CN102152068A - Method for manufacturing piston rod - Google Patents
Method for manufacturing piston rod Download PDFInfo
- Publication number
- CN102152068A CN102152068A CN 201110033340 CN201110033340A CN102152068A CN 102152068 A CN102152068 A CN 102152068A CN 201110033340 CN201110033340 CN 201110033340 CN 201110033340 A CN201110033340 A CN 201110033340A CN 102152068 A CN102152068 A CN 102152068A
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- piston rod
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Abstract
The invention discloses a method for manufacturing a piston rod. The method comprises the steps of: grinding an outer circle, smoothing and machining, and polishing before plating. The method for manufacturing the piston rod, disclosed by the invention, can be used for improving the surface hardness and the surface roughness of the piston rod, and enhancing the abrasion resistance, the corrosion resistance and the fatigue strength of a rod body, so that the product quality is greatly improved and the production cost is decreased.
Description
Technical field
The present invention relates to make processing technique field, particularly relate to a kind of manufacture method of piston rod.
Background technology
Along with the continuous development of economic construction, the use of device such as hydraulic cylinder or pneumatic cylinder more and more widely, therefore, the performance quality of forming each parts of hydraulic cylinder or pneumatic cylinder also more and more obtains people's attention
Piston rod is the critical component of device such as above-mentioned hydraulic cylinder, in the prior art, in order to guarantee the crudy of piston rod, generally adopts following procedure of processing:
1, utilizes sawing machine saw raw material down, finish blanking; 2, it is rough turn to utilize lathe to carry out the first step; 3, assembly welding (according to the type of raw-material type with the piston rod of being processed, this step is not essential); 4, heat treatment, the performance of raising piston rod; 5, alignment, the linearity that guarantees piston rod is in 1mm; 6, utilize lathe carry out second the step rough turn; 7, center lapping portals in the processing of the centre at the two ends of piston rod, to make things convenient for the location in the following process process; 8, finish turning, the body of rod position of main machining piston bar; 9, car piston position; 10, milling flat bore hole does not have the relative side in piston position at piston rod, processes the plane earlier, and then at plan-position processing rod head connecting hole; 11, cylindrical grinding improves the fineness of whole piston rod cylindrical; 12, polishing before the plating utilizes emery wheel to polish, for plating is prepared; 13, electroplate last chromium; 14, plating back polishing, polishing once more improves surface smoothness.
The piston rod that processes according to above-mentioned process route, can guarantee normal use, and can reach the mechanical performance index of piston rod, but according to the product of above-mentioned explained hereafter, have some after plating, to produce trickle terrible crackle on its surface, and it is very poor to electroplate adhesive force, this has just influenced the total quality of piston rod processing, when serious, also may cause scrapping of product, thereby make production cost increase.
Therefore, how to improve the manufacturing process of piston rod, thereby improve the crudy of piston rod, the rate of reducing the number of rejects and seconds reduces production costs, and just becomes the present technical issues that need to address of those skilled in the art.
Summary of the invention
The manufacture method that the purpose of this invention is to provide a kind of piston rod, the manufacture method of this piston rod can improve the hardness and the surface roughness of piston rod surface, and strengthened wearability, corrosion resistance and the fatigue resistance of the body of rod, thus improved the quality of product greatly, reduced production cost.
For solving the problems of the technologies described above, the invention provides a kind of manufacture method of piston rod, before cylindrical grinding and plating, also comprise step between the polishing: polishing processing.
Preferably, the device that is adopted in described polishing procedure of processing can metallic surface processing device for milligram.
Preferably, described milligram can be connected with the knife rest of lathe by briquetting by metallic surface processing device.
Preferably, described milligram can comprise cutterhead by metallic surface processing device, and described cutterhead is installed on the body of described milligram energy metallic surface processing device, and described body is installed on described briquetting by shell fragment.
Preferably, described milligram can be provided with the oil-in that is communicated with fuel tank by metallic surface processing device, and the oil scraping plate that contacts with described piston rod, is arranged at the oil box and the oil-out that is opened in described oil box of oil scraping plate end.
