CN2186610Y

CN2186610Y - Pipe welding machine

Info

Publication number: CN2186610Y
Application number: CN 94204943
Authority: CN
Inventors: 贺鸿恩
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-03-19
Filing date: 1994-03-19
Publication date: 1995-01-04
Anticipated expiration: 2004-03-19

Abstract

A pipe welding machine, in particular to a pipe welding machine which can finish the final polishing procedure of the outer surface of a finished pipe at one time. The existing pipe welding machine needs to cut off the pipe blank and then send the pipe blank to a special polishing machine for polishing, and has low efficiency and high cost. The utility model discloses mainly by frame, power device, shaping roll, welding set, weld the tumour and level device, finish roller, cutting device and constitute. The polishing device is additionally arranged in front of the cutting device, so that the auxiliary time for transferring the pipe to the polishing machine and taking the pipe from the polishing machine is saved, and the polishing efficiency is improved.

Description

Pipe welding machine

A kind of welded tube mill particularly can once be finished the welded tube mill of the final polishing process of production tube outer surface.

Existing welded tube mill, as domestic and international up-to-date production with the welded tube mill that generally uses, the groundwork process is: the metal tape blank is under main power plant drives, through a composing type roll, welder, overlap flattening device, one group of calibration devices, be cut off the pipe that device cuts into segment at last successively.General pipe for no specific (special) requirements, this pipe can meet the demands basically and directly be used, but the pipe of having relatively high expectations for some surface smoothnesses, decorate with pipe as stainless steel, just also need handle through carry out second polishing on special polishing machine, this will produce two problems: at first, need individual tubes is taken out from welded tube mill, put polishing machine then into, take off from polishing machine again after the polishing.Like this, increase extra back work amount, reduced production efficiency.Secondly, because the segment pipe all needs uniform polish along whole outer surface, so the clamping of pipe is just relatively more difficult during polishing, in order to overcome the difficulty in the clamping, existing polishing machine is generally quoted the principle and the structure of centerless grinding that need not clamping, the structural principle of this polishing machine has determined its polishing wheel and the relative velocity and the pressure of pipe to be restricted, thereby has determined its polishing efficiency not increase substantially.For example, according to reports, current most effective polishing machine, the polishing machine that Germany KELLER company produces, the highest polishing velocity is 8m/min, by this maximum speed, for the high-frequency welding tube mill by medium speed 60m/min discharging, just need join 8-12 platform polishing machine ability ordinary production, this just needs to be equipped with, and 12-20 people is upper and lower specially, transhipment tubing.Once more, the polishing machine of this welded tube mill makes the polishing machine floor space also bigger because of the upper and lower material of need, when throwing the long pipe of 6m, its polishing machine length overall must 18m could operate as normal.This shows that during tubing that existing welded tube mill production surface smoothness is had relatively high expectations, it is low to exist production efficiency, the deficiency that cost is higher.

The purpose of this utility model is: existing welded tube mill is improved, and the production efficiency when improving the demanding product of its production surface smoothness reduces production costs, and reduces floor space.

The purpose of this utility model is achieved in that welded tube mill mainly is to be made of frame, power set, a composing type roll, a cover welder, overlap flattening device, one group of processing roller, shearing device, has increased the outer surface burnishing device of at least one composition QC in addition before cut-out.During work, the metal made-up belt is introduced into a composing type roll, roll is under main power plant drives, the continuous clod wash of metal tape is become the tubulose base of band open seam, after the tubulose base overlaps welder through one, opening is by seam, become the pipe of tape welding knurl, pipe is behind the overlap flattening device, and overlap is removed, and it is level and smooth that weld seam becomes, after pipe carries out size and geometry finishing through processing roller again, advance into the outer surface burnishing device of at least one group of molded pipe in cut-out, manage polished after, be cut into the final finished polishing pipe of segment at last on demand through shearing device.Owing to be after on the machine pipe continuously being polished, to cut off again, after having saved former welded tube mill pipe cut-out single pipe is taken out the work step of putting into polishing machine and taking off from polishing machine from welded tube mill, so reduced workload, saved manpower, improved efficient.Owing to be pipe does not cut off before and just polish pipe under the state that the pipe of finishing also is connected as a single entity the front, need not establish the pipe clamping device in addition during polishing, the mode that need not be confined to centreless grinding so polishing can take several different methods to carry out is carried out, so just can fundamentally overcome the restriction that relative velocity and pressure can not improve between centreless grinding polishing wheel and pipe, improve thereby polishing efficiency can be had greatly.Because of having saved upper and lower material work step, so the more former polishing machine of length of welded tube mill polishing part has shortened 2/3rds.

