Welding head assembly and welding device

Abstract

The utility model provides a kind of welding head assembly and welding device, welding head assembly includes: welding frame, it is annular;Multiple welding heads, are located in the inner circumferential surface side of the welding frame, the welding head can move along the radial direction of the welding frame, the welding head has gas distribution cavity inside, each welding head has multiple nozzles that communicate the gas distribution cavity. The welding head assembly of the utility model embodiment can adapt to different profile materials.

Description

Technical Field

[0001] This utility model relates to the field of welding technology, and in particular to a welding head assembly and welding device. Background Technology

[0002] In the manufacturing of machinery, pipeline engineering, and the production of specific structural components, welding operations are frequently required on the ends of multiple materials arranged side-by-side or in groups. For example, in the semiconductor, photovoltaic, and optical fiber manufacturing industries, welding quartz tubes requires fixing the quartz tube body and end caps separately before welding. Traditional welding equipment is mostly designed for single-station operation. When dealing with such grouped materials, it is necessary to repeatedly adjust the position of the materials or equipment, resulting in low positioning accuracy, cumbersome repetitive clamping, and low production efficiency. Furthermore, it is impossible to compensate for changes in material diameter, tolerances, or slight positional shifts due to gravity or thermal deformation, affecting the consistency of weld quality. Utility Model Content

[0003] This utility model provides a welding head assembly and welding device to at least solve some of the above-mentioned technical problems existing in the prior art.

[0004] In a first aspect, embodiments of the present invention provide a welding head assembly, comprising: The welding frame is ring-shaped. Multiple welding heads are disposed on one side of the inner circumferential surface of the welding frame. The welding heads are capable of moving radially along the welding frame. Each welding head has a gas distribution chamber inside and multiple nozzles communicating with the gas distribution chamber on each welding head.

[0005] In an optional embodiment, the welding head is connected by a telescopic member that can extend and retract radially along the welding frame, thereby driving the welding head to move radially along the welding frame.

[0006] In an optional embodiment, the side of the welding head facing the center of the welding frame is a concave arc surface, the nozzle is disposed on the concave arc surface, and the nozzle is arranged radially along the concave arc surface.

[0007] In an optional embodiment, the welding frame includes: The support ring has its inner circumference forming a circle; A movable ring is rotatably disposed within the support ring. The movable ring has a cooling channel and a gas channel inside. The movable ring has a cooling water inlet, a cooling water outlet and a gas inlet. The cooling water inlet and the cooling water outlet are connected to the cooling channel, and the gas inlet is connected to the gas channel. The gas distribution chamber of the welding head is connected to the gas flow channel through a gas connection pipe. The welding head has a cooling circulation passage inside, and the cooling circulation passage is connected to the cooling flow channel through a cooling connection pipe.

[0008] Secondly, embodiments of this utility model provide a welding apparatus, comprising: seat body; A support component is provided on the base; The welding head assembly described in any embodiment of this utility model is disposed on the base body; At least one of the support component and the welding head assembly is movably disposed on the base so that the support component and the welding head assembly can move closer to or further away from each other.

[0009] In an optional embodiment, the carrier component includes: The support base is connected to the base body; A support tray, connected to the support base, is used to support the material to be welded. One end of the support tray facing the welding head assembly is suspended in the air, and the other end is provided with a counterweight.

[0010] In an optional embodiment, the carrying pallet is connected by a telescopic structure, which causes the carrying pallet to rise or fall.

[0011] In an optional embodiment, the carrying tray includes two opposing sidewalls that form a groove for receiving materials, the groove having a trapezoidal or triangular cross-section.

[0012] In an optional embodiment, the welding apparatus further includes: A control box is mounted on the base, and a fire baffle is provided between the control box and the welding head assembly.

[0013] In an optional embodiment, the base is provided with a slide rail, and a slide block is slidably mounted on the slide rail, wherein the welding frame of the welding head assembly is connected to the slide block.

[0014] The welding head assembly of this utility model embodiment includes an annular welding frame with multiple welding heads disposed on one side of the inner circumferential surface of the welding frame. Each welding head is radially movable along the welding frame and has a gas distribution chamber inside. Each welding head has multiple nozzles communicating with the gas distribution chamber. By adjusting the position of the welding heads radially along the welding frame, dynamic compensation can be achieved to adapt to materials with different profiles. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the welding head assembly according to an embodiment of the present invention is shown. Figure 2 A schematic diagram of the welding apparatus according to an embodiment of the present invention is shown. Figure 1 Figure 3 A schematic diagram of the welding apparatus according to an embodiment of the present invention is shown. Figure 2 .

