Flexible laser welding station

Abstract

The application discloses a flexible laser welding workstation, which comprises a house type structure, the house type structure is provided with a first shielding house and a second shielding house which are symmetrically arranged along a stair structure, a left side door is arranged on a first left wall plate of the first shielding house, a right side door is arranged on a right wall plate of the second shielding house, and a plurality of heat dissipation exhaust holes are arranged on the roof of the first shielding house and the second shielding house; eight sets of positioners are arranged in the two shielding houses through gate type structures, and lifting safety protection doors connected with a control module are arranged at the gate type structures of the two shielding houses; and the two shielding houses are provided with independent walking mechanisms and laser welding robots. The application meets the efficient processing requirement of the automobile water tank frame assembly through the integrated house type structure and the symmetric distribution of multiple point type working positions, and the multi-station welding of the laser welding robot is realized through the guide rail sliding, so that the efficiency is improved, and the safety and stability of the work are met.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing equipment, and in particular to a flexible laser welding workstation. Background Technology

[0002] In the process of machining automotive radiator frame assemblies, traditional welding processes are not only inefficient, but also require the full utilization of the automation advantages of welding robots to improve product quality and efficiency, enhance process equipment levels, and reduce the labor intensity of workers. Designing robotic welding workstations to meet these needs is a potential direction.

[0003] Laser welding is an important application of laser material processing technology, and it is widely used, especially in the processing of automotive parts, particularly for welding automotive components with poor accessibility. Typically, to meet the needs of multi-station welding, multiple welding machines are installed in the workshop to satisfy the work requirements of multiple stations, such as eight welding robots operating independently at eight stations. This inevitably increases the equipment procurement cost. Therefore, directly purchasing existing external equipment sets can no longer meet our company's needs. The main problem addressed by this invention is to independently design a welding workstation that is easy to transport, low in cost, highly efficient, occupies little space, and has high work efficiency.

[0004] Safety is paramount for laser welding robots, encompassing two aspects: collision protection for the robot itself and worker safety. Regarding the second issue, typically, welding robots operate within a fixed area equipped with steel protective fences to prevent workers from entering the robot's operating area. For personnel needing to enter or exit the robot's safe zone, safety gates are a crucial access control technology; workers can only enter the robot's safe zone when the safety gate is open. This design cannot achieve standardized modular design. Regarding the first issue, robot safety primarily involves collision protection. This includes not only considering collisions between the robot and foreign objects within the rotating working area but also addressing the collision protection of the robot's moving base during its back-and-forth movement. Summary of the Invention

[0005] The present invention aims to solve the above-mentioned technical problems and provide a flexible laser welding workstation with reasonable structural design, small site occupation, high welding efficiency, safe operation, and the ability to freely select different workstations for work.

[0006] The present invention also provides a welding system for automotive radiator frame assemblies, which is based on a flexible laser welding workstation and has a simple structure and is easy to use.

[0007] To solve the above-mentioned technical problems, the embodiments of the present invention provide a flexible laser welding workstation, which includes a room-like structure arranged in a straight line, with a staircase structure in the middle connecting to the second-floor platform of the room-like structure. The second-floor platform is equipped with a protective railing. A first shielding room and a second shielding room are symmetrically arranged along the staircase structure. The first left wall panel of the first shielding room has a left side door, and the right wall panel of the second shielding room has a right side door. The roofs of the first shielding room and the second shielding room are equipped with multiple heat dissipation and ventilation holes.

[0008] The front wall of the first shielding room is equipped with a No. 1 front door and a No. 3 front door. The rear wall of the first shielding room is equipped with a No. 2 rear door, which is symmetrical to the No. 1 front door, and a No. 4 rear door, which is symmetrical to the No. 3 front door. A No. 1 workstation and a No. 2 workstation are symmetrically arranged at the No. 1 front door and the No. 2 rear door. A No. 3 workstation and a No. 4 workstation are symmetrically arranged at the No. 3 front door and the No. 4 rear door. A No. 3 workstation and a No. 4 workstation are symmetrically arranged at the No. 3 front door and the No. 4 rear door.

[0009] The front wall of the second shielding room is equipped with front door No. 5 and front door No. 7. The rear wall of the second shielding room is equipped with rear door No. 6, which is symmetrical to front door No. 5, and rear door No. 8, which is symmetrical to front door No. 5 and rear door No. 6. Workstation No. 5 and workstation No. 6 are symmetrically arranged at front door No. 5 and rear door No. 8. Workstation No. 7 and workstation No. 8 are symmetrically arranged at front door No. 7 and rear door No. 8. Workstation No. 7 and workstation No. 8 are symmetrically arranged at front door No. 7 and rear door No. 8.

[0010] The first shielding room's front door, second rear door, third front door, and fourth rear door, as well as the second shielding room's front door, seventh front door, sixth rear door, and eighth rear door, are equipped with lifting safety doors connected to the control module.

[0011] A first bidirectional guide rail seat is provided at the center of the first shielding room, distributed along the length of the first shielding room. The first bidirectional guide rail seat is provided with a first bidirectional guide rail and a first guide rack parallel to the first bidirectional guide rail. A first slide is mounted on the first bidirectional guide rail via a slider. The first slide is provided with a first drive device that cooperates with the first guide rack. A first welding robot is mounted on the first slide. A first limit switch is mounted on the first slide. The first drive device, the first limit switch, and the first welding robot are connected to the control module.

[0012] The second shielding room is centrally located with a second bidirectional guide rail seat distributed along the length of the second shielding room. The second bidirectional guide rail seat is equipped with a second bidirectional guide rail and a second guide rack parallel to the second bidirectional guide rail. The second bidirectional guide rail is mounted with a second slide table via a slider. The second slide table is equipped with a second drive device that cooperates with the second guide rack. The second slide table is equipped with a second welding robot and a second limit switch. The second drive device, the second limit switch, and the second welding robot are connected to the control module.

[0013] The bottom of the first bidirectional guide rail seat and the second bidirectional guide rail seat are provided with positioning pads, and the ends of the first bidirectional guide rail and the second bidirectional guide rail are provided with positioning buffer devices.

[0014] As can be seen from the above, this invention meets the high-efficiency processing requirements of automotive radiator frame assemblies by combining an integrated room-type structure with a symmetrically distributed multi-point workstation layout, and utilizes guide rail sliding to meet the multi-station welding of laser welding robots, thereby improving efficiency while ensuring work safety and stability.

[0015] In the flexible laser welding workstation provided by this invention, the positioning buffer device adopts a symmetrical bidirectional head structure. This symmetrical bidirectional head structure has symmetrically distributed triangular seats, and a connecting bracket is provided between the parallel triangular seats. The top of the triangular seats is provided with a limiting buffer block with a flat impact surface through a mating block.

[0016] Furthermore, the flexible limiting buffer block is equipped with a rotary replacement device.

[0017] As can be seen from the above, the integrated modular design of the entire workstation not only allows for long-distance transportation using standardized transport tools such as containers, but more importantly, the house-like structure effectively shields against interference from outsiders and provides good safety protection for workers. Furthermore, the presence of lifting doors automatically completes their own safety protection, improving the intelligence of safety protection and the efficiency of work.

[0018] For the welding robot's own collision protection, a buffer structure composed of a rigid base and flexible materials is used to effectively avoid damage to the internal vibrations of the robot's components caused by rigid collisions. It is worth mentioning that, since the flexible material is a consumable, it is necessary to consider both the rapid replacement performance of the replaceable structure and the safety issues such as unauthorized personnel accidentally detaching the flexible material. Here, a rotary flexible detachment structure design ensures that the flexible material can be replaced promptly while preventing accidental detachment or loss of the collision protection material due to unauthorized operation.

[0019] In the flexible laser welding workstation provided by the present invention, the docking block is equipped with spikes by a cantilever, and the bidirectional guide rail seat is equipped with a horizontal hollow cylinder by a bracket. The horizontal hollow cylinder is equipped with a first diaphragm, a second diaphragm, and a third diaphragm by a pressure block. The horizontal hollow cylinder forms an inner cavity through the three diaphragm structure, and the inner cavity contains an air-expanding agent.

[0020] A welding system for an automotive radiator frame assembly includes the aforementioned flexible laser welding workstation and an automotive radiator frame assembly welding fixture detachably mounted on a positioner. The automotive radiator frame assembly welding fixture includes:

[0021] The first tooling base plate has positioner docking mechanisms at both ends that cooperate with the positioner.

