Steel bar head welding device

Abstract

The utility model discloses a steel bar head welding device which comprises a welding machine and a welding clamp. The welding clamp comprises a middle connecting base, a head connecting base and a tail connecting base. A steel bar head fixing seat I and a steel bar head fixing seat II are arranged between the middle connecting seat and the head connecting seat; the steel bar head fixing seat I is connected with the head connecting seat; the reinforcing steel bar head fixing seat II is propped against the middle connecting seat; a group of pressing and clamping screw rods penetrate through the tops of the steel bar head fixing seat I and the steel bar head fixing seat II; a movable pressing and clamping block is arranged at the front end of the pressing and clamping screw; the steel bar head fixing base I and the steel bar head fixing base II are each internally provided with a set of fixing pressing and clamping blocks. The rebar head fixing seat II is connected with a pull rod; the pull rod penetrates through the middle connecting seat and the tail connecting seat and is hinged with a pull handle; the pull handle is hinged with the tail connecting seat; and a spring is arranged between the middle connecting seat and the tail connecting seat. The device can clamp two groups of steel bars when welding equipment is used, manual hand holding is not needed, the efficiency is high, the completion quality is good, and potential safety hazards cannot be caused.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel bar welding auxiliary devices, and in particular relates to a steel bar head welding device. Background Art

[0002] Rebar is a common industrial material, commonly used in machinery, construction and other fields. Among them, the steel keel is a common supporting structure in infrastructure. When making a steel keel, the steel bar needs to be pulled out from the wire coil and straightened by a straightening machine, and then the production staff will make the steel bar into a steel keel. In order to maintain the continuity of the production process, the steel bar requires continuous delivery, but the length of the steel bar is certain. When one end of the steel bar is sent forward to the end, the front end of the next steel bar needs to be welded to its end. The traditional process is to use manual welding. The welding efficiency and quality vary from person to person, which sometimes leads to a long welding time, affecting production efficiency. At the same time, the welding quality cannot be guaranteed, and it is easy to have problems such as fracture of the welding part, which affects the quality of the steel keel. At present, high-temperature welding equipment is mostly used for welding of steel bar heads. Its advantage is that the high temperature makes the steel bar head melt to a high degree, and the two sections of steel are firmly connected. However, it is necessary to manually hold the two sections of the steel bar head until it cools and welds, which causes a waste of manpower and also brings certain safety hazards to the operator holding the steel bar. At the same time, once the force of squeezing the two sections of the steel bar head by hand is insufficient or shaking, it will also affect the welding quality. Utility Model Content

[0003] The purpose of the utility model is to propose a steel bar head welding device to solve the problems in the prior art, such as low efficiency and unstable quality of manual welding of steel bars, the need for manual gripping of steel bars by welding equipment, which brings potential safety hazards, and hand shaking or subtle movements affecting welding quality. The device can clamp two groups of steel bars when using welding equipment, without manual gripping, high efficiency, good quality, and no potential safety hazards.

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

[0005] A steel bar head welding device comprises a welding machine and a welding fixture; the welding fixture is arranged on the welding machine; the welding fixture comprises a middle connecting seat, a head connecting seat and a tail connecting seat; a steel bar head fixing seat I and a steel bar head fixing seat II are arranged between the middle connecting seat and the head connecting seat; the steel bar head fixing seat I is fixedly connected to the head connecting seat; the steel bar head fixing seat II abuts against the middle connecting seat and corresponds to the steel bar head fixing seat I; the steel bar head fixing seat I and the steel bar head fixing seat II are both "C" shaped structures surrounded on three sides and open on one side; between the steel bar head fixing seat I and the steel bar head fixing seat II A group of clamping screws are passed through the top of the fixing seat II in the form of threaded connection; a movable clamping block is provided at the front end of the clamping screw; a group of fixed clamping blocks corresponding to the movable clamping blocks are respectively provided in the openings of the steel bar head fixing seat I and the steel bar head fixing seat II; the steel bar head fixing seat II is connected with a pull rod; a through groove I is provided on the middle connecting seat, and a through groove II is provided on the tail connecting seat; the pull rod passes through the through groove I and penetrates into the through groove II; the pull rod is hinged with a pull handle in the through groove II; the pull handle is hinged to the tail connecting seat; a spring is provided between the middle connecting seat and the tail connecting seat.

