Automatic welding tool for conical section skin component

Abstract

The automatic welding tool comprises a portal frame and a supporting column A vertically arranged at the bottom of the right end of the portal frame, a supporting column B is vertically welded to the bottom of the left end of the portal frame, fixing bases are welded to the bottoms of the supporting column A and the supporting column B, and a transverse moving machine base is arranged outside the portal frame. A lifting air cylinder is arranged at the front end of the transverse moving machine base, a novel auxiliary welding device is additionally arranged outside the lifting air cylinder of the automatic welding tool for the conical section skin component, and the conical section skin component is conical, so that the auxiliary welding device can push the two clamping rollers to clamp the two sides of a welding position respectively; due to the limitation of the conical shape of the conical section skin component, the clamping rollers tightly pressed and attached to the arc-shaped outer walls on the two sides of the welding position can prevent the conical section skin component from rotating and can also prevent the conical section skin component from slightly displacing, and therefore it is guaranteed that the laser welding head can accurately conduct welding machining on the welding position.

Description

Technical Field

[0001] The utility model belongs to the technical field related to welding tools, and in particular relates to an automatic welding tool for a cone-segment skin component. Background Art

[0002] The cone skin automatic welding tool is an automated production tool used in aircraft manufacturing, mainly used for welding aircraft cone skin parts. It can automatically control the welding process, improve production efficiency and product quality, and reduce production costs and manual operation risks. The tool has a complex structure and is usually composed of a welding gun, a transmission mechanism, a control system, etc. It can automatically adjust and operate according to production requirements.

[0003] However, when the automatic welding tooling for the cone-section skin component is working, it is necessary to fix the cone-section skin component through a pushing mechanism, and then the pushing mechanism pushes the cone-section skin component to the lower side of the welding point and pushes it forward at a uniform speed. During the uniform pushing process, the welding head will perform welding processing on the welding point, and in the process of pushing the cone-section skin component, the pushing mechanism may easily cause a slight angular deflection and displacement of the cone-section skin component on the pushing mechanism, which will cause the welding position of the cone-section skin component to deviate from the welding head, resulting in welding failure. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic welding tool for conical skin components, so as to solve the problem that the propulsion mechanism proposed in the above background technology, in the process of pushing the conical skin components, is prone to cause slight angular deflection and displacement of the conical skin components on the propulsion mechanism, which will cause the welding position of the welding head to the conical skin components to deviate, resulting in welding failure.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic welding tool for a cone segment skin component, comprising a gantry and a pillar A vertically arranged at the bottom of the right end of the gantry, a pillar B vertically welded to the bottom of the left end of the gantry, a fixed base welded to the bottom of the pillar A and the pillar B, a transverse machine base is arranged outside the gantry, a lifting cylinder is arranged at a vertical angle at the front end of the transverse machine base, a lifting shaft is arranged inside the lifting cylinder, a laser welder is arranged at the lower end of the lifting shaft, and an auxiliary welding device is arranged outside the bottom end of the lifting cylinder;

[0006] The auxiliary welding device includes a lifting rod, a lifting hole, a fixed bracket and a fixed sleeve. The fixed sleeve is fixed to the outside of the bottom end of the lifting cylinder in a sleeve-connected manner. Fixed brackets are welded on both ends of the left and right ends of the fixed sleeve, and the two fixed brackets are arranged in a horizontal state. Lifting holes are vertically arranged inside the other ends of the two fixed brackets, and lifting rods are vertically inserted in the two lifting holes. The two lifting rods are respectively located on the outside of the left and right sides of the laser welder, and the lifting rods can move up and down in the lifting holes.

[0007] Preferably, the auxiliary welding device also includes a spring retaining ring, a compression spring and an anti-slip baffle. Two spring retaining rings are provided, and the two spring retaining rings are respectively fixed on the lower outside of the center of the two lifting rods. A compression spring is provided between the spring retaining ring and the fixed bracket, and the compression spring is sleeved on the outside of the lifting rod. An anti-slip baffle is provided at the top of the lifting rod, and the diameter of the anti-slip baffle is larger than the diameter of the lifting hole.

