Automatic welding mechanism for square tube base flange plate

Abstract

The utility model belongs to the technical field of welding equipment, and discloses a square tube base flange plate automatic welding mechanism which comprises a positioning frame arranged on a workbench, and a positioning assembly used for positioning and fixing a square tube is arranged on the workbench. The rotating base is detachably connected with a supporting base arranged on the workbench. The flange plate is positioned on the rotating base and corresponds to the square tube; the positioning head corresponds to the rotating base up and down and is rotationally connected to the workbench, and the positioning head is clamped to the top end of the square tube and used for driving the square tube to rotate on the rotating base; the adjusting mechanism is arranged on the workbench and provided with a welding gun used for welding the square pipe and the flange plate. The automatic welding device is compact in structure, easy to operate, high in adaptability, high in automation degree and capable of achieving automatic welding between the square tube and the flange plate, welding quality is improved, the welding quality problem caused by manual welding is solved, the risk of manual welding is reduced, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to welding equipment technical field, especially, a kind of automatic welding mechanism of square tube base flange. BACKGROUND

[0002] In hardware building materials, photovoltaic support and other industries, the welding operation of square tube base and flange is a common process link.

[0003] Traditional manual welding mode has problems such as low efficiency, unstable weld quality, etc., and it is difficult to meet the demand of large-scale production and high quality requirement;At present, although there are some automatic welding equipment on the market, but there are not many automatic welding mechanisms for the specific structure of square tube base and flange;These devices often have problems such as poor adaptability, complex operation, high maintenance cost, etc., which limit their wide application in industrial production.

[0004] Therefore, the present application designs a kind of automatic welding mechanism of square tube base flange to solve the above technical problems. INVENTION CONTENTS

[0005] To solve the above technical problems, the utility model provides an automatic welding mechanism of square tube base flange.

[0006] To achieve the above purpose, the utility model provides an automatic welding mechanism of square tube base flange, which comprises;

[0007] Positioning frame, the positioning frame is arranged on the workbench, and the workbench is provided with positioning assembly for positioning and fixing square tube;

[0008] Rotary base, the rotary base is detachably connected with the support base arranged on the workbench;The flange is positioned on the rotary base and corresponds to the square tube;

[0009] Positioning head, which is arranged in correspondence with the rotary base and is rotatably connected to the workbench, is clamped at the top end of the square tube and used to drive the square tube to rotate on the rotary base;

[0010] Adjusting mechanism, the adjusting mechanism is arranged on the workbench, and the adjusting mechanism is provided with welding gun for welding square tube and flange.

[0011] Preferably, the rotary base is provided with a positioning groove matched with the flange, and the flange is clamped in the positioning groove.

[0012] Preferably, the positioning assembly comprises a positioning expander fixedly installed on the positioning frame, the output end of the positioning expander faces the square tube, and the output end of the positioning expander is drivingly connected with a positioning fork matched with the square tube.

[0013] Preferably, the top end of the positioning frame is fixedly provided with a plurality of positioning telescopic rods corresponding to the positioning heads, and the output shafts of the positioning telescopic rods are downwardly and drivingly connected with the positioning heads.

[0014] Preferably, the adjusting mechanism comprises a first guide rail arranged on the workbench, a first translation plate slidingly connected with the first guide rail, a second guide rail arranged on the first translation plate and perpendicular to the first guide rail, and a second translation frame slidingly arranged on the second guide rail, and the welding gun is arranged on the second translation frame.

[0015] Preferably, the second translation frame is provided with a fixed welding plate arranged obliquely, a plurality of adjusting telescopic rods are arranged on the fixed welding plate, the adjusting telescopic rods are drivingly connected with a movable welding plate slidingly arranged on the fixed welding plate, and the welding gun is arranged on the movable welding plate.

[0016] Preferably, a deflection seat is rotatably arranged on the movable welding plate, and the welding gun is fixedly arranged on the deflection seat.

