CN102756239B - Method for manufacturing silencers for automotive air conditioners - Google Patents
Method for manufacturing silencers for automotive air conditioners Download PDFInfo
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- CN102756239B CN102756239B CN201210223171.1A CN201210223171A CN102756239B CN 102756239 B CN102756239 B CN 102756239B CN 201210223171 A CN201210223171 A CN 201210223171A CN 102756239 B CN102756239 B CN 102756239B
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Abstract
The invention discloses a method for manufacturing silencers for automotive air conditioners, which comprises the following steps: 1) blanking; 2) end-flattening and passivating; 3) grinding workpieces; 4) extruding a U-shaped blank; 5) end-flattening the U-shaped blank; 6) manufacturing partition plate accessories of a chamber; 7) manufacturing accessories of a silencing tube; 8) synthesizing the accessories; 9) machining the workpieces; 10) synthesizing through argon arc welding; 11) finishing burrs; 12) carrying out airtight leakage detecting; 13) cleaning and drying; and 14) inspecting, packing and warehousing: carrying out final inspection on products subjected to cleaning and drying, and carrying out packaging and warehousing on qualified products. The method disclosed by the invention has the beneficial effects that: after U-shaped die blanks are formed through carrying out cold extrusion moulding on bar stocks, a silencer is formed through machining the U-shaped die blanks by using a blank component machine, and the product size and process design factors can be accurately controlled; a silencer product is good in appearance mirror image and not required to be repaired; a silencer product is strong in specification and shape controllability and good in physical and chemical properties, and the process conforms to the requirements of product process design; the production rate is high, the production cost is low, and the rate of finished products is high; and the method is high in degree of automation, energy-saving, environmental-friendly, safe and reliable.
Description
Technical field
The present invention relates to a kind of car air-conditioner muffler manufacture method.
Background technology
In car air-conditioner silencer (multi-cavity is resonant) manufacture method, to the forming technique of U-shaped mold base, after existing process mainly adopts and waters mold base hinge sky and machined, manual welding synthesis (inner chamber annex is preset) formed product, except product height (or length) size, profile are controlled, all the other Process Design key elements all cannot be controlled, because workpiece material is cast through high temperature melting, the physicochemical property of product changes (restructuring of molecule crystal grain, burning, impure rear embrittlement etc.), cannot adapt to the Process Design requirement of product; Throughput rate low (average 1PCS/80min, day work team output≤400pcs/8h), production cost high (unit cost waste of raw materials rate >=800% × 2); And percent defective high (process PPM >=15000), serious waste of resources; Belong to the production technology of serious backwardness, aging, high cost.
Summary of the invention
The object of this invention is to provide a kind of car air-conditioner muffler manufacture method, adopt bar member cold-extrusion shaping U-shaped mold base technology, meet product process designing requirement, solve the above-mentioned deficiency in existing technique.