[0022] The first left front support fixing frame is set on the first tooling base plate, which includes a first left front top block, a first U-shaped positioning fixing member with a guiding mechanism, and a first left front positioning post for positioning the opening at the left front of the automotive water tank frame assembly.

[0023] The first left limit adjustment bracket fixing structure is set on the first tooling base plate;

[0024] The irregular first left front surface mount limit adjustment bracket fixing structure, which is suspended and installed on the lower pressure seat of the first left limit adjustment bracket, has an L-shaped lower cantilever of the first left front surface mount limit adjustment bracket that is horizontally distributed, an L-shaped upper cantilever of the first left front surface mount limit adjustment bracket that is installed on the lower cantilever of the L-shaped first left front surface mount limit adjustment bracket, and a connector that is installed on the upper cantilever of the L-shaped first left front surface mount limit adjustment bracket.

[0025] The left front car radiator frame assembly lower support assembly is located at the edge of the lower pressure seat of the first left limit adjustment bracket. It has a left front car radiator frame assembly lower support seat, a left front car radiator frame assembly lower support lifting cylinder located on the left front car radiator frame assembly lower support seat, and a left front car radiator frame assembly lower support block located on the left front car radiator frame assembly lower support lifting cylinder.

[0026] The left oblique section of the automotive radiator frame assembly is fixed to the radiator frame support reinforcement component on the first tooling base plate.

[0027] The left steering section fixing component of the automotive radiator frame assembly is mounted on the first tooling base plate;

[0028] The intermediate straight section clamping assembly of the automotive radiator frame assembly is set on the first tooling base plate;

[0029] Right steering section fixing component of automotive radiator frame assembly mounted on the first tooling base plate;

[0030] The right-side inclined section of the automotive radiator frame assembly is fixed to the radiator frame support reinforcement component on the first tooling base plate.

[0031] The first right front support fixing frame is installed on the base plate of the first tooling;

[0032] A suspension lug fixing structure is installed on the first right front wall side of the first tooling base plate;

[0033] The lower support assembly of the right front automotive radiator frame is located at the edge of the lower pressure seat of the first right front wall side mounting lug.

[0034] In the welding system provided by this invention, the fixing structure of the first left limit adjustment bracket includes a first left limit adjustment bracket support frame, a first left limit adjustment bracket positioning cylinder seat provided on the first left limit adjustment bracket support frame, a first left limit adjustment bracket positioning cylinder provided on the first left limit adjustment bracket positioning cylinder, a first left limit adjustment bracket positioning column installed on the first left limit adjustment bracket positioning cylinder, a cylindrical first left limit adjustment bracket lower support body cantilevered on the first left limit adjustment bracket support frame, and a first left limit adjustment bracket side pressure rotation cylinder provided on the edge of the first left limit adjustment bracket support frame. The section bracket pressure measuring rotary cylinder is equipped with a first left limit adjustment bracket side pressure head, the first tooling base plate is equipped with a first left limit adjustment bracket lower pressure seat, the first left limit adjustment bracket lower pressure seat is equipped with a first left limit adjustment bracket lower pressure rotary cylinder, the first left limit adjustment bracket lower pressure rotary cylinder is equipped with a first left limit adjustment bracket lower pressure head, the first left limit adjustment bracket lower pressure seat is equipped with a lower top block in the middle front of the left inclined section of the automotive radiator frame assembly, and the first left limit adjustment bracket lower pressure rotary cylinder is equipped with an upper pressure block in the middle front of the left inclined section of the automotive radiator frame assembly that cooperates with the lower top block in the middle front of the left inclined section of the automotive radiator frame assembly.

[0035] The welding system provided by this invention includes a fixing assembly for the left-side inclined section of the automotive radiator frame assembly, comprising: a left fixing seat for the left-side inclined section of the automotive radiator frame assembly; a left upright plate of the left-side inclined section of the automotive radiator frame assembly disposed on the left fixing seat; a left guide rail assembly of the left-side inclined section of the automotive radiator frame assembly disposed on the left fixing seat; and a component mounted on the automotive radiator frame via a slider. The left guide rail assembly of the left inclined section water tank frame support reinforcement of the automotive water tank frame assembly includes a left guide slide of the left inclined section water tank frame support reinforcement of the automotive water tank frame assembly and a left pulling cylinder of the left inclined section water tank frame support reinforcement of the automotive water tank frame assembly, which is set on the left upright plate of the left inclined section water tank frame support reinforcement of the automotive water tank frame assembly. The left pulling cylinder of the left inclined section water tank frame support reinforcement of the automotive water tank frame assembly is connected to the left guide slide of the left inclined section water tank frame support reinforcement of the automotive water tank frame assembly through the left cylinder fixing block of the left inclined section water tank frame support reinforcement of the automotive water tank frame assembly.

[0036] The upper part of the left vertical plate of the left-side inclined section of the automotive radiator frame assembly has symmetrically arranged L-shaped static fixing arms for the side wings of the left-side inclined section of the automotive radiator frame assembly. The left guide slide of the left-side inclined section of the automotive radiator frame assembly has dynamic fixing arms for the side wings of the left-side inclined section of the automotive radiator frame assembly that cooperate with the static fixing arms. A fixing mechanism is provided between the dynamic fixing arms of the left-side inclined section of the automotive radiator frame assembly. The left guide slide of the left inclined section of the radiator frame support reinforcement in the automotive radiator frame assembly has a rear positioning head for the left inclined section of the radiator frame support reinforcement, which is provided with a hole for the rear positioning head of the left inclined section of the radiator frame support reinforcement that mates with the left inclined section of the radiator frame support reinforcement. The left guide slide of the left inclined section of the radiator frame support reinforcement in the automotive radiator frame assembly has a rear fixing top block for the left inclined section of the radiator frame support reinforcement.

[0037] The welding system provided by this invention includes a left steering section fixing assembly for an automotive radiator frame assembly, comprising:

[0038] The left steering section fixing base of the automotive water tank frame assembly is set on the first tooling base plate;

[0039] The lower top block of the left steering section of the automotive radiator frame assembly is installed on the fixed base of the left steering section of the automotive radiator frame assembly.

[0040] The rotating clamping cylinder for the left steering part of the automotive radiator frame assembly is provided on the fixed base of the left steering part of the automotive radiator frame assembly, and is provided with an upper pressure head for the left steering part of the automotive radiator frame assembly that cooperates with the lower top block of the left steering part of the automotive radiator frame assembly.

[0041] The left steering section mounting base of the automotive radiator frame assembly is equipped with a suspension lug positioning bracket for the left steering section of the automotive radiator frame assembly.

[0042] The welding system provided by this invention includes a front sidewall clamping structure for the intermediate straight section clamping assembly of the automotive radiator frame assembly welding fixture, comprising:

[0043] The lower base is pressed against the front side wall of the straight section of the automotive water tank frame assembly, which is located on the first tooling base plate.

[0044] The first guide rail assembly is installed on the front side wall of the middle straight section of the automotive water tank frame assembly, pressing against the lower base.

[0045] The first cylinder assembly is mounted on the front side wall of the middle straight section of the automotive water tank frame assembly and pressed against the lower base. It is connected to the first slide table mounted on the first guide rail assembly via the first adapter block.

[0046] The first L-shaped front pressure plate, located on the first slide, is provided with a front side wall rear surface that mates with the rear surface of the front side wall of the middle straight section of the automotive water tank frame assembly to press the fingers.

[0047] The front side wall of the straight section of the portal-type automotive water tank frame assembly, which is set on the base plate of the first tooling, is pressed against the upper base.

[0048] The second guide rail assembly is installed on the front side wall of the middle straight section of the portal-type automotive water tank frame assembly, pressing against the upper base;

[0049] The cylinder assembly is located on the front side wall of the straight section in the middle of the portal-type automotive water tank frame assembly, pressing against the upper base, and is connected to the second slide table installed on the second guide rail assembly.

[0050] The second L-shaped front pressure plate, located on the second slide, is provided with a front side wall front surface pressing finger that mates with the rear surface of the front side wall of the middle straight section of the automotive radiator frame assembly. The front side wall front surface pressing finger is provided with a middle straight section suspension ear pressing finger that presses the left and right suspension ears of the middle straight section of the automotive radiator frame assembly.

