Oil tank partition plate welding machine and using method thereof

Abstract

The invention relates to the technical field of fuel tank welding, in particular to a fuel tank partition plate welding machine and a using method thereof.The fuel tank partition plate welding machine comprises a machine body, the machine body is provided with a welding device, the welding device is arranged at the left end of the machine body, and the machine body is used for spot welding hollow-out plates with symmetrical holes in a tank body with openings in the two ends; the first limiting part is arranged at the middle position, close to the left end, of the machine body, and the first limiting part is used for movably supporting and fixing one end part of the box body from outside to inside; a second limiting part and a detector. The first limiting part used for preliminarily supporting the box body is arranged on the inner side of the left end of the machine body, the crescent protruding block and the first elastic clamping piece which movably abut against each other are arranged on the rotating bearing rotating disc, and after the welded box body and the hollowed-out plate are driven to rotate, a penetrating agent and a developing agent are used for observing a welding seam; whether a welding seam between the box body and the hollow plate is complete or not can be judged under the condition that the box body and the hollow plate are not disassembled, so that vacancy filling is facilitated.

Description

Technical Field

[0001] The present invention relates to the technical field of fuel tank welding, and in particular to a fuel tank partition welding machine and a use method thereof. Background Art

[0002] During the operation of a vehicle or equipment, the liquid in the fuel tank will shake due to movement. The partition can divide the inside of the fuel tank into multiple small spaces, effectively suppressing the shaking of the liquid. By setting partitions in the fuel tank, the overall structural strength of the fuel tank can also be enhanced, which can prevent the fuel tank from excessive deformation when subjected to external pressure. In some special fuel tank designs, two different but incompatible liquids may be stored at the same time, and the partition can be used for isolation.

[0003] Welding partitions inside a fuel tank is different from plane welding operations. For example, a large-capacity fuel tank partition welding tool disclosed in Announcement No. CN217890038U can quickly clamp and fix all four sides of the fuel tank at the same time through a clamping mechanism. The threaded rod rotates in the movable frame, driving the movable block to drive the clamping plate to move in the movable frame. The position of the clamping plate can be adjusted according to the volume of the fuel tank. Similarly, Announcement No. CN221435467U discloses an automatic welding device for partitions inside a fuel tank. A support frame is provided on a lifting seat and on one side of the mounting frame. The support frame is provided with a rotating rod. The rotating rod is provided with a roller that rolls in contact with the surface of the fuel tank to ensure that the fuel tank is reliably positioned during clamping and fixing. However, a single clamping structure is still insufficient for a relatively closed fuel tank structure:

[0004] Although the clamping mechanism in the former can be adjusted to the size of the fuel tank, the fuel tank structure is relatively large and heavy. Due to the lack of basic support, it is difficult to clamp and fix it using the linearly distributed clamping mechanism. Moreover, it is difficult to adjust its state after fixation, which cannot meet the subsequent welding requirements and requires repeated disassembly and adjustment.

[0005] Although the latter adopts a roller structure that is compatible with the oil tank structure, the connection between the oil tank and the roller only relies on the position of the roller to be fixed, and the roller itself has a rotating effect, so it is difficult to effectively fix the oil tank that is undergoing state adjustment during welding operations. More importantly, welding a partition inside the oil tank requires that the partition be relatively fixed inside the oil tank. The above failure to achieve relative fixation between the oil tank and the partition will not only increase the difficulty of the welding operation, but will also easily lead to omissions in the weld, and the comprehensiveness and firmness of the welding cannot be guaranteed. Summary of the Invention

[0006] The purpose of the present invention is to solve the problem in the prior art that it is difficult to weld and install the partition of the oil tank, and to propose an oil tank partition welding machine and a method of using the same.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] A fuel tank partition welding machine includes a machine body, on which is provided:

[0009] A welder is provided at the left end of the machine body and is used for spot welding hollow plates with symmetrical openings in a box body with openings at both ends;

[0010] A first limiting portion is provided at a middle position of the housing near the left end, and is used for movably supporting and fixing one end of the housing from the outside to the inside;

[0011] A second limiting portion is provided at the right end of the housing and is used to abut from right to left and fix the other end of the housing from outside to inside;

[0012] a third limiting portion, the third limiting portion being arranged at one end of the body close to the right end through the second limiting portion, and the third limiting portion being used to fix the hollow plate in the box body;

[0013] The detector is movably arranged at the front side of the machine body, and the detector is located between the first limiting portion and the second limiting portion. The detector is used to detect whether there is a welding blind area in the weld between the box body and the hollow plate.

[0014] Preferably, the body comprises:

[0015] A first bracket, the first bracket being integrally arranged at the left end of the machine body, and a vertical mounting slot for arranging a welder is vertically opened in the first bracket;

[0016] A second bracket is integrally provided at a middle portion of the body near the left end, and the second bracket is provided with an arc-shaped mounting groove for providing a first limiting portion;

[0017] A third bracket is integrally provided at the right end of the body, and a transverse through hole for setting the second limiting portion and the third limiting portion is opened in the third bracket;

[0018] The fourth bracket is slidably installed at the front side of the body, and the fourth bracket is located between the second bracket and the third bracket. The fourth bracket is used to set the detector.

