CN103934326A - Machining method and machining equipment for small elbow of heat exchanger - Google Patents
Machining method and machining equipment for small elbow of heat exchanger Download PDFInfo
- Publication number
- CN103934326A CN103934326A CN201410143882.7A CN201410143882A CN103934326A CN 103934326 A CN103934326 A CN 103934326A CN 201410143882 A CN201410143882 A CN 201410143882A CN 103934326 A CN103934326 A CN 103934326A
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- core bar
- straight section
- tail end
- eyesight elbow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000003754 machining Methods 0.000 title abstract 7
- 238000005452 bending Methods 0.000 claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 7
- 230000004438 eyesight Effects 0.000 claims description 44
- 238000003672 processing method Methods 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 6
- 238000005520 cutting process Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 10
- 229910052802 copper Inorganic materials 0.000 description 10
- 239000010949 copper Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
Abstract
The invention discloses a machining method and machining equipment for a small elbow of a heat exchanger. The machining method for the small elbow of the heat exchanger comprises the steps of feeding, core bar feeding, bending, core bar retreating, saw cutting and discharging. In the feeding step, the feeding length of a pipe is increased so that the length of the straight segment at the tail end of the pipe which is bent can be greater than or equal to 20 mm. According to the machining method for the small elbow of the heat exchanger, the feeding length of the pipe is increased so that the length of the remaining straight segment at the tail end can be increased after the small elbow is bent by 180 degrees, the purpose of lowering an oblique opening of a pipe orifice is achieved, and then the saw-cut straight segment at the tail end can be used as a short pipe. By means of the machining method for the small elbow of the heat exchanger, waste of the cut tailing with the oblique opening is avoided, and the material utilization rate is increased; moreover, the small elbow and the short pipe are produced in parallel, the production cycle is shortened, production efficiency is improved, and investment of personnel and equipment is reduced.
Description
Technical field
The present invention relates to air conditioner parts, particularly relate to a kind of processing method and process equipment thereof of heat exchanger eyesight elbow.
Background technology
The eyesight elbow (semi-circular tube) of fin-tube heat exchanger is a kind of copper pipe series products in air conditioner parts, the eyesight elbow process equipment of processing eyesight elbow is very ripe at present, eyesight elbow process equipment procedure of processing is as follows: clamping → copper pipe feeding → core bar enters → bends → move back → sawing → discharging → clamping of core bar ..., so circulation.
The shortcoming of this kind of processing method is: due to copper pipe tail end straight section shorter (3～5mm), after bending, copper pipe tail end straight section there will be angle, therefore needs sawing to make the mouth of pipe rounding of eyesight elbow concordant, and the tailing of sawing can form waste of material.
In addition, the short copper pipe of demand more and more in the accessory of air-conditioning, and the blanking of short copper pipe is a kind of technical bottleneck for existing chipless blanking machine always.
Summary of the invention
For above-mentioned prior art present situation, technical problem to be solved by this invention is, a kind of processing method of heat exchanger eyesight elbow is provided, it can produce short copper pipe in producing eyesight elbow, the waste of avoiding sawing angle tailing to cause, improve stock utilization, and shorten the production cycle, enhance productivity.
Another technical problem to be solved by this invention is, a kind of process equipment of heat exchanger eyesight elbow is provided, and it can produce short copper pipe in producing eyesight elbow, the waste of avoiding sawing angle tailing to cause, improve stock utilization, and shorten the production cycle, enhance productivity.
In order to solve the problems of the technologies described above, the processing method of a kind of heat exchanger eyesight elbow provided by the present invention, comprise the following steps: feeding, core bar enter, bend, core bar moves back, sawing and discharging, in described feeding step, increase the feed length of tubing, make tubing bending rearward end straight section length be more than or equal to 20mm.
In an embodiment, described tail end straight section length is 22～50mm therein.
In an embodiment, before sawing, described tail end straight section is fixed therein.
In an embodiment, described core bar fixes described tail end straight section thereby make core bar part exit described tubing by core bar in regressing suddenly therein.
In an embodiment, by clamp mechanism, described tail end straight section is fixed therein.
