CN206811302U

CN206811302U - Be welded positioning fixture

Info

Publication number: CN206811302U
Application number: CN201720441778.5U
Authority: CN
Inventors: 黄昌剑; 宋胜胜; 尹超
Original assignee: Guangzhou Gac Mould Stamping Co Ltd
Current assignee: Guangzhou Gac Mould Stamping Co Ltd
Priority date: 2017-04-25
Filing date: 2017-04-25
Publication date: 2017-12-29
Anticipated expiration: 2027-04-25

Abstract

It is welded positioning fixture the utility model discloses one kind, including bearing, conductive plate, alignment pin and elastic component, alignment pin is fixedly connected with bearing, conductive plate, elastic component is socketed on alignment pin, conductive plate side is bonded with bearing, opposite side contradicts with elastic component, conductive plate is provided with pin-and-hole, alignment pin includes guide way and positioning body, positioning body is contained in pin-and-hole with guide way, fit-up gap be present between guide way and pin-and-hole hole wall, positioning body is fitted close with pin-and-hole hole wall, under the effect of welding gun clamping force, conductive plate is axially moved along guide way, and compression elastic piece, after welding gun release, under elastic component rebound effect, conductive plate recovers to the state being bonded with bearing.Fit-up gap be present between guide way and pin-and-hole hole wall in the utility model, it is ensured that conductive plate can move up and down along guide way；Positioning body is fitted close with pin-and-hole hole wall, it is ensured that conductive plate returns to same position every time under elastic component rebound effect.

Description

Be welded positioning fixture

Technical field

It the utility model is related to positioner, more particularly to one kind is welded positioning fixture.

Background technology

The white body appearance members such as car door, A posts are in welding process, therefore, to assure that impression of the pad surface without influence outward appearance, The problems such as splashing.Practices well has two kinds at present：One kind is as gun welder electrode cap, to obtain good weldering using ordinary telegram polar cap Connect outward appearance；Another kind is that two electrode caps of i.e. welding gun are not directly contacted with plate, but are carried in and plate both sides using weldering indirectly On the wide copper coin being tightly bonded, ensure weld strength using the high conductivity of copper coin, avoid gun welder electrode cap from leaving pressure in plate Trace.But two methods are respectively present following defect：The more common ball electrode cap welding contact area of ordinary telegram polar cap is big, easily damage Consumption, to ensure that quality needs frequent reconditioning, it is higher to manufacture maintenance cost；Between conductive plate location difficulty in welding process, before welding Minor variations occur for conductive Board position afterwards, welding quality are influenceed, in addition, to-be-welded pieces have rigging error, it is difficult to ensure copper coin It is brought into close contact with to-be-welded pieces.

Utility model content

For overcome the deficiencies in the prior art, the purpose of this utility model is to provide one kind and is welded positioning fixture, conductive Plate accurate positioning, and can ensure that conductive plate is brought into close contact with to-be-welded pieces.

The purpose of this utility model is realized using following technical scheme：

One kind is welded positioning fixture, under the effect of welding gun clamping force positioning clamp to-be-welded pieces, the positioning fixture that is welded Including bearing, conductive plate, alignment pin and elastic component, the alignment pin is fixedly connected with the bearing, the conductive plate, the bullet Property part be socketed on the alignment pin, the conductive plate side is bonded with the bearing, and opposite side and the elastic component contradict, The conductive plate is provided with pin-and-hole, and the alignment pin includes guide way and positioning body, and the positioning body accommodates with the guide way Fit-up gap, the positioning body and the pin-and-hole hole wall between the pin-and-hole, the guide way and the pin-and-hole hole wall be present It is fitted close, under welding gun clamping force effect, the conductive plate is axially moved along the guide way, and compresses the elasticity Part, after the welding gun release, under the elastic component rebound effect, the conductive plate recovers to the shape being bonded with the bearing State.

Further, the axial direction of the alignment pin is identical with the direction of the clamping force.

Further, the positioning body is in round table-like that the guide way is cylindrical.

Further, the bearing includes base, pressure arm, First Transition plate and the second rebound, and the conductive plate includes Upper conductive plate and lower conducting plate, the upper conductive plate and the lower conducting plate be located at the to-be-welded pieces both sides, the pressure arm and The base rotation connection, the First Transition plate are fixedly connected with the pressure arm, the upper conductive plate and the First Transition Plate is bonded, and the lower conducting plate is bonded with second rebound.

Further, the First Transition plate is parallel to each other with second rebound.

Further, between the First Transition plate and the pressure arm, between second rebound and the base Provided with pad.