[0051] The rear sidewall clamping structure of the intermediate straight section clamping assembly of the automotive radiator frame assembly welding fixture includes:

[0052] The lower flange pressing base of the rear side wall of the middle straight section of the automotive radiator frame assembly is set on the first tooling base plate, and is provided with a back pressing finger of the lower flange of the rear side wall of the middle straight section of the automotive radiator frame assembly that matches the back of the lower flange of the rear side wall of the middle straight section of the automotive radiator frame assembly.

[0053] The automotive radiator frame assembly middle straight section rear side wall lower flange rotary clamping cylinder fixing seat is set on the first tooling base plate. It is equipped with the automotive radiator frame assembly middle straight section rear side wall lower flange rotary clamping cylinder. The automotive radiator frame assembly middle straight section rear side wall lower flange rotary clamping cylinder is equipped with the automotive radiator frame assembly middle straight section rear side wall lower flange surface clamping finger.

[0054] As can be seen from the above, the flexible tooling fixing structure of this system, combined with the workstation, can efficiently and safely complete the welding work of the automotive radiator frame assembly. Attached Figure Description

[0055] Figure 1 This is a perspective view of the front side of the flexible laser welding workstation in Embodiment 1 of the present invention, with some structures omitted.

[0056] Figure 2 This is a perspective view of the rear side of the flexible laser welding workstation in Embodiment 1 of the present invention, with some structures omitted.

[0057] Figure 3 This is a schematic diagram of the left side of the flexible laser welding workstation in Embodiment 1 of the present invention.

[0058] Figure 4 This is a schematic diagram of the right side of the flexible laser welding workstation in Embodiment 1 of the present invention.

[0059] Figure 5 This is a schematic diagram of the top of the flexible laser welding workstation in Embodiment 1 of the present invention.

[0060] Figure 6 This is a schematic diagram of the internal layout of the shielded room structure of the flexible laser welding workstation in Embodiment 1 of the present invention.

[0061] Figure 7 This is a partial enlarged view of the positioning buffer device in the first shielding room in Embodiment 1 of the present invention.

[0062] Figure 8 This is a schematic diagram of the positioning buffer device in one embodiment.

[0063] Figure 9 This is a schematic diagram of the docking block of the positioning buffer device in one embodiment.

[0064] Figure 10 This is a partial enlarged view of the first welding robot in the first shielding room in Embodiment 1 of the present invention (dustproof baffle omitted).

[0065] Figure 11 This is a partial enlarged view of the second welding robot in the second shielding room in Embodiment 1 of the present invention (dustproof baffle is not omitted).

[0066] Figure 12 This is a perspective view of the welding fixture for the automotive water tank frame assembly installed by the positioner in Embodiment 2 of the present invention.

[0067] Figure 13 This is a partial enlarged view of the first left front support fixing bracket of the welding fixture for the automotive water tank frame assembly in Embodiment 2 of the present invention.

[0068] Figure 14 This is a partial enlargement of the fixing structure of the first left limit adjustment bracket of the welding fixture for the automotive radiator frame assembly in Embodiment 2 of the present invention. Figure 1 .

[0069] Figure 15 This is a partial enlargement of the fixing structure of the first left limit adjustment bracket of the welding fixture for the automotive radiator frame assembly in Embodiment 2 of the present invention. Figure 2 .

[0070] Figure 16 This is a side view of the first left limit adjustment bracket fixing structure of the welding fixture for the automotive water tank frame assembly in Embodiment 2 of the present invention.

[0071] Figure 17 This is a diagram showing the effect of omitting the first left limit adjustment bracket fixing structure at the first left limit adjustment bracket fixing structure of the automotive water tank frame assembly welding fixture in Embodiment 2 of the present invention.

[0072] Figure 18 This is an enlarged view of the first left limit adjustment bracket pressing component of the welding fixture for the automotive water tank frame assembly in Embodiment 2 of the present invention.

[0073] Figure 19 This is an enlarged view of the lower support component of the left front automotive radiator frame assembly in Embodiment 2 of the present invention.

[0074] Figure 20 This is a partial detailed view of the lower support component of the left front automotive radiator frame assembly in Embodiment 2 of the present invention.

[0075] Figure 21 This is a partial enlarged view of the fixing component of the left oblique section of the water tank frame support reinforcement of the automotive water tank frame assembly in Embodiment 2 of the present invention.

[0076] Figure 22 This is a partial detailed view of the fixing component of the left oblique section of the water tank frame support reinforcement of the automotive water tank frame assembly in Embodiment 2 of the present invention.

[0077] Figure 23This is a diagram illustrating the fit between the water tank frame support reinforcement on the left oblique section of the automotive water tank frame assembly and the outer wall of the left oblique section of the automotive water tank frame assembly in Embodiment 2 of the present invention.

[0078] Figure 24 This is a diagram illustrating the fit between the water tank frame support reinforcement on the left oblique section of the automotive water tank frame assembly and the inner sidewall of the left oblique section in Embodiment 2 of the present invention.

[0079] Figure 25 This is a perspective view of the fixing component of the left oblique section of the water tank frame support reinforcement of the automotive water tank frame assembly in Embodiment 2 of the present invention.

[0080] Figure 26 This is a partial enlarged view of the rear positioning structure of the left oblique section of the water tank frame support reinforcement fixing assembly of the automotive water tank frame assembly welding fixture in Embodiment 2 of the present invention.

[0081] Figure 27 This is a partial enlarged view of the left steering section fixing component of the automotive radiator frame assembly in Embodiment 2 of the present invention.

[0082] Figure 28 This is a perspective view of the front side wall clamping structure of the middle straight section clamping assembly of the automotive water tank frame assembly welding fixture in Embodiment 2 of the present invention.

[0083] Figure 29 This is a perspective view of the rear side wall clamping structure of the middle straight section clamping assembly of the automotive water tank frame assembly welding fixture in Embodiment 2 of the present invention.

[0084] Figure 30 This is an enlarged view of the middle straight section clamping assembly of the automotive water tank frame assembly welding fixture in Embodiment 2 of the present invention, located at the bottom of the first fixture base plate.

[0085] Figure 31 This is a partial detailed view of the first slide in the front side wall clamping structure of the middle straight section clamping assembly of the automotive water tank frame assembly welding fixture in Embodiment 2 of the present invention.

[0086] Figure 32 This is a partial detailed view of the rear side wall clamping base of the middle straight section of the automotive radiator frame assembly in the rear side wall clamping structure of the middle straight section clamping assembly of the welding fixture for the automotive radiator frame assembly in Embodiment 2 of the present invention.

[0087] Figure 33 This is a partial enlarged view of the right side of the welding fixture for the automotive water tank frame assembly in Embodiment 2 of the present invention.

[0088] Figure 34 This is a partial cross-sectional view of the visual micro-travel detection device in Embodiment 3 of the present invention.

[0089] Figure 35 This is a diagram of the cylindrical structure in Embodiment 4 of the present invention. Detailed Implementation

[0090] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific embodiments.

[0091] Example 1: An embodiment of the present invention provides a flexible laser welding workstation, see [link to example]. Figure 1-2 The flexible laser welding workstation comprises a row of room-like structures. This integrated design facilitates modular transportation and other operational needs, while also providing greater flexibility in adapting to different installation sites. The overall size of the structure also makes it suitable for container transport. A staircase structure 1 connects to a second-floor platform in the middle of the structure. A protective railing 6 is installed on the second-floor platform and can be detachably installed to the top of the structure using bolts or other methods. A first shielding room 2 and a second shielding room 3 are symmetrically arranged along the staircase structure. The first shielding room has a first front wall panel 2a, a first rear wall panel 2b, a first left wall panel 2c, and a first right wall panel 2d. Similarly, the second shielding room is equipped with a first front wall panel 3a, a second rear wall panel 3b, a second left wall panel 3c, and a second right wall panel 3d. Considering the structural stability and lightweight of the room structure, the walls are constructed using a frame structure, and plastic or metal panels are fixed on the frame structure. The room structure can use an integrated floor slab, or the floor slabs can be added or removed according to the needs of the workshop.

[0092] See Figure 3-4 As shown, the first left wall panel of the first shielding room has a left side door 4, which is a double door. The right wall panel of the second shielding room has a right side door 5, which is also a double door. Both side doors are equipped with observation windows.

[0093] See Figure 5 The roofs of the first and second shielded rooms are equipped with eight ventilation holes (31). Since the robots operate within the room structure, the relatively enclosed space is not conducive to robot heat dissipation. Therefore, by installing corresponding exhaust fans and other components in the ventilation holes, the internal cooling and ventilation requirements can be effectively met. For safety reasons, grid mesh is installed on the circular ventilation holes to prevent foreign objects from falling into the room structure and to prevent live animals from entering. It is worth mentioning that the roof of the room structure can be constructed using flat panels to create a platform for people to walk on.

