CN107552922A - A kind of minor diameter pipe die inner wall overlaying automatic welding wire feeder - Google Patents

Abstract

The invention discloses a kind of wire feeder of minor diameter pipe die inside surfacing automatic welder.In the original wire feeder of welding machine and increase nipple joint, wire-feeding pipe, steel fastener, bending device and copper reducing connecting tube between tip.Welding wire is exported by wire feeder, nipple joint, wire-feeding pipe, bending device from tip during welding.The device is goed deep into minor diameter pipe die, starts the control system of automatic welder, is sent into solder flux and welding wire, starts built-up welding.In weld deposit process, pipe die rotation, wire feeder is fed forward with automatic welder platform, completes the automatic surfacing of pipe die inwall.The present apparatus realizes minor diameter pipe die inner wall overlaying, avoids high-temperature flue gas scaling loss circuit, the device convenient disassembly, and the Quick-return of automatic welder can be achieved.

Description

A kind of minor diameter pipe die inner wall overlaying automatic welding wire feeder

Technical field

The present invention is applied to automatic welder built-up welding field, more particularly to the automatic welder of built-up welding minor diameter pipe die inner surface Wire feeder.

Background technology

For ductile iron pipe in centrifugal casting production technology, pipe die cost occupies higher proportion, no matter water-cooling type pipe dies or Thermodyn process pipe die, its inner surface are subjected to the high temperature of molten iron, higher for the material and performance requirement of the pipe die, it is especially desirable to There is good heat-resistant anti-fatigue performance, so pipe die is expensive.After pipe die uses certain life-span, inner surface produces heat fatigue cracking Line, easily causing ductile iron pipe can not be stripped so that pipe die is scrapped.In order to save pipe die cost, bead-welding technology is used to save pipe die Reuse.Its bead-welding technology be usually machine away inner surface segmentation crack, built-up welding, stress-removal processing, be worked into desired size, Then reuse.

For major diameter pipe die, automatic welding machine wire-feeding mechanism can meet to require into the size of pipe die, in pipe die Portion space is big, and the heat smoke of automatic welding can drain rapidly, will not produce harm to wire feeding motor and cable.But for minor diameter Pipe die for, existing wire feeder cannot be introduced into pipe die, even if can enter reluctantly, due to the length and diameter of pipe die Ratio it is larger, high-temperature flue gas caused by inside surfacing will necessarily be assembled in minor diameter pipe die, and time slightly length can burn Motor and its power line in wire feeder, the equipment breakdowns such as short circuit are produced when serious.

The content of the invention

Present invention solves the technical problem that it is：A kind of automatic welding wire feeder is provided, to meet minor diameter pipe die inwall heap Weldering requires.

The present invention adopts the technical scheme that：

The automatic welding wire feeder original wire feeder and between tip increase nipple joint, wire-feeding pipe, steel fastener, Bending device and copper reducing connecting tube；Original wire feeder is changed to horizontal wire feed by vertical wire feed, with nipple joint screw thread Connection wire feeder and wire-feeding pipe, the lower weld of the wire-feeding pipe have supporting construction, to prevent wire-feeding pipe flexural deformation, wire feed Pipe is welded with steel fastener, and steel fastener is connected with bending device fastener, and bending device is fixedly connected with copper reducing connecting tube, Copper reducing connecting tube is threadedly coupled with tip.The bending device include two blocks of arc plates and among two blocks of arc plates ten Individual axle mechanism；The wire feeder and supporting construction are fixed on operating desk.

Further, arc plate is 90-degree bent arc plate；In ten axle mechanisms, one is located at bending device welding wire entrance point The top of straight section, it is to be bent upwards to prevent welding wire simmering and bending, and relative three couple is six and is located at arc plate benging position, is welded for simmering and bending Silk, last three be located at bending device wire outlet end straight sections, interlaced setting, for welding wire be straightened, be easy to vertically to Lower wire feeding hose.

The technological progress that the present invention obtains is：Welding wire and solder flux are sent directly into inside minor diameter pipe die by the present apparatus, control System and wire feeding motor are stayed in outside pipe die, are avoided harm of the high-temperature flue gas to wire feeding motor and circuit, are realized minor diameter pipe The built-up welding of mould.The device convenient disassembly, the Quick-return of automatic welder can be achieved.

Brief description of the drawings

Fig. 1 is schematic structural view of the invention；

Fig. 2 is axle mechanism structural representation；

Wherein：1- wire reels, 2- welding wires, 3- wire feeders, 4- nipple joints, 5- nipples, 6- wire-feeding pipes, the connection of 7- steel Part, 8- arcs plate, 9- axle mechanisms, 10- female adapters, 11- coppers reducing connecting tube, 12- tips, 13- supporting constructions, 14- Supporting plate, 15- conductive plates, 16- operating desks, 9-1- steamboats, 9-2- fixed plates, 9-3- split pins, the small axles of 9-4-.

Embodiment

Accompanying drawing 1 is schematic structural view of the invention, and the wire reel 1 of original welding machine is motionless, by original welding wire feeding mechanism 3 by Wire feed vertically downward, horizontal wire feed is changed to, is fixed on fastener on operating desk 16.One end of nipple joint 4 and wire feeder 3 On threaded outlet connection, the other end is connected with the nipple 5 of wire-feeding pipe 6, and the other end and the steel fastener 7 of wire-feeding pipe 6 weld Connect, steel fastener 7 is connected with bending device using fastener.Bending device includes pacifying among two pieces 90 ° of arc plate 8 and arc plate 8 Ten axle mechanisms 9 of dress.Female adapter 10, the screw thread of female adapter 10 are fixedly connected with the lower end fastener of bending device Copper reducing connecting tube 11 is connected, copper reducing connecting tube 11 is threadedly coupled tip 12.

