CN2173493Y

CN2173493Y - Automatic wave crest welding machine

Info

Publication number: CN2173493Y
Application number: CN 92245978
Authority: CN
Inventors: 张亚东
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-31
Filing date: 1992-12-31
Publication date: 1994-08-03
Anticipated expiration: 2002-12-31

Abstract

The utility model relates to an automatic wave crest welding machine, which is an electromechanical one-piece complete machine composed of a wave crest generator, a flux foam generator, a preheater, a transfer mechanism, a control system for electrical appliances, and a casing. The utility model can be automatically timed and started; a following clamp can be automatically conveyed to clamp a printed circuit board onto the flux foam generator to paint flux, onto the preheater to preheat the printed circuit board, and onto the wave crest generator to weld components of the printed circuit board. The automatic wave crest welding machine is also provided with an over temperature protecting device which prevents workpieces from being burned, and a grid-type current regulator which keeps the stability of wave crest welding. The utility model, which has the advantages of compact and reasonable design structure, beautiful appearance, small volume, light weight and good welding quality, is suitable for being widely used in the industry of electronic instruments.

Description

Automatic wave crest welding machine

The utility model belongs to the automatic wave soldering machine of printed wire panel element welding.

At present; automatic welding to installation print circuit board surface elements such as electronics industry, instrument and meter, computer, radio-cassette player, game machine, electronic toy and communication apparatus is to use crest welder in a large number; but the combining structure imperfection that existing crest welder has; what have does not have overtemperature prote and an Auto Power On; the volume that has is heavy greatly again; and the corrosion etc. that gets rusty easily of some parts, such as the Italian welding machine of introducing and other big-and-middle-sized welding machines above-mentioned deficiency is just arranged.And for example " wave welding device and method " (891002276.7) of Chinese patent, " soldering apparatus " (88100905); and " being enclosed in the protective atmosphere flow brazing of solder slots " (92101677.8) etc., still lack practical reasonable combination structure and relevant automatic control.The utility model is based on existing solderer and in conjunction with the reality of China, to its structural group cooperation comprehensive improvement, just can collect mechanical, electrical for one, make the global design compact conformation of crest welder reasonable, automatic welding quality control is reliable, and function is also more perfect.

The purpose of the utility model design is the deficiency that is to overcome prior art; peak generator reasonable in design, preheater, scaling powder foam maker, transmission mechanism, electrical apparatus control system and shell are formed the dynamo-electric automatic wave soldering machine that integrates of novel structure, perfect performance; make it have automatic protection and timing start-up function, and the advantage that compact integral structure is reasonable, easy to operate, function is complete and volume is little, in light weight, cost is low.

Also in conjunction with the accompanying drawings the novel combination cellular construction and the complete machine structure of the utility model design are described in detail as follows with embodiment below:

Fig. 1 is that the structure of automatic wave soldering machine is always schemed;

Fig. 2 is the structure chart of peak generator;

Fig. 3 is the A-A cutaway view of Fig. 2;

Fig. 4 is the crest spout structure figure (4a is that facade, 4C are that plane and 4b are that B-B analyses and observe) of peak generator;

Fig. 5 is the structure chart (5a is that facade is analysed and observe, 5b is the C-C cutaway view) of scaling powder foam maker;

Fig. 6 is the outward appearance total figure of combination (6a is that facade, 6c are that plane and 6b are the sides) of automatic wave soldering machine.

This automatic wave soldering machine, as shown in Figure 1, it is made up of peak generator (18-22), scaling powder foam maker (6,11-17), preheater (23-25,20), transmission mechanism (2-5,27,29-32), electrical apparatus control system and shell (7-10,26) etc.The motor 30 that it is characterized in that transmission mechanism drives pallet 2 along guide rail 3 round moving by drive sprocket 29 and driving-chain 31, electric appliance control box 1 control pallet 2 transmission printed substrate branches are clipped to the scaling powder foam maker and are coated with solder flux, to preheater 23 preheatings, turn back to the peak generator welding, the element spraying combination of the printed substrate that the effervescent nozzle 14 and the pallet 2 of scaling powder foam maker delivered to, preheater 23 makes up with the printed substrate indirect preheating that pallet 2 is delivered to, the element wave soldering of the printed substrate that the crest spout of peak generator 21 and pallet 2 are delivered to makes up and forms the combining structure that automatic wave soldering connects, and by peak generator, the scaling powder foam maker, preheater, transmission mechanism and electrical apparatus control system and shell are connected and form the overall structure of automatic wave soldering machine.Wherein, electric appliance control box 1 is placed in rear on the frame.Guide rail 3 right-hand members are fixed on by angle steel by adjustment screw 4 on the right wallboard 7 of frame and with spring 5 tensions, left end is fixed on the left wallboard 26 of frame by angle steel, and guide pass and pallet are slidingly connected.Pallet 2 is fit to clamping print circuit board surface element and is coated with solder flux, preheating and wave soldering, and the anchor clamps left end is fixedlyed connected with driving-chain 31 respectively up and down, and drives round moving by driving-chain 31, regulating wheel 32 and rotating sprocket 29 by motor 30.The scaling powder foam maker of being made up of foaming groove 11, plate 12, foam maker 13, effervescent nozzle 14 and foam box 15 is fixed on the frame bottom support angle steel 8 by connecting angle steel 17 with bearing support 16, and the heating-up temperature of foam maker and start-stop are to be controlled by the foaming control cabinet 6 that is fixed on the right wallboard 7 of frame.The peak generator of being made up of incubator 20 and crest generation trough 21 is placed on the frame bottom support angle steel 8, and, outside the right-hand member of establishing coil holder 22, settle thermal insulation board 19 to be fixed on the frame bottom support angle steel 8 simultaneously by angle steel 18 with establishing coil holder 22 connection supply lines and pilots.Preheater 23 left ends are fixed on the left wallboard 26 of frame by supporting bent plate 28, and right-hand member is supported on the crest incubator, and the solidus folder 24 that is fixed on the frame bottom support angle steel 8 with channel-section steel 25 connects supply lines.The shell of crest welder is made up of bottom support angle steel 8, right wallboard 7, left wallboard 26 and front and back wallboard and housing, and with the two supports of frame bottom support angle steel 8 on leg adjustable column 9 and foot pad 10.Motor exhaust 33 is placed in the top of peak generator and is fixed on the frame.Motor 30 is fixed on the left wallboard 26 by fixed head 27.

