An argon arc welding equipment

Abstract

This application provides an argon arc welding equipment, including a welding torch device, a clamping device, a displacement device, and a mounting mechanism. The welding torch device is used for argon arc welding of the workpiece. The clamping device is used to clamp the workpiece. The displacement device is connected to the welding torch device and is used to drive the welding torch device to move parallel to the axial direction and radial direction, as well as to rotate around the central axis of the clamping device. The mounting mechanism is used to install the welding torch device, the clamping device, and the displacement device. In the argon arc welding equipment of this application, by setting the displacement device connected to the welding torch device to drive the welding torch device to move parallel to the axial direction and radial direction and to rotate around the central axis of the clamping device, multi-directional welding of the workpiece is ensured. The clamping device does not need to drive the workpiece to move; the welding torch device moves to perform multi-directional welding. The welding torch device is small in size, lightweight, and simple in structure. The displacement does not affect the stability of the workpiece, and it has high positioning accuracy and centering, improving welding quality and welding efficiency.

Description

Technical Field

[0001] This application relates to the field of welding equipment technology, specifically to an argon arc welding equipment. Background Technology

[0002] Argon arc welding equipment is a common type of welding equipment that uses an electric arc between a tungsten electrode and the workpiece to melt the metal and form a weld. In the prior art, most argon arc welding equipment includes a clamping device and a welding torch. The clamping device holds the workpiece and can rotate or move to move the workpiece to the welding torch for welding.

[0003] However, in this type of welding equipment, when the clamping device moves the workpiece, the clamping device has a relatively complex and heavy structure. Combined with the weight of the workpiece itself, this reduces the stability of the workpiece during movement, thereby reducing the positioning accuracy and alignment between the workpiece and the welding torch, and consequently reducing the welding quality and welding efficiency.

[0004] Therefore, there is room for further improvement in existing argon arc welding equipment. Utility Model Content

[0005] In view of this, in the existing argon arc welding equipment, the positioning accuracy and alignment between the welding torch and the workpiece are poor due to the clamping device driving the workpiece to align with the welding torch, resulting in low welding quality. This application provides an argon arc welding equipment in which the welding torch can be displaced relative to the clamping device, thereby avoiding displacement of the workpiece, improving positioning accuracy and alignment, and improving welding quality and welding efficiency.

[0006] This application provides an argon arc welding equipment, comprising:

[0007] A welding torch device used for argon arc welding of workpieces;

[0008] Clamping device for clamping welded parts;

[0009] The displacement device, connected to the welding torch device, is used to drive the welding torch device to move parallel to the axial and radial directions, as well as to rotate around the central axis of the clamping device.

[0010] The mounting mechanism is used to mount the welding torch assembly, clamping device, and displacement device.

[0011] Compared with the prior art, the argon arc welding equipment of this application, by setting a displacement device connected to the welding torch device, drives the welding torch device to move parallel to the axial and radial directions and rotate around the central axis of the clamping device, so as to ensure multi-directional welding of the workpiece. In this application, there is no need for the clamping device to drive the displacement of the workpiece. The welding torch device is used to perform multi-directional welding of the workpiece. The welding torch device is small in size, lightweight and simple in structure. The displacement does not affect the stability of the workpiece, thereby improving the positioning accuracy and centering between the welding torch and the workpiece, and improving the welding quality and welding efficiency.

[0012] Preferably, the displacement device includes:

[0013] The rotating mechanism, connected to the welding torch device, is used to drive the welding torch device to rotate around the central axis of the clamping device, thereby completing the multi-directional welding of the workpiece around the central axis.

[0014] An axial displacement mechanism, connected to the welding torch assembly, is used to drive the welding torch assembly to translate parallel to the axis, enabling the welding torch to move bidirectionally along the axial direction, achieving fine-tuning, ensuring welding accuracy, and improving welding quality.

[0015] The radial displacement mechanism, connected to the welding torch assembly, drives the welding torch assembly to translate parallel to the radial direction, enabling the welding torch to move in both directions radially, achieving fine-tuning, ensuring welding accuracy, and improving welding quality.