[0006] The welding machine is a common fusion welding equipment, which can melt metal for welding; the steel bar head fixing seat I is fixed; the steel bar head fixing seat II can move together with the middle connecting seat; a group of steel bars can be placed in the opening positions of the steel bar head fixing seat I and the steel bar head fixing seat II respectively, and fixed together with the fixed clamping block by the movable clamping block; the steel bars placed should be steel bars that have been hot-melted by the welding machine, and when placed, one steel bar can be extended to a certain length so that the two groups of steel bars overlap and contact, which is convenient for connection; after the clamping screw is rotated, it drives the movable clamping block to move up and down, which can cooperate with the fixed clamping block The block loosens and clamps the steel bar; the handle is swung, and the handle rotates around the hinged position with the tail connecting seat, and the front end pulls the pull rod together with the steel bar head fixing seat II away from the steel bar head fixing seat I, and the middle connecting seat also moves toward the tail connecting seat; then the hot-melted steel bar head can be clamped on the steel bar head fixing seat I and the steel bar head fixing seat II; after letting go, the spring pushes the tail connecting seat together with the steel bar head fixing seat II back, so that the steel bar head clamped on the steel bar head fixing seat II is in close contact with the steel bar head clamped on the steel bar head fixing seat I, and the welding of the two sections of steel bar heads is completed after a few seconds.

[0007] As a further technical improvement, it also includes guide posts; one end of the two groups of guide posts is connected to the head connection seat, the middle part passes through the middle connection seat, and the other end is connected to the tail connection seat. The guide posts play a connecting and guiding role, so that the middle connection seat moves along the guide posts.

[0008] As a further technical improvement, the front end of the pull handle is provided with a bent connection part; the front end of the bent connection part is hinged to the pull rod, the middle part is hinged to the tail connection seat, and the tail part is connected to the pull handle. The bent connection part is bent and then connected to the pull rod, which is conducive to rotating the pull handle to pull out the pull rod to a greater extent.

[0009] As a further technical improvement, a screw handle is hingedly connected to the top of the clamping screw, and the screw handle is used to rotate the clamping screw.

[0010] As a further technical improvement, the tops of the steel bar head fixing seat I and the steel bar head fixing seat II are both provided with screw seats; the screw seats are provided with screw holes; and the clamping screw matches and passes through the screw holes on the screw seats.

[0011] As a further technical improvement, the fixed clamp block is provided with a steel bar placement groove, which is used to place steel bars.

[0012] As a further technical improvement, the welding machine is provided with a welding gun, which is the working part of the welding machine and is used to generate high temperature and weld steel bars.

[0013] The method for using the above-mentioned steel bar head welding device is as follows:

[0014] When in use, the pull handle is swung to make the pull rod move the steel bar head fixing seat II and the middle connecting seat toward the tail connecting seat, at which time the spring is compressed; the steel bar head fixing seat II is separated from the steel bar head fixing seat I, and the clamping screw is turned to raise the movable clamping block; the two groups of steel bar heads to be welded are heated to half-melted by the welding machine, so that the steel bar heads reach a suitable welding state; then the two groups of steel bar heads are placed on the fixed clamping blocks of the steel bar head fixing seat I and the steel bar head fixing seat II respectively; the clamping screw is rotated to press the movable clamping block downward, so that the movable clamping block and the corresponding fixed clamping block clamp the steel bar head together; then the pull handle is released, and the spring pushes out the middle connecting seat and the steel bar head fixing seat II, so that the steel bar head fixing seat II presses the steel bar head fixing seat I, so that the steel bars clamped on the steel bar head fixing seat I and the steel bar head fixing seat II are contacted, and a certain pressure is maintained for a suitable period of time under the action of the spring; at this time, the steel bar heads at both ends can be firmly welded and fixed; finally, the clamping screw is turned to raise the movable clamping block, and the welded steel bars can be removed.

[0015] The technical solution of the utility model has the following beneficial effects:

[0016] 1. The utility model device can respectively clamp a half-melted steel bar by the welding machine through the steel bar head fixing seat I and the steel bar head fixing seat II, and press them through the spring, so that the two steel bars are in close contact and welded together, ensuring the welding effect, and no manpower is required to hold them continuously, which reduces manpower and eliminates the safety hazard of being burned by holding.