[0019] Preferably, the welder comprises:

[0020] A lifting frame, the lifting frame being arranged on the first bracket through a vertical mounting slot;

[0021] A telescopic frame, the telescopic frame being horizontally slidably mounted on the lifting frame;

[0022] A welding gun is fixedly mounted on the telescopic frame.

[0023] Preferably, the first limiting portion includes:

[0024] A load-bearing turntable, which is rotatably installed on the second bracket through an arc-shaped mounting groove;

[0025] A central hole, which is opened at the center of the load-bearing turntable, and the central hole is used for movably sleeving the box body;

[0026] Radial guide holes, the number of the radial guide holes is two, and the two radial guide holes are symmetrically opened on both sides of the central hole;

[0027] A first elastic clamping member, which is arranged in the radial guide hole and the first elastic clamping member extends into the central hole movably;

[0028] A damping rotating ring, which is rotatably installed on the load-bearing turntable;

[0029] A crescent bump, which is integrally welded to the damping rotating ring, and the crescent bump is in movable contact with the first elastic clamping member. <000,0061>

[0030] Preferably, the second limiting portion includes:

[0031] A translation cross bar, which is slidably installed in the third bracket through a transverse through hole; [[ID=2,]]

[0032] A U-shaped flipping frame, which is rotatably connected to the translation cross bar, and a right-angle long hole, a front-end long hole and a limiting through hole are opened in the U-shaped flipping frame; <00,0067>

[0033] Synchronous telescopic rods, the number of the synchronous telescopic rods is two, and the two synchronous telescopic rods both slide through the U-shaped flipping frame;

[0034] A double-layer limiting end cover, which is integrally connected to one end of the synchronous telescopic rod, and the double-layer limiting end cover is movably inserted into the opening of the box body;

[0035] The second limiting portion further includes:

[0036] A winding roller, which is rotatably installed in the right-angle long hole;

[0037] A steering sprocket wheel, which is rotatably installed in the front-end long hole;

[0038] A second elastic clamping member, which is movably sleeved in the limiting through hole;

[0039] A reciprocating rack, which is integrally connected to the other end of the synchronous telescopic rod;

[0040] A reciprocating gear, wherein the reciprocating gear is key-connected to the winding roller and meshed with the reciprocating rack;

[0041] A traction chain is fixedly connected to the winding roller and the second elastic clamping member at the opposite side through a steering sprocket.

[0042] Preferably, the third limiting portion includes:

[0043] A hollow moving rod, wherein the hollow moving rod is slidably mounted in the double-layer limit end cover;

[0044] A limit baffle, the limit baffle being integrally welded to the hollow moving rod;

[0045] A driving rod, wherein the driving rod is slidably mounted in the hollow moving rod;

[0046] A steering swing arm is rotatably mounted in the hollow moving rod and the limit baffle, and is movably pulled by the driving rod;

[0047] A right-angle plug rod is slidably mounted in the limit baffle, is movably pulled by the steering rocker, and is movably inserted into the opening of the hollow plate;

[0048] A receiving notch is provided in one end of a right-angled plug rod that movably passes through the hollow plate;

[0049] A limiting groove is provided in the receiving notch;

[0050] A driving block, wherein the driving block is slidably mounted in the limiting groove;

[0051] The limiting rocker is rotatably installed in the receiving slot, and the limiting rocker is movably pulled by the driving block.

[0052] Preferably, a first connecting rod is pin-connected between the driving rod and one end of the steering rocker arm, a traction long hole is opened in the other end of the steering rocker arm, and a traction long bolt is integrally connected to the right-angle plug rod and is slidably mounted in the traction long hole.

[0053] Preferably, a second connecting rod is pin-connected between the driving block and one end of the limiting rocker.

[0054] Preferably, the detector comprises:

[0055] a first syringe, the first syringe being fixedly mounted on the fourth bracket and being used for spraying a penetrant onto the weld between the box body and the hollow plate;

[0056] The second syringe is fixedly mounted on the fourth bracket and is used for spraying developer onto the weld between the box body and the hollow plate.

[0057] The usage method of the above-mentioned fuel tank partition welding machine includes the following steps:

[0058] Step S1, horizontally place the box body through the central hole in the load-bearing turntable, so that one end of the box body is fixedly sleeved on the double-layer limit end cover, control the damping rotating ring to deflect to be fixed, and use the crescent bump to squeeze the first elastic clamping member until it抵触 the outer wall of the right end of the box body;

[0059] Step S2, control the translation cross bar to move to the right, so that the U-shaped flipping frame drives the double-layer limit end cover to move to the right synchronously. After being squeezed by the box body, the double-layer limit end cover drives the synchronous telescopic rod to move to the left. The synchronous telescopic rod drives the reciprocating rack to move, and drives the winding roller to rotate through the reciprocating gear to wind the traction chain. Use the traction chain to traction the second elastic clamping member at the opposite position until it clamps the outer wall of the left end of the box body;