[0016] Preferably, the welding torch device includes:

[0017] The welding head includes a tungsten needle and a gas outlet channel. The gas outlet channel is arranged around the tungsten needle so that argon gas can exit around the tungsten needle to isolate the air around the tungsten needle, stabilize the electric arc, and ensure welding quality.

[0018] The wire feeding mechanism is used to feed conductive welding wire into the welding joint. It can realize automatic wire feeding, reduce manual labor requirements, and improve welding efficiency.

[0019] The conveying mechanism is used to supply power to the welding head and to convey argon and cooling liquid, thereby enabling the supply of current, argon and cooling liquid.

[0020] Preferably, the conveying mechanism includes:

[0021] The water-gas conductive slip ring is fixedly connected to the bottom of the rotating base. It can transmit electricity, gas and liquid simultaneously, thus achieving high integration and reducing the structural complexity of the conveying mechanism. Furthermore, it can prevent pipe entanglement when the welding head rotates, improving the stability of electricity, gas and liquid output.

[0022] The water-gas conductive slip ring is provided with a gas flow path, a liquid inlet flow path, a liquid return flow path, and a reserved flow path. The reserved flow path can provide additional alternatives for the liquid. When the liquid inlet flow path or the liquid return flow path is blocked, the reserved flow path can be used instead, thereby ensuring reduced maintenance costs.

[0023] Preferably, the mounting mechanism includes:

[0024] A fixed base is used to connect and install the clamping device, so that the clamping device can remain stable relative to the welding torch assembly.

[0025] The rotating base is rotatably connected to the fixed base and to the welding gun device; the rotating base can drive the welding gun device to rotate relative to the fixed base, thereby enabling the welding gun device to rotate relative to the clamping device.

[0026] The rotating mechanism is located inside the fixed base and is used to drive the rotating base to rotate around the central axis of the fixed base;

[0027] The axial displacement mechanism is connected to the radial displacement mechanism;

[0028] The radial displacement mechanism is connected to the rotating base via a mounting base, and the welding torch device is connected to the axial displacement mechanism.

[0029] Alternatively, the axial displacement mechanism is connected to the rotating base via a mounting base, and the welding torch device is connected to the radial displacement mechanism.

[0030] Preferably, the rotating mechanism includes:

[0031] A rotary drive component, connected within a fixed base, is used to provide driving force to drive the welding torch assembly to rotate;

[0032] The drive gear is connected to the output shaft of the rotary drive component;

[0033] The driven gear meshes with the driving gear and is sleeved on the rotating base; through the cooperation of the driving gear and the driven gear, the power transmitted by the rotating drive component can be transmitted to the rotating base to realize the driving of the welding gun device.

[0034] Preferably, the mounting mechanism further includes:

[0035] The fixed column is used to connect the clamping device to the fixed base. The fixed column is set along the axial direction, with its upper end fixedly connected to the clamping device and its lower end fixedly connected to the fixed base. A water-gas conductive slip ring is sleeved on the lower part of the fixed column. Through reasonable arrangement, the structure of the welding equipment is made compact.

[0036] A bearing assembly, located between a fixed base and a rotating base, includes at least two bearings distributed along the axial direction, which enable the rotating base to rotate relative to the fixed base under the action of the bearing assembly.

[0037] The limiting part, located on the fixed base, is used to limit the bearing assembly axially and radially. The limiting part can fix the bearing assembly and ensure the connection stability between the fixed base and the bearing assembly.

[0038] Preferably, the mounting mechanism further includes:

[0039] A rotating sleeve is fitted over the fixed post to connect the welding head; one end of the rotating sleeve is rotatably connected to the clamping device, and the other end is rotatably connected to the fixed base.

[0040] A connecting bracket is used to securely connect the end of the fixing column away from the welding head to the fixing base.

[0041] The fixed part of the rotary drive component is fixedly connected to the connecting bracket.