Preferably, the main axis jerking of described lathe is less than 0.03mm.
Preferably, the tailstock centre of described lathe beats less than 0.02mm.
Preferably, the circle of described lathe long feed is beated less than 0.03mm.
Preferably, the gap of the traverse feed system of described lathe is less than 0.05mm.
The manufacture method of piston rod provided by the present invention also comprises step: polishing processing between the polishing before cylindrical grinding and plating.The manufacture method of piston rod provided by the present invention on the basis of existing processing method, has increased the polishing procedure of processing, and this method specifically may further comprise the steps utilizes sawing machine saw raw material down, finishes blanking; It is rough turn to utilize lathe to carry out the first step; Assembly welding (according to the type of raw-material type with the piston rod of being processed, this step is not essential); Heat treatment, the performance of raising piston rod; Alignment, the linearity that guarantees piston rod is in 1mm; Utilize lathe carry out second the step rough turn; Center lapping portals in the processing of the centre at the two ends of piston rod, to make things convenient for the location in the following process process; Finish turning, the body of rod position of main machining piston bar; Car piston position; The milling flat bore hole does not have the relative side in piston position at piston rod, processes the plane earlier, and then at plan-position processing rod head connecting hole; Cylindrical grinding improves the fineness of whole piston rod cylindrical; Polishing processing utilizes the polishing processing unit (plant), constantly collides the cylindrical of piston rod in the mode of vibration; Polishing utilizes emery wheel to polish, for plating is prepared before the plating; Electroplate last chromium; The polishing of plating back, polishing once more improves surface smoothness.Adopt the case hardness and the surface roughness of the piston rod of said method manufacturing processing all to be improved, wearability, corrosion resistance and the fatigue resistance of the body of rod have also been strengthened simultaneously, prolong fatigue life, improved the quality of piston rod greatly, reduced production cost.
In a kind of preferred implementation, the manufacture method of piston rod provided by the present invention, the device that is adopted in described polishing procedure of processing can metallic surface processing device for milligram.Milligram can metallic surface processing device be to utilize the cold plasticity characteristics of metal under the normal temperature state, be used for milligram and can carry out grinding, reinforcement and the miniature deformation processing of abrasive-free, make the metal parts surface reach better surface roughness requirement the metal parts surface; Produce compression at piece surface simultaneously, improve microhardness, wearability, corrosion resistance and fatigue strength and the fatigue life of piece surface.
Description of drawings
The general flow chart of the manufacture method of the piston rod that Fig. 1 is provided for a kind of specific embodiment of the present invention;
The schematic flow sheet of the manufacture method of the piston rod that Fig. 2 is provided for a kind of specific embodiment of the present invention;
Fig. 3 is the structural representation of the piston rod of the manufacture method manufacturing of the piston rod that Fig. 2 provided;
Fig. 4 looks schematic diagram for the master of the milligram energy metal surface polishing device processing that a kind of specific embodiment of the present invention is provided;
The schematic side view that Fig. 5 processes for the milligram energy metal surface polishing device that a kind of specific embodiment of the present invention is provided.
The specific embodiment
Core of the present invention provides a kind of manufacture method of piston rod, the manufacture method of this piston rod can improve the hardness and the surface roughness of piston rod surface, and strengthened wearability, corrosion resistance and the fatigue resistance of the body of rod, thus improved the quality of product greatly, reduced production cost.
In order to make those skilled in the art person understand the present invention program better, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to Fig. 1 and Fig. 2, the general flow chart of the manufacture method of the piston rod that Fig. 1 is provided for a kind of specific embodiment of the present invention; The schematic flow sheet of the manufacture method of the piston rod that Fig. 2 is provided for a kind of specific embodiment of the present invention; Fig. 3 is the structural representation of the piston rod of the manufacture method manufacturing of the piston rod that Fig. 2 provided.
In a kind of specific embodiment, as shown in FIG., the manufacture method of piston rod provided by the present invention may further comprise the steps:
Step S1: blanking;
Utilize sawing machine to saw the material of appropriate amount down, finish the blanking operation, promptly from the raw material saw lower beam head 21 and the body of rod 22 from the raw material of machining piston bar.
