Liquid inlet assembly welding apparatus

Abstract

This utility model discloses a welding device for a liquid inlet assembly, relating to the field of liquid inlet pipe welding technology. The device includes a workpiece rotation assembly that drives the liquid inlet assembly in a limiting assembly to rotate past a pre-clamping assembly, which then presses the liquid inlet pipe against the nut, ensuring proper assembly of the liquid inlet pipe and the nut. A status recognition assembly then identifies whether the assembly status of the pre-clamped liquid inlet assembly is normal, and the welding assembly only welds properly assembled liquid inlet assemblies. This prevents welding of liquid inlet assemblies with detached nuts, and / or liquid inlet assemblies with abnormal assembly states such as the weld ring of the liquid inlet pipe not contacting the nut, significantly improving the welding pass rate of the liquid inlet assembly.

Description

Technical Field

[0001] This utility model relates to the field of liquid inlet pipe welding technology, and in particular to a liquid inlet component welding equipment. Background Technology

[0002] The liquid inlet pipe in a refrigeration system is typically used to deliver high-pressure liquid refrigerant, cooled by the condenser, to the inlet of the throttling device. One end of the liquid inlet pipe is usually welded to a copper nut, which can be threaded to a connector with external threads, thus enabling a detachable connection between the liquid inlet pipe and the throttling device and ensuring that refrigerant does not leak at the connection point.

[0003] However, during the automatic welding process between the inlet pipe and the nut, the nut may fall off, or the axial distribution of the welding rings on the inlet pipe used for welding with the nut may be inconsistent, making it impossible for the welding rings to contact the nut, resulting in welding failure between the inlet pipe and the nut, which greatly reduces the welding qualification rate. Utility Model Content

[0004] In view of the various situations that lead to welding failures between the inlet pipe and the nut during the automatic welding process, which reduces the welding pass rate, this utility model is proposed to provide a welding device for inlet components that overcomes or at least partially solves the above problems.

[0005] Based on a first aspect of the present invention, a welding device for a liquid inlet assembly is provided, wherein the liquid inlet assembly includes a nut and a liquid inlet pipe inserted into the nut, and the device includes:

[0006] Workbench;

[0007] A workpiece rotating assembly is rotatably connected to the worktable;

[0008] At least one limiting component, wherein at least one limiting component is evenly distributed on the workpiece rotating component to limit the liquid inlet component, and the workpiece rotating component drives the limiting component to rotate when it is working;

[0009] A pre-compression assembly includes a pre-compression displacement unit and a pre-compression clamp for clamping the inlet pipe. The pre-compression displacement unit is disposed on the worktable, and the pre-compression clamp is pulsatorically connected to the pre-compression displacement unit. When the pre-compression displacement unit is working, it drives the inlet pipe held by the pre-compression clamp to perform a compression movement toward the nut.

[0010] A status recognition component, the status recognition component being disposed toward the limiting component, is used to identify a properly assembled liquid inlet component from at least one of the liquid inlet components placed by the limiting component;

[0011] A welding assembly is located on the workbench and has a welding area, wherein when the welding assembly is in operation, it welds a properly assembled liquid inlet assembly that has reached the welding area.

[0012] An optional utility model embodiment, wherein the limiting component comprises:

[0013] A limiting support component is connected to the workpiece rotation assembly via a transmission connection.

[0014] A limiting clamp is disposed on the limiting support member and is used to clamp or release the liquid inlet pipe;

[0015] A limiting base, wherein the limiting base has a limiting cavity;

[0016] The first limiting member is located on the bottom wall of the limiting cavity and is engaged with the nut for limiting.

[0017] The second limiting member has a limiting groove, which forms a limiting fit with the middle area of ​​the liquid inlet pipe along the radial direction of the liquid inlet pipe.

[0018] In one optional utility model, the limiting base has an identification channel that extends outward from the inner side of the limiting base, such that the welding ring and nut of the liquid inlet pipe located in the limiting cavity are exposed radially outward in the identification channel along the liquid inlet pipe; wherein,

[0019] When the limiting base rotates, the recognition channel and the status recognition component are aligned and engaged.

[0020] An optional utility model includes at least one of the following components made of ceramic material: the limiting base, the first limiting member, and the second limiting member.

[0021] An optional utility model embodiment, wherein the pre-compression displacement unit comprises:

[0022] A pre-compression base is provided on the worktable;

[0023] A pre-compression telescopic device, wherein the pre-compression telescopic device is connected to the pre-compression base;

[0024] A pre-compression lifting device, wherein the output shaft of the pre-compression lifting device is drivenly connected to the output shaft of the pre-compression telescopic device, and wherein the output shaft of the pre-compression lifting device is drivenly connected to the pre-compression clamp;

[0025] When the pre-compression telescopic device is working, it drives the pre-compression clamp to make a linear movement closer to or away from the limiting base. When the pre-compression lifting device is working, it drives the pre-compression clamp to make a lifting movement.

[0026] An optional utility model embodiment states that the status recognition component is mounted on the end face of the pre-compression base near the limiting base.

[0027] An optional utility model involves an arrangement where the number of limiting clamps on each limiting support is adapted to the number of pre-compression clamps, wherein the horizontal distance between two adjacent limiting clamps is equal to the horizontal distance between two adjacent pre-compression clamps.

[0028] In one optional utility model, the limiting support includes a first support portion and a second support portion connected to the first support portion. The length of the first support portion extends radially along the workpiece rotating assembly, and the second support portion is located radially outside the workpiece rotating assembly. The limiting clamp and the limiting base are disposed on the second support portion; wherein,

[0029] At least two of the limiting components are distributed at equal angles around the central axis of the workpiece rotation component, and the limiting fixture, the limiting base, the second limiting member, and the second support are symmetrically distributed about the central axis of the first support along the length direction.

[0030] An optional utility model embodiment includes the workpiece rotating assembly comprising:

[0031] A drive motor, which is connected to the worktable;

[0032] A divider, wherein the divider is connected to the drive motor, and the drive motor drives the divider to rotate when it is working;

[0033] A turntable is coaxially connected to the divider. The limiting components are installed on the radially outer side of the turntable. When there are at least two limiting components, the angle formed by two adjacent limiting components and the central axis of the turntable is an integer multiple of the division angle of the divider.

[0034] In one optional utility model, the liquid inlet assembly welding equipment further includes a tube removal assembly. The tube removal assembly includes a tube holder and a robotic arm. The tube holder is kinetically connected to the robotic arm. When the liquid inlet assembly, located within the limiting assembly, rotates, it first passes through the welding assembly and then through the robotic arm. When the robotic arm moves, it drives the tube holder to move closer to or away from the limiting assembly. When the tube holder moves, it releases or clamps the liquid inlet tube, thereby moving the liquid inlet tube outside the limiting assembly; and / or,

[0035] The liquid inlet component welding equipment also includes a material transfer clamping component. The material transfer clamping component is disposed on the worktable and is located in the limiting component. When the liquid inlet component rotates, it first passes through the welding component and then through the material transfer clamping component. When the material transfer clamping component is activated, it clamps the nut located in the limiting component and drives the nut to move outside the limiting component.

