Subway air conditioner frame welding platform

Abstract

This invention provides a welding platform for subway air conditioner frames, belonging to the field of subway air conditioner processing technology. It includes a worktable, multiple clamping components, and multiple lifting components. The worktable is used to hold the air conditioner frame. Multiple clamping components are spaced around the worktable and cooperate to fix the air conditioner frame, each having the freedom to move towards and away from the worktable. Multiple lifting components are mounted on the worktable and correspond one-to-one with the clamping components. Each lifting component has a lifting end for raising the air conditioner frame. Each lifting end is connected to a corresponding clamping component via a connector. The connector has a fixed end connected to the lifting end and a movable end connected to the clamping component, and each movable end has a guide structure between itself and the worktable. The subway air conditioner frame welding platform provided by this invention ensures that when the air conditioner frame is lifted using hoisting equipment, there will be no interference or collision between the air conditioner frame and the clamping components.

Description

Technical Field

[0001] This invention belongs to the field of subway air conditioning processing technology, and more specifically, it relates to a subway air conditioning frame welding platform. Background Technology

[0002] As a core supporting component of the rail vehicle air conditioning system, the subway air conditioning frame (hereinafter referred to as "air conditioning frame") is usually a rectangular frame structure assembled and welded from multiple alloy profiles. Its main function is to install and fix the roof air conditioning unit and participate in organizing the airflow path. Its performance is directly related to the air conditioning efficiency, the sealing of the car body and the overall reliability of the system.

[0003] In existing production processes, air conditioner frames are typically positioned on a dedicated welding platform, where workers assemble and weld them. To ensure the stability of the air conditioner frame during operation, the welding platform is equipped with multiple clamping and fixing mechanisms around its circumference to firmly press the air conditioner frame onto the platform.

[0004] Due to the large size and significant weight of the air conditioner frame, it needs to be removed using hoisting equipment after the welding process is completed. At this time, the clamping and fixing mechanism set around the welding platform is prone to spatial interference with the air conditioner frame, hindering the efficient and safe separation of the air conditioner frame from the welding platform, and there is a certain risk of collision between the air conditioner frame and the clamping and fixing mechanism. Summary of the Invention

[0005] The purpose of this invention is to provide a welding platform for subway air conditioner frames, which aims to ensure the safe hoisting and separation of the air conditioner frames after welding.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is: to provide a welding platform for subway air conditioner frames, comprising:

[0007] A workbench for placing air conditioner frames;

[0008] Multiple clamping members are spaced apart around the worktable to cooperate with each other to fix the air conditioner frame, and each member has the freedom to move towards and away from the worktable; and

[0009] Multiple lifting components are all mounted on the worktable and correspond one-to-one with the multiple clamping components; each lifting component has a lifting end for lifting the air conditioner frame;

[0010] Each of the lifting ends is connected to the corresponding clamping member via a connector. The connector has a fixed end connected to the lifting end and a movable end connected to the clamping member, and each movable end has a guide structure between itself and the worktable.

[0011] When the lifting end raises the air conditioner frame, the fixed end rises synchronously, and the moving end, under the action of the guide structure, drives the clamping member to move away from the worktable to avoid the moving trajectory of the air conditioner frame.

[0012] In one possible implementation, the clamping element includes:

[0013] A hinge support is laterally slidably disposed on the outside of the worktable and has the freedom to move toward and away from the worktable; the moving end is connected to the hinge support.

[0014] A clamping arm is hinged to the hinge support, and its two ends are a swing end and a connecting end, respectively; the clamping arm has a clamping posture with the swing end positioned above the air conditioner frame, and a clearance posture with the swing end avoiding the space above the air conditioner frame; the connecting end is driven by a driving component to switch the clamping arm between the clamping posture and the clearance posture; and

[0015] A clamping head is slidably disposed at the swing end of the clamping arm; the clamping head has a clamping position and an avoidance position, and has an elastic degree of freedom to move from the clamping position to the avoidance position;

[0016] The clamping head is connected to the clamping arm via a linkage component, so that when the clamping arm switches to the avoidance posture, the linkage component drives the clamping head to move synchronously to the avoidance position.

[0017] When the clamping arm is in the clamping posture and the clamping head is in the clamping position, the clamping head can abut against the top surface of the air conditioner frame to restrict the movement of the air conditioner frame relative to the worktable;

[0018] When the clamping arm is in the avoidance posture and the clamping head is in the avoidance position, the clamping head can avoid the moving trajectory of the air conditioner frame.

