CN107175469A - A kind of hydraulic cylinder body processing technology - Google Patents
A kind of hydraulic cylinder body processing technology Download PDFInfo
- Publication number
- CN107175469A CN107175469A CN201710395000.XA CN201710395000A CN107175469A CN 107175469 A CN107175469 A CN 107175469A CN 201710395000 A CN201710395000 A CN 201710395000A CN 107175469 A CN107175469 A CN 107175469A
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- China
- Prior art keywords
- steel pipe
- seamless steel
- hydraulic cylinder
- hole
- carried out
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1428—Cylinders
Abstract
The invention discloses a kind of hydraulic cylinder body processing technology, this method comprises the following steps：A：From material of the seamless steel pipe as hydraulic cylinder；B：Sawing machine carries out cutting stock to seamless steel pipe；C：Quenched and Carburization Treatment, the quenched hardness with inspection seamless steel pipe after the completion of carburizing are carried out to seamless steel pipe；D：The cylindrical of lathe car seamless steel pipe, technique screw thread, end face and chamfering；E：Heavy boring is carried out to seamless steel pipe first, half right boring hole is carried out afterwards, right boring hole then is carried out to seamless steel pipe again, finally seamless steel pipe finish reamed；F：The hole obtained after boring is pushed away to deep hole with milled head to roll；G：Car removes technique screw thread, turning step；H：In-car taper hole and face work；I：Drilling and tapping；J：Examine the dimensional accuracy and surface roughness of hydraulic cylinder；Total, the present invention has the advantages that reliable in quality, service life length, wearability are good.
Description
Technical field
The present invention relates to machining technology field, and in particular to a kind of hydraulic cylinder body processing technology.
Background technology
Hydraulic cylinder is that hydraulic energy is changed into mechanical energy, straight reciprocating motion is done（Or oscillating motion）Hydraulic pressure perform member
Part.Realized with it during reciprocating motion, can remove deceleration device from, and without drive gap, stable movement, therefore in various machines
It is used widely in the hydraulic system of tool.Its is simple in construction, is more easily manufactured compared with other complex parts, is adapted to
In production in enormous quantities, production cost is relatively low, wide using scope.But, current processing technology easily produces hydraulic cylinder matter
Not high, quick abrasion is measured, therefore the short situation of service life, is effectively to solve the above problems, it is necessary to which a kind of hydraulic cylinder body is processed
Technique.
The content of the invention
It is a primary object of the present invention to provide a kind of reliable in quality, service life length, the hydraulic cylinder for improving wearability
Body processing technology.
To achieve the above object, the present invention provides a kind of hydraulic cylinder body processing technology, and this method comprises the following steps：
A：From material of the seamless steel pipe as the hydraulic cylinder；
B：Sawing machine carries out cutting stock to the seamless steel pipe；
C：Quenched and Carburization Treatment, the quenched hardness with inspection seamless steel pipe after the completion of carburizing are carried out to the seamless steel pipe；
D：The cylindrical of seamless steel pipe described in lathe car, technique screw thread, end face and chamfering；
E：Heavy boring is carried out to the seamless steel pipe first, half right boring hole is carried out afterwards, essence then is carried out to the seamless steel pipe again
Bore hole, is finally finish reamed to the seamless steel pipe；
F：The hole obtained after boring is pushed away with milled head to the deep hole to roll；
G：Car removes technique screw thread, turning step；
H：In-car taper hole and face work；
I：Drilling and tapping；
J：Examine the dimensional accuracy and surface roughness of the hydraulic cylinder.
It is preferred that, the seamless steel pipe is 45# seamless steel pipes.
It is preferred that, the hardness that the quenched rear seamless steel pipe reaches is HRC55 ~ 59.
It is preferred that, tool cutting edge angle is used in the heavy boring, the processing of half right boring for 75 ° of hard alloy boring cutter.
It is preferred that, the rolling times is twice.