[0060] Step S3, push the hollow plate into the box body to the welding position, control the movement of the driving rod to drive the steering swing rod to deflect, and the steering swing rod supports the right-angle insertion rod to move horizontally through the hollow plate. Control the movement of the driving block, and support the limit rocker to deflect outward from the storage slot through the second connecting rod to limit and fix the hollow plate in the box body;

[0061] Step S4, control the lifting frame to vertically lift on the first bracket, and control the telescopic frame to move horizontally on the lifting frame until the welding torch extends into the box body. Use the welding torch to perform spot welding on the box body and the hollow plate. By controlling the U-shaped flipping frame to rotate step by step on the translation cross bar, and then adjust the position of the welding torch through the lifting frame to complete circumferential welding;

[0062] Step S5, control the fourth bracket to move left and right, and control the first syringe on the fourth bracket to spray penetrant on the weld between the box body and the hollow plate. After standing and evaporating, control the second syringe to spray developer on the weld between the box body and the hollow plate, and observe whether there is a welding blind area in the weld between the box body and the hollow plate through the developer.

[0063] Compared with the prior art, the present invention has the following advantages:

[0064] 1. The present invention sets a first limiting part for initially supporting the box body at the inner side position of the left end of the machine body. By setting a movable crescent bump and a first elastic clamping member on the rotating load-bearing turntable, the box body passing through the central hole is limited and fixed, which is convenient for the second limiting part to press on the box body.

[0065] 2. The present invention sets a horizontally movable translation crossbar at the right end of the machine body. After rotatably installing a U-shaped flipping frame, a double-layer limiting end cover that can be horizontally telescoped is set. The translation crossbar is used to make the double-layer limiting end cover abut against the left-end opening of the box body, and the horizontally telescoping double-layer limiting end cover is movably牵引ed by a reciprocating rack, a reciprocating gear and a traction chain to a second elastic clamping member at the opposite position, so as to further clamp and fix the box body.

[0066] 3. The present invention sets a hollow moving rod and a limiting baffle forming a cross-shaped structure on the double-layer limiting end cover. While fixing the box body by the second limiting part, the third limiting part is located inside the box body and corresponds to the hollowed-out plate. A right-angle inserting rod is movably inserted through the hollowed-out plate, and a limiting rocker is driven to swing in the right-angle inserting rod, so as to perform penetrating limiting fixation on the hollowed-out plate at the welding position inside the box body.

[0067] 4. The present invention sets a welding torch that can be vertically and horizontally reciprocally adjusted at the left end of the machine body. It is independently set relative to the box body and the hollowed-out plate, ensuring that the welding torch can be flexibly adjusted in position according to the structural shape of the contact part between the two, so as to perform circumferential welding operations on the contact part between the box body and the hollowed-out plate.

[0068] 5. The present invention sets a first syringe and a second syringe for spraying penetrant and developer on the machine body. After driving the box body and the hollowed-out plate that have completed welding to rotate, the penetrant and developer are used to observe the weld seam, which helps to judge whether the weld seam between the two is complete without disassembling the box body and the hollowed-out plate, so as to facilitate making up for deficiencies. BRIEF DESCRIPTION OF THE DRAWINGS

[0069] Figure 1 is a schematic structural diagram of a fuel tank partition welding machine proposed by the present invention;

[0070] Figure 2 is a side elevation view of a fuel tank partition welding machine proposed by the present invention;

[0071] Figure 3 is a side top view of a fuel tank partition welding machine proposed by the present invention;

[0072] Figure 4 is a schematic structural diagram of the machine body of a fuel tank partition welding machine proposed by the present invention;

[0073] Figure 5 is a schematic structural diagram of the welder of a fuel tank partition welding machine proposed by the present invention;

[0074] Figure 6 is a schematic structural diagram of the first limiting part of a fuel tank partition welding machine proposed by the present invention;

[0075] Figure 7Schematic diagram of the translation crossbar, U-shaped flipping frame and double-layer limiting end cover structure of a fuel tank partition welding machine proposed by the present invention;

[0076] Figure 8 Schematic diagram of the second limiting part structure of a fuel tank partition welding machine proposed by the present invention;

[0077] Figure 9 Schematic diagram of the third limiting part structure of a fuel tank partition welding machine proposed by the present invention;

[0078] Figure 10 Cross-sectional view of the third limiting part of a fuel tank partition welding machine proposed by the present invention;

[0079] Figure 11 Schematic diagram of the detector structure of a fuel tank partition welding machine proposed by the present invention;

[0080] Figure 12 Schematic diagram of the box body structure;

[0081] Figure 13 Cross-sectional view of the box body and the hollowed-out plate. [[ID=2\6]]

[0082] In the figure:

[0083] 1. Machine body; 11. First bracket; 12. Second bracket; 13. Third bracket; 14. Fourth bracket;

[0084] 2. Welding torch; 21. Lifting frame; 22. Telescopic frame; 23. Welding gun;

[0085] 3. First limiting part; 31. Bearing turntable; 32. Central hole; 33. Radial guide hole; 34. First elastic clamping piece; 3\5. Damping rotating ring; 36. Crescent bump;

