Multi-angle welding equipment for aviation mechanical parts

Abstract

The application discloses a kind of multi-angle welding equipment of aeronautical machinery parts, it is related to aeronautical machinery parts processing technical field, including: rack;Welding station is fixedly connected to rack;Deflection adjusting mechanism is set to the middle place of welding station, the deflection adjusting mechanism includes deflection platform.The multi-angle welding equipment of aeronautical machinery parts disclosed in the application has two aeronautical machinery parts positioning, starting forward and reverse motor, drives rotating rail to be turned to two parts, expand cylinder drives extension inner slide rod to slide to expand column, when contact sensor reaches the tailor-welding point, forward and reverse motor drives rotating rail reset, contact plate is coplanar with tailor-welding point at this time.Subsequently, the positioning cylinder pushes the butt joint of two parts, when tailor-welding point contact and two contact plates are contacted, pressure sensor monitors pressure change, and the positioning cylinder stops running, the tailor-welding point pressure is critical value at this time, can avoid thin-walled part molten pool stress deformation, improve the effect of tailor-welding precision.

Description

Technical Field

[0001] This invention relates to the field of aerospace mechanical parts processing technology, and in particular to a multi-angle welding device for aerospace mechanical parts. Background Technology

[0002] As aerospace equipment continues to develop towards higher thrust-to-weight ratios, longer lifespans, and higher reliability, the requirements for manufacturing precision and service performance of aerospace mechanical parts are becoming increasingly stringent. A large number of key load-bearing components and connectors use advanced steel materials. These materials have excellent high-temperature strength, fatigue resistance, and corrosion resistance. However, their special physical and mechanical properties, such as low thermal conductivity, high hardening tendency, and sensitivity to welding thermal cycles, pose significant challenges to the forming quality control of multi-angle spatial welds. With the rapid development of the intelligent manufacturing equipment industry, intelligent welding systems that integrate multi-axis robot linkage, adaptive control, and online quality monitoring are gradually becoming an important technical path to solve the above problems. Developing a multi-angle intelligent welding equipment for aerospace mechanical parts that is suitable for the special physical properties of advanced steel materials has important engineering application value and industrial promotion significance.

[0003] When existing multi-angle welding equipment is used for welding thin-walled, precision parts, due to the thinness of the parts themselves, there is an inevitable squeezing at the joint point after the two parts are joined. During the welding process, a molten pool forms at the joint point, causing deformation between the thin parts due to squeezing, which is not part of the welding operation. As a result, the parameters of the joint point after splicing change due to deformation, making it unusable for subsequent use and reducing the value of the multi-angle welding equipment. Summary of the Invention

[0004] This invention discloses a multi-angle welding device for aerospace mechanical parts, which aims to solve the technical problem that in the welding process of thin-walled precision parts, existing equipment is prone to additional deformation of the weld pool due to the extrusion at the joint of the parts, which leads to the joint parameters deviating from the design requirements and thus scrapping the parts.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-angle welding device for aerospace mechanical parts, comprising:

[0007] stand;

[0008] The welding table is fixedly connected to the frame;

[0009] A deflection adjustment mechanism is located in the middle of the welding table. The deflection adjustment mechanism includes a deflection table, and a positioning groove is opened on the top of the deflection table. Two symmetrically distributed positioning sliders are slidably connected on the positioning groove.

[0010] Two movable plates are fixedly connected to the top of adjacent positioning sliders. One of the movable plates is fixedly connected to a drive motor, and the output shaft of the drive motor is fixedly connected to a drive shaft rod through a coupling. The other movable plate is connected to an end docking shaft through a bearing on the side facing the drive shaft rod.

[0011] Two rotating connecting frames are fixedly connected to the ends of the drive shaft and the end docking shaft, respectively;

[0012] Two clamping frames are fixedly connected to one side of an adjacent rotating link, and fixed frames are fixedly connected to the top and bottom of the two clamping frames;

[0013] The anti-pinch mechanism is mounted on a fixed frame with two clamping frames located above it. The anti-pinch mechanism includes an unfolding column, which is fixedly connected to the top of the fixed frame located above it.

