Automatic seam welding equipment for composite titanium tank

Abstract

The utility model relates to the technical field of composite titanium tank body machining, in particular to an automatic welding device for a joint of a composite titanium tank body, which comprises a cross truss manipulator, an automatic welding gun head is connected to the extending end of the cross truss manipulator, and a welding wire output hole of the automatic welding gun head horizontally and vertically points to the inner wall of the composite titanium tank body. Two rolling supporting wheel assemblies are arranged on one side of the cross-shaped truss mechanical arm in a spaced mode, and the linear driving mechanism drives the two rolling supporting wheel assemblies to move front and back. An inclined guide shell is connected to the automatic welding gun head, an inclined Z-shaped dust collection shell is slidably connected into the inclined guide shell, the inclined lower end of the Z-shaped dust collection shell is open, the inclined upper end of the Z-shaped dust collection shell is sealed and connected with a transition pipe, one end of the flexible dust collection pipe is connected with the transition pipe, and the other end of the flexible dust collection pipe is connected with an external dust collector. The welding device is reasonable in structure, welding slag and dust existing between joints are reduced, and the welding quality is improved.

Description

Technical Field

[0001] This utility model relates to the field of composite titanium tank processing technology, and in particular to an automatic welding equipment for the joints of composite titanium tanks. Background Technology

[0002] Composite titanium tanks are tanks made of titanium and other materials, including a titanium layer, a base layer, and an intermediate transition layer. Sometimes, an intermediate transition layer is set between the titanium layer and the base layer to improve the bonding performance between the titanium and the base material, enhance the composite effect, strengthen the bonding force between the two layers, and prevent delamination during use. The base layer is usually made of rolled and welded steel plates. When the length of the composite titanium tank body is required to be long, multiple steel plate rolls need to be assembled and welded. In this process, automatic welding equipment is required to weld the steel plate rolls. The automatic welding equipment includes a cross-truss robot, an automatic welding gun head, and two rolling support wheel assemblies. The steel plate rolls to be assembled and welded are placed on the two rolling support wheel assemblies and rolled together. The cross-truss robot drives the automatic welding gun head to extend into the corresponding position at the joint of the adjacent steel plate rolls. Next, the cross-truss robot works to drive the automatic welding gun head to move downwards an appropriate distance so that the automatic welding gun head can weld the joint of the adjacent steel plate rolls. At the same time, the two rolling support wheel assemblies work to drive the steel plate rolls to rotate so that the automatic welding gun head can perform circumferential welding on the joint of the adjacent steel plate rolls.

[0003] Regarding the aforementioned technologies, the inventors discovered that existing automatic welding equipment generates a significant amount of welding slag and dust during the welding process. As the steel plate drum rotates, the welding slag and dust slide to the bottom under gravity, resulting in a large amount of welding slag and dust at the joint between the automatic welding torch head and the steel plate drum. This can easily lead to problems such as porosity, slag inclusion, and incomplete weld formation at the weld joint, thus reducing the quality of the weld. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide an automatic welding equipment for the joints of composite titanium tanks, which reduces the welding slag and dust between the automatic welding gun head and the joints of adjacent steel plate rolls, thereby improving the welding quality.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: providing an automatic welding device for the joints of a composite titanium tank, comprising: a cross-truss manipulator, wherein an automatic welding gun head is connected to the extended end of the cross-truss manipulator, the welding wire output hole of the automatic welding gun head is horizontal and vertically pointing towards the inner wall of the composite titanium tank, two rolling support wheel assemblies are spaced apart on one side of the cross-truss manipulator, and a linear drive mechanism is also included to drive the two rolling support wheel assemblies to move back and forth.

[0006] The automatic welding gun head is connected to an inclined guide housing, and an inclined Z-shaped dust collection housing is slidably connected inside the inclined guide housing. The lower inclined end of the Z-shaped dust collection housing is open, and the upper inclined end of the Z-shaped dust collection housing is sealed and connected to a transition tube. A universal ball is connected to the Z-shaped dust collection housing. When the universal ball rolls into contact with the inner wall of the composite titanium tank, there is a gap between the lower inclined end of the Z-shaped dust collection housing and the inner wall of the composite titanium tank. The device also includes a flexible dust collection tube, one end of which is connected to the transition tube, and the other end is connected to an external vacuum cleaner.