[0036] An optional utility model embodiment includes the following:

[0037] A material transfer rotary device, wherein the material transfer rotary device is disposed on the worktable;

[0038] The material transfer telescopic device is connected to the material transfer rotary device in a transmission manner. When the material transfer rotary device is working, it drives the material transfer telescopic device to perform reciprocating rotational motion.

[0039] A material transfer lifter is connected to the material transfer telescopic device. When the material transfer telescopic device is working, it drives the material transfer lifter to move horizontally closer to or away from the limiting component.

[0040] A material transfer clamp that clamps or releases the nut during operation.

[0041] In one optional utility model, the liquid inlet assembly further includes a cooling assembly, which is disposed on the worktable and located in the limiting assembly. When the liquid inlet assembly rotates, it first passes through the welding assembly and then through the cooling assembly, so as to cool down the welded liquid inlet assembly through the cooling assembly.

[0042] Compared with the prior art, this utility model includes a worktable, a workpiece rotation assembly, at least one limiting assembly, a pre-clamping assembly, a status recognition assembly, and a welding assembly. The workpiece rotation assembly is rotatably connected to the worktable. At least one limiting assembly is evenly distributed on the workpiece rotation assembly to limit the liquid inlet assembly. When the workpiece rotation assembly operates, it drives the limiting assembly to rotate. The pre-clamping assembly includes a pre-clamping displacement unit and a pre-clamping clamp for holding the liquid inlet pipe. The pre-clamping displacement unit is disposed on the worktable, and the pre-clamping clamp is tractively connected to the pre-clamping displacement unit. When the pre-clamping displacement unit operates, it drives the liquid inlet pipe held by the pre-clamping clamp to perform a clamping movement toward the nut. The status recognition assembly is disposed toward the limiting assembly to identify the properly assembled liquid inlet assembly from among the liquid inlet assemblies placed by at least one limiting assembly. The welding assembly is located on the worktable and has a welding area. When the welding assembly operates, it welds the properly assembled liquid inlet assembly that reaches the welding area. Therefore, the workpiece rotation assembly can drive the liquid inlet assembly in the limiting assembly to rotate through the pre-compression assembly, and the pre-compression assembly presses the liquid inlet pipe against the nut, ensuring that the liquid inlet pipe and the nut are properly assembled. Then, the status recognition assembly identifies whether the assembly status of the pre-compression liquid inlet assembly is normal, and causes the welding assembly to weld only the properly assembled liquid inlet assemblies. This prevents welding of liquid inlet assemblies with nut detachment, and / or liquid inlet assemblies with abnormal assembly states such as the weld ring of the liquid inlet pipe not contacting the nut, greatly improving the welding pass rate of the liquid inlet assemblies.

[0043] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0044] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings.

[0045] In the attached diagram:

[0046] Figure 1 This is a three-dimensional structural schematic diagram of a liquid inlet component welding device provided in an embodiment of this utility model;

[0047] Figure 2 yes Figure 1Enlarged structural diagram at point A;

[0048] Figure 3 This is a front view structural diagram of a limiting component provided in an embodiment of the present utility model;

[0049] Figure 4 This is a three-dimensional structural diagram of a pre-compression component provided in an embodiment of the present utility model;

[0050] Figure 5 This is a right-side structural schematic diagram of a pre-compression assembly provided in an embodiment of this utility model;

[0051] Figure 6 yes Figure 1 Enlarged structural diagram at point B;

[0052] Figure 7 This is a three-dimensional structural diagram of a material transfer clamping assembly provided in an embodiment of this utility model;

[0053] Figure 8 This is a right-side view of a material transfer clamping assembly provided in an embodiment of the present invention;

[0054] Figure 9 This is a flowchart illustrating the steps of a control method for a liquid inlet assembly welding device provided in an embodiment of this utility model.

[0055] Figure label:

[0056] 100. Worktable; 200. Workpiece rotation assembly; 210. Divider; 220. Turntable; 300. Limiting assembly; 310. Limiting support; 311. First support; 312. Second support; 320. Limiting fixture; 330. Limiting base; 3301. Limiting cavity; 3302. Identification channel; 340. First limiting component; 350. Second limiting component; 3501. Limiting groove; 400. Pre-clamping assembly; 410. Pre-clamping displacement unit; 411. Pre-clamping base; 412. Pre-clamping telescopic device; 4 13. Pre-compression lifter; 420. Pre-compression clamp; 500. Status recognition component; 600. Welding component; 700. Pipe removal component; 710. Pipe clamp; 720. Robotic arm; 730. First recycling bin; 800. Transfer clamping component; 810. Transfer rotary; 820. Transfer telescopic device; 830. Transfer lifter; 840. Transfer clamp; 850. Second recycling bin; 900. Cooling component; 1000. Liquid inlet component; 1010. Liquid inlet pipe; 1011. Welding ring; 1020. Nut. Detailed Implementation

[0057] Exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0058] The liquid inlet pipe in a refrigeration system is typically used to deliver high-pressure liquid refrigerant, cooled by the condenser, to the inlet of the throttling device. One end of the liquid inlet pipe is usually welded to a copper nut, which can be threaded to a connector with external threads, thus enabling a detachable connection between the liquid inlet pipe and the throttling device and ensuring that refrigerant does not leak at the connection point.

[0059] However, during the automatic welding process between the inlet pipe and the nut, the nut may fall off, or the axial distribution of the welding rings on the inlet pipe used for welding with the nut may be inconsistent, making it impossible for the welding rings to contact the nut, resulting in welding failure between the inlet pipe and the nut, which greatly reduces the welding qualification rate.

[0060] Based on the above-mentioned technical problems, this utility model embodiment is proposed. This utility model embodiment may include a worktable, a workpiece rotation assembly, at least one limiting assembly, a pre-clamping assembly, a status recognition assembly, and a welding assembly. The workpiece rotation assembly is rotatably connected to the worktable. At least one of the limiting assemblies is evenly distributed on the workpiece rotation assembly to limit the liquid inlet assembly. When the workpiece rotation assembly is working, it drives the limiting assemblies to rotate. The pre-clamping assembly includes a pre-clamping displacement unit and a pre-clamping clamp for holding the liquid inlet pipe. The pre-clamping displacement unit is disposed on the worktable, and the pre-clamping clamp is tractively connected to the pre-clamping displacement unit. When the pre-clamping displacement unit is working, it drives the liquid inlet pipe held by the pre-clamping clamp to perform a clamping movement towards the nut. The status recognition assembly is disposed towards the limiting assembly to identify the properly assembled liquid inlet assembly from among the liquid inlet assemblies placed by at least one of the limiting assemblies. The welding assembly is located on the workbench and has a welding area, wherein when the welding assembly is working, it welds the properly assembled liquid inlet assembly that reaches the welding area.