[0086] 4. Second limiting part; 41. Translation crossbar; 42. U-shaped flipping frame; 43. Synchronous telescopic rod; 44. Double-layer limiting end cover; 45. Right-angled long hole; 46. Front-end long hole; 47. Limiting through hole; 48. Winding roller; 49. Steering sprocket; 410. Second elastic clamping piece; 411. Reciprocating rack; 412. Reciprocating gear; 413. Traction chain;

[0087] 5. Third limiting part; 51. Hollow moving rod; 52. Limiting baffle; 53. Driving rod; 54. Steering swing rod; 55. Right-angled insertion rod; 5\6. Storage notch; 57. Limiting groove; 58. Driving block; 59. Limiting rocker; 510. First connecting rod; 511. Traction long hole; 512. Traction long bolt; 513. Second connecting rod;

[0088] 6. Detector; 61. First syringe; 62. Second syringe. Detailed implementation manners

[0089] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0090] Reference Figures 1-13 A tank partition welding machine includes a body 1, a welding device 2, a first limiter 3, a second limiter 4, a third limiter 5, and a detector 6. Figure 12 With attached Figure 13 By fixing a hollow plate in a fuel tank body with openings at both ends, and driving the relatively fixed tank body and the hollow plate to flip, it is convenient to perform spot welding on the contact parts between the tank body and the hollow plate.

[0091] Please refer to the instruction manual for details Figure 1 -Attached Figure 4 , and the body 1 includes a first bracket 11, a second bracket 12, a third bracket 13, and a fourth bracket 14:

[0092] The first bracket 11 is integrally arranged at the left end of the body 1, and a vertical mounting groove for setting the welder 2 is vertically opened in the first bracket 11. By movably setting the welder 2 on the first bracket 11, the welding gun 23 enters the box under the action of horizontal movement, and the welding gun 23 flexibly corresponds to the contact position between the box and the hollow plate under the action of vertical movement.

[0093] The second bracket 12 is integrally arranged in the middle position of the body 1 near the left end, and an arc-shaped mounting groove for setting the first limiting portion 3 is opened in the second bracket 12. The arc-shaped mounting groove can use the first limiting portion 3 to fix the box body while providing rotation support, so as to facilitate comprehensive welding and inspection operations.

[0094] The third bracket 13 is integrally arranged at the right end of the body 1, and a transverse through hole for setting the second limiting part 4 and the third limiting part 5 is opened in the third bracket 13. It should be noted that by setting a driving cylinder on the third bracket 13, the translation cross bar 41 can be moved horizontally back and forth.

[0095] The fourth bracket 14 is slidably installed on the front side of the body 1, and the fourth bracket 14 is located between the second bracket 12 and the third bracket 13. The fourth bracket 14 is used to set the detector 6. The detector 6 is movably set by the movable fourth bracket 14 to facilitate the detection of the weld between the box and the hollow plate.

[0096] Please refer to the instruction manual for details Figure 5The welder 2 is arranged at the left end of the machine body 1, and the machine body 1 is used to spot weld the hollow plate with symmetrical openings in the box body with openings at both ends. The welder 2 includes a lifting frame 21, a telescopic frame 22, and a welding gun 23:

[0097] The lifting frame 21 is mounted on the first bracket 11 via a vertical mounting groove. The first bracket 11 is provided with a limiting structure for fixing the position of the vertically lifted lifting frame 21 so that the welding gun 23 can extend into the box.

[0098] The telescopic frame 22 is horizontally slidably mounted on the lifting frame 21. Since the hollow plate is located in the box, the telescopic frame 22 drives the welding gun 23 to move horizontally and adjust, so that the welding gun 23 can move to the horizontal position corresponding to the hollow plate.

[0099] The welding gun 23 is fixedly mounted on the telescopic frame 22 , and the welding gun 23 can perform spot welding on the contact portion between the box body and the hollow plate.

[0100] Please refer to the instruction manual for details Figure 2 , Attachment Figure 3 With attached Figure 6 The first limiting portion 3 is provided at the middle position of the body 1 near the left end, and is used to movably support and fix one end of the box from the outside to the inside. The first limiting portion 3 includes a load-bearing turntable 31, a center hole 32, a radial guide hole 33, a first elastic clamping member 34, a damping swivel 35, and a crescent protrusion 36:

[0101] The load-bearing turntable 31 is rotatably mounted on the second bracket 12 through the arc-shaped mounting groove. When the box body mounted on the first limiting part 3 is driven to rotate by the second limiting part 4, the first limiting part 3 can also provide rotation support for the box body.

[0102] The center hole 32 is formed at the center of the load-bearing turntable 31 , and the center hole 32 is used for the movable housing.

[0103] There are two radial guide holes 33, which are symmetrically arranged on both sides of the center hole 32. The radial guide holes 33 adopt a countersunk structure. In the initial state, the first elastic clamping member 34 is accommodated in the radial guide hole 33. When the first elastic clamping member 34 is squeezed by the crescent protrusion 36, it can extend from the radial guide hole 33 to the center hole 32 to clamp and fix the box passing through the center hole 32.

[0104] The first elastic clamping member 34 is disposed in the radial guide hole 33 and movably extends into the central hole 32 .

