Automatic welding equipment for barrier gate rod handle head

Abstract

The invention provides automatic welding equipment for a barrier gate rod handle head, which comprises a rotary working table rotatably arranged on a machine base; the positioning mechanism is fixedly arranged at the rotating center of the rotating worktable and is used for radially positioning the barrier gate rod handle head base and the sleeve piece which are overlapped and sleeved; the pressing execution mechanism is arranged on the machine base and located above the rotary workbench, and the pressing execution mechanism is provided with a pressing end capable of performing linear motion towards the positioning mechanism so as to axially press and fix the sleeve part on the base before welding; the welding executing mechanism is arranged on the machine base and located above the rotary workbench, and the welding executing mechanism is provided with a welding output end capable of doing linear motion towards the positioning mechanism and used for welding a joint circular seam between the base and the sleeve piece in the pressing state; and the rotary driving mechanism is arranged on the machine base, is in transmission connection with the rotary workbench and is used for driving the rotary workbench and driving the workpiece on the rotary workbench to rotate around the axis of the positioning mechanism at a constant speed during welding.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and specifically to an automatic welding device for the handle head of a barrier gate. Background Technology

[0002] In the assembly and manufacturing process of barrier gate arms, the handles at both ends are typically fixed by welding together a base and a sleeve. Traditional welding methods mostly rely on manual operation or semi-automatic equipment. Usually, operators need to manually align the base and sleeve, stack them on a simple fixture, and then use a welding torch or a simple welding robotic arm to weld around the joint seam of the workpiece. This operating mode has significant shortcomings: First, manual positioning makes it difficult to ensure precise alignment of the two workpieces radially and axially, easily leading to welding deviations; second, the lack of stable and reliable axial clamping force allows for slight displacement or deformation between the sleeve and the base under the influence of welding heat input, resulting in uneven welds, unevenness, or localized incomplete fusion, directly affecting the structural robustness and sealing of the product. Furthermore, the entire welding process is labor-intensive and inefficient, and the welding quality is highly dependent on the operator's skill level, making standardized, high-quality mass production difficult. Therefore, there is an urgent need for specialized equipment that can automatically complete precise positioning, stable clamping, and high-quality circumferential welding.

[0003] Therefore, the present invention proposes an automatic welding device for the gate arm handle. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention proposes an automatic welding device for barrier gate arm handles, which achieves automatic and precise positioning, stable clamping, and high-quality circumferential welding of barrier gate arm handle components, significantly improving production efficiency and product consistency.

[0005] The technical solution of this invention is implemented as follows: An automatic welding device for the handle of a barrier gate includes a base; A rotary worktable is rotatably mounted on the machine base and is used to support and drive the workpiece to rotate. The positioning mechanism is fixedly installed in the rotation center area of ​​the rotary worktable and is used to radially position the stacked gate arm handle base and sleeve. A clamping actuator is mounted on the machine base and located above the rotary table. The clamping actuator has a clamping end that can move linearly toward the positioning mechanism to axially clamp and fix the sleeve to the base before welding. A welding actuator is mounted on the base and located above the rotary table. The welding actuator has a welding output end that can move linearly toward the positioning mechanism and is used to weld the joint circumferential seam between the base and the sleeve in the clamped state. A rotary drive mechanism is mounted on the machine base and is connected to the rotary worktable for transmission. It is used to drive the rotary worktable during welding and cause the workpiece on the rotary worktable to rotate at a constant speed around the axis of the positioning mechanism.

[0006] Preferably, the rotary drive mechanism includes a drive motor located below the base, and the rotary worktable is connected to the output shaft of the drive motor via a rotating shaft passing through the base.

[0007] Preferably, the output shaft of the drive motor is connected to the rotating shaft via a belt drive assembly or a gear drive assembly.

[0008] Preferably, the clamping actuator includes a first linear driver and a pressure head mounted on its movable end; the welding actuator includes a second linear driver and a welding torch mounted on its movable end.

[0009] Preferably, both the first linear actuator and the second linear actuator are cylinders, hydraulic cylinders, or electric actuators.

