Bent steel bar and round steel plate welding tool

Abstract

The utility model discloses a bending steel bar and round steel plate welding tool which comprises a working table, a rotating disc and steel bar clamping jaws, the rotating disc is rotationally connected to the working table through a rotating shaft, a containing groove for containing a round steel plate is formed in the rotating disc, angle scale marks are arranged on the periphery of the edge of the rotating disc, and a pointer is arranged on the working table. The pointer is close to the scale line and radially points to the center of the turntable; and the steel bar clamping jaw is suspended on the workbench and can clamp two supporting legs of a bent steel bar. A round steel plate is placed in the containing groove, the steel bar clamping jaw clamps the protruding section of the inverted-T-shaped bent steel bar to be in butt joint with the initial welding position of the rotary disc, welding is carried out, rapid and stable welding can be achieved, time and labor are saved, after welding, the rotary disc is rotated, welding of the next bent steel bar at the next circumferential position is achieved, and welding efficiency is improved. The pointer and the scale marks are used for accurately positioning the circumferential angle, and the welding position is accurately positioned.

Description

Technical Field

[0001] This utility model belongs to the field of welding tooling technology, and relates to a welding tooling for bending steel bars and round steel plates. Background Technology

[0002] During the construction of a wastewater treatment plant, when encountering some pre-embedded steel plate structures, such as pre-embedded disc structures, after pre-embedding, there is a need for bent steel bars inside to be welded and fixed to it. The steel bars are formed into a convex shape after being bent vertically four times. When welding the convex-shaped steel bars onto the disc, the first step is to manually mark the lines and then manually align the convex-shaped steel bars with the marked lines for welding. This method is time-consuming and labor-intensive, and the marking is difficult. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a welding fixture for bending steel bars and round steel plates, which can realize welding after the steel bars are installed and fixed, saving time and effort, eliminating the need for marking lines, and improving welding efficiency.

[0004] The technical solution adopted by this utility model is as follows: A welding fixture for bending steel bars and round steel plates includes a worktable, a turntable and steel bar clamps. The turntable is rotatably connected to the worktable via a rotating shaft. The turntable is provided with a placement groove for placing the round steel plate. An angle scale line is provided around the edge of the turntable. A pointer is provided on the worktable. The pointer is close to the scale line and points radially toward the center of the turntable. The steel bar clamps are suspended on the worktable and are capable of clamping the two legs of the bent steel bar.

[0005] Furthermore, the aforementioned steel bar clamp includes a support column, a fixed claw, and a movable claw. The lower end of the support column is fixedly connected to the workbench, and the upper end is fixedly connected to one end of the fixed claw. One end of the movable claw is rotatably connected to one end of the fixed claw via a horizontal axis. After the movable claw rotates and closes with the fixed claw, the other end is fixed with bolts. Two sets of arc-shaped clamping grooves are provided at corresponding positions of the fixed claw and the movable claw. The two sets of arc-shaped clamping grooves clamp the two legs. The symmetrical planes of the two sets of arc-shaped clamping grooves are coplanar with the central axis of the turntable.

[0006] Furthermore, the clamping surfaces of the two sets of arc-shaped clamping grooves are provided with an elastic rubber layer.

[0007] Furthermore, the workbench is provided with radial slots for connecting the support column, the radial slots are arranged facing the center of the turntable, and a stepped threaded rod is provided at the lower end of the support column. The stepped threaded rod passes through the radial slots and is locked with a nut.

[0008] Compared with the prior art, the advantages of this utility model are as follows:

[0009] (1) This utility model places a round steel plate into the placement groove, clamps the protruding section of the U-shaped bent steel bar with the steel bar clamps and connects it to the starting welding position of the turntable and performs welding. This can achieve fast and stable welding, saving time and effort. After welding, the turntable is rotated to achieve welding of the next bent steel bar at the next circumferential position. The pointer and scale line are used for precise positioning of the circumferential angle, and the welding position is accurately positioned.

[0010] (2) The structure of fixed claw and movable claw is adopted. The cantilever structure rotates through a horizontal axis at one end. The two legs of the bent steel bar are fixed and connected to the round steel plate after the movable claw is rotated. The clamping and fixing is convenient and quick, and the disassembly is easy. After the welding of one position is completed, the movable claw is rotated to release the bent steel bar and the turntable is rotated in the opposite direction of the fixed claw to avoid the fixed claw interfering with the turntable. Attached Figure Description

[0011] Figure 1 A front sectional view of the welding fixture for bending steel bars and round steel plates;

[0012] Figure 2 A top view schematic diagram of the welding fixture for bending steel bars and round steel plates;

[0013] Figure 3 This is a schematic diagram of a steel bar clamp structure. Detailed Implementation