[0019] In one possible implementation, a hinge shaft for rotating the clamping arm is fixedly disposed on the hinge support, and the linkage assembly includes:

[0020] The first gear is fixedly mounted on the hinge shaft;

[0021] The second gear is rotatably mounted on the clamping arm and meshes with the first gear; and

[0022] A rack is slidably disposed on the clamping arm along the length of the clamping arm and meshes with the second gear; the end of the rack facing the clamping head has a pushing part;

[0023] When the clamping arm switches from the avoidance posture to the clamping posture, the first gear and the second gear transmit kinetic energy to the rack, so that the rack pushes the clamping head from the avoidance position to the clamping position through the pushing part, and fixes it in the clamping position.

[0024] In one possible implementation, the pushing part has a pushing slope at one end facing the clamping head, and the clamping head has a mating slope, with the pushing slope abutting against the mating slope;

[0025] When the clamping arm switches from the avoidance posture to the clamping posture, the pushing inclined surface pushes the clamping head from the avoidance position to the clamping position through the mating inclined surface.

[0026] In one possible implementation, the gripping head includes:

[0027] The sliding part is slidably disposed on the clamping arm;

[0028] The pressing part is ball-hinged onto the sliding part.

[0029] In one possible implementation, a spring is provided between the clamping head and the clamping arm;

[0030] When the clamping arm switches from the clamping posture to the avoidance posture, the spring pushes the clamping head to move from the clamping position to the avoidance position.

[0031] In one possible implementation, the driving component is a first hydraulic cylinder, the cylinder body of which is hinged to the worktable, and the piston rod of which is hinged to the connecting end.

[0032] In one possible implementation, the guiding structure includes:

[0033] Guide grooves are formed on the worktable; and

[0034] The docking part is fixedly disposed on the moving end and slidably embedded in the guide groove, so that the moving end has the freedom to move along the extension direction of the guide groove;

[0035] The guide groove extends from bottom to top away from the worktable, so that when the fixed end moves upward, the moving end moves synchronously along the guide groove, and drives the clamping member to move away from the worktable.

[0036] In one possible implementation, the connector includes:

[0037] A fixing part is fixedly disposed on the lifting end; the fixing part forms the fixing end.

[0038] The connecting part has one end slidably connected to the fixing part laterally and the other end slidably connected to the clamping member vertically; the end of the connecting part away from the fixing part forms the moving end.

[0039] In one possible implementation, the lifting component is a vertically telescopic second hydraulic cylinder, the cylinder body of which is fixedly connected to the worktable, and the end of the piston rod of the second hydraulic cylinder forms the lifting end.

[0040] The subway air conditioner frame welding platform provided by this invention has the following advantages compared with the prior art: Before welding, the clamping component is initially positioned close to the edge of the workbench, firmly pressing the air conditioner frame onto the workbench. This ensures that the air conditioner frame will not shift due to vibration or operating force during welding, providing a stable foundation for welding accuracy. After welding, the lifting component is activated, and the lifting end rises upward, causing the air conditioner frame to rise synchronously. At this time, the moving end of the connecting component moves under the action of the guide structure, causing the moving end to slide away from the air conditioner frame while rising, thereby driving the clamping component to translate away from the air conditioner frame, ultimately creating a sufficient distance between the clamping component and the air conditioner frame. Compared with the spatial interference caused by the traditional clamping mechanism being fixed to the edge of the workbench and the hoisted air conditioner frame, the outward avoidance design of the clamping component in this invention ensures that when the air conditioner frame is lifted by hoisting equipment, there will be no interference or collision between the air conditioner frame and the clamping component. Attached Figure Description

[0041] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0042] Figure 1 This is a schematic diagram of the overall structure of the subway air conditioner frame welding platform provided in an embodiment of the present invention;

[0043] Figure 2 A cross-sectional view of the subway air conditioner frame welding platform provided in an embodiment of the present invention;

[0044] Figure 3 This is another sectional view of the subway air conditioner frame welding platform provided in an embodiment of the present invention;

[0045] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle.

