Multi-direction rotary welding device for automobile anti-collision beam

Abstract

The invention relates to an automobile anti-collision beam multi-direction rotary welding device, and belongs to the field of automobile production and manufacturing, the automobile anti-collision beam multi-direction rotary welding device comprises a tool table, a clamp mechanism is arranged on the tool table, the clamp mechanism is used for clamping and fixing a shell workpiece, the tool table comprises a fixing frame and an adjusting frame, the clamp mechanism is located on the adjusting frame, and the fixing frame is used for fixing the shell workpiece. The adjusting frame rotates relative to the fixing frame, and a driving mechanism used for controlling the adjusting frame to rotate is arranged on the fixing frame. The adjusting frame is rotationally arranged relative to the fixing frame, the placing posture of the shell workpiece on the tool table can be adjusted, and space conditions facilitating operation are provided for welding operation of the welding device.

Description

Technical Field

[0001] This application relates to the field of automobile manufacturing, and in particular to a multi-directional rotary welding device for automobile anti-collision beams. Background Technology

[0002] The crash beam is an important component of a car, affecting the overall safety performance of the vehicle. In a vehicle collision, the crash beam can absorb and disperse impact energy to a great extent, reducing injuries to the vehicle body and the driver.

[0003] The anti-collision box is the core structure of the anti-collision beam. In related technologies, the anti-collision box structure of an anti-collision beam is as follows: Figure 1 As shown, the device includes two channel steel-shaped shell workpieces 5 welded together. The two shell workpieces 5 are aligned along their lengths and fit snugly against each other. They are fixed together by welding, with the weld seams located at the two ends of their joined contours. The weld seams are approximately 30cm long. Since there are two joint edges between the two shell workpieces 5, there are two sets of weld seams, located on opposite sides of the crash box. During welding, appropriate tooling is required to clamp and position the two shell workpieces 5. Conventional tooling is fixed, meaning that after the tooling is fixed, the two shells remain stationary relative to the ground throughout the welding process.

[0004] Since the positions of the two shell workpieces are fixed and cannot be adjusted, and the two sets of welds are located on opposite sides of the anti-collision box, it is difficult to adjust the posture of the welding torch for automated welding equipment, or it may be necessary to set up an additional track system for the welding equipment to move, which increases the operating cost of the equipment. Summary of the Invention

[0005] To address the aforementioned issues, this application provides a multi-directional rotary welding device for automotive anti-collision beams.

[0006] The multi-directional rotary welding device for automotive anti-collision beams provided in this application adopts the following technical solution: A multi-directional rotary welding device for automotive anti-collision beams includes a tooling table with a clamping mechanism for holding and fixing a housing workpiece. The tooling table includes a fixed frame and an adjusting frame. The clamping mechanism is located on the adjusting frame, which rotates relative to the fixed frame. The fixed frame is equipped with a drive mechanism for controlling the rotation of the adjusting frame.

[0007] By adopting the above technical solution, the placement posture of the shell workpiece on the tooling table can be adjusted by adjusting the rotation setting of the adjustment frame relative to the fixed frame, providing convenient operating space conditions for the welding operation of the welding device.

[0008] Preferably, the drive mechanism includes a main shaft, a connecting plate, a primary hydraulic cylinder, and a secondary hydraulic cylinder. The main shaft is fixedly connected to an adjusting frame, and the adjusting frame is rotatably connected to the fixed frame via the main shaft. The connecting plate is rotatably connected to the main shaft, and the rotation axis of the connecting plate coincides with the axis of the main shaft. The cylinder body of the primary hydraulic cylinder is hinged to the fixed frame, and the piston rod is hinged to the connecting plate. The cylinder body of the secondary hydraulic cylinder is hinged to the connecting plate, and the piston rod is hinged to the adjusting frame.

