A full-automatic argon arc welding device for chain manufacturing

Abstract

The present application relates to welding device technical field, specifically, it relates to a kind of full-automatic argon arc welding device for chain manufacturing.The present application relates to welding device technical field, specifically, it relates to a kind of full-automatic argon arc welding device for chain manufacturing, including operation platform, setting in the execution mechanism of operation platform top and the welding torch of setting in the execution mechanism end, the top surface of operation platform is opened with through slot, the inside of through slot is provided with guide rail, the top surface of operation platform is provided with the base corresponding with the position of guide rail, the outer wall of base is provided with port fine adjustment clamping mechanism;Port fine adjustment clamping mechanism includes the first clamping component of setting in the outer wall of base and the second clamping component of setting on the first clamping component, the top of operation platform is also provided with the support mechanism located in the two sides of base.The device is through two-stage clamping mode, effectively solve the problem that the chain ring port edge miss is difficult to accurate correction in prior art, avoid the defects such as molten pool unable to bridge, weld forming defect caused by edge miss.

Description

Technical Field

[0001] This invention relates to the field of welding equipment technology, and more specifically, to a fully automated argon arc welding device for chain manufacturing. Background Technology

[0002] In the field of chain welding equipment manufacturing, when dealing with special chains made of stainless steel, high-strength alloy steel, and other materials requiring high corrosion resistance and mechanical strength, argon arc welding (argon arc welding) has become an irreplaceable welding process due to its stable arc, lack of spatter, and dense and aesthetically pleasing weld formation. However, the molten pool in argon arc welding is relatively shallow, relying mainly on the surface tension of the liquid metal for spreading. This makes it extremely demanding on the microscopic alignment accuracy (such as misalignment) of the two ends of the chain links before welding. Even a slight misalignment can prevent the molten pool from bridging, leading to defects such as undercut, lack of fusion, or poor weld formation.

[0003] There are many existing technologies for chain welding devices. For example, Chinese invention patent CN119457334A discloses a semi-automatic argon arc welding machine for titanium alloy chains, including: a moving pair, a chain adjustment device, a welding device, and a titanium alloy chain. The bottom end of the moving pair is fixedly installed on the ground, and the top end of the moving pair has two output ends. Two chain adjustment devices for clamping the titanium alloy chain and driving the titanium alloy chain to rotate are symmetrically fixedly installed on the two output ends of the ball screw pair. A welding device for welding the chain link joints in the titanium alloy chain is set between the two chain adjustment devices. This invention can effectively achieve the welding of titanium alloy chains, make up for the lack of equipment for welding titanium alloy chains in the existing technology, and can remove the restrictions on the large-scale application and promotion of titanium alloy chains in certain heavy equipment fields.

[0004] This argon arc welding machine uses a fixed clamp to roughly limit the chain links, lacking a fine-tuning mechanism that directly acts on the chain link joint ends. This makes it difficult to effectively correct minor misalignments at the joint ends before welding. These minor misalignments at the chain link joint ends often originate from: wear of the stamping die during manufacturing; springback deformation during the stretching process (such as minor angular deviations at the ends of stainless steel chain links due to elastic recovery after stamping); or posture shifts of the chain links during the feeding of the chain links by the stepping mechanism. These factors can all lead to inherent differences in the dimensions, angles, or flatness of the two ends of the chain link (e.g., ...). Figure 1 The misalignment of the two ends of the middle chain ring joint in the X-axis direction or the vertical misalignment in the Y-axis direction. When these misalignments are not accurately corrected, the rotation trajectory of the welding torch cannot fully match the ends during the argon arc welding process, making it difficult for the molten pool metal to fill the gap evenly, ultimately affecting the welding quality. Summary of the Invention

[0005] This invention provides a fully automatic argon arc welding device for chain manufacturing, which solves the problem mentioned in the background art by means of a port fine-tuning clamping mechanism, namely, the problem that the rotation trajectory of the welding torch cannot be completely aligned with the port due to the misalignment of the two ports of the chain link joint.