[0014] In a preferred embodiment, the anti-crushing mechanism further includes:

[0015] An extended inner slide rod is slidably connected to a groove opened at one end of the unfolding column, and a movable outer ring is fixedly connected to the outer side wall of the extended inner slide rod.

[0016] A fixed ring is fixedly connected to the outer wall of the unfolding column. An unfolding cylinder is fixedly connected to the side of the fixed ring facing the moving outer ring. The output end of the unfolding cylinder is fixedly connected to one side of the moving outer ring.

[0017] A docking plate is fixedly connected to the end of the extended inner slide rod away from the unfolding column. The docking plate has an installation groove on the side away from the unfolding column. A pressure sensor is fixedly connected to the inner wall of the installation groove. Telescopic connecting rods are distributed in a ring inside the installation groove outside the pressure sensor. The ends of multiple telescopic connecting rods are fixedly connected to the same contact plate, and the contact plate is in contact with the pressure sensor.

[0018] With a corresponding anti-extrusion mechanism, after the two welded aerospace mechanical parts are positioned, the forward and reverse motors are activated. The forward and reverse motors drive the rotating rail to rotate between the two aerospace mechanical parts. Then, the adjusting deployment cylinder drives the extended inner slide rod to slide into the deployment column. When the contact sensor contacts the welding point of the aerospace mechanical parts, the forward and reverse motors drive the rotating rail to reset. At this time, the contact plate and the welding point of the aerospace mechanical parts are on the same plane. Then, the adjusting positioning cylinder drives the two aerospace mechanical parts to dock. When the welding point of the two aerospace mechanical parts contacts, the two contact plates also contact. When the pressure detected by the pressure sensor changes, the positioning cylinder stops operating. In this case, the pressure at the welding point of the two aerospace mechanical parts is at the critical value, thereby ensuring that the thin-walled mechanical parts will not be deformed by the molten pool due to the presence of external pressure during the welding process, thus improving the welding accuracy.

[0019] In a preferred embodiment, the anti-crushing mechanism further includes:

[0020] The motor plate is fixedly connected to the outer wall of the extended inner slide bar;

[0021] A forward and reverse motor is fixedly connected to one side of the motor board. The output shaft of the forward and reverse motor is fixedly connected to a forward and reverse shaft via a coupling. A rotating rail is fixedly connected to the end of the forward and reverse shaft.

[0022] Multiple mounting sleeves are fixedly connected to the outer wall of the rotating railing, and a contact sensor is fixedly connected inside each mounting sleeve.

[0023] In a preferred embodiment, the deflection adjustment mechanism further includes:

[0024] A lifting frame is fixedly connected to the bottom of the platform, and a support plate is fixedly connected to the top of the lifting frame;

[0025] Two shaft plates are symmetrically distributed on the top of the support plate. The two shaft plates are connected to the same deflection shaft on opposite sides by bearings. A deflection bracket is fixedly connected to the outer wall of the deflection shaft and is fixedly connected to the bottom of the deflection table.

[0026] In a preferred embodiment, the deflection adjustment mechanism further includes:

[0027] Two mounting rods are symmetrically distributed on the top of the support plate. Multiple deflection cylinders are connected to the side walls of the two mounting rods by hinges, and the output ends of the deflection cylinders are connected to the bottom of the deflection table by hinges.

[0028] Two integrated rods are fixedly connected to the top of the support plate away from the deflection frame. Shock-absorbing spring rods are fixedly connected at equal intervals to the top of the integrated rods, and the ends of the shock-absorbing spring rods are fixedly connected to the bottom of the deflection table.

[0029] In a preferred embodiment, the deflection table is fixedly connected to side frames near the bottom of both ends, and positioning cylinders are fixedly connected to opposite sides of the two side frames. The output ends of the two positioning cylinders are fixedly connected to one side of the adjacent moving plate.

[0030] In a preferred embodiment, rotating ring rails are fixedly connected to opposite sides of the two movable plates, and rotating sliders are slidably connected to both rotating ring rails. A rotating connecting frame is fixedly connected to the outer wall of the rotating slider. Hydraulic cylinders are fixedly connected at equal distances to opposite sides of two fixed frames located on the same clamping frame. The output ends of multiple hydraulic cylinders located on the same fixed frame are fixedly connected to the same positioning pressure plate. Protective pads are provided on opposite sides of the two positioning pressure plates.