[0009] By adopting the above technical solution, the propulsion driving force provided by the hydraulic cylinder is used to control the rotation of the main shaft. The connection plate and the two-stage hydraulic cylinder are designed to improve the driving rotation angle of the drive mechanism on the main shaft.

[0010] Preferably, there are two shell workpieces, namely a first channel steel and a second channel steel, with the slots of the first channel steel and the second channel steel facing each other; a plurality of support seats are fixedly connected to the adjusting frame, and the support seats abut against the side of the first channel steel away from the second channel steel; the clamping mechanism includes a first positioning pin, the first positioning pin is fixedly connected to the support seat, and a first positioning hole is opened on the first channel steel for the first positioning pin to be inserted.

[0011] By adopting the above technical solution, the first channel steel is placed on the support seat of the adjustment frame, with its slot located on the side away from the support seat, and the first positioning pin is inserted into the first positioning hole. At this time, the initial positioning of the first channel steel on the adjustment seat is achieved.

[0012] Preferably, the clamping mechanism includes an end clamping assembly, the end clamping assembly includes an end first cantilever and a first drive source, the end first cantilever is rotatably connected to the adjusting frame, the first drive source is used to control the rotation of the end first cantilever, the end first cantilever is provided with a first abutting block, the first abutting block and one of the support seats respectively abut against the opposite sides of the first channel steel.

[0013] By adopting the above technical solution, after the first drive source is started, the first cantilever at the end flips toward the first channel steel, so that the first abutting block and one of the support seats abut against the opposite sides of the first channel steel to form a clamping effect.

[0014] Preferably, the end clamp assembly further includes a second end cantilever, a second abutment block, a second drive source, and a third abutment block. The second end cantilever is hinged to the first end cantilever. The second drive source is used to control the rotation of the second end cantilever. The second abutment block is fixedly connected to the first end cantilever. The third abutment block is fixedly connected to the second end cantilever. The second abutment block and the third abutment block abut against opposite sides of the second channel steel, respectively.

[0015] By adopting the above technical solution, the second channel steel is placed on the first channel steel, the second drive source is started, and the end second cantilever flips toward the first channel steel or the second channel steel, so that the second abutting block and the third abutting block abut against the opposite sides of the second channel steel to form a clamping effect.

[0016] Preferably, an inner support frame is fixedly connected between the first channel steel and the second channel steel, and the inner support frame is located at the middle of the length direction of the first channel steel and the second channel steel; the clamping mechanism further includes a central clamping assembly, which includes a central cantilever, a central drive source and a fourth abutment block. The central cantilever is rotatably connected to the adjusting frame, the fourth abutment block is fixedly connected to the central cantilever, the central drive source controls the rotation of the central cantilever, and the fourth abutment block abuts against the side of the second channel steel opposite to the inner support frame, and one of the support seats abuts against the side of the first channel steel opposite to the inner support frame.

[0017] By adopting the above technical solution, after the central drive source is started, the central cantilever flips toward the shell workpiece, and the fourth abutment block and the support seat abut against the opposite sides of the shell workpiece respectively, forming a clamping and fixing of the shell workpiece.

[0018] Preferably, the clamping mechanism further includes an auxiliary cantilever and an auxiliary drive source. The auxiliary cantilever and the adjusting frame are rotatably connected. The auxiliary drive source controls the rotation of the auxiliary cantilever. A second positioning pin is fixedly connected to the auxiliary cantilever. A second positioning hole for the second positioning pin to be inserted is opened on the second channel steel. A contact sensor is also fixedly connected to the auxiliary cantilever. The contact sensor is electrically connected to the control system of the auxiliary drive source. When the contact sensor contacts the second channel steel, the auxiliary drive source stops operating.

[0019] By adopting the above technical solution, the auxiliary cantilever is mainly used to insert the second positioning pin into the second positioning hole. When the contact sensor contacts the housing workpiece, it indicates that the auxiliary cantilever has rotated into place.