[0008] Preferably, the auxiliary welding device also includes two clamping rollers and two U-shaped roller frames, and the two U-shaped roller frames are opened downward and are respectively welded to the lower ends of the two lifting rods. Clamping rollers are arranged inside the openings of the two U-shaped roller frames, and one-third of the lower end of the clamping roller is exposed outside the lower end of the U-shaped roller frame.

[0009] Preferably, the clamping roller is rotatably connected to the U-shaped roller frame via a rotating shaft, and the clamping roller can rotate clockwise or counterclockwise in the U-shaped roller frame via the rotating shaft. The clamping roller is made of plastic material, and an anti-slip coating is sprayed on the outer wall of the clamping roller.

[0010] Preferably, a plurality of cylinder fixing frames are sleeved on the outside of the lifting cylinder, and both ends of the plurality of cylinder fixing frames are fixedly connected to the transverse moving machine base by screws, and an external air nozzle is arranged at the top end of the lifting cylinder.

[0011] Preferably, a displacement motor is provided on the outer wall of the lower right end at the center of the transverse moving machine base, and the displacement motor can drive the transverse moving machine base to move left and right outside the gantry through gears, and a laser welding head is provided at the bottom of the laser welder.

[0012] Compared with the prior art, the utility model provides an automatic welding tool for cone-segment skin components, which has the following beneficial effects:

[0013] The utility model adds a novel auxiliary welding device to the outside of the lifting cylinder of the automatic welding tooling of the cone-section skin component. When the laser welder welds the cone-section skin component through the laser welding head at the bottom, the auxiliary welding device will be pressed from top to bottom on the outside of the left and right ends of the welding point through two clamping rollers. As the propulsion mechanism pushes the cone-section skin component forward at a uniform speed, the auxiliary welding device will continuously generate downward clamping pressure on the two clamping rollers. Because the cone-section skin component is conical, the two clamping rollers are respectively clamped on both sides of the welding point. Due to the conical shape of the cone-section skin component, the clamping rollers pressed against the arc-shaped outer walls on both sides of the welding point will prevent the cone-section skin component from rotating, and can also prevent the cone-section skin component from slightly displacing, thereby ensuring that the laser welding head can accurately perform welding processing on the welding point and avoiding the deviation of the welding position caused by the angle deflection and displacement of the cone-section skin component. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a schematic diagram of the overall planar structure of an automatic welding tool for a cone-segment skin component.

[0015] Figure 2 The utility model is a schematic diagram of the partial plane structure of an automatic welding tool for a cone-segment skin component.

[0016] Figure 3 It is a schematic diagram of the planar structure of the auxiliary welding device of the utility model.

[0017] In the figure: 1. Pillar A; 2. Fixed base; 3. Pillar B; 4. Gantry; 5. Transverse machine base; 6. Lifting cylinder; 7. Lifting shaft; 8. Laser welder; 9. Auxiliary welding device; 10. Laser welding head; 11. Cylinder fixing frame; 12. Displacement motor; 13. External air nozzle; 14. Clamping roller; 15. U-shaped roller frame; 16. Lifting rod; 17. Spring retaining ring; 18. Compression spring; 19. Lifting hole; 20. Fixed bracket; 21. Fixed sleeve; 22. Anti-slip baffle. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] The utility model provides Figure 1-3The shown automatic welding tooling for a conical skin component comprises a gantry 4 and a pillar A1 vertically arranged at the bottom of the right end of the gantry 4, a pillar B3 is vertically welded to the bottom of the left end of the gantry 4, and a fixed base 2 is welded to the bottom of the pillar A1 and the pillar B3, a transverse machine base 5 is arranged outside the gantry 4, a lifting cylinder 6 is arranged at the front end of the transverse machine base 5, and the lifting cylinder 6 is arranged at a vertical angle, a lifting shaft 7 is arranged inside the lifting cylinder 6, and a laser welder 8 is arranged at the lower end of the lifting shaft 7, a plurality of cylinder fixing frames 11 are sleeved on the outside of the lifting cylinder 6, and both ends of the plurality of cylinder fixing frames 11 are fixedly connected to the transverse machine base 5 by screws, an external air nozzle 13 is arranged at the top of the lifting cylinder 6, a displacement motor 12 is arranged on the outer wall of the lower right end at the center of the transverse machine base 5, and the displacement motor 12 can drive the transverse machine base 5 to move left and right outside the gantry 4 through gears, and a laser welding head is arranged at the bottom of the laser welder 8. 10. When using the automatic welding tooling for the cone-section skin component, it is first necessary to fix the cone-section skin component to the propulsion mechanism, and then push the propulsion mechanism to the lower side of the gantry 4. Then it is necessary to set the welding mode of the automatic welding tooling for the cone-section skin component, and start the propulsion mechanism so that the propulsion mechanism pushes the cone-section skin component forward at a uniform speed. At the same time, the displacement motor 12 will drive the transverse machine base 5 to move left and right on the gantry 4 through the gear, ensuring that the laser welding head 10 at the bottom of the laser welder 8 is aligned with the welding point of the cone-section skin component, and then the lifting cylinder 6 pushes the laser welder 8 downward through the lifting shaft 7, so that the laser welding head 10 drops to the optimal welding height. As the propulsion mechanism pushes the cone-section skin component forward at a uniform speed, the laser welding head 10 will continue to perform laser welding processing on the welding point until the cone-section skin component completely passes through the gantry 4, thereby automatically completing the laser welding processing of the cone-section skin component.