[0042] In this embodiment, the rotating sleeve can protect the fixed column, and the rotating base can install the welding head so that the welding head and the rotating sleeve are relatively fixed, and the rotating sleeve can rotate together with the welding head; the connecting bracket can connect the fixed column and the fixed base.

[0043] Preferably, the clamping device includes:

[0044] The clamping and mounting component has an axial through hole for inserting the welded component;

[0045] The grippers are radially slidably connected to the clamping mounting piece and are used to clamp the welded parts;

[0046] The clamping drive unit is connected to the gripper and is used to drive the gripper to move radially.

[0047] The gripper is provided with at least three grippers, which are distributed at equal intervals along the same circumference.

[0048] In this embodiment, the clamping drive can drive the jaws to move, so as to achieve automatic clamping of the clamping components.

[0049] Preferably, the conveying mechanism further includes:

[0050] The power connector, located on the water-gas conductive slip ring, is used to connect the welding head, thereby connecting the water-gas conductive slip ring to the welding gun device and supplying power to the welding gun device.

[0051] The air inlet connector connects to the air inlet end of the gas flow path and can guide the gas into the gas flow path;

[0052] The gas outlet connector connects to the gas outlet end of the gas flow path, thereby directing the gas out of the gas flow path and supplying gas to the welding torch device;

[0053] The first liquid inlet connector is connected to the liquid inlet end of the liquid inlet flow path and is used to guide the fluid into the liquid inlet flow path.

[0054] The first liquid outlet connector is connected to the liquid outlet end of the liquid inlet flow path and is used to guide the cooling liquid in the liquid inlet flow path to the welding torch device.

[0055] The second liquid inlet connector is connected to the liquid inlet end of the return flow path and is used to guide the cooling liquid already used in the welding torch device to the return flow path.

[0056] The second liquid outlet connector is connected to the liquid outlet end of the return flow path and is used to guide the liquid in the return flow path back to the liquid storage location. Attached Figure Description

[0057] Figure 1 This is a three-dimensional structural schematic diagram of an argon arc welding equipment provided in an embodiment of this application;

[0058] Figure 2 This is a schematic cross-sectional view of an argon arc welding equipment provided in one embodiment of this application. Figure 1 ;

[0059] Figure 3 This is a schematic cross-sectional view of an argon arc welding equipment provided in one embodiment of this application. Figure 2 ;

[0060] Figure 4 yes Figure 1 A magnified view of part A;

[0061] Figure 5 yes Figure 2 A magnified schematic diagram of part B.

[0062] Reference numerals: 1. Welding torch assembly; 2. Clamping device; 3. Rotation mechanism; 4. Axial displacement mechanism; 5. Radial displacement mechanism; 6. Mounting mechanism; 7. Mounting base;

[0063] 11. Welding head; 12. Wire feeding mechanism; 13. Water-air conductive slip ring; 14. Connecting rod; 111. Cooling block; 112. Air outlet block; 121. Wire feeding nozzle; 122. Wire feeding drive component;

[0064] 21. Clamping and mounting components; 22. Grippers;

[0065] 31. Rotary driving component; 32. Driving gear; 33. Driven gear;

[0066] 61. Fixed base; 62. Rotating base; 63. Fixed column; 64. Bearing assembly; 65. Rotating sleeve; 66. Connecting bracket; 641. First bearing; 642. Second bearing. Detailed Implementation

[0067] To enable those skilled in the art to better understand the technical solutions of this disclosure, the following detailed, clear, and complete description of this disclosure is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of this disclosure and are not intended to limit it.

[0068] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0069] Those skilled in the art should understand that in the disclosure of this application, the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and 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, the above terms should not be construed as limitations on this application.

[0070] The present application will now be described in further detail with reference to the accompanying drawings, see below. Figures 1 to 5 illustrate.

[0071] This application provides an argon arc welding equipment, hereinafter referred to as the welding equipment. This welding equipment is fully automatic and can automatically weld the workpiece.

