Tricycle carriage robot welding tool

Abstract

The invention discloses a tricycle carriage robot welding tool, and relates to the technical field of welding equipment. Comprising a welding table; the supporting beam conveying belt assembly is arranged on the welding table. The frame conveying table and the frame discharging table are arranged on the two opposite sides of the welding table correspondingly. The robot arm laser welding machine is arranged at the top of the welding table, and the position of the robot arm laser welding machine corresponds to the position of the frame conveying table up and down; the supporting beam conveying belt assembly comprises an operation table and a conveying belt which are sequentially arranged at intervals from top to bottom, a plurality of through grooves and a plurality of supporting beam containing frames are arranged on the conveying belt in the conveying direction, the through grooves and the supporting beam containing frames are sequentially distributed in a staggered mode, and a plurality of lifting air cylinders are arranged below the conveying belt. The frame conveying table comprises a supporting table arranged outside the welding table, a lifting air cylinder is arranged on the bottom face of the supporting table, and a lifting plate is arranged on a piston rod of the lifting air cylinder. The device has the advantages of reducing the labor intensity, improving the accuracy of the welding position and the like.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding equipment, in particular to a robot welding tool for a three-wheeled vehicle carriage. BACKGROUND

[0002] The carriage of an electric three-wheeled vehicle is composed of a bottom plate and a frame by welding connection, wherein the welding production of the three-wheeled vehicle carriage bottom plate requires welding a rectangular frame and multiple support beams together. At present, most welding operations need to manually hold the support beam and place it in the corresponding position in the rectangular frame for welding one by one, which is prone to large deviation in the placement position of the support beam, and also causes large labor intensity and complex operation of workers, ultimately affecting the quality after welding. SUMMARY

[0003] In view of the above technical deficiencies, the purpose of the present application is to provide a robot welding tool for a three-wheeled vehicle carriage, which has the advantages of reducing labor intensity and improving welding position accuracy.

[0004] To solve the above technical problems, the present application adopts the following technical scheme: the present application provides a robot welding tool for a three-wheeled vehicle carriage, comprising: a welding table; a support beam conveyor belt assembly, which is arranged on the welding table; a frame conveying table; a frame blanking table, the frame conveying table and the frame blanking table being arranged on opposite sides of the welding table; a robot arm laser welding machine, which is arranged on the top of the welding table, and the position of the robot arm laser welding machine corresponds to the position of the frame conveying table; The support beam conveyor belt assembly comprises an operation table and a conveyor belt arranged in sequence and spaced apart from top to bottom, a plurality of through slots and a plurality of support beam placing racks are arranged on the conveyor belt along the conveying direction, and the through slots and the support beam placing racks are distributed in sequence and staggered, and a plurality of lifting cylinders are arranged below the conveyor belt. The frame conveying table comprises a support table arranged outside the welding table, a lifting cylinder is arranged on the bottom surface of the support table, and a lifting plate is arranged on the piston rod of the lifting cylinder.

[0005] Preferably, the conveyor belt comprises: a driving roller; a driven roller, the driving roller and the driven roller being arranged in parallel and spaced apart below the operation table; The conveying belt is in a closed loop structure, the conveying belt is sleeved outside the driving roller and the driven roller, the through grooves and the support beam placing racks are staggered along the conveying direction of the conveying belt, the conveying belt can rotate under the action of the driving roller and the driven roller, thereby the conveying of the support beam can be realized, and the welding work of the tricycle carriage bottom plate can be completed.

[0006] Preferably, the support beam placing rack comprises: a placing rack bottom plate embedded in the conveying belt; a placing groove arranged in the placing rack bottom plate; a placing block group, the placing block group is provided with two, and the two placing block groups are arranged in the opposite two ends of the placing groove respectively, so as to place the support beam with a length suitable for the tricycle carriage bottom plate of different sizes on the placing block group for conveying the support beam, thereby facilitating welding.

[0007] Preferably, the placing block group comprises: a fixed block; a movable block, the fixed block and the movable block are arranged in the placing groove in sequence and side by side, and the two movable blocks are located between the two fixed blocks; a connecting rod, the two ends of the connecting rod in the length direction are movably connected with the two movable blocks respectively; a first clamping groove, the first clamping groove is provided with a plurality of, and one first clamping groove is arranged on the top surface of each fixed block; a second clamping groove, the second clamping groove is provided with a plurality of, and one second clamping groove is arranged on the top surface of each movable block, the length direction of the first clamping groove is the same as that of the second clamping groove, and the width of the second clamping groove is greater than that of the first clamping groove, so as to place the support beam with a length suitable for the tricycle carriage bottom plate of different sizes in the first clamping groove on the fixed block or in the second clamping groove on the movable block, so as to convey the support beam to the position suitable for welding work.