[0017] 2. The pull handle of the utility model is hinged to the pull rod through a bending connection part, and the middle part of the bending connection part is hinged to the tail connection seat, so that the pull rod together with the steel bar head fixing seat II can be easily brought out by the swinging pull handle, with a simple structure and good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is the overall structural diagram of this device.

[0019] Figure 2 It is a structural schematic diagram of the connection between the bent connection part, the pull rod and the handle.

[0020] Figure markings: 1-welding machine, 2-middle connecting seat, 3-head connecting seat, 4-tail connecting seat, 5-rebar head fixing seat I, 6-rebar head fixing seat II, 7-fixed clamping block, 8-screw seat, 9-clamping screw, 10-screw handle, 11-movable clamping block, 12-rebar placement groove, 13-through groove I, 14-pull rod, 15-spring, 16-guide column, 17-through groove II, 18-pull handle, 19-bending connection part, 20-welding gun. DETAILED DESCRIPTION

[0021] The utility model will be further described below in conjunction with the accompanying drawings.

[0022] Embodiment 1:

[0023] like Figures 1-2 As shown, a steel bar head welding device comprises a welding machine 1 and a welding fixture; the welding fixture is arranged on the welding machine 1; the welding fixture comprises a middle connecting seat 2, a head connecting seat 3 and a tail connecting seat 4; a steel bar head fixing seat Ⅰ5 and a steel bar head fixing seat Ⅱ6 are arranged between the middle connecting seat 2 and the head connecting seat 3; the steel bar head fixing seat Ⅰ5 is fixedly connected to the head connecting seat 3; the steel bar head fixing seat Ⅱ6 is against the middle connecting seat 2 and corresponds to the steel bar head fixing seat Ⅰ5; the steel bar head fixing seat Ⅰ5 and the steel bar head fixing seat Ⅱ6 are both "C" shaped structures surrounded on three sides and opened on one side; at the top of the steel bar head fixing seat Ⅰ5 and the steel bar head fixing seat Ⅱ6 They all pass through a group of clamping screws 9 in the form of threaded connection; a movable clamping block 11 is provided at the front end of the clamping screw 9; a group of fixed clamping blocks 7 corresponding to the movable clamping block 11 are respectively provided in the openings of the steel bar head fixing seat Ⅰ5 and the steel bar head fixing seat Ⅱ6; the steel bar head fixing seat Ⅱ6 is connected with a pull rod 14; the middle connecting seat 2 is provided with a through groove Ⅰ13, and the tail connecting seat 4 is provided with a through groove Ⅱ17; the pull rod 14 passes through the through groove Ⅰ13 and penetrates into the through groove Ⅱ17; the pull rod 14 is hinged with a pull handle 18 in the through groove Ⅱ17; the pull handle 18 is hinged to the tail connecting seat 4; a spring 15 is provided between the middle connecting seat 2 and the tail connecting seat 4.

[0024] It also includes guide columns 16; one end of the two groups of guide columns 16 is connected to the head connecting seat 3, the middle part passes through the middle connecting seat 2, and the other end is connected to the tail connecting seat 4.

[0025] The front end of the handle 18 is provided with a bent connection portion 19 ; the front end of the bent connection portion 19 is hinged to the pull rod 14 , the middle portion is hinged to the tail connection seat 4 , and the tail portion is connected to the handle 18 .

[0026] A screw handle 10 is hinged on the top of the clamping screw 9 .

[0027] The tops of the steel bar head fixing seats Ⅰ5 ​​and Ⅱ6 are both provided with screw seats 8; the screw seats 8 are provided with screw holes; the clamping screws 9 match and pass through the screw holes on the screw seats 8.

[0028] The method of using the utility model is as follows:

[0029] When in use, swing the pull handle 18 so that the pull rod 14 moves the steel bar head fixing seat Ⅱ6 and the middle connecting seat 2 toward the tail connecting seat 4, and the spring 15 is compressed at this time; the steel bar head fixing seat Ⅱ6 is separated from the steel bar head fixing seat Ⅰ5, and the clamping screw 9 is rotated to raise the movable clamping block 11; the two groups of steel bar heads to be welded are heated to semi-molten by the welding machine 1, so that the steel bar heads reach a suitable welding state; then the two groups of steel bar heads are placed on the fixed clamping blocks 7 of the steel bar head fixing seat Ⅰ5 and the steel bar head fixing seat Ⅱ6 respectively; the clamping screw 9 is rotated to move the movable clamping block 11 toward Press down so that the movable clamping block 11 and the corresponding fixed clamping block 7 clamp the steel bar head together; then release the handle 18, the spring 15 pushes out the middle connecting seat 2 and the steel bar head fixing seat Ⅱ6, so that the steel bar head fixing seat Ⅱ6 presses the steel bar head fixing seat Ⅰ5, allowing the steel bars clamped on the steel bar head fixing seat Ⅰ5 and the steel bar head fixing seat Ⅱ6 to contact each other, and maintain a certain pressure for a suitable period of time under the action of the spring 15; at this time, the steel bar heads at both ends can be firmly welded and fixed; finally, turn the clamping screw 9 to raise the movable clamping block 11, and the welded steel bars can be removed.