Step S2: for the first time rough turn;
It is rough turn to utilize lathe that the raw material under cutting are carried out, and the bar head 21 and the body of rod 22 are carried out preliminary processing.
Step S3: assembly welding (according to the type of raw-material type with the piston rod of being processed, this step is not essential);
As shown in Figure 2, be subjected to the influence of piston rod 2 structures, bar head 21 parts have square structure, and the body of rod 22 parts have circular configuration, and in order to save material, above-mentioned two parts take off from having difform raw material respectively, and then welded together.
Step S4: heat treatment;
By heat treated mode, improve properties of materials, improve the performance of piston rod.
Step S5: alignment;
Mainly the mode by straightening realizes, the linearity that guarantees piston rod reaches the requirement for the piston rod linearity in 1mm.
Step S6: it is rough turn to utilize lathe to carry out the second time;
Step S7: center lapping;
Portal in the processing of the centre at the two ends of piston rod, to make things convenient for the location in the following process process.
Step S8: finish turning;
The body of rod 22 parts to piston rod are carried out finish turning, improve the precision of the body of rod 22 parts.
Step S9: car piston position 22;
On piston rod, process structure--the piston position 23 of the part that is connected with piston body, make things convenient for being connected of piston rod and piston body.
Step S 10: the milling flat bore hole;
End at the bar head 21 of piston rod utilizes milling machine to process the plane, and further utilizes boring machine processing rod head connecting hole 24.
Step S11: cylindrical grinding, improve the fineness of whole piston rod cylindrical.
Step S12: polishing processing, utilize the polishing processing unit (plant), constantly collide the cylindrical of piston rod in the mode of vibration;
Step S13: polishing before the plating, utilize emery wheel to polish, for plating is prepared;
Step S14: electroplate last chromium;
Step S15: the polishing of plating back, polishing once more improves surface smoothness.
As can be seen, the manufacture method of piston rod provided by the present invention compared with prior art, has increased the processing of step polishing between the polishing before step cylindrical grinding and step plating, improved the performance of piston rod.
Adopt the case hardness and the surface roughness of the piston rod of said method manufacturing processing all to be improved, wearability, corrosion resistance and the fatigue resistance of the body of rod have also been strengthened simultaneously, prolong fatigue life, improved the quality of piston rod greatly, reduced production cost.
Please refer to Fig. 4 and Fig. 5, Fig. 4 looks schematic diagram for the master of the milligram energy metal surface polishing device processing that a kind of specific embodiment of the present invention is provided; The schematic side view that Fig. 5 processes for the milligram energy metal surface polishing device that a kind of specific embodiment of the present invention is provided.
In a kind of specific embodiment, the manufacture method of piston rod provided by the present invention, the device that is adopted in the polishing procedure of processing can metallic surface processing device for milligram.Milligram can metallic surface processing device be installed on lathe, mutually combines with lathe and realizes polishing processing to piston rod.
Milligram can metallic surface processing device be to utilize the cold plasticity characteristics of metal under the normal temperature state, be used for milligram and can carry out grinding, reinforcement and the miniature deformation processing of abrasive-free, make the metal parts surface reach better surface roughness requirement the metal parts surface; Produce compression at piece surface simultaneously, improve microhardness, wearability, corrosion resistance and fatigue strength and the fatigue life of piece surface.
Particularly, milligram can have multiple model by metallic surface processing device, to satisfy the processing needs of different work pieces; Correspondingly, the milligram energy metallic surface processing device of different model need cooperatively interact with dissimilar lathes and carry out work, simultaneously milligram can metallic surface processing device can also be used in combination with the higher high-precision device of automation such as Digit Control Machine Tool and machining center and integrated level, programmes according to institute and carries out polishing and process.
For guaranteeing the polishing effect, the main axis jerking of lathe should be less than 0.03mm, and beating of the tailstock centre of lathe should be less than 0.02mm, and the circle of lathe long feed is beated should be less than 0.03mm, and the gap of the traverse feed system of lathe should be less than 0.05mm.
