Forming and welding equipment for metal outer shell of visitor machine

Abstract

The invention discloses forming and welding equipment for a metal outer shell of a visitor machine, and relates to the technical field of welding. The problems of welding quality and welding efficiency are solved. The device specifically comprises a welding mechanical arm and a fixing rack matched with the welding mechanical arm, and the fixing rack comprises a bottom frame, side frames arranged at the tops of the two ends of the bottom frame and a mounting bearing plate arranged between the two side frames and used for limiting and fixing an outer shell; the welding mechanical arm comprises a base, a rotating joint arranged at the top of the base and a plurality of rotating arms arranged at the rotating end of the rotating joint step by step, and a welding gun used for welding the outer shell is arranged at the end of the last-stage rotating arm. Through cooperation of the welding mechanical arm and the fixing racks, automatic welding operation can be achieved, so that the welding quality and the welding efficiency can be guaranteed, and through arrangement of the multiple sets of fixing racks, the working procedures of feeding, welding and discharging can be conducted in a crossed mode, and the welding efficiency is further improved.

Description

Technical Field

[0001] This invention relates to the field of welding technology, and in particular to welding equipment for forming metal housings for visitor aircraft. Background Technology

[0002] A visitor registration and management terminal (or visitor management system) is an intelligent device widely used in enterprises, parks, office buildings, and other locations to achieve visitor identification, registration, authorization, and management. It typically consists of the following parts: a metal structural housing, a human-computer interaction module, a control and computing module, and auxiliary function modules. The manufacturing quality of the metal structural housing directly determines the overall stability, safety, appearance quality, and service life of the device. The housing is usually assembled from multiple sheet metal parts formed by stamping and bending. Welding is currently the most important and indispensable process for connecting these separate sheet metal parts into a sturdy and sealed whole. However, the welding production of visitor aircraft housings, especially for flexible manufacturing demands involving diverse product types and small batches, still faces significant challenges. Traditional welding methods (such as manual argon arc welding and spot welding) or specialized machines with low levels of automation generally suffer from low efficiency, high dependence on operator skills, difficulty in controlling welding thermal deformation, poor weld consistency, and complex debugging when changing production between different product models. This results in high production costs, large fluctuations in product yield, and difficulty in standardizing appearance quality, making it difficult to adapt to the modern manufacturing trends of high-end, large-scale, and flexible manufacturing.

[0003] Therefore, there is an urgent need to develop a new type of highly automated and intelligent special forming and welding equipment to solve the above-mentioned technical bottlenecks and achieve high-quality, high-efficiency, and high-consistency flexible manufacturing of the metal shell of the visitor aircraft. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a metal casing forming and welding device for visitor aircraft.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A welding equipment for forming the metal shell of a visitor aircraft includes a welding robotic arm and a fixed frame that cooperates with the welding robotic arm. The fixed frame includes a base frame, side frames disposed at the top of both ends of the base frame, and a mounting bearing plate disposed between the two side frames for limiting and fixing the outer shell. The welding robotic arm includes a base, a rotary joint disposed on the top of the base, and multiple rotary arms disposed at the rotating ends of the rotary joint in succession. The end of the last rotary arm is provided with a welding gun for welding the outer shell.

[0006] Preferably, the number of fixed platforms is greater than or equal to two, and they are arranged in a circular array around the welding robot arm.

[0007] Furthermore, a bearing seat is provided inside the upper part of each of the two side frames. A rotating shaft is rotatably connected to the inner side of the bearing seat through a bearing. The other end of the rotating shaft is connected to a mounting bearing plate for limiting and fixing the outer shell through a flange assembly. A motor is fixed inside one of the side frames, and the output shaft of the motor is fixed to the end of one of the rotating shafts.

[0008] Based on the aforementioned scheme: the outer wall of the mounting bearing plate is provided with multiple clamping components for clamping and fixing the outer shell.