The present invention is achieved through the following technical solutions its object:
A kind of car air-conditioner muffler manufacture method, comprises the following steps:
1) blanking: raw material are cut by aluminium automatic stock cutter;
2) flat mouth passivation: by precision meter lathe to the monolateral chamfering passivation of raw material after cutting;
3) workpiece grinding: ground the workpiece after chamfering passivation by bedroom parallel vibrating grinder, described process of lapping is combined with abrasive medium, make Forming Workpiece profile level and smooth without rib, described abrasive medium is the mixture of quartz, Tao Zhu and steel ball;
4) U embryo extrudes: carry out cold extrusion by descending hydraulic punch to workpiece after the surface of the work after grinding is evenly sprayed talcum powder, make component shaping be U-shaped back cover opening mold base, described Cold Extrusion Process coordinates diel;
5) U embryo flat mouth: by the openend chamfering passivation of precision meter lathe to the U-shaped back cover opening mold base workpiece after cold-extrusion shaping;
6) compartment spacers annex manufactures: carry out punching by the twin columns press machine that can incline to compartment spacers annex, and described punching process coordinates diel;
7) hush pipe annex manufactures: carry out processing and manufacturing by precision meter lathe to noise reduction pipe fittings;
8) annex synthesis: riveted the hush pipe annex after the compartment spacers annex after above-mentioned punching and processing by riveter, described riveting process coordinates riveting clamping mold;
9) workpiece machine adds: carry out processing and manufacturing by Digit Control Machine Tool to the U-shaped back cover opening mold base workpiece after above-mentioned chamfering passivation;
10) argon arc welding synthesis: the U-shaped back cover opening mold base workpiece after the synthesis annex after above-mentioned riveted joint and machine being added by argon arc welding welding machine carries out welding synthesis;
11) dressing burr: adopt scraper or smooth file to remove the unnecessary wlding of above-mentioned welding sintetics weld, and with fine sandpaper, polished in repair place;
12) airtight leak detection: airtight leak test checking is carried out to the welding sintetics after above-mentioned dressing burr by airtight leak test device, described airtight leak test device comprises airtight leak test platform, clamping, pressure air compressor machine and air accumulator;
13) cleaning, drying: the sintetics after above-mentioned airtight leak test checking is cleaned and dried by supersonic wave cleaning machine and baking oven, described supersonic wave cleaning machine is provided with the groove of heating that operating temperature is 80 DEG C ~ 90 DEG C, described in heat and be provided with the cleaning fluid of PH 2 ~ 3 in groove; And
14) test package warehouse-in: carry out final inspection to product after above-mentioned cleaning, drying, inspected and to have put in storage the qualified packing of product afterwards, packaging material adopt the environmental protection package things such as corrugation five ply paper bag.
Beneficial effect of the present invention is: appearance mirror picture is good, and workpiece can not be caused seriously to press, scratch, without the need to repairing; Product specification shape can be handling extremely strong, the good physical and chemical properties of product; Throughput rate is high, and production cost is low: unit waste of raw materials rate≤5%, and solder flux, wlding are accurately located according to raw material, and yield rate is high; And automaticity is high, energy-conserving and environment-protective, safe and reliable.
Detailed description of the invention
A kind of car air-conditioner muffler manufacture method described in the embodiment of the present invention, comprises the following steps:
1) blanking: raw material are cut by aluminium automatic stock cutter;
2) flat mouth passivation: by precision meter lathe to the monolateral chamfering passivation of raw material after cutting;
3) workpiece grinding: the workpiece after chamfering passivation is ground by bedroom parallel vibrating grinder, described process of lapping is combined with the abrasive medium of mixing quartz, Tao Zhu and steel ball, makes Forming Workpiece profile level and smooth without rib;
4) U embryo extrudes: carry out cold extrusion by descending hydraulic punch to workpiece after the surface of the work after grinding is evenly sprayed talcum powder, make component shaping be U-shaped back cover opening mold base, described Cold Extrusion Process coordinates diel;
5) U embryo flat mouth: by the openend chamfering passivation of precision meter lathe to the U-shaped back cover opening mold base workpiece after cold-extrusion shaping;
6) compartment spacers annex manufactures: carry out punching by the twin columns press machine that can incline to compartment spacers annex, and described punching process coordinates diel;
7) hush pipe annex manufactures: carry out processing and manufacturing by precision meter lathe to noise reduction pipe fittings;
8) annex synthesis: riveted the hush pipe annex after the compartment spacers annex after above-mentioned punching and processing by riveter, described riveting process coordinates riveting clamping mold;
9) workpiece machine adds: carry out processing and manufacturing by Digit Control Machine Tool to the U-shaped back cover opening mold base workpiece after above-mentioned chamfering passivation;
10) argon arc welding synthesis: the U-shaped back cover opening mold base workpiece after the synthesis annex after above-mentioned riveted joint and machine being added by argon arc welding welding machine carries out welding synthesis;
11) dressing burr: adopt scraper or smooth file to remove the unnecessary wlding of above-mentioned welding sintetics weld, and with fine sandpaper, polished in repair place;
12) airtight leak detection: airtight leak test checking is carried out to the welding sintetics after above-mentioned amendment burr by airtight leak test device, this airtight leak test device comprises airtight leak test platform, clamping, pressure air compressor machine and air accumulator;
13) cleaning, drying: the sintetics after above-mentioned airtight leak test checking is cleaned and dried by supersonic wave cleaning machine and baking oven; This supersonic wave cleaning machine is provided with the groove of heating that operating temperature is 80 DEG C ~ 90 DEG C, is provided with the cleaning fluid of PH2 ~ 3 in groove of heating; And
14) test package warehouse-in: carry out final inspection to product after above-mentioned cleaning, drying, has inspected the rear environmental protection package thing packagings such as corrugation five ply paper bag that adopt qualified products and has put in storage.