[0105] The damping rotating ring 35 is rotatably mounted on the bearing turntable 31. It should be noted that an arc groove for rotatably mounting the damping rotating ring 35 is provided on the bearing turntable 31, and by tightening the screw in the arc groove, the angle of the deflecting damping rotating ring 35 can be fixed.

[0106] The crescent bump 36 is integrally welded to the damping rotating ring 35, and the crescent bump 36 is in movable contact with the first elastic clamping member 34. By driving the crescent bump 36 to deflect counterclockwise by 30° through the damping rotating ring 35, the first elastic clamping member 34 supported by the spring can be pressed, causing the first elastic clamping member 34 to move radially, and clamping and fixing the box body in the central hole 32.

[0107] As shown in the attached Figure 7 - attached Figure 9 , the second limiting portion 4 is provided at the right end of the machine body 1, and the second limiting portion 4 is used to abut against and fix the other end portion of the box body from right to left and from outside to inside. First, specifically refer to the attached Figure 7 and attached Figure 8 , the second limiting portion 4 includes a translation cross bar 41, a U-shaped flipping frame 42, a synchronous telescopic rod 43, and a double-layer limiting end cover 44:

[0108] The translation cross bar 41 is slidably mounted in the third bracket 13 through a transverse through hole.

[0109] The U-shaped flipping frame 42 is rotatably connected to the translation cross bar 41, and a right-angle long hole 45, a front-end long hole 46, and a limiting through hole 47 are provided in the U-shaped flipping frame 42. The limiting through hole 47 is located between the right-angle long hole 45 and the front-end long hole 46. A driving motor for driving the U-shaped flipping frame 42 to rotate is provided on the translation cross bar 41 to realize the flipping drive of the box body and the hollow plate.

[0110] The number of synchronous telescopic rods 43 is two, and both of the two synchronous telescopic rods 43 slidably penetrate through the U-shaped flipping frame 42.

[0111] The double-layer limiting end cover 44 is integrally connected to one end of the synchronous telescopic rod 43, and the double-layer limiting end cover 44 is movably inserted into the opening of the box body. In the initial state, the gap between the U-shaped flipping frame 42 and the double-layer limiting end cover 44 is relatively large. By horizontally moving the translation cross bar 41 and using the box body to squeeze the double-layer limiting end cover 44, the double-layer limiting end cover 44 is contracted into the U-shaped flipping frame 42, further realizing the squeezing and limiting of the box body from left to right.

[0112] Secondly, specifically refer to the attached Figure 9 , the second limiting portion 4 further includes a winding roller 48, a steering sprocket 49, a second elastic clamping member 410, a reciprocating rack 411, a reciprocating gear 412, and a traction chain 413:

[0113] The take-up roller 48 is rotatably installed in the rectangular long hole 45.

[0114] The steering sprocket 49 is rotatably installed in the front-end long hole 46.

[0115] The second elastic clamping member 410 is movably sleeved in the limit through-hole 47. In the initial state, due to the traction of the spring on the second elastic clamping member 410, the U-shaped flipping frame 42 is in an open state. When the double-layer limit end cover 44 is squeezed and contracted into the U-shaped flipping frame 42, it can traction the second elastic clamping member 410 to overcome the traction of the spring, so as to clamp and limit the box body at the opening position of the U-shaped flipping frame 42.

[0116] The reciprocating rack 411 is integrally connected to the other end of the synchronous telescopic rod 43.

[0117] The reciprocating gear 412 is key-connected to the take-up roller 48, and the reciprocating gear 412 is meshed and connected with the reciprocating rack 411.

[0118] The traction chain 413 is fixedly connected to the take-up roller 48 and the second elastic clamping member 410 at the opposite side positions through the steering sprocket 49. It should be noted that by setting the chain instead of the pull rope and setting the sprocket instead of the pulley, the second elastic clamping member 410 can move only under the action of the spring and the traction chain 413, ensuring the stability of the second elastic clamping member 410 clamping the box body.

[0119] Specifically refer to the attached drawings of the specification Figure 9 and the attached Figure 10 , the third limiting part 5 is arranged at one end of the machine body 1 near the right end through the second limiting part 4, and the third limiting part 5 is used to fix the hollow plate in the box body. The third limiting part 5 includes a hollow moving rod 51, a limiting baffle 52, a driving rod 53, a steering swing rod 54, a right-angle inserting rod 55, a storage slot 56, a limiting groove 57, a driving block 58, a limiting rocker 59:

[0120] The hollow moving rod 51 is slidably sleeved in the double-layer limit end cover 44. It should be noted that a driving cylinder for driving the horizontal expansion and contraction of the hollow moving rod 51 is arranged on the double-layer limit end cover 44, so that the hollow moving rod 51 can expand and contract in the box body, realizing the correspondence between the third limiting part 5 and the hollow plate in the box body.

[0121] The limiting baffle 52 is integrally welded to the hollow moving rod 51.

[0122] The driving rod 53 is slidably sleeved in the hollow moving rod 51. It should be noted that an automatic telescopic rod for traction the linear reciprocating movement of the driving rod 53 is arranged on the hollow moving rod 51.