[0008] Preferably, the opposite two side walls of the movable block are provided with side sliding blocks, the inner wall of the placing groove is vertically provided with sliding block grooves corresponding to the side sliding blocks one by one, the side sliding blocks are slidably arranged in the sliding block grooves at the corresponding positions, and the bottom surface of the movable block is provided with a lower sliding block matched with the first clamping groove, so as to lift the support beam to the position of the tricycle carriage bottom plate placed on the operation table through the movable block, so as to weld the support beam on the tricycle carriage bottom plate.

[0009] Preferably, the two ends of the connecting rod in the length direction are movably penetrated into the two movable blocks respectively, and the two ends of the connecting rod in the length direction are provided with return springs horizontally, and the ends of the return springs away from the connecting rod are connected with the movable blocks, so as to slide the movable blocks to the top surface of the fixed block at the corresponding position under the action of the return spring when the movable block is lifted.

[0010] Preferably, the placing rack bottom plate is provided with positioning guide grooves on the side wall near the end of the frame conveying table and the side wall near the end of the frame discharging table, a plurality of guide rods are horizontally arranged on the welding table and matched with the positioning guide grooves, the guide rods are slidingly arranged in the corresponding positioning guide grooves, so that the guide rods can slide in the corresponding positioning guide grooves when the placing rack bottom plate is moved by the conveying belt, thereby the position of the placing rack bottom plate is positioned, and the accuracy of the welding position of the support beam on the three-wheeled vehicle compartment bottom plate is improved.

[0011] Preferably, a plurality of pneumatic clamping cylinders are circumferentially arranged on the top surface of the operation table, and notch grooves are arranged on the top surface of the operation table near the end of the frame conveying table and the end of the frame discharging table, and the bottom surface of the notch groove is in the same horizontal plane as the top surface of the frame discharging table, so that the three-wheeled vehicle compartment bottom plate placed on the operation table is clamped and positioned by the pneumatic clamping cylinder, and the accuracy of the welding position of the support beam is ensured.

[0012] Preferably, a cross bar is horizontally arranged on the piston rod of the lifting cylinder, the length direction of the cross bar is parallel to the length direction of the connecting rod, a bracket is arranged on the cross bar, and the position of the bracket is matched with the position of the connecting rod, so that the connecting rod and the movable block are lifted from the placing groove by starting the lifting cylinder, and the support beam is lifted to a position matched with the three-wheeled vehicle compartment bottom plate for welding operation.

[0013] Preferably, the lifting cylinders are spaced apart along the conveying direction of the conveying belt, and the distance between the adjacent two lifting cylinders is matched with the distance between the adjacent two through grooves, so that the support beam can be lifted to a position matched with the three-wheeled vehicle compartment bottom plate for welding operation according to needs.

[0014] The present application has the following advantages: 1. The support beam conveying belt assembly is arranged to place the support beam on the support beam placing rack, and automatically convey the support beam to a position corresponding to the three-wheeled vehicle compartment bottom plate on the operation table under the action of the conveying belt, thereby avoiding the disadvantages of manual holding and improving the operation efficiency and the accuracy of the welding position.

[0015] 2. The movable block can be adjusted to different positions between the fixed block according to the different widths of the support beam, so that support beams of different widths can be placed, and the diversity of welding operation is improved. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 A structure schematic view of a tricycle carriage robot welding tool provided by an embodiment of the present application.

[0018] Figure 2 A support beam placement rack structure schematic view of a tricycle carriage robot welding tool provided by an embodiment of the present application.

[0019] Figure 3 For Figure 2 An enlarged schematic view of structure at A.

[0020] Figure 4 A support beam conveyor belt assembly structure schematic view of a tricycle carriage robot welding tool provided by an embodiment of the present application.

[0021] Figure 5 A support beam placement rack structure schematic view of a tricycle carriage robot welding tool provided by an embodiment of the present application.

[0022] Figure 6 A support beam placement rack structure schematic view of a tricycle carriage robot welding tool provided by an embodiment of the present application.

[0023] Figure 7 A support beam placement rack structure schematic view of a tricycle carriage robot welding tool provided by an embodiment of the present application.