[0020] Preferably, it also includes a support mechanism. The adjustment frame has a support groove. During welding, the groove opening faces downward. The support mechanism includes a support drive source and a support plate. The support plate is movably connected to the fixed frame. The support drive source controls the movement of the support plate. One end of the support plate abuts against the bottom of the support groove.

[0021] By adopting the above technical solution, after the adjustment frame rotates to a suitable angle, the support plate of the support mechanism continuously abuts against the adjustment frame, enabling the adjustment frame to maintain a stable posture for a long time, while reducing the working pressure of the drive mechanism.

[0022] Preferably, the support drive source is a power cylinder, the cylinder body of the power cylinder is fixedly connected to the fixed frame, the piston rod is fixedly connected to the support plate, and the extension and retraction direction of the piston rod of the power cylinder is vertical.

[0023] Preferably, one end of the support plate is rotatably connected to the fixed frame, the rotation plane of the support plate is perpendicular to the rotation plane of the adjustment frame, the support drive source is used to control the rotation of the support plate, the bottom of the support groove is fixedly connected to a limit block, and when the support plate abuts against the limit block, the length of the support plate is perpendicular to the ground.

[0024] In summary, this application includes at least one of the following beneficial technical effects: 1. By adjusting the rotation of the adjustment frame relative to the fixed frame, the placement posture of the shell workpiece on the tooling table can be adjusted, providing convenience for the welding operation of the welding device; 2. With the support mechanism in place, after the adjustment frame rotates to a suitable angle, the support plate of the support mechanism continuously abuts against the adjustment frame, enabling the adjustment frame to maintain a stable posture for a long time, while reducing the working pressure on the drive mechanism. Attached Figure Description

[0025] Figure 1 This is a structural schematic diagram of the anti-collision beam shell workpiece used in this application.

[0026] Figure 2 This is a schematic diagram of the overall structure of the multi-directional rotary welding device for automotive anti-collision beams in the embodiments of this application.

[0027] Figure 3 This is a structural schematic diagram illustrating the adjustment frame and clamping mechanism in the embodiments of this application.

[0028] Figure 4 This is a schematic diagram illustrating the first form of the support structure in the embodiments of this application.

[0029] Figure 5 This is a schematic diagram illustrating a second form of the support structure in the embodiments of this application.

[0030] Explanation of reference numerals in the attached drawings: 1. Tooling table; 11. Adjusting frame; 111. Support groove; 112. Limiting block; 12. Fixing frame; 2. Drive mechanism; 21. Spindle; 22. Connecting plate; 23. First-stage hydraulic cylinder; 24. Second-stage hydraulic cylinder; 3. Support mechanism; 31. Support drive source; 32. Support plate; 4. Fixture mechanism; 41. Support base; 411. First locating pin; 42. End fixture assembly; 421. End first cantilever; 422. First drive source; 423. First abutment block; 424. Second end cantilever; 425. Second abutment block; 426. Second drive source; 427. Third abutment block; 43. Middle clamp assembly; 431. Middle cantilever; 432. Middle drive source; 433. Fourth abutment block; 44. Auxiliary cantilever; 441. Auxiliary drive source; 442. Second positioning pin; 443. Contact sensor; 5. Housing workpiece; 51. First channel steel; 511. First positioning hole; 52. Second channel steel; 521. Second positioning hole; 53. Inner support frame. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0032] This application discloses a multi-directional rotary welding device for automotive anti-collision beams, such as... Figure 1 and 2 As shown, the fixture includes a tooling table 1, which includes an adjusting frame 11 and a fixed frame 12. The shell workpiece 5 to be welded includes a first channel steel 51 and a second channel steel 52. The tooling table 1 is equipped with a clamping mechanism 4, which is used to clamp and fix the shell workpiece 5 on the adjusting frame 11. The adjusting frame 11 is rotatably mounted on the fixed frame 12, and the fixed frame 12 is equipped with a drive mechanism 2 for controlling the rotation of the adjusting frame 11.