[0123] The steering swing arm 54 is rotatably installed in the hollow moving rod 51 and the limit baffle 52 , and the steering swing arm 54 is movably pulled by the driving rod 53 .

[0124] The right-angled rod 55 is slidably mounted in the limit baffle 52 . The right-angled rod 55 is movably pulled by the steering rocker 54 , and is movably inserted into the opening of the hollow plate.

[0125] The receiving slot 56 is formed in one end of the right-angled rod 55 that movably passes through the hollow plate.

[0126] The limiting groove 57 is defined in the receiving notch 56 .

[0127] The driving block 58 is slidably mounted in the limiting groove 57 . It should be noted that the right-angle insert rod 55 is provided with an automatic telescopic rod for pulling the driving block 58 to move back and forth in a straight line.

[0128] The limit rocker 59 is rotatably installed in the storage slot 56, and the limit rocker 59 is movably pulled by the driving block 58. In the initial state, the limit rocker 59 is stored in the storage slot 56. When the right-angle insertion rod 55 passes through the through hole of the hollow plate, the limit rocker 59 is driven to deflect to clip and limit the hollow plate to ensure that the position of the hollow plate in the box is fixed.

[0129] Please refer to the instruction manual for details Figure 1 , Attachment Figure 3 With attached Figure 11 The detector 6 is movably arranged at the front side of the body 1 and is located between the first limit portion 3 and the second limit portion 4. The detector 6 is used to detect whether there is a welding blind area in the weld between the box body and the hollow plate. The detector 6 includes a first syringe 61 and a second syringe 62:

[0130] A first syringe 61 is fixedly mounted on the fourth bracket 14 and is used to spray penetrant into the weld between the box and the hollow plate. A second syringe 62 is fixedly mounted on the fourth bracket 14 and is used to spray developer into the weld between the box and the hollow plate. Using the capillary action of the liquid, a penetrant containing a pigment or fluorescent agent is applied to the surface of the corresponding weld in the box. After a certain period of time, the excess penetrant is cleaned from the surface and the developer is applied. Defective areas will show traces of the penetrant, which can also effectively identify the location and size of pores, allowing for further welding to be performed based on the test results.

[0131] A first connecting rod 510 is pin-connected between the driving rod 53 and one end of the steering swing rod 54. A traction long hole 511 is formed in the other end of the steering swing rod 54, and a traction long bolt 512 that is slidably sleeved in the traction long hole 511 is integrally connected to the right-angle insertion rod 55. The horizontal expansion and contraction of the driving rod 53 can drive the steering swing rod 54 to deflect in a lever manner, and the steering swing rod 54 can also traction the right-angle insertion rod 55 to horizontally expand and contract.

[0132] A second connecting rod 513 is pin-connected between the driving block 58 and one end of the limit rocker 59. Under the traction of the driving block 58, the deflection adjustment of the limit rocker 59 in the storage slot 56 is realized.

[0133] It should be noted that the specific model specifications of the driving motor, driving cylinder, automatic telescopic rod and the welding torch 23 need to be selected according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be elaborated.

[0134] The functional principle of the present invention can be elaborated through the following operation modes:

[0135] A box body with both ends open is horizontally placed through the central hole 32 in the load-bearing turntable 31, so that one end of the box body is fixedly sleeved on the double-layer limit end cover 44. The damping rotating ring 35 is controlled to deflect and fixed, and the crescent-shaped convex block 36 is used to squeeze the first elastic clamping member 34 until it abuts against the outer wall of the right end of the box body. At this point, the damping rotating ring 35 needs to be angle-fixed on the load-bearing turntable 31. <>

[0136] The translation cross bar 41 is controlled to move to the right, so that the U-shaped turning frame 42 drives the double-layer limit end cover 44 to move to the right synchronously. After being squeezed by the box body, the double-layer limit end cover 44 drives the synchronous telescopic rod 43 to move to the left. The synchronous telescopic rod 43 drives the reciprocating rack 411 to move, and drives the winding roller 48 to rotate through the reciprocating gear 412 to wind the traction chain 413. The traction chain 413 is used to traction the second elastic clamping member 410 at the opposite position until it clamps the outer wall of the left end of the box body and abuts against the limit box body from left to right, and realizes radial clamping and fixing at the same time.

[0137] The hollow plate is pushed into the box body from right to left to the welding position. The driving rod 53 is controlled to move to drive the steering swing rod 54 to deflect. The steering swing rod 54 supports the right-angle insertion rod 55 to horizontally move through the hollow plate. The driving block 58 is controlled to move, and the limit rocker 59 is supported by the second connecting rod 513 to deflect outward from the storage slot 56 to limit and fix the hollow plate in the box body.

[0138] Control the vertical lifting of the lifting frame 21 on the first support 11. Control the telescopic frame 22 on the lifting frame 21 to horizontally move until the welding torch 23 extends into the box body. Use the welding torch 23 to perform spot welding on the box body and the hollow plate. By controlling the step-by-step rotation of the U-shaped flipping frame 42 on the translation cross bar 41, and then adjusting the position of the welding torch 23 through the lifting frame 21 to complete the circumferential welding. During this process, attention should be paid to the height position of the welding torch 23 to ensure that the welding torch 23 always corresponds to the contact part between the box body and the hollow plate.

