CN212239580U

CN212239580U - Auxiliary device for spot welding of thin-wall pipe fitting

Info

Publication number: CN212239580U
Application number: CN202020876086.5U
Authority: CN
Inventors: 陈杰华; 陈龙; 余朝辉
Original assignee: Wuhan Pujiang Yanpu Automobile Parts Co ltd
Current assignee: Wuhan Pujiang Yanpu Automobile Parts Co ltd
Priority date: 2020-05-22
Filing date: 2020-05-22
Publication date: 2020-12-29
Anticipated expiration: 2030-05-22

Abstract

The utility model discloses an auxiliary device for spot welding of thin-wall pipe fittings, which belongs to the welding field and comprises a base which is fixedly and vertically provided with a guide pillar, wherein the guide pillar is sleeved with a guide sleeve which can move up and down, the guide pillar extends out of the guide sleeve and the end part of the guide pillar is provided with a limiting snap spring; the scheme is that the chromium zirconium copper auxiliary plate acts between a welding clamp lower electrode and the thin-wall pipe fitting, so that the conductive area between the thin-wall pipe fitting and the chromium zirconium copper auxiliary plate is increased, the current density between the thin-wall pipe fitting and the chromium zirconium copper auxiliary plate is reduced, and the risk of welding through or welding crack of the thin-wall pipe fitting is further reduced.

Description

Auxiliary device for spot welding of thin-wall pipe fitting

Technical Field

The utility model relates to the field of welding technique, more specifically say, relate to an auxiliary device for thin-walled tube spare spot welding.

Background

In the spot welding process of the back row backrest of the passenger vehicle, the lower electrode of the robot directly acts on the thin-wall pipe fitting, the upper electrode applies certain pressure, and large current is passed, so that welding of the plate structure and the thin-wall pipe fitting is realized, but the thin wall breakdown or crack is probably caused due to the thin wall thickness of the thin-wall pipe fitting, and the product is unqualified.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved by the utility model

An object of the utility model is to overcome not enough among the prior art, provide an auxiliary device for thin-walled tube spare spot welding, through acting on the chromium zirconium copper accessory plate between soldering turret lower electrode and the thin-walled tube spare in this scheme, make the electrically conductive area between thin-walled tube spare and the chromium zirconium copper accessory plate increase, reduced the current density between thin-walled tube spare and the chromium zirconium copper accessory plate, and then reduced the risk that thin-walled tube spare was welded and is worn or the welding is split.

Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses an auxiliary device for spot welding of thin-wall pipe fittings, which comprises a fixed base, wherein a guide pillar is vertically arranged on the fixed base, a guide sleeve capable of moving up and down is sleeved on the guide pillar, the guide pillar extends out of the guide sleeve, and a limiting snap spring is arranged at the end part of the guide pillar;

the floating spring is arranged between the lower end face of the guide sleeve and the fixed base, the upper end face of the floating spring extends out of the bakelite bottom plate and is fixedly connected with the bakelite bottom plate, a connecting plate is arranged on the bakelite bottom plate, a chromium-zirconium-copper auxiliary plate with a suspended bottom surface is fixedly arranged on one side of the connecting plate, a matching groove matched with the circumferential side face of the thin-wall pipe fitting is formed in the upper end face of the chromium-zirconium-copper auxiliary plate, and the circumferential side face of one third of the thin-wall pipe fitting is attached to the matching.

As a further improvement of the utility model, the fixing base is provided with two guide pillars which are parallel to each other.

Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses an auxiliary device for thin-walled tube spare spot welding, wherein, through acting on the chromium zirconium copper accessory plate between soldering turret bottom electrode and the thin-walled tube spare, make the electrically conductive area between thin-walled tube spare and the chromium zirconium copper accessory plate increase, reduced the current density between thin-walled tube spare and the chromium zirconium copper accessory plate, and then reduced the risk that thin-walled tube spare was welded and is worn or weld and split, more importantly: the chromium-zirconium-copper auxiliary plate is provided with the matching groove matched with the thin-wall pipe fitting, so that the thin-wall pipe fitting is in surface contact with the chromium-zirconium-copper auxiliary plate in the welding process, the welding current is dispersed by the surface contact, and the thin-wall pipe fitting cannot be heated and blackened in the welding process.

(2) The utility model discloses an auxiliary device for thin-walled tube spare spot welding, wherein, set up floating spring through the lower terminal surface at the guide pin bushing, because floating spring has certain elastic action for the electrode upwards lifts up the in-process and has elasticity under the soldering turret, plays good tight effect in top, and then has improved the welding quality of thin-walled tube spare with the plate structure, and what still need explain in addition is: the great floating spring of elasticity floating range is through setting up here for when the welding tongs deviation of robot is great, floating spring also can float as required from top to bottom at will, and floating spring cover establishes on the guide pillar, makes floating spring longe-lived in the use, and the in-process stability that floats is high.

(3) The utility model discloses an auxiliary device for thin-walled tube spare spot welding, structural design is reasonable, and the principle is simple, convenient to popularize and use.

Drawings

Fig. 1 is a schematic structural diagram of an auxiliary device for spot welding of thin-walled tubes according to the present invention;

fig. 2 is a usage state diagram of the auxiliary device for spot welding of thin-wall pipe fittings of the present invention.