[0010] Preferably, it further includes a mounting base, which is fixed to the machine base and spans across the rotary table. The clamping actuator and the welding actuator are mounted on the mounting base at radial intervals along the rotary table.

[0011] Preferably, the positioning mechanism includes a positioning post whose diameter matches the inner hole of the base and the inner hole of the sleeve.

[0012] Preferably, the positioning post is provided with multiple levels of bosses coaxially along its length.

[0013] Preferably, it also includes a control system, which is signal-connected to the rotary drive mechanism, the pressing actuator and the welding actuator, and is used to control the automatic sequential execution of the pressing, rotating and welding processes.

[0014] Compared with the prior art, the present invention has the following advantages.

[0015] This invention effectively solves the technological challenges of welding the boom handle through integrated mechanical and automated design. Its working principle is as follows: First, the operator sequentially places the base and sleeve onto the positioning mechanism at the center of the rotating worktable. This mechanism, through its structure (such as multi-stage positioning columns), ensures precise radial alignment between the two. Then, the clamping end of the clamping actuator extends linearly, axially and firmly clamping the sleeve onto the base, eliminating assembly gaps between components and providing a stable foundation for welding. After the welding program is started, the rotary drive mechanism drives the rotating worktable to rotate at a uniform speed, while the welding output end of the welding actuator outputs welding energy, performing a one-time, continuous weld around the joint circumferential seam between the workpieces under clamping conditions. The beneficial effects of this solution are mainly reflected in the following aspects: 1) Quality improvement: The precise radial positioning and reliable axial clamping work together to ensure that the relative position of the workpiece is fixed during the welding process, thereby obtaining a uniform, flat, and uneven annular weld, which greatly improves the connection strength and sealing performance; 2) Efficiency and automation: The entire "positioning-clamping-rotation-welding" process can be completed automatically in sequence (especially when a control system is included). Compared with manual operation, the welding speed and consistency are greatly improved, reducing the dependence on skilled workers and making it suitable for mass production; 3) Structural stability: The clamping and welding actuators are integrated into one unit by mounting the base and span across the worktable. The structure is compact and rigid, ensuring the positional accuracy and stability of the actuators during long-term operation. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of an automatic welding device for a barrier gate arm handle according to the present invention; Figure 2 This is a schematic diagram showing the working state of an automatic welding device for a barrier gate arm handle according to the present invention. Figure 3 This is a schematic diagram of the head workpiece; Figure reference numerals: 1-Base; 2-Rotary worktable; 21-Rotating shaft; 3-Positioning mechanism; 31-Positioning column; 311-Boss; 4-Pressure actuator; 41-First linear actuator; 42-Pressure head; 5-Welding actuator; 51-Second linear actuator; 52-Welding torch; 6-Rotary drive mechanism; 61-Drive motor; 62-Transmission belt; 7-Mounting base; 8-Control system; 9-Sleeve fitting; 10-Base. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," "third," and "fourth," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] Regarding the composition of the component to be welded: such as Figure 3 As shown, the barrier gate arm handle targeted by this equipment typically consists of two main metal components. The first is a base 10, generally a flange-shaped base or a base with mounting holes and an axial inner hole in the center. The second is a sleeve 9, usually a section of round pipe, one end of which is welded to the base 10, and the other end is used to connect to the barrier gate arm body. The inner diameter of the sleeve 9 matches the outer diameter of the central hole of the base 10 or the outer diameter of a specially designed boss. During assembly, the sleeve 9 is fitted onto the corresponding part of the base 10, with their end faces contacting or forming a ring-shaped joint to be welded. The purpose of this equipment is to achieve automated, high-quality welding of the circumferential joint between these two components. It is worth noting that in existing technologies, welding such circumferential fillet welds or end-joint circumferential welds often results in uneven weld formation, inconsistent penetration depth, and even defects such as incomplete penetration and undercut due to poor workpiece concentricity, insufficient or uneven axial clamping force, seriously affecting structural strength and service life. This equipment is designed systematically to fundamentally solve these problems.