[0031] In a preferred embodiment, it also includes:

[0032] frame;

[0033] The robotic arm is mounted on the frame;

[0034] An end frame is fixedly connected to the output end of the robotic arm, and a laser welding head is mounted on the end frame.

[0035] The mounting bracket is fixedly connected to one side of the end frame, and a visual positioning module is fixedly connected to the outer side wall of the mounting bracket facing downward.

[0036] A cooling mechanism is provided on the end frame, the cooling mechanism including an external frame, and the external frame is fixedly connected to the side wall of the end frame.

[0037] In a preferred embodiment, the cooling mechanism further includes:

[0038] Two hangers are symmetrically distributed at the bottom of the external frame;

[0039] An annular air pipe is fixedly connected to the bottom end of two hanging rods, and cooling air holes are opened on the outer side wall of the annular air pipe facing downward.

[0040] In a preferred embodiment, the cooling mechanism further includes:

[0041] A pump ring frame is fixedly connected to an external frame. An air pump is fixedly connected in the pump ring frame, and the air delivery end of the air pump is connected to the inside of the annular air pipe through a pipeline.

[0042] A connecting plate is fixedly connected to one side of the end frame. A gas storage tank is fixedly connected to the top of the connecting plate. An air guide pipe is fixedly connected to the air inlet end of the air pump. One end of the air guide pipe is connected to the air delivery end of the gas storage tank.

[0043] This invention provides a multi-angle welding device for aerospace mechanical parts. After two aerospace mechanical parts are positioned, a forward and reverse motor is activated, driving a rotating rail to rotate between the two parts. A deploying cylinder drives an extended inner slide rod to slide into the deploying column. When a contact sensor touches the welding point, the forward and reverse motor drives the rotating rail to reset, at which point the contact plate and the welding point are coplanar. Subsequently, a positioning cylinder pushes the two parts together. When the welding point contacts and the two contact plates touch, a pressure sensor detects a pressure change, and the positioning cylinder stops operating. At this point, the pressure at the welding point is at a critical value, which can prevent deformation of the molten pool of thin-walled parts under stress, thus improving the welding accuracy. Attached Figure Description

[0044] Figure 1 This is a schematic diagram of the overall structure of a multi-angle welding equipment for aerospace mechanical parts proposed in this invention.

[0045] Figure 2This is a front view of the overall structure of a multi-angle welding equipment for aerospace mechanical parts proposed in this invention.

[0046] Figure 3 This is an enlarged view of the welding table and the structure above it of a multi-angle welding equipment for aerospace mechanical parts proposed in this invention.

[0047] Figure 4 This is a schematic diagram of the combined structure of the rotating ring rail, the anti-extrusion mechanism, and the clamping frame of a multi-angle welding equipment for aerospace mechanical parts proposed in this invention.

[0048] Figure 5 for Figure 4 Cross-sectional view of the combined structure of the rotating ring rail, clamping frame and positioning pressure plate.

[0049] Figure 6 This is a schematic diagram of the anti-extrusion mechanism of a multi-angle welding equipment for aerospace mechanical parts proposed in this invention.

[0050] Figure 7 for Figure 6 Exploded view of the structure.

[0051] Figure 8 This is a schematic diagram of the combined structure of the welding table and deflection adjustment mechanism of a multi-angle welding equipment for aerospace mechanical parts proposed in this invention.

[0052] Figure 9 for Figure 8 A schematic diagram of the planar structure.

[0053] Figure 10 This is a schematic diagram of the combined structure of the end frame, laser welding head, and cooling mechanism of a multi-angle welding equipment for aerospace mechanical parts proposed in this invention.