[0094] See also Figure 1 and Figure 2The first shielding room 2 has a front door 7 and a front door 8 on its front wall. The rear wall of the first shielding room has a rear door 9 symmetrical to the front door 1 and a rear door 10 symmetrical to the front door 3. Workstations 23 and 24 are symmetrically located at front door 7 and rear door 9. Workstation 1 has a positioner 15, and workstation 2 has a positioner 16. Workstations 25 and 26 are symmetrically located at front door 8 and rear door 10. Workstation 3 has a positioner 17, and workstation 4 has a positioner 18. This symmetrical design is beneficial for the welding robot's welding operations. The door frames can be pre-formed during the construction of the room's structure. The second shielding room 3 has a front door 11 and a front door 7 on its front wall. The rear wall of the second shielding room has a front door 9 symmetrical to the front door 7 and a rear door 10. The front door is symmetrically located at rear door 6 (13), and rear door 8 (14) is symmetrically located at front door 7. Workstations 5 (27) and 6 (28) are symmetrically located at front door 5 (11) and rear door 6 (13). Workstation 5 is equipped with positioner 5 (19), and workstation 6 is equipped with positioner 6 (20). Workstations 7 (29) and 8 (30) are symmetrically located at front door 7 and rear door 8. Workstation 7 (21) and workstation 8 (22) are equipped with positioner 7 (21), and workstation 8 (22). The front door 1, rear door 2, rear door 3, and rear door 4 of the first shielded room, and the front door 5, front door 7, rear door 6, and rear door 8 of the second shielded room are equipped with lifting safety doors connected to the control module. This design allows the doors to be opened or closed as needed for work, effectively providing safety protection and avoiding potential injury risks to auxiliary operators during laser welding.

[0095] See Figure 6The first shielding room has a first bidirectional guide rail seat 32 located in the center, distributed along the length of the first shielding room. This design cleverly utilizes the spatial layout of the room structure to improve space utilization efficiency. The first bidirectional guide rail seat 32 is equipped with a first bidirectional guide rail 36 and a first guide rack 38 parallel to the first bidirectional guide rail. The length of the first guide rack is approximately the same as the length of the first bidirectional guide rail. A first slide table 39 is mounted on the first bidirectional guide rail via a slider. The first slide table is equipped with a first driving device that cooperates with the first guide rack. The first driving device includes, but is not limited to, a motor driving device. A first welding robot 40 is mounted on the first slide table. The robot is equipped with a laser welding device (laser welding device is existing technology). A first limit switch 42 is mounted on the first slide table. The first driving device, the first limit switch, and the first welding robot are connected to the control module. The second shielding room is also centrally located with a second bidirectional guide rail seat 34 distributed along the length of the second shielding room. The second bidirectional guide rail seat 34 is equipped with a second bidirectional guide rail 37 and a second guide rack parallel to the second bidirectional guide rail. The second bidirectional guide rail is mounted with a second slide table via a slider. The second slide table is equipped with a second drive device that cooperates with the second guide rack. The second slide table is equipped with a second welding robot 41. The robot is equipped with a laser welding device (the laser welding device is existing technology). The second slide table is equipped with a second limit switch 43. The second drive device, the second limit switch, and the second welding robot are connected to the control module.

[0096] See Figure 7 The first and second bidirectional guide rail seats are equipped with positioning base pads 33 at their bottoms. Each positioning base pad includes a circular block, an adjusting screw, and an adjusting nut. Mounting lugs that mate with the positioning base pads are provided on the guide rail seats, and these lugs have threaded holes. Positioning buffer devices 35 are provided at the ends of both the first and second bidirectional guide rails. These devices effectively prevent the laser welding robot from derailing during its back-and-forth movement. The buffer devices cushion the moving platform on which the robot is located, preventing rigid collisions to the robot's bottom that could damage its internal precision-fitting structure.

[0097] See also Figure 7 The positioning buffer device 35 adopts a symmetrical bidirectional seat head structure. Not only is the internal structure of a single positioning buffer device symmetrically distributed, but the left and right ends of the first bidirectional guide rail are also symmetrically distributed, as are the left and right ends of the second bidirectional guide rail. This symmetrical bidirectional seat head structure has symmetrically distributed triangular seats 35a, which have a strong recoil resistance effect. A connecting bracket 35b is provided between the parallel triangular seats, and a limiting buffer block 35d with a flat impact surface is provided on the top of the triangular seats through a docking block 35c.

[0098] As one example, see Figure 8-9 Flexible limiting buffer blocks are prone to fatigue during long-term use, necessitating replacement. In this case, a suspension axle 35c-1 is vertically mounted on the adapter block, and a metal cross 35c-2 is installed on the suspension axle. The limiting buffer block has a cross-shaped mating hole 35d-1. The diameter of the cross-shaped mating hole is smaller than the outer diameter of the cross, facilitating the insertion of the cross into the slides arranged along the edge of the cross-shaped mating hole. The sidewall of the cross-shaped mating hole has four C-shaped slides arranged in a circular array. The entrance positions of these C-shaped slides allow each end of the cross to be inserted into the slide entrance 35d-2. A magnet 35d-3 is installed at the end of each C-shaped slide, which attracts the metal cross end, keeping the limiting buffer block in a stable position. Figure 8 The installation status shown is as follows. Figure 8 The direction of the middle arrow indicates the direction in which the cross is inserted into the C-shaped slide to fix the limiting buffer block. To replace the limiting buffer block, the rotation direction is reversed. This structural design is beneficial for replacing the limiting buffer block even if it is damaged by stress.

[0099] A second embodiment of the present invention provides a welding system for an automotive radiator frame assembly, see below. Figure 12 The automotive radiator frame assembly P includes a left-side inclined section P1, a right-side inclined section P2, and a central straight section P3 located between the left and right-side inclined sections. The left-side inclined section P1, the right-side inclined section P2, and the central straight section P3 form a C-shaped structure. The automotive radiator frame assembly P is generally U-shaped in cross-section, and the U-shaped assembly P has a horizontally arranged main plate P-1 (here...). Figure 12 The U-shaped automotive radiator frame assembly is in an inverted state, so the U-shaped groove is not visible. It is distributed on the outer side wall P-2 (also known as the front side wall) of the main board and the inner side wall P-3 (also known as the rear side wall) of the main board. The U-shaped structure is formed by the main board, the inner side wall, and the outer side wall. In this embodiment, the welding system includes the flexible laser welding workstation provided in the first embodiment and the automotive radiator frame assembly welding fixture 44 which is detachably installed at the positioner (some or all of the positioner can be used).

[0100] See Figure 12-33The welding fixture for the automotive radiator frame assembly includes: a first fixture base plate 44-1, a positioner docking mechanism 44-2, a first left front support fixing bracket 44-3, a first left limit adjustment bracket fixing structure 44-4, a special-shaped first left front surface mount limit adjustment bracket fixing structure 44-5, a lower support assembly for the left front automotive radiator frame assembly 44-6, a fixing assembly for the left oblique section radiator frame support reinforcement of the automotive radiator frame assembly 44-7, a fixing assembly for the left steering part of the automotive radiator frame assembly 44-8, a pressing assembly for the middle straight section of the automotive radiator frame assembly 44-9, a fixing assembly for the right steering part of the automotive radiator frame assembly 44-10, a fixing assembly for the right oblique section radiator frame support reinforcement of the automotive radiator frame assembly 44-11, a first right front support fixing bracket 44-12, a fixing structure for the first right front wall side mount suspension lug 44-13, and a lower support assembly for the right front automotive radiator frame assembly 44-14.

[0101] See also Figure 12 The first tooling base plate 44-1, installed on the positioner, is generally rectangular. Both ends of the first tooling base plate 44-1 are equipped with positioner docking mechanisms 44-2 that mate with the positioner, allowing for installation, for example, by bolts. The first left front support bracket 44-3, located near the left rear of the first tooling base plate, is shown in the image. Figure 13-14 The first left front support bracket 44-3 includes a first left front top block 44-3b (used to abut against the lower surface of the left front end of the automotive radiator frame assembly P), a first U-shaped positioning fastener 44-3a with a guiding mechanism, and a first left front positioning post 44-3c for positioning the opening at the left front of the automotive radiator frame assembly. The guiding mechanism here is a variable-width inlet with the top of the first U-shaped positioning fastener being relatively set and the width gradually decreasing from top to bottom. The front end of the automotive radiator frame assembly is quickly guided into the first U-shaped positioning fastener for installation and fixation through the relative inclined surfaces of the first U-shaped positioning fastener. The width of the lower slot of the first U-shaped positioning fastener is adapted to the width of the front end of the automotive radiator frame assembly.

