A welding auxiliary device for building joint connecting steel plate

Abstract

This utility model relates to the field of building construction, and more particularly to a welding auxiliary device for connecting steel plates in building joints. It includes a movable base, a first mounting frame on top of the movable base, and a first drive assembly located on the upper front side of the movable base, to the right of the first mounting frame. The first drive assembly includes a worm gear motor, a lead screw rotatably connected within the first mounting frame, a worm wheel at the bottom of the lead screw, and the worm wheel meshing with the worm. A connector is slidably connected to the first mounting frame, threadedly connected to the lead screw, and a mounting bracket is mounted on top of the connector. This utility model uses a contact plate to firmly clamp a reference steel plate, and a dual-roller synchronous drive system to actively transport and guide a second steel plate, forcibly achieving rapid and precise right-angle positioning of the two plates. This significantly improves the joint fitting accuracy and welding efficiency, enhances operational convenience, allows a single person to complete the positioning of the two plates, shortens the construction cycle, and reduces the weld defect rate.

Description

Technical Field

[0001] This utility model relates to the field of building construction, and in particular to a welding auxiliary device for connecting steel plates in building gaps. Background Technology

[0002] In the construction of traditional steel structure joints, it is often necessary to precisely adjust two steel plates (such as vertical and horizontal steel plates) to a 90° perpendicular position before welding. This process often relies on manual operation, such as using jacks to push and correct the angle, repeatedly calibrating the angle with a straightedge, or manually fixing with simple clamps. However, manual operation has problems such as low angle adjustment accuracy, easy displacement of steel plates, and difficulty for a single person to simultaneously fix and fine-tune. Especially for large or heavy steel plates, the operation is laborious and unstable, resulting in uneven weld gaps, which leads to large fluctuations in welding quality and high rework rates. Existing simple positioning devices lack the ability to actively feed plates and synchronously position them, making it difficult to efficiently achieve integrated positioning assistance for vertical joints.

[0003] Therefore, in order to address the above problems, a welding auxiliary device for connecting steel plates in building joints is now being developed. Utility Model Content

[0004] In order to overcome the shortcomings of existing simple positioning devices that lack active plate feeding and synchronous positioning capabilities, making it difficult to efficiently achieve integrated positioning assistance for vertical gaps, this utility model provides an automatic clamping device for connecting steel plates in building gaps.

[0005] The technical implementation scheme of this utility model is as follows: a welding auxiliary device for connecting steel plates in building joints, comprising a movable base, a first mounting frame on the top of the movable base, a first driving assembly on the upper front side of the movable base, the first driving assembly being located on the right side of the first mounting frame, the first driving assembly including a worm motor, a lead screw rotatably connected inside the first mounting frame, a worm wheel at the bottom of the lead screw meshing with the worm, a connector slidably connected to the first mounting frame, the connector being threadedly connected to the lead screw, a mounting frame mounted on the top of the connector, two symmetrically arranged connecting plates on the mounting frame, a contact plate installed between the rear sides of the connecting plates, the contact plate being used to contact the steel plate, an mounting component at the lower part of the connector being connected to the mounting frame, two second mounting frames mounted on the mounting frame, a second driving assembly being arranged between the second mounting frames, a transmission roller rotatably connected to the mounting frame, the transmission roller being used to contact another steel plate and guide and position it.

[0006] More preferably, the worm motor is composed of a worm and a motor working together.

[0007] More preferably, the contact plate is equipped with a handle, which facilitates overall control by the operator.

[0008] More preferably, each of the drive rollers is provided with anti-slip grooves.

[0009] More preferably, the transmission roller is provided with driven gears on both its upper and lower sides and on the output shaft of the second drive assembly, and two adjacent driven gears mesh with each other.