[0020] like Figure 1 and Figure 3As shown, an auxiliary welding device 9 is arranged outside the bottom end of the lifting cylinder 6, and the auxiliary welding device 9 includes a lifting rod 16, a lifting hole 19, a fixed bracket 20 and a fixed sleeve 21. The fixed sleeve 21 is fixed to the outside of the bottom end of the lifting cylinder 6 in a sleeve-connected manner. The fixed brackets 20 are welded on both ends of the left and right ends of the fixed sleeve 21, and the two fixed brackets 20 are arranged in a horizontal state. The other ends of the two fixed brackets 20 are vertically arranged inside, and the lifting holes 19 are vertically inserted into the two lifting holes 19. The two lifting rods 16 are respectively located on the left and right sides of the laser welder 8. The lifting rods 16 can move up and down in the lifting holes 19. The auxiliary welding device 9 also includes a spring retaining ring 17, a compression spring 18 and an anti-slip baffle 22 There are two spring retaining rings 17, which are respectively fixed to the lower outside of the center of the two lifting rods 16. A compression spring 18 is arranged between the spring retaining ring 17 and the fixed bracket 20, and the compression spring 18 is sleeved on the outside of the lifting rod 16. An anti-slip baffle 22 is arranged at the top of the lifting rod 16, and the diameter of the anti-slip baffle 22 is larger than the diameter of the lifting hole 19. The auxiliary welding device 9 also includes two clamping rollers 14 and two U-shaped roller frames 15. The two U-shaped roller frames 15 are both welded to the lower ends of the two lifting rods 16 with their openings facing downward. The openings of the two U-shaped roller frames 15 are both provided with clamping rollers 14, and one-third of the lower end of the clamping roller 14 is exposed outside the lower end of the U-shaped roller frame 15.