It is preferred that, the surface roughness that the hole rolling reaches is more than or equal to Ra0.2, less than or equal to Ra1.6.
The beneficial effects of the present invention are：The present invention carries out quenched and Carburization Treatment to seamless steel pipe, makes it with good
While the comprehensive mechanical property got well, and it is improved with wearability.Present invention process is concentrated, management science, using this hair
The bright hydraulic cylinder processed, perpendicularity between its endoporus cylindricity, the linearity of interior axially bored line, interior axially bored line and both ends of the surface,
The interior axially bored line axiality cylindrical to two ends support and the surface roughness in each portion of hydraulic cylinder can reach higher requirement, its
Endoporus is bright and clean without longitudinal indentation, and reliable in quality, service life is long.
Brief description of the drawings
Fig. 1 is the specific embodiment drawing schematic diagram of the present invention.
Embodiment
The embodiment of the present invention is described further with reference to embodiment.
A kind of hydraulic cylinder body processing technology, this method comprises the following steps：
A：From material of the seamless steel pipe as the hydraulic cylinder；
B：Sawing machine carries out cutting stock to the seamless steel pipe；
C：Quenched and Carburization Treatment, the quenched hardness with inspection seamless steel pipe after the completion of carburizing are carried out to the seamless steel pipe；
D：The cylindrical of seamless steel pipe described in lathe car, technique screw thread, end face and chamfering；
E：Heavy boring is carried out to the seamless steel pipe first, half right boring hole is carried out afterwards, essence then is carried out to the seamless steel pipe again
Bore hole, is finally finish reamed to the seamless steel pipe；
F：The hole obtained after boring is pushed away with milled head to the deep hole to roll；
G：Car removes technique screw thread, turning step；
H：In-car taper hole and face work；
I：Drilling and tapping；
J：Examine the dimensional accuracy and surface roughness of the hydraulic cylinder.
The seamless steel pipe is 45# seamless steel pipes, and 45# is carbon quenched and tempered steel in high intensity, with certain plasticity and toughness,
Higher intensity, cutting ability is good, has good comprehensive mechanical property after conditioned processing.The quenched rear seamless steel pipe
The hardness reached is HRC55 ~ 59, can bear enough pressure, and tool cutting edge angle is used in the heavy boring, the processing of half right boring
It is in order to reduce radial load during bore hole, to make that cutting speed is fast and cutting depth is big, it is ensured that manage for 75 ° of hard alloy boring cutter
The working angles thought, the rolling times is twice, rolling twice make cylinder inner bore surface roughness reach technical requirements.The
The amount of feeding that secondary rolled is used is low when being rolled than first time so that the rolling times in the unit interval have just increased, rolling
Density increases, so as to improve the surface quality of endoporus.
As shown in figure 1, being the specific embodiment of the present invention：
A kind of hydraulic cylinder body processing technology, this method comprises the following steps：
A：From material of the Φ 168*50 specification 45# seamless steel pipes as the hydraulic cylinder；
B：Sawing machine carries out cutting stock to the seamless steel pipe, and cutting length is 603mm；
C：Quenched and Carburization Treatment is carried out to the seamless steel pipe, its hardness is reached HRC55 ~ 59；
D：Lathe car Φ 168mm to Φ 160mm, car Φ 148mm is cylindrical to arrive Φ 150mm steps, and car Φ 150mm are cylindrical to arrive Φ
158mm, turner skill M150x2mm screw threads, face work and C5 chamferings, process u-turn car Φ 150mm behind one end cylindrical to Φ
152mm, face work and C5 chamferings；
E：Heavy boring is carried out to the seamless steel pipe first, its interior circular hole size is reached Φ 75mm, rotating speed is 140r/ during heavy boring
Min, the amount of feeding is 25mm/min, and back engagement of the cutting edge is 1.5mm, and half right boring hole is carried out afterwards, its interior circular hole size is reached Φ