[0046] In the diagram: 1. Workbench; 11. Guide groove; 12. First slide groove; 13. Support part; 2. Clamping part; 21. Hinge support; 211. Hinge shaft; 212. First slider; 22. Driving part; 23. Clamping arm; 231. Second slide groove; 232. Guide part; 2321. Notch; 24. Clamping head; 241. Mating inclined surface; 242. Sliding part; 243. Pressing part; 251. First gear; 252. Second gear; 253. Rack; 2531. Second slider; 254. Pushing part; 2541. Pushing inclined surface; 26. Spring; 3. Lifting part; 4. Connecting part; 41. Fixing part; 411. Pad; 42. Connecting part; 421. Butt joint. Detailed Implementation

[0047] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0048] Please see Figure 1 and Figure 2 The subway air conditioner frame welding platform provided by this invention will now be described. The subway air conditioner frame welding platform includes a worktable 1, multiple clamping members 2, and multiple lifting members 3. The worktable 1 is used to place the air conditioner frame. The multiple clamping members 2 are arranged at intervals around the worktable 1, cooperating with each other to fix the air conditioner frame, and each has the freedom to move towards and away from the worktable 1. The multiple lifting members 3 are all disposed on the worktable 1 and correspond one-to-one with the multiple clamping members 2. Each lifting member 3 has a lifting end for lifting the air conditioner frame.

[0049] Each lifting end is connected to the corresponding clamping member 2 via a connector 4. The connector 4 has a fixed end connected to the lifting end and a movable end connected to the clamping member 2, and each movable end has a guide structure between itself and the worktable 1.

[0050] When the air conditioner frame is lifted at the lifting end, the fixed end rises synchronously, and the moving end, under the action of the guide structure, drives the clamping part 2 to move away from the worktable 1 to avoid the movement trajectory of the air conditioner frame.

[0051] During welding, the lifting component 3 is in a retracted state, and the air conditioner frame is placed stably on the workbench 1. Multiple clamping components 2 are positioned to fit against the workbench 1, pressing the air conditioner frame firmly onto the workbench 1 from different directions. This effectively limits the displacement of the air conditioner frame caused by external forces during welding, ensuring precise alignment of the welded joints of each alloy profile and improving the welding quality of the air conditioner frame.

[0052] After the air conditioner frame is welded, the lifting end of the lifting component 3 lifts the air conditioner frame upward through the fixed end of the connecting component 4. At the same time, the moving end of the connecting component 4, guided by the guide structure, moves the clamping component 2 away from the worktable 1, thereby clearing the hoisting path around and above the air conditioner frame and ensuring a safe and smooth hoisting process. During this process, the clamping component 2 avoids the moving trajectory of the air conditioner frame as it is lifted, avoiding spatial interference between the clamping mechanism and the hoisting equipment in traditional platforms, and ensuring the safe hoisting and separation of the air conditioner frame after welding.

[0053] In some embodiments, see Figure 2 and Figure 3 The clamping member 2 includes a hinge support 21, a clamping arm 23, and a clamping head 24. The hinge support 21 is laterally slidable on the outside of the worktable 1 and has the freedom to move towards and away from the worktable 1. The moving end is connected to the hinge support 21.

[0054] The clamping arm 23 is hinged to the hinge support 21, with a swing end and a connecting end at its two ends. The clamping arm 23 has a clamping posture with the swing end above the air conditioner frame, and a clearance posture with the swing end avoiding the space above the air conditioner frame. The connecting end is driven by a drive unit 22 to switch the clamping arm 23 between the clamping posture and the clearance posture.

[0055] The clamping head 24 is slidably disposed at the swing end of the clamping arm 23. The clamping head 24 has a clamping position and an avoidance position, and has an elastic degree of freedom to move from the clamping position to the avoidance position.

[0056] The gripping head 24 is connected to the gripping arm 23 via a linkage component, so that when the gripping arm 23 switches to the avoidance posture, the linkage component drives the gripping head 24 to move synchronously to the avoidance position.

[0057] When the clamping arm 23 is in the clamping posture and the clamping head 24 is in the clamping position, the clamping head 24 can abut against the top surface of the air conditioner frame to restrict the movement of the air conditioner frame relative to the worktable 1. When the clamping arm 23 is in the avoidance posture and the clamping head 24 is in the avoidance position, the clamping head 24 can avoid the movement trajectory of the air conditioner frame.