[0139] Control the left and right movement of the fourth support 14. Control the first syringe 61 on the fourth support 14 to spray penetrant on the weld between the box body and the hollow plate. After standing and evaporation, control the second syringe 62 to spray developer on the weld between the box body and the hollow plate. Observe whether there is a welding blind area in the weld between the box body and the hollow plate through the developer. When there are pores, further repair welding operations are carried out.

[0140] As described above, only the preferred specific embodiments of the present invention are given, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered within the protection scope of the present invention.

Claims

1. A fuel tank partition welding machine, comprising a machine body (1), characterized in that: The machine body (1) is provided with: A welder (2), the welder (2) being arranged at the left end of the machine body (1), and the machine body (1) being used for spot welding a hollow plate with symmetrical openings in a box body with openings at both ends; A first limiting portion (3), the first limiting portion (3) being arranged at a middle position of the machine body (1) near the left end, and the first limiting portion (3) being used for movably supporting and fixing one end of the box body from the outside to the inside; A second limiting portion (4), the second limiting portion (4) is arranged at the right end of the body (1), and the second limiting portion (4) is used to abut from right to left and fix the other end of the box from outside to inside; A third limiting portion (5), the third limiting portion (5) being arranged at one end of the machine body (1) close to the right end through the second limiting portion (4), and the third limiting portion (5) being used to fix the hollow plate in the box body; A detector (6) is movably arranged at the front side of the machine body (1), and the detector (6) is located between the first limiting portion (3) and the second limiting portion (4). The detector (6) is used to detect whether there is a welding blind area in the weld between the box body and the hollow plate.

2. The fuel tank partition welding machine according to claim 1, characterized in that: The body (1) comprises: A first bracket (11), the first bracket (11) is integrally arranged at the left end of the machine body (1), and a vertical installation slot for arranging the welder (2) is vertically opened in the first bracket (11); A second bracket (12), the second bracket (12) is integrally arranged at a middle position of the body (1) near the left end, and an arc-shaped installation groove for arranging the first limiting portion (3) is provided in the second bracket (12); A third bracket (13), the third bracket (13) being integrally arranged at the right end of the body (1), and a transverse through hole for arranging the second limiting portion (4) and the third limiting portion (5) is provided in the third bracket (13); A fourth bracket (14) is slidably mounted on the front side of the machine body (1), and the fourth bracket (14) is located between the second bracket (12) and the third bracket (13). The fourth bracket (14) is used to set the detector (6).

3. The fuel tank partition welding machine according to claim 2, characterized in that: The welding device (2) comprises: A lifting frame (21), wherein the lifting frame (21) is arranged on the first bracket (11) through a vertical mounting slot; A telescopic frame (22), wherein the telescopic frame (22) is horizontally slidably mounted on the lifting frame (21); A welding gun (23) is fixedly mounted on the telescopic frame (22).

4. The fuel tank partition welding machine according to claim 3, characterized in that: The first limiting portion (3) comprises: A load-bearing turntable (31), wherein the load-bearing turntable (31) is rotatably mounted on the second bracket (12) through an arc-shaped mounting groove; A center hole (32), the center hole (32) is opened at the center position of the load-bearing turntable (31), and the center hole (32) is used for the movable suit box; Radial guide holes (33), the number of the radial guide holes (33) is two, and the two radial guide holes (33) are symmetrically opened at two sides of the central hole (32); A first elastic clamping member (34), wherein the first elastic clamping member (34) is disposed in the radial guide hole (33), and the first elastic clamping member (34) movably extends into the central hole (32); A damping swivel ring (35), the damping swivel ring (35) is rotatably mounted on the load-bearing turntable (31); A crescent bump (36), the crescent bump (36) is integrally welded to the damping swivel ring (35), and the crescent bump (36) is in movable contact with the first elastic clamping member (34).

5. The fuel tank partition welding machine according to claim 4, characterized in that: The second limiting portion (4) includes: A translation cross bar (41), the translation cross bar (41) is slidably mounted in the third bracket (13) through a transverse through hole; A U-shaped flipping frame (42), the U-shaped flipping frame (42) is rotatably connected to the translation cross bar (41), and a right-angle long hole (45), a front-end long hole (46) and a limiting through hole (47) are formed in the U-shaped flipping frame (42); Synchronous telescopic rods (43), the number of the synchronous telescopic rods (43) is two, and the two synchronous telescopic rods (43) both slidably penetrate through the U-shaped flipping frame (42); A double-layer limiting end cap (44), the double-layer limiting end cap (44) is integrally connected to one end of the synchronous telescopic rod (43), and the double-layer limiting end cap (44) is movably inserted into the opening of the box body; The second limiting portion (4) further includes: A winding roller (48), the winding roller (48) is rotatably mounted in the right-angle long hole (45); A steering sprocket (49), the steering sprocket (49) is rotatably mounted in the front-end long hole (46); A second elastic clamping member (410), the second elastic clamping member (410) is movably sleeved in the limiting through hole (47); A reciprocating rack (411), the reciprocating rack (411) is integrally connected to the other end of the synchronous telescopic rod (43); A reciprocating gear (412), the reciprocating gear (412) is key-connected to the winding roller (48), and the reciprocating gear (412) is meshed and connected with the reciprocating rack (411); A traction chain (413), the traction chain (413) is fixedly connected to the winding roller (48) and the second elastic clamping member (410) at different positions on the opposite side through the steering sprocket (49).