[0006] To achieve the above objectives, a fully automatic argon arc welding device for chain manufacturing includes an operating table, an actuator mounted on the top of the operating table, and a welding torch mounted at the end of the actuator. A through groove is formed on the top surface of the operating table, and a guide rail is installed inside the through groove. A base corresponding to the position of the guide rail is mounted on the top surface of the operating table. A port fine-tuning clamping mechanism is provided on the outer wall of the base. The port fine-tuning clamping mechanism includes a first clamping component mounted on the outer wall of the base and a second clamping component mounted on the first clamping component. During welding, the first clamping component first clamps the outer wall of the chain link to be welded to correct its posture and aligns the two ports of the chain link from the X-axis direction. The second clamping component then clamps the center line of the chain link port and aligns the two ports of the chain link from the Y-axis direction.

[0007] In the above technical solution, the two-stage clamping method effectively solves the problem of the difficulty in accurately correcting the misalignment of the chain link end in the existing technology, and avoids defects such as the inability to bridge the molten pool and poor weld formation caused by the misalignment.

[0008] Based on the above, a flat groove is provided on the top surface of the base, and an inclined groove is provided on the side wall of the base. A limiting plate is fixedly installed on the top surface of the base, a fixing plate is fixedly installed on one side of the outer wall of the inclined groove, and an inclined plate is fixedly installed on the other side of the outer wall of the inclined groove. The fixing plate and the inclined plate cooperate to apply a guiding effect to the chain link to be welded and adjust it to an inclined state so that the first clamping assembly can clamp it in a vertical state.

[0009] The first clamping assembly includes an arc-shaped groove on the top surface of the base, a drive plate slidably mounted on the outer wall of the base, a pressure plate elastically mounted on the outer wall of the drive plate, a T-shaped rod fixedly mounted on the side of the pressure plate near the drive plate, a first square groove on the outer wall of the drive plate for the T-shaped rod to slide, and a first elastic member sleeved on the wall of the T-shaped rod. One end of the first elastic member is fixedly connected to the outer wall of the pressure plate, and the other end of the first elastic member is fixedly connected to the outer wall of the drive plate. During the welding process, the first clamping assembly first clamps the outer wall of the chain link to be welded, uses the clamping force to correct the initial posture of the chain link, and aligns the two ends of the chain link to be welded from the X-axis direction.

[0010] The second clamping assembly includes a second square groove formed on the outer wall of the pressure plate, a clamping block slidably installed inside the second square groove, a limiting ridge formed on the clamping block near one end of the chain link, a connecting plate fixedly installed on one end of the clamping block near the drive plate, and a second elastic member sleeved on the bar wall of the clamping block. One end of the second elastic member is fixedly connected to the outer wall of the pressure plate, and the other end of the second elastic member is fixedly connected to the outer wall of the connecting plate. The second clamping assembly clamps the center line of the chain link port through the limiting ridge, aligning the two ports in the Y-axis direction and correcting the misalignment along the Y-axis.

[0011] Four of each of the first and second clamping assemblies are provided, and they are symmetrically arranged in pairs on both sides of the chain link to be welded. The port fine-tuning clamping mechanism also includes a control box fixedly installed on the outer wall of the base, a slide groove opened on the top surface of the control box for the drive plate to slide, a first bidirectional lead screw rotatably installed inside the control box, a guide rod snapped into the control box, and a control plate fixedly installed on the bottom surface of the drive plate in the two first clamping assemblies on the same side. The rod wall of the first bidirectional lead screw is rotatably connected to the inner wall of the base, the outer wall of the control plate is threadedly connected to the rod wall of the first bidirectional lead screw, and slidably connected to the rod wall of the guide rod. Thus, when the first bidirectional lead screw rotates, it can drive the control plates on both sides to move closer or further away synchronously.

[0012] The port fine-tuning clamping mechanism also includes a drive motor fixedly installed on the outer wall of the control box, and the output shaft of the drive motor is fixedly connected to the axial end of the first bidirectional lead screw.

[0013] The top of the operating table is also equipped with support mechanisms located on both sides of the base. During the welding process, the support mechanisms clamp and fix the chain links to be welded from the Z-axis direction to support the chain links to be welded and prevent their joint ends from being pulled and deformed by other chain links on the chain.