[0022] This embodiment proposes an automatic welding device for the gate arm handle head, used to reliably weld the base 10 and the sleeve 9 of the gate arm handle head assembly into one piece. For example... Figures 1-2 As shown, the device includes: The base 1, serving as the supporting frame for the entire equipment, possesses sufficient structural rigidity and stability. It is typically a frame structure welded from shaped steel (such as square steel or channel steel) or cast iron. The interior or lower part of the base 1 is designed with ample space to accommodate the drive components, and its top provides a flat mounting surface for supporting and installing all other functional components. To ensure overall stability, leveling feet can be installed at the bottom of the base 1. Furthermore, the frame of the base 1 may be designed with crisscrossing reinforcing ribs to suppress vibrations that may occur during equipment operation, especially during the start-up and shutdown of the rotary drive mechanism 6, ensuring overall dynamic stability. The sides or rear of the base 1 typically feature an electrical control cabinet mounting area, as well as standardized cable trays or cable chain channels for threading power cables, control cables, and pneumatic / hydraulic pipelines, enabling neat and safe wiring.

[0023] A rotary worktable 2 is rotatably mounted on the upper surface of the machine base 1, serving to support and drive the workpiece (i.e., the fitted base 10 and sleeve 9) to rotate. Specifically, the rotary worktable 2 is rotatably mounted on the machine base 1 via its lower rotating shaft 21 and matching rotating support components (such as flange bearings, crossed roller bearings, etc.). High-precision, high-rigidity crossed roller bearings or double-direction thrust angular contact ball bearings are preferred, as they can simultaneously withstand axial loads, radial loads, and overturning moments, making them ideal for the rotary worktable 2, which bears both the workpiece and clamping force (axial) while ensuring radial runout under high-speed rotation. The rotating shaft 21 is fixed to the machine base 1 via a bearing housing and extends downwards through the worktable surface of the machine base 1, connecting to the drive mechanism below. The upper surface of the rotary worktable 2 is a precision-machined (e.g., ground) flat disc, which may have mounting holes or threaded holes that mate with the positioning mechanism 3, facilitating workpiece placement, alignment, and rapid positioning. To ensure rotational accuracy, a sealing ring can be installed between the rotary table 2 and the base 1 to prevent dust and splashes from entering the bearings. Furthermore, an encoder or positioning pin, read by a photoelectric sensor or proximity switch, can be installed on the edge of the rotary table 2 to cooperate with the control system 8 to achieve precise closed-loop control of the rotation angle or zero-position calibration, ensuring that the start and end points of each welding operation accurately coincide.

[0024] The positioning mechanism 3 is fixedly installed in the rotation center area of ​​the rotary worktable 2. Its core function is to ensure that the base 10 and the sleeve 9 maintain precise radial alignment when stacked, which is a prerequisite for obtaining a uniform circumferential weld. In this embodiment, the positioning mechanism 3 specifically includes a positioning post 31 vertically fixed to the center of the rotary worktable 2. The positioning post 31 can be fixed to the rotary worktable 2 by means of threaded connection or interference fit. In order to ensure that the rotation axis of the positioning post 31 is strictly coaxial with that of the rotary worktable 2, its mounting hole needs to be precision machined together with the rotary worktable 2, and a positioning stop can be designed. The diameter of the positioning post 31 needs to be precisely matched with the inner hole of the base 10 and the inner hole of the sleeve 9 to achieve radial positioning. Furthermore, in order to accommodate the structure that the base 10 and the sleeve 9 usually have different inner diameters, the positioning post 31 is provided with multiple levels of bosses 311 coaxially along its length. For example, the lower boss with a larger diameter matches the inner hole of the base 10, while the upper boss with a smaller diameter matches the inner hole of the sleeve 9. This stepped design essentially constitutes a "disposable" precision combination fixture. The operator only needs to sequentially insert the workpieces to complete the positioning, completely eliminating manual alignment errors. This stepped design allows two workpieces to be accurately fitted onto their corresponding boss sections in sequence, automatically achieving concentric alignment. Compared to traditional manual scribing or simple fixture alignment, accuracy and efficiency are significantly improved. The top of the positioning post 31 is usually machined with an inlet chamfer or tapered surface to facilitate quick insertion of the workpiece. The positioning post 31 can be made of wear-resistant alloy steel (such as GCr15, Cr12MoV) and subjected to quenching and low-temperature tempering heat treatment to improve surface hardness and wear resistance, extending service life. In an optional embodiment, the positioning post 31 can be designed as a quick-change structure, fixed to the rotary table 2 by a tapered locking sleeve or quick-release bolt, so as to quickly replace the entire set of positioning posts 31 according to different workpiece models, improving equipment flexibility.

