Spot-welding automatic pipe welding device

Abstract

The utility model relates to pipe fitting welding equipment technical field, concretely for spot welding automatic pipe fitting welding device, including support, install motor on the support, the output fixed connection of motor has first belt pulley, the top symmetry of support rotatory connection has two runner, the outside wall of two runner all fixed connection has rubber ring, the outside wall fixed connection of runner has two second belt pulley, the outside wall of first belt pulley and second belt pulley is around and is equipped with conveyer belt, the utility model drives runner rotation through frequency conversion speed regulation motor, utilizes the friction force between rubber ring and pipe fitting and drives pipe fitting automatic, uniform speed rotation, replaces manual rotation operation, avoids the speed fluctuation caused by manual operation, ensures that the weld formation is uniform, and the penetration is consistent, and the welding quality is improved significantly, simultaneously, the labor intensity of operating personnel is reduced in automatic rotation, and the welding efficiency is improved greatly, and the industrial automation level is promoted.

Description

Technical Field

[0001] This utility model relates to the technical field of pipe welding equipment, specifically to an automatic spot welding device for pipe fittings. Background Technology

[0002] In industrial production, pipe welding is a common processing procedure, widely used in pipeline installation, machinery manufacturing, and other fields. Current pipe welding operations largely rely on manual labor: firstly, operators must hold the welding torch while manually rotating the pipe to form a circumferential weld, which is not only labor-intensive but also results in uneven rotation speeds, leading to inconsistent weld widths and penetration depths, thus affecting weld quality; secondly, traditional welding equipment is mostly designed with a fixed rotation speed, unable to adjust the speed according to operator habits, welding materials, and pipe diameter, resulting in poor adaptability; furthermore, existing equipment lacks convenient start-up control methods, often relying on direct power-on start-up, making it difficult to achieve continuous and stable welding with inching triggering, and lacks remote control functionality, resulting in insufficient operational flexibility and inability to meet the needs of complex working environments. Therefore, an automatic spot welding pipe welding device is proposed. Utility Model Content

[0003] In view of this, the present invention provides an automatic spot welding device for pipe fittings to solve or alleviate the technical problems existing in the prior art, and at least provides a beneficial option.

[0004] The technical solution of this utility model is implemented as follows: an automatic spot welding pipe fitting welding device includes a bracket, a motor mounted on the bracket, a first pulley fixedly connected to the output end of the motor, two symmetrical rotating wheels rotatably connected to the top of the bracket, rubber rings fixedly connected to the outer walls of the two rotating wheels, two second pulleys fixedly connected to the outer walls of the rotating wheels, a conveyor belt wound around the outer walls of the first and second pulleys, a rod fixedly connected to one side of the bracket, a connecting plate hinged to the outer wall of the rod, a conductive brush mounted on the top of the connecting plate, a control box mounted on the bracket, a trigger installed inside the control box, a ground wire connected between the trigger and the connecting plate, the ground wire passing through the trigger, and the motor being triggered to rotate when welding current passes through it, and a controller installed inside the control box.

[0005] More preferably, a counterweight is fixedly connected to the bottom of the connecting plate.

[0006] In a further preferred embodiment, one end of the grounding wire is fixedly connected to a conductive brush, and the conductive brush can overlap and contact the pipe to be welded to form a current loop.

[0007] The present invention has the following advantages due to the adoption of the above technical solution:

[0008] This invention uses a variable frequency speed-regulating motor to drive the rotating wheel, and utilizes the friction between the rubber ring and the pipe to drive the pipe to rotate automatically and at a uniform speed, replacing manual rotation operation. This avoids speed fluctuations caused by manual operation, ensures uniform weld formation and consistent penetration depth, and significantly improves welding quality. At the same time, automated rotation reduces the labor intensity of operators, greatly improves welding efficiency, and helps to improve the level of industrial automation.

[0009] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a structural diagram of the present invention;

[0012] Figure 2 This is a side view of the present invention.

[0013] Figure 3 This is a top view of the structure of this utility model;

[0014] Figure 4 This is a structural diagram showing the connection between the control box and the welding machine of this utility model.

