CN205520017U - Welding bridging device - Google Patents

Abstract

The utility model relates to an earthing device that white car body welding used. A welding bridging device, includes the spring that lap joint, pendulum rod and messenger's pendulum rod rise immediately, the lower extreme of pendulum rod is equipped with the articulated joint, the lap joint is connected the upper end of pendulum rod. The utility model provides a can be at white automobile body automatic overlap joint welding bridging device to the white automobile body during through the assembly line, solved and form that the influence that the current loop existed produces efficiency, intensity of labour is big and weld the problem of quality uniformity difference through the bonding.

Description

Welded lap device

Technical field

This utility model relates to the grounding device of body in white welding, particularly relates to a kind of welded lap device.

Background technology

In body in white manufacture process, owing to body structure is complex, in the middle of routine work, spot welding can not complete all of weld task, and some station needs to use two guarantor's welderings.

CO₂Gas shielded arc welding is to utilize CO₂Gas is as the melt pole electrical arc soldering method of protective gas.This method is with CO₂Gas, as protection medium, makes electric arc and molten bath isolate with surrounding air, prevents oxygen in air, nitrogen, hydrogen to molten drop and the illeffects of molten pool metal, thus obtains excellent mechanical protection performance.Production usually utilizes special welding gun, forms enough CO₂Gas blanket, relies on the arc heat between welding wire and weldment to weld.Current loop need to be formed during welding.Form the method returned during existing welding body in white and form current loop for bonding on body in white, thus need repair welding or the place reprocessed to weld.China Patent No. be 2011204451736, Authorization Notice No. is CN202308369u, i.e. discloses a kind of existing bonding in the patent document of entitled " sawing machine shape bonding terminal ".Existing bonding has the disadvantage that when overlapping that each body in white has through streamline and carries out a lap works, affects vehicle body production efficiency, adds labor intensity；And the concordance of the position being overlapped on body in white due to each bonding is poor, welding quality (difference of position can cause current intensity different) can be affected.

Utility model content

This utility model provides and a kind of can automatically snap into the welded lap device on body in white at body in white through streamline, solve by bonding formed existing for current loop affect generation efficiency, labor intensity is big and welding quality concordance is poor problem.

More than technical problem is that and solved by following technical proposal: a kind of welded lap device, including lap joint, fork with make the spring that fork erects, the lower end of described fork is provided with articulated joint, described lap joint is connected to the upper end of described fork.During use, this utility model is hinged on the body in white of the metal base plate of white body production-line through the out-of-date position to pass through from the upper side by articulated joint, the ground terminal of welding machine is also shelved on the metal base plate on body production-line, when body in white moves ahead and time above this utility model under the effect of dependency structure on a production line, vehicle body is depressed into lap joint, under the action of the spring lap joint and is connected to together with body in white and forms loop, has welded rear body in white and has been free to pass through next process.Next body in white overlaps again automatically through out-of-date, thus saves artificial overlap joint action and can produce continuously.

This utility model also includes base, and the lower end of described fork is articulated with described base by described articulated joint, and one end of described spring links together with described fork, the other end links together with described base.Being fixed together with streamline by base during use, it is of the present utility model fixing to realize, and it is convenient to install during this utility model.

As preferably, described spring is extension spring.Good reliability when making vertical rod reset.

As preferably, described spring housing is provided with support set.Bending deformation, good reliability during work is produced during being prevented from telescopic spring.

This utility model also includes the gag lever post limiting described fork swaying direction.It is prevented from fork not swing according to direction initialization and cause lap joint reliably can not be connected to phenomenon together with body in white and produce, improve good reliability during use.

As preferably, described articulated joint is arc plate structure.Reliability when same body in white abuts can be improved.

As preferably, the two ends of described lap joint are less than the middle part of lap joint.Can effectively prevent from this utility model from producing the phenomenon hindering body in white to pass through to produce.

This utility model has an advantage that portable construction, it is simple to make；Processing cost is low, takes up room little, can configure in a large number when production line；The concordance of welding quality can be improved；Need not manually overlap, automaticity is good, it is possible to increase vehicle body production efficiency, reduction labor intensity.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model.

Fig. 2 is that this utility model uses view.

In figure: base 1, fork 2, articulated joint 21, lap joint 3, spring 4, support set 41, gag lever post 5, white body production-line 6, metal base plate 61, welding machine 7, ground terminal 71, body in white 8.

Detailed description of the invention

With embodiment, this utility model is further described below in conjunction with the accompanying drawings.

Seeing Fig. 1, a kind of welded lap device, including base 1, fork 2, lap joint 3, spring 4 and gag lever post 5.

Base 1 is slab construction.Base 1 is made for conductive material.

Fork 2 is made for conductive material.The lower end of fork 2 is provided with articulated joint 21.Fork 2 by articulated joint 21(also known as hinge) with base 1 hinged and realize be mechanically connected to conduct.

Lap joint 3 is made for conductive material.Lap joint 3 is arc plate structure.The two ends (two ends, left and right in figure) of lap joint 3 are less than the middle part of lap joint.

Spring 4 extension spring.One end of spring 4 links together with base 1, the other end links together with the middle part of fork 2.Spring 4 is arranged with support set 41.Spring 4 makes fork 2 be maintained at raised state.

When gag lever post 5 is connected to base 1.Gag lever post 5 is between fork 2 and spring 4.Gag lever post 5 is for limiting the maximum angle of fork counter-clockwise swing.

See Fig. 2, during use, base 1 is welded on and on the metal base plate 61 of white body production-line 6, realizes installation of the present utility model.The balance staff installing rear fork 2 is perpendicular to the bearing of trend of white body production-line 6.The ground terminal 71 of welding machine 7 is also secured on metal base plate 61, thus realizes the lap joint 3 electrical connection with welding machine 7.When body in white 8 moves to overhead of the present utility model under the effect of associated mechanisms on white body production-line 6, body in white presses for 8 times lap joint 3 that fork 2 is rotated clockwise, under the effect of spring 4, lap joint 3 is connected to together with body in white 8 and realizes body in white 8 and connect with the earth polar of welding 7, the most i.e. can carry out weld job, after having welded, then body in white 8 can move freely above next process, and then next body in white repeats above-mentioned operation process and realizes welding circuit and formed.

Claims (7)

1. a welded lap device, including lap joint (3), it is characterised in that also include fork (2) and the spring (4) making fork erect, the lower end of described fork (2) is provided with articulated joint (21), and described lap joint (3) is connected to the upper end of described fork (2).

Welded lap device the most according to claim 1, it is characterized in that, also include base (1), the lower end of described fork (2) is articulated with described base (1) by described articulated joint (21), and one end of described spring (4) links together with described fork (2), the other end links together with described base (1).

Welded lap device the most according to claim 2, it is characterised in that described spring (4) is extension spring.

Welded lap device the most according to claim 3, it is characterised in that described spring (4) is arranged with support set (41).

5. according to the welded lap device described in claim 1 or 2 or 3 or 4, it is characterised in that also include the gag lever post (5) limiting described fork swaying direction.

6. according to the welded lap device described in claim 1 or 2 or 3, it is characterised in that described articulated joint (3) is arc plate structure.

Welded lap device the most according to claim 6, it is characterised in that the two ends of described lap joint (3) are less than the middle part of lap joint.