[0061] Therefore, the workpiece rotation assembly can drive the liquid inlet assembly in the limiting assembly to rotate through the pre-compression assembly, and the pre-compression assembly presses the liquid inlet pipe against the nut, ensuring that the liquid inlet pipe and the nut are properly assembled. Then, the status recognition assembly identifies whether the assembly status of the pre-compression liquid inlet assembly is normal, and causes the welding assembly to weld only the properly assembled liquid inlet assemblies. This prevents welding of liquid inlet assemblies with nut detachment, and / or liquid inlet assemblies with abnormal assembly states such as the weld ring of the liquid inlet pipe not contacting the nut, greatly improving the welding pass rate of the liquid inlet assemblies.

[0062] Reference Figure 1-8 As shown, this embodiment of the invention provides a welding device for a liquid inlet assembly. The liquid inlet assembly 1000 may include a nut 1020 and a liquid inlet pipe 1010 inserted into the nut 1020. The liquid inlet pipe 1010 is further provided with a welding ring 1011, which is used for welding to the nut 1020. That is, when one end of the liquid inlet pipe 1010 is fully inserted into the nut 1020, the welding ring 1011 on the liquid inlet pipe 1010 forms surface contact with the nut 1020, thereby providing a welding area. In other words, the liquid inlet pipe 1010, the welding ring 1011, and the nut 1020 constitute the liquid inlet assembly 1000.

[0063] The liquid inlet assembly welding equipment may include a worktable 100, a workpiece rotation assembly 200, at least one limiting assembly 300, a pre-clamping assembly 400, a status recognition assembly 500, and a welding assembly 600. The worktable 100 provides structural support for the other components of the liquid inlet assembly welding equipment. The workpiece rotation assembly 200 is rotatably connected to the worktable 100, and at least one of the limiting assemblies 300 is evenly distributed on the workpiece rotation assembly 200 to limit the liquid inlet assembly 1000. When the workpiece rotation assembly 200 is working, it drives the limiting assembly 300 to rotate. For example, the liquid inlet assembly 1000 can be placed into the limiting assembly 300 by the feeding assembly, and then the limiting assembly 300 can be rotated by the workpiece rotating assembly 200, thereby rotating the limiting assembly 300, in which the liquid inlet assembly 1000 is placed, to a region close to the pre-compression assembly 400, for example, to the radial axis between the center of the pre-compression assembly 400 and the center of the workpiece rotating assembly 200.

[0064] The pre-compression assembly 400 may include a pre-compression displacement unit 410 and a pre-compression clamp 420 for clamping the inlet pipe 1010. The pre-compression displacement unit 410 is disposed on the worktable 100, and the pre-compression clamp 420 is pultrusively connected to the pre-compression displacement unit 410. When the pre-compression displacement unit 410 is working, it can drive the pre-compression clamp 420 to move, thereby realizing the position adjustment of the pre-compression clamp 420 relative to the limiting assembly 300. For example, when the pre-compression displacement unit 410 is working, it drives the inlet pipe 1010, which is held by the pre-compression clamp 420, to make a compression movement toward the nut 1020. Therefore, the pre-compression displacement unit 410 and the pre-compression clamp 420 can be used to press the liquid inlet pipe 1010 in the limiting assembly 300 against the nut 1020, ensuring that the liquid inlet pipe 1010 and the nut 1020 are properly assembled. This avoids the situation where the welding ring 1011 on the liquid inlet pipe 1010 cannot contact the nut 1020, resulting in welding failure, if the liquid inlet pipe 1010 and the nut 1020 are not properly assembled.

[0065] The status recognition component 500 is positioned towards the limiting component 300 to identify properly assembled liquid inlet components 1000 from those placed by at least one of the limiting components 300. The welding component 600 is located on the worktable 100 and has a welding area. When the welding component 600 is in operation, it welds properly assembled liquid inlet components 1000 that reach the welding area. The welding component 600 includes at least a welding torch, which can be positioned horizontally. Thus, the status recognition component 500 can pre-screen improperly assembled liquid inlet components 1000, where improper assembly may include: missing nut 1020; welding ring 1011 not contacting the nut 1020. This allows the properly assembled liquid inlet assembly 1000 (with the nut 1020 and the liquid inlet pipe 1010 in place, and the welding ring 1011 in contact with the nut 1020) to be welded by the welding assembly 600. The improperly assembled liquid inlet assembly 1000 can be driven by the rotation of the workpiece rotating assembly 200 to reach the welding area of ​​the welding assembly 600, and then continue to move away from the welding area. This ensures that the welding assembly 600 only welds the properly assembled liquid inlet assemblies 1000, thereby greatly improving the welding qualification rate of the liquid inlet assembly 1000 and increasing the welding efficiency of the liquid inlet assembly welding equipment.

[0066] In one or more embodiments of the utility model, reference is made to Figure 1 , Figure 2 as well as Figure 3As shown, the limiting component 300 may include a limiting support 310, a limiting clamp 320, a limiting base 330, a first limiting member 340, and a second limiting member 350. The limiting support 310 is connected to the workpiece rotating assembly 200 for transmission. The limiting clamp 320 is disposed on the limiting support 310 for clamping or releasing the liquid inlet pipe 1010. The limiting base 330 has a limiting cavity 3301. The first limiting member 340 is located on the bottom wall of the limiting cavity 3301 and is limited in fit with the nut 1020. The second limiting member 350 has a limiting groove 3501, which forms a limiting fit with the middle area of ​​the liquid inlet pipe 1010 along the radial direction of the liquid inlet pipe 1010.

[0067] In this embodiment of the invention, the limiting support 310 provides structural support for the limiting clamp 320, the limiting base 330, and the second limiting member 350. The limiting support 310 is connected to the workpiece rotating assembly 200, meaning it can be rotated by the workpiece rotating assembly 200. For example, the limiting support 310 can be connected to a rotatable component within the workpiece rotating assembly 200. The limiting clamp 320 is mounted on the limiting support 310 and, when in operation, is used to clamp or release the inlet pipe 1010 in the liquid inlet assembly 1000.

[0068] During the rotation of the workpiece rotating assembly 200, the limiting clamp 320 clamps the liquid inlet pipe 1010 to prevent it from shifting position or falling out of the limiting assembly 300. When the pre-clamping clamp 420 clamps the liquid inlet pipe 1010, the limiting clamp 320 releases the liquid inlet pipe 1010, thus facilitating the pre-clamping clamp 420 to press the liquid inlet pipe 1010 against the nut 1020. The limiting clamp 320 can be a swing gripper or similar structure, powered by electricity or pneumatic pressure; no further limitations are specified here.

[0069] The limiting base 330 has a limiting cavity 3301, which is used to accommodate the liquid inlet assembly 1000. That is, the nut 1020 and the liquid inlet pipe 1010 can be initially assembled in the limiting cavity 3301 while the feeding assembly is operating: first, the nut 1020 is placed in the limiting cavity 3301, and then the liquid inlet pipe 1010 is axially inserted into the nut 1020. The first limiting member 340 is located on the bottom wall of the limiting cavity 3301 and is fitted with the nut 1020 for limiting. In one example, the first limiting member 340 is provided with a positioning groove that matches the shape of the outer surface of the nut 1020, or the first limiting member 340 is provided with a positioning step that matches the shape of the inner surface of the nut 1020, etc.