[0054] In the diagram: 1. Frame; 2. Rotating ring rail; 3. Platform; 4. Deflection adjustment mechanism; 401. Lifting frame; 402. Support plate; 403. Deflection platform; 404. Mounting rod; 405. Deflection cylinder; 406. Shock-absorbing spring rod; 407. Deflection connecting frame; 408. Deflection shaft; 409. Shaft plate; 410. Integrating rod; 5. Welding table; 6. Positioning slide; 7. Positioning cylinder; 8. Mounting frame; 9. End frame; 10. Laser welding head; 11. Robotic arm; 12. Anti-pinch mechanism; 1201. Unfolding column; 1202. Forward and reverse motor; 1203. Rotating railing; 1204. Extended inner slide bar; 1205. Contact sensor; 1206. Contact plate; 1207. Mounting sleeve; 1208. Docking plate; 1209. 1210. Reversible shaft; 1211. Moving outer ring; 1212. Deployment cylinder; 1213. Fixing ring; 1214. Telescopic connecting rod; 1215. Pressure sensor; 1216. Motor board; 13. Vision positioning module; 14. Cooling mechanism; 1401. External frame; 1402. Annular air pipe; 1403. Cooling air hole; 1404. Connecting plate; 1405. Air tank; 1406. Air guide pipe; 1407. Air pump; 1408. Pump ring frame; 1409. Hanging rod; 15. Side frame; 16. Clamping frame; 17. Fixing frame; 18. Moving plate; 19. Positioning pressure plate; 20. Protective pad; 21. Rotating slider; 22. Rotating connecting frame; 23. Positioning slider; 24. Hydraulic cylinder; 25. Drive motor; 26. Drive shaft. Detailed Implementation

[0055] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0056] The multi-angle welding equipment for aerospace mechanical parts disclosed in this invention is mainly used in the welding process of thin-walled precision parts. Existing equipment is prone to additional deformation of the weld pool due to the extrusion at the joint of the parts, which causes the joint parameters to deviate from the design requirements and thus become scrapped.

[0057] Reference Figures 1-10 A multi-angle welding device for aerospace mechanical parts, comprising:

[0058] Stand 3;

[0059] Welding table 5 is fixedly connected to frame 3;

[0060] The deflection adjustment mechanism 4 is located in the middle of the welding table 5. The deflection adjustment mechanism 4 includes a deflection table 403, and the top of the deflection table 403 has a positioning groove 6. Two symmetrically distributed positioning sliders 23 are slidably connected on the positioning groove 6.

[0061] Two movable plates 18 are fixedly connected to the top of adjacent positioning sliders 23 respectively. One movable plate 18 is fixedly connected to a drive motor 25, and the output shaft of the drive motor 25 is fixedly connected to a drive shaft 26 through a coupling. The other movable plate 18 is connected to an end docking shaft through a bearing on the side facing the drive shaft 26.

[0062] Two rotating connecting frames 22 are fixedly connected to the ends of the drive shaft 26 and the end docking shaft, respectively;

[0063] Two clamping frames 16 are fixedly connected to one side of an adjacent rotating link 22, and fixed frames 17 are fixedly connected to the top and bottom of the two clamping frames 16.

[0064] The anti-pinch mechanism 12 is disposed on the fixed frame 17 above the two clamping frames 16. The anti-pinch mechanism 12 includes an unfolding column 1201, and the unfolding column 1201 is fixedly connected to the top of the fixed frame 17 above.

[0065] Reference Figure 1 , Figure 5 , Figure 6 and Figure 7 In a preferred embodiment, the anti-crushing mechanism 12 further includes:

[0066] The extended inner slide rod 1204 is slidably connected to a groove opened at one end of the unfolding column 1201, and a movable outer ring 1210 is fixedly connected to the outer side wall of the extended inner slide rod 1204.

[0067] A fixed ring 1212 is fixedly connected to the outer wall of the unfolding column 1201. An unfolding cylinder 1211 is fixedly connected to the side of the fixed ring 1212 facing the moving outer ring 1210. The output end of the unfolding cylinder 1211 is fixedly connected to one side of the moving outer ring 1210.

[0068] The docking plate 1208 is fixedly connected to the end of the extended inner slide bar 1204 away from the unfolding column 1201. The docking plate 1208 has a mounting groove on the side away from the unfolding column 1201. The inner wall of the mounting groove is fixedly connected to a pressure sensor 1214. The mounting groove is located inside the pressure sensor 1214 and has telescopic connecting rods 1213 arranged in a ring. The ends of multiple telescopic connecting rods 1213 are fixedly connected to the same contact plate 1206, and the contact plate 1206 is in contact with the pressure sensor 1214.

