Fuel tank cap hinge welding device

Abstract

The utility model discloses an oil tank cover hinge welding device, which is applied to the technical field of hinge welding devices, and is characterized by comprising a welding seat and a mounting frame fixedly connected to the welding seat along the vertical direction, the bottom of the mounting frame is fixedly connected with a positioning supporting seat used for positioning and supporting the fuel tank cover outer plate and a first pressing assembly used for pressing and fixedly connecting the fuel tank cover outer plate to the positioning supporting seat, and the top of the mounting frame is movably connected with a downward pressing welding seat in the vertical direction based on a lifting assembly. A first positioning and fixing assembly used for positioning and fixing a hinge shaft and a second positioning and fixing assembly used for positioning and fixing a fuel tank cover hinge are fixedly connected to the pressing welding base, and puppet welding assemblies used for welding the two ends of the hinge shaft to a fuel tank cover outer plate are fixedly connected to the two ends of the pressing welding base. The welding device has the technical effects of good welding effect and high welding efficiency.

Description

TECHNICAL FIELD

[0001] The utility model relates to hinge welding device technical field, especially relate to a tank cap hinge welding device. BACKGROUND

[0002] Generally, the rear body side of the automobile is provided with a fuel filler for filling fuel into the oil tank of the automobile, and a tank cover is installed on the body side outside the fuel filler. Figure 1 As shown in the figure, the tank cover comprises a tank cover outer plate and a tank cover hinge, the tank cover outer plate covers the fuel filler, and the tank cover hinge is used for connecting the tank cover outer plate and the body. A hinge shaft with a leaf spring is arranged on the tank cover hinge, which is used for providing a rotation center for the tank cover outer plate. When processing, the two ends of the hinge shaft need to be spot welded and fixed on the tank cover outer plate. In the prior art, the tank cover outer plate and the tank cover hinge are positioned by a positioning jig, and then manual spot welding is performed. However, on the one hand, the shape of the tank cover outer plate is irregular, and the welding effect of manual spot welding is poor, thereby affecting the service life of the hinge shaft. On the other hand, the welding efficiency of manual spot welding is not high. Therefore, it is necessary to design a device capable of automatically welding the tank cover hinge. SUMMARY

[0003] The utility model provides a tank cover hinge welding device, and the welding effect is good, and the welding efficiency is high.

[0004] The above technical purpose of the utility model is realized by the following technical scheme: a tank cover hinge welding device, comprising a welding seat and a mounting frame fixedly connected to the welding seat in the vertical direction; the bottom of the mounting frame is fixedly connected with a positioning support seat for positioning and supporting the tank cover outer plate and a first compression assembly for compressively fixedly connecting the tank cover outer plate to the positioning support seat, and the top of the mounting frame is movably connected with a downward welding seat in the vertical direction based on a lifting assembly; the downward welding seat is fixedly connected with a first positioning and fixing assembly for positioning and fixing the hinge shaft and a second positioning and fixing assembly for positioning and fixing the tank cover hinge, and the two ends of the downward welding seat are fixedly connected with a robot welding assembly for welding the two ends of the hinge shaft to the tank cover outer plate.

[0005] The utility model is further provided as follows: the positioning support seat comprises a fixed plate fixedly connected to the mounting frame and a plurality of abutting support blocks fixedly connected to the fixed plate and used for abutting and supporting the bottom of the tank cover outer plate, and the abutting support blocks are fixedly connected with first positioning pins matched with the positioning holes on the tank cover outer plate.

[0006] The utility model further sets up: first pressure assembly includes the hinged plate of hinged connection in fixed plate and fixed connection in the one end of hinged plate, first pressure block for abutting oil tank cover outer plate, the accommodating groove of accommodating first positioning pin is seted up on first pressure block, the fixed plate is hinged with the pressure cylinder of driving the hinged plate rotation, the telescopic end of pressure cylinder is hinged in the one end of hinged plate far from first pressure block.