[0017] Preferably, a first adjusting motor is arranged on the workbench, a first transmission rod is drivingly connected with the output end of the first adjusting motor, and the first transmission rod is arranged in parallel with the first guide rail and drivingly connected with the first translation plate.

[0018] Preferably, a second adjusting motor is arranged on the first translation plate, a second transmission rod is drivingly connected with the output end of the second adjusting motor and arranged in parallel with the second guide rail, and the second transmission rod is drivingly connected with the second translation frame.

[0019] Preferably, the positioning frame comprises two vertical columns arranged in parallel, a plurality of horizontal columns are arranged between the two vertical columns, and the positioning telescopic rods are fixedly arranged on the horizontal columns.

[0020] Compared with the prior art, the automatic welding mechanism for square tube base flange has the following advantages and technical effects: the positioning frame is arranged on the workbench, the positioning and fixing of the square tube are realized through the positioning assembly, the rotating base is arranged below the positioning frame through the mounting base, the positioning and fixing of the square tube end and the flange are facilitated, the welding gun on the adjusting mechanism can weld the square tube and the flange together, the positioning head rotates on the positioning frame, the square tube and the flange can be driven to rotate when welding, the joints with different angles are welded, the welding quality is guaranteed, the adjusting mechanism can drive the welding gun to follow simultaneously when welding at different angles, the rotation of the square tube is prevented, and the automatic welding is facilitated.

[0021] The utility model discloses compact structure, simple operation, strong adaptability, high degree of automation can realize the automatic welding between square tube and flange plate, improve the welding quality, reduce the welding quality problem caused by manual welding, reduce the risk of manual welding, accelerate production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which form a part of this application, are included to provide a further understanding of the application and are incorporated herein in their entirety. The application illustratively described herein suitably can be practiced in the absence of any element or step not specifically disclosed. The following drawings in which like reference notations are used to indicate similar components are included herewith to facilitate an understanding of the present application.

[0023] Figure 1 It is the front side shaft view of square tube base flange plate automatic welding mechanism of the utility model;

[0024] Figure 2 It is the rear side shaft view of square tube base flange plate automatic welding mechanism of the utility model;

[0025] Figure 3 It is the front view of square tube base flange plate automatic welding mechanism of the utility model;

[0026] Figure 4 It is the side view of square tube base flange plate automatic welding mechanism of the utility model;

[0027] Figure 5 It is the plan view of square tube base flange plate automatic welding mechanism of the utility model;

[0028] Figure 6 It is the schematic diagram of final product of the utility model;

[0029] Figure 7 It is the utility model Figure 2 It is the partial enlarged view of A of the utility model;

[0030] In the drawing: 1, square tube;2, flange plate;3, ear;4, workbench;5, positioning frame;6, rotating base;7, support base;8, positioning head;9, positioning groove;10, positioning expander;11, positioning fork;12, positioning telescopic rod;13, first guide rail;14, first translation plate;15, second guide rail;16, second translation frame;17, welding gun;18, fixed welding plate;19, adjusting telescopic rod;20, movable welding plate;21, deflection seat;22, first adjusting motor;23, first transmission rod;24, second adjusting motor;25, second transmission rod;26, stand column;27, cross column;28, control module;29, top groove;30, knee plate. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of the present application.

[0032] The application adopts PLC and corresponding detection sensors and execution elements to realize automation, wherein the PLC (Programmable Logic Controller) is one of the core devices for realizing industrial automation control. The PLC realizes automation control of industrial equipment through programming and is widely applied in manufacturing, process control, building automation and other fields. The following are the basic steps and key elements of PLC realizing automation control:

[0033] 1. Determine control requirements

[0034] Firstly, the specific requirements of the automation control system need to be determined, including the equipment to be controlled, the process flow, the type of input and output signals (such as digital quantity, analog quantity), control logic, etc.