[0070] The second limiting member 350 has a limiting groove 3501, which forms a radial limiting fit with the middle region of the liquid inlet pipe 1010. This can be understood as the limiting groove 3501 having an opening radially along the liquid inlet pipe 1010. During the assembly process with the nut 1020, the liquid inlet pipe 1010 can be assembled into the limiting groove 3501 radially. The middle region of the liquid inlet pipe 1010 can be understood as the region of the liquid inlet pipe 1010 excluding its two ends. For example, the second limiting member 350 can be mounted on the limiting support member 310 or on the limiting clamp 320.

[0071] Based on the above structure, the liquid inlet pipe 1010 can be stably clamped by the limiting clamp 320, facilitating the rotation of the liquid inlet pipe 1010 for switching welding processes. Furthermore, under the combined limiting action of the first limiting member 340 and the second limiting member 350, the positional stability of the liquid inlet pipe 1010 can be improved when the limiting clamp 320 releases it, and the radial offset caused by the excessive axial length of the liquid inlet pipe 1010 can be reduced. This improves the clamping position accuracy of the pre-clamping clamp 420 when clamping the liquid inlet pipe 1010.

[0072] In one or more embodiments of the utility model, reference is made to Figure 2 and Figure 3As shown, the limiting base 330 has an identification channel 3302, which extends outward from the inside of the limiting base 330, so that the welding ring 1011 and nut 1020 of the liquid inlet pipe 1010 located in the limiting cavity 3301 are exposed radially outward in the identification channel 3302 along the liquid inlet pipe 1010. When the limiting base 330 rotates, the identification channel 3302 is directly aligned with the status identification component 500.

[0073] In this embodiment of the present invention, the limiting base 330 has an identification channel 3302, which extends outward from the inner side of the limiting base 330. This can also be understood as the limiting cavity 3301 having openings distributed radially therein, with these openings forming the identification channel 3302. Furthermore, through the identification channel 3302, the welded ring 1011 and nut 1020 of the liquid inlet pipe 1010 located in the limiting cavity 3301 can be exposed radially. In other words, the welded ring 1011 and nut 1020 in the limiting cavity 3301 can be clearly observed from the radially outer side of the limiting base 330.

[0074] When the limiting base 330 is rotated, the identification channel 3302 engages directly with the status identification component 500. This means the identification channel 3302 can rotate to the area directly opposite the status identification component 500. Therefore, based on this structural design, the status identification component 500 can clearly identify whether the assembly status between the pre-tightened nut 1020 and the liquid inlet pipe 1010 is normal. Furthermore, the radial inner wall of the limiting base 330 can provide a background for the status identification component 500, thereby improving the consistency of the background. For example, the radial inner wall of the limiting base 330 can be white, which can improve the identification accuracy of the status identification component 500 and further improve the welding qualification rate of the liquid inlet component 1000.

[0075] In one or more embodiments of the utility model, at least one of the following components is made of ceramic material: the limiting base 330, the first limiting member 340, and the second limiting member 350.

[0076] In this embodiment of the invention, considering that the welding of the liquid inlet pipe 1010 and the nut 1020 will generate high temperatures, using ceramic materials to manufacture at least one of the above-mentioned components can improve the chemical and structural stability of the limiting base 330, the first limiting member 340, and the second limiting member 350 under high-temperature environments while reducing component costs. It can also improve the service life of the limiting base 330, the first limiting member 340, and the second limiting member 350.

[0077] In one or more embodiments of the utility model, reference is made to Figure 4 and Figure 5 As shown, the pre-compression displacement unit 410 may include a pre-compression base 411, a pre-compression telescopic device 412, and a pre-compression lifter 413. The pre-compression base 411 is disposed on the worktable 100, and the pre-compression telescopic device 412 is connected to the pre-compression base 411. The pre-compression lifter 413 is drivenly connected to the output shaft of the pre-compression telescopic device 412, wherein the output shaft of the pre-compression lifter 413 is drivenly connected to the pre-compression clamp 420. When the pre-compression telescopic device 412 is working, it drives the pre-compression clamp 420 to make linear movements toward or away from the limiting base 330, and when the pre-compression lifter 413 is working, it drives the pre-compression clamp 420 to make lifting movements.

[0078] In this embodiment of the invention, the pre-clamping base 411 provides structural support for components such as the pre-clamping telescopic device 412, the pre-clamping lifting device 413, and the pre-clamping clamp 420. The pre-clamping base 411 is mounted on the worktable 100. For example, the pre-clamping base 411 can be detachably connected to the worktable 100 via bolts, screws, or other components. The pre-clamping telescopic device 412 controls the device to perform telescopic movement (also known as reciprocating linear motion) in the horizontal direction. The pre-clamping lifting device 413 is drively connected to the output shaft of the pre-clamping telescopic device 412. This means that when the pre-clamping telescopic device 412 is working, it can drive the pre-clamping lifting device 413 to synchronously perform telescopic movement in the horizontal direction. For example, the output shaft of the pre-clamping telescopic device 412 and the pre-clamping lifting device 413 can be detachably connected. The pre-compression clamp 420 is connected to the output shaft of the pre-compression lift 413. This means that when the pre-compression lift 413 is working, it can drive the pre-compression clamp 420 to move vertically in sync.

[0079] Therefore, when the limiting component 300 housing the liquid inlet assembly 1000 rotates to the pre-compression area corresponding to the pre-compression component 400, the pre-compression telescopic device 412 can drive the pre-compression clamp 420 to make a linear movement close to the limiting base 330. When the compression telescopic device is in the fully extended state, the pre-compression clamp works to clamp the liquid inlet pipe 1010. Then, the pre-compression lifting device 413 actuates to drive the pre-compression clamp 420 to make a downward movement, thereby allowing the liquid inlet pipe 1010 to press the nut 1020 axially. Subsequently, the pre-compression clamp 420 releases the liquid inlet pipe 1010, the pre-compression lifting device 413 actuates to drive the pre-compression clamp 420 to make an upward movement, or the pre-compression telescopic device 412 drives the pre-compression clamp 420 to make a retracting movement. Finally, the pre-compression telescopic device 412 drives the pre-compression clamp 420 to retract, or the pre-compression lifting device 413 drives the pre-compression clamp 420 to rise.

[0080] Based on the structural cooperation of the pre-compression telescopic device 412, the pre-compression lifting device 413, and the pre-compression clamp 420, the liquid inlet component 1000 in the current pre-compression area of ​​the limiting component 300 can be quickly pre-compressed without reducing the structural complexity of the pre-compression component 400 or affecting other process operations of the liquid inlet component 1000 in other limiting components 300, thereby improving the welding yield of the liquid inlet component 1000.

[0081] In one or more embodiments of the utility model, reference is made to Figure 4 and Figure 5 As shown, the status recognition component 500 is installed on the end face of the pre-compression base 411 near the limiting base 330.