[0102] See Figure 14 The figure shows a first left limit adjustment bracket X1, which is welded and fixed to the automotive radiator frame assembly. A first left limit adjustment bracket fixing structure 44-4 is located on the first tooling base plate. The first left limit adjustment bracket is welded and fixed to the automotive radiator frame assembly P using a welding device. Specifically, see [link to figure]. Figure 14-18As shown, the first left limit adjustment bracket fixing structure 44-4 in the welding system provided by the present invention includes a first left limit adjustment bracket support frame 44-4a. The first left limit adjustment bracket support frame 44-4a is composed of an L-shaped frame and a triangular support rib. The first left limit adjustment bracket support frame 44-4a is provided with a first left limit adjustment bracket positioning cylinder seat 44-4d. The first left limit adjustment bracket positioning cylinder seat 44-4d is provided with a first left limit adjustment bracket positioning cylinder 44-4b. The first left limit adjustment bracket positioning cylinder 44-4b is equipped with a first left limit adjustment bracket positioning column 44-4c. The first left limit adjustment bracket support frame 44-4a is cantilevered with a cylindrical first left limit adjustment bracket lower support body 4. 4-4e, the inner cylinder of the lower support of the cylindrical first left limit adjustment bracket allows the positioning column of the first left limit adjustment bracket to move freely up and down. The edge of the first left limit adjustment bracket support frame 44-4a is equipped with a first left limit adjustment bracket side-pressure rotary cylinder 44-4f. The first left limit adjustment bracket pressure-measuring rotary cylinder is fitted with a first left limit adjustment bracket side-pressure head 44-4g. A first left limit adjustment bracket side-pressure rotary cylinder seat 44-4h is provided on the first tooling base plate. The first left limit adjustment bracket side-pressure rotary cylinder 44-4f is fixed on the first left limit adjustment bracket side-pressure rotary cylinder seat 44-4h, and the first left limit adjustment bracket side-pressure rotary cylinder 44-4f is equipped with a first left limit adjustment bracket side-pressure head cantilever 4. 4-4i, the first left limit adjustment bracket side pressure head 44-4g is fixed on the first left limit adjustment bracket side pressure head cantilever 44-4i. There are two first left limit adjustment bracket side pressure heads 44-4g, which press the two side edges of the first left limit adjustment bracket respectively. The first tooling base plate is provided with a first left limit adjustment bracket side pressure head cantilever limit block 44-4j that cooperates with the first left limit adjustment bracket side pressure head cantilever 44-4i to prevent the first left limit adjustment bracket side pressure rotary cylinder 44-4f from overtravel and damaging the parts. The first tooling base plate is provided with a first left limit adjustment bracket lower pressure seat 44-4k. The first left limit adjustment bracket lower pressure seat 44-4k is generally an L-shaped metal structure. 4-4k is equipped with a first left limit adjustment bracket pressing rotary cylinder 44-4l. The first left limit adjustment bracket pressing rotary cylinder is equipped with a first left limit adjustment bracket pressing head 44-4m. The front end of the first left limit adjustment bracket pressing head has a horizontal U-shaped presser that cooperates with the cylindrical first left limit adjustment bracket lower support body. This can press down the first left limit adjustment bracket while facilitating the passage of the corresponding positioning post. A first left limit adjustment bracket pressing cantilever 44-4p can be added between the first left limit adjustment bracket pressing head 44-4m and the first left limit adjustment bracket pressing rotary cylinder 44-4l. The first left limit adjustment bracket pressing seat 44-4k is equipped with a front lower top block 44-4n in the left oblique section of the automotive radiator frame assembly.The first left limit adjustment bracket downward rotary cylinder 44-4l is equipped with an upper pressure block 44-4o in the front middle part of the left inclined section of the automotive radiator frame assembly, which mates with the lower top block 44-4n in the front middle part of the left inclined section of the automotive radiator frame assembly. For example, the upper pressure block 44-4o in the front middle part of the left inclined section of the automotive radiator frame assembly is installed onto the lower cantilever 44-4p of the first left limit adjustment bracket.

[0103] See Figure 18 The figure shows the first left front instrument panel mounting limit adjustment bracket X2, which is welded to the automotive radiator frame assembly. The irregularly shaped first left front instrument panel mounting limit adjustment bracket X2 fixing structure 44-5, which is suspended and mounted on the lower pressure seat of the first left limit adjustment bracket, has horizontally distributed L-shaped lower cantilever 44-5a, L-shaped upper cantilever 44-5b mounted on the lower cantilever, and a connector 44-5c mounted on the upper cantilever. Figure 18 The docking device 44-5c can hold the first left front surface mount limit adjustment bracket X2. Alternatively, the docking device 44-5c can be equipped with a sensor to detect whether the first left front surface mount limit adjustment bracket X is in place. Unless otherwise specified, the signals of the relevant sensors in this embodiment are transmitted to the control module (control device).

[0104] See Figures 19-20 The left front radiator frame assembly lower support component 44-6, which is located at the edge of the lower pressure seat of the first left limit adjustment bracket, has a left front radiator frame assembly lower support seat 44-6a, a left front radiator frame assembly lower support lifting cylinder 44-6b located on the left front radiator frame assembly lower support seat, and a left front radiator frame assembly lower support block 44-6c located on the left front radiator frame assembly lower support lifting cylinder. The left front radiator frame assembly lower support lifting cylinder 44-6b rises, causing the left front radiator frame assembly lower support block 44-6c to press against the lower surface of the radiator frame assembly.

[0105] See Figure 21 The diagram shows the left-side inclined section radiator frame support reinforcement X3 of the automotive radiator frame assembly. This structural component also needs to be welded on this fixture. Since the welding is completed remotely via laser non-contact welding, the obstruction does not affect the welding operation. For the detailed structure of the fixing assembly 44-7 of the left-side inclined section radiator frame support reinforcement X3 of the automotive radiator frame assembly, which is mounted on the base plate of the first fixture, please refer to... Figure 22-26The left-side inclined section radiator frame support reinforcement fixing assembly 44-7 of the automotive radiator frame assembly includes a left fixing seat 44-7a for the left-side inclined section radiator frame support reinforcement, a left upright plate 44-7b of the left-side inclined section radiator frame support reinforcement disposed on the left fixing seat 44-7a, a left guide rail assembly 44-7c of the left-side inclined section radiator frame support reinforcement, and a component mounted on the left-side inclined section radiator frame via a slider. The left guide slide 44-7d of the left inclined section of the automotive radiator frame assembly is supported by the left guide rail assembly 44-7c. The left pull cylinder 44-7e of the left inclined section of the automotive radiator frame assembly is located on the left upright plate 44-7b of the left inclined section of the automotive radiator frame assembly. The left pull cylinder 44-7e of the left inclined section of the automotive radiator frame assembly is connected to the left guide slide 44-7d of the left inclined section of the automotive radiator frame assembly through the left cylinder fixing block 44-7f of the left inclined section of the automotive radiator frame assembly.The upper part of the left vertical plate 44-7b of the left-side inclined section of the automotive radiator frame assembly is symmetrically provided with L-shaped side wing static fixing arms 44-7g of the left-side inclined section of the automotive radiator frame assembly. The left guide slide 44-7d of the left-side inclined section of the automotive radiator frame assembly is provided with a left-side inclined section of the automotive radiator frame assembly that cooperates with the side wing static fixing arms 44-7g of the left-side inclined section of the automotive radiator frame assembly. The dynamic fixing arm 44-7h on the side wings of the radiator frame support reinforcement can fix the two thinner side wings of the left oblique section of the radiator frame support reinforcement in conjunction with the static fixing arm. The dynamic fixing arm can move with the cylinder. Between the dynamic fixing arms 44-7h on the side wings of the left oblique section of the radiator frame support reinforcement, there is a radiator frame assembly fixed to the left guide slide 44-7d of the left oblique section of the radiator frame support reinforcement. The left-side inclined section of the radiator frame support reinforcement has a rear positioning head 44-7i. This rear positioning head 44-7i is equipped with a hole 44-7i-1 that mates with the left-side inclined section of the radiator frame support reinforcement. The left guide slide 44-7d of the left-side inclined section of the radiator frame support reinforcement is equipped with a hole 44-7i-1. The rear fixed top block 44-7j of the segment water tank frame support reinforcement, the rear fixed top block 44-7j of the left oblique segment water tank frame support reinforcement of the automotive water tank frame assembly, and the dynamic fixing arm 44-7h of the side wing of the left oblique segment water tank frame support reinforcement of the automotive water tank frame assembly can be installed on the L-shaped seat 44-7k on the left guide slide 44-7d of the left oblique segment water tank frame support reinforcement of the automotive water tank frame assembly.