[0035] 2. Select PLC model

[0036] According to the control requirements, select the appropriate PLC model. The selection of PLC should consider the following factors:

[0037] Input and output points: select the appropriate number of points according to the I / O requirements of the system.

[0038] Processing speed: select the appropriate processor speed according to the complexity of the control logic and the real-time requirements.

[0039] Communication capability: consider whether communication with the host computer, other PLCs or other devices is required.

[0040] Expansion capability: consider whether the I / O points or functional modules need to be increased in the future.

[0041] Environmental adaptability: consider the working environment of the PLC (such as temperature, humidity, electromagnetic interference, etc.).

[0042] 3. Design the control system

[0043] 3.1 Input and output design

[0044] Input signals: such as buttons, sensors, switches, etc.

[0045] Output signals: such as relays, indicator lights, motor starters, etc.

[0046] 3.2 Ladder Diagram Programming

[0047] There are multiple programming languages for PLCs, with Ladder Diagram (LD) being the most commonly used. Ladder Diagram uses symbols and logic similar to relays to represent control logic.

[0048] 3.3 Function Block Design

[0049] For complex control systems, control logic can be broken down into multiple function blocks, each implementing a specific control function.

[0050] 4. Hardware Connection

[0051] According to the design, physically connect the PLC with input and output devices (such as sensors, actuators). This includes wiring, configuring I / O modules, etc.

[0052] 5. Programming and Debugging

[0053] 5.1 Programming

[0054] Use PLC programming software (such as Siemens Step7, Mitsubishi GXDeveloper, etc.) to write ladder diagram programs or other control logic.

[0055] 5.2 Simulation Testing

[0056] Test the program in a simulation environment to ensure that the logic is correct.

[0057] 5.3 On-site Debugging

[0058] Download the program to the PLC and debug it on the actual equipment. During debugging, the program may need to be modified to solve problems encountered during actual operation.

[0059] 6. System Integration and Testing

[0060] Integrate the PLC control system with other automation systems (such as SCADA systems, MES systems) for overall testing to ensure stable system operation.

[0061] 7. Maintenance and Optimization

[0062] PLC control systems need regular maintenance and optimization during operation, including:

[0063] Troubleshooting: Timely handle system failures to ensure normal production.

[0064] Program optimization: Optimize control logic based on running data and feedback to improve system efficiency.

[0065] Hardware Maintenance: Regularly check the status of PLC and its peripherals, and perform necessary repairs or replacements.

[0066] 8. Training and Documentation

[0067] Provide necessary training for operators and maintenance personnel to ensure they are familiar with the operation and maintenance methods of the PLC control system. At the same time, establish a complete documentation system to record system configuration, program, fault handling scheme, etc.

[0068] Through the above steps, PLC can efficiently realize automatic control, improve production efficiency, reduce labor cost, and improve product quality.

[0069] This application uses a stepper motor, which is an electric motor that converts electrical pulse signals into corresponding angular displacement or linear displacement. Here is a detailed introduction to the stepper motor:

[0070] I. Definition and Alias

[0071] Stepper motor, also known as pulse motor, is an inductive motor. It converts electrical energy into mechanical energy based on electromagnetism principles.

[0072] II. Working Principle

[0073] The working principle of stepper motor is based on electromagnet principle, that is, it is a freely rotating electromagnet, whose action principle is to rely on the change of air gap permeance to generate electromagnetic torque. Every input pulse signal, the rotor of stepper motor will rotate a fixed angle (called step angle) or move forward one step. The output angular displacement or linear displacement is proportional to the input pulse number, and the rotation speed is proportional to the pulse frequency.

[0074] III. Types and Characteristics

[0075] Stepper motors are mainly divided into permanent magnet type (PM), reaction type (VR) and hybrid type (HB). Among them, hybrid stepper motor combines the advantages of permanent magnet type and reaction type, and is the most widely used. Stepper motor has the following characteristics:

[0076] Good data control characteristics: Stepper motor is a device that converts electrical pulses into discrete mechanical motion, with good data control characteristics.