For convenience with the combining of lathe, milligram can be connected with the knife rest of lathe by briquetting 34 by a metallic surface processing device.One end and the knife rest of briquetting 34 adapt, and the other end can be connected by metallic surface processing device with milligram.
As shown in FIG., milligram can comprise cutterhead 31 by metallic surface processing device, and cutterhead 31 is installed on milligram body of energy metallic surface processing device by tool bodies, and body is installed on briquetting 34 by shell fragment 33.
In the course of work, piston rod is supported by lathe, and cutterhead 31 is constantly vibration under the effect of the power set of lathe, with the surface collision of piston rod, realizes polishing processing.
Yet, in the course of the work, can produce a large amount of heats between piston rod and the cutterhead 31, in order to reduce the temperature of the two, play certain lubrication simultaneously, milligram can also be provided with the oil-in that is communicated with fuel tank by metallic surface processing device, and the oil scraping plate 36 that contacts with piston rod, is arranged at the oil box 37 and the oil-out 38 that is opened in oil box 37 of oil scraping plate 36 ends.
In the course of work, at first open the fuel tank back door, after voltage is normal, oil inlet pipe is inserted into the oil return pipe place, open pump switch, earlier scavenge oil pump is held full oil, observing in the fuel tank has oil spill to go out, and illustrates that scavenge oil pump holds full oil, and the preparation of indication device finishes, close pump switch, and will pass in and out oil pipe and connect, an end of oil inlet pipe connects the oil-out end of fuel tank, and the other end connects the oil-in that milligram can metallic surface processing device, one end of oil return pipe is connected to the oil-out 38 of oil box 37, the other end is received the oil return opening of fuel tank, and hydraulic oil passes through fuel tank, oil-in acts on piston rod and the cutterhead 31, cooling and lubricated after, under the effect of oil scraping plate 36, flow into oil box 37, and then flow back to fuel tank.
More than piston rod provided by the present invention ground manufacture method is described in detail.Used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (9)
1. the manufacture method of a piston rod is characterized in that, also comprises step between the polishing before cylindrical grinding and plating: polishing processing.
2. the manufacture method of piston rod according to claim 1 is characterized in that, the device that is adopted in described polishing procedure of processing can metallic surface processing device for milligram.
3. the manufacture method of piston rod according to claim 2 is characterized in that, described milligram can be connected with the knife rest of lathe by briquetting by metallic surface processing device.
4. the manufacture method of piston rod according to claim 3, it is characterized in that, described milligram can comprise cutterhead by metallic surface processing device, and described cutterhead is installed on the body of described milligram energy metallic surface processing device, and described body is installed on described briquetting by shell fragment.
5. the manufacture method of piston rod according to claim 4, it is characterized in that, described milligram can be provided with the oil-in that is communicated with fuel tank by metallic surface processing device, and the oil scraping plate that contacts with described piston rod, is arranged at the oil box and the oil-out that is opened in described oil box of oil scraping plate end.
6. according to the manufacture method of each described piston rod of claim 3 to 5, it is characterized in that the main axis jerking of described lathe is less than 0.03mm.
7. the manufacture method of piston rod according to claim 6 is characterized in that, the beating less than 0.02mm of the tailstock centre of described lathe.
8. the manufacture method of piston rod according to claim 7 is characterized in that, the circle of described lathe long feed is beated less than 0.03mm.
