The formal temp auto-controlled of automatic auxiliary heat time heating time and self adaptation wire feed gas brazing equipment
Technical field
The present invention relates to a kind of brazing equipment, be used for automatic, the continuous gas brazing of realization to compressor housing and blast pipe on rotating disk.
Background technology
Along with the development of household electric appliances, make the output in refrigerator and air-conditioning market increase sharply.The demand of the heart component-compressor of refrigeration system also increases thereupon, impels each compressor manufacturer constantly to enlarge scale, increases manufacturing facilities.Traditional manual welding temperature can't Measurement accuracy and control, be difficult to guarantee welding quality, and production efficiency is low.At present, the automation gas brazing equipment that is applied to the compressor housing soldering replaces manual soldering has become a kind of trend.
The automatic flame welding machine mainly can be divided into two kinds on the method for operation: multiple-station turntable type and linear reciprocating.Incompatible from applied field, multiple-station turntable type automatic flame welding machine is mainly used in welding single, the small size solder joint, and advantage is that welding precision is high, brazing process variables is easy to control, is the ideal equipment that is applied to the compressor housing welding.But existing rotating disc type automatic flame welding machine also exists problems.
Oxide skin problem after the compressor welding.In present compressor housing brazing process, be difficult to realize the accurate control to brazing temperature, can produce in various degree oxide skin in shell inner surface, become the main source of impurity in compression case.In compressor, the existence of any impurity all can be shortened its service life, and therefore reducing the interior impurity of compressor is compressor producer problem in the urgent need to address.
The brazing material of compressor housing and red copper blast pipe is mainly silver content over the serial solder of 40% AgCuZn at present, and cost is higher.There are some researches show, brass welding wire can satisfy the requirement of the aspects such as red copper-stainless steel braze welding strength of joint, toughness fully.But higher fusing point has restricted the application of brass welding wire on compressor housing.Existing technique tends to cause the copper pipe burning because temperature control is not good, and workpiece is scrapped.Therefore, researching and developing a kind of rotating disc type Automaticflame Brazing equipment that is applicable to brass welding wire is key point, and the present invention has solved an above-mentioned difficult problem exactly.
Summary of the invention
The purpose of this invention is to provide a kind of rotating disc type automation gas brazing equipment that is applicable to compressor housing and blast pipe welding, can regulate by automatic calibration heat time heating time, accurately controls the welding of brass welding wire on compressor housing with this and use.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
The formal temp auto-controlled of automatic auxiliary heat time heating time and self adaptation wire feed gas brazing equipment comprise rotating disk part, flame welding portion, control section; Rotating disk partly comprises can make the rotating disk that repeats the intermittent movement turning round, stop, be positioned at a plurality of stations on rotating disk, and automatic control automatic auxiliary positive system heat time heating time of heat time heating time is installed on the heating in a plurality of stations and welding post.
Described a plurality of station comprises successively that according to circumferential order loading and unloading part station, workpiece detect station, preheating station, heating and welding post, water-cooled and air-cooled station, air-cooled station.
On described a plurality of station, each station is furnished with the fixture that two covers are installed workpiece to be welded, has realized that " dual-workpiece " weld simultaneously.
Described flame welding portion comprises preheating welding torch, the preheating mechanism that is arranged on preheating station, is arranged on heating and the heating welding torch of welding post, heating arrangements, heat time heating time automatic auxiliary positive system, wire feed rifle.
Described heat time heating time the automatic auxiliary positive system comprise be connected with fixture for detection of welded piece temperature infrared temperature-test sensor, connect infrared temperature-test sensor and carry out the PLC unit that data are processed, the temperature of workpiece and fixture before welding by mensuration, compare with the empirical temperature database that accumulates in production process, calculate and arrive best welding temperature required heat time heating time, realize the control to welding temperature.
On described loading and unloading part station, safe grating is installed.
Described workpiece detects photoelectric induction device is installed on station.
On described heating and welding post, its heating welding torch is arranged on oscillating cylinder and moves back and forth.
Described control section comprises control cabinet, touch screen control panel, operating case, operating desk.
After adopting such scheme, the present invention has many beneficial effects:
The formal temp auto-controlled of automatic auxiliary heat time heating time of the present invention and self adaptation wire feed gas brazing equipment production efficiency in the gas brazing process are high, and each station can carry out the operation of two groups of workpiece simultaneously; Welding temperature is controlled accurately, has realized that in the welding of compressor housing and blast pipe, brazing solder substitutes high silver solder, has effectively reduced production cost; Welded compressor housing inner surface non-scale produces, and has extended the service life of compressor.