Further, the conductive plate is the copper coin of high conductivity, and the electricity with the welding gun is provided with the conductive plate The depression that cartridge coordinates, the edges of boards that the conductive plate is bonded with the bearing are provided with chamfering.

Further, the alignment pin is provided with screw, and the alignment pin is fixed on described by screw through the screw Bearing, the alignment pin also include baffle plate, and the elastic component is between the baffle plate and the conductive plate.

Further, the elastic component is spring.

Further, the conductive plate at least two, two alignment pins are at least installed on each conductive plate.

Compared with prior art, the beneficial effects of the utility model are：Assembly building be present between guide way and pin-and-hole hole wall Gap, it is ensured that conductive plate can move up and down along guide way；Positioning body is fitted close with pin-and-hole hole wall, it is ensured that conductive plate returns in elastic component Same position is returned to every time under elastic force effect.

Brief description of the drawings

Fig. 1 is that the utility model one is welded a stereogram of positioning fixture；

Fig. 2 is the front view of positioning fixture of being welded shown in Fig. 1；

Fig. 3 is the partial sectional view of positioning fixture of being welded shown in Fig. 1；

Fig. 4 is enlarged drawing of the positioning fixture at A that be welded shown in Fig. 3；

Fig. 5 is a stereogram of alignment pin shown in Fig. 1；

Fig. 6 is the application state figure of positioning fixture of being welded shown in Fig. 1.

In figure：100th, be welded positioning fixture；10th, bearing；11st, base；12nd, pressure arm；13rd, First Transition plate；14th, the second mistake Cab apron；15th, pad；20th, alignment pin；21st, screw；22nd, baffle plate；23rd, guide way；24th, positioning body；30th, conductive plate；31st, led on Electroplax；32nd, lower conducting plate；33rd, it is recessed；34th, pin-and-hole；35th, chamfering；40th, elastic component；200th, to-be-welded pieces；300th, welding gun.

Embodiment

Below, with reference to accompanying drawing and embodiment, the utility model is described further：

As Figure 1-4, it is a kind of be welded positioning fixture 100 include bearing 10, be fixedly connected with bearing 10 alignment pin 20, The conductive plate 30 and elastic component 40 being socketed on alignment pin 20.

Bearing 10 includes base 11, pressure arm 12, First Transition plate 13, the second rebound 14 and pad 15.Pressure arm 12 is to turn over Rotaring cylinder, U-shaped, U-shaped mouth end is rotatablely connected with base 11, and the other end stretches out to be fixed with First Transition plate 13 by screw Connection.Second rebound 14 is directly fixedly connected with base 11 by screw.First Transition plate 13 and the second rebound 14 are mutual It is parallel.In pressure arm 12 and the joint place of First Transition plate 13, pad 15 is installed in the joint place of 11 and second rebound of base 14 respectively.Pad Piece 15 uses adjust pad, it is ensured that during assembling between pressure arm 12 and First Transition plate 13, between the rebound 14 of base 11 and second Relative position accurately and reliably.

With continued reference to Fig. 5, alignment pin 20 is integrally formed, and center is provided with screw 21, and screw 21 is through hole.Alignment pin 20 includes Baffle plate 22, guide way 23 and positioning body 24.The one end of guide way 23 connects baffle plate 22, other end connection and positioning body 24.Guide way 23 be the cylinder of even thickness, the truncated cone-shaped of the radial dimension gradual change of positioning body 24, and the radial direction minimum dimension of positioning body 24 is big In the radial dimension of guide way 23.In another embodiment, guide way 23 is in rectangular-shape, 24 trapezoidal mesa-shaped of positioning body.

Conductive plate 30 is the copper coin of high conductivity, including the upper conductive plate 31 being oppositely arranged and lower conducting plate 32, upper conduction Plate 31 is identical with the structure of lower conducting plate 32.Depression 33 and pin-and-hole 34 are equipped with conductive plate 30.Elastic component 40 is spring part.

Alignment pin 20 is fixed on the rebound 14 of First Transition plate 13 or second by screw through screw 21.Upper conductive plate 31 with First Transition plate 13 is bonded, and lower conducting plate 32 is bonded with the second rebound 14.First Transition plate 13 is distinguished with the second rebound 14 At least two alignment pins 20 are fixedly mounted, to limit the free degree of upper conductive plate 31 and lower conducting plate 32.Elastic component 40 is socketed on fixed Position pin 20, and between baffle plate 22 and conductive plate 30.Alignment pin 20 makes conductive plate 30 be socketed in alignment pin 20 through pin-and-hole 34 On.Fit-up gap be present between the guide way 23 and the wall of pin-and-hole 34 of alignment pin 20, it is ensured that conductive plate 30 can be along guide way about 23 Slide, sliding process realizes the compression or resilience of elastic component 40.The positioning body 24 of alignment pin 20 is closely matched somebody with somebody with the inwall of pin-and-hole 34 Close, it is ensured that the uniformity of position when conductive plate 30 is brought into close contact with the rebound 14 of First Transition plate 13 or second.