The process equipment of a kind of heat exchanger eyesight elbow provided by the present invention, comprising:
Curved mould;
Clamp die mechanism, described clamp die mechanism is fixed on a side of described curved mould, is provided with the gap entering for saw blade between described clamp die mechanism and described curved mould;
Bending mechanism, described bending mechanism and described clamp die mechanism are relatively arranged at the opposite side of described curved mould, described bending mechanism comprises connecting plate, pattern, core bar and the first drive unit, described pattern can be slidably arranged on described connecting plate along the vertical direction of described curved mold shaft line, and there is the initial position that makes core bar insert tubing completely and make core bar exit the final position of tubing completely, described core bar is fixed on described pattern, and described the first drive unit is used for driving described pattern;
Increase haul distance between described initial position and described final position and the haul distance of described the first drive unit, make tubing bending rearward end straight section length be more than or equal to 20mm.
In an embodiment, described tail end straight section length is 22～50mm therein.
In an embodiment, described pattern also has the centre position between described initial position and described final position therein, and in the time that described pattern is positioned at described centre position, described core bar part exits described tubing.
Therein in an embodiment; the process equipment of described heat exchanger eyesight elbow also comprises backgauge flap; described backgauge flap is arranged on the end face of described clamp die mechanism near one end, described gap, and described backgauge flap comprises the base plate of horizontally set and is arranged at the upwardly extending flange of described base plate away from one end, described gap.
In an embodiment, between described backgauge flap and described clamp die mechanism, be provided with elastomeric element therein.
Therein in an embodiment; the process equipment of described heat exchanger eyesight elbow also comprises clamping device; described clamping device comprises compact heap and the second drive unit; described compact heap is movable to be arranged; and there is clamped position and non-clamping position; when described compact heap is during in described clamped position, described compact heap coordinates described tail end straight section is fixed with the clamping seat of honour of described clamp die mechanism, and described the second drive unit is used for driving described clamp.
In an embodiment, described clamping device is arranged on the side of described bending mechanism near described curved mould therein.
The processing method of heat exchanger eyesight elbow of the present invention and process equipment thereof, by increasing the feed length of tubing, the residue tail end straight section that eyesight elbow is bent after 180 ° increases, reach the object that reduces mouth of pipe angle, thereby making tail end straight section that sawing is got off can be used as short tube is used, the waste of having avoided sawing angle tailing to cause, improves stock utilization; And, realize eyesight elbow and short tube parallel production, shorten the production cycle, improve production efficiency, reduce the input of personnel and equipment.
The beneficial effect that additional technical feature of the present invention has will describe in this description detailed description of the invention part.
Brief description of the drawings
Fig. 1 is the perspective view of the process equipment in one of them embodiment of the present invention;
Fig. 2 is the perspective view of the clamp die mechanism of process equipment shown in Fig. 1;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is the perspective view of the process equipment in another embodiment of invention;
Fig. 5 is the perspective view of the bending mechanism of process equipment shown in Fig. 4.
Description of reference numerals: 1, tubing; 2, tail end straight section; 3, eyesight elbow; 4, the clamping seat of honour; 5, lower of clamping; 6, gap; 7, connecting plate; 8, push pedal; 9, slide plate; 10, pattern; 11, oil cylinder; 12, core bar; 13, curved mould; 14, base; 15, saw blade; 17, backgauge flap; 17a, base plate; 17b, flange; 18, spring; 19, compact heap; 20, cylinder; 21, fixed head.
Detailed description of the invention
Below with reference to accompanying drawing, also the present invention is described in detail in conjunction with the embodiments.It should be noted that, in the situation that not conflicting, the feature in following embodiment and embodiment can combine mutually.
The processing method of heat exchanger eyesight elbow of the present invention is same as the prior art, includes following steps: feeding, core bar enter, bend, core bar moves back, sawing and discharging.The processing method of heat exchanger eyesight elbow of the present invention unlike the prior art, in described feeding step, increases the feed length of tubing 1, makes tubing 1 bend rearward end straight section 2 length and is more than or equal to 20mm.