[0072] Specifically, such as Figures 1 to 3 As shown, the welding equipment includes a welding torch device 1, a clamping device 2, a displacement device, and a mounting mechanism 6. The mounting mechanism 6 is used to mount the welding torch device 1, the clamping device 2, and the displacement device. The clamping device 2 is used to clamp the workpiece, and the welding torch device 1 is used to weld the workpiece. The displacement device is connected to the welding torch device 1 and is used to drive the welding torch device 1 to move parallel to the axial direction and radial direction, as well as to rotate around the central axis of the clamping device 2, so as to ensure multi-directional welding of the workpiece. In this application, the clamping device 2 is not required to drive the displacement of the workpiece. The welding torch device 1 is used to perform multi-directional welding of the workpiece by displacement. The welding torch device 1 is small in size, lightweight and simple in structure. The displacement does not affect the stability of the workpiece, thereby improving the positioning accuracy and centering between the welding torch and the workpiece, and improving the welding quality and welding efficiency.

[0073] In particular, based on the rotation around the center line, the welding torch device 1 can be finely adjusted parallel to the axial and radial directions, thereby ensuring the positioning accuracy and centering between the welding torch device 1 and the workpiece, and improving the welding quality.

[0074] like Figures 1 to 5As shown, the mounting mechanism 6 is further described below; the mounting mechanism 6 includes a fixed base 61, a rotating base 62, a connecting bracket 66, and a fixing column 63, as shown. Figures 2 to 3 As shown, the fixed base 61 is a sleeve structure, the fixed column 63 is a columnar structure, and the fixed base 61, fixed column 63, and rotating base 62 are coaxially arranged. The upper end of the fixed column 63 is fixedly connected to the clamping device 2, and the lower end of the fixed column 63 is connected to the fixed base 61 via a connecting bracket 66, thereby achieving a relatively fixed connection between the clamping device 2 and the fixed base 61, enabling the clamping device 2 to stably clamp the welded parts. The rotating base 62 is sleeved on the outside of the fixed column 63, with a gap between the inner wall of the rotating base 62 and the outer wall of the fixed column 63. The connecting bracket 66 is sleeved on the outside of the rotating base 62, and a bearing assembly 64 is provided between the connecting bracket 66 and the rotating base 62, allowing the rotating base 62 to rotate relative to the fixed base 61. Figures 1 to 3 As shown, the welding torch device 1 is connected to the rotating base 62, which in turn enables the rotating base 62 to drive the welding torch device 1 to rotate relative to the clamping device 2, so as to realize the circumferential welding of the workpiece on the clamping device 2 around the central axis.

[0075] In this embodiment, the bearing assembly 64 includes at least two bearings, which are spaced apart along the axial direction; a bearing is provided at both ends of the rotating base 62 to ensure the connection stability between the rotating base 62 and the fixed base 61; the bearings are preferably deep groove ball bearings.

[0076] Among them, such as Figure 5 As shown, the bearing assembly 64 includes a first bearing 641 and a second bearing 642. The first bearing 641 is disposed at one end of the rotating base 62 near the clamping device 2, and the second bearing 642 is disposed at the other end of the rotating base 62. The rotating base 62 is provided with a limiting groove for mounting the first bearing 641. The limiting groove has an L-shaped structure and limits the inner ring of the first bearing 641 radially and axially. The fixed base 61 is provided with a limiting ring groove, which can limit the outer ring of the first bearing 641 axially and radially, thereby ensuring that the first bearing 641 can be stably connected between the rotating base 62 and the fixed base 61, and ensuring the connection stability between the rotating base 62 and the fixed base 61.

[0077] like Figure 5 As shown, the outer side of the rotating base 62 is provided with a mounting groove for mounting the second bearing 642, which is used to limit the inner ring of the second bearing 642 axially and radially; the inner ring of the connecting bracket 66 is provided with a limiting part, the L-shaped annular groove of the limiting part, the limiting part limits the outer ring of the second bearing 642 axially and radially, thereby enabling the second bearing 642 to be stably connected between the rotating base 62 and the connecting bracket 66, and relatively fixed in the radial and axial directions, ensuring the rotational stability of the rotating base 62 around the central axis.