[0106] See Figure 27The left steering section fixing component 44-8 of the automotive radiator frame assembly, mounted on the first tooling base plate, includes a left steering section fixing base 44-8a, a left steering section lower top block 44-8b, a left steering section rotary clamping cylinder 44-8c, a left steering section upper pressure head 44-8d, and a left steering section suspension lug positioning bracket 44-8e. The left steering section fixing base 44-8a, mounted on the first tooling base plate, is constructed using a bracket. The left steering section lower top block 44-8b, mounted on the left steering section fixing base, can be an L-shaped block, which can be driven to move upward by a lifting cylinder. The rotary clamping cylinder 44-8c of the left steering section of the automotive radiator frame assembly, located on the fixing base of the left steering section of the automotive radiator frame assembly, is equipped with an upper pressure head 44-8d of the left steering section of the automotive radiator frame assembly that mates with the lower top block 44-8b of the left steering section of the automotive radiator frame assembly. The clamping and loosening of the parts are completed by the opening and closing action of the upper pressure head driven by the rotary cylinder. The fixing base of the left steering section of the automotive radiator frame assembly is equipped with a positioning bracket 44-8e for the left steering lug X4 of the automotive radiator frame assembly. For example, positioning bolts are used to fix the left steering lug X4 of the automotive radiator frame assembly, which facilitates subsequent welding operations.

[0107] See Figure 28 The automotive radiator frame assembly intermediate straight section clamping assembly 44-9, which is installed on the first tooling base plate, clamps the intermediate straight section of the automotive radiator frame assembly. For detailed structure, please refer to [link / reference needed]. Figure 28-32The front wall clamping structure of the intermediate straight section clamping assembly 44-9 of the automotive radiator frame assembly welding fixture includes a lower base 44-9a for clamping the front wall of the intermediate straight section of the automotive radiator frame assembly, which is set on the base plate of the first fixture. The lower base 44-9a is fixed to the base plate of the first fixture by bolts. There are two lower bases 44-9a. The first guide rail assembly 44-9b is provided on the lower base 44-9a and has two rails distributed on each lower base 44-9a to improve the flexibility and reliability of the operation. The first cylinder assembly 44-9c, which is mounted on the front side wall of the straight section of the automotive radiator frame assembly, saves space by being hidden at the bottom of the first tooling base plate. The first cylinder assembly 44-9c is connected to the first slide 44-9d mounted on the first guide rail assembly via the first adapter block 44-9e. It slides by being driven by the first cylinder. The first L-shaped front pressure plate 44-9e, which is set on the first slide, is provided with a front side wall rear surface pressing finger 44-9f that cooperates with the rear surface of the front side wall of the straight section of the automotive radiator frame assembly (i.e., the side facing the U-shaped groove of the automotive radiator frame assembly). Two upper bases 44-9g, each mounted on the first tooling base plate, are provided for pressing the front side wall of the straight section of the portal radiator frame assembly. Similarly, two second guide rail assemblies 44-9h, mounted on the upper bases 44-9g, are provided for each single upper base 44-9g to improve the reliability of movement. The cylinder assembly 44-9i, mounted on the upper bases 44-9g, is connected to the second slide 44-9j mounted on the second guide rail assembly. The second L-shaped front pressure plate 44-9k mounted on the second slide is positioned to contact the rear surface of the front side wall of the straight section of the portal radiator frame assembly (i.e.,...) Figure 31The front sidewall front surface pressing fingers 44-9l (facing the observer's side) are equipped with middle straight section suspension ear pressing fingers that press the left suspension ear X5 and the right suspension ear X6 of the middle straight section of the car radiator frame assembly. The front sidewall front surface pressing fingers 44-9l and the rear sidewall front surface pressing fingers 44-9f can press the front sidewall of the middle straight section of the car radiator frame assembly. Additionally, the rear sidewall clamping structure of the intermediate straight section clamping assembly 44-9 of the automotive radiator frame assembly welding fixture includes a clamping base 44-9m for the lower flange (the lower flange is obliquely distributed on the lower edge of the rear sidewall) of the intermediate straight section of the automotive radiator frame assembly, which is disposed on the base plate of the first fixture. The clamping base 44-9m for the lower flange of the rear sidewall of the intermediate straight section of the automotive radiator frame assembly is provided with a clamping base 44-9m for the rear sidewall of the intermediate straight section of the automotive radiator frame assembly that matches the back side of the lower flange of the rear sidewall of the intermediate straight section of the automotive radiator frame assembly. The lower flange back pressure finger 44-9n has a certain lifting effect. The lower flange rotary pressing cylinder fixing seat 44-9o of the middle straight section of the automotive radiator frame assembly is installed on the first tooling base plate. The lower flange rotary pressing cylinder 44-9p of the middle straight section of the automotive radiator frame assembly is installed on the lower flange surface pressing finger 44-9q of the lower flange surface of the middle straight section of the automotive radiator frame assembly. It is worth mentioning that the middle straight section of the automotive radiator frame assembly can be equipped with an upper pressing component and a lower pushing component. The upper pressing component includes an upper pressing rotary cylinder 44-9r, on which an upper pressing block 44-9s is installed. The lower pushing component includes a lower pushing cylinder 44-9t installed on the first tooling base plate, on which an upper pushing block is installed to fit the lower surface of the main board of the middle straight section of the automotive radiator frame assembly.

[0108] See Figure 33 The welding system of this embodiment also includes a right steering section fixing assembly 44-10 of the automotive radiator frame assembly mounted on the first tooling base plate, a right oblique section radiator frame support reinforcement X8 fixing assembly 44-11 of the automotive radiator frame assembly mounted on the first tooling base plate, a first right front support fixing bracket 44-12 of the first tooling base plate, a first right front wall side mounting lug fixing structure 44-13 of the first tooling base plate, and a right front automotive radiator frame assembly lower support assembly 44-14 of the right front side mounting lug lower pressure seat mounted on the edge of the first right front wall side mounting lug. Figure 33The following components are provided: right steering lug X7 of the automotive radiator frame assembly, right oblique section radiator frame support reinforcement X8 of the automotive radiator frame assembly, and first right front wall side-mounted lug X9. It should be noted that the automotive radiator frame assembly is generally a bilaterally symmetrical structure. Therefore, the relevant fixing components on the right side of the automotive radiator frame assembly have the same structure as those on the left side. The structure of the right steering section fixing component 44-10 can be referenced to the left steering section fixing component 44-8. Similarly, the structure of the right oblique section radiator frame support reinforcement component X8 fixing component 44-11 can be referenced to the left oblique section radiator frame support reinforcement component X3 fixing component 44-7. The structure of the first right front support fixing bracket can be referenced to the first left front support fixing bracket 44-3. The structure of the first right front wall side-mounted suspension lug X9 fixing structure 44-13 can be referenced to the first left limit adjustment bracket X1 fixing structure 44-4. The structure of the right front automotive radiator frame lower support component 44-14 can be referenced to the left front automotive radiator frame lower support component 44-6. Figure 18 The first left front instrument panel limit adjustment bracket X2 is not symmetrically distributed on the right side of the car radiator frame assembly, so there is no corresponding fixing structure.

[0109] It should be noted that in this embodiment, all cylinders are connected to the control module, and the corresponding parts on the tooling require manual assembly to weld the sub-parts of the automotive radiator frame assembly according to... Figure 12 Once the object is positioned as shown, the welding robot performs the welding action according to the requirements.

[0110] To improve the level of intelligence, sensing devices for the parts or their fixed structures can be installed to connect to the control module and promptly determine whether different parts are in place.

[0111] For example, the robot selected is the KUKA KR90 R2900 model (the fiber laser installed in the laser welding equipment of the robot is the IPG YLS-4000, and the remote galvanometer welding head is the HIGHYAG RLSK).