[0024] Figure 8 A support beam placement rack structure schematic view of a tricycle carriage robot welding tool provided by an embodiment of the present application.

[0025] BRIEF DESCRIPTION OF REFERENCE NUMERALS: 1, welding table; 2, support beam conveyor belt assembly; 21, conveyor belt; 211, driving roller; 212, driven roller; 213, conveying belt; 22, through slot; 23, support beam placement rack; 231, placement rack bottom plate; 232, placement slot; 233, placement block group; 2331, fixed block; 2332, movable block; 2333, connecting rod; 2334, first clamping groove; 2335, second clamping groove; 2336, side sliding block; 2337, sliding block slot; 2338, lower sliding block; 2339, return spring; 24, lifting cylinder; 241, crossbar; 242, support seat; 25, operation table; 251, pneumatic clamping cylinder; 252, notch slot; 3, frame conveying table; 31, support table; 32, lifting cylinder; 33, lifting plate; 4, frame blanking table; 5, robot arm laser welding machine; 6, positioning guide slot. DETAILED DESCRIPTION

[0026] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work belong to the protection scope of the present application.

[0027] Embodiment one As shown in Figures 1 to 2 , Figures 4 to 5 , the present application provides a tricycle carriage robot welding tool, which comprises a welding table 1; a support beam conveying belt assembly 2 is arranged on the welding table 1; a frame conveying table 3 and a frame blanking table 4 are respectively arranged on the opposite two sides of the welding table 1; a robot arm laser welding machine 5 is arranged on the top of the welding table 1, and the position of the robot arm laser welding machine 5 corresponds to the position of the frame conveying table 3; the support beam conveying belt assembly 2 comprises an operation table 25 and a conveying belt 21 arranged in sequence and spaced apart from top to bottom, a plurality of through grooves 22 and a plurality of support beam placing racks 23 are arranged on the conveying belt 21 along the conveying direction, and the through grooves 22 and the support beam placing racks 23 are distributed in sequence and staggered, and a plurality of lifting cylinders 24 are arranged below the conveying belt 21; the frame conveying table 3 comprises a support table 31 arranged outside the welding table 1, a lifting cylinder 32 is arranged on the bottom surface of the support table 31, and a lifting plate 33 is arranged on the piston rod of the lifting cylinder 32.

[0028] Before welding, the tricycle carriage bottom plate (the tricycle carriage bottom plate is a rectangular frame structure) is pushed from the lifting plate 33 to the operation table 25 (the lifting cylinder 32 can drive the lifting plate 33 to realize lifting, so that the operating personnel can place the tricycle carriage bottom plate on the lifting plate 33); at the same time, the support beam is placed on the support beam placing rack 23 in the frame conveying table 3, each support beam can be conveyed to the corresponding position of the tricycle carriage bottom plate under the action of the conveying belt 21, and the lifting cylinder 24 can lift the support beam at the corresponding position into the tricycle carriage bottom plate (since a plurality of through grooves 22 are arranged on the conveying belt 21 along the conveying direction, and the through grooves 22 and the support beam placing racks 23 are distributed in sequence and staggered, therefore when the support beam is located in the support beam placing rack 23 at the upper position of the conveying belt 21, the piston rod of the lifting cylinder 24 can pass through the through groove 22 at the lower position of the conveying belt 21, so that the support beam at the corresponding position can be lifted into the tricycle carriage bottom plate), so that the support beam can be welded in the tricycle carriage bottom plate by the robot arm laser welding machine 5 (the robot arm laser welding machine 5 is a prior art, so it is not described here), when the welding of the tricycle carriage bottom plate is completed, the tricycle carriage bottom plate can be moved from the operation table 25 to the frame blanking table 4, and the welding of the carriage frame can be performed again, so as to reduce the frequent movement of the tricycle carriage during welding, and improve the welding efficiency.

[0029] Multiple ball bearings are embedded in a matrix on the top surface of the lifting plate 33, which facilitates the tricycle carriage floor to be pushed from the lifting plate 33 onto the operating platform 25.

