CN102161152A - Processing method of heating radiator - Google Patents

Abstract

The invention discloses a processing method of a heating radiator. The processing method comprises the following steps of: (1) processing a plurality of radiating pipe installation holes respectively on two header tubes, and processing thread connector installation holes respectively at the two ends of the two header tubes; (2) processing splicing sections respectively at the two ends of the plurality of radiating pipes, and forming a positioning platform respectively at the transition positions of the splicing sections and radiating pipe bodies; (3) inserting the two ends of the plurality of radiating pipes respectively and sequentially into the radiating pipe installation holes of the two header tubes and then connecting the radiating pipes and the header tubes into a whole in a riveting manner; (4) after the riveting is finished, brazing the header tubes and the radiating pipes into a whole in a weld area formed among the outer hole walls of the radiating pipe installation holes and the radiating pipes, and welding; and (5) after brazing is finished, welding thread connectors in the thread connector installation holes. The processing method has the advantages of small deformation after welding, less processing steps, low energy consumption and low production cost, less environmental pollution, and good production environment; and a radiator prepared by the processing method has long service life and good radiating effect is good.

Description

A kind of processing method of heating radiator

Technical field

The present invention relates to a kind of processing method of heating radiator.

Background technology

Existing heating radiator is by the method that arc welding is welded radiating tube and header tube weldering to be connected as a single entity, promptly on header tube, process earlier the radiating tube installing hole, then radiating tube is inserted the radiating tube installing hole, again with radiating tube and header tube scorification together with arc welding.The effect of welding has two: one, radiating tube and header tube linked together, and the 2nd, will seal between radiating tube and the header tube.Owing to will guarantee the bonding strength and the sealing effectiveness of radiating tube and header tube, so solder layer is thicker, causes welding capacity big, causes polluting the shortcoming big, that energy consumption is high, production environment is poor, labour intensity is big thus.Moreover, temperature during arc welding is very high, welding quantitative change conference causes the deflection of radiating tube and header tube bigger, need shaping after the welding, be subjected to the restriction of operating space, the removing difficulty of weld welding slag is bigger, and shaping and scarfing cinder two procedures are occupied bigger ratio again in the radiator production cost, causes production cost to strengthen.In addition, owing to do not have locating surface on the radiating tube, radiating tube and header tube can not relative positionings, so cause two header tube not parallel easily, are difficult to guarantee the centre-to-centre spacing of radiator entery and delivery port.Also have, existing processing method, its radiating tube inserts in the header tube more, in use, the junction of the two is gathered objectionable impurities easily and is accelerated the corrosion of radiator, has a strong impact on the service life of radiator, and radiating tube inserts the more header tube inner chamber that makes and narrows down, increased the water resistance of radiator, radiating effect is poor.

Summary of the invention

The objective of the invention is provides a kind of processing method of heating radiator at above-mentioned defective, and the welding deformation of this method is little, postwelding does not need to do shaping and scarfing cinder is handled, and can guarantee the centre-to-centre spacing of radiator entery and delivery port, the radiator long service life that this method processes, good heat dissipation effect.

In order to realize the foregoing invention purpose, the processing method of heating radiator of the present invention may further comprise the steps:

(1) respectively process a plurality of radiating tube installing holes that are provided with along its longitudinal separation on two header tube, the radiating tube installing hole is big not isometrical hole, inner little outer end, respectively processes the nipple installing hole two header tube one or both ends separately;

(2) respectively process the inserting section of diameter at the two ends of many radiating tubes, make the transition position of inserting section and radiating tube body form positioning table less than the radiating tube body;

(3) many radiating tubes and two header tube are pegged graft, make two inserting section of each radiating tube stretch into the inner chamber of two header tube by the radiating tube installing hole respectively and its positioning table is leaned on the hole wall of radiating tube installing hole, then enlarging is carried out in the end of the inserting section of each radiating tube, make the end formation flange that turns up, flange cooperates with positioning table radiating tube is riveted on the header tube;

(4) after riveted joint is finished, carry out soldering in the weld zone that between the outer end of radiating tube installing hole hole wall and radiating tube outer surface, forms, header tube and radiating tube weldering are connected as a single entity;

(5) after soldering is finished, nipple is welded in the nipple installing hole.

