CN102756240A - Method for manufacturing single-cavity resonance type silencers for automotive air conditioners - Google Patents
Method for manufacturing single-cavity resonance type silencers for automotive air conditioners Download PDFInfo
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- CN102756240A CN102756240A CN2012102232589A CN201210223258A CN102756240A CN 102756240 A CN102756240 A CN 102756240A CN 2012102232589 A CN2012102232589 A CN 2012102232589A CN 201210223258 A CN201210223258 A CN 201210223258A CN 102756240 A CN102756240 A CN 102756240A
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Abstract
The invention discloses a method for manufacturing single-cavity resonance type silencers for automotive air conditioners, which comprises the following steps: 1) material preparing; 2) blunting; 3) grinding; 4) U-shaped blank extrusion; 5) U-shaped blank end-flattening; 6) necking processing; 7) workpiece machining; 8) burr finishing; 9) cleaning and drying; and 10) quality inspection, packaging 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: a silencer product is good in appearance mirror image, and the surfaces of workpieces can not be seriously damaged through squeezing and scratching, so repair is not needed; a silencer product is strong in specification and shape controllability and good in physical and chemical properties; 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 and safe and reliable in operation.
Description
Technical field
The invention belongs to automobile manufacturing field, relate in particular to a kind of single-cavity resonance formula car air-conditioner muffler manufacturing approach.
Background technology
After the manufacturing approach of existing single-cavity resonance formula car air-conditioner muffler mainly adopts and waters mold base hinge sky; Mouth end vertical pit spreading method (adding the aperture size guard column in the cavity) formed product pipe end size is shaped through the flat mouthful of finishing of reaming, afterwards except that product height (or length) controllable size; All the other process design considerations are all uncontrollable; The required clamping high strength of spreading method clamping work pieces causes surface of the work seriously to weigh wounded, scratch, and can't repair; Face is dull, almost is unified flat square, can't satisfy the appearance design requirement of product; Throughput rate low (average 1PCS/100min, day work team's output≤300pcs/8h), production cost high [unit cost waste of raw materials rate>=800% (water the big volume hinge of mold base empty become inner cavity chamber)]; And percent defective high (process PPM>=15000), serious waste of resources.
Summary of the invention
The purpose of this invention is to provide a kind of single-cavity resonance formula car air-conditioner muffler manufacturing approach, adopt bar spare cold-extrusion shaping U pattern embryo,, overcome the above-mentioned deficiency that present prior art exists through stock spare pipe end shrink mouth formed product size.
The objective of the invention is to realize through following technical scheme:
A kind of single-cavity resonance formula car air-conditioner muffler manufacturing approach may further comprise the steps:
1) gets the raw materials ready: raw material are cut processing through the aluminium automatic stock cutter;
2) abate: the raw-material two ends after will cutting are carried out abate through precision meter lathe and are handled;
3) grind: the workpiece behind the abate is carried out mixing talcum powder after the milled processed through horizontal parallel oscillating mill, and said process of lapping is combined with abrasive medium, makes the Forming Workpiece surface smoothing not have rib; The said talcum powder process of mixing is combined with the talcum powder medium that quantizes through ratio, makes the level and smooth demoulding of post forming workpiece;
4) the U embryo extrudes: the workpiece after will grinding carries out cold extrusion through descending hydraulic forging press, makes the profile of workpiece be U type back cover opening mold base structure, and said cold extrusion process cooperates mold for extruding and forming;
5) the U embryo is flat mouthful: the workpiece openings end behind the cold-extrusion shaping is carried out abate through precision meter lathe handle;
6) reducing is handled: the U type back cover opening mold base behind the abate is carried out reducing through the automatic hydraulic necking machine handle;
7) the workpiece machine adds: the workpiece after reducing is handled passes through Digit Control Machine Tool respectively to U embryo end and necking end processing and manufacturing;
8) dressing burr: adopt auxiliary cutlery and hook to remove the residual cutting overlap of unnecessary burr, acute angle and inner chamber that above-mentioned machine adds product interface (aperture) edge, and polished in the repair place with fine grinding sand blending oil;
9) cleaning, drying: the product behind the dressing burr is removed greasy dirt, impurity through supersonic wave cleaning machine, clean the back and dry processing through baking oven; And
10) quality inspection, packing warehouse-in: the product behind the above-mentioned cleaning, drying is carried out final inspection, and the packing of product warehouse-in to being up to the standards.
Preferably, in step 3), said abrasive medium is the mixture of quartz, Tao Zhu and steel ball.
Preferably, in step 9), said supersonic wave cleaning machine ultrasonic waves transmitted is provided with the device security frequency: 28 ~ 32 hertz; It is 80 ℃ ~ 90 ℃ the groove of heating that said supersonic wave cleaning machine is provided with operating temperature, is provided with the light-alloy grease removal cleaning fluid of the mixed allotment of pH 2 ~ 3 in the said groove of heating.
Preferably, in step 10), packaging material are corrugation five ply paper bag or environmental protection package thing.
