hole 411 is provided in the fixed seat 41; a rotating shaft 42 disposed in the through hole 411; a mounting plate 43 disposed above the rotating shaft 42; and the hydraulic cylinder 31 is mounted on the mounting plate 43.

[0034] In a preferred embodiment, a bearing 44 is provided in the through hole 411, and the rotating shaft 42 is sleeved on the bearing 44.

[0035] In a preferred embodiment, a limiting mechanism 5 is provided on both sides of the first semi-circular groove 211. The limiting mechanism 5 includes a U-shaped frame 51 corresponding to the first semi-circular groove 211; and a fixed shaft 52 provided on the U-shaped frame 51.

[0036] The U-shaped frame 51 can limit the position deviation of the steel bar, and the fixed shaft 52 is equivalent to a limit for the bending direction.

[0037] In a preferred embodiment, a threaded rod 53 is further provided below the U-shaped frame 51, and a corresponding threaded hole is provided in the first support ring 22.

[0038] In this way, the height of the limiting mechanism 5 can be adjusted, which is equivalent to adjusting the bending angle of the steel bar.

[0039] In a preferred embodiment, a mounting seat 24 for supporting the first support ring 22 is further provided on the side surface of the support cylinder 21. A positioning pin 25 is provided on the mounting seat 24, and a matching pin hole is provided in the first support ring 22.

[0040] In this way, the first support ring 22 can be directly placed on the mounting seat 24, omitting part of the installation steps of the equipment, which is equivalent to saving working time.

[0041] The working principle of the equipment is as follows: First, place the support cylinder 21 in the circumference surrounded by the steel bars 1. The first support ring 22 is sleeved on the steel bars 1. At this time, all the steel bars are located in the first semi-circular groove 211 of the support cylinder 21. Then, put on the second support ring 23 and fix it. At this time, move the rotating mechanism 4 so that the U-shaped block 32 on the hydraulic cylinder 31 faces the steel bar 11, and then control the hydraulic cylinder 31 to extend, and the bending of the steel bar 1 can be completed.

[0042] The above embodiments are only the preferred technical solutions of the present invention and should not be regarded as limitations to the present invention. The protection scope of the present invention should be the technical solutions recorded in the claims, including the equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, the equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. A pile head steel bar forming device, characterized in that: The invention comprises a fixing mechanism (2) for fixing a steel bar (1) and a bending mechanism (3) arranged on the fixing mechanism (2) for bending the steel bar (1); the fixing mechanism (2) comprises a support cylinder (21) arranged in a direction of bending the steel bar (1), and a first support ring (22) arranged in the direction of bending the steel bar (1) and corresponding to the upper side of the support cylinder (21); the bending mechanism (3) comprises a rotating mechanism (4) arranged above the support cylinder (21), a hydraulic cylinder (31) arranged on the rotating mechanism (4), and a U-shaped block (32) arranged on an extension shaft of the hydraulic cylinder (31) for clamping the steel bar.

2. A pile head steel bar forming device according to claim 1, characterized in that: A plurality of first semicircular grooves (211) matching the steel bars are provided on the side of the support cylinder (21), and a plurality of second semicircular grooves (221) matching the steel bars are also provided on the first support ring (22).

3. A pile head steel bar forming device according to claim 2, characterized in that: A second support ring (23) is further provided below the support tube (21), and a semicircular groove matching the steel bar is also provided on the second support ring (23).

4. A pile head steel bar forming device according to claim 1, characterized in that: A groove (212) is provided above the support cylinder (21), and the rotating mechanism (4) is arranged in the groove (212).

5. A pile head reinforcement forming device according to claim 4, characterized in that: The rotating mechanism (4) comprises a fixing seat (41) arranged in the groove (212), wherein the fixing seat (41) is provided with a through hole (411); a rotary shaft (42) arranged in the through hole (411); a mounting plate (43) arranged above the rotary shaft (42); and a hydraulic cylinder (31) mounted on the mounting plate (43).

6. A pile head reinforcement forming device according to claim 5, characterized in that: A bearing (44) is arranged in the through hole (411), and the rotary shaft (42) is sleeved on the bearing (44).

7. A pile head reinforcement forming device according to claim 2, characterized in that: Limiting mechanisms (5) are provided on both sides of the first semicircular groove (211), and the limiting mechanisms (5) comprise a U-shaped frame (51) arranged corresponding to the first semicircular groove (211); and a fixed shaft (52) arranged on the U-shaped frame (51).

8. A pile head reinforcement forming device according to claim 7, characterized in that: A threaded rod (53) is further provided below the U-shaped frame (51), and a corresponding threaded hole is provided on the first supporting ring (22).

9. A pile head reinforcement forming device according to claim 4, characterized in that: A mounting seat (24) for supporting the first supporting ring (22) is also provided on the side of the supporting cylinder (21), a positioning pin (25) is provided on the mounting seat (24), and a matching pin hole is provided on the first supporting ring (22).

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