[0078] Furthermore, such as Figures 1 to 3 As shown, the mounting mechanism 6 also includes a rotating sleeve 65, which is sleeved on the outside of the fixed post 63. The rotating sleeve 65 and the fixed base 61 are distributed axially, and the rotating base 62 is located close to the clamping device 2. One end of the rotating sleeve 65 is rotatably connected to the clamping device 2, and the other end is fixedly connected to the fixed base 61, thereby making the rotating sleeve 65 and the fixed base 61 indirectly rotatably connected. A third bearing is provided between the rotating sleeve 65 and the clamping device 2. The rotating sleeve 65 limits the outer ring of the third bearing axially and radially, and the clamping device 2 limits the inner ring of the third bearing axially and radially, thereby enabling the rotating sleeve 65 and the clamping device 2 to be stably rotatably connected through the third bearing.

[0079] Furthermore, such as Figure 2 , Figure 3 As shown, the connecting bracket 66 includes a connecting plate and a connecting frame; the connecting plate has a through hole for the rotating base 62 to pass through, the connecting plate is set inside the fixed base 61, the outer side of the connecting plate is connected to the inner side wall of the fixed base 61, and the inner side wall of the connecting plate is connected to the rotating base 62 through the first bearing 641; the connecting frame has an inverted n-shaped structure, the axial support of the connecting frame is fixedly connected to the connecting plate, and the middle of the radial support of the connecting frame is fixedly connected to the bottom of the fixed column 63, thereby connecting the fixed column 63 and the fixed base 61.

[0080] Based on any of the above embodiments, the displacement device will be further described; such as Figures 2 to 3 , Figure 5 As shown, the displacement device includes a rotating mechanism 3, an axial displacement mechanism 4, and a radial displacement mechanism 5; wherein, the rotating mechanism 3 is disposed in the fixed base 61, and the axial displacement mechanism 4 and the radial displacement mechanism 5 are disposed in the rotating sleeve 65. The rotating mechanism 3 is used to drive the welding torch device 1 to rotate around the central axis of the clamping device 2, the axial displacement mechanism 4 is used to drive the welding torch device 1 to translate parallel to the axial direction, and the radial displacement mechanism 5 is used to drive the welding torch device 1 to translate parallel to the radial direction.

[0081] Specifically, such as Figures 2 to 3 , Figure 5As shown, the rotating mechanism 3 includes a rotating drive component 31, a driving gear 32, and a driven gear 33. The fixed part of the rotating drive component 31 is fixedly connected to the connecting plate of the connecting bracket 66. The output end of the rotating drive component 31 can rotate relative to the connecting bracket 66. The output end of the rotating drive component 31 is connected to the driving gear 32. The driven gear 33 is fixedly sleeved on the outside of the rotating base 62. The driving gear 32 and the driven gear 33 mesh. Then, with the cooperation of the driving gear 32 and the driven gear 33, the power transmitted by the rotating drive component 31 can be transmitted to the rotating base 62 to realize the rotation of the rotating base 62. Then, the rotating base 62 drives the welding torch device 1 to rotate.

[0082] like Figure 3 As shown, in an optional embodiment, the radial displacement mechanism 5 is fixedly connected to the rotating sleeve 65 via a mounting base 7, the fixed part of the axial displacement mechanism 4 is connected to the sliding part of the radial displacement mechanism 5, and the welding torch device 1 is connected to the sliding part of the axial displacement mechanism 4; thereby enabling the radial displacement mechanism 5 to simultaneously drive the axial displacement mechanism 4 and the welding torch device 1 to move radially, while the axial displacement mechanism 4 can independently drive the welding torch device 1 to move axially.