By increasing the feed length of tubing 1, the residue tail end straight section 2 that eyesight elbow 3 is bent after 180 ° increases, and reaches the object that reduces mouth of pipe angle.Experiment showed, eyesight elbow 3 is bent to 180 ° after more than the reserved 20mm of straight section, without obvious angle, mouth of pipe difference of height≤0.5mm, is used thereby the tail end straight section 2 that sawing is got off can be used as short tube.Therefore, the processing method of heat exchanger eyesight elbow of the present invention, the waste of having avoided sawing angle tailing to cause, improves stock utilization; And, realize short tube and eyesight elbow 3 parallel productions, shorten the production cycle, improve production efficiency, reduce the input of personnel and equipment.
Tail end straight section 2 length are preferably 22～50mm, and tail end straight section 2 length, within the scope of this, only need be transformed a little on the basis of existing process equipment, without renewal part, reach the object that reduces improvement cost.
Owing to having reluctant batch of cutting edge of a knife or a sword after 2 excisions of tail end straight section, therefore before sawing, first make described tail end straight section 2 fixing.After tail end straight section 2 is fixing, batch cutting edge of a knife or a sword problem that can avoid saw blade 15 cut-in without balls to cause.Described tail end straight section 2 is fixed and can be adopted following two kinds of modes: one is in core bar regresses suddenly, make described tail end straight section 2 fixing thereby make core bar 12 parts exit described tubing 1 by core bar 12.Another kind is, by increasing the fixing described tail end straight section 2 of clamp mechanism.
Figure 1 shows that the perspective view of the process equipment of the heat exchanger eyesight elbow in one of them embodiment of the present invention.As described in Figure, the process equipment of the heat exchanger eyesight elbow in the present embodiment comprises: base 14, curved mould 13, clamp die mechanism, bending mechanism and saw blade 15, wherein, base 14 is for providing support whole process equipment.Described curved mould 13 is fixed on described base 14.As shown in Figure 2,3, described clamp die mechanism is fixed on a side of described curved mould 13, is provided with the gap 6 entering for saw blade 15 between described clamp die mechanism and described curved mould 13, and described clamp die mechanism comprises lower 5 of the clamping seat of honour 4 and clamping.
Described bending mechanism and described clamp die mechanism are relatively arranged at the opposite side of described curved mould 13, and described bending mechanism can be around 180 ° of rotations of the axis of described curved mould 13.Described bending mechanism comprises connecting plate 7, pattern 10, core bar 12 and the first drive unit, described pattern 10 can be slidably arranged on described connecting plate 7 along the vertical direction of described curved mould 13 axis, and there is the initial position that makes core bar 12 insert tubing 1 completely and make core bar 12 exit the final position of tubing 1 completely, described core bar 12 is fixed on described pattern 10, described the first drive unit is used for driving described pattern 10 to slide between described initial position and described final position, the first drive unit comprises slide plate 9, push pedal 8 and oil cylinder 11, described pattern 10 is fixed on described slide plate 9, the piston rod of described oil cylinder 11 is connected with slide plate 9 through push pedal 8.The haul distance of described pattern 10 and described oil cylinder 11, makes tubing 1 bend rearward end straight section 2 length and is more than or equal to 20mm.Preferably, tail end straight section 2 length are 22～50mm.
Preferably, described pattern 10 also has the centre position between described initial position and described final position, in the time that described pattern 10 is positioned at described centre position, described core bar 12 parts exit described tubing 1, thereby make described tail end straight section 2 fixing by core bar 12, batch cutting edge of a knife or a sword problem of avoiding saw blade 15 cut-in without balls to cause.
Preferably; also comprise backgauge flap 17; described backgauge flap 17 is arranged on the end face of described clamp die mechanism near 6 one end, described gap, and described backgauge flap 17 comprises the base plate 17a of horizontally set and is arranged at the upwardly extending flange 17b (see Fig. 2,3) of described base plate 17a away from 6 one end, described gap.Preferably, between described backgauge flap 17 and described clamp die mechanism, be provided with elastomeric element, elastomeric element is preferably spring 18.Backgauge flap 17 ensures that tailing copper pipe can depart from core bar 12 in the time that core bar 12 moves back entirely, ensures the stability of equipment.
In addition, need the control system of the process equipment of heat exchanger eyesight elbow to adjust, make its job step be: clamping → copper pipe feeding → core bar enters → bends → the entirely move back → discharging → clamping of partly move back → sawing → core bar of core bar ..., so circulation.
Other structures of the process equipment of the heat exchanger eyesight elbow in the present embodiment are same as the prior art, do not repeat them here.