[0069] In a specific application scenario, after the two welded aerospace mechanical parts are positioned, the forward and reverse motor 1202 is activated. The forward and reverse motor 1202 drives the rotating rail 1203 to rotate between the two aerospace mechanical parts. Then, the adjustment cylinder 1211 drives the extension inner slide 1204 to slide into the unfolding column 1201. When the contact sensor 1205 contacts the welding point of the aerospace mechanical parts, the forward and reverse motor 1202 drives the rotating rail 1203 to reset. At this time, the contact plate 1206 and the welding point of the aerospace mechanical parts are on the same plane. Then, the adjustment cylinder 7 drives the two aerospace mechanical parts to dock. When the welding point of the two aerospace mechanical parts contacts, the two contact plates 1206 also contact. When the pressure monitored by the pressure sensor 1214 changes, the positioning cylinder 7 stops running. In this case, the pressure at the welding point of the two aerospace mechanical parts is at a critical value, thereby ensuring that the thin-walled mechanical parts will not be deformed by the molten pool due to the presence of external pressure during the welding process, thus improving the welding accuracy.

[0070] Reference Figure 6 and Figure 7 In a preferred embodiment, the anti-crushing mechanism 12 further includes:

[0071] The motor plate 1215 is fixedly connected to the outer wall of the extended inner slide bar 1204;

[0072] A forward and reverse motor 1202 is fixedly connected to one side of a motor plate 1215. The output shaft of the forward and reverse motor 1202 is fixedly connected to a forward and reverse shaft 1209 via a coupling. A rotating rail 1203 is fixedly connected to the end of the forward and reverse shaft 1209.

[0073] Multiple mounting sleeves 1207 are fixedly connected to the outer wall of the rotating railing 1203, and a contact sensor 1205 is fixedly connected inside each mounting sleeve 1207.

[0074] Reference Figure 1 , Figure 3 , Figure 8 and Figure 9 In a preferred embodiment, the deflection adjustment mechanism 4 further includes:

[0075] The lifting frame 401 is fixedly connected to the platform 3 near the bottom end, and the top of the lifting frame 401 is fixedly connected to the support plate 402;

[0076] Two shaft plates 409 are symmetrically distributed on the top of the support plate 402. The two shaft plates 409 are connected to the same deflection shaft 408 on opposite sides via bearings. A deflection bracket 407 is fixedly connected to the outer wall of the deflection shaft 408 and is fixedly connected to the bottom of the deflection table 403.

[0077] Reference Figure 8 and Figure 9 In a preferred embodiment, the deflection adjustment mechanism 4 further includes:

[0078] Two mounting rods 404 are symmetrically distributed on the top of the support plate 402. Multiple deflection cylinders 405 are connected to the side walls of the two mounting rods 404 by hinges, and the output ends of the deflection cylinders 405 are connected to the bottom of the deflection table 403 by hinges.

[0079] Two integrated rods 410 are fixedly connected to the top of the support plate 402 away from the deflection frame 407. The top of the integrated rods 410 are fixedly connected with shock-absorbing spring rods 406 at equal intervals, and the ends of the shock-absorbing spring rods 406 are fixedly connected to the bottom of the deflection table 403.

[0080] Specifically, when welding aerospace mechanical parts, if the angle of the parts needs to be adjusted, the deflection cylinder 405 is adjusted to drive the deflection table 403 to deflect the angle, and the robotic arm 11 drives the laser welding head 10 to make corresponding adjustments. The two work together to achieve precise adjustment of the angle of the aerospace mechanical parts, thereby improving the accuracy of the welding point.

[0081] It should be noted that when the deflection cylinder 405 adjusts the angle of the deflection table 403, the damping spring rod 406 is in a stretched or compressed state. The damping spring rod 406 reduces the vibration impact on the deflection table 403 during the angle adjustment process, thereby improving the stability of the clamped aerospace mechanical parts.