[0030] Embodiment 2:

[0031] The difference between this embodiment and the first embodiment is that a steel bar placement groove 12 is provided on the fixed clamping block 7 .

[0032] The method of use of this embodiment is the same as that of embodiment 1.

[0033] Embodiment 3:

[0034] The difference between this embodiment and embodiment 2 is that the welding machine 1 is provided with a welding gun 20 .

[0035] The method of use of this embodiment is the same as that of embodiment 1.

[0036] Embodiment 4:

[0037] The difference between this embodiment and the third embodiment is that the fixed clamp block 7 is provided with a steel bar placement groove 12. The welding machine 1 is provided with a welding gun 20.

[0038] The method of use of this embodiment is the same as that of embodiment 1.

[0039] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Personnel in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

[0040] In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inside", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0041] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Claims

1. A steel bar head welding device, characterized in that: The invention comprises a welding machine (1) and a welding fixture; the welding fixture is arranged on the welding machine (1); the welding fixture comprises a middle connecting seat (2), a head connecting seat (3) and a tail connecting seat (4); a steel bar head fixing seat I (5) and a steel bar head fixing seat II (6) are arranged between the middle connecting seat (2) and the head connecting seat (3); the steel bar head fixing seat I (5) is fixedly connected to the head connecting seat (3); the steel bar head fixing seat II (6) abuts against the middle connecting seat (2) and corresponds to the steel bar head fixing seat I (5); The steel bar head fixing seat I (5) and the steel bar head fixing seat II (6) are both "C" shaped structures surrounded on three sides and open on one side; a group of clamping screws (9) are passed through the top of the steel bar head fixing seat I (5) and the steel bar head fixing seat II (6) in the form of threaded connection; a movable clamping block (11) is provided at the front end of the clamping screw (9); a group of fixed clamping blocks (7) corresponding to the movable clamping block (11) are respectively provided in the openings of the steel bar head fixing seat I (5) and the steel bar head fixing seat II (6); The steel bar head fixing seat II (6) is connected with a pull rod (14); the middle connecting seat (2) is provided with a through slot I (13), and the tail connecting seat (4) is provided with a through slot II (17); the pull rod (14) passes through the through slot I (13) and enters the through slot II (17); the pull rod (14) is hinged with a pull handle (18) in the through slot II (17); the pull handle (18) is hinged with the tail connecting seat (4); A spring (15) is provided between the middle connecting seat (2) and the tail connecting seat (4).

2. The steel bar head welding device according to claim 1, characterized in that: It also includes guide columns (16); one end of the two groups of guide columns (16) is connected to the head connecting seat (3), the middle part passes through the middle connecting seat (2), and the other end is connected to the tail connecting seat (4).

3. The steel bar head welding device according to claim 1, characterized in that: The front end of the handle (18) is provided with a bent connection portion (19); the front end of the bent connection portion (19) is hinged to the pull rod (14), the middle portion is hinged to the tail connection seat (4), and the tail portion is connected to the handle (18).

4. The steel bar head welding device according to claim 1, characterized in that: A screw handle (10) is hinged on the top of the clamping screw (9).

5. The steel bar head welding device according to claim 1, characterized in that: The tops of the steel bar head fixing seat I (5) and the steel bar head fixing seat II (6) are both provided with screw seats (8); the screw seats (8) are provided with screw holes; the clamping screw (9) matches and passes through the screw holes on the screw seats (8).

6. The steel bar head welding device according to claim 1, characterized in that: The fixed clamping block (7) is provided with a steel bar placement groove (12).

7. The steel bar head welding device according to claim 1, characterized in that: The welding machine (1) is provided with a welding gun (20).

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