[0014] The support mechanism includes a mounting box fixedly installed on the top surface of the operating table, an adjusting groove opened inside the mounting box, a sliding base slidably installed inside the second bidirectional lead screw, a second electric push rod fixedly installed on the top surface of the sliding base, a sleeve sleeved on the movable end of the second electric push rod, a third elastic element disposed inside the sleeve, and a drive assembly disposed on the mounting box for driving the sliding base to slide. One end of the third elastic element is fixedly connected to the movable end of the second electric push rod, and the other end of the third elastic element is fixedly connected to the inner wall of the sleeve. With the extension amount of the movable ends of the two second electric push rods remaining constant, by controlling the two sliding bases to move closer to each other, the clamping force applied by the two sleeves to the chain links can be increased.

[0015] The drive assembly includes a second bidirectional lead screw rotatably mounted inside the mounting box and a throttle handle rotatably mounted on the outer wall of the mounting box, with one end of the second bidirectional lead screw fixedly connected to the end of the throttle handle.

[0016] A first electric push rod, tilted and fixedly mounted on the bottom of the control panel, has a slider fixedly connected to its movable end. A U-shaped push plate is mounted on one side of the slider to move the chain. The chain movement is powered by the interaction between the first electric push rod, the slider, and the U-shaped push plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: In this fully automated argon arc welding device for chain manufacturing, the first clamping component flexibly clamps the outer wall of the chain link for macroscopic posture correction and X-axis alignment, while the second clamping component holds the center line of the chain link port for Y-axis fine adjustment. Simultaneously, the first and second elastic elements are used to slowly release pressure after welding to smoothly dissipate the metal springback stress. This avoids the accumulation of errors and mechanical interference caused by simultaneous multi-directional adjustments, significantly reducing the risk of chain link pressure damage, effectively eliminating weld deformation caused by misalignment at the two ends of the chain link and sudden unloading, and ensuring the ultimate precision of port alignment and weld formation quality.

[0018] 2. In this fully automatic argon arc welding device for chain manufacturing, the support mechanism applies elastically buffered clamping and fixing to the chain links from the Z-axis direction, and works in conjunction with the adjustable sliding base to dynamically adapt to the tensile force under different working conditions. This effectively counteracts the tension interference generated by the chain's own weight and adjacent chain links, prevents the joint port from tearing or shifting during the welding heat-affected period, and ensures that the molten pool completes bridging in a stable state. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a chain link in the prior art; Figure 2 This is a schematic diagram of the overall structure of the present invention; Figure 3 This is a schematic diagram of the installation of the guide rod in this invention; Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle; Figure 5 This is a top view of the base in this invention; Figure 6 This is a schematic diagram of the port fine-tuning clamping mechanism in this invention; Figure 7 This is a schematic diagram of the installation of the control board in this invention; Figure 8 This is a schematic diagram of the installation of the support mechanism in this invention; Figure 9 This is a schematic diagram of the support mechanism in this invention; Figure 10 For the present invention Figure 9 Enlarged view of point B in the middle; Figure 11 This is a schematic diagram of the installation of the second bidirectional lead screw in this invention; Figure 12 This is a schematic diagram of the installation of the U-shaped push plate in this invention; Figure 13 This is a schematic diagram of the state of the present invention when the port fine-tuning clamping mechanism is not activated; Figure 14 This is a schematic diagram of the first state of the present invention when the clamping mechanism is finely adjusted at the start port; Figure 15 This is a schematic diagram of the second state of the present invention when the clamping mechanism is finely adjusted at the start port; Figure 16 This is a schematic diagram of the state of the support mechanism when the present invention is activated.

[0020] The meanings of the labels in the diagram are as follows: 100. Operating table; 101. Through slot; 102. Guide rail; 103. Actuator; 104. Welding torch; 105. First electric push rod; 106. Slider; 107. U-shaped push plate; 110. Base; 111. Flat groove; 112. Limiting plate; 113. Inclined groove; 114. Fixing plate; 115. Inclined plate; 200. Port fine-tuning clamping mechanism; 201. Arc-shaped groove; 202. Pressure plate; 203. T-shaped rod; 204. First elastic element; 205. First square groove; 206. Drive plate; 207. Clamping block; 208. Connecting plate; 209. Second elastic element; 210. Second square groove; 211. Control box; 212. Slide groove; 213. First bidirectional lead screw; 214. Drive motor; 215. Guide rod; 216. Control plate; 300. Support mechanism; 301. Sliding base; 302. Second electric push rod; 303. Sleeve; 304. Third elastic element; 305. Mounting box; 306. Adjustment groove; 307. Second double-acting lead screw; 308. Throttle. Detailed Implementation