[0082] Reference Figure 1 and Figure 3 In a preferred embodiment, the bottom of the deflection table 403 near both ends is fixedly connected to a side frame 15, and a positioning cylinder 7 is fixedly connected to the opposite side of the two side frames 15. The output ends of the two positioning cylinders 7 are fixedly connected to one side of the adjacent moving plate 18.

[0083] Reference Figure 1 , Figure 3 and Figure 5 In a preferred embodiment, rotating ring rails 2 are fixedly connected to opposite sides of the two movable plates 18, and rotating sliders 21 are slidably connected to the two rotating ring rails 2. A rotating connecting frame 22 is fixedly connected to the outer wall of the rotating slider 21. Hydraulic cylinders 24 are fixedly connected at equal distances to opposite sides of the two fixed frames 17 located on the same clamping frame 16. The output ends of the multiple hydraulic cylinders 24 located on the same fixed frame 17 are fixedly connected to the same positioning pressure plate 19. Protective pads 20 are provided on opposite sides of the two positioning pressure plates 19.

[0084] Reference Figure 1 and Figure 2In a preferred embodiment, it further includes:

[0085] Rack 1;

[0086] Robotic arm 11 is mounted on frame 1;

[0087] End frame 9 is fixedly connected to the output end of robotic arm 11, and laser welding head 10 is mounted on end frame 9;

[0088] Mounting bracket 8 is fixedly connected to one side of end bracket 9, and visual positioning module 13 is fixedly connected to the outer side wall of mounting bracket 8 facing downward.

[0089] Cooling mechanism 14 is disposed on end frame 9. Cooling mechanism 14 includes external frame 1401, and external frame 1401 is fixedly connected to the side wall of end frame 9.

[0090] Reference Figure 1 , Figure 2 and Figure 10 In a preferred embodiment, the cooling mechanism 14 further includes:

[0091] Two hangers 1409 are symmetrically distributed at the bottom of the outer frame 1401;

[0092] An annular air pipe 1402 is fixedly connected to the bottom end of two hanging rods 1409. Cooling air holes 1403 are opened on the outer side wall of the annular air pipe 1402 facing downward.

[0093] Reference Figure 10 In a preferred embodiment, the cooling mechanism 14 further includes:

[0094] The pump ring frame 1408 is fixedly connected to the external frame 1401. An air pump 1407 is fixedly connected in the pump ring frame 1408. The air delivery end of the air pump 1407 is connected to the inside of the annular air pipe 1402 through a pipe.

[0095] The connecting plate 1404 is fixedly connected to one side of the end frame 9. The top of the connecting plate 1404 is fixedly connected to the air storage tank 1405. The air inlet end of the air pump 1407 is fixedly connected to the air guide pipe 1406. One end of the air guide pipe 1406 is connected to the air delivery end of the air storage tank 1405.

[0096] Specifically, when the laser welding head 10 is performing splicing operations on aerospace mechanical parts, the air pump 1407 is started. The air pump 1407 introduces the protective gas inside the air storage tank 1405 into the annular air pipe 1402, and sprays it onto the weld pool through the cooling air hole 1403. The protective gas accelerates the cooling of the weld pool, and at the same time, the protective gas has an anti-oxidation protective effect on the weld pool.

[0097] Working Principle: During use, the aircraft mechanical parts are placed between two positioning plates 19. The hydraulic cylinder 24 is adjusted to drive the positioning plates 19 to clamp the aircraft mechanical parts. The protective pad 20 reduces frictional damage between the aircraft mechanical parts and the positioning plates 19. After the parts are positioned, the forward and reverse motor 1202 is started. The forward and reverse motor 1202 drives the rotating rail 1203 to rotate between the two aircraft mechanical parts. Then, the unfolding cylinder 1211 is adjusted to drive the extended inner slide rod 1204 to slide into the unfolding column 1201. When the contact sensor 1205 contacts the welding point of the aircraft mechanical parts, the forward and reverse motor 1202 drives the rotating rail 1203 to reset. At this time, the contact plate 1206 and the welding point of the aircraft mechanical parts are on the same plane. The positioning cylinder 7 is then adjusted to drive the two aircraft mechanical parts to mate. When the welding points of the two aircraft mechanical parts contact, the two contact plates 1206 also contact. When the pressure sensor 1214 detects… When the pressure changes, the positioning cylinder 7 stops operating, and the welding points of the two aerospace mechanical parts are completed. At this time, the deployment cylinder 1211 drives the contact plate 1206 to move away from the welding point of the aerospace mechanical parts. The robotic arm 11 drives the laser welding head 10 to the welding point through the vision positioning module 13. The laser welding head 10 begins to perform welding operations at the welding point. During the welding process, the air pump 1407 is started. The air pump 1407 introduces the protective gas inside the air tank 1405 into the annular air pipe 1402 and sprays it onto the weld pool through the cooling air hole 1403. The protective gas accelerates the cooling of the weld pool. After welding in a single direction is completed, if the angle of the aerospace mechanical parts needs to be adjusted, the deflection cylinder 405 drives the deflection table 403 to deflect the angle. The robotic arm 11 drives the laser welding head 10 to make corresponding adjustments. The two work together to achieve precise adjustment of the angle of the aerospace mechanical parts. The above operations are repeated to continue welding.

