CN2107966U

CN2107966U - Multi-station soldering machine

Info

Publication number: CN2107966U
Application number: CN 91215626
Authority: CN
Inventors: 贺中义; 曹永上; 马力中; 张志正; 华学明; 施海峰; 徐再麒; 尤泳瑜
Original assignee: Shanghai University of Engineering Science
Current assignee: Shanghai University of Engineering Science
Priority date: 1991-06-29
Filing date: 1991-06-29
Publication date: 1992-06-24

Abstract

The utility model provides a multi-station soldering machine which comprises a preheating soldering torch, a heating soldering torch according to the quantity of workpieces which are soldered in requirements, a soldering wire feeding apparatus and a rotary disk on which a plurality of clamping apparatuses are arranged, wherein the fixed angle rotation and the positioning control of the rotary disk are realized through a dividing drive mechanism of a cylindrical cam. In addition, a small fire electromagnetic gas valve and a unidirectional restrictor are also additionally arranged on the heating gas supplying system of the soldering machine of the utility model in order to realize the big and small fire control in the condition of soldering and non-soldering, so the energy resource is saved and the working environment is improved. At the same time, the oxygen and the acetylene gas can also be used, and accordingly the use range of the flammable gas source is enlarged.

Description

Multi-station soldering machine

The utility model relates to solderer, particularly is used to weld the multistation solderer of freezer compressor housing copper pipe.

Domestic so far being seen a few cover multistation solderers mostly are orthoscopic greatly as the welding bicycle tripod, and workpiece setting enters welding post one by one and then welds on the straight line conveyer belt, and this form floor space is big, member is provided with complexity; In addition, the swinging multistation welding machine of introducing from states such as America and Europes in recent years, its project organization is general more numerous and more jumbled, and welding object is when changing, and the leeway of expansion use is less; Add thermal-flame at welded condition and non-welded condition indistinction, not only waste energy, working environment is also poor.

The purpose of this utility model provides a kind of novel multistation welding machine, and what it can realize workpiece decides angle rotation location; In addition, add thermal-flame and realize that under welding, non-welded condition large and small fire changes, energy savings is improved working environment; But also can use other fuel gas source such as acetylene except that propane, enlarged the fuel gas source scope.

The purpose of this utility model realizes in the following way:

The multistation solderer, comprise a frame, one flat bench face, one heating air supply system, one preheating welding torch, corresponding heating welding torch and the wire feeder that needs welding work pieces quantity, establish the rotary disk of some work piece holders on one forced air cooled tube and, it is characterized in that: described rotary disk is controlled it by a cylindrical cam indexing and driving mechanism and is decided angle rotation location, this mechanism comprises that one receives from power source power, the surface be provided with revolve (tiltedly) degree according to the station corner fixed spiral fluted cylindrical cam, and somely be arranged on rotary disk below and the roller pin that cooperates with the helicla flute of cam face along circumferentially-spaced.

In addition,, routine heating air supply system is improved, in pipeline, installed little thermoelectricity magnetism valve and one-way throttle device additional, thereby reached the saving energy, improve the effect of working environment for realizing adding the large and small fire conversion of thermal-flame at welded condition, non-welded condition.

For more being expressly understood the purpose of this utility model and advantage, below in conjunction with accompanying drawing most preferred embodiment of the present utility model is described in detail, wherein:

Fig. 1 is according to multistation solderer front view of the present utility model;

Fig. 2 is the side view of Fig. 1 solderer;

Fig. 3 is the cylindrical cam indexing and driving mechanism principle schematic of rotary disk;

Fig. 4 is a heating air supply system welding torch large and small fire switching gas circuit system schematic;

Fig. 5 is the wire feeder structural representation;

Fig. 6 is the structural representation of work piece holder;

Fig. 7 is the job order schematic diagram of the utility model ten station automatic brazing machines.

In conjunction with shown in Figure 7, multistation solderer of the present utility model aims at three copper pipe fittings on the welding freezer compressor shell and designs as Fig. 1,2.It constitutes the rotary disk 4 of establishing some (this example is 10) work piece holder 8 on a frame 1, the flat bench face 2,, a preheating welding torch, the three pairs of heating welding torches 5 and wire feeder 6, a forced air cooled tube 10, a heat screen 11, a workpiece detector 9 and corresponding electric control box 7 and air-channel system 12(sees aftermentioned for details).