[0058] It should be noted that the worktable 1 has multiple sets of support parts 13, each corresponding to a clamping member 2. The interior of each support part 13 has a receiving space for accommodating the clamping member 2 and the lifting member 3. A first sliding groove 12 is provided laterally on the support part 13, and a hinge support 21 is located within the receiving space. First sliders 212, suitable for sliding connection with the first sliding groove 12, are fixedly provided on both sides of the hinge support 21, so that the hinge support 21 can move smoothly under the action of the first sliding groove 12 and the first sliders 212, thereby achieving movement towards and away from the worktable 1.

[0059] During the welding process, at the start of assembly welding, the drive component 22 actuates, applying force to the connecting end of the clamping arm 23, causing the clamping arm 23 to rotate to a clamping posture, with the swing end positioned above the air conditioner frame. Simultaneously, the clamping head 24, under the action of the linkage component, moves to the clamping position and fits against the top surface of the air conditioner frame, thereby pressing the air conditioner frame and limiting displacement. After assembly welding is completed, the drive component 22 reverses the direction, driving the clamping arm 23 to switch to an avoidance posture, causing the swing end to move away from the space above the air conditioner frame. At the same time, the linkage component drives the clamping head 24 to move synchronously to the avoidance position. At this point, the clamping head 24 completely avoids the movement trajectory of the air conditioner frame, facilitating the lifting and removal of the air conditioner frame from the worktable 1.

[0060] In some embodiments, see Figure 4 A hinge shaft 211 for rotating the clamping arm 23 is fixedly mounted on the hinge support 21. The linkage assembly includes a first gear 251, a second gear 252, and a rack 253. The first gear 251 is fixedly mounted on the hinge shaft 211. The second gear 252 is rotatably mounted on the clamping arm 23 and meshes with the first gear 251. The rack 253 is slidably mounted on the clamping arm 23 along its length and meshes with the second gear 252. The end of the rack 253 facing the clamping head 24 has a pushing portion 254.

[0061] When the clamping arm 23 switches from the avoidance posture to the clamping posture, the first gear 251 and the second gear 252 transmit kinetic energy to the rack 253, so that the rack 253 pushes the clamping head 24 from the avoidance position to the clamping position through the push part 254 and fixes it in the clamping position.

[0062] Specifically, a second sliding groove 231 is provided on the clamping arm 23 along its length direction, and a second slider 2531 suitable for sliding connection with the second sliding groove 231 is fixedly connected to the rack 253, thereby ensuring the stability of the rack 253 when it moves on the clamping arm 23.

[0063] At the start of welding, the clamping arm 23 switches from a clearance posture to a clamping posture under the control of the drive component 22. When the clamping arm 23 rotates, the first gear 251 remains stationary with the hinge shaft 211, causing the second gear 252 to rotate with the clamping arm 23 while pushing the rack 253 toward the clamping head 24. The pushing part 254 of the rack 253 acts on the clamping head 24, causing the clamping head 24 to move from the clearance position to the clamping position. When welding is completed, the clamping arm 23 switches in the opposite direction, the second gear 252 acts in the opposite direction to cause the rack 253 to retract, the clamping head 24 is released by the pushing part 254 and moves from the clamping position to the clearance position under its own elastic force.

[0064] In some embodiments, see Figure 4The pushing part 254 has a pushing slope 2541 at one end facing the clamping head 24, and the clamping head 24 has a mating slope 241, with the pushing slope 2541 abutting against the mating slope 241.

[0065] When the clamping arm 23 switches from the avoidance posture to the clamping posture, the pushing inclined surface 2541 pushes the clamping head 24 from the avoidance position to the clamping position by cooperating with the inclined surface 241.

[0066] When the clamping arm 23 switches from the avoidance posture to the clamping posture, the pushing part 254 of the rack 253 moves, causing the pushing inclined surface 2541 to abut against the mating inclined surface 241 on the clamping head 24. The inclined surfaces interact to generate a component force, thereby pushing the clamping head 24 from the avoidance position to the clamping position.

[0067] In some embodiments, see Figure 2 and Figure 4 The clamping head 24 includes a sliding portion 242 and a pressing portion 243. The sliding portion 242 is slidably disposed on the clamping arm 23. The pressing portion 243 is ball-hinged to the sliding portion 242.

[0068] The pressing part 243 is connected to the sliding part 242 via a ball joint, and can rotate adaptively with the tilt angle of the top surface of the air conditioner frame to ensure full contact between the pressing part 243 and the top surface of the air conditioner frame, avoiding local pressure damage caused by single-point contact, and enhancing the stability during clamping.