[0033] like Figure 1 As shown, in the assembled state, the first channel steel 51 is located on one side of the second channel steel 52, and their openings face each other. There are two welds between them, located on opposite sides of each other. An inner support frame 53 is fixedly connected between the first channel steel 51 and the second channel steel 52. The inner support frame 53 is located at the middle of the length of the first channel steel 51 and the second channel steel 52, and provides structural support for both. A first positioning hole 511 is provided on the first channel steel 51, and a second positioning hole 521 is provided on the second channel steel 52. The first positioning hole 511 and the second positioning hole 521 are not coaxial.

[0034] like Figure 2 and 3As shown, several support seats 41 are fixedly connected to the adjusting frame 11. The support seats 41 abut against the side of the first channel steel 51 away from the second channel steel 52. The clamping mechanism 4 includes a first positioning pin 411. When the first channel steel 51 is placed on the support seat 41 of the adjusting frame 11, its slot is located on the side away from the support seat 41, and the first positioning pin 411 is inserted into the first positioning hole 511. At this time, the initial positioning of the first channel steel 51 on the adjusting seat is achieved. In this embodiment, there are three support seats 41. When the first channel steel 51 is placed on the adjusting frame 11, one support seat 41 is located in the middle of the first channel steel 51, and the other two support seats 41 are located at the two ends of the first channel steel 51 respectively.

[0035] like Figure 2 and 3 As shown, the clamping mechanism 4 includes an end clamping assembly 42 and a middle clamping assembly 43. The end clamping assembly 42 has two parts, which are respectively located at both ends of the workpiece 5 in the length direction of the housing. The end clamping assembly 42 includes an end first cantilever 421 and a first drive source 422. The end first cantilever 421 is rotatably connected to the adjusting frame 11. The first drive source 422 is used to control the rotation of the end first cantilever 421. A first abutment block 423 is fixedly connected to the end first cantilever 421. The end first cantilever 421 is flipped toward the first channel steel 51, so that the first abutment block 423 and one of the support seats 41 abut against the opposite sides of the first channel steel 51 to form a clamp. The end clamp assembly 42 also includes a second end cantilever 424, a second abutment block 425, a second drive source 426, and a third abutment block 427. The second end cantilever 424 is hinged to the first end cantilever 421. The second drive source 426 is used to control the rotation of the second end cantilever 424. The second abutment block 425 is fixedly connected to the first end cantilever 421, and the third abutment block 427 is fixedly connected to the second end cantilever 424. When the second channel steel 52 is placed on the first channel steel 51, the second end cantilever 424 is flipped toward the first channel steel 51 or the second channel steel 52, so that the second abutment block 425 and the third abutment block 427 abut against the opposite sides of the second channel steel 52 to form a clamp.

[0036] like Figure 2 and 3 As shown, the middle clamp assembly 43 includes a middle cantilever 431, a middle drive source 432, and a fourth abutment block 433. The middle cantilever 431 is rotatably connected to the adjusting frame 11, and its rotation axis is perpendicular to the rotation axis of the end first cantilever 421. The middle drive source 432 controls the rotation of the middle cantilever 431. The fourth abutment block 433 is fixedly connected to the middle cantilever 431 and abuts against the side of the second channel steel 52 away from the inner support frame 53. At this time, the fourth abutment block 433 and the middle support seat 41 are located on opposite sides of the shell workpiece 5.