[0015] Reference numerals in the attached drawings: 1. Bracket; 2. Motor; 3. First pulley; 4. Rotary wheel; 5. Rubber ring; 6. Conveyor belt; 7. Rod; 8. Connecting plate; 9. Counterweight; 10. Trigger; 11. Ground wire; 12. Second pulley; 13. Conductive brush; 14. Control box; 15. Controller. Detailed Implementation

[0016] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0017] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0018] like Figure 1-4 As shown, this utility model embodiment provides an automatic spot welding device for pipe fittings, including a bracket 1. A motor 2 is mounted on the bracket 1. Two first pulleys 3 are fixedly connected to the output end of the motor 2. Two rotating wheels 4 are symmetrically rotatably connected to the top of the bracket 1. Rubber rings 5 ​​are fixedly connected to the outer walls of the two rotating wheels 4. A second pulley 12 is fixedly connected to the outer walls of the rotating wheels 4. A conveyor belt 6 is wound around the outer walls of the first pulleys 3 and the second pulley 12. A rod 7 is fixedly connected to one side of the bracket 1. A connecting plate 8 is hinged to the outer wall of the rod 7. A conductive brush 13 is mounted on the top of the connecting plate 8. A control box 14 is mounted on the bracket 1. A trigger is installed inside the control box 14. 10. A ground wire 11 is connected between the trigger 10 and the connecting plate 8. The ground wire 11 passes through the trigger 10. When current flows through the welding machine, the motor 2 is triggered to rotate. The controller 15 is installed inside the control box 14. The controller 15 includes a relay, a remote control receiver module, and a variable frequency speed control module. The trigger 10, the relay, and the variable frequency speed control motor 2 are connected in series to form the motor 2 drive circuit. The remote control receiver module is signal-connected to the variable frequency speed control module, and the variable frequency speed control module is electrically connected to the variable frequency speed control motor 2 to control the speed and forward / reverse rotation of the motor 2. The remote control receiver module is equipped with a remote control transmitter, which is used to remotely send forward rotation, reverse rotation, speed adjustment, and stop commands.

[0019] In one embodiment, a counterweight 9 is fixedly connected to the bottom of the connecting plate 8.

[0020] In one embodiment, one end of the ground wire 11 is fixedly connected to the conductive brush 13, and the conductive brush 13 can overlap and contact the pipe to be welded to form a current loop.

[0021] In operation, before use, the pipe fitting is placed on the anti-slip rubber rings 5 ​​of the two rotating wheels 4 to ensure that the pipe fitting axis is horizontal. The operator holds the welding torch and presets the speed and direction of rotation of the motor 2 through the remote control transmitter. When welding starts, the operator contacts the welding nozzle of the welding torch with the welding point of the pipe fitting. At this time, the current forms a closed working circuit through "welding torch - pipe fitting to be welded - conductive brush 13 - ground wire 11". After the trigger 10 detects the DC current in the ground wire 11, the trigger 10 triggers the relay to close, and the motor 2 drive circuit is turned on. The variable frequency speed control motor 2 starts and drives the second pulley 12 and the rotating wheel 4 to rotate through the first pulley 3 and the conveyor belt 6. The anti-slip rubber ring 5 on the rotating wheel 4 drives the pipe to be welded to rotate synchronously and at a uniform speed through friction, allowing the operator to perform continuous and stable spot welding. During the welding process, the operator can adjust the speed of the motor 2 in real time through the remote transmitter, or control the forward and reverse rotation of the motor 2 to adapt to the needs of different welding stages. If welding needs to be paused, simply remove the welding torch, the working circuit will be disconnected, the trigger 10 will have no DC power, the relay will be disconnected, and the motor 2 will stop rotating, realizing the linkage control of inching start and stop. After welding is completed, remove the welding torch, the motor 2 will automatically stop, and the pipe can be removed. Regularly check the wear of the anti-slip rubber ring 5 and the contact status of the conductive brush 13 to ensure stable operation of the device.

[0022] 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 person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all 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. An automatic spot welding device for pipe fittings, characterized in that: The system includes a support (1), on which a motor (2) is mounted. A first pulley (3) is fixedly connected to the output end of the motor (2). Two rotating wheels (4) are symmetrically rotatably connected to the top of the support (1). Rubber rings (5) are fixedly connected to the outer walls of the two rotating wheels (4). Two second pulleys (12) are fixedly connected to the outer walls of the rotating wheels (4). A conveyor belt (6) is wound around the outer walls of the first pulley (3) and the second pulleys (12). A rod (7) is fixedly connected to one side of the support (1). The outer wall of the rod (7) is hinged with a connecting plate (8), and a conductive brush (13) is installed on the top of the connecting plate (8). A control box (14) is installed on the bracket (1). A trigger (10) is installed inside the control box (14). A ground wire (11) is connected between the trigger (10) and the connecting plate (8). The ground wire (11) passes through the trigger (10). When current passes through the welding machine, the motor (2) is triggered to rotate. A controller (15) is installed inside the control box (14).

2. The automatic spot welding pipe fitting welding device according to claim 1, characterized in that: A counterweight (9) is fixedly connected to the bottom of the connecting plate (8).

3. The automatic spot welding pipe fitting welding device according to claim 1, characterized in that: One end of the ground wire (11) is fixedly connected to the conductive brush (13), and the conductive brush (13) can overlap and contact the pipe to be welded to form a current loop.

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