[0069] It should be noted that the inclined surface 241 is provided on the sliding part 242. The swing end of the clamping arm 23 has a guide part 232 suitable for sliding connection with the sliding part 242, and the guide part 232 has a notch 2321 for the push part 254 to enter and exit. The moving direction of the sliding part 242 is perpendicular to the moving direction of the push part 254.

[0070] When the clamping head 24 is in the clamping position, the pushing part 254 passes through the sliding part 242 and extends into the notch 2321, causing the pushing inclined surface 2541 to disengage from the mating inclined surface 241. In this state, when the pressing part 243 presses and fixes the air conditioner frame, the sliding part 242 is subjected to the reaction force of the pressing part 243. Since the pushing part 254 passes through the sliding part 242 and is inserted into the notch 2321, the position of the sliding part 242 is locked by the pushing part 254, thus preventing movement and ensuring the stability of the sliding part 242 and the stability of the air conditioner frame clamping.

[0071] In some embodiments, see Figure 2 and Figure 4 A spring 26 is provided between the clamping head 24 and the clamping arm 23. When the clamping arm 23 switches from the clamping posture to the avoidance posture, the spring 26 pushes the clamping head 24 from the clamping position to the avoidance position.

[0072] Specifically, the spring 26 is sleeved on the sliding part 242, and both ends of the spring 26 are fixedly connected to the sliding part 242 and the guide part 232, respectively. The spring 26 can provide an elastic driving force to the clamping head 24 to move from the clamping position to the avoidance position, so that the clamping head 24 has an elastic degree of freedom to move from the clamping position to the avoidance position.

[0073] In some embodiments, see Figure 2 and Figure 3 The driving component 22 is a first hydraulic cylinder. The cylinder body of the first hydraulic cylinder is hinged to the worktable 1, and the piston rod of the first hydraulic cylinder is hinged to the connecting end of the clamping arm 23.

[0074] The piston rod of the first hydraulic cylinder is hinged to the connecting end of the clamping arm 23, which can output sufficient thrust to drive the clamping arm 23 to press the air conditioner frame. The thrust is stable and can resist the reaction force generated by welding deformation. Faced with the expansion stress generated during the welding of the air conditioner frame, the first hydraulic cylinder can maintain the clamping posture of the clamping arm 23 to ensure the stability of the air conditioner frame position.

[0075] In some embodiments, see Figure 2 The guiding structure includes a guide groove 11 and a docking part 421. The guide groove 11 is formed on the worktable 1. The docking part 421 is fixedly mounted on the moving end and slidably embedded within the guide groove 11, allowing the moving end to have the freedom to move along the extension direction of the guide groove 11. The guide groove 11 extends from bottom to top away from the worktable 1, so that when the fixed end moves upward, the moving end moves synchronously along the guide groove 11, driving the clamping member 2 to move away from the worktable 1.

[0076] Specifically, the guide groove 11 corresponds one-to-one with the clamping member 2, and the guide groove 11 is provided on the support part 13.

[0077] The guide groove 11 extends from bottom to top away from the worktable 1. The docking part 421 is slidably connected to the guide groove 11, so that while the fixed end of the connector 4 rises with the lifting part 3, the moving end of the connector 4 moves outward along with the docking part 421, thereby causing the moving end to drive the clamping part 2 to avoid the moving trajectory of the air conditioner frame.

[0078] The cooperation between the guide groove 11 and the docking part 421 restricts the unnecessary movement of the moving end, ensuring that the clamping part 2 moves synchronously along the preset trajectory, avoiding the avoidance position deviation caused by shaking, and ensuring that there is no interference in any direction during the removal of the air conditioner frame.

[0079] In some embodiments, see Figure 2 and Figure 3The connector 4 includes a fixing part 41 and a connecting part 42. The fixing part 41 is fixedly mounted on the lifting end, forming a fixed end. One end of the connecting part 42 is laterally slidably connected to the fixing part 41, and the other end is vertically slidably connected to the clamping member 2. The end of the connecting part 42 opposite to the fixing part 41 forms a movable end.