[0021] The technical solutions of this invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0022] Therefore, to address the aforementioned problem where the rotation trajectory of the welding torch 104 cannot fully align with the ports due to misalignment at the two ends of the chain link joint, this invention provides a fully automated argon arc welding device for chain manufacturing. (Refer to...) Figures 1-16As shown, the system includes an operating table 100, an actuator 103 located on top of the operating table 100, and a welding torch 104 located at the end of the actuator 103. The actuator 103 drives the welding torch 104 to move along a preset circular welding trajectory. During welding, the high-temperature arc generated by the welding torch 104 melts the metal at the joint of the chain links to be welded. Simultaneously, a wire feeding mechanism within the welding torch 104 delivers welding wire to the molten pool. After melting, the welding wire fuses with the base material to form a weld, thus achieving the welding connection at the ends of the chain links. During this process, argon gas is continuously ejected through the nozzle of the welding torch 104, forming a protective gas atmosphere around the arc. This atmosphere isolates the molten pool from harmful gases such as oxygen and nitrogen in the air, preventing defects such as porosity and oxidation in the weld and ensuring the stability of the welding quality. As the actuator 103 drives the welding torch 104 to move uniformly along the joint, the metal at both ends of the chain links partially melts and fuses together under the heat of the arc, forming a strong weld after cooling. It should be noted that the actuator 103 and the welding torch 104 are common welding equipment in the prior art, and will not be described in detail here.

[0023] refer to Figure 1 As shown, the top surface of the operating table 100 has a through groove 101, and a guide rail 102 is fixedly installed inside the through groove 101. A base 110 corresponding to the position of the guide rail 102 is fixedly installed on the top surface of the operating table 100. A port fine-tuning clamping mechanism 200 is provided on the outer wall of the base 110. The port fine-tuning clamping mechanism 200 includes a first clamping component disposed on the outer wall of the base 110 and a second clamping component disposed on the first clamping component. During welding, the first clamping component first clamps the outer wall of the chain link to be welded, using clamping force to correct the initial posture of the chain link (adjusting the tilted or horizontal state to near vertical), and aligns the two ports from the X-axis direction to eliminate X-axis misalignment. The second clamping component clamps the centerline of the chain link port through a limiting ridge, aligning the two ports from the Y-axis direction to correct Y-axis misalignment, ensuring that the ports meet the microscopic alignment requirements of argon arc welding in both the X and Y directions.

[0024] Furthermore, by breaking down the adjustment tasks of attitude correction and port alignment into sequential steps, the accumulation of errors during the adjustment process is effectively reduced. Each step involves smaller and more precise adjustments, avoiding the potential for neglecting one aspect when adjusting simultaneously. At the same time, the force required for step-by-step clamping is smaller, especially for thin-walled or easily deformable chain links, significantly reducing the risk of indentation or deformation caused by clamping force.

[0025] Reference Figure 5The base 110 has a flat groove 111 on its top surface. The flat groove 111 is used to place the chain link to be welded. The side wall of the base 110 has an inclined groove 113. A limiting plate 112 is fixedly installed on the top surface of the base 110. A fixing plate 114 is fixedly installed on one side of the outer wall of the inclined groove 113, and an inclined plate 115 is fixedly installed on the other side of the outer wall of the inclined groove 113. The fixing plate 114 and the inclined plate 115 cooperate to adjust the chain link from an inclined or horizontal state to a near-vertical state when passing through the inclined groove 113.

[0026] Thus, when the chain link to be welded enters the base 110, the fixing plate 114 and the inclined plate 115 on the inclined groove 113 apply a guiding effect to the chain link to be welded, adjusting it from the initial inclined or horizontal state to an inclined angle suitable for clamping by the first clamping component, so that the first clamping component can more easily clamp the chain link into a vertical state, reducing the resistance during the clamping process and improving the efficiency and stability of attitude correction.

[0027] Reference Figure 12 A first electric push rod 105, inclined and fixedly installed, is mounted on the bottom of the operating table 100. A slider 106 is fixedly connected to the movable end of the first electric push rod 105. A U-shaped push plate 107 for pulling the chain is provided on one side of the slider 106. The slider 106 and the U-shaped push plate 107 are connected by a torsion spring to achieve unidirectional rotation.