[0007] By adopting the above technical solution, during use, multiple steel plate rolls to be welded are placed between two rolling support wheel assemblies, and adjacent steel plate rolls are positioned and fixed by spot welding. The truss manipulator then operates to drive the automatic welding torch head into the steel plate roll and align it with the joint. Next, the linear drive mechanism drives the two rolling support wheel assemblies to move horizontally, maintaining a suitable distance between the welding wire output hole of the automatic welding torch head and the joint of the adjacent steel plate roll. The automatic welding torch head then welds the joint of the adjacent steel plate rolls. Simultaneously, the two rolling support wheel assemblies drive the steel plate rolls to rotate circumferentially, allowing the automatic welding torch head to perform circumferential welding on the joint of the adjacent steel plate rolls. Because the welding wire output hole of the automatic welding torch head is horizontal and... The welding process, directed vertically towards the inner wall of the composite titanium tank, produces welding slag and dust that slides down to the bottom of the steel plate roll under gravity. An external vacuum cleaner, using a flexible suction pipe and a Z-shaped suction housing, removes the sliding slag and dust, enhancing the cleanliness of the joints between adjacent steel plate rolls and improving the welding quality of the automatic welding torch at these joints. Because the Z-shaped suction housing is tilted within the inclined guide housing, its weight overcomes friction, causing it to slide downwards. The universal ball joint remains in rolling contact with the inner wall of the composite titanium tank, maintaining a certain gap between the lower end of the Z-shaped suction housing and the joint of the adjacent steel plate roll, preventing interference between the Z-shaped suction housing and the inner wall of the composite titanium tank.

[0008] In a preferred embodiment, the present invention can be further configured as follows: the rolling support wheel assembly includes two symmetrically arranged L-shaped seats, a support shaft is inserted between the two L-shaped seats, a plurality of support wheels are spaced and connected on the support shaft, and one end of the support shaft is connected to a first servo motor.

[0009] By adopting the above technical solution, the first servo motor drives the support shaft to rotate, the support shaft drives several support wheels to rotate, and the several support wheels drive the steel plate roll to rotate, which facilitates the automatic welding gun head to perform circumferential welding on the joint of adjacent steel plate rolls.

[0010] In a preferred embodiment, the present invention can be further configured as follows: the linear drive mechanism includes a base plate and a lead screw connected to its upper plane, guide rails are respectively provided on both sides of the lead screw, and strip plates are respectively connected to the guide rails, with the upper plane of the strip plates connected to the corresponding L-shaped seats.

[0011] By adopting the above technical solution, the working screw drives the strip plate to move, the strip plate drives the support shaft between the L-shaped seats to move, and the support shaft drives the steel plate drum on the support wheel to move, so that the inner wall of the steel plate drum and the welding wire output hole on the automatic welding gun head maintain a suitable distance.

[0012] In a preferred embodiment, the present invention can be further configured as follows: the lead screw includes a lead screw body and support seats rotatably connected to its two ends; a nut seat is helically fitted onto the lead screw body; a movable plate is connected to the nut seat; the two ends of the movable plate are respectively connected to corresponding strip plates; a mounting plate is connected to the base plate; and a second servo motor for driving the lead screw body to rotate is connected to the mounting plate.

[0013] By adopting the above technical solution, the second servo motor drives the lead screw body to rotate, the lead screw body drives the nut seat to move axially, the nut seat drives the moving plate to move, and the moving plate drives the strip plate to move. The structure is simple and easy to install.

[0014] In a preferred embodiment, the present invention can be further configured such that a limiting plate is connected to the inclined guide housing to prevent the Z-shaped vacuum cleaner housing from falling off.

[0015] By adopting the above technical solution and using the limiting plate, the Z-shaped vacuum cleaner housing is prevented from falling out of the inner cavity of the inclined guide housing.

[0016] In a preferred embodiment, the present invention can be further configured such that: a fixing plate is connected to the side of the inclined guide housing, an electric push rod is connected to the fixing plate, and the extended end of the electric push rod is in contact with the limiting plate.