[0007] The utility model further sets up: first positioning fixed component includes respectively and parallel fixed connection in the elastic positioning component of down pressure welding seat and rigid positioning component, rigid positioning component includes along the vertical direction fixed connection in the rigid positioning block of down pressure welding seat and the positioning groove for positioning hinge shaft is seted up in rigid positioning block, the elastic positioning component includes the elastic positioning sheet of symmetry fixed connection in down pressure welding seat, the arc fixed part of arc structure for fixed hinge shaft is equipped respectively on elastic positioning sheet, and outward expansion setting is used for the outer expansion part of hinge shaft into arc fixed part.

[0008] The utility model further sets up: second positioning fixed component includes fixed connection in down pressure welding seat, abutment positioning block for abutting oil tank cover hinge inner wall and convex fixed connection in abutment positioning block, second positioning pin for with the positioning hole cooperation on oil tank cover hinge, down pressure welding seat is fixedly connected with second pressure assembly for tightly fixed connection in abutment positioning block on oil tank cover hinge.

[0009] The utility model further sets up: second pressure assembly includes fixed connection in the telescopic cylinder of rotation of down pressure welding seat and fixed connection in the telescopic end of telescopic cylinder, second pressure block for abutting oil tank cover hinge outer wall.

[0010] The utility model further sets up: still fixedly equipped with in-place sensor for detecting oil tank cover hinge on down pressure welding seat.

[0011] The utility model further sets up: the spot welding block of puppet welding assembly includes symmetry fixed connection in down pressure welding seat, and the spot welding block is circumscribed welding machine.

[0012] Summarized above, the utility model has following beneficial effect:

[0013] 1. The application is characterized in that the positioning and fixing of the outer plate of the oil tank cover is realized by fixing the positioning support block at the bottom of the mounting frame and the first pressing assembly, the positioning and fixing of the hinge shaft is realized by fixing the first positioning and fixing assembly for positioning and fixing the hinge shaft and the second positioning and fixing assembly for positioning and fixing the oil tank cover hinge on the pressing welding seat based on the lifting assembly at the top of the mounting frame, the positioning and fixing of the whole oil tank cover is realized, and finally the puppet welding assembly is arranged at both ends of the welding seat to realize the welding of the two ends of the hinge shaft to the outer plate of the oil tank cover, which avoids the poor effect of manual spot welding, ensures the welding quality and improves the welding efficiency.

[0014] 2. The first positioning and fixing assembly is characterized in that the elastic positioning assembly and the rigid positioning assembly are arranged side by side on the pressing welding seat, when the hinge shaft is positioned, the rigid positioning block is lowered when the lifting assembly drives the pressing welding seat, so that the hinge shaft enters the positioning groove to complete the preliminary positioning of the hinge shaft, at the same time, the hinge shaft passes through the outward expansion part, the elastic positioning part is opened outward to make the hinge shaft enter the arc-shaped fixed part to prevent the hinge shaft from rotating, the positioning and fixing of the hinge shaft is realized by the elastic positioning assembly and the rigid positioning assembly, which avoids the movement of the hinge shaft during welding to affect the welding effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structural schematic view of the oil tank cover of the embodiment;

[0016] Figure 2 is a structural schematic view of the whole of the embodiment;

[0017] Figure 3 is a structural schematic view of the positioning support seat and the first pressing assembly of the embodiment;

[0018] Figure 4 is Figure 3 is an enlarged schematic view of part A of

[0019] Figure 5 is a structural schematic view of the first positioning and fixing assembly and the second positioning and fixing assembly of the embodiment;

[0020] Figure 6 is Figure 5 is an enlarged schematic view of part B of

[0021] Figure 7 is a structural schematic view of the puppet welding assembly of the embodiment.

[0022] : 1, welding seat; 11, mounting frame; 2, positioning support seat; 21, fixed plate; 22, abutting support block; 23, first positioning pin; 3, first pressing assembly; 31, hinged plate; 32, first pressing block; 33, containing groove; 34, pressing cylinder; 4, lifting assembly; 5, downward pressing welding seat; 6, first positioning and fixing assembly; 61, elastic positioning assembly; 611, elastic positioning piece; 612, arc-shaped fixing portion; 613, outward expanding portion; 62, rigid positioning assembly; 621, rigid positioning block; 622, positioning groove; 7, second positioning and fixing assembly; 71, abutting positioning block; 72, second positioning pin; 73, second pressing assembly; 74, rotary telescopic cylinder; 75, second pressing block; 8, dummy welding assembly; 81, spot welding block; 82, welding machine; 9, oil tank cover; 91, oil tank cover outer plate; 92, oil tank cover hinge; 93, hinge shaft; 10, in-place sensor. DETAILED DESCRIPTION

[0023] The utility model will be further explained in detail below in combination with the drawings.