Described radiating tube installing hole is a taper hole.

Described radiating tube installing hole is a stepped hole.

The macropore of described stepped hole is a taper hole.

Respectively process one section flat segments that inner surface is parallel with outer surface on the sidewall of described two header tube, the radiating tube installing hole is arranged on this flat segments.

Header tube of the present invention and radiating tube adopt riveted way to link together, the bonding strength of header tube and radiating tube just can guarantee by riveted joint, the purpose of carrying out soldering in the weld zone mainly is the sealing that realizes between header tube and the radiating tube, not in order to realize purpose of connecting, after the soldering bonding strength of header tube and radiating tube to be further strengthened certainly.Because the welding temperature of soldering is low, tissue and mechanical performance change little, be out of shape little, that is to say, the very little not even distortion of radiating tube and the header tube deflection after welding is finished, the soldering weld is smooth smooth, therefore, by the heating radiator of the method for the invention processing, need not again can effectively to reduce production costs through follow-up shaping and scarfing cinder operation.Adopt soldering can reduce environmental pollution, cut down the consumption of energy, improve production environment.Because the inserting section diameter is less than the radiating tube body, after the transition position of inserting section and radiating tube body forms positioning table inserting section insertion radiating tube installing hole, positioning table leans on hole wall, riveted joint is achieved, and can accurately locate two header tube, the depth of parallelism of two header tube after can guaranteeing to rivet and weld, the depth of parallelism of two header tube are guaranteed, have also just guaranteed the centre-to-centre spacing of radiator entery and delivery port.Flange not only makes riveted joint be achieved, and the insertion amount of radiating tube can be effectively shortened in the formation of flange.It is effectively to reduce water resistance that the insertion amount reduces one, improves radiating effect; The 2nd, make objectionable impurities be difficult for gathering in the junction of radiating tube and header tube, reduce the corrosion of radiator, prolonged the service life of radiator.

In sum, the invention has the advantages that: post welding distortion is little and can guarantee the centre-to-centre spacing of radiator entery and delivery port; Manufacturing procedure is few, and production cost is low; Environmental pollution is little, production environment good, energy consumption is low; The radiator long service life that this method processes, good heat dissipation effect.

Description of drawings

Fig. 1 is the structural representation that adopts the heating radiator that the method for the invention processes;

Fig. 2 is the cutaway view along A-A line among Fig. 1;

Fig. 3 is the structural representation of header tube;

Fig. 4 is the cutaway view along B-B line among Fig. 3;

Fig. 5 is the structural representation of radiating tube;

Fig. 6 is the structural representation after header tube and the radiating tube riveted joint;

Fig. 7 is the structural representation of the header tube of another kind of structure;

Fig. 8 is the header tube of another kind of structure and the structural representation after the radiating tube grafting;

Fig. 9 is the structural representation of riveting machine;

Figure 10 is the right view of Fig. 9;

Figure 11 is the structural representation of rivet rod.

The specific embodiment

Below in conjunction with accompanying drawing the method for the invention is elaborated.

Heating radiator as shown in Figure 1 comprises up and down twoheader tube 41 and DuoGen radiating tube 42.

As shown in Figure 3 and Figure 4, toupper header pipe 41 wherein, on the sidewall ofradiating tube 42 grafting sides, process one sectionflat segments 51 that inner surface is parallel with outer surface,flat segments 51 upper edge header tube vertically, processing a plurality of not isometrical hole that is provided with at interval is radiatingtube installing hole 43, radiatingtube installing hole 43 is a stepped hole, the inner little outer end of stepped hole is big, be stepped hole aperture at interior, macropore outside, the aperture of macropore is greater than the external diameter ofradiating tube 42, and the aperture of aperture is less than the external diameter ofradiating tube 42; The macropore of stepped hole can be isometrical hole (straight hole), can also be taper hole, and the macropore that only shows stepped hole among the figure is the situation of isometrical hole (straight hole).After stepped hole machines, processnipple installing hole 49 in the one or both ends of upper header pipe; The processing mode of lower collecting box pipe is same as described above, and the quantity of the stepped hole on the lower collecting box pipe, size and position are corresponding with the stepped hole on the upper header pipe.