[0083] In another optional embodiment of this application, the axial displacement mechanism 4 is fixedly connected to the rotating sleeve 65 via a mounting base 7, the fixed part of the radial displacement mechanism 5 is connected to the sliding part of the axial displacement mechanism 4, and the welding torch device 1 is connected to the sliding part of the radial displacement mechanism 5; thereby enabling the axial displacement mechanism 4 to simultaneously drive the radial displacement mechanism 5 and the welding torch device 1 to move axially, while the radial displacement mechanism 5 can drive the welding torch device 1 to move radially independently.

[0084] In this application, the rotary drive 31 is a servo motor; the axial displacement mechanism 4 and the radial displacement mechanism 5 are driven by linear drive motors, preferably lead screw motors.

[0085] Based on any of the above embodiments, the welding torch device 1 will be further described; such as Figure 2 , Figure 3As shown, the welding torch device 1 includes a welding head 11, a wire feeding mechanism 12, and a conveying mechanism. The welding head 11 extends into the rotating sleeve 65 via an L-shaped connecting rod 14 and is connected to the radial displacement mechanism 5 and the axial displacement mechanism 4. This allows the welding head 11 to be indirectly and fixedly connected to the rotating base 62, enabling it to rotate with the rotating base 62 while simultaneously being driven independently by the radial displacement mechanism 5 and the axial displacement mechanism 4. This avoids other devices moving axially or radially together, achieving precise fine-tuning of the welding head 11 and ensuring its positioning accuracy. In this embodiment, the wire feeding mechanism 12 is used to feed welding wire at the welding point to complete the welding; the conveying mechanism is used to supply power to the welding head 11 and deliver argon gas and cooling liquid to ensure the welding head 11 can operate normally.

[0086] Specifically, such as Figure 4 As shown, the welding head 11 includes a tungsten needle, an exhaust block 112, and a cooling block 111. The exhaust block 112 is provided with an exhaust channel for argon gas to flow through. The exhaust channel is arranged around the tungsten needle so that argon gas can be exhausted around the tungsten needle to isolate the air around the tungsten needle, stabilize the arc, and ensure welding quality. The cooling block 111 is provided with a cooling channel and an intake channel, which are connected to the exhaust channel. Two connectors are connected to both ends of the cooling channel for liquid inlet or liquid outlet. The intake end of the intake channel is connected to an intake connector for argon gas to enter.

[0087] The conveying mechanism may include both gas-conducting slip rings and liquid-conducting slip rings, or it may only include a water-gas-conducting slip ring 13. In this embodiment, the conveying mechanism includes a water-gas-conducting slip ring 13, which simultaneously conveys electricity, gas, and cooling liquid. Figure 2 , Figure 3 As shown, the water-gas conductive slip ring 13 is sleeved on the outside of the fixed column 63. The water-gas conductive slip ring 13 is rotatably connected to the fixed column 63, but the water-gas conductive slip ring 13 is fixedly connected to the bottom of the rotating base 62. The water-gas conductive slip ring 13 can transmit electricity, gas and liquid simultaneously, has a high degree of integration, and can reduce the structural complexity of the conveying mechanism. In addition, it can rotate with the welding head 11, thereby avoiding the pipe entanglement when the welding head 11 rotates, and improving the stability of the output of electricity, gas and liquid.

[0088] Specifically, the water-gas conductive slip ring 13 is provided with a gas flow path, a liquid inlet flow path, a liquid return flow path, and a reserved flow path. The gas flow path is used to guide gas, the liquid inlet flow path and the liquid return flow path are used to guide liquid, and the reserved flow path can provide an additional alternative for the liquid flow path. When the liquid inlet flow path or the liquid return flow path is blocked, the reserved flow path can be used instead, thereby ensuring reduced maintenance costs.