[0024] Embodiment:

[0025] Reference Figures 1 to 7 A kind of oil tank cover hinge welding device, including welding seat 1 and along vertical direction fixed connection installation frame 11 on welding seat 1, installation frame 11 bottom is fixedly connected with the first pressing assembly 3 for the positioning support seat 2 for supporting the positioning and fixing of oil tank cover 9 outer plate, and for the positioning and fixing of oil tank cover 9 outer plate, the first pressing assembly 3 for the positioning and fixing of oil tank cover 9 outer plate is fixedly connected on positioning support seat 2, lifting assembly 4 is movably connected with downward pressing welding seat 5 on the top of installation frame 11 based on along vertical direction, first positioning and fixing assembly 6 for positioning and fixing hinge shaft 93 and second positioning and fixing assembly 7 for positioning and fixing oil tank cover 9 hinge are fixedly connected on downward pressing welding seat 5, dummy welding assembly 8 for welding the both ends of hinge shaft 93 to the outer plate of oil tank cover 9 is fixedly connected on the both ends of downward pressing welding seat 5, by fixedly setting positioning support block on the bottom of installation frame 11 and first pressing assembly 3, the positioning and fixing of oil tank cover 9 outer plate is realized, by movably connecting downward pressing welding seat 5 on the top of installation frame 11 based on lifting assembly 4 along vertical direction and fixedly setting first positioning and fixing assembly 6 for positioning and fixing hinge shaft 93 and second positioning and fixing assembly 7 for positioning and fixing oil tank cover 9 hinge on downward pressing welding seat 5, the positioning and fixing of oil tank cover 9 as a whole are realized, finally, by setting dummy welding assembly 8 on the both ends of welding seat 1, the both ends of hinge shaft 93 are welded to the outer plate of oil tank cover 9, avoid the problem that manual spot welding effect is not good, guarantee the quality of welding.

[0026] Reference Figures 2 to 4Specifically, the positioning support base 2 comprises a fixed plate 21 fixedly connected to the mounting frame 11 and a plurality of abutting support blocks 22 fixedly connected to the fixed plate 21 and used for abutting against the bottom of the outer plate of the oil tank cover 9. The abutting support blocks 22 are provided with at least three groups of blocks for supporting the two ends and the middle position of the outer plate of the oil tank cover 9, respectively. A first positioning pin 23 protruding and fixedly connected to the abutting support blocks 22 is matched with a positioning hole on the outer plate of the oil tank cover 9. The first pressing assembly 3 comprises a hinged plate 31 hingedly connected to the fixed plate 21 and a first pressing block 32 fixedly connected to one end of the hinged plate 31 and used for abutting against the outer plate of the oil tank cover 9. An accommodating groove 33 for accommodating the first positioning pin 23 is formed in the first pressing block 32. A pressing cylinder 34 is hingedly connected to the fixed plate 21 and drives the hinged plate 31 to rotate. The extension end of the pressing cylinder 34 is hingedly connected to the end of the hinged plate 31 away from the first pressing block 32. When the positioning of the outer plate of the oil tank cover 9 is completed, the pressing cylinder 34 is retracted to drive the hinged plate 31 to rotate and thus drive the first pressing block 32 to press on the outer plate of the oil tank cover 9, thereby realizing the positioning and fixing of the outer plate of the oil tank cover 9.