[0017] The reference numerals in the attached drawings are explained as follows: 1-Welding head assembly, 11-Welding frame, 111-Support ring, 112-Moving ring, 12-Welding head, 13-Nozzle, 14-Telescopic component, 15-Slide seat, 16-Slide rail, 17-Gas supply pipe, 18-Condensate pipe, 2-Seat body, 3-Bearing component, 31-Bearing seat, 32-Bearing tray, 33-Telescopic structure, 4-Control box, 5-Fire baffle, 6-Cooling water inlet, 7-Cooling water outlet, 8-Gas inlet. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. 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] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that comprises a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or apparatuses.

[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0021] See Figure 1This utility model provides a welding head assembly 1, including a welding frame 11 and a plurality of welding heads 12. The welding frame 11 is annular. The plurality of welding heads 12 are disposed on one side of the inner circumferential surface of the welding frame 11. The welding heads 12 can move radially along the welding frame 11. The welding heads 12 have a gas distribution chamber inside. Each welding head 12 has a plurality of nozzles 13 communicating with the gas distribution chamber.

[0022] The welding head assembly 1 of this embodiment has an annular welding frame 11, with multiple welding heads 12 disposed on one side of the inner circumferential surface of the welding frame 11, thus forming an annular welding head. The annular welding head can heat the material around its circumference. The welding heads 12 can move radially along the welding frame 11. By adjusting the position of the welding heads 12 radially along the welding frame 11, dynamic compensation can be achieved to adapt to different welding conditions and materials with different profiles. The welding head assembly 1 of this embodiment can be used for welding materials such as quartz tubes.

[0023] In some embodiments, the welding head 12 is connected by a telescopic member 14, which can extend and retract radially along the welding frame 11, thereby driving the welding head 12 to move radially along the welding frame 11.

[0024] The welding head 12 is connected to the inner circumference of the welding frame 11 via a telescopic member 14. The telescopic member 14 is arranged radially along the welding frame 11. The telescopic member 14 drives the welding head 12 to move radially along the welding frame 11 by telescopic movement, thereby adjusting the distance between the welding head 12 and the quartz tube.

[0025] In an exemplary embodiment, the telescopic component 14 can be a telescopic rod. The welding head 12 is connected to the welding frame 11 via at least two telescopic rods. When the telescopic rod extends, the welding head 12 moves towards the center of the annular welding frame 11, reducing the distance between the welding head 12 and the material to be welded. When the telescopic rod shortens, the welding head 12 moves away from the center of the annular welding frame 11, increasing the distance between the welding head 12 and the material to be welded. By adjusting the position of the welding head 12 radially along the welding frame 11, the distance between the welding head 12 and the material can be adjusted, adapting to different welding distance requirements due to changes in material diameter, etc. The two telescopic rods ensure a stable connection of the welding head 12 to the welding frame 11. The telescopic component 14 can employ a manually threaded telescopic structure. For example, the telescopic component 14 specifically includes a sleeve and two screws with opposite thread directions. The two screws are threadedly connected to both ends of the sleeve, one of which is connected to the welding frame 11, and the other is connected to the welding head 12. By rotating the sleeve clockwise or counterclockwise, the two screws move closer or further apart, thereby achieving extension and retraction, and driving the welding head 12 to move radially along the welding frame 11.

[0026] Both the gas supply pipe 17 and the condensate pipe 18 can be made of flexible pipes, which can accommodate the movement of the welding head 12. In specific implementations, the flexible pipe includes a corrugated pipe. The corrugated pipe can be bent and deformed as well as expand and contract.

[0027] In some embodiments, the side of the welding head 12 facing the center of the welding frame 11 is a concave arc surface, and the nozzle 13 is disposed on the concave arc surface, with the nozzle 13 arranged radially along the concave arc surface. Having the side of the welding head 12 with the nozzle 13 as a concave arc surface can reduce the difference in distance between the nozzle 13 and the material at different positions in the circumferential direction.

[0028] In some embodiments, the welding frame 11 includes a support ring 111 and a movable ring 112, with the inner circumferential surface of the support ring 111 forming a circle. This provides stable support for the movable ring 112. The movable ring 112 is rotatably disposed within the support ring 111, and has a cooling channel and a gas channel inside. The movable ring 112 has a cooling water inlet 6, a cooling water outlet 7, and a gas inlet 8. The cooling water inlet 6 and the cooling water outlet 7 are connected to the cooling channel, and the gas inlet 8 is connected to the gas channel. The cooling water inlet 6 supplies cooling water through a pipe, and the cooling water outlet 7 outputs cooling water through a pipe, realizing the circulation of cooling water. The gas inlet 8 is connected to a gas source through a pipe for supplying gas. The gas distribution chamber of the welding head 12 is connected to the gas channel through a gas connecting pipe. The welding head 12 has a cooling circulation passage inside, which is connected to the cooling channel through a cooling connecting pipe.