[0082] In this embodiment of the present invention, the status identification component 500 is installed on the pre-compression base 411. This can also be understood as the liquid inlet component 1000 entering the pre-compression area being simultaneously identified by the status identification component 500. In other words, the status identification component 500 and the pre-compression component 400 can share an operating station. Based on the above structural design, by sharing the support structure of the status identification component 500 and the pre-compression component 400, the structural complexity of the liquid inlet component welding equipment can be further reduced. Furthermore, by sharing the operating station of the status identification component 500 and the pre-compression component 400, the integration of the operating procedures of the liquid inlet component welding equipment can be improved, and layout space can be reserved for other operating procedures, thus reducing the area occupied by the liquid inlet component welding equipment.

[0083] The status recognition component 500 includes at least an image acquisition device. After the liquid inlet component 1000 is pre-tightened by the pre-tightening component 400, the status recognition component 500 can acquire images of the liquid inlet component 1000 radially. By performing image recognition on the acquired assembly images, the liquid inlet component 1000 that is assembled normally or abnormally can be distinguished.

[0084] In one or more embodiments of the utility model, the number of limiting clamps 320 on each limiting support 310 is adapted to the number of pre-compression clamps 420, wherein the horizontal distance between two adjacent limiting clamps 320 is equal to the horizontal distance between two adjacent pre-compression clamps 420.

[0085] In this embodiment of the invention, the number of limiting clamps 320 on each limiting support 310 can be consistent with the number of pre-clamping clamps 420. Furthermore, the horizontal distance between two adjacent limiting clamps 320 is equal to the horizontal distance between two adjacent pre-clamping clamps. That is, when the limiting component 300 reaches the pre-clamping area of ​​the pre-clamping component 400, the limiting component 300 can simultaneously drive at least two of the liquid inlet components 1000 into the pre-clamping area.

[0086] Based on the above structural design, the pre-compression clamp 420, which is adapted to the number of liquid inlet components 1000, can simultaneously clamp or release at least two liquid inlet components 1000 located in the pre-compression area under the drive of the pre-compression displacement unit 410. Thus, under the action of a single pre-compression telescopic device 412 and a single pre-compression lifting device 413, the pre-compression of multiple liquid inlet components 1000 can be achieved, thereby improving the pre-compression efficiency of the liquid inlet components 1000 and improving the welding efficiency of the liquid inlet component welding equipment.

[0087] In one or more embodiments of the utility model, reference is made to Figure 2As shown, the limiting support 310 includes a first support portion 311 and a second support portion 312 connected to the first support portion 311. The length of the first support portion 311 extends radially along the workpiece rotation assembly 200, and the second support portion 312 is located radially outside the workpiece rotation assembly 200. The limiting clamp 320 and the limiting base 330 are disposed on the second support portion 312. At least two limiting components 300 are equidistantly distributed around the central axis of the workpiece rotation assembly 200, and the limiting clamp 320, the limiting base 330, the second limiting member 350, and the second support portion 312 are symmetrically distributed about the first support portion 311 along its length direction.

[0088] In this embodiment of the present invention, the limiting support 310 may include a first support portion 311 and a second support portion 312 connected to the first support portion 311, wherein the first support portion 311 and the second support portion 312 may be an integral structure. The length of the first support portion 311 extends radially along the workpiece rotating assembly 200. The second support portion 312 is located radially outside the workpiece rotating assembly 200. The limiting clamp 320 and the limiting base 330 are disposed on the second support portion 312, thereby facilitating the placement of the limiting clamp 320 and the limiting base 330 on the second support portion 312 and their axial distribution along the workpiece rotating assembly 200.

[0089] When at least two limiting components 300 are provided, the at least two limiting components 300 are distributed at equal angles around the central axis of the workpiece rotation assembly 200. This equal-angle distribution of the limiting components 300 allows their weight to be evenly distributed circumferentially around the workpiece rotation assembly 200, reducing the center-of-gravity offset of the workpiece rotation assembly 200. Furthermore, the limiting fixture 320, the limiting base 330, the second limiting member 350, and the second support portion 312 are symmetrically distributed about the central axis along the length direction of the first support portion 311, improving the uniformity of the center-of-gravity distribution position of all the limiting components 300. For example, it can be ensured that the center of gravity of each limiting component 300 is located on the central axis along the length direction of the first support portion 311, thereby further reducing the center-of-gravity offset of the workpiece rotation assembly 200 and avoiding excessive unbalanced inertial forces that could affect the service life of the workpiece rotation assembly 200.

[0090] In one or more embodiments of the utility model, reference is made to Figure 1 , Figure 2 as well as Figure 6As shown, the workpiece rotation assembly 200 may include a drive motor, a divider 210, and a turntable 220. The drive motor is connected to the worktable 100. The divider 210 is driven by the drive motor, and the drive motor drives the divider 210 to rotate when it is working. The turntable 220 is coaxially connected to the divider 210. The limiting assembly 300 is installed on the radially outer side of the turntable 220. When there are at least two limiting assemblies 300, the angle formed by two adjacent limiting assemblies 300 and the central axis of the turntable 220 is an integer multiple of the division angle of the divider 210.

[0091] In this embodiment of the invention, the drive motor provides power for the rotation of the turntable 220, and the divider 210 is connected to the drive motor. When the drive motor is working, it can drive the divider 210 to rotate, and the continuous rotational driving force output by the drive motor can be converted into intermittent rotational driving force through the divider 210. The drive motor is connected to the worktable 100, and the divider 210 can also be connected to the worktable 100. The turntable 220 and the divider 210 are coaxially connected; for example, the turntable 220 is located above the divider 210, and the central axis of the turntable 220 coincides with the central axis of the divider 210. Therefore, during the rotation of the turntable 220 driven by the divider 210, the turntable 220 can perform a periodic action of rotating, stopping, rotating, and stopping.

[0092] The limiting component 300 can be installed on the radially outer side of the turntable 220, so that when the turntable 220 is driven to repeat the above-mentioned periodic actions, the limiting component 300 can be synchronously driven to perform a periodic action of rotation, stop, rotation, and stop. When there are at least two limiting components 300, the angle formed by the limiting components 300 at adjacent positions with the central axis of the turntable 220 is an integer multiple of the division angle of the divider 210. In other words, when the division angle is 30 degrees, the angle formed by the two limiting components 300 at adjacent positions with the central axis of the turntable 220 can be 30 degrees or 60 degrees, etc. Therefore, the operating position of the liquid inlet component welding equipment can be set according to the division angle of the turntable 220. For example, when the turntable 220 drives the limiting component 300 into the pre-compression area of ​​the pre-compression component 400, the next limiting component 300 at its adjacent position just enters the welding area of ​​the welding component 600. Alternatively, the previous limiting component 300 in its adjacent position may be exactly in the feeding area of ​​the feeding component.

[0093] Therefore, based on the above structural design, all processes required for welding the liquid inlet assembly 1000 can be integrated around the turntable 220, reducing the space occupied by the liquid inlet assembly welding equipment. Furthermore, it can reduce the waiting time of the liquid inlet assembly 1000 when the turntable 220 is stationary, further improving the welding efficiency of the liquid inlet assembly welding equipment.