[0077] High control accuracy: Stepper motor can realize open-loop position control, with very small position error (less than 1 / 10 degree) and no accumulation.

[0078] No need for gearbox: Stepper motor can run smoothly at very low speed without adjusting the gearbox, while outputting large torque, avoiding power loss and angular position deviation.

[0079] Long service life: The brushless design of the stepper motor ensures a long service life of the motor.

[0080] Four, control mode

[0081] The control of the stepper motor is usually achieved by generating control pulses through a program and driving hardware circuits. The single-chip microcomputer controls the stepper motor through software, which can better tap the potential of the motor. The operation of the stepper motor generally goes through three stages of acceleration, constant speed, and deceleration, requiring the acceleration and deceleration process time to be as short as possible and the constant speed time to be as long as possible.

[0082] Five, application field

[0083] The stepper motor is favored for its precise control characteristics and wide application field. It is widely used in robots and automation systems, numerical control machine tools, printers, medical devices, aerospace equipment, entertainment and game devices, and education and research fields. For example, in industrial robots, the stepper motor can accurately control the speed and direction of the robot's movement; in numerical control machine tools, the stepper motor is used to control the movement of the tool or workbench to achieve high-precision machining of workpieces.

[0084] Six, matters needing attention

[0085] Low-frequency vibration: Stepper motors are prone to low-frequency vibration at low speeds, which is detrimental to the normal operation of the machine. Therefore, during low-speed operation, damping technology should be used to overcome the low-frequency vibration phenomenon.

[0086] Overload capacity: Stepper motors generally do not have overload capacity, so when selecting a motor, the load situation needs to be considered to avoid torque waste.

[0087] In summary, the stepper motor is a motor with precise control characteristics and a wide range of applications. With the development of microelectronics and computer technology, the control method of the stepper motor will be more intelligent and diversified, and its application in various fields will be more extensive and in-depth.

[0088] The existing patent No. CN202123021705.6 discloses an automatic welding machine for square pipes and flanges, which includes a welding table, fixed supports installed on both sides of the upper end of the welding table, positioning clamps installed on the fixed supports, pipe materials installed on the positioning clamps, flanges installed on the pipe material bottom through limiting blocks corresponding to the welding table position, and limiting blocks detachably installed on the welding table to satisfy the installation and fixation of the welding disc position. A set of longitudinal sliding tables and a set of transverse sliding tables are installed at the diagonal positions of the welding table to effectively weld the connection position of the flange and the pipe material.

[0089] The longitudinal shaft welding gun is installed on the longitudinal sliding table respectively, and is used for realizing the welding effect in the longitudinal direction of the whole welding assembly.

[0090] The transverse shaft welding gun is installed on the transverse sliding table respectively, and is used for realizing the welding effect in the transverse direction of the whole welding assembly.

[0091] The original point switch is further installed on the longitudinal sliding table, and is used for realizing the original point reset effect of the longitudinal sliding table.

[0092] The longitudinal shaft welding gun and the transverse shaft welding gun are respectively connected with the wire feeder through the wire feeding pipe, the wire feeder is provided with a wire feeding disc for winding the welding wire, and specifically, through the cooperation of the wire feeder and the wire feeding disc, the effective wire feeding effect of the welding gun is realized, and the welding needs are met.

[0093] The display screen is further installed on the welding table, and is used for the motion parameter adjustment effect of the longitudinal sliding table and the transverse sliding table by the worker.

[0094] Another patent No. CN202120217254.4 discloses a kind of automatic welding device of flange plate, including track, still including the first welding mechanism of being fixed in one end of track, the second welding mechanism of being movably arranged in the other end of track, and first support table and second support table between first welding mechanism and second welding mechanism, first support table is close to first welding mechanism, and fixedly arranged in one end of track, second support table is close to second welding mechanism, and can slide on track by the wheel of bottom portion;

[0095] The first welding mechanism includes a fixed workbench and a first welding assembly fixed on the upper part of the fixed workbench.

