Metal corrugated air pipe welding device

Abstract

The utility model relates to a metal corrugated air pipe welding device, and belongs to the technical field of corrugated pipe machining, the metal corrugated air pipe welding device comprises a straight pipe positioning and placing mechanism, a welding mechanism and an elbow pipe positioning and placing mechanism which are arranged side by side, and the welding mechanism is arranged between the straight pipe positioning and placing mechanism and the elbow pipe positioning and placing mechanism. The device is simple in structure and convenient to use, through the arrangement of the straight pipe positioning and placing mechanism and the elbow pipe positioning and placing mechanism, when an elbow pipe is fixed, only one end of the elbow pipe needs to be arranged on a three-jaw chuck in a sleeving mode, fixing is easy and convenient, meanwhile, the elbow pipe can be accurately driven to be in butt joint with a straight pipe through a servo motor and a linear sliding table module, and the butt joint efficiency is improved. And finally, the gear motor drives the rotating ring to rotate, the welding gun assembly on the rotating ring conducts automatic welding around the seam of the straight pipe and the elbow pipe, the welding effect is good, and the production efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of bellows processing, and in particular to a metal corrugated air duct welding device. Background Art

[0002] Bellows are widely used in air conditioning, ventilation, automobile and other industries. The processing of aluminum ducts in the existing market is mainly to cut aluminum strips into a certain width, press them into corrugated aluminum strips by machine, and then form them through winding, folding, biting, knurling and other processes. Then the elbow is welded on the long tube to form a Figure 1 The air duct 5 is shown.

[0003] In the prior art, when welding the elbow to the main long tube, manual welding is generally performed. Prior to this, the main long tube and the elbow tube need to be fixed and connected separately before welding. In the prior art, the fixing fixture for the elbow tube is relatively complicated, and the loading is relatively troublesome. The alignment accuracy of the pipe mouth between the main long tube and the elbow tube is low. At the same time, the production efficiency of manual welding is low. Utility Model Content

[0004] The purpose of the present application is to provide a metal corrugated air duct welding device to solve the problems raised in the above background technology.

[0005] To achieve the above objectives, the present application provides a metal corrugated duct welding device adopting the following technical solution:

[0006] A metal corrugated air duct welding device, comprising a straight pipe positioning and placing mechanism, a welding mechanism and an elbow pipe positioning and placing mechanism arranged side by side, wherein the welding mechanism is arranged between the straight pipe positioning and placing mechanism and the elbow pipe positioning and placing mechanism;

[0007] The straight tube positioning and placing mechanism comprises a bottom plate, and clamping cylinders are symmetrically installed on both sides of the bottom plate, and clamping plates are fixed to the ends of the piston rods of the clamping cylinders;

[0008] The welding mechanism comprises a base, a rotating ring, a welding gun assembly and a reduction motor, wherein the rotating ring is rotatably arranged on the base, the reduction motor is fixed on the base and is used to drive the rotating ring to rotate, the welding gun assembly is fixed on the inner wall of the rotating ring, and the rotating ring is sleeved on the extension line of the bottom plate;

[0009] The elbow pipe positioning and placing mechanism includes a base frame, a linear slide module, a support, a three-jaw chuck and a limit plate. The linear slide module is fixed on the base frame, a support plate is fixed on the slide of the linear slide module, the support is fixed on the support plate, the side of the support has a connecting part, the bottom of the connecting part is rotatably connected to a turntable, the three-jaw chuck is fixed on the turntable, and the limit plate is vertically fixed on the support plate.

[0010] Preferably, a laser transmitter and a laser receiver are also fixed on the inner wall of the rotating ring.

[0011] By adopting the above technical solution, a laser transmitter and a laser receiver are provided, and a pipe pushing device can be arranged in front of the straight pipe positioning and placing mechanism. When one end of the straight pipe blocks the laser of the laser transmitter, the pipe feeding work is stopped, and the clamping cylinders on both sides fix the straight pipe through the clamping plates.

[0012] Preferably, in order to improve the clamping effect and reduce the pressure loss on the air duct, the clamping plate, the limit plate and the surfaces of the jaws of the three-jaw chuck are all wrapped with rubber pads.