[0009] A preferred embodiment of the aforementioned solution is as follows: the clamping component includes a clamping base and a clamping arm and a rotating handle rotatably connected to the clamping base. The bottom of the clamping base is fixed to a platform by bolts, and the bottom of the platform is fixed to the surface of the mounting bearing plate by bolts. The other end of the clamping arm is provided with a chuck that contacts the outer shell and clamps the outer shell. The inner side of the rotating handle is rotatably connected to a connecting rod, and the other end of the connecting rod is rotatably connected to the side wall of the clamping arm.

[0010] As a further aspect of the present invention: the end of the clamping arm is provided with a waist-shaped hole, a screw rod passes through the interior of the universal ball joint, the clamp is fixed to the bottom of the screw rod, and the outer walls of the screw rod on both sides of the waist-shaped hole are connected to fastening nuts by threads, and a washer is provided between the fastening nut and the waist-shaped hole.

[0011] Meanwhile, the outer wall of the mounting plate is provided with multiple limiting arms for clamping and fixing the outer shell.

[0012] As a preferred embodiment of the present invention: the limiting arm includes a telescopic joint and universal ball joints disposed on both sides of the telescopic joint. One end of the telescopic joint is connected to a second base through the universal ball joint. The second base is fixed to the outer wall of the mounting bearing plate by bolts. The other end of the telescopic joint is connected to an internal threaded seat through the universal ball joint, and the internal threaded seat is used in conjunction with a threaded pin.

[0013] Meanwhile, the expansion joint includes two threaded rods and an internally threaded cylinder connected to the outer wall of the two threaded rods by threads of opposite direction, and a locking nut is threadedly connected to the outer wall of each threaded rod.

[0014] As a preferred embodiment of the present invention: the universal joint includes a ball ring and a ball head movably disposed inside the ball ring, the opening of the ball ring is provided with a plurality of contraction grooves, and the outer wall of the ball ring located at the contraction groove is provided with a clamp.

[0015] The beneficial effects of this invention are as follows: 1. This invention enables automated welding operations through the cooperation of a welding robotic arm and a fixed platform, thereby ensuring welding quality and efficiency. Furthermore, by setting up multiple fixed platforms, the loading, welding, and unloading processes can be carried out simultaneously, further improving welding efficiency.

[0016] 2. In this invention, by setting the mounting support plate and the side frame to be rotatably connected, and the rotation being controlled by an electric motor, the outer shell itself can also have a degree of rotational freedom, thereby further increasing the degree of freedom of relative movement between the outer shell and the welding gun, and improving the welding quality.

[0017] 3. This invention uses multiple clamping components to clamp the outer shell. While ensuring reliable positioning, the multi-point clamping method can also reduce the specific clamping stress and is relatively convenient to operate. At the same time, the clamping head and the clamping arm are positioned by using washers and fastening nuts, which allows the position of the clamping head relative to the clamping arm to be changed, thereby increasing the flexibility of clamping position adjustment.

[0018] 4. This invention sets up multiple limiting arms and uses the limiting and fixing holes reserved in the sheet metal stamping itself to limit the outer shell. In addition, each limiting arm can move in all directions and extend and retract, so as to ensure that the fixing and limiting of different models of outer shells can be adjusted accordingly. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the metal casing forming and welding equipment for visitor aircraft proposed in this invention; Figure 2 This is a schematic diagram of the fixed frame structure for the metal shell forming and welding equipment for visitor aircraft proposed in this invention; Figure 3 This is a schematic diagram of the welding robotic arm structure for the metal shell forming and welding equipment for visitor aircraft proposed in this invention; Figure 4 This is a schematic diagram of the outer shell fixing part in Embodiment 2 of the metal outer shell forming and welding equipment for visitor aircraft proposed in this invention; Figure 5 This is a schematic diagram of the clamping component structure for the metal casing forming and welding equipment for visitor aircraft proposed in this invention; Figure 6 This is a schematic diagram of the outer shell fixing part in Embodiment 3 of the metal outer shell forming and welding equipment for visitor aircraft proposed in this invention; Figure 7 This is a schematic diagram of the limiting arm structure for the metal shell forming and welding equipment for visitor aircraft proposed in this invention; Figure 8This is a schematic diagram of the universal ball joint structure for the metal shell forming and welding equipment for visitor aircraft proposed in this invention.