[0017] By adopting the above technical solution, the telescopic rod of the electric push rod extends, thereby driving the Z-shaped vacuum cleaner housing to move obliquely upward through the limiting plate, reducing the probability of interference between the Z-shaped vacuum cleaner housing and the steel plate drum.

[0018] In summary, this utility model has at least one of the following beneficial technical effects:

[0019] 1. Because the welding wire output hole of the automatic welding gun head is horizontal and vertically pointed to the inner wall of the composite titanium tank, the welding slag and dust generated during welding slide down to the bottom of the steel plate roll under the action of gravity. Furthermore, the external vacuum cleaner works by sucking away the sliding welding slag and dust through the flexible vacuum tube and Z-shaped vacuum housing, which enhances the cleanliness of the joint between adjacent steel plate rolls and improves the welding quality of the automatic welding gun head at the joint between adjacent steel plate rolls.

[0020] 2. Because the Z-shaped vacuum cleaner housing inside the inclined guide housing is in an inclined state, under the action of the gravity of the Z-shaped vacuum cleaner housing overcoming the frictional force, the Z-shaped vacuum cleaner housing tends to slide downwards at an angle. The universal ball is always in rolling contact with the inner wall of the composite titanium tank, so that a certain gap is maintained between the lower end of the Z-shaped vacuum cleaner housing and the joint of the adjacent steel plate roll, preventing the Z-shaped vacuum cleaner housing from interfering with the inner wall of the composite titanium tank. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein:

[0022] Figure 1 This is a schematic diagram of a preferred embodiment of an automatic welding device for the joints of a composite titanium tank according to this utility model.

[0023] Figure 2 yes Figure 1 A schematic diagram showing the structure connecting the inclined guide housing, Z-shaped suction housing, transition tube, universal ball, flexible suction tube, limiting plate, fixing plate, and electric push rod.

[0024] Figure 3 yes Figure 1 A schematic diagram of the linear drive mechanism.

[0025] Figure 4 This is another structural schematic diagram of an automatic welding device for the joints of a composite titanium tank according to this utility model.

[0026] In the diagram: 1. Cross-shaped truss robot arm; 2. Automatic welding torch head; 30. Rolling support wheel assembly; 40. Linear drive mechanism; 5. Inclined guide housing; 6. Z-shaped vacuum housing; 7. Transition tube; 8. Universal ball; 9. Flexible vacuum hose; 11. Limiting plate; 12. Fixing plate; 13. Electric push rod;

[0027] 31. L-shaped base; 32. Support shaft; 33. Support wheel; 34. First servo motor;

[0028] 41. Base plate; 42. Lead screw; 43. Guide rail; 44. Strip plate;

[0029] 421. Lead screw body; 422. Support base; 423. Nut seat; 424. Moving plate; 425. Mounting plate; 426. Second servo motor. Detailed Implementation

[0030] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0031] It should be noted that these figures are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0032] Reference Figures 1-4 This utility model discloses an automatic welding device for the joints of a composite titanium tank, comprising: a cross-truss manipulator 1, with an automatic welding gun head 2 connected to the extended end of the cross-truss manipulator 1, the welding wire output hole of the automatic welding gun head 2 being horizontal and vertically pointing towards the inner wall of the composite titanium tank, two rolling support wheel assemblies 30 spaced apart on one side of the cross-truss manipulator 1, a steel plate roll to be assembled and welded being placed between the two rolling support wheel assemblies 30, and a linear drive mechanism 40 for driving the two rolling support wheel assemblies 30 to move back and forth.

[0033] The rolling support wheel assembly 30 includes two symmetrically arranged L-shaped seats 31, with a support shaft 32 passing between the two L-shaped seats 31. Several support wheels 33 are spaced and connected to the support shaft 32. One end of the support shaft 32 is connected to a first servo motor 34. The first servo motor 34 drives the support shaft 32 to rotate, which in turn drives the several support wheels 33 to rotate. The several support wheels 33 then drive the steel plate roll to rotate, facilitating the automatic welding gun head 2 to perform circumferential welding on the joints of adjacent steel plate rolls.