[0028] Therefore, when the movable end of the first electric push rod 105 retracts, it drives the slider 106 to move diagonally downwards. The U-shaped push plate 107 then pulls one of the chain links along the guide rail 102 diagonally downwards, ensuring the next chain link to be welded accurately reaches the welding position on the base 110. Subsequently, the movable end of the first electric push rod 105 extends, driving the slider 106 to move diagonally upwards. Under the action of the torsion spring, the U-shaped push plate 107 rotates upwards along the surface of the chain and slides back to its initial position, its U-shaped groove re-engaging with the surface of another chain link. It should be noted that the slider 106 and the U-shaped push plate 107 can also be connected in other ways; the connection method between them is not limited here.

[0029] Reference Figure 6 The first clamping assembly includes an arc-shaped groove 201 formed on the top surface of the base 110, a drive plate 206 slidably mounted on the outer wall of the base 110, a pressure plate 202 elastically mounted on the outer wall of the drive plate 206, a T-shaped rod 203 fixedly mounted on the side of the pressure plate 202 near the drive plate 206, and a first square groove 205 formed on the outer wall of the drive plate 206 for the T-shaped rod 203 to slide.

[0030] The first clamping assembly further includes a first elastic element 204 sleeved on the wall of the T-shaped rod 203, with one end of the first elastic element 204 fixedly connected to the outer wall of the pressure plate 202 and the other end of the first elastic element 204 fixedly connected to the outer wall of the drive plate 206. The first elastic element 204 can be a compression spring or a return spring commonly used in the prior art, and is preferably a compression spring here.

[0031] The first elastic element 204, on the one hand, converts the movement energy of the drive plate 206 into a flexible clamping force of the pressure plate 202 on the outer wall of the chain link, thereby initially aligning the two ends of the chain link in the X-axis direction while correcting the initial posture of the chain link. On the other hand, due to the hard extrusion pressure applied to the metal end at room temperature, a certain amount of elastic rebound stress will inevitably accumulate inside the metal. When the welding is completed and the two drive plates 206 move away from each other, the first elastic element 204 allows the pressure of the pressure plate 202 on the surface of the chain link to gradually decrease, allowing the chain link to slowly adapt to stress changes during the pressure release process, avoiding sudden deformation, thereby maintaining the dimensional accuracy of the chain link and the integrity of the weld, and effectively mitigating the negative impact of the elastic rebound stress accumulated inside the metal.

[0032] Reference Figure 6 The second clamping assembly includes a second square groove 210 formed on the outer wall of the pressure plate 202, a clamping block 207 slidably installed inside the second square groove 210, a limiting ridge formed on the clamping block 207 near one end of the chain link, and a connecting plate 208 fixedly installed on the clamping block 207 near one end of the drive plate 206. The limiting ridge is inwardly concave in the shape of a mountain ridge. Through its two concave inclined sides, it can accommodate misalignment within a certain range, forcibly correcting the center lines of the two ends of the chain link to the same height, thereby adjusting the misalignment of the chain link ends in the Y-axis direction.

[0033] The second clamping assembly further includes a second elastic element 209 sleeved on the rod wall of the clamping block 207, with one end of the second elastic element 209 fixedly connected to the outer wall of the pressure plate 202 and the other end of the second elastic element 209 fixedly connected to the outer wall of the connecting plate 208. The second elastic element 209 can be a compression spring or a return spring commonly used in the prior art, and is preferably a compression spring here.

[0034] It should be noted that there are four of each of the first and second clamping components, arranged symmetrically in pairs on both sides of the chain link to be welded. (Refer to...) Figures 13-15 As shown, the two sets of first clamping components and second clamping components can clamp the two sides of the two ports of the chain link respectively.

[0035] refer to Figure 3 and Figure 6As shown, the port fine-tuning clamping mechanism 200 also includes a control box 211 fixedly installed on the outer wall of the base 110, a slide groove 212 formed on the top surface of the control box 211 for the drive plate 206 to slide, a first bidirectional lead screw 213 rotatably installed inside the control box 211, a guide rod 215 snapped into the control box 211, and a control plate 216 fixedly installed on the bottom surface of the drive plate 206 in the two first clamping assemblies on the same side. The rod wall of the first bidirectional lead screw 213 is rotatably connected to the inner wall of the base 110, the outer wall of the control plate 216 is threadedly connected to the rod wall of the first bidirectional lead screw 213, and slidably connected to the rod wall of the guide rod 215. Specifically, the thread directions of the two ends of the first bidirectional lead screw 213 are symmetrically arranged.