[0013] Preferably, the support plate is further provided with a limit rod hingedly connected to the support plate, the limit rod is arranged corresponding to the limit plate, and a rubber pad is wrapped on one side of the limit rod close to the limit plate.

[0014] By adopting the above technical solution and setting a limit rod, when one side of the elbow pipe abuts against the limit plate, the limit rod is rotated to abut against the elbow pipe, so that the elbow pipe can be limited and fixed, which is convenient for welding.

[0015] Preferably, in order to accurately control the movement distance of the elbow pipe, a servo motor is installed in the linear slide module.

[0016] To summarize, the present application includes at least one of the following beneficial technical effects: the metal corrugated duct welding device has a simple structure and is easy to use. By providing a straight pipe positioning and placement mechanism and an elbow pipe positioning and placement mechanism, when fixing the elbow pipe, only one end of the elbow pipe needs to be put on the three-jaw chuck, and the fixation is relatively simple. At the same time, the servo motor and the linear slide module can accurately drive the elbow pipe and the straight pipe to connect. Finally, the reduction motor drives the rotating ring to rotate, and the welding gun assembly on the rotating ring automatically welds around the joint of the straight pipe and the elbow pipe. Not only is the welding effect good, but also the production efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram used in the prior art to reflect the air duct.

[0018] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0019] Figure 3 It is a schematic diagram of the structure of the embodiment of the present application from different viewing angles.

[0020] Explanation of the reference numerals: 1. Straight tube positioning and placement mechanism; 11. Bottom plate; 12. Clamping cylinder; 13. Clamping plate; 2. Welding mechanism; 21. Base; 22. Rotating ring; 23. Welding gun assembly; 24. Reducer motor; 3. Elbow tube positioning and placement mechanism; 31. Base frame; 32. Linear slide module; 33. Support; 34. Three-jaw chuck; 35. Limit plate; 36. Turntable; 37. Servo motor; 38. Support plate; 4. Limit rod. DETAILED DESCRIPTION

[0021] The following is combined with Figure 1-3 This application is described in further detail.

[0022] The present application embodiment discloses a metal corrugated air duct welding device, referring to Figure 1-3 , including a straight pipe positioning and placing mechanism 1, a welding mechanism 2 and an elbow pipe positioning and placing mechanism 3 arranged side by side, and the welding mechanism 2 is arranged between the straight pipe positioning and placing mechanism 1 and the elbow pipe positioning and placing mechanism 3;

[0023] The straight tube positioning and placing mechanism 1 comprises a bottom plate 11, and clamping cylinders 12 are symmetrically mounted on both sides of the bottom plate 11, and clamping plates 13 are fixed to the ends of the piston rods of the clamping cylinders 12;

[0024] The welding mechanism 2 includes a base 21, a rotating ring 22, a welding gun assembly 23 and a reduction motor 24. The rotating ring 22 is rotatably arranged on the base 21. The reduction motor 24 is fixed on the base 21 and is used to drive the rotating ring 22 to rotate. The welding gun assembly 23 is fixed on the inner wall of the rotating ring 22. The welding gun assembly 23 includes a welding gun head and a power push rod. The power push rod pushes the welding gun head to approach and move away from the air duct. The rotating ring 22 is sleeved on the extension line of the bottom plate 11. A laser transmitter and a laser receiver (not shown in the figure) are also fixed on the inner wall of the rotating ring 22. A winding groove is also opened on the surface of the rotating ring.

[0025] By providing a laser transmitter and a laser receiver, a pipe pushing device can be arranged in front of the straight pipe positioning and placing mechanism 1. When one end of the straight pipe blocks the laser of the laser transmitter, the pipe feeding work is stopped, and the clamping cylinders 12 on both sides fix the straight pipe through the clamping plates 13.

[0026] The elbow pipe positioning and placing mechanism 3 includes a base frame 31, a linear slide module 32, a support 33, a three-jaw chuck 34 and a limit plate 35. The linear slide module 32 is fixed on the base frame 31, and a servo motor 37 is installed in the linear slide module 32. A support plate 38 is fixed on the slide of the linear slide module 32, and the support 33 is fixed on the support plate 38. The side of the support 33 has a connecting part, and the bottom of the connecting part is rotatably connected to a turntable 36. The three-jaw chuck 34 is fixed on the turntable 36, and the limit plate 35 is vertically fixed on the support plate 38. The surfaces of the clamping plate 13, the limit plate 35 and the claws of the three-jaw chuck 34 are all wrapped with rubber pads.