[0020] In the diagram: 1. Welding robotic arm; 2. Fixed platform; 3. Base frame; 4. Side frame; 5. Mounting bearing plate; 6. Motor; 7. Flange assembly; 8. Rotating shaft; 9. Bearing seat; 10. Base; 11. Rotary joint; 12. Rotating arm; 13. Welding gun; 14. Clamping component; 15. Chuck; 16. Screw; 17. Waist-shaped hole; 18. Gasket; 19. Fastening nut; 20. Clamping arm; 21. Rotating handle; 22. Connecting rod; 23. Clamping seat; 24. Platform one; 25. Limiting arm; 26. Platform two; 27. Universal ball joint; 28. Threaded rod; 29. ​​Locking nut; 30. Internal threaded cylinder; 31. Threaded pin; 32. Internal threaded seat; 33. Ball head; 34. Shrinkage groove; 35. Clamp; 36. Ball ring. Detailed Implementation

[0021] The technical solution of the present invention will be further described in detail below with reference to specific embodiments.

[0022] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] Example 1: Equipment for forming and welding metal casings for visitor aircraft, such as Figures 1-8 As shown, it includes a welding robotic arm 1 and a fixed platform 2 that cooperates with the welding robotic arm 1.

[0024] In this embodiment, the specific number of fixed platforms 2 is not limited. Since the shape of the outer shell is relatively complex, it takes a certain amount of time to load and unload the material. Therefore, in this embodiment, the number of fixed platforms 2 is preferably greater than or equal to two, and they are arranged in a circular array around the welding robot arm 1.

[0025] The fixed platform 2 includes a base frame 3, side frames 4 disposed at the top of both ends of the base frame 3, and an installation bearing plate 5 disposed between the two side frames 4 for limiting and fixing the outer shell.

[0026] The welding robotic arm 1 includes a base 10, a rotary joint 11 disposed on the top of the base 10, and a plurality of rotary arms 12 disposed at the rotating ends of the rotary joint 11 in succession. The end of the last rotary arm 12 is provided with a welding gun 13 for welding the outer shell.

[0027] This device, through the cooperation of welding robotic arm 1 and fixed platform 2, can realize automated welding operations, thereby ensuring welding quality and welding efficiency. Furthermore, by setting up multiple sets of fixed platforms 2, the loading, welding, and unloading processes can be carried out in parallel, further improving welding efficiency.

[0028] Both side frames 4 are equipped with bearing seats 9 inside. The inner side of the bearing seats 9 is rotatably connected to a rotating shaft 8 via a bearing. The other end of the rotating shaft 8 is connected to a mounting bearing plate 5 for limiting and fixing the outer shell via a flange assembly 7. A motor 6 is fixed inside one of the side frames 4, and the output shaft of the motor 6 is fixed to the end of one of the rotating shafts 8.

[0029] This device, by setting the mounting support plate 5 and the side frame 4 to be rotatably connected, and the rotation being driven and controlled by the motor 6, enables the outer shell itself to have a degree of rotational freedom, thereby further increasing the degree of freedom of relative movement between the outer shell and the welding gun 13 and improving the welding quality.

[0030] In this embodiment, the shell to be welded can be fixed on the mounting plate 5. Then, the running trajectory and operation program of the entire welding robot arm 1 are set according to the position to be welded. The welding gun 13 is driven to move and weld according to the preset trajectory by the rotation of the rotary joint 11 and the relative rotation of multiple rotary arms 12. During this welding process, the shell can be loaded onto another fixed platform 2 until the welding of the previous shell is completed. Then, the rotary joint 11 rotates to the side of the next fixed platform 2 that has been loaded and continues to perform welding operations. Then, the previously welded shell is unloaded and the next shell to be welded is loaded at the same time.

[0031] Example 2: Equipment for forming and welding metal casings for visitor aircraft, such as Figure 4 , Figure 5 As shown, in order to solve the problem of fixed positioning, this embodiment makes the following improvements based on embodiment 1: the outer wall of the mounting bearing plate 5 is provided with a plurality of clamping members 14 for clamping and fixing the outer shell.