[0030] Example 2 Based on Example 1, such as Figures 1 to 8 As shown, the conveyor belt 21 includes a drive roller 211; the drive roller 211 and driven roller 212 are arranged side-by-side and spaced apart below the operating table 25; the conveyor belt 213 has a closed-loop structure, and is sleeved on the outside of the drive roller 211 and driven roller 212; the through groove 22 and the support beam placement frame 23 are staggered along the conveying direction of the conveyor belt 213; the support beam placement frame 23 includes a placement frame base plate 231, which is embedded in the conveyor belt 213; the placement groove 232 is disposed in the placement frame base plate 231; two placement block groups 233 are provided, and... Two placement block groups 233 are respectively disposed at opposite ends of the placement slot 232; each placement block group 233 includes a fixed block 2331; the fixed block 2331 and the movable block 2332 are arranged side by side in the placement slot 232, with the two movable blocks 2332 located between the two fixed blocks 2331; the two ends of the connecting rod 2333 along its length are respectively movably connected to the two movable blocks 2332; multiple slots 2334 are provided, and each fixed block 2331 has one slot 2334 on its top surface; multiple slots 2335 are provided, and each Each movable block 2332 has a second slot 2335 on its top surface. The length direction of the first slot 2334 is the same as that of the second slot 2335, and the width of the second slot 2335 is greater than that of the first slot 2334. Each of the two opposing side walls of the movable block 2332 has a side slider 2336. The inner wall of the placement groove 232 has vertically arranged slider grooves 2337 corresponding to the side sliders 2336. The side sliders 2336 slide within their corresponding slider grooves 2337. The bottom surface of the movable block 2332 has a groove corresponding to the first slot 2335. The 34-phase matching lower slider 2338; the two ends of the connecting rod 2333 in the length direction respectively move through into the two movable blocks 2332, and both ends of the connecting rod 2333 in the length direction are provided with horizontal return springs 2339, and the end of the return spring 2339 away from the connecting rod 2333 is connected to the movable block 2332; a horizontal crossbar 241 is provided on the piston rod of the lifting cylinder 24, the length direction of the crossbar 241 is parallel to the length direction of the connecting rod 2333, and a support 242 is provided on the crossbar 241, the position of the support 242 is adapted to the position of the connecting rod 2333.

[0031] The common action of the driving roller 211 and the driven roller 212 can drive the conveying belt 213 to rotate, and then the support beam placed on the support beam placing rack 23 can be conveyed; according to the different sizes of the tricycle carriage bottom plate, the support beam with a length suitable for the tricycle carriage bottom plate is placed on the placing block group 233, so that the support beam is conveyed, thereby facilitating welding (that is, the two ends of the support beam in the length direction are respectively placed in the clamping groove one 2334 on the two fixed blocks 2331 (when the length of the support beam is relatively long) or the clamping groove two 2335 on the two movable blocks 2332 (when the length of the support beam is relatively short)); when the support beam placing rack 23 moves to a position corresponding to the tricycle carriage bottom plate, the lifting cylinder 24 is started, and the cross rod 241 and the support seat 242 can simultaneously move close to the position close to the connecting rod 2333, so that the connecting rod 2333 and the movable block 2332 are lifted from the placing groove 232, that is, the support beam is lifted to a position corresponding to the tricycle carriage bottom plate for welding work.

[0032] When the length of the support beam is relatively long (because the width of the clamping groove two 2335 is greater than the width of the clamping groove one 2334, or when the width of the support beam is relatively wide), the connecting rod 2333 is pulled to the outside of the placing groove 232, so that the side sliding blocks 2336 on the movable blocks 2332 slide in the corresponding sliding block grooves 2337, respectively; when the movable blocks 2332 slide to the outside of the sliding block grooves 2337 (at this time, the bottom surface of the movable block 2332 and the top surface of the fixed block 2331 are in the same horizontal plane, and the lower sliding block 2338 on the bottom surface of the movable block 2332 corresponds to the position of the clamping groove one 2334), under the action of the return spring 2339, the movable block 2332 can slide away from the connecting rod 2333, that is, the movable block 2332 can slide in the clamping groove one 2334, and the distance between the two movable blocks 2332 is maximum at this time, and then the two ends of the support beam in the length direction can be respectively placed in the clamping groove two 2335 on the two movable blocks 2332; when the support beam moves to a position corresponding to the tricycle carriage bottom plate, the lifting cylinder 24 is started, and the connecting rod 2333, the movable block 2332 and the support beam placed on the movable block 2332 can be lifted up at the same time through the support seat 242, so as to weld the support beam on the tricycle carriage bottom plate.

[0033] The cross section of the connecting rod 2333 is rectangular, and the support seat 242 is provided with a groove with the same cross section as the connecting rod 2333, which is beneficial to the stability of the movement of the connecting rod 2333 when the support seat 242 lifts the connecting rod 2333, so as to ensure the stability of the position of the support beam and improve the welding quality.