[0098] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-angle welding device for aerospace mechanical parts, characterized in that, include: Stand (3); The welding table (5) is fixedly connected to the frame (3); The deflection adjustment mechanism (4) is located in the middle of the welding table (5). The deflection adjustment mechanism (4) includes a deflection table (403), and a positioning groove (6) is opened on the top of the deflection table (403). Two symmetrically distributed positioning sliders (23) are slidably connected on the positioning groove (6). Two movable plates (18) are fixedly connected to the top of adjacent positioning sliders (23), one of the movable plates (18) is fixedly connected to a drive motor (25), and the output shaft of the drive motor (25) is fixedly connected to a drive shaft (26) through a coupling. The other movable plate (18) has an end docking shaft connected to the side facing the drive shaft (26) through a bearing. Two rotating connecting frames (22) are fixedly connected to the ends of the drive shaft (26) and the end docking shaft, respectively; Two clamping frames (16) are fixedly connected to one side of an adjacent rotating link (22), and fixed frames (17) are fixedly connected to the top and bottom of the two clamping frames (16). The anti-pinch mechanism (12) is set on the fixed frame (17) above the two clamping frames (16). The anti-pinch mechanism (12) includes an unfolding column (1201) and the unfolding column (1201) is fixedly connected to the top of the fixed frame (17) above.

2. The multi-angle welding equipment for aerospace mechanical parts according to claim 1, characterized in that, The anti-crush mechanism (12) further includes: An extended inner slide rod (1204) is slidably connected to a groove opened at one end of the unfolding column (1201), and a movable outer ring (1210) is fixedly connected to the outer side wall of the extended inner slide rod (1204). A fixed ring (1212) is fixedly connected to the outer wall of the unfolding column (1201). An unfolding cylinder (1211) is fixedly connected to the side of the fixed ring (1212) facing the moving outer ring (1210). The output end of the unfolding cylinder (1211) is fixedly connected to one side of the moving outer ring (1210). A docking plate (1208) is fixedly connected to the end of the extended inner slide bar (1204) away from the unfolding column (1201). The docking plate (1208) has an installation groove on the side away from the unfolding column (1201). A pressure sensor (1214) is fixedly connected to the inner wall of the installation groove. Telescopic connecting rods (1213) are distributed in a ring inside the installation groove outside the pressure sensor (1214). The ends of multiple telescopic connecting rods (1213) are fixedly connected to the same contact plate (1206). The contact plate (1206) is in contact with the pressure sensor (1214).

3. The multi-angle welding equipment for aerospace mechanical parts according to claim 2, characterized in that, The anti-crush mechanism (12) further includes: The motor plate (1215) is fixedly connected to the outer wall of the extended inner slide bar (1204); A forward and reverse motor (1202) is fixedly connected to one side of a motor plate (1215). The output shaft of the forward and reverse motor (1202) is fixedly connected to a forward and reverse shaft (1209) via a coupling. A rotating rail (1203) is fixedly connected to the end of the forward and reverse shaft (1209). Multiple mounting sleeves (1207) are fixedly connected to the outer wall of the rotating railing (1203), and a contact sensor (1205) is fixedly connected inside each mounting sleeve (1207).