[0010] By adopting the above technical solution, compared with the prior art, this utility model has the following advantages:

[0011] This invention uses a contact plate to firmly clamp the reference steel plate, and a dual-roller synchronous drive system to actively transport and guide the second steel plate, thereby forcing the two plates to be positioned at a right angle quickly and accurately. The worm gear transmission ensures stable lifting and positioning, and the anti-slip rollers rotate synchronously to avoid steel plate deviation. This significantly improves the accuracy of gap joining and welding efficiency, enhances the ease of operation, and allows a single person to complete the positioning of the two plates, shortening the construction cycle and reducing the weld defect rate. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0013] Figure 2 This is a schematic diagram of the first type of partially exploded three-dimensional structure of this utility model.

[0014] Figure 3 This is a schematic diagram of the second type of partially exploded three-dimensional structure of this utility model.

[0015] Figure 4 This is a partial cross-sectional structural diagram of the present invention.

[0016] The meanings of the reference numerals in the figure are as follows: 1. Movable base; 2. First mounting frame; 3. First drive assembly; 31. Worm motor; 32. Worm wheel; 33. Lead screw; 4. Connector; 5. Mounting bracket; 6. Connecting plate; 7. Contact plate; 8. Mounting component; 9. Second mounting frame; 10. Second drive assembly; 11. Follower gear; 12. Transmission roller. Detailed Implementation

[0017] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0018] A welding auxiliary device for connecting steel plates in building joints, such as Figures 1-4As shown, the device includes a movable base 1, a first mounting frame 2 on the top of the movable base 1, and a first drive assembly 3 on the upper front side of the movable base 1. The first drive assembly 3 is located on the right side of the first mounting frame 2 and includes a worm motor 31, which consists of a worm and a motor. A lead screw 33 is rotatably connected inside the first mounting frame 2, and a worm wheel 32 is provided at the bottom of the lead screw 33, meshing with the worm. A connector 4 is slidably connected to the first mounting frame 2, and the connector 4 is threadedly connected to the lead screw 33. A mounting bracket 5 is mounted on the top of the connector 4, and two symmetrical connecting plates 6 are provided on the mounting bracket 5. A contact plate 7 is installed between the rear sides. The contact plate 7 is used to contact the steel plate. The contact plate 7 has a handle, which facilitates the operator to control the whole. A mounting part 8 is provided at the lower part of the connector 4. The mounting part 8 is connected to the mounting frame 5. Two second mounting frames 9 are installed on the mounting frame 5. A second drive assembly 10 is provided between the second mounting frames 9. A transmission roller 12 is rotatably connected to the mounting frame 5. Each transmission roller 12 is provided with an anti-slip groove. The transmission roller 12 is used to contact another steel plate and guide and position it. Both the upper and lower sides of the transmission roller 12 and the output shaft of the second drive assembly 10 are provided with driven gears 11. Two adjacent driven gears 11 mesh with each other.