[0036] Therefore, when the first bidirectional lead screw 213 rotates, it can drive the control plates 216 on both sides to move closer or further away synchronously, thereby synchronously driving the first or second clamping components on both sides to move. This effectively avoids misalignment of the chain link ports caused by asynchronous movements, improving the accuracy and stability of the chain link port fine-tuning. The guide rod 215 provides a limit for the movement of the control plates 216 on both sides, further improving the stability of the device during use.

[0037] Reference Figure 6 The port fine-tuning clamping mechanism 200 also includes a drive motor 214 fixedly mounted on the outer wall of the control box 211, and the output shaft of the drive motor 214 is fixedly connected to the axial end of the first bidirectional lead screw 213. The drive motor 214 can be a stepper motor or a servo motor commonly used in the prior art; a stepper motor is preferred here, and its model can be determined according to actual usage requirements, without limitation here. By controlling the rotation of the output shaft of the drive motor 214, the first bidirectional lead screw 213 can be driven to rotate, providing power for adjusting the distance between the two control plates 216.

[0038] Example 2, refer to Figures 1-16 This is the second embodiment of the present invention, which differs from the first embodiment in that: the top of the operating table 100 is further provided with support mechanisms 300 located on both sides of the base 110. During the welding process, the support mechanisms 300 clamp and fix the chain links to be welded from the Z-axis direction to counteract the pulling force of other chain links on the chain and prevent the joint port from deforming due to external forces.

[0039] The support mechanism 300 includes a mounting box 305 fixedly mounted on the top surface of the operating table 100, an adjusting groove 306 formed inside the mounting box 305, a sliding base 301 slidably mounted inside the second bidirectional lead screw 307, a second electric push rod 302 fixedly mounted on the top surface of the sliding base 301, a sleeve 303 sleeved on the movable end of the second electric push rod 302, a third elastic element 304 disposed inside the sleeve 303, and a driving assembly disposed on the mounting box 305 for driving the sliding base 301 to slide. One end of the third elastic element 304 is fixedly connected to the movable end of the second electric push rod 302, and the other end of the third elastic element 304 is fixedly connected to the inner wall of the sleeve 303. The third elastic element 304 can be a compression spring or a return spring commonly used in the prior art, and is preferably a compression spring here.

[0040] Furthermore, the thread directions on the two ends of the second bidirectional lead screw 307 are symmetrically arranged. When the second bidirectional lead screw 307 rotates, it can drive the sliding bases 301 on both sides to move closer or further away synchronously, thereby driving the support mechanisms 300 on both sides to move synchronously.

[0041] Reference Figures 13-16 As shown, during the welding process, after the port fine-tuning clamping mechanism 200 completes the alignment of the chain links in the X and Y axes, the support mechanism 300 controls the extension of the movable ends of the two second electric push rods 302, driving the two sleeves 303 to apply clamping force to the chain links. The third elastic element 304 makes the clamping force flexible, avoiding hard compression that could damage the chain link surface, while ensuring the stability and uniformity of the clamping. This effectively solves the problem of joint port deformation caused by the weight of the chain links in the suspended state or the tension of adjacent chain links during welding, maintaining the shape stability of the joint port, providing a guarantee for the smooth bridging of the molten pool and the good formation of the weld, and further improving the reliability and consistency of the welding quality.

[0042] In other words, with the extension of the movable ends of the two second electric push rods 302 remaining unchanged, by controlling the two sliding bases 301 to move closer to each other, the clamping force applied to the chain link by the two sleeves 303 can be increased, thereby improving the stability of the chain link welding process. By controlling the two sliding bases 301 to move further apart from each other, the clamping force applied to the chain link by the two sleeves 303 can be reduced, thus protecting the chain link.

[0043] Reference Figure 9The drive assembly includes a second bidirectional lead screw 307 rotatably mounted inside the mounting box 305 and a throttle 308 rotatably mounted on the outer wall of the mounting box 305, with one end of the second bidirectional lead screw 307 fixedly connected to the end of the throttle 308. The manual setting of the throttle 308 provides a convenient adjustment method without relying on electric equipment, making it particularly suitable for small-batch production or scenarios requiring frequent changes of different sized chain links. Operators can intuitively adjust the sliding base 301 through a rotating operation, reducing the complexity of equipment operation.