Manyradiating tubes 42 are adopted identical manufacturing process, are that example describes with wherein one only.As shown in Figure 5, respectively process theinserting section 44 of dimensional parameters unanimity at the two ends ofradiating tube 42, the radial dimension ofinserting section 44 is less than the radiating tube body, and insertingsection 44 forms positioning table 45 with the transition position of radiating tube body.The radial dimension of insertingsection 44 is corresponding with the aperture of stepped hole on the header tube.

After above-mentioned the machining, the inserting section of many radiating tube lower ends is inserted successively in the radiating tube installing hole of lower collecting box pipe, then the inserting section of many radiating tube upper ends is inserted in the radiating tube installing hole of upper header pipe successively.After grafting is finished, one by one enlarging flange (riveted joint) is carried out at the two ends of radiating tube simultaneously by riveting machine, promptly under the effect of riveting machine, turn up and formflange 46 in the end of insertingsection 44,flange 46 cooperates with positioning table 45header tube 41 andradiating tube 42 is riveted together, formweld zone 47 between the macropore hole wall of stepped hole and the outer surface ofradiating tube 42, the structure after the riveted joint as shown in Figure 6.The structure of riveting machine and course of action see following narration for details.

As shown in Figure 2, after riveted joint was finished, 47 carried out soldering in the weld zone, and the seal 48 that cored solder forms is connected as a single entity with sealing betweenheader tube 41 and theradiating tube 42 and with the two.

After soldering is finished, nipple 50 is welded in thenipple installing hole 49, can processes heating radiator as depicted in figs. 1 and 2, nipple is used for pipe laying or conduit coupling.

Another kind of implementation of the present invention and above-mentioned implementation are basic identical, and its difference is: as shown in Figure 7, the radiatingtube installing hole 43 on theheader tube 41 is a taper hole.The mode of riveted joint and welding is with above-mentioned also identical, and as shown in Figure 8, radiating tube also cooperates with positioning table 45 byflange 46 with header tube to be realized being riveted together, and is formed for theweld zone 47 of soldering between the outer surface of the hole wall of taper hole outer end and radiatingtube 42.

Certainly, also can not establishflat segments 51 on twoheader tube 41 up and down, radiatingtube installing hole 43 can be directly arranged on the cambered surface of header tube, but do not establishflat segments 51 and can bring following problem, after being the insertingsection 44 insertion radiatingtube installing holes 43 of radiating tube, because the edge of radiatingtube installing hole 43 is on the cambered surface, relatively more difficult during riveted joint, cause riveted joint not firm easily.Therefore, this practicality serves as preferred with the technical scheme that radiatingtube installing hole 43 is located on thisflat segments 51.

The riveted joint of header tube of the present invention and radiating tube realizes that by riveting machine the structure of riveting machine is as described below:

As Fig. 9 and radiator riveting machine shown in Figure 10, compriseframe 1,frame 1 bottom is connected withfixed head 2, fixedhead 2 tops are provided with thesliding panel 3 that is slidingly connected on theframe 1,frame 1 top is provided with power set, power set aremotor 23,motor 23 is connected withmain transmission box 21 power atframe 1 top,main transmission box 21 is the worm and gear transmission case,main transmission box 21 is connected withmotor 23 power by worm screw, be bolted with in the worm gear and promote leadingscrew 22, it is affixed with slidingpanel 3 to promote leadingscrew 22, andmotor 23 is bymain transmission box 21, promoting leadingscrew 22 drivingsliding panels 3 slides up and down along frame 1.Press the direction of Fig. 1 on drawing, on the lower surface of the upper surface of the left side offixed head 2 and slidingpanel 3, fixedhead 2 and slidingpanel 3, respectively be connected with locating piece 5, locating piece 5 is the polylith that is provided with at interval, locating piece 5 is provided with and is used for header tube location U type groove, the top locating piece 5 U type channel opening down, the U type channel opening of the locating piece 5 of below is up; On the right side offixed head 2 and slidingpanel 3, respectively slidely connectslide 4 onfixed head 2 and the sliding panel 3.Twoslides 4 are driven by same slippage power set, and the slippage power set comprise and are fixed inframe 1 top and thetransmission case 18 that is connected withservomotor 17 power, are fixed infirst gearbox 19 on thefixed head 2 and are fixed insecond gearbox 20 on thesliding panel 3;First gearbox 19 is by theslide 4 that the leading screw that is connected with its power 24 drives on thefixed heads 2, is connected with thedriving gear 30 that is connected with on the output shaft of drivengear 31, thefirst gearboxes 19 with drivengear 31 engagements on the leading screw 24;Second gearbox 20 is by theslide 4 that the leading screw that is connected with its power 25 drives on thesliding panels 3, also is connected with thedriving gear 30 that also is connected with on the output shaft of drivengear 31, thesecond gearboxes 20 with drivengear 31 engagements on the leading screw 25.Transmission case 18 is connected with second gearbox, 20 power withfirst gearbox 19 by thesplined shaft 26 that is connected with its power, can realize being connected in the process thatsecond gearbox 20 moves up and down with slidingpanel 3 with the power ofsplined shaft 26, this syndeton is a prior art, does not repeat them here.Respectively be connected withrivet rod 6 on twoslides 4, tworivet rods 6 moving and can walk in the U of locating piece 5 type groove with twoslides 4, that is to say, be connected therivet rod 6 on theslide 4 on thefixed head 2, can in the U of the locating piece on the fixed head 25 type groove, walk, be connected therivet rod 6 on theslide 4 on thesliding panel 3, can in the U of the locating piece on the sliding panel 35 type groove, walk.The structure of tworivet rods 6 as shown in figure 11, thepush rod 8 thatpiston 7 is housed inrivet rod 6 inner chambers and is connected withpiston 7,push rod 8 is connected with thrust unit power on being fixed inslide 4, thrust unit can adopt oil cylinder 29, the side ofrivet rod 6 corresponding riveted joint positions is provided with diehole 9, slidely connect die 10 in thedie hole 9, the inner of die 10 is provided withboss 11, the outer back-movingsprings 12 that are with betweenboss 11 andrivet rod 6 inner chamber chamber walls of die 10, be provided with inrivet rod 6 inner chambers between its end wall and the piston and the power transmission that underpiston 7 extruding, die 10 can be ejecteddie hole 9 be situated between and put.Power transmission is situated between and puts the elasticity power transmission that can be distortion behind the pressurized, goes to press the back to restore and be situated between and put, the elastomer made fromelastic caoutchouc 27 for example, and power transmission is situated between to put and also can be the liquid power transmission and be situated between and put, for example hydraulic oil; Realization is put in ejecting by power transmission Jie of die 10, resetting of die 10 realized by back-movingspring 12, only show power transmission Jie among the figure and be changed toelastomer 27 these a kind of modes made from elastic caoutchouc, changeelastomer 27 into hydraulic oil, just can realize the another way that power transmission is situated between and puts.

As Fig. 9 and shown in Figure 10, riveting machine also is provided with the radiating tube positioner between the locating piece 5 on fixedhead 2 and the sliding panel 3.The radiating tube positioner comprises thelead 13 that is fixed on thefixed head 2, slidely connecting on thelead 13 can blockedsupport 14, support 14 slidable benefits are to adapt to the radiator of different size, the locking ofsupport 14 can be realized by the puller bolt that is spirally connected thereon, be connected withlimiting plate 15 on the upper surface ofsupport 14, limitingplate 15 is provided with the U type groove that is used to locate radiating tube, and the opening direction of the opening direction of the U type groove of radiating tube and the U type groove of locating piece 5 is vertical relation.Respectively be connected with removable lockable location-plate 16 on the lower surface ofsupport 14 and the fixed head 2.The removable lockable of location-plate 16 can be realized by bearing 28, be respectively to be connected with bearing 28 onsupport 14 and the fixedhead 2,bearing 28 is provided with the strip hole of length direction perpendicular to rivetrod 6 directions of motion, bearing 28 is realized and being connected ofsupport 14 and fixedhead 2 by being installed on bolt in the strip hole, location-plate 16 is connected on thebearing 28, the change of bearing 28 positions can bring the change of location-plate 16 positions, to adapt to the heat sink section bar of different size.