[0034] The movable block 2332 is made of magnetic material, so that when the movable block 2332 is located in the sliding block groove 2337 or on the top surface of the fixed block 2331, the movable block 2332 and the fixed block 2331 can be attracted to each other, which is beneficial to prevent the movable block 2332 from falling off.

[0035] Embodiment three On the basis of embodiment one, as shown in Figure 1 , Figure 4 , Figure 7 The placement rack bottom plate 231 is provided with a positioning guide groove 6 on the side wall close to the end of the frame conveying table 3 and the side wall close to the end of the frame unloading table 4, a plurality of guide rods matched with the positioning guide groove 6 are horizontally arranged on the welding table 1, and the guide rods are slidingly arranged in the corresponding positioning guide groove 6; when the conveying belt 213 drives the movement of the placement rack bottom plate 231, the guide rod can be inserted into the corresponding positioning guide groove 6 (at this time, as the conveying belt 213 continues to convey, the guide rod can slide in the corresponding positioning guide groove 6), so that the conveying belt 213 can keep the position of the placement rack bottom plate 231 stable when moving, thereby facilitating the improvement of the accuracy of the welding position of the support beam on the three-wheeled vehicle compartment bottom plate.

[0036] Embodiment four On the basis of embodiment one, as shown in Figure 1 A plurality of pneumatic clamping cylinders 251 are uniformly distributed on the top surface of the operation table 25 in the circumferential direction, and a notch groove 252 is arranged on the top surface of the operation table 25 close to the end of the frame conveying table 3 and close to the end of the frame unloading table 4, and the bottom surface of the notch groove 252 is in the same horizontal plane as the top surface of the frame unloading table 4; the three-wheeled vehicle compartment bottom plate placed on the operation table 25 can be clamped and fixed by the pneumatic clamping cylinder 251, thereby facilitating the improvement of the accuracy of the welding position of the support beam on the three-wheeled vehicle compartment bottom plate.

[0037] The arrangement of the notch groove 252 facilitates the placement of the three-wheeled vehicle compartment bottom plate from the lifting plate 33 (the lifting cylinder 32 drives the lifting plate 33 to lift, which facilitates the placement of the three-wheeled vehicle compartment bottom plate on the lifting plate 33) through the notch groove 252 on the top surface of the operation table 25 close to the end of the frame conveying table 3 to the operation table 25 before welding, which facilitates the welding of the support beam to the three-wheeled vehicle compartment bottom plate; at the same time, after welding is completed, the three-wheeled vehicle compartment bottom plate on the operation table 25 can be placed through the notch groove 252 on the top surface of the operation table 25 close to the end of the frame unloading table 4 to the frame unloading table 4, and the unloading is completed.

[0038] Embodiment five On the basis of embodiment one, as shown in Figure 4 The lifting cylinders 24 are spaced apart along the conveying direction of the conveying belt 213, and the distance between the adjacent two lifting cylinders 24 is matched with the distance between the adjacent two through grooves 22; according to the need for welding the support beam to different positions of the three-wheeled vehicle compartment bottom plate, the lifting cylinder 24 at the corresponding position can be started, so that the support beam can be lifted to the position of the three-wheeled vehicle compartment bottom plate, thereby facilitating the welding operation, and a plurality of three-wheeled vehicle compartment bottom plates with different requirements can be produced, thereby improving the applicability.

[0039] Obviously, numerous modifications and variations of the present application are possible in light of the above teachings. It is therefore to be understood that within the scope of the appended claims, the application can be practiced otherwise than as specifically described herein.

Claims

1. A robotic welding fixture for a tricycle carriage, characterized in that, include: Welding station (1); Support beam conveyor belt assembly (2), the support beam conveyor belt assembly (2) is set on welding table (1); Chassis conveyor (3); The frame unloading platform (4), the frame conveying platform (3), and the frame unloading platform (4) are respectively set on opposite sides of the welding platform (1); Robotic arm laser welding machine (5) is set on top of welding table (1), and the position of robotic arm laser welding machine (5) corresponds vertically to the position of frame conveyor table (3). Among them, the support beam conveyor belt assembly (2) includes an operating platform (25) and a conveyor belt (21) arranged sequentially from top to bottom. Multiple through slots (22) and multiple support beam placement frames (23) are arranged on the conveyor belt (21) along the conveying direction. The through slots (22) and support beam placement frames (23) are arranged alternately. Multiple lifting cylinders (24) are arranged below the conveyor belt (21). The frame conveying platform (3) includes a support platform (31) set outside the welding platform (1), a lifting cylinder (32) is set on the bottom surface of the support platform (31), and a lifting plate (33) is set on the piston rod of the lifting cylinder (32).

