Accurate welding device for steel structure beam column joints

Abstract

The utility model discloses a steel structure beam column joint accurate welding device which comprises a bottom plate, a machine frame is welded to the top face of the bottom plate, a servo motor is fixedly installed at the upper end of the surface of one side of the machine frame, a driving gear is installed at the output end of the servo motor, and a lead screw is rotationally connected to the surface of the other side of the machine frame. A driving gear is installed at one end of the lead screw and meshed with the driven gear, a threaded block is used on the surface of the lead screw in a matched mode, a limiting block is welded to the surface of one side of the threaded block, a limiting groove is formed in the surface of the rack, and the limiting block is slidably connected with the limiting groove. According to the utility model, the rotation of the lead screw can be converted into linear motion, and the laser welding nozzle is driven to lift accurately, so that the laser welding nozzle can lift and carry out accurate welding at the joint gap position of the steel structure beam column joint at the same time, the labor amount of a technician is reduced during welding, and the welding effect and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of steel structure welding technology, and in particular to a precision welding device for steel structure beam-column joints. Background Technology

[0002] Large factory buildings, stadiums and other building structures are mainly composed of steel beams, steel columns and steel trusses. Steel trusses are often used for roof structures of buildings because of their light weight and simple construction. They are formed by splicing multiple square steel columns to support the roof structure. Existing steel structure beam-column joints are usually spliced ​​by welding.

[0003] Existing technologies have the following problems:

[0004] When a technician uses a laser welding torch to weld joint gaps, the technician needs to hold the laser welding torch and move it along the joint gap. If the technician cannot maintain a stable speed during this process, the quality of the weld will be inconsistent. Furthermore, when the technician uses the welding torch to weld joint gaps, the welding torch tip needs to maintain the optimal welding distance between the joint gap and the weld nozzle. The quality of the weld is also easily affected by the technician's welding experience.

[0005] To address these shortcomings, we propose a precision welding device for steel structure beam-column joints. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a precise welding device for steel structure beam-column joints.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a precision welding device for steel structure beam-column joints, comprising a base plate, a frame welded to the top surface of the base plate, a servo motor fixedly mounted on the upper end of one side surface of the frame, and a drive gear mounted on the output end of the servo motor; a lead screw rotatably connected to the other side surface of the frame, and a drive gear mounted on one end of the lead screw, with the drive gear meshing with a driven gear; a threaded block fitted on the surface of the lead screw, and a limit block welded to one side surface of the threaded block; a limit groove formed on the surface of the frame, and the limit block slidingly connected to the limit groove; a support plate welded to the other end of the limit block, and a laser welding nozzle detachably mounted on the support plate; a laser welding machine detachably mounted on the top surface of the base plate, and the laser welding machine connected to the laser welding nozzle via a lead wire.

[0008] Preferably, the bottom surface of the base plate is fixedly equipped with self-locking casters, and there are multiple self-locking casters, which are evenly distributed at the four corners of the bottom surface of the base plate.

[0009] Preferably, the top surface of the bottom plate is fixedly provided with a control switch, and the control switch is electrically connected with the servo motor and the laser welding machine through wires.

[0010] Preferably, the limiting groove is arranged along the length direction of the rack.

[0011] Preferably, the lead screw is arranged in parallel with the limiting groove.

[0012] Preferably, the length of the rack is greater than the length of the lead screw.

[0013] Compared with the prior art, the utility model has the advantages that:

[0014] (1), the utility model discloses a lead screw, and the rotation of the lead screw can convert rotary motion into linear motion and drive the laser welding nozzle to accurately ascend and descend, so that the laser welding nozzle can ascend and descend at one side and accurately weld at the interface gap position of the steel structure beam column joint, thereby reducing the labor of the technician during welding, improving welding effect and efficiency.

[0015] (2), the utility model discloses a self-locking universal wheel, and the design of the self-locking universal wheel is favorable to move the whole welding device to a suitable position for welding work, improves the stability during the welding process, prevents redundant movement, and further guarantees welding precision and effect. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below.

[0017] Fig. 1 It is a sectional view of the precise welding device for the steel structure beam column joint.

[0018] Fig. 2 It is an external structure schematic view of the precise welding device for the steel structure beam column joint.

[0019] Fig. 3 It is a side view of the rack.

[0020] LEGEND:

[0021] 1, bottom plate, 2, rack, 3, lead screw, 4, driven gear, 5, servo motor, 6, driving gear, 7, threaded block, 8, limiting block, 9, limiting groove, 10, support plate, 11, laser welding nozzle, 12, lead wire, 13, laser welding machine, 14, control switch, 15, self-locking universal wheel. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific implementation manners and with reference to the drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of the known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0023] Please refer to Figs. 1-3 The utility model provides a kind of accurate welding device of steel structure beam column joint, including bottom plate 1, the top surface welding frame 2 of bottom plate 1, and the surface upper end of one side of frame 2 is fixedly installed with servo motor 5, and servo motor 5's output end is installed with driving gear 6, the other side surface of frame 2 is rotatably connected with lead screw 3, and one end of lead screw 3 is installed with driving gear 6, and driving gear 6 is engaged with driven gear 4, the surface of lead screw 3 is cooperatively used with threaded block 7, and the side surface of threaded block 7 is welded with limit block 8, the surface of frame 2 is provided with limit groove 9, limit block 8 and limit groove 9 are slidably connected, the other end of limit block 8 is welded with support plate 10, and laser welding nozzle 11 is detachably installed on support plate 10, and laser welding nozzle 11 is detachably installed on the top surface of bottom plate 1, and laser welding machine 13 is connected with laser welding nozzle 11 by lead 12.