[0037] like Figure 2 and 3 As shown, the clamping mechanism 4 also includes an auxiliary cantilever 44 and an auxiliary drive source 441. The auxiliary cantilever 44 is rotatably connected to the adjusting frame 11, and the auxiliary drive source 441 controls the rotation of the auxiliary cantilever 44. The rotation axis of the auxiliary cantilever 44 is parallel to the rotation axis of the middle cantilever 431. There are two auxiliary cantilever 44s, which are located on opposite sides of the middle cantilever 431. A second positioning pin 442 is fixedly connected to the auxiliary cantilever 44. A contact sensor 443 is also connected to one of the auxiliary cantilever 44s. The contact sensor 443 is electrically connected to the control system of the auxiliary drive source 441. When the auxiliary cantilever 44 flips toward the second channel steel 52 and the contact sensor 443 contacts the second channel steel 52, the auxiliary drive source 441 stops operating. At this time, the second positioning pin 442 is inserted into the second positioning hole 521.

[0038] like Figure 2 and 3 As shown, the first drive source 422, the second drive source 426, the middle drive source 432, and the auxiliary drive source 441 are all hydraulic cylinders; the cylinder body of the first drive source 422 is hinged to the adjusting frame 11, and the piston rod is hinged to the end first cantilever 421; the cylinder body of the second drive source 426 is hinged to the end first cantilever 421, and the piston rod is hinged to the end second cantilever 424; the cylinder body of the middle drive source 432 is hinged to the adjusting frame 11, and the piston rod is hinged to the middle cantilever 431; the cylinder body of the auxiliary drive source 441 is hinged to the adjusting frame 11, and the piston rod is hinged to the auxiliary cantilever 44.

[0039] like Figure 2 As shown, the drive mechanism 2 includes a main shaft 21, a connecting plate 22, a primary hydraulic cylinder 23, and a secondary hydraulic cylinder 24. The main shaft 21 is fixedly connected to the adjusting frame 11, and the length direction of the main shaft 21 is consistent with the length direction of the housing workpiece 5. The adjusting frame 11 is rotatably connected to the fixed frame 12 through the main shaft 21. The connecting plate 22 is rotatably connected to the main shaft 21, and the rotation axis of the connecting plate 22 coincides with the axis of the main shaft 21. The cylinder body of the primary hydraulic cylinder 23 is hinged to the fixed frame 12, and the piston rod is hinged to the connecting plate 22. The cylinder body of the secondary hydraulic cylinder 24 is hinged to the connecting plate 22, and the piston rod is hinged to the adjusting frame 11. In the initial state, the piston rod of the first-stage cylinder 23 is extended, and the piston rod of the second-stage cylinder is retracted. If the first-stage cylinder remains stationary and the piston rod of the second-stage cylinder extends, the adjusting bracket 11 can rotate 90° so that one of the joints of the first channel steel 51 and the second channel steel 52 is at the top. If the second-stage cylinder remains stationary and the piston rod of the first-stage cylinder retracts, the adjusting bracket 11 can rotate 90° in the opposite direction so that the other joint of the first channel steel 51 and the second channel steel 52 is at the top. The welding posture is when the joints of the two channel steels face upwards.

[0040] like Figure 2 , 3As shown in Figure 4, a support mechanism 3 is also included. The support mechanism 3 is used to support the adjustment frame 11 in the welding posture, reducing the working pressure of the first-stage cylinder 23 and the second-stage cylinder 24 of the drive mechanism 2. Support grooves 111 are provided on both sides of the adjustment frame 11. The length direction of the support grooves 111 is parallel to the axial direction of the main shaft 21. When the shell workpiece 5 is clamped on the adjustment frame 11, the overall center of gravity of the adjustment frame 11, the shell workpiece 5, and the clamping mechanism 4 is located on the side of the main shaft 21 away from the support grooves 111. In the welding posture, the opening of the support grooves 111 faces downwards. The support mechanism 3 includes a support drive source 31 and a support plate 32. The support plate 32 is movably connected to the fixed frame 12. The support drive source 31 controls the movement state of the support plate 32, so that in the welding posture, the support plate 32 can abut against the groove wall of the support groove 111 from bottom to top.