[0027] Reference Figures 5 to 7 Specifically, the first positioning and fixing assembly 6 comprises an elastic positioning assembly 61 and a rigid positioning assembly 62 fixedly connected to the lower pressing and welding base 5, respectively. The rigid positioning assembly 62 comprises a rigid positioning block 621 fixedly connected to the lower pressing and welding base 5 in the vertical direction and a positioning groove 622 formed in the rigid positioning block 621 and used for positioning the hinge shaft 93. The elastic positioning assembly 61 comprises elastic positioning pieces 611 fixedly connected to the lower pressing and welding base 5, respectively. The elastic positioning pieces 611 are respectively provided with arc-shaped fixing portions 612 used for fixing the hinge shaft 93 and outwardly expanding portions 613 used for allowing the hinge shaft 93 to enter the arc-shaped fixing portions 612. When the positioning of the hinge shaft 93 is performed, the lower pressing and welding base 5 is driven by the lifting assembly 4, the rigid positioning block 621 is lowered to allow the hinge shaft 93 to enter the positioning groove 622 and thus complete the preliminary positioning of the hinge shaft 93. Meanwhile, the hinge shaft 93 passes through the outwardly expanding portions 613 and the elastic positioning pieces 611 are outwardly opened to allow the hinge shaft 93 to enter the arc-shaped fixing portions 612 and thus prevent the hinge shaft 93 from rotating. The positioning and fixing of the hinge shaft 93 are realized by the elastic positioning assembly 61 and the rigid positioning assembly 62, thereby avoiding the movement of the hinge shaft 93 during the welding process and thus affecting the welding effect.

[0028] Reference Figures 5 to 7, specifically, the second positioning and fixing assembly 7 comprises an abutting positioning block 71 fixedly connected to the lower pressing and welding seat 5 and used for abutting against the inner wall of the hinge of the fuel tank cover 9, and a second positioning pin 72 protrudingly fixedly connected to the abutting positioning block 71 and used for cooperating with the positioning hole on the hinge of the fuel tank cover 9, and the second pressing assembly 73 for pressing and fixedly connecting the hinge of the fuel tank cover 9 to the abutting positioning block 71 is fixedly connected to the lower pressing and welding seat 5. The second pressing assembly 73 comprises a rotary telescopic cylinder 74 fixedly connected to the lower pressing and welding seat 5 and a second pressing block 75 fixedly connected to the telescopic end of the rotary telescopic cylinder 74 and used for abutting against the outer wall of the hinge of the fuel tank cover 9, and the in-place sensor 10 for detecting the hinge of the fuel tank cover 9 is also fixedly arranged on the lower pressing and welding seat 5, and the hinge of the fuel tank cover 9 is positioned and fixed between the second pressing block 75 and the abutting positioning block 71, and the positioning of the hinge of the fuel tank cover 9 is realized through the second positioning pin 72.

[0029] Reference Figure 5 and Figure 7 , specifically, the dummy welding assembly 8 comprises a spot welding block 81 fixedly connected to the lower pressing and welding seat 5 in a symmetrical manner, and the welding machine 82 is connected to the spot welding block 81, and when the fuel tank cover 9 is completely positioned and fixed, the dummy welding assembly 8 is arranged at both ends of the welding seat 1 to realize welding of both ends of the hinge shaft 93 to the outer plate of the fuel tank cover 9.

[0030] Brief description of the use process: the outer plate of the fuel tank cover 9 is positioned and fixed by arranging the positioning and supporting block and the first pressing assembly 3 at the bottom of the mounting frame 11, the lower pressing and welding seat 5 is movably connected along the vertical direction based on the lifting assembly 4 at the top of the mounting frame 11, the first positioning and fixing assembly 6 for positioning and fixing the hinge shaft 93 and the second positioning and fixing assembly 7 for positioning and fixing the hinge of the fuel tank cover 9 are fixedly arranged on the lower pressing and welding seat 5, thereby realizing complete positioning and fixing of the fuel tank cover 9 as a whole, and finally the dummy welding assembly 8 is arranged at both ends of the welding seat 1 to realize welding of both ends of the hinge shaft 93 to the outer plate of the fuel tank cover 9.