[0034] The linear drive mechanism 40 includes a base plate 41 and a lead screw 42 connected to its upper plane. Guide rails 43 are provided on both sides of the lead screw 42, and strip plates 44 are connected to the guide rails 43. The upper plane of the strip plates 44 is connected to the corresponding L-shaped seats 31. When the lead screw 42 works, it drives the strip plates 44 to move. The strip plates 44 drive the support shaft 32 between the L-shaped seats 31 to move. The support shaft 32 drives the steel plate drum on the support wheel 33 to move, so that the inner wall of the steel plate drum and the welding wire output hole on the automatic welding gun head 2 maintain a suitable distance.

[0035] The lead screw component 42 includes a lead screw body 421 and support seats 422 rotatably connected to its two ends. A nut seat 423 is helically fitted onto the lead screw body 421, and a movable plate 424 is connected to the nut seat 423. The two ends of the movable plate 424 are respectively connected to corresponding strip plates 44. A mounting plate 425 is connected to the base plate 41, and a second servo motor 426 that drives the lead screw body 421 to rotate is connected to the mounting plate 425. The second servo motor 426 drives the lead screw body 421 to rotate, the lead screw body 421 drives the nut seat 423 to move axially, the nut seat 423 drives the movable plate 424 to move, and the movable plate 424 drives the strip plates 44 to move. The structure is simple and easy to install.

[0036] An inclined guide housing 5 is connected to the automatic welding gun head 2. An inclined Z-shaped dust collection housing 6 is slidably connected inside the inclined guide housing 5. The lower inclined end of the Z-shaped dust collection housing 6 is open, and the upper inclined end of the Z-shaped dust collection housing 6 is sealed and connected to a transition tube 7. A universal ball 8 is connected to the Z-shaped dust collection housing 6. When the universal ball 8 rolls in contact with the inner wall of the composite titanium tank, there is a gap between the lower inclined end of the Z-shaped dust collection housing 6 and the inner wall of the composite titanium tank. It also includes a flexible dust collection tube 9. One end of the flexible dust collection tube 9 is connected to the transition tube 7, and the other end is connected to an external vacuum cleaner.

[0037] A limiting plate 11 is connected to the inclined guide housing 5 to prevent the Z-shaped vacuum cleaner housing 6 from falling off; the use of the limiting plate 11 prevents the Z-shaped vacuum cleaner housing 6 from falling off the inner cavity of the inclined guide housing 5.

[0038] A fixed plate 12 is connected to the side of the inclined guide housing 5, and an electric push rod 13 is connected to the fixed plate 12. The extended end of the electric push rod 13 is in contact with the limiting plate 11. The telescopic rod of the electric push rod 13 extends, thereby driving the Z-shaped dust collection housing 6 to move obliquely upward through the limiting plate 11, reducing the probability of interference between the Z-shaped dust collection housing 6 and the steel plate roll. When the position of the automatic welding gun head 2 is determined, the telescopic rod of the electric push rod 13 is retracted, and the extended end of the electric push rod 13 separates from the limiting plate 11. Under the action of the Z-shaped dust collection housing 6 overcoming friction, the universal ball 8 rolls and connects with the inner wall of the composite titanium tank.