[0041] like Figure 4 and 5 As shown, this application illustrates two modes of movement for the support plate 32: First, the support drive source 31 is a power cylinder (pneumatic or hydraulic). The cylinder body is fixedly connected to the fixed frame 12, and the piston rod is fixedly connected to the support plate 32. The piston rod extends vertically. When the opening of the support groove 111 faces downwards, the bottom of the support groove 111 is opposite to the upper edge of the support plate 32, and the piston rod extends until the upper edge of the support plate 32 abuts against the bottom of the support groove 111. Second, one end of the support plate 32 is rotatably connected to the fixed frame 12, and the rotation plane of the support plate 32 is perpendicular to the rotation plane of the adjusting frame 11. The support drive source 31 is a pneumatic cylinder. The cylinder body is hinged to the fixed frame 12, and the piston rod is hinged to the support plate 32. The axes of connection are parallel to the rotation axis of the support plate 32 relative to the fixed frame 12. When the piston rod extends, it can apply a pushing and flipping force to the support plate 32, ultimately causing the support plate 32 to flip until its surface is vertical. In the second form, the bottom of the support groove 111 is fixedly connected to the limiting block 112. When the support plate 32 abuts against the limiting block 112, the length of the support plate 32 is perpendicular to the ground, indicating that the support plate 32 has been flipped into place.

[0042] The implementation principle of the multi-directional rotary welding device for automotive anti-collision beams in this application embodiment is as follows: The tooling table 1 of this welding device is suitable for processing sites where the welding torch of the welding equipment is located above the tooling table 1. First, the first channel steel 51 and the second channel steel 52 are placed on the adjusting frame 11 in sequence and clamped by the clamping mechanism 4. Then, the drive mechanism 2 controls the adjusting frame 11 to rotate to two angles in the welding state for the welding equipment to perform welding operations. When maintaining the welding state, the support mechanism 3 provides corresponding support for the adjusting frame 11.

[0043] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-directional rotary welding device for automotive anti-collision beams, comprising a tooling table (1), wherein a clamping mechanism (4) is provided on the tooling table (1), the clamping mechanism (4) being used to clamp and fix a shell workpiece (5), characterized in that: The tooling table (1) includes a fixed frame (12) and an adjusting frame (11). The clamping mechanism (4) is located on the adjusting frame (11). The adjusting frame (11) rotates relative to the fixed frame (12). The fixed frame (12) is provided with a drive mechanism (2) for controlling the rotation of the adjusting frame (11).

2. The multi-directional rotary welding device for automotive anti-collision beams according to claim 1, characterized in that: The drive mechanism (2) includes a main shaft (21), a connecting plate (22), a first-stage cylinder (23), and a second-stage cylinder (24). The main shaft (21) is fixedly connected to the adjusting frame (11), and the adjusting frame (11) is rotatably connected to the fixed frame (12) through the main shaft (21). The connecting plate (22) is rotatably connected to the main shaft (21), and the rotation axis of the connecting plate (22) coincides with the axis of the main shaft (21). The cylinder body of the first-stage cylinder (23) is hinged to the fixed frame (12), and the piston rod is hinged to the connecting plate (22). The cylinder body of the second-stage cylinder (24) is hinged to the connecting plate (22), and the piston rod is hinged to the adjusting frame (11).

3. A multi-directional rotary welding device for automotive anti-collision beams according to claim 1 or 2, characterized in that: The shell workpiece (5) has two parts, namely a first channel steel (51) and a second channel steel (52), with the slots of the first channel steel (51) and the second channel steel (52) facing each other; The adjusting frame (11) is fixedly connected to several support seats (41). The support seats (41) abut against the side of the first channel steel (51) away from the second channel steel (52). The clamping mechanism (4) includes a first positioning pin (411). The first positioning pin (411) is fixedly connected to the support seat (41). The first channel steel (51) is provided with a first positioning hole (511) for the first positioning pin (411) to be inserted.