After the inventive method adopts bar member cold-extrusion shaping U mold base, be shaped through the machined of stock part, product size, Process Design key element all can accurately control; Appearance mirror picture good (≤0.8SSSS), can not cause workpiece seriously to press, scratch, without the need to repairing; Product specification shape can handling extremely strong (only need adjust Design of Dies), the good physical and chemical properties (cold extrusion can not change the physicochemical property of metal material) of product, and its process all meets product process designing requirement; Throughput rate high (average 1PCS/10.5min, day work team output >=2500pcs/8h), production cost low (unit waste of raw materials rate≤5%), yield rate high (solder flux, wlding are accurately located according to raw material, process PPM≤1000); Automaticity is high, high-efficient energy-saving environment friendly, safe and reliable to operation.
Although above only describes the specific embodiment of the present invention example, it will be understood by those of skill in the art that these only illustrate, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change or amendment all falls into protection scope of the present invention.
Claims (5)
1. a car air-conditioner muffler manufacture method, is characterized in that, comprises the following steps:
1) blanking: raw material are cut by aluminium automatic stock cutter;
2) flat mouth passivation: by precision meter lathe to the monolateral chamfering passivation of raw material after cutting;
3) workpiece grinding: ground the workpiece after chamfering passivation by bedroom parallel vibrating grinder, described process of lapping is combined with abrasive medium, makes Forming Workpiece profile level and smooth without rib;
4) U embryo extrudes: carry out cold extrusion by descending hydraulic punch to workpiece after the surface of the work after grinding is evenly sprayed talcum powder, make component shaping be U-shaped back cover opening mold base, described Cold Extrusion Process coordinates diel;
5) U embryo flat mouth: by the openend chamfering passivation of precision meter lathe to the U-shaped back cover opening mold base workpiece after cold-extrusion shaping;
6) compartment spacers annex manufactures: carry out punching by the twin columns press machine that can incline to compartment spacers annex, and described punching process coordinates diel;
7) hush pipe annex manufactures: carry out processing and manufacturing by precision meter lathe to noise reduction pipe fittings;
8) annex synthesis: riveted the hush pipe annex after the compartment spacers annex after above-mentioned punching and processing by riveter, described riveting process coordinates riveting clamping mold;
9) workpiece machine adds: carry out processing and manufacturing by Digit Control Machine Tool to the U-shaped back cover opening mold base workpiece after above-mentioned chamfering passivation;
10) argon arc welding synthesis: the U-shaped back cover opening mold base workpiece after the synthesis annex after above-mentioned riveted joint and machine being added by argon arc welding welding machine carries out welding synthesis;
11) dressing burr: adopt scraper or smooth file to remove the unnecessary wlding of above-mentioned welding sintetics weld, and with fine sandpaper, polished in repair place;
12) airtight leak detection: airtight leak test checking is carried out to the welding sintetics after above-mentioned dressing burr by airtight leak test device;
13) cleaning, drying: the sintetics after above-mentioned airtight leak test checking is cleaned and dried by supersonic wave cleaning machine and baking oven; And
14) test package warehouse-in: final inspection is carried out to product after above-mentioned cleaning, drying, has inspected and rear the qualified packing of product have been put in storage.