[0025] A clamping actuator 4 is mounted on the base 1 and located above the rotary table 2. This mechanism has a clamping end that can move linearly toward the positioning mechanism 3. Its core function is to apply a stable, adjustable axial pressure to the sleeve 9 before welding begins, tightly pressing it against the end face of the base 10 to eliminate assembly gaps between them, and maintaining this clamping state throughout the welding process to resist thermal deformation. Specifically, the clamping actuator 4 includes a first linear actuator 41 (e.g., a cylinder, hydraulic cylinder, or electric actuator) as a power source and a pressure head 42 mounted on the movable end of its piston rod or actuator. If a cylinder is used, a precision pressure regulating valve and a pressure gauge can be connected to its air circuit to accurately set and maintain the clamping force; if an electric actuator is used, its output force and stroke can be controlled by programming the control system 8. The first linear actuator 41 is fixed by a mounting bracket. The pressure head 42 constitutes the clamping end. Its end facing the workpiece can be designed as an arc-shaped surface adapted to the curvature of the outer wall of the sleeve 9 to increase the contact area, prevent damage to the workpiece surface, and ensure uniform pressure distribution. A spring or floating structure can be installed inside the pressure head 42 to compensate for minor unevenness of the workpiece end face. More preferably, the pressure head 42 can be connected to the movable end of the first linear actuator 41 via a universal ball joint or flexible connector, allowing it to adapt to minor tilts of the sleeve 9 end face, ensuring that the clamping force acts perpendicularly to the end face and avoiding lateral force that could cause workpiece displacement. Under pneumatic or hydraulic drive, the pressure head 42 extends linearly to complete the clamping action. Furthermore, limit switches can be installed on the stroke path of the clamping actuator 4 to provide feedback to the control system 8 on the "released" and "clamped in place" states of the pressure head 42, achieving reliable interlocking of the actions.

[0026] Welding actuator 5, also mounted on the base 1 and located above the rotary worktable 2, is arranged circumferentially at intervals from the clamping actuator 4. This mechanism has a welding output end that can move linearly toward the positioning mechanism 3, used for welding the circumferential seam between the base 10 and the sleeve 9 when under clamping. Specifically, the welding actuator 5 includes a second linear actuator 51 (which can also be a cylinder, hydraulic cylinder, or electric actuator) serving as a feed power source and a welding torch 52 mounted on its movable end. The second linear actuator 51 drives the welding torch 52 to move forward from its initial safe position to a preset welding position (i.e., adjusting the arc-starting distance and angle between the welding torch and the workpiece) before welding begins, and retracts it after welding is completed. This "feed-and-retract" action is crucial; it not only protects the welding torch 52 from impacts when not in use, but also accurately reproduces the "extension length" and angle of the welding torch tip relative to the weld before each welding operation, which is one of the key parameters for ensuring welding process stability. The welding torch 52 constitutes the welding output end. The welding torch 52 can be selected from gas shielded welding (MIG / MAG) torches or tungsten inert gas (TIG) torches according to process requirements, and is connected to an external welding power source, wire feed mechanism, and shielding gas path. The torch holder 52 is typically designed with adjustable angle and orientation to optimize the weld pool state. For MIG / MAG welding, the wire feed mechanism is usually installed separately from the torch 52 and connected via a wire feed hose; the torch holder 52 must be equipped with an insulating block and a reliable contact tip clamping device. To accommodate long-duration welding, the torch 52 can be equipped with a water-cooling jacket. A gas shield for guiding the shielding gas can be installed near the torch 52, and its direction can be adjusted according to the weld location.