6. The fuel tank partition welding machine according to claim 5, characterized in that: The third limiting portion (5) includes: A hollow moving rod (51), the hollow moving rod (51) is slidably sleeved in the double-layer limiting end cap (44); A limiting baffle (52), the limiting baffle (52) is integrally welded to the hollow moving rod (51); A driving rod (53), the driving rod (53) is slidably sleeved in the hollow moving rod (51); A steering swing rod (54), the steering swing rod (54) is rotatably mounted in the hollow moving rod (51) and the limiting baffle (52), and the steering swing rod (54) is movably pulled by the driving rod (53); A right-angle inserting rod (55), the right-angle inserting rod (55) is slidably sleeved in the limiting baffle (52), the right-angle inserting rod (55) is movably pulled by the steering swing rod (54), and the right-angle inserting rod (55) is movably inserted into the opening of the hollow plate; A storage slot (56), the storage slot (56) is formed in one end of the right-angle inserting rod (55) that movably penetrates through the hollow plate; A limiting groove (57), the limiting groove (57) is formed in the storage slot (56); A driving block (58), the driving block (58) is slidably sleeved in the limiting groove (57); The limit rocker (59) is rotatably installed in the storage slot opening (56), and the limit rocker (59) is movably pulled by the driving block (58).

7. The fuel tank partition welding machine according to claim 6, characterized in that: A first connecting rod (510) is pin-connected between the driving rod (53) and one end of the steering swing rod (54). A traction long hole (511) is formed in the other end of the steering swing rod (54), and a traction long bolt (512) that is integrally connected to the right-angle insertion rod (55) and sleeved in the traction long hole (511) in a sliding manner is provided.

8. The fuel tank partition welding machine according to claim 7, characterized in that: A second connecting rod (513) is pin-connected between the driving block (58) and one end of the limit rocker (59).

9. The fuel tank partition welding machine according to claim 8, characterized in that: The detector (6) includes: A first syringe (61) that is fixedly installed on the fourth bracket (14), and the first syringe (61) is used to spray a penetrant onto the weld between the box body and the hollowed-out plate. A second syringe (62) that is fixedly installed on the fourth bracket (14), and the second syringe (62) is used to spray a developer onto the weld between the box body and the hollowed-out plate.

10. The method for using the fuel tank partition welding machine according to claim 9, characterized in that: The usage method includes the following steps: Step S1: Horizontally place the box body through the central hole (32) in the load-bearing turntable (31) so that one end of the box body is fixedly sleeved on the double-layer limit end cover (44). Control the damping rotating ring (35) to deflect and fix it, and use the crescent bump (36) to squeeze the first elastic clamping member (34) until it抵触 the outer wall of the right end of the box body. Step S2: Control the translation cross bar (41) to translate to the right, so that the U-shaped flipping frame (42)带动 the double-layer limit end cover (44) to move to the right synchronously. After being挤压 by the box body, the double-layer limit end cover (44)带动 the synchronous telescopic rod (43) to move to the left. The synchronous telescopic rod (43)带动 the reciprocating rack (411) to move, and drives the winding roller (48) to rotate through the reciprocating gear (412) to wind the traction chain (413). Use the traction chain (413) to牵引 the second elastic clamping member (410) at the opposite position until it夹持 the outer wall of the left end of the box body. Step S3: Push the hollowed-out plate into the box body to the welding position. Control the driving rod (53) to move to drive the steering swing rod (54) to deflect. The steering swing rod (54) supports the right-angle insertion rod (55) to move horizontally until it penetrates the hollowed-out plate. Control the driving block (58) to move, and support the limit rocker (59) to deflect outward from the storage slot opening (56) through the second connecting rod (513) to perform limit fixation on the hollowed-out plate inside the box body. Step S4: Control the lifting frame (21) to vertically lift and lower on the first bracket (11). On the lifting frame (21), control the telescopic frame (22) to move horizontally until the welding torch (23) extends into the box body. Use the welding torch (23) to perform spot welding on the box body and the hollowed-out plate. By controlling the U-shaped flipping frame (42) to rotate step by step on the translation cross bar (41), and then adjusting the position of the welding torch (23) through the lifting frame (21) to complete circumferential welding. Step S5, controlling the fourth bracket (14) to move left and right, controlling the first injector (61) on the fourth bracket (14) to spray a penetrant onto the weld between the box body and the hollow plate, and controlling the second injector (62) to spray a developer onto the weld between the box body and the hollow plate after the developer is allowed to evaporate, and observing whether there is a welding blind area in the weld between the box body and the hollow plate through the developer.

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