From above analysis as seen, adopt the improvement project of the utility model to existing welded tube mill, the production efficiency in the time of can improving the pipe that existing welded tube mill production surface smoothness has relatively high expectations has reduced production cost, and has reduced floor space.

Below, the utility model is described in further detail in conjunction with the accompanying drawings and embodiments.

Accompanying drawing one is showed be welded tube mill planet circular system structure burnishing device and with the relative position sketch of welded tube mill processing roller and shearing device.Be mainly used to polishing garden pipe.Gold pipe racks blank, under main power plant drives, successively through a composing type roll, a cover welder, from last to processing roller after coming out, enter the burnishing device that planet circular system is formed, after the outer surface of pipe 2 is polished, enter shearing device 9 is cut into segment by length on demand production tube.

The planet circular system burnishing device is mainly by polishing wheel 5, and at least one planetary gear 6, centre wheel 7 and polishing power set 8 are formed, and centre wheel 7 and polishing power set 8 are installed on the frame 1.During work, polishing power set 8 drive planetary gear 6 and revolve round the sun along centre wheel 7, do simultaneously rotation again, also do revolution and rotation with the polishing wheel 5 that planetary gear 6 links with planetary gear 6, when pipe 2 process polishing machine centers, the outer surface of pipe 2 is just polished, and polishing wheel 5 is page or leaf sheet wheels that commercially available emery cloth is formed by stacking.

What accompanying drawing 2 was showed is the burnishing device of the another kind of structure of welded tube mill, and one group of polishing wheel 5 that pipe 2 external surface peripherals arrange and polishing power set 8 form along being welded into by one group.Polishing wheel 5 is along the continuous intensive layout of the external surface peripheral of pipe 2, and promptly each polishing wheel 5 constitutes complete pipe 2 outsides with the camber line sum total that contacts of pipe 2, shown in cross section A-A.For avoiding polishing wheel 5 to interfere with each other, polishing wheel 5 axially can be staggeredly arranged along pipe 2, when pipe 2 during through these group polishing wheels 5, the outer surface of pipe 2 is just all polished and is not had a dead band.

What accompanying drawing 3 was showed is the welded tube mill burnishing device that is made of abrasive band 5 and polishing power set 8.Article at least two, with surface, the outer garden envelope of pipe 2, abrasive band 5 is rotation at a high speed under the drive of polishing power set 8 symmetrically in abrasive band 5, the outer garden surface finish of pipe 2 that will be by abrasive band 5.

Accompanying drawing 4 is showed is the welded tube mill burnishing device of pipe when being square tube.This structure is simpler, 4 polishing wheels 5 is arranged in symmetrically on four faces of square tube base 2 to get final product.

Claims

1, a kind of welded tube mill, mainly constitute, it is characterized in that: the outer surface burnishing device that at least one group of molded pipe is set before cut-out by frame, main power plant, a composing type roll, a cover welder, overlap flattening device, one group of processing roller, shearing device.

2, welded tube mill according to claim 1 is characterized in that: the outer surface burnishing device is by at least one polishing wheel, a planet circular system and the polishing power set that centre wheel, at least one planetary gear are formed.

3, welded tube mill according to claim 1 is characterized in that: the outer surface burnishing device is that one group of edge has been welded into one group of polishing wheel arranging around the outer surface of tube blank and has polished power set.

4, welded tube mill according to claim 1 is characterized in that: the outer surface burnishing device is along at least two group abrasive bands of production tube surface arrangement and the polishing power set.