[0024] When using, rotation can be converted into linear motion by lead screw 3 rotation, and driving laser welding nozzle 11 is accurately lifted, so that laser welding nozzle 11 can be lifted on one side in the interface gap position of steel structure beam column joint, and accurately welded on the other side, reduce the labor amount of technician during welding, improve welding effect and efficiency, adopt self-locking universal wheel 15, the design of self-locking universal wheel 15 is favorable to move the whole welding device to suitable position for welding work, improve stability during welding process, prevent redundant movement, further guarantee welding precision and effect.

[0025] In the embodiment: the bottom surface of bottom plate 1 is fixedly installed with self-locking universal wheel 15, and multiple self-locking universal wheels 15 are evenly distributed at four corners of the bottom surface of bottom plate 1.

[0026] Specifically, improve the convenience when moving, and it is more labor-saving to move and carry.

[0027] In the embodiment: the top surface of bottom plate 1 is fixedly installed with control switch 14, and control switch 14 is electrically connected with servo motor 5 and laser welding machine 13 by wire.

[0028] Specifically, guarantee the normal welding.

[0029] In the embodiment: limit groove 9 is arranged along the length direction of frame 2.

[0030] Specifically, the limiting groove 9 can be arranged on the rack 2.

[0031] In the embodiment, the lead screw 3 is arranged in parallel with the limiting groove 9.

[0032] Specifically, the limiting groove 9 can limit the rotary motion of the lead screw 3, preventing the threaded block 7 from rotating with the lead screw 3.

[0033] In the embodiment, the length of the rack 2 is greater than the length of the lead screw 3.

[0034] Specifically, the lead screw 3 can be installed on the rack 2 for use.

[0035] In the embodiment, the control switch 14 controls the circuit through simple programming by those skilled in the art, which is common knowledge in the art. Only the use is described, and no modification is made. Therefore, the control mode and circuit connection are not described in detail.

[0036] Working principle: in work, the rotary motion of the lead screw 3 can be converted into linear motion, and the laser welding nozzle 11 can be driven to move up and down accurately, so that the laser welding nozzle 11 can move up and down at one side and accurately weld at the interface gap position of the steel structure beam column joint. The labor of the technician is reduced during welding, and the welding effect and efficiency are improved. The self-locking universal wheel 15 is adopted, and the design of the self-locking universal wheel 15 is beneficial to move the whole welding device to the appropriate position for welding work, improve the stability in the welding process, prevent unnecessary movement, and further ensure the welding precision and effect.

[0037] It should be understood that the above specific embodiments of the utility model are only used for example or explanation of the principle of the utility model, and do not constitute the limitation of the utility model. Therefore, any modification, equivalent replacement, improvement, etc. made without deviating from the spirit and scope of the utility model shall be included in the protection scope of the utility model. In addition, the appended claims of the utility model are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. A precision welding device for a steel structural beam column joint comprising a base plate (1), characterized in that, The top surface of the bottom plate (1) is welded with a rack (2), one side surface of the rack (2) is fixedly provided with a servo motor (5) at the upper end, the output end of the servo motor (5) is provided with a driving gear (6), the other side surface of the rack (2) is rotatably connected with a lead screw (3), one end of the lead screw (3) is provided with a driving gear (6), and the driving gear (6) is engaged with a driven gear (4), the surface of the lead screw (3) is cooperatively provided with a threaded block (7), one side surface of the threaded block (7) is welded with a limiting block (8), the surface of the rack (2) is provided with a limiting groove (9), the limiting block (8) is slidably connected with the limiting groove (9), the other end of the limiting block (8) is welded with a supporting plate (10), the supporting plate (10) is detachably provided with a laser welding nozzle (11), the top surface of the bottom plate (1) is detachably provided with a laser welding machine (13), and the laser welding machine (13) is connected with the laser welding nozzle (11) through a lead wire (12).

2. A precision welding apparatus for a steel beam column joint according to claim 1, wherein The bottom surface of the bottom plate (1) is fixedly provided with self-locking universal wheels (15), a plurality of self-locking universal wheels (15) are arranged on the bottom surface of the bottom plate (1) at four corners.

3. The apparatus for precise welding of a beam-column joint of a steel structure according to claim 1, wherein The top surface of the bottom plate (1) is fixedly provided with a control switch (14), and the control switch (14) is electrically connected with the servo motor (5) and the laser welding machine (13) through wires.

4. The apparatus for precise welding of beam-to-column connections of steel structures according to claim 1, characterized in that, The limiting groove (9) is arranged along the length direction of the rack (2).

5. The apparatus for precise welding of beam-to-column connections of steel structures according to claim 1, characterized in that, The lead screw (3) is arranged in parallel with the limiting groove (9).

6. The apparatus for precise welding of a beam-column joint of a steel structure according to claim 1, wherein The length of the rack (2) is greater than the length of the lead screw (3).

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