[0094] In one or more embodiments of the utility model, reference is made to Figure 1 As shown, the liquid inlet assembly welding equipment may further include a pipe removal assembly 700, which may include a pipe clamp 710 and a robotic arm 720. The pipe clamp 710 is kinetically connected to the robotic arm 720 and is used to clamp the liquid inlet pipe 1010. When the liquid inlet assembly 1000 located in the limiting assembly 300 rotates, it first passes through the welding assembly 600 and then through the robotic arm 720. The pipe clamp 710 and the robotic arm 720 cooperate to remove the liquid inlet pipe 1010 from the limiting assembly 300 if the assembly is faulty.

[0095] When the robotic arm 720 moves, it drives the pipe clamp 710 to move closer to or further away from the limiting component 300. When the pipe clamp 710 moves, it releases or clamps the inlet pipe 1010 to move the inlet pipe 1010 outside the limiting component 300. For example, when the improperly assembled inlet component 1000 approaches the robotic arm 720 (or the improperly assembled inlet component 1000 reaches the material transfer area), the robotic arm 720 drives the pipe clamp 710 to move closer to the limiting component 300. The pipe clamp 710 approaches the limiting component 300 in a released state and, along the radial direction of the inlet pipe 1010, clamps the inlet pipe 1010. Then, the robotic arm 720 drives the tube clamp 710 to move away from the limiting component 300. The tube clamp 710 can thus move the clamped inlet tube 1010 outside the limiting component 300, thereby removing the abnormally assembled inlet tube 1010.

[0096] The robotic arm 720 may include a six-axis robotic arm 720 or similar structures, allowing for the pre-disengagement of the inlet pipe 1010 from the nut 1020 when the robotic arm 720 drives the pipe clamp 710 to remove the inlet pipe 1010. For example, when the pipe clamp 710 is holding the inlet pipe 1010, the robotic arm 720 can first drive the pipe clamp 710 to move vertically upwards, causing the end of the inlet pipe 1010 to disengage from the nut 1020. Then, it can drive the pipe clamp 710 to move horizontally away from the limiting component 300. For example, a first recycling box 730 can be provided in the area of ​​the workbench 100 near the robotic arm 720. The first recycling box 730 is used to recycle the abnormally assembled liquid inlet tube 1010. When the tube clamp 710 releases its grip on the liquid inlet tube 1010 under the position control of the robotic arm 720, the liquid inlet tube 1010 can be placed in the first recycling box 730, thereby realizing the recycling of the defective liquid inlet tube 1010.

[0097] In another implementation, refer to Figure 1 , Figure 7 as well as Figure 8 As shown, the liquid inlet assembly welding equipment may further include a material transfer clamping assembly 800. The material transfer clamping assembly 800 is used to remove the nut 1020 from the improperly assembled liquid inlet assembly 1000. For example, the material transfer clamping assembly 800 is disposed on the worktable 100 and located within the limiting assembly 300. When the liquid inlet assembly 1000 rotates, it first passes through the welding assembly 600 and then through the material transfer clamping assembly 800. When the improperly assembled liquid inlet assembly 1000 moves to an area close to the material transfer clamping assembly 800 (also referred to as the improperly assembled liquid inlet assembly 1000 reaching the material transfer area), the material transfer clamping assembly 800 clamps the nut 1020 located in the limiting assembly 300 and moves the nut 1020 outside the limiting assembly 300. For example, a second recycling box 850 can be provided in the area of ​​the workbench 100 near the material transfer clamping assembly 800. The second recycling box 850 is used to recycle nuts 1020 with assembly defects. When the material transfer clamping assembly 800 clamps and transfers the nut 1020 in the limiting assembly 300 to the top of the second recycling box 850, it can release the nut 1020 with assembly defects. At this time, the nut 1020 is placed in the second recycling box 850, thereby realizing the recycling of defective nuts 1020.

[0098] Based on the above structure, the abnormally assembled liquid inlet pipe 1010 and / or nut 1020 can be removed from the limiting component 300, which can reduce the space occupied by the abnormally assembled liquid inlet component 1000 in the limiting component 300, and eliminates the need for manual removal of defective products, thereby improving the welding efficiency of the liquid inlet component welding equipment.

[0099] In one or more embodiments, refer to Figure 7 and Figure 8 As shown, the material transfer clamping assembly 800 may include a material transfer rotary device 810, a material transfer telescopic device 820, a material transfer lifting device 830, and a material transfer clamp 840. The material transfer rotary device 810 is disposed on the worktable 100. The material transfer telescopic device 820 is convexly connected to the material transfer rotary device 810. When the material transfer rotary device 810 is working, it drives the material transfer telescopic device 820 to perform a reciprocating rotational motion. The material transfer lifting device 830 is convexly connected to the material transfer telescopic device 820. When the material transfer telescopic device 820 is working, it drives the material transfer lifting device 830 to perform a horizontal telescopic motion (reciprocating linear motion) towards or away from the limiting assembly 300. When the material transfer clamp 840 is working, it clamps or releases the nut 1020.

[0100] For example, when the improperly assembled liquid inlet assembly 1000 moves to an area close to the transfer clamping assembly 800 (or, as the improperly assembled liquid inlet assembly 1000 reaches the transfer area), the transfer rotator 810 drives the transfer clamp 840 to rotate to face the limiting assembly 300. The transfer rotator 810 can be a rotary cylinder or similar device. Then, the transfer telescopic device 820 drives the transfer clamp 840 to extend and retract closer to the limiting assembly 300. When the transfer telescopic device 820 is fully extended, the transfer lifting device 830 drives the transfer clamp 840 to move, causing the released transfer clamp 840 to descend along the axial direction of the nut 1020 and clamp the nut 1020. After clamping the nut 1020, the transfer lifting device 830 drives the transfer clamp 840 to rise. Then, the transfer telescopic device 820 drives the transfer clamp 840 to retract away from the limiting component 300, thus not affecting the next rotation of the limiting component 300. When the transfer telescopic device 820 is fully retracted, the transfer rotary device 810 drives the transfer clamp 840 to rotate away from the limiting component 300 (or, as some might say, to move closer to the second recycling box 850). Finally, the transfer clamp 840 releases the nut 1020, allowing the nut 1020 to be placed in the second recycling box 850.

[0101] Based on the above structure, the material transfer rotary device 810, material transfer telescopic device 820, material transfer lifting device 830 and material transfer clamp 840 can be linked together to automatically remove the abnormally assembled nut 1020 from the limiting component 300. While ensuring the simple structure of the material transfer clamp component 800, no manual intervention is required, which improves the welding efficiency of the liquid inlet component welding equipment.