[0029] The movable ring 112 can be divided into multiple segments in the circumferential direction. Each segment has a relatively independent cooling channel and a gas flow channel. Each segment has a cooling water inlet 6, a cooling water outlet 7, and a gas inlet 8 to connect its respective cooling channel and gas flow channel. In a specific implementation, the cooling channel and gas flow channel can be cut into multiple segments in the circumferential direction using plugs, thereby making the movable ring 112 circumferentially divided into multiple segments.

[0030] A slewing bearing can be installed between the movable ring 112 and the support ring 111. The movable ring 112 can be driven by a motor driving a gear pair, or by a manual lever structure.

[0031] In a specific implementation, one end of the telescopic component 14 is connected to the movable ring 112, and the other end is connected to the welding head 12. For example, when the telescopic component 14 includes a sleeve and two screws, one of the two screws is connected to the welding frame 11, and the other is connected to the welding head 12.

[0032] See Figures 1 to 3 This utility model provides a welding device, including a base 2, a support component 3, and a welding head assembly 1. The support component 3 is disposed on the base 2, and the welding head assembly 1 is any of the welding head 1 embodiments of this utility model, also disposed on the base 2. At least one of the support component 3 and the welding head assembly 1 is movably disposed on the base 2, allowing the support component 3 and the welding head assembly 1 to move closer to or further away from each other. The support component 3 is used to support materials, and the movable arrangement of the support component 3 and the welding head assembly 1 on the base 2 during welding operations enables the support component 3 and the welding head assembly 1 to move closer to or further away from each other.

[0033] In some embodiments, the support component 3 includes a support base 31 and a support tray 32, with the support base 31 connected to the base body 2. The support tray 32 is connected to the support base 31 and is used to support the material to be welded. The support base 31 may be fixedly mounted on the base body 2 or movably mounted on the base body 2, allowing the support component 3 to be closer to or further away from the welding head component 1.

[0034] The support tray 32 is suspended at one end facing the welding head assembly 1. The support tray 32 can extend into the annular space formed by multiple welding heads 12, thereby welding the material on the support tray 32. A counterweight is provided at the end of the support tray 32 away from the welding head assembly 1. The counterweight is used to counteract the leverage effect under heavy load conditions of the long cantilever of the support tray 32, ensuring the overall balance of the tray and the stability of the material placement.

[0035] In some embodiments, the support tray 32 is connected to the support tray 32 via a telescopic structure 33, which raises or lowers the support tray 32. The telescopic structure 33 allows for fine-tuning of the height of the support tray 32, and in conjunction with the multi-dimensional adjustment function of the welding head assembly 1, enables rapid centering of grouped materials for welding, reducing reliance on manual operation. The telescopic structure 33 includes, but is not limited to, pneumatic cylinders, hydraulic cylinders, and electric cylinders.

[0036] In some embodiments, the carrying tray 32 includes two opposing sidewalls that form a groove for receiving materials. The groove has a trapezoidal or triangular cross-section. The trapezoidal cross-section of the material-receiving groove can accommodate materials of various shapes, thus improving the versatility of material carrying.

[0037] In some embodiments, the welding apparatus of this utility model further includes a control box, which is mounted on the base 2. The control box can control the actions of various parts of the welding apparatus, including controlling the rotation of the movable ring 112, controlling the radial movement of the welding head 12, controlling the lifting and lowering of the support tray 32, and controlling the horizontal movement of the support assembly 3 and / or the welding head assembly 1. A fire baffle 5 is provided between the control box and the welding head assembly 1. The fire baffle 5 avoids damage to the electrical control components from high temperatures, improving the intelligence level and operational safety of the equipment.

[0038] In this embodiment of the utility model, when the welding head assembly 1 or the bearing assembly 3 is movably connected to the base 2, it can be achieved by setting a slide rail 16 on the base 2.

[0039] In some embodiments, the base 2 is provided with a slide rail 16, and a slide block 15 is slidably provided on the slide rail 16, and the welding frame of the welding head assembly 1 is connected to the slide block 15.

[0040] In this embodiment of the invention, the movement of the welding head assembly 1 or the bearing assembly 3 along the base 2 can be achieved by a drive mechanism. The drive mechanism includes, but is not limited to, a motor and a telescopic structure.

[0041] In some embodiments, the welding apparatus further includes a drive mechanism connected to the slide 15. The drive mechanism drives the slide 15 to move along the slide rail 16, thereby moving the welding head assembly 1. In exemplary embodiments, the drive mechanism includes, but is not limited to, a telescopic structure and a linear motor. The telescopic structure includes, but is not limited to, a cylinder, a hydraulic cylinder, or an electric cylinder, etc., and is mounted on the base 2. The telescopic structure is connected to the slide 15 via a transmission. In specific implementations, the telescopic structure and the slide 15 can be directly hinged or connected via a connecting rod. Alternatively, the drive mechanism can also be a motor, mounted on the slide 15, and the base 2 can be equipped with a rack, with the motor engaging with the rack via gears.