The radiator riveting machine of said structure, its use is as follows: at first the lower collecting box pipe with radiator places in the U type groove of the locating piece 5 on the fixedhead 2, then many expansion sets there is the radiating tube of heat sink section bar to be inserted into successively in the jack of lower collecting box pipe, make the upper end of radiating tube be positioned at U type groove on thelimiting plate 15, again the upper header pipe is inserted on the many radiating tubes, adjust the position of location-plate 16, so that the fin of heat sink section bar abuts on the location-plate 16, prevent the unordered of fin towards entanglement; After above-mentioned work is finished, starting power set drives slidingpanel 3 and glides that header tube and the extruding of Duo Gen radiating tube are fixed up and down, starting the slippage power set then drives two rivet rods and moves simultaneously, two rivet rods penetrate respectively, the slippage power set stop when arriving first riveted joint station in the lower collecting box pipe, at this moment, two oil cylinders move simultaneously to be situated between to put by power transmission two dies are ejected, rivet simultaneously at two ends to radiating tube, oil cylinder counteragent after riveted joint is finished, power transmission Jie puts the pressure releasing and resets, two dies reset under the effect of back-moving spring, and the riveted joint of first riveted joint station is finished.After the riveted joint of first riveted joint station is finished, the alternating movement of rivet rod and die can be riveted successively to other radiating tube, and after the riveted joint for the treatment of whole radiating tubes was finished, two rivet rods withdrawed from header tube up and down, slide away the upper header pipe on thesliding panel 3, radiator is taken off get final product.If on the radiating tube not expansion set heat sink section bar is arranged, the process of its riveted joint is same as described above, just need not to adjust the position of location-plate 16.

Claims (5)

1. the processing method of a heating radiator is characterized in that may further comprise the steps:

(1) respectively process a plurality of radiating tube installing holes that are provided with along its longitudinal separation on two header tube, the radiating tube installing hole is big not isometrical hole, inner little outer end, respectively processes the nipple installing hole two header tube one or both ends separately;

(2) respectively process the inserting section of diameter at the two ends of many radiating tubes, make the transition position of inserting section and radiating tube body form positioning table less than the radiating tube body;

(3) many radiating tubes and two header tube are pegged graft, make two inserting section of each radiating tube stretch into the inner chamber of two header tube by the radiating tube installing hole respectively and its positioning table is leaned on the hole wall of radiating tube installing hole, then enlarging is carried out in the end of the inserting section of each radiating tube, make the end formation flange that turns up, flange cooperates with positioning table radiating tube is riveted on the header tube;

(4) after riveted joint is finished, carry out soldering in the weld zone that between the outer end of radiating tube installing hole hole wall and radiating tube outer surface, forms, header tube and radiating tube weldering are connected as a single entity;

(5) after soldering is finished, nipple is welded in the nipple installing hole.

2. the processing method of heating radiator according to claim 1 is characterized in that described radiating tube installing hole is a taper hole.

3. the processing method of heating radiator according to claim 1 is characterized in that described radiating tube installing hole is a stepped hole.

4. the processing method of heating radiator according to claim 3, the macropore that it is characterized in that described stepped hole is a taper hole.

5. according to the processing method of the described heating radiator of arbitrary claim among the claim 1-4, it is characterized in that respectively processing one section flat segments that inner surface is parallel with outer surface on the sidewall of described two header tube, the radiating tube installing hole is arranged on this flat segments.

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