[0102] In one or more embodiments of the utility model, reference is made to Figure 1 As shown, the liquid inlet assembly 1000 also includes a cooling assembly 900, which is disposed on the worktable 100 and located within the limiting assembly 300. When the liquid inlet assembly 1000 rotates, it first passes through the welding assembly 600 and then through the cooling assembly 900, thereby cooling the welded liquid inlet assembly 1000. The next step after welding the liquid inlet assembly 1000 is to install the plastic nut onto the nut 1020 of the liquid inlet assembly 1000. If the temperature is too high, the liquid inlet pipe 1010 may twist and deform during the installation of the plastic nut.

[0103] Therefore, by providing the cooling component 900, the welded liquid inlet component 1000 can be cooled down, allowing the high-temperature liquid inlet pipe 1010 to quickly cool to room temperature, thereby improving the structural stability of the liquid inlet component 1000. In one or more embodiments, the cooling component 900 may be a combination of components involved in methods such as liquid nitrogen blowing for cooling. Those skilled in the art can determine the specific cooling method according to actual design requirements, and no further limitations are made here.

[0104] In the above-described embodiments of the utility model, both the telescopic device and the lifting device can be linear actuators. For example, both the telescopic device and the lifting device can be cylinders, electric cylinders, linear motor modules, etc., without further limitations.

[0105] In summary, this utility model discloses a liquid inlet component welding device, which may include a worktable 100, a workpiece rotation component 200, at least one limiting component 300, a pre-clamping component 400, a status recognition component 500, and a welding component 600. The workpiece rotation component 200 is rotatably connected to the worktable 100, and at least one of the limiting components 300 is evenly distributed on the workpiece rotation component 200 to limit the liquid inlet component 1000. When the workpiece rotation component 200 is working, it drives the limiting components 300 to rotate. The pre-compression assembly 400 includes a pre-compression displacement unit 410 and a pre-compression clamp 420 for clamping the liquid inlet pipe 1010. The pre-compression displacement unit 410 is disposed on the worktable 100, and the pre-compression clamp 420 is pulsatorically connected to the pre-compression displacement unit 410. When the pre-compression displacement unit 410 is working, it drives the liquid inlet pipe 1010 held by the pre-compression clamp 420 to perform a compression movement toward the nut 1020. The status recognition assembly 500 is disposed toward the limiting assembly 300 to identify a properly assembled liquid inlet assembly 1000 from at least one liquid inlet assembly 1000 placed by the limiting assembly 300. The welding assembly 600 is located on the worktable 1000 and has a welding area. When the welding assembly 600 is working, it welds properly assembled liquid inlet assemblies 1000 that have reached the welding area. Therefore, the workpiece rotating assembly 200 can drive the liquid inlet assembly 1000 in the limiting assembly 300 to rotate through the pre-compression assembly 400, and the pre-compression assembly 400 presses the liquid inlet pipe 1010 against the nut 1020, ensuring that the liquid inlet pipe 1010 and the nut 1020 are properly assembled. Then, the status recognition assembly 500 identifies whether the assembly status of the pre-compression liquid inlet assembly 1000 is normal, and causes the welding assembly 600 to weld only the properly assembled liquid inlet assemblies 1000. Thus, liquid inlet assemblies 1000 with abnormal assembly states, such as the nut 1020 falling off, and / or the welding ring 1011 of the liquid inlet pipe 1010 not contacting the nut 1020, are not welded, greatly improving the welding qualification rate of the liquid inlet assembly 1000.

[0106] Reference Figure 9 As shown in the figure, this utility model embodiment also discloses a control method for a liquid inlet component welding device, wherein the liquid inlet component welding device includes the liquid inlet component welding device described in any of the above utility model embodiments, and the control method may include:

[0107] S901. When the pre-compression step of the pre-compression component on the liquid inlet component is completed, the state recognition component performs image acquisition on the pre-compressed liquid inlet component to obtain an assembly image.

[0108] In this embodiment of the invention, the SuSohu liquid inlet assembly welding equipment further includes a controller, which is electrically connected to the workpiece rotation assembly 200, the pre-clamping assembly 400, the status recognition assembly 500, and the welding assembly 600, respectively. Thus, the controller can control the working state of each assembly. After controlling the pre-clamping assembly 400 to clamp the liquid inlet assembly 1000, the controller can control the status recognition assembly 500 to acquire images of the pre-clamped liquid inlet assembly 1000 and obtain assembly images.

[0109] S902. Perform image recognition on the assembly image to determine the assembly state of the pre-compressed liquid inlet assembly, the assembly state including: normal assembly and abnormal assembly.

[0110] In this embodiment of the invention, image recognition of the assembly image may include: comparing the assembly image with a reference image. For example, the reference image may be an assembly image acquired when the liquid inlet component 1000 is in a normal assembly state. Since the assembly image of the liquid inlet component 1000 has few image features, the image similarity between the currently acquired assembly image and the reference image can be calculated, and the image similarity can be used to determine whether the liquid inlet component 1000 associated with the current assembly image is properly assembled. For example, those skilled in the art can determine a similarity threshold based on the similarity difference between multiple normally assembled assembly images and multiple abnormally assembled assembly images. If the image similarity is greater than or equal to the similarity threshold, the assembly state of the pre-compressed liquid inlet component 1000 is determined to be normally assembled. If the image similarity is less than the similarity threshold, the assembly state of the pre-compressed liquid inlet component 1000 is determined to be abnormally assembled.

[0111] S903. If the assembly state is determined to be an assembly abnormality, when the liquid inlet component 1000 that detects the assembly abnormality reaches the welding area, the state of the welding component remains stationary.

[0112] S904. If the assembly state is determined to be normal, when the normally assembled liquid inlet component is detected to have reached the welding area, the welding component is controlled to weld the normally assembled liquid inlet component.

[0113] In this embodiment of the present invention, the properly assembled liquid inlet assembly 1000 is welded by the welding assembly 600. The improperly assembled liquid inlet assembly 1000 can be driven by the rotation of the workpiece rotating assembly 200 to reach the welding area of ​​the welding assembly 600, and then continue to move away from the welding area of ​​the welding assembly 600. The welding assembly 600 is controlled to weld only the properly assembled liquid inlet assembly 1000, thereby greatly improving the welding qualification rate of the liquid inlet assembly 1000.

[0114] In summary, the workpiece rotating assembly 200 can drive the liquid inlet assembly 1000 in the limiting assembly 300 to rotate through the pre-compression assembly 400, and the pre-compression assembly 400 presses the liquid inlet pipe 1010 against the nut 1020, ensuring that the liquid inlet pipe 1010 and the nut 1020 are properly assembled. Then, the status recognition assembly 500 identifies whether the assembly status of the pre-compression liquid inlet assembly 1000 is normal, and causes the welding assembly 600 to weld only the properly assembled liquid inlet assemblies 1000. Therefore, liquid inlet assemblies 1000 with abnormal assembly states, such as the nut 1020 falling off, and / or the welding ring 1011 of the liquid inlet pipe 1010 not contacting the nut 1020, are not welded, greatly improving the welding qualification rate of the liquid inlet assembly 1000.

[0115] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0116] It will be readily apparent to those skilled in the art that any combination of the above embodiments is feasible. Therefore, any combination of the above embodiments is an implementation scheme of this utility model. However, due to space limitations, this specification will not describe them in detail here.