Below to peak generator, the scaling powder foam maker, preheater, the composition structure of electrical apparatus control system and shell is described in detail as follows: described peak generator such as Fig. 2,3, shown in 4, it is by molten tin bath 64, crest spout (44,45), blender (34-43,54-55,61,69), leveling assembly (46-47), grid formula flow straightener 51, lead tin bowl 59 and incubator compositions such as (48-49), it is characterized in that crest spout (44,45) lower end is connected with grid formula flow straightener 51, and by front and back connector (50,52) supporting is fixed on, lower plywood (60,53) between and form the crest rock-steady structure of peak generator.Wherein, molten tin bath 64 two ends top boards are fixed on incubator (48-49) top, the left and right sides by levelling bolt 46 and leveling back nut 47 and make molten tin bath put into incubator, and the tin-tube 56 of putting of molten tin bath lower-left end is connected with plug 58 by radiator 57.Wherein, the crest spout is made up of spout end plate 44 and spout bent plate 45, and the spout lower end is connected with grid formula flow straightener 51 and the two ends by top plate 60 are screwed on the connecting flange of molten tin bath about 64 ends.Leading tin bowl 59 upper ends is bearing on the top plate 60.The internal layer of incubator 48 is close to asbestos board 49, and interior case is placed molten tin bath 64.Blender is made up of impeller 55, shaft 69, belt pulley 34, belt 35, connection bent plate 36, bearing cap 37, bearing 38, bearing holder (housing, cover) 39, adjustable coupling sleeve 40, nut 41, joint bolt 42, column 43, splicing sleeve 54 and flywheel 61, and is supported on the left end orifice plate of upper and lower laminate (60,53) with column 43 lower ends and splicing sleeve 54.Fig. 3 is the A-A cutaway view of Fig. 2, and wherein impeller 55 is fixed on the lower end of shaft 69 and is supported on the column 43 by bearing 38 and bearing cap 37, is rotated by motor 63 impeller 55 by belt pulley 34, belt 35 and small pulley 62.Motor 63 is by connecting the upper end that bent plate 36 is supported in column 43.Flywheel 61 is solidly connected with shaft 69 intermediate sleeve.Molten tin bath 64 is that unsettled being placed in the incubator 48 and with asbestos board 49 is incubated, and the molten tin bath periphery places heater 65 and bar 67 connects and cover plate 66 covers with connecting, and internal upper part adpting flange 68 is fixedlyed connected with top plate 60.Column 43 lower ends are screwed on lower plywood by splicing sleeve 54.Leading limit, tin bowl 59 upper end is placed on the top plate 60.Crest mouth end plate 44 is placed on the top plate 60.Fig. 4 is the structure chart of crest spout, and the crest spout is fixedlyed connected with forward and backward spout bent plate 45 usefulness screws 71 with forward and backward cover plate 70 respectively by left and right spout end plate 44 two ends and formed, and end flanges is fit to be connected with grid formula flow straightener upper end under it.

Described scaling powder foam maker as shown in Figure 5, it is made up of foaming groove 11, effervescent nozzle 14, foam box 15, foam maker 13 etc.The groove 11 that it is characterized in that foaming is placed in the foam box 15 and passes through guide pin bushing 78, guide pillar 77 and seal washer 76 usefulness nuts 75 are fixed on the base plate of foam box 15, regulate the setting height(from bottom) of foaming groove simultaneously with adjustment screw 79, effervescent nozzle 14 is placed in the centre of foaming groove 11, closing up in its upper end is effervescent nozzle, the lower end is connected with the foaming trough floor, a left side, right plate 12 is inserted between nozzle and the foaming groove, foam maker 13 is placed in the bottom of effervescent nozzle 14 internal partitions, its left end is connected with air inlet pipe 80, two ends are connected with the air inlet plug with plug respectively, foam box 15 bottom outlets with put agent mouth 74 and be connected, its two ends, end are connected with connection angle steel 81 with nut 75 by guide pillar 77 usefulness packing rings 76.The 72nd, foaming groove end plate, the 73rd, foam maker guide vane end stop.