[0112] Example 3: This example is an improvement on Example 1. Because the docking block is fixed with a corresponding buffer device, repeated collisions during long-term operation can cause it to directly impact the moving structure if the flexible buffer material fails prematurely. This small displacement can easily cause accidents to the working units on the guide rail. To address this, the inventors have developed a more cost-effective and safer solution by installing a visual micro-travel detection device at the docking block location. Specifically, taking the first bidirectional guide rail seat of the first shielded room as an example, see... Figure 34The docking block 35c is equipped with a spike 45a via a cantilever. The front end of the spike is a structure that can pierce the diaphragm. The first bidirectional guide rail seat is equipped with a horizontal hollow cylinder 45b via a bracket. For example, an internal threaded hole can be provided at the left bottom shell (thickened) of the horizontal hollow cylinder, and the bracket for mounting the horizontal hollow cylinder is equipped with an external threaded rod to cooperate with it. This structure can facilitate the replacement of the horizontal hollow cylinder and can also finely adjust the distance between the diaphragm and the spike inside the hollow cylinder through this threaded assembly structure. A horizontal hollow cylinder is fitted with a first diaphragm 45c, a second diaphragm 45d, and a third diaphragm 45e via pressure blocks. This three-diaphragm structure not only improves the sealing performance of the sealed cavity but, more importantly, prevents accidental triggering. A stepped three-diaphragm mounting platform is provided in the horizontal hollow cylinder. After the first diaphragm is pressed in place, a first pressure block is installed to the right of the first diaphragm. Then, a second diaphragm is pressed onto the right side of the first pressure block, also using the second pressure block. The third diaphragm is then pressed onto the second pressure block, again using the third pressure block. This pressing structure ensures the reliability and stability of the pressing process and also utilizes the sidewall of the hollow cylinder to improve the lateral sealing performance of the diaphragms. Finally, an annular fixing block, fixed to the right edge of the hollow cylinder, is pressed onto the right end face of the third pressure block. The horizontal hollow cylinder forms an inner cavity 45f through this three-diaphragm structure. 5. Due to its horizontal structure, when all three diaphragms are punctured, the cylinder cavity contains an air-expanding agent (including but not limited to expanding foam; the three diaphragms effectively seal and isolate the air). Upon encountering air entering through the third diaphragm, this air-expanding agent expands, causing the three diaphragms to bulge outwards or the agent to be exposed outside the hollow cylinder. At this point, the presence of the air-expanding agent can be visually inspected on the surface of the visualized micro-stroke detection device, thus determining whether the docking block exceeds the preset installation position. This prevents the flexible buffer device from effectively buffering while avoiding risks such as the movement structure on the guide rail detaching. The distance between the tip structure and the third diaphragm is determined by the tolerable preset amount of movement. This structure aims to be more economical for detection in scenarios with millimeter-level ultra-preset displacements, while maintaining excellent reliability and sensitivity.

[0113] Example 4: This example is an improvement on Example 1. Specifically, a cylindrical structure is provided at the heat dissipation and exhaust vent 31, such as... Figure 35As shown, the cylindrical structure has a base cylinder 31-1 at the bottom and a main cylinder 31-2 at the top. An annular groove 31-1a is provided at the top of the base cylinder, and the bottom of the base cylinder is fixedly connected to the roof. An annular protrusion 31-2a is provided at the bottom of the main cylinder, which engages with the annular groove. Multiple U-shaped clips 31-3 are arranged circumferentially at the connection between the base cylinder and the main cylinder. The upper part of the U-shaped clip is fastened to the upper slot of the main cylinder, and the lower part of the U-shaped clip is fastened to the lower slot of the base cylinder. The inner diameter of the main cylinder gradually decreases from bottom to top. While workers can enter through the roof, the open ventilation vents pose a safety hazard of falling (stepping into). The variable-diameter cylindrical structure provides isolation and protection, reducing this risk. The variable-diameter cylinder also acts as a guide to facilitate internal heat dissipation. The variable-diameter cylinder can also serve as a structural component, facilitating the installation of auxiliary components at the ventilation vents.

[0114] The description of existing technologies has been omitted from the entire text.

[0115] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes in form and detail may be made without departing from the spirit and scope of the present invention.

Claims

1. A welding system for an automotive radiator frame assembly, characterized in that, It includes a flexible laser welding workstation and a welding fixture for the automotive radiator frame assembly that can be detachably mounted on the positioner; A flexible laser welding workstation includes a room-like structure arranged in a straight line, with a staircase structure in the middle connecting to a second-floor platform of the room-like structure. The second-floor platform is equipped with a protective railing. A first shielding room and a second shielding room are symmetrically arranged along the staircase structure. The first shielding room has a left side door on the first left wall panel, and the second shielding room has a right side door on the right wall panel. The roofs of the first shielding room and the second shielding room are equipped with multiple heat dissipation and ventilation holes. The front wall of the first shielded room is equipped with a No. 1 front door and a No. 3 front door. The rear wall of the first shielded room is equipped with a No. 2 rear door, which is symmetrical to the No. 1 front door and a No. 4 rear door, which are symmetrically arranged at the No. 1 front door and the No. 2 rear door. The No. 1 workstation is equipped with a No. 1 positioner, and the No. 2 workstation is equipped with a No. 2 positioner. The No. 3 front door and the No. 4 rear door are symmetrically arranged with a No. 3 workstation and a No. 4 workstation. The No. 3 workstation is equipped with a No. 3 positioner, and the No. 4 workstation is equipped with a No. 4 positioner. The front wall of the second shielded room is equipped with front door No. 5 and front door No.

7. The rear wall of the second shielded room is equipped with rear door No. 6, which is symmetrical to front door No. 5, and rear door No. 8, which is symmetrical to front door No. 5 and rear door No. 6, respectively. Workstation No. 5 and workstation No. 6 are equipped with workstation No. 5 and workstation No. 6, respectively. Workstation No. 7 and workstation No. 8 are symmetrically equipped with front door No. 7 and rear door No. 8, respectively. Workstation No. 7 and workstation No. 8 are equipped with workstation No.

8. The first shielded room’s front door, second rear door, third front door, and fourth rear door, as well as the second shielded room’s front door, seventh front door, sixth rear door, and eighth rear door, are equipped with lifting safety doors connected to the control module. The first shielded room is provided with a first bidirectional guide rail seat at the center, which is distributed along the length of the first shielded room. The first bidirectional guide rail seat is provided with a first bidirectional guide rail and a first guide rack parallel to the first bidirectional guide rail. A first slide is mounted on the first bidirectional guide rail by a slider. The first slide is provided with a first drive device that cooperates with the first guide rack. A first welding robot is mounted on the first slide. A first limit switch is mounted on the first slide. The first drive device, the first limit switch, and the first welding robot are connected to a control module. The second shielded room is provided with a second bidirectional guide rail seat at the center, which is distributed along the length of the second shielded room. The second bidirectional guide rail seat is provided with a second bidirectional guide rail and a second guide rack parallel to the second bidirectional guide rail. The second bidirectional guide rail is mounted with a second slide table via a slider. The second slide table is provided with a second drive device that cooperates with the second guide rack. The second slide table is mounted with a second welding robot and a second limit switch. The second drive device, the second limit switch, and the second welding robot are connected to the control module. The bottom of the first bidirectional guide rail seat and the second bidirectional guide rail seat are provided with positioning pads, and the ends of the first bidirectional guide rail and the second bidirectional guide rail are provided with positioning buffer devices. The positioning buffer device adopts a symmetrical bidirectional seat structure. The symmetrical bidirectional seat structure has symmetrically distributed triangular seats, and a connecting bracket is provided between the parallel triangular seats. The top of the triangular seats is provided with a limiting buffer block with a flat impact surface through a docking block. The welding fixture for the automotive radiator frame assembly includes: The first tooling base plate has positioner docking mechanisms at both ends that cooperate with the positioner. The first left front support fixing frame is set on the first tooling base plate, which includes a first left front top block, a first U-shaped positioning fixing member with a guiding mechanism, and a first left front positioning post for positioning the opening at the left front of the automotive water tank frame assembly. The first left limit adjustment bracket fixing structure is set on the first tooling base plate; The irregular first left front surface mount limit adjustment bracket fixing structure, which is suspended and installed on the lower pressure seat of the first left limit adjustment bracket, has an L-shaped lower cantilever of the first left front surface mount limit adjustment bracket that is horizontally distributed, an L-shaped upper cantilever of the first left front surface mount limit adjustment bracket that is installed on the lower cantilever of the L-shaped first left front surface mount limit adjustment bracket, and a connector that is installed on the upper cantilever of the L-shaped first left front surface mount limit adjustment bracket. The left front car radiator frame assembly lower support assembly is located at the edge of the lower pressure seat of the first left limit adjustment bracket. It has a left front car radiator frame assembly lower support seat, a left front car radiator frame assembly lower support lifting cylinder located on the left front car radiator frame assembly lower support seat, and a left front car radiator frame assembly lower support block located on the left front car radiator frame assembly lower support lifting cylinder. The left oblique section of the automotive radiator frame assembly is fixed to the radiator frame support reinforcement component on the first tooling base plate. The left steering section fixing component of the automotive radiator frame assembly is mounted on the first tooling base plate; The intermediate straight section clamping assembly of the automotive radiator frame assembly is set on the first tooling base plate; Right steering section fixing component of automotive radiator frame assembly mounted on the first tooling base plate; The right-side inclined section of the automotive radiator frame assembly is fixed to the radiator frame support reinforcement component on the first tooling base plate. The first right front support fixing frame is installed on the base plate of the first tooling; A suspension lug fixing structure is installed on the first right front wall side of the first tooling base plate; The lower support assembly of the right front automotive radiator frame is located on the edge of the lower pressure seat of the first right front wall side mounting lug. The first right front wall side-mounted suspension lug fixing structure is the same as the first left limit adjustment bracket fixing structure, and the structure of the right front vehicle radiator frame assembly lower support assembly is the same as the left front vehicle radiator frame assembly lower support assembly.