[0044] Furthermore, it should be noted that the second bidirectional lead screw 307 and the throttle 308 are only one way to achieve the adjustment of the distance between the two sliding bases 301, and this device includes, but is not limited to, this method. For example, another embodiment of this device involves setting a weight sensor on the top surface of the base 110 and a logic controller inside the mounting box 305, with the second electric push rod 302 electrically connected to the logic controller. By measuring and detecting the weight of the chain through the weight sensor, the tension of the chain on both sides of the chain link to be welded can be detected. The greater the tension on both sides of the chain link to be welded, the greater the extension of the two second electric push rods 302 controlled by the logic controller, thereby driving the two sliding bases 301 closer together, increasing the clamping force applied to the chain link by the two sleeves 303, and improving the stability of the chain link during the welding process.

[0045] The remaining structure is the same as that in Example 1.

[0046] Working principle: During the conveying stage, the chain is fed in a unidirectional cycle through the cooperation of the first electric push rod 105, the slider 106, and the U-shaped push plate 107, so that the chain link to be welded can accurately enter the base 110. When the chain link enters the base 110, it first passes through the guide groove 113 formed by the fixed plate 114 and the inclined plate 115, and is initially adjusted from a horizontal or inclined state to a specific angle suitable for clamping.

[0047] Subsequently, the drive motor 214 drives the first bidirectional lead screw 213 to rotate. Through the cooperation of the control plate 216 and the guide rod 215, the drive plates 206 on both sides are driven to move synchronously towards each other. The first clamping assembly utilizes the flexible buffering effect of the first elastic element 204 to clamp the outer wall of the chain link through the pressure plate 202 to complete macroscopic attitude correction. As the drive plate 206 continues to approach, the clamping block 207 of the second clamping assembly uses its limiting ridge to hold the center line of the port, and completes microscopic attitude correction under the action of the second elastic element 209.

[0048] Then the second electric push rod 302 of the support mechanism 300 extends and drives the sleeve 303 to clamp and fix the chain link under the flexible buffer of the third elastic element 304, so as to counteract the pulling force of the adjacent chain link. After the weld cools down, each mechanism retracts in turn to complete one working cycle.

[0049] In addition, this device can also adjust the distance between the two sliding bases 301 by rotating the throttle 308 to drive the second bidirectional lead screw 307 to rotate, thereby dynamically adjusting the clamping force of the sleeve 303 on the chain link and ensuring the stability of the chain link welding process.

[0050] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fully automatic argon arc welding device for chain manufacturing, comprising an operating table (100), an actuator (103) disposed on the top of the operating table (100), and a welding torch (104) disposed at the end of the actuator (103), characterized in that: The top surface of the operating table (100) is provided with a through groove (101), and a guide rail (102) is provided inside the through groove (101). The top surface of the operating table (100) is provided with a base (110) corresponding to the position of the guide rail (102), and the outer wall of the base (110) is provided with a port fine-tuning clamping mechanism (200). The port fine-tuning clamping mechanism (200) includes a first clamping component disposed on the outer wall of the base (110) and a second clamping component disposed on the first clamping component. During the welding process, the first clamping component first clamps the outer wall of the chain link to be welded to correct its posture and aligns the two ports of the chain link from the X-axis direction. The second clamping component then clamps the center line of the chain link port and aligns the two ports of the chain link from the Y-axis direction.

2. The fully automatic argon arc welding device for chain manufacturing according to claim 1, characterized in that: The base (110) has a flat groove (111) on its top surface and an inclined groove (113) on its side wall. A limiting plate (112) is fixedly installed on the top surface of the base (110). A fixing plate (114) is fixedly installed on one side of the outer wall of the inclined groove (113), and an inclined plate (115) is fixedly installed on the other side of the outer wall of the inclined groove (113). The fixing plate (114) and the inclined plate (115) work together to guide the chain link to be welded and adjust it to an inclined state so that the first clamping assembly can clamp it in a vertical state.