4. The multi-angle welding equipment for aerospace mechanical parts according to claim 1, characterized in that, The deflection adjustment mechanism (4) further includes: The lifting frame (401) is fixedly connected to the platform (3) near the bottom end, and the top of the lifting frame (401) is fixedly connected to the support plate (402). Two shaft plates (409) are symmetrically distributed on the top of the support plate (402). The two shaft plates (409) are connected to the same deflection shaft (408) on opposite sides by bearings. A deflection bracket (407) is fixedly connected to the outer wall of the deflection shaft (408). The deflection bracket (407) is fixedly connected to the bottom of the deflection table (403).

5. The multi-angle welding equipment for aerospace mechanical parts according to claim 4, characterized in that, The deflection adjustment mechanism (4) further includes: Two mounting rods (404) are symmetrically distributed on the top of the support plate (402). Multiple deflection cylinders (405) are connected to the side walls of the two mounting rods (404) by hinges, and the output ends of the deflection cylinders (405) are connected to the bottom of the deflection table (403) by hinges. Two integrated rods (410) are fixedly connected to the top of the support plate (402) away from the deflection frame (407). The top of the integrated rods (410) is fixedly connected with shock-absorbing spring rods (406) at equal distances, and the ends of the shock-absorbing spring rods (406) are fixedly connected to the bottom of the deflection table (403).

6. The multi-angle welding equipment for aerospace mechanical parts according to claim 1, characterized in that, The deflection table (403) is fixedly connected to the bottom of both ends with side frames (15), and the opposite side of the two side frames (15) is fixedly connected to a positioning cylinder (7). The output end of the two positioning cylinders (7) is fixedly connected to one side of the adjacent moving plate (18).

7. The multi-angle welding equipment for aerospace mechanical parts according to claim 6, characterized in that, Two movable plates (18) are fixedly connected to a rotating ring rail (2) on opposite sides, and a rotating slider (21) is slidably connected to both rotating ring rails (2). A rotating frame (22) is fixedly connected to the outer wall of the rotating slider (21). Two fixed frames (17) on the same clamping frame (16) are fixedly connected to hydraulic cylinders (24) at equal distances on opposite sides. The output ends of multiple hydraulic cylinders (24) on the same fixed frame (17) are fixedly connected to the same positioning pressure plate (19). Protective pads (20) are provided on opposite sides of the two positioning pressure plates (19).

8. The multi-angle welding equipment for aerospace mechanical parts according to claim 1, characterized in that, Also includes: Rack (1); A robotic arm (11) is mounted on a frame (1); An end frame (9) is fixedly connected to the output end of the robotic arm (11), and a laser welding head (10) is mounted on the end frame (9). Mounting bracket (8) is fixedly connected to one side of end frame (9), and a visual positioning module (13) is fixedly connected to the outer side wall of the mounting bracket (8) facing downward. A cooling mechanism (14) is provided on the end frame (9). The cooling mechanism (14) includes an external frame (1401), and the external frame (1401) is fixedly connected to the side wall of the end frame (9).

9. A multi-angle welding device for aerospace mechanical parts according to claim 8, characterized in that, The cooling mechanism (14) further includes: Two booms (1409) are symmetrically distributed at the bottom of the outer frame (1401); An annular air pipe (1402) is fixedly connected to the bottom end of two hanging rods (1409), and cooling air holes (1403) are opened on the outer side wall of the annular air pipe (1402) facing downward.

10. A multi-angle welding device for aerospace mechanical parts according to claim 9, characterized in that, The cooling mechanism (14) further includes: A pump ring frame (1408) is fixedly connected to an external frame (1401). An air pump (1407) is fixedly connected in the pump ring frame (1408). The air delivery end of the air pump (1407) is connected to the inside of an annular air pipe (1402) through a pipe. A connecting plate (1404) is fixedly connected to one side of the end frame (9). A gas storage tank (1405) is fixedly connected to the top of the connecting plate (1404). A gas guide pipe (1406) is fixedly connected to the air inlet end of the air pump (1407). One end of the gas guide pipe (1406) is connected to the gas delivery end of the gas storage tank (1405).

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