Described rotary disk 4 realizes deciding the angular turn location by a cylindrical cam indexing and driving mechanism 3, as shown in Figure 3, to be motor 31 reach a cylindrical cam 35 with power by pulley apparatus 32, worm screw 33, gear 34 makes it rotation by a power source in this mechanism, these cam 35 surfaces are provided with helicla flute 351, this spin slot cooperates with roller pin 36 on being fixed on rotary disk, and along screwed flange 352 side slippages.That can realize rotary disk decides angle rotation positioning control, and in this example, the setting of revolving (tiltedly) degree of the spin slot 351 of cylindrical cam 35 makes it whenever to go around, and then rotary disk 4 rotations are 36 °, and 10 work piece holders of corresponding circumference five equilibrium on it then are shifted one.

For saving combustion gas, improve working environment simultaneously, the utility model makes it to realize that also by the heating air inlet system is improved the large and small fire of welded condition and non-welded condition switches.Welding torch large and small fire switching gas circuit system as shown in Figure 4, oxygen one combustion gas (can be propane, acetylene) is by separately pipeline, behind manually stop valve 14, pressure-reducing valve 15, Pressure gauge 16,17, pressure switch 18,19 and electromagnetic gas valve 20, each minute two-way.Lead up to big fire electromagnetic gas valve 21, another Lu Jingxiao thermoelectricity magnetism valve 22 and one-way throttle device 23, two-way merges into one the tunnel again then, enters heating welding torch 5(behind the tempered preventer 24 and comprises preheating welding torch 5 ', heating welding torch 5).This heating air supply system can make flame realize that large and small fire automaticallyes switch, under the control of PC Programmable Logic Controller, heating welding torch 5 in the welding position with big fire heat welding work pieces, non-welding position is in little fire and keeps state.Help improving working environment and energy savings like this.

For setting up in a wide range fuel gas source, make full use of the original acetylene gas of China factory, the utility model solderer also can use the acetylene combustion gas,, meet naked light and may lead to blast if leak around welding machine in view of acetylene, cause fire incident with finite concentration ratio quantity, so set up acetylene leakage alarm (not shown) in addition, in case its leakage rate surpasses permissible value, then alarm equipment alarm and cut-out gas, power supply automatically are until recovering normal.

Below more in conjunction with the accompanying drawings the concrete member of butt welding machine do some general introduction.Wire feeder 6 as shown in Figure 5, it is made up of cylinder 61, sliding stopper rod 62, hydraulic cylinder 63, adjusting screw(rod) 64, push pedal 65, back wire feed chuck 66, stroke lever 67, guide post 68, adapter sleeve 69, preceding wire feed chuck 70, spring 71 and wire guiding nipple 72 etc.The operation principle of wire feeder is as follows: cored solder wire passes from the center of back wire feed chuck, centre bore through cylinder piston rod, send by preceding wire feed chuck and wire guiding nipple again, cylinder advances during welding, this moment, welding wire was by back wire feed chuck clamping, together entered the weld zone of workpiece fast with wire guiding nipple, in case when the adjusting screw(rod) of hydraulic cylinder is withstood in push pedal this moment, because the damping of hydraulic cylinder, welding wire can be sent by wire guiding nipple with slower speed.The sendout of welding wire is by controlling by the length of adjustment stroke bar 67.Welding finishes, and cylinder obtains backhaul compressed air and returns rapidly from electromagnetic gas valve, at this moment before the wire feed chuck welding wire is clamped, welding wire is fixed on original sending on the length, can not return and the retraction wire guiding nipple with cylinder.As long as cylinder whenever advances once, welding wire just send once, until back wire feed chuck can't the clamping welding wire till, just must change silk again this moment.