[0096] The second welding mechanism includes a movable workbench and a second welding assembly fixed on the upper part of the movable workbench.

[0097] The first welding assembly and the second welding assembly are the same structure and are symmetrically arranged on the track.

[0098] The first welding assembly includes a guide rod fixed vertically on the movable workbench, a sleeve is sleeved on the guide rod, a screw with its axis pointing to the axis of the sleeve is arranged on the wall of the sleeve, the outer wall of the sleeve is provided with a first guide rod arranged horizontally, the first guide rod is provided with a first light rod driver, the first light rod driver is installed with a first fine adjuster on the upper part, the first fine adjuster is installed with a second fine adjuster on the upper part, the second fine adjuster is installed with a first clamp on the upper part, the first clamp is clamped with a first welding head, the first welding head is connected with a welding machine, and by adjusting each component, the first welding head is aligned with the flange plate outside the welding seam.

[0099] The first welding assembly further comprises a second guide rail vertically fixed on the upper portion of the moving workbench, a second light rod driver is installed on the second guide rail, a third fine adjuster is installed on the second light rod driver, a fourth fine adjuster is installed on the third fine adjuster, a second clamp is installed on the fourth fine adjuster, and a second welding head is clamped on the second clamp; the second welding head is connected with the welding machine, and the second welding head is aligned with the inner side welding seam of the flange plate by adjusting the components;

[0100] The first fine adjuster and the third fine adjuster are the same in structure, the second fine adjuster and the fourth fine adjuster are the same in structure, the first fine adjuster comprises a first shell, a first screw rod is rotationally arranged in the first shell, a first screw sleeve is arranged on the first screw rod, one end of the first screw sleeve extends out of a first guide straight slot formed in the first shell and is connected with the second fine adjuster, the second fine adjuster comprises a second shell, a second screw rod is rotationally arranged on the second shell, a second screw sleeve is arranged on the second screw rod, one end of the second screw sleeve extends out of a second guide straight slot formed in the second shell and is connected with the second clamp, and in addition, one end of the first screw rod and one end of the second screw rod are respectively provided with a rotating knob a.

[0101] In addition, the first screw rod and the first guide straight slot are in the same direction, and the second screw rod and the second guide straight slot are in the same direction.

[0102] The moving workbench and the fixed workbench are provided with a first limiting rotating wheel and a second limiting rotating wheel, the first limiting rotating wheel and the second limiting rotating wheel are vertical shafts, and the bottom of the outer side surface of the flange plate at both ends of the pipe body is in abutment with the first limiting rotating wheel and the second limiting rotating wheel.

[0103] The first support table comprises a first support shell, two first rotating wheels with parallel shafts are installed on the upper portion of the first support shell, and the two first rotating wheels are symmetrically arranged on the track.

[0104] The second support table comprises a second support shell, two second rotating wheels with parallel shafts are installed on the upper portion of the second support shell, a driving wheel is installed on the upper portion of the first support shell between the two second rotating wheels, the outer circumferential surfaces of the driving wheel and the two second rotating wheels are in close contact, and the driving wheel is connected with a second motor installed in the second support shell; a layer of rubber layer is arranged on the outer circumferences of the first rotating wheel, the second rotating wheel and the driving wheel.

[0105] In order to make the above-mentioned purposes, characteristics and advantages of the utility model more obvious and easy to understand, the utility model will be further described in detail in combination with the drawings and specific embodiments.

[0106] Referring to Figures 1-7 The embodiment provides a square pipe base flange plate automatic welding mechanism which comprises;

[0107] The positioning frame 5 is arranged on the workbench 4, and the workbench 4 is provided with a positioning assembly for positioning and fixing the square pipe 1.