[0042] The linear motor can be combined with the slide 15. In practice, the mover of the linear motor is directly mounted on the slide 15, and the stator is laid between the guide rails. The combination of the linear motor and the slide 15 eliminates the need for intermediate transmission components, resulting in high speed and high precision.

[0043] In this embodiment of the utility model, the axial fine adjustment and circumferential rotation functions of the welding head assembly 1, combined with the CNC telescopic mode of radial movement of the welding head 12, can be adapted to various welding scenarios, greatly improving the accuracy of welding points and operational flexibility.

[0044] The welding apparatus of this embodiment also includes a head clamping device. The head clamping device can be mounted on the base 2, or it can be used as a relatively independent device in conjunction with the welding mechanism consisting of the base 2, the bearing component 3, and the welding head assembly 1. When the head clamping device and the welding mechanism are relatively independent devices, the welding mechanism and the head clamping device are arranged adjacent to each other, the quartz tube is mounted on the bearing component 3, and the head clamping fixture is used to clamp and fix the quartz head. Before welding, the positions of the welding mechanism and the head clamping device are adjusted respectively to ensure precise alignment between the welding end face of the quartz head and the welding port of the quartz tube body. After alignment, the welding head is started to perform circumferential fusion welding.

[0045] The specific structure of the head clamping device is not limited. For example, the head clamping device can adopt a three-jaw chuck clamping mechanism.

[0046] The welding device of this invention has multi-station and multi-dimensional adjustment capabilities, and can simultaneously complete the welding of multiple sets of materials, reducing the time spent on repeated clamping and debugging, and greatly improving production efficiency and overall equipment utilization.

[0047] The above description is merely an exemplary embodiment of this utility model and should not be construed as limiting the scope of this utility model. Any equivalent changes and modifications made in accordance with the teachings of this utility model shall still fall within the scope of this utility model. Other embodiments of this utility model will readily conceive of by those skilled in the art upon consideration of the specification and practice of the disclosure herein. This utility model is intended to cover any variations, uses, or adaptations of this utility model that follow the general principles of this utility model and include common knowledge or customary techniques in the art not described herein. The specification and embodiments are to be considered exemplary only, and the scope and spirit of this utility model are defined by the claims.

Claims

1. A welding head assembly, characterized in that, include: The welding frame is ring-shaped. Multiple welding heads are disposed on one side of the inner circumferential surface of the welding frame. The welding heads are capable of moving radially along the welding frame. Each welding head has a gas distribution chamber inside and multiple nozzles communicating with the gas distribution chamber on each welding head.

2. The welding head assembly according to claim 1, characterized in that, The welding head is connected by a telescopic component that can extend and retract radially along the welding frame, thereby driving the welding head to move radially along the welding frame.

3. The welding head assembly according to claim 1, characterized in that, The side of the welding head facing the center of the welding frame is a concave arc surface, and the nozzle is disposed on the concave arc surface and arranged radially along the concave arc surface.

4. The welding head assembly according to claim 1 or 2, characterized in that, The welding frame includes: The support ring has its inner circumference forming a circle; A movable ring is rotatably disposed within the support ring. The movable ring has a cooling channel and a gas channel inside. The movable ring has a cooling water inlet, a cooling water outlet and a gas inlet. The cooling water inlet and the cooling water outlet are connected to the cooling channel, and the gas inlet is connected to the gas channel. The gas distribution chamber of the welding head is connected to the gas flow channel through a gas connection pipe. The welding head has a cooling circulation passage inside, and the cooling circulation passage is connected to the cooling flow channel through a cooling connection pipe.

5. A welding apparatus, characterized in that, include: seat body; A support component is provided on the base; The welding head assembly according to any one of claims 1-4 is disposed on the base body; At least one of the support component and the welding head assembly is movably disposed on the base so that the support component and the welding head assembly can move closer to or further away from each other.

6. The welding apparatus according to claim 5, characterized in that, The carrier component includes: The support base is connected to the base body; A support tray, connected to the support base, is used to support the material to be welded. One end of the support tray facing the welding head assembly is suspended in the air, and the other end is provided with a counterweight.

7. The welding apparatus according to claim 6, characterized in that, The carrier tray is connected by a telescopic structure, which causes the carrier tray to rise or fall.

8. The welding apparatus according to claim 6, characterized in that, The carrying tray includes two opposing sidewalls that form a groove for receiving materials, the groove having a trapezoidal or triangular cross-section.

9. The welding apparatus according to claim 5, characterized in that, Also includes: A control box is mounted on the base, and a fire baffle is provided between the control box and the welding head assembly.

10. The welding apparatus according to claim 5, characterized in that, The base is provided with a slide rail, and a slide block is slidably mounted on the slide rail. The welding frame of the welding head assembly is connected to the slide block.

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