3. The fully automatic argon arc welding device for chain manufacturing according to claim 2, characterized in that: The first clamping assembly includes an arc-shaped groove (201) on the top surface of the base (110), a drive plate (206) slidably mounted on the outer wall of the base (110), a pressure plate (202) elastically mounted on the outer wall of the drive plate (206), a T-shaped rod (203) fixedly mounted on the side of the pressure plate (202) near the drive plate (206), a first square groove (205) on the outer wall of the drive plate (206) for sliding the T-shaped rod (203), and a first elastic member (204) sleeved on the wall of the T-shaped rod (203). One end of the first elastic member (204) is fixedly connected to the outer wall of the pressure plate (202), and the other end of the first elastic member (204) is fixedly connected to the outer wall of the drive plate (206).

4. The fully automatic argon arc welding device for chain manufacturing according to claim 3, characterized in that: The second clamping assembly includes a second square groove (210) formed on the outer wall of the pressure plate (202), a clamping block (207) slidably installed inside the second square groove (210), a limiting ridge formed on the clamping block (207) near the chain link, a connecting plate (208) fixedly installed on the clamping block (207) near the drive plate (206), and a second elastic member (209) sleeved on the rod wall of the clamping block (207). One end of the second elastic member (209) is fixedly connected to the outer wall of the pressure plate (202), and the other end of the second elastic member (209) is fixedly connected to the outer wall of the connecting plate (208).

5. The fully automatic argon arc welding device for chain manufacturing according to claim 3, characterized in that: The first clamping component and the second clamping component are each provided in four parts, and each pair is symmetrically arranged on both sides of the chain link to be welded. The port fine-tuning clamping mechanism (200) further includes a control box (211) fixedly installed on the outer wall of the base (110), a slide groove (212) opened on the top surface of the control box (211) for the drive plate (206) to slide, a first bidirectional lead screw (213) rotatably installed inside the control box (211), a guide rod (215) snapped into the control box (211), and a control plate (216) fixedly installed on the bottom surface of the drive plate (206) in the two first clamping assemblies on the same side. The rod wall of the first bidirectional lead screw (213) is rotatably connected to the inner wall of the base (110), the outer wall of the control plate (216) is threadedly connected to the rod wall of the first bidirectional lead screw (213), and slidably connected to the rod wall of the guide rod (215).

6. The fully automated argon arc welding device for chain manufacturing according to claim 5, characterized in that: The port fine-tuning clamping mechanism (200) also includes a drive motor (214) fixedly installed on the outer wall of the control box (211), and the output shaft of the drive motor (214) is fixedly connected to the axial end of the first bidirectional lead screw (213).

7. The fully automatic argon arc welding device for chain manufacturing according to claim 1, characterized in that: The top of the operating table (100) is also provided with support mechanisms (300) located on both sides of the base (110). During the welding process, the support mechanisms (300) clamp and fix the chain link to be welded from the Z-axis direction to support the chain link to be welded and prevent its joint port from being pulled and deformed by other chain links on the chain.

8. The fully automatic argon arc welding device for chain manufacturing according to claim 7, characterized in that: The support mechanism (300) includes a mounting box (305) fixedly installed on the top surface of the operating table (100), an adjustment groove (306) opened inside the mounting box (305), a sliding base (301) slidably installed inside the second bidirectional lead screw (307), a second electric push rod (302) fixedly installed on the top surface of the sliding base (301), a sleeve (303) sleeved on the movable end of the second electric push rod (302), a third elastic element (304) set inside the sleeve (303), and a drive assembly set on the mounting box (305) for driving the sliding base (301) to slide. One end of the third elastic element (304) is fixedly connected to the movable end of the second electric push rod (302), and the other end of the third elastic element (304) is fixedly connected to the inner wall of the sleeve (303).

9. The fully automatic argon arc welding device for chain manufacturing according to claim 8, characterized in that: The drive assembly includes a second bidirectional lead screw (307) rotatably mounted inside the mounting box (305) and a throttle (308) rotatably mounted on the outer wall of the mounting box (305), and one end of the second bidirectional lead screw (307) is fixedly connected to the end of the throttle (308).

10. The fully automated argon arc welding device for chain manufacturing according to claim 1, characterized in that: The bottom of the operating table (100) is fixedly installed with an inclined first electric push rod (105), and the movable end of the first electric push rod (105) is fixedly connected with a slider (106). A U-shaped push plate (107) for pulling the chain is provided on one side of the slider (106).

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