The reference numerals in the schematic drawings illustrate:

01. a fixed base; 02. a floating spring; 03. a limiting clamp spring; 04. a thin-walled tube; 05. a plate structure; 06. a chromium zirconium copper auxiliary plate; 061. a mating groove; 07. a bakelite soleplate; 08. a connecting plate; 09. a guide sleeve; 010. a guide post; 011. an electrode on the welding tongs; 012. electrode under the soldering turret.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.

Example 1

As shown in fig. 1 and fig. 2, the auxiliary device for spot welding of a thin-walled tube of the present embodiment includes a fixing base 01, a guide pillar 010 is vertically disposed on the fixing base 01, a guide sleeve 09 capable of moving up and down is sleeved on the guide pillar 010, the guide pillar 010 extends out of the guide sleeve 09, and a limit clamp spring 03 is disposed at an end of the guide pillar 010; a floating spring 02 is arranged between the lower end face of the guide sleeve 09 and the fixed base 01, the upper end face of the floating spring extends out of the bakelite bottom plate 07 and is fixedly connected with the bakelite bottom plate 07, a connecting plate 08 is arranged on the bakelite bottom plate 07, a chromium-zirconium-copper auxiliary plate 06 with a suspended bottom face is fixedly arranged on one side of the connecting plate 08, a matching groove 061 matched with the circumferential side face of the thin-wall pipe 04 is formed in the upper end face of the chromium-zirconium-copper auxiliary plate 06, and the circumferential side face of one third of the thin-wall pipe 04 is attached to the matching.

Specifically be equipped with two guide pillars 010 that are parallel to each other on unable adjustment base 01 of this embodiment, effectively improved auxiliary device's stability, and set up floating spring 02 through the lower terminal surface at guide pin bushing 09, because floating spring 02 has certain elastic action for electrode 012 lifts up the in-process upwards under the soldering turret and has elasticity, plays good tight effect in top, and then has improved the welding quality of thin-wall pipe 04 and plate structure 05, it is in addition still to explain: here is through setting up the great floating spring 02 of elasticity floating range for when the welding tongs deviation of robot is great, floating spring 02 also can float as required from top to bottom at will, and floating spring 02 cover establishes on guide pillar 010, makes floating spring 02 longe-lived in the use, and the in-process stability that floats is high.

When the welding clamp is used, the thin-wall pipe 04 is firstly placed in a matching groove 061 of a chromium-zirconium-copper auxiliary plate 06 of an auxiliary device, then an electrode 011 on a welding clamp of a robot is tightly abutted on a plate structure 05, a lower electrode 012 of the welding clamp is abutted on the lower end face of the chromium-zirconium-copper auxiliary plate 06 and lifts up the lower electrode 012 of the welding clamp, and the chromium-zirconium-copper auxiliary plate 06 is tightly abutted on the thin-wall pipe 04 under the action of a floating spring 02, so that the thin-wall pipe 04 is tightly contacted with the plate structure 05, and welding of a welding point at the position is carried out.

In this embodiment, the chromium zirconium copper auxiliary plate 06 acts between the electrode 012 and the thin-wall tube 04 of the welding tongs, so that the conductive area between the thin-wall tube 04 and the chromium zirconium copper auxiliary plate 06 is increased, the current density between the thin-wall tube 04 and the chromium zirconium copper auxiliary plate 06 is reduced, and further the risk of welding through or welding crack of the thin-wall tube 04 is reduced, and the chromium zirconium copper auxiliary plate 06 is provided with the matching groove 061 matched with the thin-wall tube 04, so that the thin-wall tube 04 and the chromium zirconium copper auxiliary plate 06 are in surface contact in the welding process, the welding current is dispersed by the surface contact, and further the thin-wall tube 04 does not appear the phenomenon of heating and blackening in the welding process, in addition, one third of the circumferential side surface of the thin-wall tube 04 is matched with the matching groove 061, and the contact of the area size does not affect the welding of the thin-wall tube 04 and the plate structure 05.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. An auxiliary device for spot welding of thin-wall pipe fittings comprises a fixed base (01) and is characterized in that: a guide pillar (010) is vertically arranged on the fixed base (01), a guide sleeve (09) capable of moving up and down is sleeved on the guide pillar (010), the guide pillar (010) extends out of the guide sleeve (09), and a limiting clamp spring (03) is arranged at the end part of the guide pillar (010);

a floating spring (02) is arranged between the lower end face of the guide sleeve (09) and the fixed base (01), the upper end face of the floating spring extends out of the bakelite bottom plate (07) and is fixedly connected with the bakelite bottom plate (07), a connecting plate (08) is arranged on the bakelite bottom plate (07), a chromium-zirconium-copper auxiliary plate (06) with a suspended bottom face is fixedly arranged on one side of the connecting plate (08), a matching groove (061) matched with the circumferential side face of the thin-wall pipe (04) is formed in the upper end face of the chromium-zirconium-copper auxiliary plate (06), and the circumferential side face of one third of the thin-wall pipe (04) is attached to the matching groove (061).

2. An auxiliary device for spot welding of thin-walled tubes according to claim 1, characterized in that: the fixed base (01) is provided with two guide posts (010) which are parallel to each other.