Beneficial effect of the present invention is: the appearance mirror picture is good, can not cause surface of the work seriously to weigh wounded, scratch, and need not to repair; Good physical and chemical properties, the product specification shape can be handling extremely strong; Throughput rate is high, and production cost is low, and yield rate is high; And automaticity is high, safe and reliable to operation.
The specific embodiment
The embodiment of the invention 1 described a kind of single-cavity resonance formula car air-conditioner muffler manufacturing approach is specially U pattern embryo necking forming method, may further comprise the steps:
1) gets the raw materials ready: raw material are cut processing through the aluminium automatic stock cutter;
2) abate: the raw-material two ends after will cutting are carried out abate through precision meter lathe and are handled;
3) grind: the workpiece behind the abate is carried out mixing talcum powder after the milled processed through horizontal parallel oscillating mill, and said process of lapping is combined with the abrasive medium that quartz, Tao Zhu and steel ball mix, and makes the Forming Workpiece surface smoothing not have rib; The said talcum powder process of mixing is combined with the talcum powder medium that quantizes through ratio, makes the level and smooth demoulding of post forming workpiece;
4) the U embryo extrudes: the workpiece after will grinding carries out cold extrusion through descending hydraulic forging press, makes the profile of workpiece be U type back cover opening mold base structure, and said cold extrusion process cooperates mold for extruding and forming;
5) the U embryo is flat mouthful: the workpiece openings end behind the cold-extrusion shaping is carried out abate through precision meter lathe handle;
6) reducing is handled: the U type back cover opening mold base behind the abate is carried out reducing through the automatic hydraulic necking machine handle;
7) the workpiece machine adds: the workpiece after reducing is handled passes through Digit Control Machine Tool respectively to U embryo end and necking end processing and manufacturing;
8) dressing burr: adopt auxiliary cutlery and hook to remove the residual cutting overlap of unnecessary burr, acute angle and inner chamber that above-mentioned machine adds product interface (aperture) edge, and polished in the repair place with fine grinding sand blending oil;
9) cleaning, drying: the product behind the dressing burr is removed greasy dirt, impurity through supersonic wave cleaning machine, clean the back and dry processing through baking oven; The supersonic wave cleaning machine ultrasonic waves transmitted is provided with the device security frequency: 28 ~ 32 hertz; It is 80 ℃ ~ 90 ℃ the groove of heating that supersonic wave cleaning machine is provided with operating temperature, is provided with the cleaning fluid of PH 2 ~ 3 in the groove of heating; And
10) quality inspection, packing warehouse-in: the product behind the above-mentioned cleaning, drying is carried out final inspection, and the packing of product warehouse-in to being up to the standards, packaging material are corrugation five ply paper bag or environmental protection package thing.
The embodiment of the invention 2 described a kind of single-cavity resonance formula car air-conditioner muffler manufacturing approaches are specially pipe pipe end shrink mouth manufacturing process, may further comprise the steps:
1) gets the raw materials ready: raw material are cut processing through the aluminium automatic stock cutter;
2) abate: the raw-material two ends after will cutting are carried out abate through precision meter lathe and are handled;
3) reducing is handled: reducing is carried out through the automatic hydraulic necking machine in the workpiece two ends behind the abate handle;
4) the workpiece machine adds: the workpiece after reducing is handled passes through Digit Control Machine Tool to its processing and manufacturing;
5) dressing burr: adopt auxiliary cutlery and hook to remove the residual cutting overlap of unnecessary burr, acute angle and inner chamber that above-mentioned machine adds product interface (aperture) edge, and polished in the repair place with fine grinding sand blending oil;
6) cleaning, drying: the product behind the dressing burr is removed greasy dirt, impurity through supersonic wave cleaning machine, clean the back and dry processing through baking oven, the supersonic wave cleaning machine ultrasonic waves transmitted is provided with the device security frequency: 28 ~ 32 hertz; It is 80 ℃ ~ 90 ℃ the groove of heating that supersonic wave cleaning machine is provided with operating temperature, is provided with the cleaning fluid of PH 2 ~ 3 in the groove of heating; And
7) quality inspection, packing warehouse-in: the product behind the above-mentioned cleaning, drying is carried out final inspection, and the packing of product warehouse-in to being up to the standards, packaging material are corrugation five ply paper bag or environmental protection package thing.
The inventive method adopts bar spare cold-extrusion shaping U pattern embryo, is shaped through stock spare pipe end shrink mouth, and the process design considerations can accurately be controlled; The appearance mirror picture good (≤0.8SSSS), reducing die and pipe port run parallel, workpiece need not the high strength clamping and clamps, and therefore can not cause workpiece seriously to weigh wounded, scratch, and need not to repair; Product specification shape can be handling extremely strong (only needing the design of an adjustment reducing mould), good physical and chemical properties (cold extrusion can not change the physicochemical property of metal material), its process all meets the designing requirement of product process; The throughput rate height (average 1PCS/13.5min, day work team's output>=2000pcs/8h), production cost low (unit waste of raw materials rate≤10%), yield rate high (process PPM≤1000); Automaticity is high, safe and reliable to operation.