[0027] A rotary drive mechanism 6 is mounted on the base 1 and is connected to the rotating shaft 21 of the rotary worktable 2. Its function is to drive the rotary worktable 2 and the workpiece on it to rotate uniformly around the axis of the positioning mechanism 3 during welding, thereby enabling the stationary welding torch 52 to complete the welding of the entire circumferential seam in one continuous operation. In this embodiment, the rotary drive mechanism 6 includes a drive motor 61 (such as a servo motor or stepper motor) located below the base 1. The rotating shaft 21 of the rotary worktable 2 passes downward through the base 1 and is connected to the output shaft of the drive motor 61 via a transmission belt 62. Using a synchronous belt drive (a type of transmission belt 62) effectively isolates motor vibration, provides smooth transmission, low noise, and has a certain overload protection capability. The drive motor 61 is mounted on the bottom of the base 1 via a motor mount. Alternatively, the transmission method can be replaced with a gear transmission assembly or a hollow shaft motor drive. By employing a servo / stepper motor drive in conjunction with a transmission mechanism, precise and stepless speed adjustment can be achieved to adapt to the welding speed requirements of workpieces with different diameters and different welding processes. It can also precisely control the number of rotations to ensure good overlap of the start and end points of the weld. The control system 8 can automatically calculate and set the speed of the drive motor 61 based on the input workpiece diameter and the set welding line speed. For example, if the welding line speed is set to V (mm / min) and the workpiece weld diameter is D (mm), then the required speed N (rpm) = V / (π * D). This speed matching ensures that regardless of the workpiece size, the melting and forming conditions of the weld edge tend to be consistent.

[0028] In a preferred embodiment, a mounting base 7 is also included. The mounting base 7 is fixed to the machine base 1 and spans the rotary worktable 2 in the form of a gantry or cantilever beam. The clamping actuator 4 and the welding actuator 5 are installed at intervals along the radial (or circumferential, depending on layout) direction of the rotary worktable 2 on the crossbeam of the mounting base 7. To facilitate adjustment of the positions of the pressure head 42 and the welding torch 52 to accommodate workpieces of different specifications, linear guide rails and sliders can be provided on the crossbeam of the mounting base 7. The mounting brackets of the first linear actuator 41 and the second linear actuator 51 are detachably fixed to the corresponding sliders by locking bolts. By loosening the locking bolts, the horizontal position of the two actuators can be adjusted along the guide rail direction, and then locked in place. This adjustment mechanism allows for flexible setting of the radial distance between the clamping point and the welding point according to the outer diameter of the workpiece. A scale can be attached next to the guide rail for easy rough positioning and recording of position parameters corresponding to different products. This integrated and adjustable installation method not only boasts a compact structure and high rigidity, ensuring the positional accuracy of the pressure head 42 and welding torch 52 during long-term operation, but also greatly enhances the equipment's process adaptability and maintenance convenience. Furthermore, a vertical adjustment mechanism (such as a lifting slide) can be installed on the column of the mounting base 7 to allow for overall adjustment of the height of the clamping actuator 4 and welding actuator 5, accommodating workpieces of varying total heights.