Fig. 6 is clamp structure figure, and the anchor clamps that this machine is used for holding workpiece are a kind of self-tightening type three steel ball anchor clamps.It comprises guide pile 81, spacing cramp bar 82, upper base plate 83, clamp body 84, holddown spring 85, slip mandrel 86, steel ball 87, parts such as ball seat 88 and sliding ball 89.It clamps principle is after the housing workpiece is put anchor clamps, to determine the position by three guide piles, spacing cramp bar Decision Height.When anchor clamps were in free position, holddown spring relied on its elastic force that the slip mandrel is pressed down, and three steel balls that the cone position in mandrel stage casing promotes 120 ° of distributions move outward, with the housing swelling, kept correct invariant position in welding process.In case welding finishes, the sliding ball 89 of anchor clamps lower end enters cam tracks district, top (fan-shaped ramp type guide rail 13 as shown in Figure 2), moves on the slip mandrel, and three steel balls break away from the pushing of mandrel cone, lose the swelling effect to the workpiece housing, workpiece can freely take out.

Multistation soldering function of the present utility model makes original manual soldering production become automated production, guarantees under high production rate, reduces the consumption of solder, obtains regular weld seam and reliable welding quality.The utility model can make full use of the original oxy-acetylene source of the gas of China factory, and has security reliability, and needn't change other source of the gas, and expansion can utilize the scope of fuel gas source.

Utilize the utility model ten station automatic brazing machines, be specifically designed to three copper pipes on the welding rotary compressor housing, work tempo is to be welded into one, 1,000,000 of annual productions in 12 seconds.This machine working procedure is seen Fig. 7, and process is as follows, puts compressor housing on I station anchor clamps, and the II station is inserted three copper pipes on housing corresponding aperture position, and brazing flux is coated in the welding position.The III station is an idle station.When workpiece turned to the IV station by the III station, detection head 9 detected on the anchor clamps and has or not workpiece.If detected, then the IV station is to the workpiece preheating, and in V-VII station order three pipes successively carried out soldering, and to the cooling of workpiece blowing compressed air, IX station anchor clamps loosen the VIII station by forced air cooled tube, and workpiece can freely take off, and the X station is again an idle station.If detection head detects less than workpiece is arranged on the instrument, then the sequentially-operating of IV-VIII is not all carried out, until detection head detects again till the workpiece appearance.

Above-mentioned solderer is if change the anchor clamps that are applicable to other workpiece pattern, and the scope of application of automatic brazing machine then of the present invention will be expanded, and for example can weld the electric switch part, instrument or electrical equipment etc.

Claims

1, the multistation solderer, comprise a frame, one flat bench face, one heating air supply system, one preheating welding torch, corresponding heating welding torch and the wire feeder that needs welding work pieces quantity, establish the rotary disk of work piece holder on one forced air cooled tube and, it is characterized in that: described rotary disk is controlled it by a cylindrical cam indexing and driving mechanism and is decided angle rotation location, this mechanism comprises that one receives from power source power, the surface be provided with revolve (tiltedly) degree according to the station corner fixed spiral fluted cylindrical cam, and be arranged on rotary disk below and the roller pin that cooperates with the helicla flute of cam face along circumferentially-spaced.

2, solderer as claimed in claim 1 is characterized in that described cylindrical cam indexing and driving mechanism comprises that also a worm and wormwheel device, a pulley apparatus are the power of motor to receive from power source.

3, solderer as claimed in claim 1, oxygen, the fuel conduit that it is characterized in that described heating air supply system all have additional little thermoelectricity magnetism valve and the one-way throttle device is controlled to realize welded condition, non-welded condition big and small fire down.

4, solderer as claimed in claim 1 or 2 is characterized in that described wire feeder comprises a cylinder, sliding stopper rod, hydraulic cylinder, adjusting screw(rod), push pedal, back wire feed chuck, stroke lever, guide post, adapter sleeve, preceding wire feed chuck, spring, wire guiding nipple.

5, solderer as claimed in claim 4, the anchor clamps that it is characterized in that holding workpiece on the described rotary disk can be self-tightening type three steel ball anchor clamps, and it includes the sliding ball on guide pile, spacing cramp bar, upper base plate, clamp body, holddown spring, slip mandrel, steel ball, the ball seat.

6, as claim 1 or 5 described solderers, it is characterized in that it being that described work top is provided with the sliding ball of anchor clamps and cooperates, and make anchor clamps when rotating to out material level with panoramic table, unclasp the fan-shaped ramp type guide rail of workpiece.