[0032] The clamping member 14 includes a clamping base 23 and a clamping arm 20 and a rotating handle 21 rotatably connected to the clamping base 23. The bottom of the clamping base 23 is fixed to a platform 24 by bolts. The bottom of the platform 24 is fixed to the surface of the mounting support plate 5 by bolts. The other end of the clamping arm 20 is provided with a chuck 15 that contacts the outer shell and clamps the outer shell. The inner side of the rotating handle 21 is rotatably connected to a connecting rod 22. The other end of the connecting rod 22 is rotatably connected to the side wall of the clamping arm 20.

[0033] The end of the clamping arm 20 is provided with a waist-shaped hole 17. A screw 16 passes through the interior of the universal ball joint 27. The chuck 15 is fixed to the bottom of the screw 16. The outer walls of the screw 16 on both sides of the waist-shaped hole 17 are connected to fastening nuts 19 by threads. A washer 18 is provided between the fastening nut 19 and the waist-shaped hole 17.

[0034] In this embodiment, when the rotating handle 21 is rotated, it can drive the connecting rod 22 to move, thereby driving the clamping arm 20 to rotate relative to the clamping seat 23 through the connecting rod 22, thereby driving the chuck 15 to rotate to achieve clamping of the outer shell.

[0035] This device uses multiple clamping elements 14 to clamp the outer shell. While ensuring reliable positioning, the multi-point clamping method can also reduce the specific clamping stress and is relatively easy to operate. At the same time, the clamp 15 and the clamping arm 20 are positioned by the shim 18 and the fastening nut 19, which allows the position of the clamp 15 relative to the clamping arm 20 to be changed, thereby increasing the flexibility of clamping position adjustment.

[0036] Example 3: Equipment for forming and welding metal casings for visitor aircraft, such as Figures 6-8 As shown, in order to solve the problem of fixed positioning, this embodiment makes the following improvements based on embodiment 1: the outer wall of the mounting bearing plate 5 is provided with a plurality of limiting arms 25 for clamping and fixing the outer shell.

[0037] The limiting arm 25 includes a telescopic joint and universal ball joints 27 disposed on both sides of the telescopic joint. One end of the telescopic joint is connected to a second platform 26 through the universal ball joint 27. The second platform 26 is fixed to the outer wall of the mounting bearing plate 5 by bolts. The other end of the telescopic joint is connected to an internal thread seat 32 through the universal ball joint 27, and the internal thread seat 32 is used in conjunction with a threaded pin 31.

[0038] The expansion joint includes two threaded rods 28 and an internally threaded cylinder 30 connected to the outer wall of the two threaded rods 28 by threads of opposite direction, and a locking nut 29 is threadedly connected to the outer wall of each threaded rod 28.

[0039] The universal ball joint 27 includes a ball ring 36 and a ball head 33 movably disposed inside the ball ring 36. The opening of the ball ring 36 is provided with a plurality of contraction grooves 34, and the outer wall of the ball ring 36 located at the contraction grooves 34 is provided with a clamp 35.

[0040] In this embodiment, since the outer shell has pre-drilled limiting and fixing holes during the stamping and sheet metal forming process, the length and position of each limiting arm 25 are first adjusted by rotating the internal threaded cylinder 30 and the universal ball joint 27 according to the required limiting position of the outer shell and the position of the limiting and fixing holes, until the internal threaded seat 32 reaches the required limiting position. The universal ball joint 27 is then locked by the clamp 35, and the internal threaded cylinder 30 and the threaded rod 28 are locked by the locking nut 29. Then, the limiting and fixing holes of the outer shell are fitted into the threaded holes of the internal threaded seat 32, and the threaded pin 31 is inserted into the internal threaded seat 32. The internal threaded seat 32 and the threaded pin 31 are used to limit the two sides of the outer shell until all the limiting and fixing holes are fixed, and then the subsequent welding operation can be carried out.

[0041] This device, by setting multiple limiting arms 25, uses the limiting and fixing holes reserved in the sheet metal stamping itself to limit the outer shell. In addition, each limiting arm 25 can move in all directions and extend and retract, so that it can be adjusted in a targeted manner when fixing and limiting the outer shell of different models.