[0080] Specifically, the hinge support 21 has a dovetail groove opened in the vertical direction, and the connecting part 42 has a dovetail block suitable for sliding connection with the dovetail groove, so that the connecting part 42 and the hinge support 21 can achieve vertical sliding connection, while the connecting part 42 can also drive the hinge support 21 to achieve lateral movement.

[0081] During operation, when the lifting end is raised, the fixed part 41, as the fixed end, rises with the lifting end to provide vertical support for the air conditioner frame. One end of the connecting part 42 slides laterally with the fixed part 41 to allow horizontal displacement, and the other end of the connecting part 42, as the moving end, guides the clamping part 2 to move and avoid the removal of the air conditioner frame under the action of the guide structure.

[0082] In some embodiments, see Figure 2 and Figure 3 A pad 411 is bolted to the upper surface of the fixing part 41. The pad 411 is used to contact the air conditioner frame and provide support for the air conditioner frame. After long-term use, the surface of the pad 411 will inevitably be worn. The flatness after wear will not meet the welding requirements of the air conditioner frame. At this time, the workers can remove the pad 411 and re-grind it to restore the flatness of the surface of the pad 411, thereby ensuring the stability of the air conditioner frame when placed on the pad 411 for welding operations and the flatness of the air conditioner frame assembly welding.

[0083] In some embodiments, see Figure 3 The lifting component 3 is a second hydraulic cylinder that extends vertically. The cylinder body of the second hydraulic cylinder is fixedly connected to the worktable 1, and the end of the piston rod of the second hydraulic cylinder forms a lifting end.

[0084] Specifically, the second hydraulic cylinder is located within the accommodating space of the support portion 13.

[0085] The second hydraulic cylinder, acting as a lifting component 3, can output sufficient lifting force to raise heavy-duty air conditioner frames. The piston rod of the second cylinder extends and retracts smoothly, allowing for a slow and controlled lifting of the air conditioner frame, preventing weld seam cracking or frame deformation due to impact. For large air conditioner frames welded from multiple alloy profiles, the second hydraulic cylinder provides stable support, ensuring the frame remains level during lifting. The hydraulic system allows for precise control of the extension length of the second hydraulic cylinder's piston rod, raising the air conditioner frame to a height compatible with the lifting device, facilitating device operation.

[0086] In summary, compared with existing technologies, the subway air conditioner frame welding platform provided by this invention, before welding, has the clamping member 2 positioned close to the edge of the workbench 1, firmly pressing the air conditioner frame onto the workbench 1. This ensures that the air conditioner frame will not shift due to vibration or operating force during welding, providing a stable foundation for welding accuracy. After welding, the lifting member 3 is activated, and the lifting end rises, causing the air conditioner frame to rise synchronously. At this time, the moving end of the connecting member 4 moves under the action of the guide structure, causing the moving end to slide away from the air conditioner frame while rising, thereby driving the clamping member 2 to translate away from the air conditioner frame, ultimately creating a sufficient distance between the clamping member 2 and the air conditioner frame. Compared with the spatial interference caused by the traditional clamping mechanism being fixed to the edge of the workbench and the hoisted air conditioner frame, the outward avoidance design of the clamping member 2 in this invention ensures that when the air conditioner frame is lifted by hoisting equipment, there will be no interference or collision between the air conditioner frame and the clamping member 2.