2. The robotic welding fixture for a tricycle carriage as described in claim 1, characterized in that, The conveyor belt (21) includes: Drive roller (211); The driven roller (212), the driving roller (211), and the driven roller (212) are arranged side by side at intervals below the operating table (25); The conveyor belt (213) is a closed-loop structure. The conveyor belt (213) is sleeved on the outside of the drive roller (211) and the driven roller (212). The through groove (22) and the support beam placement frame (23) are staggered along the conveying direction of the conveyor belt (213).

3. The robotic welding fixture for a tricycle carriage as described in claim 2, characterized in that, The support beam placement frame (23) includes: The base plate (231) of the placement rack is embedded in the conveyor belt (213); The placement slot (232) is set inside the base plate (231) of the placement rack; Placement block group (233) is provided in two, and the two placement block groups (233) are respectively located in opposite ends of the placement slot (232).

4. The robotic welding fixture for a three-wheeled vehicle carriage as described in claim 3, characterized in that, The placement block group (233) includes: Fixed block (2331); The movable block (2332), the fixed block (2331) and the movable block (2332) are arranged side by side in the placement slot (232), and the two movable blocks (2332) are located between the two fixed blocks (2331); The connecting rod (2333) is movably connected to two movable blocks (2332) at both ends along its length. Card slot 1 (2334) is provided in multiple ways, and each fixing block (2331) has a card slot 1 (2334) on its top surface. Slot 2 (2335) is provided in multiple ways, and each movable block (2332) has a slot 2 (2335) on its top surface. The length direction of slot 1 (2334) is the same as that of slot 2 (2335), and the width of slot 2 (2335) is greater than the width of slot 1 (2334).

5. The robotic welding fixture for a three-wheeled vehicle carriage as described in claim 4, characterized in that, The movable block (2332) has side sliders (2336) on its two opposing side walls. The inner wall of the placement groove (232) has vertically arranged slider grooves (2337) that correspond one-to-one with the side sliders (2336). The side sliders (2336) are slidably arranged in the corresponding slider grooves (2337). The bottom surface of the movable block (2332) has a lower slider (2338) that is compatible with the first slot (2334).

6. The robotic welding fixture for a three-wheeled vehicle carriage as described in claim 5, characterized in that, The two ends of the connecting rod (2333) in the length direction respectively move through the two movable blocks (2332), and both ends of the connecting rod (2333) in the length direction are provided with horizontal return springs (2339), and the end of the return spring (2339) away from the connecting rod (2333) is connected to the movable block (2332).

7. The robotic welding fixture for a three-wheeled vehicle carriage as described in claim 3, characterized in that, Positioning guide grooves (6) are provided on the side wall of the base plate (231) near the end of the frame conveyor (3) and the side wall near the end of the frame unloading platform (4). Multiple guide rods that are compatible with the positioning guide grooves (6) are horizontally arranged on the welding table (1). The guide rods are slidably arranged in the positioning guide grooves (6) at the corresponding positions.

8. The robotic welding fixture for a tricycle carriage as described in claim 1, characterized in that, Multiple pneumatic clamping cylinders (251) are evenly distributed along the circumference on the top surface of the operating table (25). The top surface of the operating table (25) is provided with notches (252) at the end near the frame conveyor (3) and the end near the frame unloading platform (4). The bottom surface of the notches (252) is on the same horizontal plane as the top surface of the frame unloading platform (4).

9. The robotic welding fixture for a tricycle carriage as described in claim 4, characterized in that, A horizontal rod (241) is provided on the piston rod of the lifting cylinder (24). The length direction of the horizontal rod (241) is parallel to the length direction of the connecting rod (2333). A support (242) is provided on the horizontal rod (241). The position of the support (242) is adapted to the position of the connecting rod (2333).

10. The robotic welding fixture for a three-wheeled vehicle carriage as described in claim 2, characterized in that, The lifting cylinders (24) are spaced apart along the conveying direction of the conveyor belt (213), and the distance between two adjacent lifting cylinders (24) is matched with the distance between two adjacent through slots (22).

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