[0039] The implementation principle of this embodiment is as follows: In use, multiple steel plate rolls to be welded are placed between two rolling support wheel assemblies 30, and adjacent steel plate rolls are positioned and fixed by spot welding. The cross-truss manipulator 1 drives the automatic welding gun head 2 to extend into the steel plate roll and align with the joint. Next, the linear drive mechanism 40 drives the two rolling support wheel assemblies 30 to move horizontally, so that the welding wire output hole of the automatic welding gun head 2 maintains a suitable distance from the joint of the adjacent steel plate rolls. The automatic welding gun head 2 then welds the joint of the adjacent steel plate rolls. Simultaneously, the two rolling support wheel assemblies 30 drive the steel plate rolls to rotate circumferentially, so that the automatic welding gun head 2 performs circumferential welding on the joint of the adjacent steel plate rolls. Due to the water... The welding torch 8, positioned horizontally and vertically towards the inner wall of the composite titanium tank, produces welding slag and dust that slides down to the bottom of the steel plate roll under gravity. An external vacuum cleaner, using a flexible suction pipe 9 and a Z-shaped suction housing 6, removes the sliding welding slag and dust, enhancing the cleanliness of the joint between adjacent steel plate rolls and improving the welding quality of the automatic welding torch head 2 at the joints. Because the Z-shaped suction housing 6 inside the inclined guide housing 5 is tilted, its weight overcomes friction, causing it to slide downwards. The universal ball 8 remains in rolling contact with the inner wall of the composite titanium tank, maintaining a certain gap between the lower end of the Z-shaped suction housing 6 and the joint of the adjacent steel plate roll, preventing interference between the Z-shaped suction housing 6 and the inner wall of the composite titanium tank.

[0040] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An apparatus for automatic welding of seams of composite titanium tanks, comprising: Cross truss manipulator (1), the extension end of the cross truss manipulator (1) is connected with an automatic welding gun head (2), characterized in that the welding wire output hole of the automatic welding gun head (2) points horizontally and vertically to the inner wall of the composite titanium tank body, two rolling support wheel assemblies (30) are arranged on one side of the cross truss manipulator (1) in intervals, and a linear driving mechanism (40) for driving the two rolling support wheel assemblies (30) to move forward and backward is further included. An inclined guide shell (5) is connected to the automatic welding gun head (2), an inclined Z-shaped dust collection shell (6) is slidably connected in the inclined guide shell (5), the obliquely lower end of the Z-shaped dust collection shell (6) is open, the obliquely upper end of the Z-shaped dust collection shell (6) is sealed and connected with a transition pipe (7), a universal ball (8) is connected to the Z-shaped dust collection shell (6), when the universal ball (8) is in rolling contact with the inner wall of the composite titanium tank body, a gap exists between the obliquely lower end of the Z-shaped dust collection shell (6) and the inner wall of the composite titanium tank body, and a flexible dust collection pipe (9) is further included, one end of the flexible dust collection pipe (9) is connected with the transition pipe (7), and the other end is connected with an external dust collector.

2. The automatic seam welding apparatus for composite titanium tanks according to claim 1, characterized by, The rolling support wheel assembly (30) comprises two symmetrical L-shaped seats (31), a support shaft (32) is arranged between the two L-shaped seats (31), a plurality of support wheels (33) are connected to the support shaft (32) in intervals, and a first servo motor (34) is connected to one end of the support shaft (32).

3. The apparatus for automatic welding of seams of composite titanium tanks according to claim 2, characterized in that, The linear driving mechanism (40) comprises a bottom plate (41) and a screw rod member (42) connected to the plane of the bottom plate (41), guide rails (43) are arranged on the two sides of the screw rod member (42), respectively, and strip-shaped plates (44) are connected to the guide rails (43), respectively, and the upper plane of the strip-shaped plate (44) is connected with the corresponding L-shaped seat (31).

4. The apparatus for automatic welding of seams of composite titanium tanks according to claim 3, characterized in that, The screw rod member (42) comprises a screw rod body (421) and support seats (422) rotatably connected to the two ends of the screw rod body (421), a nut seat (423) is spirally connected to the screw rod body (421), a moving plate (424) is connected to the nut seat (423), the two ends of the moving plate (424) are connected with the corresponding strip-shaped plate (44), respectively, an installation plate (425) is connected to the bottom plate (41), and a second servo motor (426) for driving the screw rod body (421) to rotate is connected to the installation plate (425).

5. The apparatus for automatic welding of seams of composite titanium tanks according to claim 1, characterized in that, A limiting plate (11) for preventing the Z-shaped dust collection shell (6) from falling off is connected to the inclined guide shell (5).

6. The apparatus for automatic welding of seams of composite titanium tanks according to claim 5, characterized in that, A fixed plate (12) is connected to the side surface of the inclined guide shell (5), an electric push rod (13) is connected to the fixed plate (12), and the extension end of the electric push rod (13) is in abutting connection with the limiting plate (11).

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