[0108] The rotating base 6 is detachably connected with the supporting base 7 arranged on the workbench 4; the flange plate 2 is positioned on the rotating base 6 and corresponds to the square tube 1;

[0109] The positioning head 8 is arranged in correspondence with the rotating base 6 in up and down directions and is rotationally connected to the workbench 4; the positioning head 8 is clamped to the top end of the square tube 1 and is used to drive the square tube 1 to rotate on the rotating base 6.

[0110] The adjusting mechanism is arranged on the workbench 4 and is provided with the welding gun 17 used for welding the square tube 1 and the flange plate 2.

[0111] The positioning frame 5 is arranged on the workbench 4 and realizes positioning and fixing of the square tube 1 through the positioning assembly; the rotating base 6 is arranged below the positioning frame 5 through the mounting base, which facilitates positioning and fixing of the square tube 1 end and the flange plate 2 and facilitates the welding gun 17 on the adjusting mechanism to weld the square tube 1 and the flange plate 2 together; the positioning head 8 rotates on the positioning frame 5 and drives the square tube 1 and the flange plate 2 to rotate when welding, so as to weld the joints of different angles and ensure the welding quality; meanwhile, the adjusting mechanism can synchronously drive the welding gun 17 to follow when welding at different angles, so as to prevent the welding gun 17 from affecting the rotation of the square tube 1 and facilitate automatic welding. The utility model discloses the compact structure, simple operation, strong adaptability, high degree of automation, can realize the automatic welding between the square tube 1 and the flange plate 2, improves the welding quality, reduces the welding quality problem caused by manual welding, reduces the risk of manual welding and speeds up the production efficiency.

[0112] In an embodiment of the present application, the workbench 4 is provided with a control module 28 for controlling automatic operation of the device.

[0113] In an embodiment of the present application, the supporting base 7 has power and can rotate under the driving of the control module 28, thereby welding the square tube 1 and the flange plate 2 at different angles.

[0114] In an embodiment of the present application, the supporting base 7 can be a stepping motor and can rotate the square tube 1 and the flange plate 2 at a fixed angle.

[0115] In an embodiment of the present application, the core of the control module 28 is a PLC with a programming function, which can program the entire production process according to production needs and control the entire welding process to be automatically performed according to the set program.

[0116] Further optimization scheme, the rotating base 6 is provided with a positioning groove 9 matched with the flange plate 2, and the flange plate 2 is clamped in the positioning groove 9. The positioning groove 9 is arranged on the rotating base 6, and is used for clamping and positioning the flange plate 2, so that the misplacement during welding is prevented.

[0117] In an embodiment of the present application, the back side of the positioning groove 9 is not limited, so that the horizontal welding of the flange plate 2 is facilitated, and the flange plate 2 can be horizontally slid out after welding.

[0118] Further optimization scheme, the positioning assembly comprises a positioning telescopic device 10 fixedly installed on the positioning frame 5, an output end of the positioning telescopic device 10 faces the square tube 1, and a positioning fork 11 matched with the square tube 1 is in transmission connection with the output end of the positioning telescopic device 10. The positioning telescopic device 10 is installed on the positioning frame 5, can drive the positioning fork 11 to move towards or away from the square tube 1, realizes the positioning of the square tube 1, and also can realize the positioning of the square tube 1 during welding, so that the rotation of the square tube 1 during welding is avoided; when positioning, the output end of the positioning telescopic device 10 is elongated, and the square tube 1 is clamped by the positioning fork 11; after one side welding is completed, the output end of the positioning telescopic device 10 is shortened, so that the square tube 1 is released by the positioning fork 11, and the angle adjustment of the square tube 1 is facilitated.

[0119] Further optimization scheme, the positioning frame 5 is fixedly installed at the top end of a plurality of positioning telescopic rods 12 correspondingly arranged with the positioning head 8, and an output shaft of the positioning telescopic rod 12 faces downward and is in transmission connection with the positioning head 8. The positioning telescopic rod 12 is installed at the top end of the positioning frame 5, the output end thereof faces downward and can drive the positioning head 8 to ascend and descend, so that the square tube 1 can be positioned between the positioning head 8 and the rotating base.