[0089] like Figure 2 , Figure 3As shown, the conveying mechanism also includes a power connector, an air inlet connector, an air outlet connector, a first liquid inlet connector, a first liquid outlet connector, a second liquid inlet connector, and a second liquid outlet connector. The power connector is located at the axial end of the water-gas conductive slip ring 13 near the welding head 11 and is used to connect to the welding head 11. The air inlet connector is located at the radial end of the water-gas conductive slip ring 13 and is connected to the air inlet end of the gas flow path, enabling it to guide gas into the gas flow path. The air outlet connector is located at the axial end of the water-gas conductive slip ring near the welding head 11 and is connected to the air outlet end of the gas flow path, discharging gas out of the gas flow path to supply gas to the welding torch device 1. The first liquid inlet connector is located at the radial end of the water-gas conductive slip ring 13 and is connected to the air outlet end of the gas flow path, discharging gas into the gas flow path to supply gas to the welding torch device 1. The inlet end of the liquid flow path is connected to guide the fluid into the liquid flow path; the first outlet connector is located at the axial end of the water-air guide slip ring near the welding head 11, and is connected to the outlet end of the liquid flow path, for guiding the cooling liquid in the liquid flow path to the cooling block 111 of the welding head 11; the second inlet connector is located at the axial end of the water-air guide slip ring near the welding head 11, and is connected to the inlet end of the return flow path, for guiding the used cooling liquid in the cooling block 111 of the welding head 11 to the return flow path; the second outlet connector is located at the radial side end of the water-air conductive slip ring 13, and is connected to the outlet end of the return flow path, for guiding the liquid in the return flow path back to the liquid storage location.

[0090] It should be noted that each joint in the conveying mechanism is connected to each joint on the welding head 11 via a corresponding conduit.

[0091] like Figure 4 As shown, the wire feeding mechanism 12 includes a wire feeding nozzle 121 and a wire feeding drive 122. The wire feeding nozzle 121 is used to clamp the welding wire and is connected to the welding head 11. The wire feeding drive 122 is disposed inside the rotating sleeve 65 and is fixedly connected to the rotating sleeve 65. The wire feeding drive 122 is connected to the welding wire and can store the welding wire. The wire feeding drive 122 can drive the welding wire to move towards the welding point to realize automatic supply of welding wire to the welding point.

[0092] Based on any of the above embodiments, the clamping device 2 will be further described; such as Figures 1 to 3 As shown, the clamping device 2 includes a clamping mounting part 21, a jaw 22, and a clamping drive. The clamping mounting part 21 has an axial through hole for inserting the weldment. The jaw 22 is radially slidably connected to the end face of the clamping mounting part 21 away from the fixed post 63. At least three jaws 22 are provided, and the jaws 22 are distributed at equal intervals along the same circumference for clamping the weldment. The clamping drive is connected to the jaw 22 and is used to drive the jaw 22 to move radially to release or clamp the weldment, so as to ensure the clamping stability of the weldment and improve the welding accuracy and welding quality of the welding equipment.

[0093] It should be noted that in this application, the welding head 11, clamping device 2, rotating sleeve 65, rotating base 62, and water-gas conductive slip ring 13 are arranged sequentially along the axial direction to ensure the high integration of the welding equipment and reduce the total volume occupied.

[0094] It should be noted that the various embodiments of this application can be arbitrarily combined into new embodiments, provided that the solutions do not conflict and the technical solutions can coexist.

[0095] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An argon arc welding apparatus characterized by comprising: include: Welding torch device (1) is used for argon arc welding of the workpiece; Clamping device (2) is used to clamp the welded parts; The displacement device is connected to the welding torch device (1) and is used to drive the welding torch device (1) to move parallel to the axial and radial directions, and to rotate around the central axis of the clamping device (2). The mounting mechanism (6) is used to mount the welding torch device (1), the clamping device (2) and the displacement device.

2. The TIG welding apparatus according to claim 1, characterized by The displacement device includes: The rotating mechanism (3) is connected to the welding torch device (1) and is used to drive the welding torch device (1) to rotate around the central axis of the clamping device (2); An axial displacement mechanism (4) is connected to the welding torch device (1) and is used to drive the welding torch device (1) to translate parallel to the axis direction. A radial displacement mechanism (5) is connected to the welding torch device (1) and is used to drive the welding torch device (1) to translate parallel to the radial direction.