[0027] Reference Figure 2 A limit rod 4 is also hingedly connected to the support plate 38 in a damping manner. The limit rod 4 is arranged corresponding to the limit plate 35, and a side of the limit rod 4 close to the limit plate 35 is wrapped with a rubber pad.

[0028] By providing the limiting rod 4, when one side of the elbow pipe abuts against the limiting plate 35, the limiting rod 4 is rotated to abut against the elbow pipe, so that the elbow pipe can be limited and fixed, which is convenient for welding.

[0029] The implementation principle of a metal corrugated air duct welding device in the embodiment of the present application is:

[0030] The straight tube is placed on the base plate 11, and one end is in a horizontal plane with the welding gun assembly 23, and then the straight tube is fixed by the clamping cylinders 12 on both sides. Then one end of the elbow tube is horizontally put on the three-jaw chuck 34 and fixed by the three-jaw chuck 34. Thereafter, the elbow tube is rotated so that one side is against the limit plate 35, and the limit rod 4 is rotated to fix the elbow tube. Finally, the servo motor 37 and the linear slide module 32 are used to accurately drive the elbow tube and the straight tube to dock, and the reduction motor 24 drives the rotating ring 22 to rotate, and the welding gun assembly 23 on the rotating ring 22 is welded around the joint between the straight tube and the elbow tube.

[0031] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, all equivalent changes made according to the structure, shape, principle and application direction of the present application should be included in the protection scope of the present application.

Claims

1. A metal corrugated air duct welding device, characterized in that: The invention comprises a straight pipe positioning and placing mechanism (1), a welding mechanism (2) and an elbow pipe positioning and placing mechanism (3) which are arranged side by side, wherein the welding mechanism (2) is arranged between the straight pipe positioning and placing mechanism (1) and the elbow pipe positioning and placing mechanism (3). The straight tube positioning and placing mechanism (1) comprises a base plate (11), clamping cylinders (12) are symmetrically mounted on both sides of the base plate (11), and clamping plates (13) are fixed to the ends of the piston rods of the clamping cylinders (12). The welding mechanism (2) comprises a base (21), a rotating ring (22), a welding gun assembly (23) and a reduction motor (24); the rotating ring (22) is rotatably arranged on the base (21); the reduction motor (24) is fixed on the base (21) and is used to drive the rotating ring (22) to rotate; the welding gun assembly (23) is fixed on the inner wall of the rotating ring (22); the rotating ring (22) is sleeved on the extension line of the bottom plate (11); The elbow pipe positioning and placing mechanism (3) comprises a base frame (31), a linear slide module (32), a support (33), a three-jaw chuck (34) and a limit plate (35); the linear slide module (32) is fixed on the base frame (31); a support plate (38) is fixed on the slide of the linear slide module (32); the support (33) is fixed on the support plate (38); a connecting portion is provided on the side of the support (33); a turntable (36) is rotatably connected to the bottom of the connecting portion; the three-jaw chuck (34) is fixed on the turntable (36); and the limit plate (35) is vertically fixed on the support plate (38).

2. The metal corrugated air duct welding device according to claim 1, characterized in that: A laser transmitter and a laser receiver are also fixed on the inner wall of the rotating ring (22).

3. The metal corrugated air duct welding device according to claim 1, characterized in that: The surfaces of the clamping plate (13), the limiting plate (35) and the jaws of the three-jaw chuck (34) are all wrapped with rubber pads.

4. The metal corrugated air duct welding device according to claim 1, characterized in that: A limit rod (4) is also hingedly connected to the support plate (38) in a damping manner. The limit rod (4) is arranged corresponding to the limit plate (35), and a side of the limit rod (4) close to the limit plate (35) is wrapped with a rubber pad.

5. The metal corrugated air duct welding device according to claim 1, characterized in that: A servo motor (37) is installed in the linear slide module (32).

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