4. The multi-directional rotary welding device for automotive anti-collision beams according to claim 3, characterized in that: The clamping mechanism (4) includes an end clamping assembly (42), which includes an end first cantilever (421) and a first drive source (422). The end first cantilever (421) is rotatably connected to the adjusting frame (11). The first drive source (422) is used to control the rotation of the end first cantilever (421). The end first cantilever (421) is provided with a first abutting block (423). The first abutting block (423) and one of the support seats (41) abut against the opposite sides of the first channel steel (51).

5. The multi-directional rotary welding device for automotive anti-collision beams according to claim 4, characterized in that: The end clamp assembly (42) further includes a second end cantilever (424), a second abutment block (425), a second drive source (426), and a third abutment block (427). The second end cantilever (424) is hinged to the first end cantilever (421). The second drive source (426) is used to control the rotation of the second end cantilever (424). The second abutment block (425) is fixedly connected to the first end cantilever (421). The third abutment block (427) is fixedly connected to the second end cantilever (424). The second abutment block (425) and the third abutment block (427) abut against the opposite sides of the second channel steel (52), respectively.

6. A multi-directional rotary welding device for automotive anti-collision beams according to claim 4 or 5, characterized in that: An inner support frame (53) is fixedly connected between the first channel steel (51) and the second channel steel (52), and the inner support frame (53) is located at the middle of the length direction of the first channel steel (51) and the second channel steel (52); The clamping mechanism (4) further includes a central clamping assembly (43), which includes a central cantilever (431), a central drive source (432), and a fourth abutment block (433). The central cantilever (431) is rotatably connected to the adjusting frame (11), and the fourth abutment block (433) is fixedly connected to the central cantilever (431). The central drive source (432) controls the rotation of the central cantilever (431). The fourth abutment block (433) abuts against the side of the second channel steel (52) away from the inner support frame (53), and one of the support seats (41) abuts against the side of the first channel steel (51) away from the inner support frame (53).

7. A multi-directional rotary welding device for automotive anti-collision beams according to claim 4 or 5, characterized in that: The clamping mechanism (4) further includes an auxiliary cantilever (44) and an auxiliary drive source (441). The auxiliary cantilever (44) and the adjusting frame (11) are rotatably connected. The auxiliary drive source (441) controls the rotation of the auxiliary cantilever (44). A second positioning pin (442) is fixedly connected to the auxiliary cantilever (44). A second positioning hole (521) for the second positioning pin (442) to be inserted is provided on the second channel steel (52). A contact sensor (443) is also fixedly connected to the auxiliary cantilever (44). The contact sensor (443) is electrically connected to the control system of the auxiliary drive source (441). When the contact sensor (443) contacts the second channel steel (52), the auxiliary drive source (441) stops operating.

8. The multi-directional rotary welding device for automotive anti-collision beams according to claim 1, characterized in that: It also includes a support mechanism (3), on which a support groove (111) is provided. During welding, the opening of the support groove (111) faces downward. The support mechanism (3) includes a support drive source (31) and a support plate (32). The support plate (32) is movably connected to the fixed frame (12). The support drive source (31) controls the movement of the support plate (32). One end of the support plate (32) abuts against the bottom of the support groove (111).

9. A multi-directional rotary welding device for automotive anti-collision beams according to claim 8, characterized in that: The support drive source (31) is a power cylinder. The cylinder body of the power cylinder is fixedly connected to the fixed frame (12), and the piston rod is fixedly connected to the support plate (32). The extension and retraction direction of the piston rod of the power cylinder is vertical.

10. A multi-directional rotary welding device for automotive anti-collision beams according to claim 8, characterized in that: One end of the support plate (32) is rotatably connected to the fixed frame (12). The rotation plane of the support plate (32) is perpendicular to the rotation plane of the adjusting frame (11). The support drive source (31) is used to control the rotation of the support plate (32). The bottom of the support groove (111) is fixedly connected to the limit block (112). When the support plate (32) abuts against the limit block (112), the length of the support plate (32) is perpendicular to the ground.

Images