3. The TIG welding apparatus according to claim 1, characterized by The welding torch device (1) includes: The welding head (11) includes a tungsten needle and an exhaust channel, the exhaust channel being arranged around the tungsten needle; Wire feeding mechanism (12) is used to feed conductive welding wire into the welding joint; A conveying mechanism is used to supply power to the welding head (11) and to convey argon gas and cooling liquid.

4. The TIG welding apparatus according to claim 3, characterized by The conveying mechanism includes: A water-air conductive slip ring (13) is fixedly connected to the bottom of the rotating base (62); The water-gas conductive slip ring (13) is provided with a gas flow path, a liquid inlet flow path, a liquid return flow path and a reserved flow path.

5. The TIG welding apparatus as defined in claim 2, wherein The installation mechanism (6) includes: A fixed base (61) is used to connect the clamping device (2); The rotating base (62) is rotatably connected to the fixed base (61) and connected to the welding torch device (1); The rotating mechanism (3) is located inside the fixed base (61) and is used to drive the rotating base (62) to rotate around the central axis of the fixed base (61); The axial displacement mechanism (4) is connected to the radial displacement mechanism (5); The radial displacement mechanism (5) is connected to the rotating base (62) via a mounting base (7), and the welding torch device (1) is connected to the axial displacement mechanism (4). Alternatively, the axial displacement mechanism (4) is connected to the rotating base (62) via a mounting base (7), and the welding torch device (1) is connected to the radial displacement mechanism (5).

6. The TIG welding apparatus according to claim 5, characterized by The rotating mechanism (3) includes: A rotary drive (31) is connected to a fixed base (61); The drive gear (32) is connected to the output shaft of the rotary drive (31); The driven gear (33) meshes with the driving gear (32) and is sleeved on the rotating base (62).

7. The TIG welding apparatus as defined in claim 5, wherein The installation mechanism (6) also includes: A fixing post (63) is used to connect the clamping device (2) to the fixing base (61); The bearing assembly (64) is located between the fixed base (61) and the rotating base (62), and includes at least two bearings distributed along the axial direction; A limiting part is provided on the fixed base (61) for axial and radial limiting of the bearing assembly (64); The rotating mechanism (3) includes: The rotary drive (31) is connected to the fixed base (61).

8. The TIG welding apparatus according to claim 7, characterized by The installation mechanism (6) also includes: A rotating sleeve (65) is fitted over the fixed post (63) and is used to connect the welding head (11); one end of the rotating sleeve (65) is rotatably connected to the clamping device (2) and the other end is rotatably connected to the fixed base (61); A connecting bracket (66) is used to fix the end of the fixing post (63) away from the welding head (11) to the fixing base (61); The fixed part of the rotary drive (31) is fixedly connected to the connecting bracket (66).

9. The TIG welding apparatus as defined in claim 1, wherein The clamping device (2) includes: The clamping and mounting component (21) is provided with an axial through hole for inserting the weldment; The jaws (22) are radially slidably connected to the clamping mounting (21) for clamping the welded parts; A clamping drive unit is connected to the gripper (22) and is used to drive the gripper (22) to move radially; The gripper (22) is provided in at least three parts, and the gripper (22) is distributed at equal intervals along the same circumference.

10. The TIG welding apparatus as defined in claim 4, wherein The conveying mechanism further includes: A power connector is located on the water-gas conductive slip ring (13) and is used to connect the welding head (11). Air inlet connector, which connects to the air inlet end of the gas flow path; The gas outlet connector is connected to the gas outlet end of the gas flow path. The first liquid inlet connector is connected to the liquid inlet end of the liquid inlet flow path; The first liquid outlet connector is connected to the liquid outlet end of the liquid inlet flow path; The second liquid inlet connector is connected to the liquid inlet end of the return flow path; The second liquid outlet connector is connected to the liquid outlet end of the return flow path.

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