[0117] Numerous specific details are set forth in the specification provided herein. However, it will be understood that embodiments of the present invention may be practiced without these specific details. In some instances, well-known methods, structures, and techniques have not been shown in detail so as not to obscure the understanding of this specification.

[0118] Similarly, it should be understood that, in order to simplify the present invention and aid in understanding one or more of the various aspects of the invention, in the description of exemplary embodiments of the present invention above, various features of the present invention are sometimes grouped together in a single embodiment, figure, or description thereof.

[0119] Furthermore, those skilled in the art will understand that although some embodiments described herein include certain features but not others included in other embodiments, combinations of features from different embodiments are intended to be within the scope of this invention and form different embodiments. For example, in the claims, any of the claimed embodiments can be used in any combination.

Claims

1. A welding device for a liquid inlet assembly, characterized in that, The liquid inlet assembly includes a nut and a liquid inlet tube inserted into the nut; the device includes: Workbench; A workpiece rotating assembly is rotatably connected to the worktable; At least one limiting component, wherein at least one limiting component is evenly distributed on the workpiece rotating component to limit the liquid inlet component, and the workpiece rotating component drives the limiting component to rotate when it is working; A pre-compression assembly includes a pre-compression displacement unit and a pre-compression clamp for clamping the inlet pipe. The pre-compression displacement unit is disposed on the worktable, and the pre-compression clamp is pulsatorically connected to the pre-compression displacement unit. When the pre-compression displacement unit is working, it drives the inlet pipe held by the pre-compression clamp to perform a compression movement toward the nut. A status recognition component, the status recognition component being disposed toward the limiting component, is used to identify a properly assembled liquid inlet component from at least one of the liquid inlet components placed by the limiting component; A welding assembly is located on the worktable and has a welding area, wherein when the welding assembly is in operation, it welds a properly assembled liquid inlet assembly that has reached the welding area.

2. The welding equipment for the liquid inlet assembly according to claim 1, characterized in that, The limiting component includes: A limiting support component is connected to the workpiece rotation assembly via a transmission connection. A limiting clamp is disposed on the limiting support member and is used to clamp or release the liquid inlet pipe; A limiting base, wherein the limiting base has a limiting cavity; The first limiting member is located on the bottom wall of the limiting cavity and is engaged with the nut for limiting. The second limiting member has a limiting groove, which forms a limiting fit with the middle area of ​​the liquid inlet pipe along the radial direction of the liquid inlet pipe.

3. The welding equipment for the liquid inlet assembly according to claim 2, characterized in that, The limiting base has an identification channel that extends outward from the inside of the limiting base, so that the weld ring and nut of the liquid inlet pipe located in the limiting cavity are exposed radially outward in the identification channel along the liquid inlet pipe; wherein, When the limiting base rotates, the recognition channel and the status recognition component are aligned and engaged.

4. The welding equipment for the liquid inlet assembly according to claim 2 or 3, characterized in that, At least one of the following components is made of ceramic material: the limiting base, the first limiting member, and the second limiting member.

5. The welding equipment for the liquid inlet assembly according to claim 2 or 3, characterized in that, The pre-compression displacement unit includes: A pre-compression base is provided on the worktable; A pre-compression telescopic device, wherein the pre-compression telescopic device is connected to the pre-compression base; A pre-compression lifting device, wherein the output shaft of the pre-compression lifting device is drivenly connected to the output shaft of the pre-compression telescopic device, and the output shaft of the pre-compression lifting device is drivenly connected to the pre-compression clamp; When the pre-compression telescopic device is working, it drives the pre-compression clamp to make a linear movement closer to or away from the limiting base. When the pre-compression lifting device is working, it drives the pre-compression clamp to make a lifting movement.

6. The welding equipment for the liquid inlet assembly according to claim 5, characterized in that, The status recognition component is installed on the end face of the pre-compression base near the limiting base.

7. The welding equipment for the liquid inlet assembly according to claim 5, characterized in that, The number of limiting clamps on each limiting support is adapted to the number of pre-compression clamps, wherein the horizontal distance between two adjacent limiting clamps is equal to the horizontal distance between two adjacent pre-compression clamps.

8. The welding equipment for the liquid inlet assembly according to claim 5, characterized in that, The limiting support includes a first support portion and a second support portion connected to the first support portion. The length of the first support portion extends radially along the workpiece rotation assembly. The second support portion is located radially outside the workpiece rotation assembly. The limiting clamp and the limiting base are disposed on the second support portion. At least two of the limiting components are distributed at equal angles around the central axis of the workpiece rotation component, and the limiting fixture, the limiting base, the second limiting member, and the second support are symmetrically distributed about the central axis of the first support along the length direction.

9. The welding equipment for the liquid inlet assembly according to claim 1, characterized in that, The workpiece rotation assembly includes: A drive motor, which is connected to the worktable; A divider, wherein the divider is connected to the drive motor, and the drive motor drives the divider to rotate when it is working; A turntable is coaxially connected to the divider. The limiting components are installed on the radially outer side of the turntable. When there are at least two limiting components, the angle formed by two adjacent limiting components and the central axis of the turntable is an integer multiple of the division angle of the divider.

10. The welding equipment for the liquid inlet assembly according to claim 1, characterized in that, The liquid inlet assembly welding equipment further includes a tube removal assembly, which includes a tube holder and a robotic arm. The tube holder is kinetically connected to the robotic arm. When the liquid inlet assembly, located in the limiting assembly, rotates, it first passes through the welding assembly and then through the robotic arm. When the robotic arm moves, it drives the tube holder to move closer to or away from the limiting assembly. When the tube holder moves, it releases or clamps the liquid inlet tube to move the liquid inlet tube outside the limiting assembly; and / or, The liquid inlet component welding equipment also includes a material transfer clamping component. The material transfer clamping component is disposed on the worktable and is located in the limiting component. When the liquid inlet component rotates, it first passes through the welding component and then through the material transfer clamping component. When the material transfer clamping component is activated, it clamps the nut located in the limiting component and drives the nut to move outside the limiting component.

11. The welding equipment for the liquid inlet assembly according to claim 10, characterized in that, The material transfer clamping assembly includes: A material transfer rotary device, wherein the material transfer rotary device is disposed on the worktable; The material transfer telescopic device is connected to the material transfer rotary device in a transmission manner. When the material transfer rotary device is working, it drives the material transfer telescopic device to perform reciprocating rotational motion. A material transfer lifter is connected to the material transfer telescopic device. When the material transfer telescopic device is working, it drives the material transfer lifter to move horizontally closer to or away from the limiting component. A material transfer clamp that clamps or releases the nut during operation.

12. The welding equipment for the liquid inlet assembly according to claim 1, characterized in that, The liquid inlet assembly further includes a cooling assembly, which is disposed on the worktable and located in the limiting assembly. When the liquid inlet assembly rotates, it first passes through the welding assembly and then through the cooling assembly, so as to cool down the welded liquid inlet assembly through the cooling assembly.

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