[0031] This embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and those skilled in the art can make modifications with creative contributions according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. An oil tank cover hinge welding device, comprising a welding seat (1) and a mounting frame (11) fixedly connected to the welding seat (1) along a vertical direction; characterized in that, The mounting frame (11) is fixedly connected with a positioning support seat (2) for positioning and supporting the outer plate of the oil tank cover (9) and a first pressing assembly (3) for pressing and fixedly connecting the outer plate of the oil tank cover (9) to the positioning support seat (2) at the bottom, and the mounting frame (11) is movably connected with a downward pressing welding seat (5) along the vertical direction based on a lifting assembly (4) at the top, the downward pressing welding seat (5) is fixedly connected with a first positioning and fixing assembly (6) for positioning and fixing the hinge shaft (93) and a second positioning and fixing assembly (7) for positioning and fixing the hinge of the oil tank cover (9) at both ends, and the downward pressing welding seat (5) is fixedly connected with a puppet welding assembly (8) for welding the both ends of the hinge shaft (93) to the outer plate of the oil tank cover (9).

2. The oil filler cap hinge welding apparatus according to claim 1, wherein The positioning support seat (2) comprises a fixed plate (21) fixedly connected to the mounting frame (11) and a plurality of abutting support blocks (22) fixedly connected to the fixed plate (21) and used for abutting and supporting the bottom of the outer plate of the oil tank cover (9), and a first positioning pin (23) protrusively fixedly connected to the abutting support block (22) is matched with a positioning hole on the outer plate of the oil tank cover (9).

3. A tank cap hinge welding apparatus according to claim 2, wherein The first pressing assembly (3) comprises a hinged plate (31) hingedly connected to the fixed plate (21) and a first pressing block (32) fixedly connected to one end of the hinged plate (31) and used for abutting the outer plate of the oil tank cover (9), a containing groove (33) for containing the first positioning pin (23) is formed in the first pressing block (32), and a pressing cylinder (34) for driving the hinged plate (31) to rotate is hingedly connected to the fixed plate (21), and the telescopic end of the pressing cylinder (34) is hingedly connected to the end of the hinged plate (31) away from the first pressing block (32).

4. The oil filler cap hinge welding apparatus according to claim 1, wherein The first positioning and fixing assembly (6) comprises a flexible positioning assembly (61) and a rigid positioning assembly (62) fixedly connected side by side to the downward pressing welding seat (5), the rigid positioning assembly (62) comprises a rigid positioning block (621) fixedly connected to the downward pressing welding seat (5) along the vertical direction and a positioning groove (622) formed in the rigid positioning block (621) and used for positioning the hinge shaft (93), and the flexible positioning assembly (61) comprises flexible positioning pieces (611) fixedly connected to the downward pressing welding seat (5) in a symmetrical manner, and the flexible positioning pieces (611) are respectively provided with an arc-shaped fixing portion (612) in an arc-shaped structure and used for fixing the hinge shaft (93) and an outwardly expanding portion (613) arranged outwardly and used for allowing the hinge shaft (93) to enter the arc-shaped fixing portion (612).

5. The oil filler cap hinge welding apparatus according to claim 1, wherein The second positioning and fixing assembly (7) comprises an abutting positioning block (71) fixedly connected to the downward welding seat (5) and used for abutting the inner wall of the hinge of the fuel tank cover (9), and a second positioning pin (72) protruding and fixedly connected to the abutting positioning block (71) and used for cooperating with the positioning hole on the hinge of the fuel tank cover (9), and the downward welding seat (5) is fixedly connected with a second pressing assembly (73) used for pressing and fixedly connecting the hinge of the fuel tank cover (9) to the abutting positioning block (71).

6. An oil filler cap hinge welding apparatus according to claim 5, wherein The second pressing assembly (73) comprises a rotary telescopic cylinder (74) fixedly connected to the downward welding seat (5) and a second pressing block (75) fixedly connected to the telescopic end of the rotary telescopic cylinder (74) and used for abutting the outer wall of the hinge of the fuel tank cover (9).

7. A tank cap hinge welding apparatus according to claim 6, wherein The downward welding seat (5) is further fixedly provided with a position detection sensor (10) used for detecting the hinge of the fuel tank cover (9).

8. The oil filler cap hinge welding apparatus of claim 1 wherein, The puppet welding assembly (8) comprises a spot welding block (81) fixedly connected to the downward welding seat (5) in a symmetrical manner, and a welding machine (82) is connected to the spot welding block (81).

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