With continued reference to Fig. 6, in use, to-be-welded pieces 200 are placed on and are welded after station, pressure arm 12 is relative to 10 turns of bearing Dynamic, conductive plate 31 moves to to-be-welded pieces 200 in drive, and upper conductive plate 31 is located at to-be-welded pieces 200 respectively with lower conducting plate 32 Both sides, and be parallel to each other.Apply clamping force, upper conductive plate 31 and lower conducting plate 32 in the welding process of welding gun 300 along alignment pin 20 slide axially and compression elastic piece 40, to-be-welded pieces 200 is brought into close contact with conductive plate 30.Two electrode points of welding gun 300 It is respectively accommodated at the depression 33 on conductive plate 31 and lower conducting plate 32, it is ensured that welding gun 300 steps up position a little when welding every time Put consistent.After the completion of welding, welding gun 300 discharges, and in the presence of the screen resilience of elastic component 40, conductive plate 30 returns to and First Transition The state that the rebound 14 of plate 13 or second is brought into close contact.Because the positioning body 24 of alignment pin 20 is closely matched somebody with somebody with the inwall of pin-and-hole 34 Close, the slip front and back position of conductive plate 30 is consistent, realizes the positioning of conductive plate 30, reduces welding error.In addition, conductive plate 30 and branch 10 contact positions of seat are provided with chamfering 35, contribute to conductive plate 30 after the completion of further reducing welding to return to initial bit after setting chamfering 35 The resistance put.

It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various Corresponding change and deformation, and all these changes and deformation should all belong to the protection of the utility model claims Within the scope of.

Claims

The positioning fixture 1. one kind is welded, the positioning clamping to-be-welded pieces under the effect of welding gun clamping force, it is characterised in that：It is described to be welded Positioning fixture includes bearing, conductive plate, alignment pin and elastic component, and the alignment pin is fixedly connected with the bearing, the conduction Plate, the elastic component are socketed on the alignment pin, and the conductive plate side is bonded with the bearing, opposite side and the bullet Property part contradict, the conductive plate is provided with pin-and-hole, and the alignment pin includes guide way and positioning body, and the positioning body is led with described Be contained in the pin-and-hole to body, fit-up gap between the guide way and the pin-and-hole hole wall be present, the positioning body with it is described Pin-and-hole hole wall is fitted close, and under welding gun clamping force effect, the conductive plate is axially moved along the guide way, and is compressed The elastic component, after welding gun release, under the elastic component rebound effect, the conductive plate recover to the bearing The state of fitting.
2. be welded positioning fixture according to claim 1, it is characterised in that：The axial direction of the alignment pin and the clamping force Direction is identical.
3. be welded positioning fixture according to claim 2, it is characterised in that：The positioning body is in round table-like, the guide way It is cylindrical.
4. be welded positioning fixture according to claim 1, it is characterised in that：The bearing includes base, pressure arm, First Transition Plate and the second rebound, the conductive plate include upper conductive plate and lower conducting plate, the upper conductive plate and the lower conducting plate position In the to-be-welded pieces both sides, the pressure arm is connected with the base rotation, and the First Transition plate is fixed with the pressure arm to be connected Connect, the upper conductive plate is bonded with the First Transition plate, and the lower conducting plate is bonded with second rebound.
5. be welded positioning fixture according to claim 4, it is characterised in that：The First Transition plate and second rebound It is parallel to each other.
6. be welded positioning fixture according to claim 5, it is characterised in that：Between the First Transition plate and the pressure arm, Pad is equipped between second rebound and the base.
7. be welded positioning fixture according to claim 1, it is characterised in that：The conductive plate is the copper coin of high conductivity, The conductive plate is provided with the depression coordinated with the electrode tip of the welding gun, and the edges of boards that the conductive plate is bonded with the bearing are set There is chamfering.
8. be welded positioning fixture according to claim 1, it is characterised in that：The alignment pin is provided with screw, and screw passes through The alignment pin is fixed on the bearing by the screw, and the alignment pin also includes baffle plate, and the elastic component is located at the gear Between plate and the conductive plate.
9. be welded positioning fixture according to claim 8, it is characterised in that：The elastic component is spring.
10. be welded positioning fixture according to claim 1, it is characterised in that：The conductive plate at least two, it is each described Two alignment pins are at least installed on conductive plate.