[0021] like Figure 1 and Figure 3 As shown, the clamping roller 14 is rotatably connected to the U-shaped roller frame 15 through a rotating shaft, and the clamping roller 14 can rotate clockwise or counterclockwise in the U-shaped roller frame 15 through the rotating shaft. The clamping roller 14 is made of plastic material, and the outer wall of the clamping roller 14 is also sprayed with an anti-skid coating. When the propulsion mechanism pushes the cone segment skin component to the bottom of the laser welder 8, the first welded part is the cone head end of the cone segment skin component, and the compression spring 18 between the spring retaining ring 17 and the fixed bracket 20 will push the spring retaining ring 17 downward by elastic force, which will push the lifting rod 16 downward, so that the lifting rod 16 moves downward through the lifting hole 19 inside the fixed bracket 20. The U-shaped roller frame 15 moves, thereby pressing the clamping roller 14 inside the U-shaped roller frame 15 against the outer walls on both sides of the welding point of the conical skin component, and the compression spring 18 will continue to apply a clamping force, so that the two clamping rollers 14 are firmly pressed against the arc-surface outer walls on both sides of the top end of the conical skin component, so that the clamping rollers 14 are firmly clamped on both sides of the welding point, and as the propulsion mechanism pushes the conical skin component forward, the two clamping rollers 14 will continue to clamp on both sides of the welding point, which will prevent the conical skin component from generating angular deflection and displacement when moving forward, thereby ensuring that the laser welding head 10 can accurately perform welding processing on the welding point of the conical skin component.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic welding tool for a cone segment skin component, comprising a gantry (4) and a pillar A (1) vertically arranged at the bottom of the right end of the gantry (4), a pillar B (3) vertically welded to the bottom of the left end of the gantry (4), a fixed base (2) welded to the bottom of the pillar A (1) and the pillar B (3), a transverse machine base (5) is arranged outside the gantry (4), a lifting cylinder (6) is arranged at a vertical angle at the front end of the transverse machine base (5), a lifting shaft (7) is arranged inside the lifting cylinder (6), and a laser welder (8) is arranged at the lower end of the lifting shaft (7), characterized in that: An auxiliary welding device (9) is arranged outside the bottom end of the lifting cylinder (6); The auxiliary welding device (9) comprises a lifting rod (16), a lifting hole (19), a fixed bracket (20) and a fixed sleeve (21); the fixed sleeve (21) is fixed to the outside of the bottom end of the lifting cylinder (6) in a sleeve-connected manner; the fixed brackets (20) are welded to the left and right ends of the fixed sleeve (21); and the two fixed brackets (20) are arranged in a horizontal state; the other ends of the two fixed brackets (20) are vertically arranged inside; the two lifting holes (19) are vertically inserted with lifting rods (16); the two lifting rods (16) are respectively located on the outside of the left and right sides of the laser welder (8); and the lifting rods (16) can move up and down in the lifting holes (19).

2. The automatic welding tool for cone-segment skin components according to claim 1, characterized in that: The auxiliary welding device (9) further comprises a spring retaining ring (17), a compression spring (18) and an anti-slipping baffle (22). Two spring retaining rings (17) are provided. The two spring retaining rings (17) are respectively fixed to the lower outer side of the center of two lifting rods (16). A compression spring (18) is provided between the spring retaining ring (17) and the fixed bracket (20), and the compression spring (18) is sleeved on the outside of the lifting rod (16). An anti-slipping baffle (22) is provided at the top end of the lifting rod (16), and the diameter of the anti-slipping baffle (22) is greater than the diameter of the lifting hole (19).

3. The automatic welding tool for cone-segment skin components according to claim 2, characterized in that: The auxiliary welding device (9) further comprises two clamping rollers (14) and two U-shaped roller frames (15), the two U-shaped roller frames (15) are both welded to the lower ends of the two lifting rods (16) with their openings facing downwards, the clamping rollers (14) are both arranged inside the openings of the two U-shaped roller frames (15), and one third of the lower ends of the clamping rollers (14) are exposed outside the lower ends of the U-shaped roller frames (15).

4. The automatic welding tool for cone-segment skin components according to claim 3 is characterized in that: The clamping roller (14) is rotatably connected to the U-shaped roller frame (15) via a rotating shaft, and the clamping roller (14) can rotate clockwise or counterclockwise in the U-shaped roller frame (15) via the rotating shaft. The clamping roller (14) is made of plastic material, and an anti-slip coating is sprayed on the outer wall of the clamping roller (14).

5. The automatic welding tool for cone-segment skin components according to claim 1, characterized in that: The lifting cylinder (6) is externally sleeved with a plurality of cylinder fixing frames (11), and both ends of the plurality of cylinder fixing frames (11) are fixedly connected to the transverse machine base (5) via screws, and an external air nozzle (13) is disposed at the top end of the lifting cylinder (6).

6. The automatic welding tool for cone-segment skin components according to claim 1, characterized in that: A displacement motor (12) is arranged on the outer wall of the lower right end at the center of the transverse moving machine base (5), and the displacement motor (12) can drive the transverse moving machine base (5) to move left and right outside the gantry (4) through gears. A laser welding head (10) is arranged at the bottom of the laser welder (8).

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