Figure 4 shows that the perspective view of the process equipment of the heat exchanger eyesight elbow in another embodiment of the present invention, different from previous embodiment is, the process equipment of the heat exchanger eyesight elbow in the present embodiment is provided with clamping device, for fixed described tail end straight section 2 before sawing.Preferably, described clamping device is arranged at the side of described connecting plate 7 near described curved mould 13, and it comprises compact heap 19 and for driving the second drive unit of described clamp, is provided with the U-shaped groove mating with tubing 1 on the clamping face of described compact heap 19.Bending completes after core bar 12 returns, and the second drive unit drives compact heap 19 to press down tail end straight section 2, makes to produce without batch cutting edge of a knife or a sword after sawing, ensures product quality.The second drive unit is preferably cylinder 20, and connecting plate 7 arranges fixed head 21 on the side near curved mould 13, and cylinder 20 is fixed on fixed head 21 in any feasible mode.Because cylinder 20 is fixed on this position, need to transform the oil cylinder 11 at core bar 12 places, make the reserved space of enough placing cylinder 20 of oil cylinder 11 afterbodys, cylinder 20 is loaded on to oil cylinder 11 afterbodys.
In addition, need the control system of the process equipment of heat exchanger eyesight elbow to adjust, make its job step be: clamping → feeding → core bar enters → bends → move back → discharging → clamping of enter → sawing → cylinder of move back → cylinder of core bar ..., so circulation.
The above embodiment has only expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (12)
1. the processing method of a heat exchanger eyesight elbow, comprise the following steps: feeding, core bar enter, bend, core bar moves back, sawing and discharging, it is characterized in that, in described feeding step, increase the feed length of tubing, make tubing bending rearward end straight section length be more than or equal to 20mm.
2. the processing method of heat exchanger eyesight elbow according to claim 1, is characterized in that, described tail end straight section length is 22～50mm.
3. the processing method of heat exchanger eyesight elbow according to claim 1 and 2, is characterized in that, before sawing, described tail end straight section is fixed.
4. the processing method of heat exchanger eyesight elbow according to claim 3, is characterized in that, described core bar fixes described tail end straight section thereby make core bar part exit described tubing by core bar in regressing suddenly.
5. the processing method of heat exchanger eyesight elbow according to claim 3, is characterized in that, by clamp mechanism, described tail end straight section is fixed.
6. a process equipment for heat exchanger eyesight elbow, comprising:
Curved mould;
Clamp die mechanism, described clamp die mechanism is fixed on a side of described curved mould, is provided with the gap entering for saw blade between described clamp die mechanism and described curved mould;
Bending mechanism, described bending mechanism and described clamp die mechanism are relatively arranged at the opposite side of described curved mould, described bending mechanism comprises connecting plate, pattern, core bar and the first drive unit, described pattern can be slidably arranged on described connecting plate along the vertical direction of described curved mold shaft line, and there is the initial position that makes core bar insert tubing completely and make core bar exit the final position of tubing completely, described core bar is fixed on described pattern, and described the first drive unit is used for driving described pattern;
It is characterized in that, increase haul distance between described initial position and described final position and the haul distance of described the first drive unit, make tubing bending rearward end straight section length be more than or equal to 20mm.
7. the process equipment of heat exchanger eyesight elbow according to claim 6, is characterized in that, described tail end straight section length is 22～50mm.
8. according to the process equipment of the heat exchanger eyesight elbow described in claim 6 or 7; it is characterized in that; described pattern also has the centre position between described initial position and described final position, and in the time that described pattern is positioned at described centre position, described core bar part exits described tubing.
9. the process equipment of heat exchanger eyesight elbow according to claim 8; it is characterized in that; also comprise backgauge flap; described backgauge flap is arranged on the end face of described clamp die mechanism near one end, described gap, and described backgauge flap comprises the base plate of horizontally set and is arranged at the upwardly extending flange of described base plate away from one end, described gap.
10. the process equipment of heat exchanger eyesight elbow according to claim 9, is characterized in that, between described backgauge flap and described clamp die mechanism, is provided with elastomeric element.