Described electrical apparatus control system; as shown in Figure 1; it is made up of electric appliance control box 1 and scaling powder foaming control cabinet 6; wherein design and installation have power cell; temperature control unit; the transmitting control unit; the foaming control unit; warm-up time control unit; the crest control unit; logical block; automatic control unit such as timer and digital display meter is characterized in that having a temperature control unit by electrical apparatus control system to prevent the automatic protection circuit that overtemperature burns out with automatic protector control printed wiring element; with the automatic control circuit of logical block with timer control automatic wave soldering timing start-up.

Fig. 6 is the combining structure outside drawing of automatic wave soldering machine, wherein, the 83rd, the air draft hood, the 26th, first member plate, the 84th, movable outer cover, the 9th, support foot adjustable column, the 10th, supporting foot pad, the 57th, radiator, the 86th, instrument control panel, the 3rd, guide rail, the 15th, foam maker, the 19th, thermal insulation board, the 87th, large cover, the 88th, preceding shrouding, the 82nd, middle shrouding and 85 is back shroudings, the 89th, hinge, the 58th, plug.The basic specification of the automatic wave soldering press proof machine that manufactures and designs by present embodiment is as follows: overall dimension: 900 * 520 * 310mm; Complete machine is heavy: 50kg; Power: 3.3kw; Rong Xiliang: 38kg; Molten tin time: 90-100m; Transmission chain speed: 0.6-3m/min(unit level); Temperature controlling range: 0-300 ℃; Crest height: 0-15mm; Can weld the printed panel size: 200 * 300mm(maximum).

In a word; the automatic wave soldering machine that designs and produces according to present embodiment; just peak generator, preheater, scaling powder foam maker, transmission mechanism and electrical apparatus control system and shell may be formed combining structure that automatic wave soldering connects and dynamo-electric in the unitary whole structure; realize transmitting automatically printed wiring element branch be clipped to the scaling powder foam maker be coated with solder flux, to the preheater preheating, turn back to peak generator and weld, and automatic protection and the timing start-up function that prevents that printed wiring element overtemperature from burning out arranged.The utility model also has Combination Design novelty, compact conformation reasonable, the process technology performance advanced person, and function is complete, and automatic wave soldering connects the reliable feature of control, at aspects such as meter electronics industry widely used value is arranged.

Claims

1, a kind of automatic wave soldering machine, be by peak generator, the scaling powder foam maker, preheater, transmission mechanism, composition such as electrical apparatus control system and shell, it is characterized in that having a motor 30 by transmission mechanism to drive pallet 2 by drive sprocket 29 and driving-chain 31 comes and goes mobile along guide rail 3, electric appliance control box 1 control pallet transmission printed substrate branch is clipped to the scaling powder foam maker and is coated with solder flux, to preheater 23 preheatings, turn back to the peak generator welding, the element spraying combination of the printed substrate that the effervescent nozzle 14 and the pallet 2 of scaling powder foam maker delivered to, the element wave soldering of the printed substrate that the printed substrate indirect preheating combination that preheater 23 and pallet 2 are delivered to, the crest spout of peak generator 21 and pallet 2 are delivered to combines and forms the combining structure that automatic wave soldering connects; There is one to prevent automatic protection circuit that overtemperature burns out and logical block automatic control circuit with automatic protector control printed wiring element, and is connected and forms the overall structure that automatic wave soldering connects by peak generator, scaling powder foam maker, preheater, transmission mechanism and electrical apparatus control system and shell with timer control automatic wave soldering timing start-up by the temperature control unit of electrical apparatus control system.

2, automatic wave soldering machine as claimed in claim 1, crest spout (44, the 45) lower end that it is characterized in that peak generator is connected with grid formula flow straightener 51, and is fixed between the upper and lower laminate (60,53) and is formed the crest rock-steady structure of peak generator by front and back connector (50,52) supporting.

3, automatic wave soldering machine as claimed in claim 1, it is characterized in that the scaling powder foam maker is to be placed in the foam box 15 also by guide pin bushing 78 by foaming groove 11, guide pillar 77 and seal washer 76 usefulness nuts 75 are fixed on the base plate of foam box 15, regulate the setting height(from bottom) of foaming groove simultaneously with adjustment screw 79, effervescent nozzle 14 is placed in the centre of foaming groove 11, closing up in its upper end is effervescent nozzle, the lower end is connected with the foaming trough floor, a left side, right plate 12 is inserted between nozzle and the foaming groove, foam maker 13 is placed in the dividing plate bottom in the effervescent nozzle 14, its left end is connected with air inlet pipe 80, foam box 15 bottom outlets with put agent mouth 74 and be connected, its two ends, end are connected with connection angle steel 81 with nut 75 by guide pillar 77 usefulness packing rings 76.