[0120] In an embodiment of the present application, the positioning head 8 is rotatably arranged at the output end of the positioning telescopic rod 12, so that the fixed square tube 1 and the flange plate 2 can be rotated between the positioning head 8 and the rotating base.

[0121] Further optimization scheme, the adjusting mechanism includes a first guide rail 13 arranged on the workbench 4, a first translation plate 14 slidably connected to the first guide rail 13, a second guide rail 15 arranged perpendicularly to the first guide rail 13 on the first translation plate 14, a second translation frame 16 slidably arranged on the second guide rail 15, and a welding gun 17 arranged on the second translation frame 16; a first adjusting motor 22 is arranged on the workbench 4, an output end of the first adjusting motor 22 is transmissionally connected with a first transmission rod 23, the first transmission rod 23 is arranged in parallel with the first guide rail 13 and is transmissionally connected with the first translation plate 14; a second adjusting motor 24 is arranged on the first translation plate 14, an output end of the second adjusting motor 24 is transmissionally connected with a second transmission rod 25 arranged in parallel with the second guide rail 15, and the second transmission rod 25 is transmissionally connected with the second translation frame 16. The first adjusting motor 22 drives the first translation plate 14 to translate through the first transmission rod 23, and the second adjusting motor 24 drives the second translation plate to translate on the second guide rail 15 through the second transmission rod 25, so that the two can translate on the plane of the workbench 4, the position of the welding gun 17 is adjusted, and the welding gun 17 can weld the two groups of square tubes 1 on the workbench 4.

[0122] In an embodiment of the present application, the first adjusting motor 22 and the second adjusting motor 24 are step motors, which can conveniently and accurately control the position of the welding gun 17 under the drive of the control module 28.

[0123] Further optimization scheme, the second translation frame 16 is arranged with a fixed welding plate 18 arranged obliquely, a plurality of adjusting telescopic rods 19 are arranged on the fixed welding plate 18, the adjusting telescopic rods 19 are transmissionally connected with a movable welding plate 20 slidably arranged on the fixed welding plate 18, and the welding gun 17 is mounted on the movable welding plate 20. The fixed welding plate 18 is obliquely fixed to the second translation frame 16 on the side of the square tube 1, so that the welding position of the welding gun 17 is positioned and welded with the positions of the square tube 1 and the flange plate 2; the adjusting telescopic rods 19 can slide through the movable welding plate 20 slidably connected to the fixed welding plate 18, so as to adjust the position of the welding gun 17, and facilitate the welding gun 17 to approach or close to the welding position.

[0124] Further optimization scheme, the movable welding plate 20 is rotationally arranged with a deflection seat 21, and the welding gun 17 is fixedly mounted on the deflection seat 21. The deflection seat 21 is rotationally connected to the movable welding plate 20 and can be automatically or manually adjusted, so as to adjust the angle of the welding gun 17 and facilitate the welding; meanwhile, after being adjusted to the position, the deflection seat 21 can be locked to avoid deflection caused by welding and improve the welding precision.

[0125] Further optimization scheme, positioning frame 5 includes two parallel arranged stand 26, two stand 26 between arranged with several cross column 27, positioning telescopic device 10 fixedly installed on cross column 27. Two stand 26 parallel arrangement on the workbench 4, cross column 27 through the knee plate 30 is installed between two stand 26, for installing positioning telescopic device 10.

[0126] In one embodiment of the application, the top of two stand 26 between the setting of slot type top slot 29, positioning telescopic rod 12 is installed in top slot 29.

[0127] In the description of the present application, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application.