11. according to the process equipment of the heat exchanger eyesight elbow described in claim 6 or 7; it is characterized in that; also comprise clamping device; described clamping device comprises compact heap and the second drive unit; described compact heap is movable to be arranged, and has clamped position and non-clamping position, when described compact heap is during in described clamped position; described compact heap coordinates described tail end straight section is fixed with the clamping seat of honour of described clamp die mechanism, and described the second drive unit is used for driving described clamp.
The process equipment of 12. heat exchanger eyesight elbows according to claim 11, is characterized in that, described clamping device is arranged on the side of described bending mechanism near described curved mould.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143882.7A CN103934326B (en) | 2014-04-10 | 2014-04-10 | The process equipment of heat exchanger eyesight elbow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410143882.7A CN103934326B (en) | 2014-04-10 | 2014-04-10 | The process equipment of heat exchanger eyesight elbow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103934326A true CN103934326A (en) | 2014-07-23 |
| CN103934326B CN103934326B (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410143882.7A Expired - Fee Related CN103934326B (en) | 2014-04-10 | 2014-04-10 | The process equipment of heat exchanger eyesight elbow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103934326B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226755A (en) * | 2014-09-05 | 2014-12-24 | 常熟市佳泰金属材料有限公司 | Turnover type automatic elbow forming machine for condenser |
| CN108620460A (en) * | 2018-07-19 | 2018-10-09 | 珠海格力智能装备有限公司 | Pipe bending mechanism |
| CN110560591A (en) * | 2019-09-30 | 2019-12-13 | 珠海格力智能装备有限公司 | Bending device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08117844A (en) * | 1994-10-27 | 1996-05-14 | Miyamae:Kk | Production of curvilinearly bent pipe |
| CN1276274A (en) * | 2000-07-24 | 2000-12-13 | 孙惠民 | Technology for manufacturing elbow pipe with straight segment |
| GB2400056A (en) * | 2003-04-03 | 2004-10-06 | Denso Corp | Method and apparatus for manufacturing heat exchanger tubing |
| CN1820869A (en) * | 2006-03-21 | 2006-08-23 | 珠海格力电器股份有限公司 | Digital control pipe bending machine |
| CN201807639U (en) * | 2009-12-26 | 2011-04-27 | 中山市奥美森工业有限公司 | Tube bending machine of jumper tube |
| CN202701146U (en) * | 2012-07-02 | 2013-01-30 | 株洲南方燃气轮机成套制造安装有限公司 | Mold for preparing elbow |
| CN203900192U (en) * | 2014-04-10 | 2014-10-29 | 珠海格力电器股份有限公司 | Processing equipment for heat exchanger small elbow |
-
2014
- 2014-04-10 CN CN201410143882.7A patent/CN103934326B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08117844A (en) * | 1994-10-27 | 1996-05-14 | Miyamae:Kk | Production of curvilinearly bent pipe |
| CN1276274A (en) * | 2000-07-24 | 2000-12-13 | 孙惠民 | Technology for manufacturing elbow pipe with straight segment |
| GB2400056A (en) * | 2003-04-03 | 2004-10-06 | Denso Corp | Method and apparatus for manufacturing heat exchanger tubing |
| CN1820869A (en) * | 2006-03-21 | 2006-08-23 | 珠海格力电器股份有限公司 | Digital control pipe bending machine |
| CN201807639U (en) * | 2009-12-26 | 2011-04-27 | 中山市奥美森工业有限公司 | Tube bending machine of jumper tube |
| CN202701146U (en) * | 2012-07-02 | 2013-01-30 | 株洲南方燃气轮机成套制造安装有限公司 | Mold for preparing elbow |
| CN203900192U (en) * | 2014-04-10 | 2014-10-29 | 珠海格力电器股份有限公司 | Processing equipment for heat exchanger small elbow |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104226755A (en) * | 2014-09-05 | 2014-12-24 | 常熟市佳泰金属材料有限公司 | Turnover type automatic elbow forming machine for condenser |
| CN108620460A (en) * | 2018-07-19 | 2018-10-09 | 珠海格力智能装备有限公司 | Pipe bending mechanism |
| CN110560591A (en) * | 2019-09-30 | 2019-12-13 | 珠海格力智能装备有限公司 | Bending device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103934326B (en) | 2016-08-17 |
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Granted publication date: 20160817 |