Accompanying drawing 2 is axle mechanism structural representation, and small axle 9-4 passes through from the hole of arc plate, installs steamboat 9-1, steamboat 9-1 The upper arc groove with guiding welding wire 2, can be rotated on small axle 9-4.Processed on small axle outside arc plate 8 it is fluted, in groove In fill in fixed plate 9-2, fixed plate 9-2 and the bolt connection of arc plate 8 or welding, so, by fixed plate 9-2 by two arc plates 8 Connected as one with small axle 9-4, and add the intensity of arc plate 8, also secure small axle 9-4.Then inserted with split pin 9-3 small In axle 9-4 pin-and-hole, prevent that fixed plate 9-2 from snapping or bolt looseness.

Because pipe die length is longer, generally it is longer than 6 meters, most long to can reach more than 8 meters, the present apparatus is from tip 12 to operation The Edge Distance of platform 16 need to reach more than 3 meters, and to ensure the rigidity of wire-feeding pipe 6, supporting construction 13 is provided with wire-feeding pipe bottom, The supporting construction uses steel plate or steel sectional material, is welded and fixed wire-feeding pipe 6 and supporting construction 13 with multiple supporting plates 14.

Ten axle mechanisms of bending device, an axle mechanism are located at the top of bending device welding wire entrance point straight section, Welding wire 2 is prevented to be bent upwards during simmering and bending.Three pairs respectively relative axle mechanism be located among arc plate 8, for welding wire 2 Simmering and bending so that welding wire 2 is changed into vertical wire feed from horizontal wire feed.Three wheel shaft knots are installed on the straight section of the port of export of bending device Structure, interlaced setting, welding wire 2 is set to be straightened vertically downward during wire feed.

In the both sides of the present apparatus, the fixed two piece steel pipes profile-followed with the present apparatus, in the side connection small rotated in face of pipe die Solder flux bucket is simultaneously sent into solder flux by welding bowl, and opposite side steel pipe connects horn mouth solder flux receiver, using the control system of former automatic welding, It is sent into and reclaims solder flux.

The present apparatus in use, welding wire 2 is pulled out from wire reel 1, by wire feeder 3, nipple joint 4, wire-feeding pipe 6, Bending device, exported from tip 12, connect conductive plate 15, pipe die connects ground wire, starts the control system of automatic welder, send Enter solder flux and welding wire, start built-up welding.In weld deposit process, pipe die rotation, the device is fed forward with automatic welder platform, completes pipe The automatic surfacing of mould inwall.Heap is soldered more than half of pipe die length, and the device is exited from pipe die, exchanges pipe die both ends, Carrying out the built-up welding of second half pipe die inwall.

After the completion of pipe die build-up welding, the disk of welding wire 2 is returned with wire reel 1, nipple joint 4 and tip 12 is pulled down, dismantles wire-feed motor Structure 3, readjust as wire feed vertically downward, tip 12 be connected with the threaded outlet of wire feeder 3, recover original solder flux from Dynamic conveying and recovery system, such automatic welder recover original state, can weld other structures part, not influence automatic welder Normal use.

Welding wire and solder flux are sent directly into inside minor diameter pipe die by the present apparatus, and control system and wire feeding motor stay in pipe die Outside, harm of the high-temperature flue gas to wire feeding motor and circuit is avoided, realizes the built-up welding of minor diameter pipe die.The device dismounting side Just, the Quick-return of automatic welder can be achieved.

Claims (3)

1. A kind of 1. minor diameter pipe die inner wall overlaying automatic welding wire feeder, it is characterised in that：In original wire feeder（3）With And tip（12）Between increase nipple joint（4）, wire-feeding pipe（6）, steel fastener（7）, bending device and copper reducing connecting tube （11）；The wire feeder（3）Horizontal wire feed；The nipple joint（4）It is threadedly coupled wire feeder（3）And wire-feeding pipe（6）；Institute State wire-feeding pipe（6）Lower weld have supporting construction（13）, wire-feeding pipe（6）With steel fastener（7）Welding；The steel fastener （7）It is connected with bending device by fastener；The bending device is fixedly connected with copper reducing connecting tube（11）；The copper becomes Footpath connecting tube（11）With tip（12）Threaded connection；The bending device includes two blocks of arc plates（8）With installed in two blocks of arc plates（8） Ten middle axle mechanisms（9）；The wire feeder（3）And supporting construction（13）It is fixed on operating desk（16）On.
2. 2. minor diameter pipe die inner wall overlaying automatic welding wire feeder according to claim 1, it is characterised in that：The arc Plate（8）90-degree bent；Described ten axle mechanisms（9）In one be located at bending device welding wire（2）The top of entrance point straight section, Relative three are pointed to arc plate（8）Crooked position, the interlaced setting of the other three are located at bending device welding wire（2）The port of export Straight section.
3. 3. minor diameter pipe die inner wall overlaying automatic welding wire feeder according to claim 2, it is characterised in that：The wheel Axis mechanism（9）Including steamboat（9-1）, fixed plate（9-2）, split pin（9-3）With small axle（9-4）；The small axle（9-4）From arc plate （8）Hole in pass through, install steamboat（9-1）；The steamboat（9-1）Upper carry is oriented to welding wire（2）Arc groove；In small axle（9- 4）Arc plate（8）Outside processing is fluted, fills in fixed plate in a groove（9-2）, fixed plate（9-2）With arc plate（8）Bolt connects Connect or weld；Split pin（9-3）Insert small axle（9-4）Pin-and-hole in.