[0019] It should be noted that when the device is in operation, the operator first pushes the movable base 1 to the position where the steel plate needs to be connected. The operator then grasps the handle on the contact plate 7 to move the device to the construction position. Subsequently, the worm motor 31 of the first drive assembly 3 is started. The motor drives the worm to rotate. Since the worm meshes with the worm wheel 32 fixed at the bottom of the lead screw 33, the rotation of the worm drives the worm wheel 32 and causes the lead screw 33, which is vertically set within the first mounting frame 2, to rotate synchronously. The connecting piece 4, through its internal threaded hole, forms a threaded transmission pair with the rotating lead screw 33. Simultaneously, under the sliding guide constraint of the first mounting frame 2, the connecting piece 4 drives the rotation of the lead screw 33. This is transformed into precise up-and-down lifting motion, causing the rear working surface of the contact plate 7 to tightly and stably press against the first steel plate (usually a reference steel plate or vertical steel plate used for gap connection). The plane of the contact plate 7 effectively restricts the degree of freedom of movement of the steel plate in the plane, providing a reference positioning. Next, the crucial positioning and guidance of the second steel plate is required. The second drive assembly 10 mounted on the mounting frame 5 is activated. The output shaft of the second drive assembly 10 drives a driven gear 11 mounted on it to rotate. Since the two drive rollers 12 symmetrically arranged on the upper and lower parts of the mounting frame 5 are both fixed with driven gears 11 on their ends, and the two sets of driven gears at the top and bottom of the mounting frame 5 are also connected... The gears 11 mesh with each other to form a transmission chain. The second drive assembly 10 drives any output shaft to rotate from the driven gear 11, which forces all meshing driven gears 11 to rotate synchronously. This drives the upper and lower drive rollers 12 to rotate at completely synchronized speeds. The surface of the drive rollers 12 is provided with anti-slip grooves to increase friction. When the operator puts the second steel plate into contact with the drive roller 12, the drive roller 12 conveys the steel plate through the anti-slip grooves on its surface. The friction force drives the steel plate to move horizontally and longitudinally. The operator precisely controls the speed and direction of the drive rollers 12 through the second drive assembly 10 to continuously and smoothly push the second steel plate and accurately deliver it to the predetermined contact position. In this process, the drive roller 12 not only provides power transmission, but its rigid roller body also serves as a guide and limiter, ensuring that the steel plate moves in a straight line in the horizontal plane and preventing deviation. When the second steel plate is pushed to the edge of the first steel plate, which has been firmly positioned by the contact plate 7, the device achieves a precise 90-degree vertical position relationship between the two steel plates because they are intersecting at right angles. At this time, the gap formed by the two steel plates is stable, the gap width is uniform and meets the welding requirements. The operator can then perform precise positioning welding or continuous welding on the T-shaped or L-shaped connection gap formed with the two steel plates fixed perpendicularly to each other.

[0020] Although this disclosure has been shown and described with reference to specific exemplary embodiments thereof, those skilled in the art will understand that various changes in form and detail may be made to this disclosure without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents. Therefore, the scope of this disclosure should not be limited to the above embodiments, but should be defined not only by the appended claims, but also by their equivalents.

Claims

1. A welding aid for building joint connecting steel sheets, characterized by: The system includes a movable base (1), a first mounting frame (2) on the top of the movable base (1), a first drive assembly (3) on the upper front side of the movable base (1), the first drive assembly (3) being located on the right side of the first mounting frame (2), the first drive assembly (3) including a worm motor (31), a lead screw (33) rotatably connected inside the first mounting frame (2), a worm wheel (32) at the bottom of the lead screw (33), the worm wheel (32) meshing with the worm, a connector (4) slidably connected to the first mounting frame (2), the connector (4) being threadedly connected to the lead screw (33), the connector... The connector (4) is equipped with a mounting frame (5) on top. The mounting frame (5) is provided with two symmetrical connecting plates (6) on top and bottom. A contact plate (7) is installed between the rear sides of the connecting plates (6). The contact plate (7) is used to contact the steel plate. The connector (4) is provided with a mounting component (8) at the bottom. The mounting component (8) is connected to the mounting frame (5). The mounting frame (5) is equipped with two second mounting frames (9). A second drive assembly (10) is provided between the second mounting frames (9). A drive roller (12) is rotatably connected to the mounting frame (5). The drive roller (12) is used to contact another steel plate and guide and position it.

2. The welding aid for building joint connecting steel plates according to claim 1, characterized in that: The worm motor (31) is composed of a worm and a motor.

3. The welding aid for building joint connecting steel plates according to claim 1, characterized in that: The contact plate (7) has a handle, which facilitates overall control by the operator.

4. The welding aid for building joint connecting steel plates according to claim 1, characterized in that: Each of the drive rollers (12) is provided with anti-slip grooves.

5. The welding aid for building joint connecting steel plates according to claim 1, characterized in that: The transmission roller (12) is provided with a driven gear (11) on both its upper and lower sides and on the output shaft of the second drive assembly (10), and two adjacent driven gears (11) mesh with each other.

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