[0029] In this embodiment, a control system 8 is also included. The control system 8 (e.g., a PLC or industrial controller) is electrically connected to the drive motor 61 of the rotary drive mechanism 6, the first linear actuator 41 of the clamping actuator 4, and the welding torch power supply, wire feeder, protective gas valve, and second linear actuator 51 of the welding actuator 5. The control system 8 automatically executes the entire welding process sequentially according to a preset program: first, it controls the clamping actuator 4 to clamp the workpiece; then, it controls the second linear actuator 51 of the welding actuator 5 to move the welding torch 52 to the welding position; then, it starts the rotary drive mechanism 6 to rotate the workpiece, simultaneously triggering the welding actuator 5 to begin welding (gas supply, power supply, wire feeding); after the workpiece has rotated one revolution (or a set angle), welding and rotation stop, the welding torch 52 retracts, and finally, the clamping mechanism is released. This process incorporates strict safety interlocking logic. For example, if a "clamping in place" signal is not detected, the welding process cannot start; if the clamping mechanism is abnormally loosened during welding, welding and rotation immediately stop; if the welding torch 52 does not return to the safe position, the rotary table 2 cannot rotate at high speed or perform workpiece loading and unloading, etc. The fully automated process significantly reduces the labor intensity and skill requirements of operators, while ensuring the consistency of process parameters for each product. The control system 8 can also integrate a human-machine interface (HMI) for setting parameters such as welding speed (rotation speed), welding current and voltage, clamping time, and welding start and end angles, and displaying equipment status, alarm information, and production counts. Furthermore, the control system 8 can be equipped with data storage and traceability functions to record the welding parameters of each workpiece and connect to the MES (Manufacturing Execution System) for digital management of welding quality.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic welding device for the handle head of a barrier gate, characterized in that: Base (1); A rotary worktable (2) is rotatably mounted on the machine base (1) and is used to support and drive the workpiece to rotate. The positioning mechanism (3) is fixedly installed in the rotation center area of ​​the rotating worktable (2) and is used to radially position the stacked gate arm handle base (10) and sleeve (9). A clamping actuator (4) is provided on the machine base (1) and located above the rotary worktable (2). The clamping actuator (4) is provided with a clamping end that can move linearly toward the positioning mechanism (3) so as to axially clamp and fix the sleeve (9) to the base (10) before welding. Welding actuator (5) is set on the base (1) and located above the rotary table (2). The welding actuator (5) is provided with a welding output end that can move linearly toward the positioning mechanism (3) and is used to weld the joint circumferential seam between the base (10) and the sleeve (9) in the clamped state. A rotary drive mechanism (6) is mounted on the base (1) and is connected to the rotary worktable (2) for driving the rotary worktable (2) during welding and causing the workpiece on the rotary worktable (2) to rotate at a constant speed around the axis of the positioning mechanism (3).

2. The automatic welding equipment for the gate arm handle head according to claim 1, characterized in that: The rotary drive mechanism (6) includes a drive motor (61) located below the base (1), and the rotary worktable (2) is connected to the output shaft of the drive motor (61) via a rotating shaft (21) passing through the base (1).

3. The automatic welding equipment for the gate arm handle according to claim 2, characterized in that: The output shaft of the drive motor (61) is connected to the rotating shaft (21) via a belt drive assembly or a gear drive assembly.

4. The automatic welding equipment for the gate arm handle head according to claim 1, characterized in that: The clamping actuator (4) includes a first linear driver (41) and a pressure head (42) mounted on its movable end; the welding actuator (5) includes a second linear driver (51) and a welding torch (52) mounted on its movable end.

5. The automatic welding equipment for the gate arm handle head according to claim 4, characterized in that: Both the first linear actuator (41) and the second linear actuator (51) are cylinders, hydraulic cylinders or electric push rods.

6. The automatic welding equipment for the gate arm handle head according to claim 1, characterized in that: It also includes a mounting base (7), which is fixed on the machine base (1) and spans across the rotary table (2). The clamping actuator (4) and the welding actuator (5) are installed on the mounting base (7) at radial intervals along the rotary table (2).

7. The automatic welding equipment for the gate arm handle head according to claim 1, characterized in that: The positioning mechanism (3) includes a positioning post (31) whose diameter matches the inner hole of the base (10) and the inner hole of the sleeve (9).

8. The automatic welding equipment for the gate arm handle head according to claim 7, characterized in that: The positioning post (31) is provided with multiple bosses (311) coaxially along the length direction.

9. The automatic welding equipment for the gate arm handle head according to claim 1, characterized in that: It also includes a control system (8), which is electrically connected to the rotary drive mechanism (6), the pressing actuator (4) and the welding actuator (5) for controlling the automatic sequential execution of the pressing, rotating and welding processes.

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