Description of drawings
Fig. 1 is the structure schematic top plan view of preferred embodiment of the present invention.
The specific embodiment
By reference to the accompanying drawings, preferred embodiment of the present invention is described in further details.
As shown in Figure 1, the present invention mainly comprises rotating disk part, flame welding portion and control section.
Wherein, rotating disk comprises that partly rotating disk 2, turntable indexing mechanism 6, loading and unloading part station 3, workpiece detect station 4, preheating station 7, heating and welding post 11, water-cooled and air-cooled station 17, air-cooled station 18.The centre of rotating disk 2 arranges turntable indexing mechanism 6, can so that rotating disk rotates according to angle, repeat the intermittent movement of doing revolution, stopping by turntable indexing mechanism 6.Six stations are distributed on rotating disk 2 according to the circumferential order equal angles, and each station all is furnished with two sleeve clamps 23, can realize that " dual-workpiece " weld simultaneously.
At loading and unloading part station 3 windows, safe grating is installed, avoids the workman that security incident occurs when the loading and unloading part.Workpiece detects station 4 photoelectric induction device that two cover detection workpiece have or not is installed.Water-cooled and air-cooled station 17 are furnished with a cover water cooling plant 15 and a cover air cooling equipment 16, can select the corresponding type of cooling according to the actual production demand.Air-cooled station 18 is furnished with a cover air cooling equipment 19, is used for drying up workpiece and fixture.
The flame welding portion comprises preheating mechanism 8, preheating welding torch 5, heating arrangements 14, heating welding torch 13, heat time heating time automatic auxiliary positive system 9, wire feed rifle 12.Pre-heating solder iron is furnished with two groups of plating Chrome preheating welding torches 5, and moving up and down of welding torch realized by cylinder drive linear bearing.Heating welding gun 14 is provided with oscillating cylinder, and heating welding torch 13 has the swing function.Amplitude and hunting frequency are all adjustable, have guaranteed the uniformity of workpiece heating.
Be provided with automatic auxiliary positive system heat time heating time on heating and welding post 11, heat time heating time, automatic auxiliary positive system 9 comprised infrared temperature-test sensor 10 and PLC unit 9.Temperature by welded piece and fixture after infrared temperature-test sensor 10 mensuration preheatings, the temperature of this type of product specification workpiece of storage in this temperature and PLC unit 9-time fair curve is compared, calculate and arrive the best welding temperature of this product required heat time heating time, automatically to revising heat time heating time.Wire feed rifle 12 adopts the wire feeding mode of self adaptation wire feed, and wire feed rifle 12 is at control section in setting time wire feed, and when workpiece temperature did not reach the welding wire fusing point, welding wire did not melt, and stopped wire feed.When temperature rises to the welding wire fusing point, continue wire feed.
Control section comprises control cabinet 20, touch screen control panel 1, operating case 21, operating desk 22.The setting of product brazing process parameter, programme-control all adopt PLC to control.Realize selecting fast the Product Process parameter by the product of setting in advance, preserve plurality of specifications at touch screen control panel 1, comprise gas flow, each station time period, silk feeding quantity, the type of cooling etc.
The occupation mode of this equipment: loading and unloading part station 3 loads workpiece, selects this product category, start-up operation box 21 at touch screen control panel 1.Rotating disk 2 entrys into service, workpiece detect station 4 detection workpiece and have or not, if there is no workpiece on fixture, corresponding follow-up station will be failure to actuate; If workpiece is housed on fixture, preheating station 7 preheating welding torches 5 descend, and station is carried out preheating, and preheat temperature is generally 300 ℃~500 ℃.Workpiece running is to heating and welding post 11, and infrared temperature-test sensor 10 is measured the temperature of welded pieces and fixture, measures temperature feedback to PLC unit 9, and to revising heat time heating time, after reaching heat time heating time, two wire feed rifles 12 are wire feeds simultaneously, complete welding.Workpiece turns round to water-cooled and air-cooled station 17, can select water-cooled or air-cooled according to the difference of welded piece.The workpiece running dries up workpiece to air-cooled station 18.The workman puts and unloads the workpiece that needs welding continuously at operating desk 22, thereby has realized automatic, the continuous flame soldering of compressor housing and blast pipe.
Above-described embodiment only is used for explaining inventive concept of the present invention, but not to the restriction of rights protection of the present invention, allly utilizes this design to carry out the change of unsubstantiality to the present invention, all should fall into protection scope of the present invention.