[0014] The utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0015] Example 1: As Figures 1-3 As shown, a welding fixture for bending steel bars and round steel plates includes a worktable 1, a turntable 2, and steel bar clamps 3. The turntable 2 is rotatably connected to the worktable 1 via a rotating shaft 4. The turntable 2 is provided with a placement groove 6 for placing the round steel plate 5. Angle scale lines 7 are provided around the edge of the turntable 2. A pointer 8 is provided on the worktable 1. The pointer 8 is close to the scale line 7 and points radially towards the center of the turntable 2. The steel bar clamps 3 are suspended on the worktable 1 and can clamp the two legs of the bent steel bar 9. The rotating shaft 4 is rotatably connected to the center of the worktable 1 via a tapered roller bearing 14, and a worm gear 10 is fixedly connected after the lower end extends out. The worm 11, which cooperates with the worm gear 10, is horizontally rotatably connected to two bearing seats 12, and a rotating handle 13 is fixedly connected after one end extends out of one bearing seat 12. The worm gear adopts a self-locking worm gear structure. By operating the rotating handle, the turntable can be driven to rotate, and the rotation positioning achieves self-locking, resulting in better positioning accuracy.

[0016] The rebar clamp 3 includes a support column 301, a fixed clamp 302, and a movable clamp 303. The lower end of the support column 301 is fixedly connected to the workbench 1, and the upper end is fixedly connected to one end of the fixed clamp 302. One end of the movable clamp 303 is rotatably connected to one end of the fixed clamp 302 via a horizontal shaft 304. After the horizontal shaft 304 of the movable clamp 303 rotates and closes with the fixed clamp 302, the other end is fixed with a bolt 305. Two sets of arc-shaped clamping grooves 306 are provided at corresponding positions of the fixed clamp 302 and the movable clamp 303. The clamping slot 306 clamps two support legs. The symmetrical planes of the two sets of arc-shaped clamping slots 306 are coplanar with the central axis of the turntable 2. It adopts a fixed claw and movable claw structure, and a cantilever structure that rotates at one end through a horizontal axis. The two support legs that fix the bent steel bar are fixed to the round steel plate by rotating the movable claw. The clamping and fixing is convenient and quick, and the disassembly is easy. After completing the welding of one position, the movable claw is rotated to release the clamped bent steel bar, and the turntable is rotated in the opposite direction of the fixed claw to avoid the fixed claw interfering with the rotation of the turntable.

[0017] In order to achieve stable clamping and a certain degree of mobility, the clamping surfaces of the two sets of arc-shaped clamping grooves 306 are provided with elastic rubber layers. The elastic rubber layers, together with the threaded steel bars, can achieve stable clamping, and the elastic rubber layers are also elastic enough to move the steel bars.

[0018] In order to achieve the clamping of steel bars at different positions, the workbench 1 is provided with a radial strip hole 101 for connecting the support column 301. The radial strip hole 101 is arranged facing the center of the turntable 2. A stepped threaded rod 307 is provided at the lower end of the connecting support column 301. The stepped threaded rod 307 passes through the radial strip hole 101 and is locked with a nut 308.

[0019] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A welding fixture for bending reinforcing bars and round steel plates, characterized in that, The device includes a workbench (1), a turntable (2), and a rebar clamp (3). The turntable (2) is rotatably connected to the workbench (1) via a rotating shaft (4). The turntable (2) is provided with a placement groove (6) for placing a round steel plate (5). Angle scale lines (7) are set around the edge of the turntable (2). A pointer (8) is set on the workbench (1). The pointer (8) is close to the scale line (7) and points radially toward the center of the turntable (2). The rebar clamp (3) is suspended on the workbench (1) and has two legs that can clamp the bent rebar (9).

2. The welding fixture for bending reinforcing bars and round steel plates according to claim 1, characterized in that, The steel bar clamp (3) includes a support column (301), a fixed claw (302) and a movable claw (303). The lower end of the support column (301) is fixedly connected to the workbench (1), and the upper end is fixedly connected to one end of the fixed claw (302). One end of the movable claw (303) is rotatably connected to one end of the fixed claw (302) through a horizontal axis (304). After the horizontal axis (304) of the movable claw (303) rotates and closes with the fixed claw (302), the other end is fixed with a bolt (305). Two sets of arc-shaped clamping grooves (306) are provided at corresponding positions of the fixed claw (302) and the movable claw (303). The two sets of arc-shaped clamping grooves (306) clamp the two legs. The symmetrical planes of the two sets of arc-shaped clamping grooves (306) are coplanar with the central axis of the turntable (2).

3. The welding fixture for bending steel bars and round steel plates according to claim 2, characterized in that, The clamping surfaces of the two sets of arc-shaped clamping grooves (306) are provided with an elastic rubber layer.

4. The welding fixture for bending reinforcing bars and round steel plates according to claim 2, characterized in that, The workbench (1) is provided with a radial strip hole (101) for connecting the support column (301). The radial strip hole (101) is arranged facing the center of the turntable (2). A stepped threaded rod (307) is provided at the lower end of the connecting support column (301). The stepped threaded rod (307) passes through the radial strip hole (101) and is locked with a nut (308).

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