The present invention is not limited to above-mentioned preferred forms; Anyone can draw other various forms of products under enlightenment of the present invention; No matter but on its shape or structure, do any variation; Every have identical with a application or akin technical scheme, all drops within protection scope of the present invention.
Claims (4)
1. single-cavity resonance formula car air-conditioner muffler manufacturing approach is characterized in that: may further comprise the steps:
1) gets the raw materials ready: raw material are cut processing through the aluminium automatic stock cutter;
2) abate: the raw-material two ends after will cutting are carried out abate through precision meter lathe and are handled;
3) grind: the workpiece behind the abate is carried out mixing talcum powder after the milled processed through horizontal parallel oscillating mill, and said process of lapping is combined with abrasive medium, makes the Forming Workpiece surface smoothing not have rib; The said talcum powder process of mixing is combined with the talcum powder medium that quantizes through ratio, makes the level and smooth demoulding of post forming workpiece;
4) the U embryo extrudes: the workpiece after will grinding carries out cold extrusion through descending hydraulic forging press, makes the profile of workpiece be U type back cover opening mold base structure, and said cold extrusion process cooperates mold for extruding and forming;
5) the U embryo is flat mouthful: the workpiece openings end behind the cold-extrusion shaping is carried out abate through precision meter lathe handle;
6) reducing is handled: the U type back cover opening mold base behind the abate is carried out reducing through the automatic hydraulic necking machine handle;
7) the workpiece machine adds: the workpiece after reducing is handled passes through Digit Control Machine Tool respectively to U embryo end and necking end processing and manufacturing;
8) dressing burr: adopt auxiliary cutlery and hook to remove the residual cutting overlap of unnecessary burr, acute angle and inner chamber that above-mentioned machine adds the product egress edge, and polished in the repair place with fine grinding sand blending oil;
9) cleaning, drying: the product behind the dressing burr is removed greasy dirt, impurity through supersonic wave cleaning machine, clean the back and dry processing through baking oven; And
10) quality inspection, packing warehouse-in: the product behind the above-mentioned cleaning, drying is carried out final inspection, and the packing of product warehouse-in to being up to the standards.
2. a kind of single-cavity resonance formula car air-conditioner muffler manufacturing approach according to claim 1 is characterized in that: in step 3), said abrasive medium is the mixture of quartz, Tao Zhu and steel ball.
3. a kind of single-cavity resonance formula car air-conditioner muffler manufacturing approach according to claim 1 and 2, it is characterized in that: in step 9), said supersonic wave cleaning machine ultrasonic waves transmitted is provided with the device security frequency: 28 ~ 32 hertz; It is 80 ℃ ~ 90 ℃ the groove of heating that said supersonic wave cleaning machine is provided with operating temperature, is provided with the light-alloy grease removal cleaning fluid of the mixed allotment of pH 2 ~ 3 in the said groove of heating.
4. a kind of single-cavity resonance formula car air-conditioner muffler manufacturing approach according to claim 3, it is characterized in that: in step 10), packaging material are corrugation five ply paper bag or environmental protection package thing.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103071981A (en) * | 2013-01-29 | 2013-05-01 | 浙江方宏空调设备有限公司 | Manufacturing method for tube wall convex pore diameter of metal tube |
| 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 |
| CN103464986A (en) * | 2013-06-26 | 2013-12-25 | 龙泉市日盛汽车零部件有限公司 | Method for manufacturing automobile air conditioner silencer |
| CN104690503A (en) * | 2015-01-28 | 2015-06-10 | 苏州市天星山精密模具有限公司 | Cast iron mould worktable processing method |
| CN113369323A (en) * | 2021-05-26 | 2021-09-10 | 浙江方宏空调设备有限公司 | Semi-solid hot press molding equipment for automobile air conditioner silencer |
| CN115366611A (en) * | 2022-08-24 | 2022-11-22 | 浙江欧特立汽车空调有限公司 | Silencer for automobile air conditioner and production method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
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| CN104690503A (en) * | 2015-01-28 | 2015-06-10 | 苏州市天星山精密模具有限公司 | Cast iron mould worktable processing method |
| CN113369323A (en) * | 2021-05-26 | 2021-09-10 | 浙江方宏空调设备有限公司 | Semi-solid hot press molding equipment for automobile air conditioner silencer |
| CN113369323B (en) * | 2021-05-26 | 2023-08-01 | 浙江方宏空调设备有限公司 | Semi-solid hot-press molding equipment for silencer of automobile air conditioner |
| CN115366611A (en) * | 2022-08-24 | 2022-11-22 | 浙江欧特立汽车空调有限公司 | Silencer for automobile air conditioner and production method thereof |
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Denomination of invention: Manufacturing method of single cavity resonance type vehicle air conditioner muffler Effective date of registration: 20220829 Granted publication date: 20150826 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG FANGHONG AIR CONDITIONING EQUIPMENT Co.,Ltd. Registration number: Y2022330001929 |
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