[0042] 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 welding equipment for forming the metal casing of a visitor terminal, comprising a welding robotic arm (1) and a fixed frame (2) cooperating with the welding robotic arm (1), characterized in that, The fixed frame (2) includes a base frame (3) and side frames (4) set at the top of both ends of the base frame (3), and an installation bearing plate (5) set between the two side frames (4) for limiting and fixing the outer shell. The welding robotic arm (1) includes a base (10), a rotary joint (11) disposed on the top of the base (10), and a plurality of rotary arms (12) disposed at the rotating ends of the rotary joint (11) in succession. The end of the last rotary arm (12) is provided with a welding gun (13) for welding the outer shell.

2. The equipment for forming and welding metal casings for visitor aircraft according to claim 1, characterized in that, The fixed platform (2) has two or more groups, which are arranged in a circular array around the welding robot arm (1).

3. The equipment for forming and welding the metal casing of a visitor terminal according to claim 1, characterized in that, Both of the side frames (4) are provided with bearing seats (9) inside. The inner side of the bearing seats (9) is rotatably connected to a rotating shaft (8) through a bearing. The other end of the rotating shaft (8) is connected to a mounting bearing plate (5) for limiting and fixing the outer shell through a flange assembly (7). A motor (6) is fixed inside one of the side frames (4). The output shaft of the motor (6) is fixed to the end of one of the rotating shafts (8).

4. The equipment for forming and welding the metal casing of a visitor terminal according to claim 1, characterized in that, The outer wall of the mounting bearing plate (5) is provided with a plurality of clamping parts (14) for clamping and fixing the outer shell.

5. The metal casing forming and welding equipment for visitor aircraft according to claim 4, characterized in that, The clamping member (14) includes a clamping seat (23) and a clamping arm (20) and a rotating handle (21) rotatably connected to the clamping seat (23). The bottom of the clamping seat (23) is fixed to a base (24) by bolts. The bottom of the base (24) is fixed to the surface of the mounting bearing plate (5) by bolts. The other end of the clamping arm (20) is provided with a chuck (15) that contacts the outer shell and clamps the outer shell. The inner side of the rotating handle (21) is rotatably connected to a connecting rod (22). The other end of the connecting rod (22) is rotatably connected to the side wall of the clamping arm (20).

6. The metal casing forming and welding equipment for visitor aircraft according to claim 5, characterized in that, The end of the clamping arm (20) is provided with a waist-shaped hole (17), and a screw (16) runs through the inside of the universal ball joint (27). The chuck (15) is fixed to the bottom of the screw (16), and the outer walls of the screw (16) on both sides of the waist-shaped hole (17) are connected by threads to fastening nuts (19). A washer (18) is provided between the fastening nut (19) and the waist-shaped hole (17).

7. The equipment for forming and welding metal casings for visitor aircraft according to claim 1, characterized in that, The outer wall of the mounting support plate (5) is provided with multiple limiting arms (25) for clamping and fixing the outer shell.

8. The metal casing forming and welding equipment for visitor aircraft according to claim 7, characterized in that, The limiting arm (25) includes a telescopic joint and universal ball joints (27) on both sides of the telescopic joint. One end of the telescopic joint is connected to a base (26) through the universal ball joint (27). The base (26) is fixed to the outer wall of the mounting bearing plate (5) by bolts. The other end of the telescopic joint is connected to an internal thread seat (32) through the universal ball joint (27). The internal thread seat (32) is used in conjunction with a threaded pin (31).

9. The metal casing forming and welding equipment for visitor aircraft according to claim 8, characterized in that, The expansion joint includes two threaded rods (28) and an internally threaded cylinder (30) connected to the outer wall of the two threaded rods (28) by threads of opposite direction, and a locking nut (29) is threadedly connected to the outer wall of each threaded rod (28).

10. The metal casing forming and welding equipment for visitor aircraft according to claim 8, characterized in that, The universal ball joint (27) includes a ball ring (36) and a ball head (33) movably disposed inside the ball ring (36). The opening of the ball ring (36) is provided with a plurality of contraction grooves (34), and the outer wall of the ball ring (36) located at the contraction grooves (34) is provided with a clamp (35).

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