2. The welding system according to claim 1, characterized in that, The first left limit adjustment bracket fixing structure includes: a first left limit adjustment bracket support frame, a first left limit adjustment bracket positioning cylinder seat provided on the first left limit adjustment bracket support frame, a first left limit adjustment bracket positioning cylinder provided on the first left limit adjustment bracket positioning cylinder seat, a first left limit adjustment bracket positioning column installed on the first left limit adjustment bracket positioning cylinder, a cylindrical first left limit adjustment bracket lower support body cantilevered on the first left limit adjustment bracket support frame, and a first left limit adjustment bracket side-pressure rotary cylinder provided on the edge of the first left limit adjustment bracket support frame for side-pressure rotation. The rotary cylinder is equipped with a first left limit adjustment bracket side pressure head, the first tooling base plate is provided with a first left limit adjustment bracket lower pressure seat, the first left limit adjustment bracket lower pressure seat is equipped with a first left limit adjustment bracket lower rotary cylinder, the first left limit adjustment bracket lower rotary cylinder is provided with a first left limit adjustment bracket lower pressure head, the first left limit adjustment bracket lower pressure seat is provided with a lower top block in the middle front of the left inclined section of the automotive radiator frame assembly, and the first left limit adjustment bracket lower rotary cylinder is provided with an upper pressure block in the middle front of the left inclined section of the automotive radiator frame assembly that cooperates with the lower top block in the middle front of the left inclined section of the automotive radiator frame assembly.

3. The welding system according to claim 1, characterized in that, The fixing assembly for the left-side inclined section of the automotive radiator frame assembly includes: a left fixing seat for the left-side inclined section of the automotive radiator frame assembly; a left upright plate of the left-side inclined section of the automotive radiator frame assembly disposed on the left fixing seat; a left guide rail assembly of the left-side inclined section of the automotive radiator frame assembly disposed on the left fixing seat; and a mounting assembly for the left-side inclined section of the automotive radiator frame assembly via a slider. The left guide slide of the left inclined section water tank frame support reinforcement component of the automotive water tank frame assembly, which is located on the left vertical plate of the left inclined section water tank frame support reinforcement component of the automotive water tank frame assembly, and the left pulling cylinder of the left inclined section water tank frame support reinforcement component of the automotive water tank frame assembly are connected to the left guide slide of the left inclined section water tank frame support reinforcement component of the automotive water tank frame assembly through the left cylinder fixing block of the left inclined section water tank frame support reinforcement component of the automotive water tank frame assembly. The upper part of the left vertical plate of the left-side inclined section of the automotive radiator frame assembly is symmetrically provided with L-shaped static fixing arms for the side wings of the left-side inclined section of the automotive radiator frame assembly. The left guide slide of the left-side inclined section of the automotive radiator frame assembly is provided with dynamic fixing arms for the side wings of the left-side inclined section of the automotive radiator frame assembly, which cooperate with the static fixing arms. A [missing information - likely a design feature] is provided between the dynamic fixing arms of the left-side inclined section of the automotive radiator frame assembly. The left guide slide of the left inclined section of the radiator frame support reinforcement of the automotive radiator frame assembly is fixed to the left guide slide of the left guide slide of the left inclined section of the radiator frame support reinforcement of the automotive radiator frame assembly. The left guide slide of the left inclined section of the radiator frame support reinforcement of the automotive radiator frame assembly is provided with a rear positioning head hole for the left inclined section of the radiator frame support reinforcement of the automotive radiator frame assembly. The left guide slide of the left inclined section of the radiator frame support reinforcement of the automotive radiator frame assembly is provided with a rear fixing top block for the left inclined section of the radiator frame support reinforcement of the automotive radiator frame assembly.

4. The welding system according to claim 1, characterized in that, The left steering section fixing component of the automotive radiator frame assembly includes: The left steering section fixing base of the automotive water tank frame assembly is set on the first tooling base plate; The lower top block of the left steering section of the automotive radiator frame assembly is installed on the fixed base of the left steering section of the automotive radiator frame assembly. The rotating clamping cylinder for the left steering part of the automotive radiator frame assembly is provided on the fixed base of the left steering part of the automotive radiator frame assembly, and is provided with an upper pressure head for the left steering part of the automotive radiator frame assembly that cooperates with the lower top block of the left steering part of the automotive radiator frame assembly. The left steering section fixing base of the automotive radiator frame assembly is equipped with a left steering section suspension lug positioning bracket.

5. The welding system according to claim 1, characterized in that, The front sidewall clamping structure of the intermediate straight section clamping assembly of the automotive radiator frame assembly welding fixture includes: The lower base is pressed against the front side wall of the straight section of the automotive water tank frame assembly, which is located on the first tooling base plate. The first guide rail assembly is installed on the front side wall of the middle straight section of the automotive water tank frame assembly, pressing against the lower base. The first cylinder assembly is mounted on the front side wall of the middle straight section of the automotive water tank frame assembly and pressed against the lower base. It is connected to the first slide table mounted on the first guide rail assembly via the first adapter block. The first L-shaped front pressure plate, located on the first slide, is provided with a front side wall rear surface that mates with the rear surface of the front side wall of the middle straight section of the automotive water tank frame assembly to press the fingers. The front side wall of the straight section of the portal-type automotive water tank frame assembly, which is set on the base plate of the first tooling, is pressed against the upper base. The second guide rail assembly is installed on the front side wall of the middle straight section of the portal-type automotive water tank frame assembly, pressing against the upper base; The cylinder assembly is located on the front side wall of the straight section in the middle of the portal-type automotive water tank frame assembly, pressing against the upper base, and is connected to the second slide table installed on the second guide rail assembly. The second L-shaped front pressure plate, located on the second slide, is provided with a front side wall front surface pressing finger that mates with the rear surface of the front side wall of the middle straight section of the automotive radiator frame assembly. The front side wall front surface pressing finger is provided with a middle straight section suspension ear pressing finger that presses the left and right suspension ears of the middle straight section of the automotive radiator frame assembly. The rear sidewall clamping structure of the intermediate straight section clamping assembly of the automotive radiator frame assembly welding fixture includes: The lower flange pressing base of the rear side wall of the middle straight section of the automotive radiator frame assembly is set on the first tooling base plate, and is provided with a back pressing finger of the lower flange of the rear side wall of the middle straight section of the automotive radiator frame assembly that matches the back of the lower flange of the rear side wall of the middle straight section of the automotive radiator frame assembly. The automotive radiator frame assembly middle straight section rear side wall lower flange rotary clamping cylinder fixing seat is set on the first tooling base plate. The automotive radiator frame assembly middle straight section rear side wall lower flange rotary clamping cylinder is installed thereon, and the automotive radiator frame assembly middle straight section rear side wall lower flange rotary clamping cylinder is provided with a finger for clamping the surface of the automotive radiator frame assembly middle straight section rear side wall lower flange.

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