9. the manufacture method of piston rod according to claim 8 is characterized in that, the gap of the traverse feed system of described lathe is less than 0.05mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110033340 CN102152068A (en) | 2011-01-30 | 2011-01-30 | Method for manufacturing piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110033340 CN102152068A (en) | 2011-01-30 | 2011-01-30 | Method for manufacturing piston rod |
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| CN102152068A true CN102152068A (en) | 2011-08-17 |
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| CN 201110033340 Pending CN102152068A (en) | 2011-01-30 | 2011-01-30 | Method for manufacturing piston rod |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950424A (en) * | 2011-08-26 | 2013-03-06 | 宝山钢铁股份有限公司 | Preparation method of LD steel cold roll ejector for small-pore stainless seamless pipe |
| CN102979538A (en) * | 2012-12-07 | 2013-03-20 | 北川万德福机电产品研发实验室 | Production method of plunger in individual hydraulic prop or piston rod of fully mechanized mining support upright column |
| CN103833356A (en) * | 2014-03-14 | 2014-06-04 | 邓湘凌 | Method for fabricating zirconium oxide high-pressure cylinder piston rod |
| CN103934736A (en) * | 2013-01-21 | 2014-07-23 | 东洋机电株式会社 | Method For Performing Surface Treatment On Piston Rod Of Hydraulic Cylinder |
| CN104209714A (en) * | 2014-08-20 | 2014-12-17 | 安庆市天润工程机械有限责任公司 | Processing technique for piston rod of steering cylinder |
| CN104400367A (en) * | 2014-10-29 | 2015-03-11 | 苏州市金德誉精密机械有限公司 | Processing technology of starting shaft |
| CN104439969A (en) * | 2014-11-24 | 2015-03-25 | 苏州市福迈精密机械有限公司 | Machining technology of piston rod |
| CN106956074A (en) * | 2017-03-03 | 2017-07-18 | 中国人民解放***箭军工程大学 | Friction stir welding method based on person of outstanding talent gram energy technology |
| CN107498272A (en) * | 2017-10-18 | 2017-12-22 | 博尔德南通汽车零部件有限公司 | Piston rod processing technology |
| CN107570975A (en) * | 2017-10-18 | 2018-01-12 | 博尔德南通汽车零部件有限公司 | A kind of piston rod processing technology |
| CN109604960A (en) * | 2018-12-19 | 2019-04-12 | 内蒙古北方重型汽车股份有限公司 | Quarry tipper wet brake processing method of casing |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950424A (en) * | 2011-08-26 | 2013-03-06 | 宝山钢铁股份有限公司 | Preparation method of LD steel cold roll ejector for small-pore stainless seamless pipe |
| CN102950424B (en) * | 2011-08-26 | 2015-03-11 | 宝钢特钢有限公司 | Preparation method of LD steel cold roll ejector for small-pore stainless seamless pipe |
| CN102979538A (en) * | 2012-12-07 | 2013-03-20 | 北川万德福机电产品研发实验室 | Production method of plunger in individual hydraulic prop or piston rod of fully mechanized mining support upright column |
| CN103934736A (en) * | 2013-01-21 | 2014-07-23 | 东洋机电株式会社 | Method For Performing Surface Treatment On Piston Rod Of Hydraulic Cylinder |
| CN103833356A (en) * | 2014-03-14 | 2014-06-04 | 邓湘凌 | Method for fabricating zirconium oxide high-pressure cylinder piston rod |
| CN104209714A (en) * | 2014-08-20 | 2014-12-17 | 安庆市天润工程机械有限责任公司 | Processing technique for piston rod of steering cylinder |
| CN104400367A (en) * | 2014-10-29 | 2015-03-11 | 苏州市金德誉精密机械有限公司 | Processing technology of starting shaft |
| CN104439969A (en) * | 2014-11-24 | 2015-03-25 | 苏州市福迈精密机械有限公司 | Machining technology of piston rod |
| CN106956074A (en) * | 2017-03-03 | 2017-07-18 | 中国人民解放***箭军工程大学 | Friction stir welding method based on person of outstanding talent gram energy technology |
| CN107498272A (en) * | 2017-10-18 | 2017-12-22 | 博尔德南通汽车零部件有限公司 | Piston rod processing technology |
| CN107570975A (en) * | 2017-10-18 | 2018-01-12 | 博尔德南通汽车零部件有限公司 | A kind of piston rod processing technology |
| CN109604960A (en) * | 2018-12-19 | 2019-04-12 | 内蒙古北方重型汽车股份有限公司 | Quarry tipper wet brake processing method of casing |
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Application publication date: 20110817 |