[0128] The above-described embodiments are only preferred modes of the present application, and do not limit the scope of the present application. Without departing from the design spirit of the present application, various modifications and improvements to the technical solutions of the present application made by those skilled in the art shall fall within the protection scope determined by the claims of the present application.

Claims

1. An automatic welding mechanism for a square tube base flange, characterized in that: include; A positioning frame (5), wherein the positioning frame (5) is arranged on a workbench (4), and a positioning component for positioning and fixing the opposite tube (1) is arranged on the workbench (4); A rotating base (6), the rotating base (6) being detachably connected to a supporting base (7) provided on the workbench (4); the flange (2) being positioned on the rotating base (6) and corresponding to the square tube (1); A positioning head (8) is provided correspondingly to the rotating base (6) above and below and is rotatably connected to the workbench (4); the positioning head (8) is clamped on the top end of the square tube (1) and is used to drive the square tube (1) to rotate on the rotating base (6); An adjusting mechanism is provided on the workbench (4), and a welding gun (17) for welding the square tube (1) and the flange (2) is provided on the adjusting mechanism.

2. The square tube base flange automatic welding mechanism according to claim 1, characterized in that: The rotating base (6) is provided with a positioning groove (9) adapted to the flange (2), and the flange (2) is clamped in the positioning groove (9).

3. The square tube base flange automatic welding mechanism according to claim 1, characterized in that: The positioning assembly comprises a positioning telescope (10) fixedly mounted on the positioning frame (5), the output end of the positioning telescope (10) facing the square tube (1), and the output end of the positioning telescope (10) is transmission-connected to a positioning fork (11) adapted to the square tube (1).

4. The automatic welding mechanism for square tube base flange according to claim 3, characterized in that: A plurality of positioning telescopic rods (12) corresponding to the positioning heads (8) are fixedly mounted on the top of the positioning frame (5); the output shafts of the positioning telescopic rods (12) are downwardly directed and are in transmission connection with the positioning heads (8).

5. The square tube base flange automatic welding mechanism according to claim 1, characterized in that: The adjustment mechanism comprises a first guide rail (13) arranged on the workbench (4), a first translation plate (14) is slidably connected to the first guide rail (13), a second guide rail (15) perpendicular to the first guide rail (13) is arranged on the first translation plate (14), a second translation frame (16) is slidably arranged on the second guide rail (15), and the welding gun (17) is arranged on the second translation frame (16).

6. The square tube base flange automatic welding mechanism according to claim 5, characterized in that: The second translation frame (16) is provided with a tilted fixed welding plate (18), and the fixed welding plate (18) is provided with a plurality of adjustable telescopic rods (19). The adjustable telescopic rods (19) are transmission-connected to a movable welding plate (20) slidably provided on the fixed welding plate (18), and the welding gun (17) is mounted on the movable welding plate (20).

7. The automatic welding mechanism for square tube base flange according to claim 6, characterized in that: A deflection seat (21) is rotatably provided on the movable welding plate (20), and the welding gun (17) is fixedly mounted on the deflection seat (21).

8. The automatic welding mechanism for square tube base flange according to claim 5, characterized in that: A first adjusting motor (22) is provided on the workbench (4); an output end of the first adjusting motor (22) is transmission-connected to a first transmission rod (23); the first transmission rod (23) is arranged parallel to the first guide rail (13) and is transmission-connected to the first translation plate (14).

9. The square tube base flange automatic welding mechanism according to claim 8, characterized in that: A second adjustment motor (24) is provided on the first translation plate (14); an output end of the second adjustment motor (24) is transmission-connected to a second transmission rod (25) arranged parallel to the second guide rail (15); and the second transmission rod (25) is transmission-connected to the second translation frame (16).

10. The automatic welding mechanism for square tube base flange according to claim 4, characterized in that: The positioning frame (5) comprises two parallel upright posts (26), a plurality of transverse posts (27) are arranged between the two upright posts (26), and the positioning telescopic device (10) is fixedly mounted on the transverse posts (27).

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