2. a kind of car air-conditioner muffler manufacture method according to claim 1, is characterized in that: in step 3), and described abrasive medium is the mixture of quartz, Tao Zhu and steel ball.
3. a kind of car air-conditioner muffler manufacture method according to claim 1 and 2, is characterized in that: in step 12), and described airtight leak test device comprises airtight leak test platform, clamping, pressure air compressor machine and air accumulator.
4. a kind of car air-conditioner muffler manufacture method according to claim 3, is characterized in that: in step 13), and described supersonic wave cleaning machine is provided with the groove of heating that operating temperature is 80 DEG C ~ 90 DEG C, described in heat and be provided with the cleaning fluid of PH 2 ~ 3 in groove.
5. a kind of car air-conditioner muffler manufacture method according to claim 4, it is characterized in that: in step 14), packaging material are corrugation five ply paper bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210223171.1A CN102756239B (en) | 2012-07-02 | 2012-07-02 | Method for manufacturing silencers for automotive air conditioners |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210223171.1A CN102756239B (en) | 2012-07-02 | 2012-07-02 | Method for manufacturing silencers for automotive air conditioners |
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| CN102756239A CN102756239A (en) | 2012-10-31 |
| CN102756239B true CN102756239B (en) | 2015-07-08 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231208A (en) * | 2013-04-11 | 2013-08-07 | 浙江方宏空调设备有限公司 | Method for manufacturing cold extrusion billet prefabricated part of metal workpiece |
| CN103464986B (en) * | 2013-06-26 | 2016-04-20 | 龙泉市日盛汽车零部件有限公司 | A kind of method manufacturing automobile air conditioner silencer |
| CN105107938A (en) * | 2015-09-16 | 2015-12-02 | 广州市鸿镌金属制品有限公司 | Technique for producing convex hull product |
| CN115366611B (en) * | 2022-08-24 | 2023-03-21 | 浙江欧特立汽车空调有限公司 | Silencer for automobile air conditioner and production method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3811251A (en) * | 1971-08-25 | 1974-05-21 | S Gibel | Classifying muffler |
| CN2081888U (en) * | 1991-01-29 | 1991-07-31 | 赵水石 | Muffler for automobile motor |
| CN201284899Y (en) * | 2008-08-09 | 2009-08-05 | 高利 | Silencer for blast furnace gas pipe |
| DE102008060023A1 (en) * | 2008-12-02 | 2010-06-10 | Heinrich Gillet Gmbh | Method for producing silencers for motor vehicles |
| CN101920433A (en) * | 2010-05-12 | 2010-12-22 | 蒋爱臣 | Method for processing core component of energy-saving muffler of internal combustion engine |
-
2012
- 2012-07-02 CN CN201210223171.1A patent/CN102756239B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3811251A (en) * | 1971-08-25 | 1974-05-21 | S Gibel | Classifying muffler |
| CN2081888U (en) * | 1991-01-29 | 1991-07-31 | 赵水石 | Muffler for automobile motor |
| CN201284899Y (en) * | 2008-08-09 | 2009-08-05 | 高利 | Silencer for blast furnace gas pipe |
| DE102008060023A1 (en) * | 2008-12-02 | 2010-06-10 | Heinrich Gillet Gmbh | Method for producing silencers for motor vehicles |
| CN101920433A (en) * | 2010-05-12 | 2010-12-22 | 蒋爱臣 | Method for processing core component of energy-saving muffler of internal combustion engine |
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Denomination of invention: A kind of manufacturing method of vehicle air conditioner muffler Effective date of registration: 20220829 Granted publication date: 20150708 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG FANGHONG AIR CONDITIONING EQUIPMENT Co.,Ltd. Registration number: Y2022330001929 |