[0087] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A welding platform for subway air conditioner frames, characterized in that, include: Workbench (1), used to place air conditioner frame; Multiple clamping members (2) are spaced apart around the worktable (1) for cooperating with each other to fix the air conditioner frame, and each has the freedom to move towards and away from the worktable (1); and Multiple lifting components (3) are all set on the workbench (1) and correspond one-to-one with multiple clamping components (2); each lifting component (3) has a lifting end for lifting the air conditioner frame; Each of the lifting ends is connected to the corresponding clamping member (2) via a connector (4). The connector (4) has a fixed end connected to the lifting end and a movable end connected to the clamping member (2). Each movable end has a guide structure between itself and the worktable (1). When the lifting end raises the air conditioner frame, the fixed end rises synchronously, and the moving end drives the clamping part (2) to move away from the worktable (1) under the action of the guide structure, so as to avoid the moving trajectory of the air conditioner frame; The clamping member (2) includes: A hinge support (21) is laterally slidably disposed on the outside of the worktable (1) and has the freedom to move toward and away from the worktable (1); the moving end is connected to the hinge support (21); A clamping arm (23) is hinged to the hinge support (21), and its two ends are a swing end and a connecting end, respectively; the clamping arm (23) has a clamping posture with the swing end above the air conditioner frame, and a clearance posture with the swing end avoiding the space above the air conditioner frame; the connecting end is driven by a drive member (22) to switch the clamping arm (23) between the clamping posture and the clearance posture; and The clamping head (24) is slidably disposed at the swing end of the clamping arm (23); the clamping head (24) has a clamping position and an avoidance position, and has an elastic degree of freedom to move from the clamping position to the avoidance position; The clamping head (24) is connected to the clamping arm (23) via a linkage component, so that when the clamping arm (23) switches to the avoidance posture, the linkage component drives the clamping head (24) to move synchronously to the avoidance position. When the clamping arm (23) is in the clamping posture and the clamping head (24) is in the clamping position, the clamping head (24) can abut against the top surface of the air conditioner frame to restrict the movement of the air conditioner frame relative to the worktable (1); When the clamping arm (23) is in the avoidance posture and the clamping head (24) is in the avoidance position, the clamping head (24) can avoid the moving trajectory of the air conditioner frame; The hinge support (21) is fixedly provided with a hinge shaft (211) for the clamping arm (23) to rotate, and the linkage assembly includes: The first gear (251) is fixedly mounted on the hinge shaft (211); The second gear (252) is rotatably mounted on the clamping arm (23) and meshes with the first gear (251); and A rack (253) is slidably disposed on the clamping arm (23) along the length direction of the clamping arm (23) and meshes with the second gear (252); the rack (253) has a pushing part (254) at one end facing the clamping head (24). When the clamping arm (23) switches from the avoidance posture to the clamping posture, the first gear (251) and the second gear (252) transmit kinetic energy to the rack (253), so that the rack (253) pushes the clamping head (24) from the avoidance position to the clamping position through the pushing part (254) and fixes it in the clamping position.

2. The subway air conditioner frame welding platform as described in claim 1, characterized in that, The pushing part (254) has a pushing slope (2541) at one end facing the clamping head (24), and the clamping head (24) has a mating slope (241), the pushing slope (2541) abutting against the mating slope (241); When the clamping arm (23) switches from the avoidance posture to the clamping posture, the pushing inclined surface (2541) pushes the clamping head (24) from the avoidance position to the clamping position through the cooperating inclined surface (241).

3. The subway air conditioner frame welding platform as described in claim 1, characterized in that, The clamping head (24) includes: A sliding part (242) is slidably disposed on the clamping arm (23); The pressing part (243) is ball-hinged onto the sliding part (242).

4. The subway air conditioner frame welding platform as described in claim 1, characterized in that, A spring (26) is provided between the clamping head (24) and the clamping arm (23); When the clamping arm (23) switches from the clamping posture to the avoidance posture, the spring (26) pushes the clamping head (24) to move from the clamping position to the avoidance position.

5. The subway air conditioner frame welding platform as described in claim 1, characterized in that, The driving component (22) is a first hydraulic cylinder, the cylinder body of the first hydraulic cylinder is hinged to the worktable (1), and the piston rod of the first hydraulic cylinder is hinged to the connecting end.

6. The subway air conditioner frame welding platform as described in claim 1, characterized in that, The guiding structure includes: Guide groove (11) is formed on the worktable (1); and The docking part (421) is fixedly disposed on the moving end and slidably embedded in the guide groove (11) so that the moving end has the freedom to move along the extension direction of the guide groove (11); The guide groove (11) extends from bottom to top away from the worktable (1) so that when the fixed end moves upward, the moving end moves synchronously along the guide groove (11) and drives the clamping member (2) to move away from the worktable (1).

7. The subway air conditioner frame welding platform as described in claim 1, characterized in that, The connector (4) includes: A fixing part (41) is fixedly disposed on the lifting end; the fixing part (41) forms the fixing end; The connecting part (42) is laterally slidably connected to the fixing part (41) at one end and vertically slidably connected to the clamping member (2) at the other end; the connecting part (42) forms the moving end at the end opposite to the fixing part (41).

8. The subway air conditioner frame welding platform as described in claim 1, characterized in that, The lifting component (3) is a vertically telescopic second hydraulic cylinder. The cylinder body of the second hydraulic cylinder is fixedly connected to the worktable (1), and the end of the piston rod of the second hydraulic cylinder forms the lifting end.

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