78mm, rotating speed is 140r/min during heavy boring, and the amount of feeding is 25mm/min, and back engagement of the cutting edge is 0.75mm, then again to described seamless
Steel pipe carries out right boring hole, its interior circular hole size is reached Φ 79.9mm, right boring is carried out in two times, and rotating speed is during first time right boring
35r/min, the amount of feeding is 15mm/min, and cutting depth is 0.25mm, and rotating speed is 35r/min, the amount of feeding during second of right boring
For 7.5mm/min, cutting depth is 0.05mm, and finally the seamless steel pipe is finish reamed, and its inner circle size is reached Φ 80
± 0.02mm, surface roughness Ra value is 2.5 μm, and rotating speed is 300r/min when finish reaming, and the amount of feeding is 0.4mm/r；
F：With circular hole in milled head rolling extremelyMm, surface roughness Ra value is 0.4 μm, using rolling twice, the
The amount of feeding is 14mm/min when once rolling, and 7mm/min is reduced to during second of rolling；
G：Car removes M150x2mm technique screw threads, turning Φ 150h6 to size, turning step Φ 148mm to size；
H：2 ° of in-car taper hole and face work, u-turn, car Φ 150h6 are to size, 2 ° of in-car taper hole and face work；
I：Bore the holes of Φ 12 to run through, bore Φ 18.5 hole, hole depth 30mm, tapping M20x1.5；
J：Examine the dimensional accuracy and surface roughness of the hydraulic cylinder whether consistent with Fig. 1 requirements.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of hydraulic cylinder body processing technology, it is characterised in that：This method comprises the following steps：
A：From material of the seamless steel pipe as the hydraulic cylinder；
B：Sawing machine carries out cutting stock to the seamless steel pipe；
C：Quenched and Carburization Treatment, the quenched hardness with inspection seamless steel pipe after the completion of carburizing are carried out to the seamless steel pipe；
D：The cylindrical of seamless steel pipe described in lathe car, technique screw thread, end face and chamfering；
E：Heavy boring is carried out to the seamless steel pipe first, half right boring hole is carried out afterwards, essence then is carried out to the seamless steel pipe again
Bore hole, is finally finish reamed to the seamless steel pipe；
F：The hole obtained after boring is pushed away with milled head to the deep hole to roll；
G：Car removes technique screw thread, turning step；
H：In-car taper hole and face work；
I：Drilling and tapping；
J：Examine the dimensional accuracy and surface roughness of the hydraulic cylinder.
2. a kind of hydraulic cylinder body processing technology according to claim 1, it is characterised in that：The seamless steel pipe is 45#
Seamless steel pipe.
3. a kind of hydraulic cylinder body processing technology according to claim 1, it is characterised in that：The quenched rear seamless steel pipe
The hardness reached is HRC55 ~ 59.
4. a kind of hydraulic cylinder body processing technology according to claim 1, it is characterised in that：The heavy boring, half right boring
Tool cutting edge angle is used in processing for 75 ° of hard alloy boring cutter.
5. a kind of hydraulic cylinder body processing technology according to claim 1, it is characterised in that：The rolling times are 2 times.
6. a kind of hydraulic cylinder body processing technology according to claim 1, it is characterised in that：The table that the hole rolling reaches
Surface roughness is more than or equal to Ra0.2, less than or equal to Ra1.6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395000.XA CN107175469A (en) | 2017-05-30 | 2017-05-30 | A kind of hydraulic cylinder body processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395000.XA CN107175469A (en) | 2017-05-30 | 2017-05-30 | A kind of hydraulic cylinder body processing technology |
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| CN107175469A true CN107175469A (en) | 2017-09-19 |
Family
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| CN201710395000.XA Pending CN107175469A (en) | 2017-05-30 | 2017-05-30 | A kind of hydraulic cylinder body processing technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128705A (en) * | 2018-09-10 | 2019-01-04 | 湖北智丰数控机械有限公司 | The inside and outside one-time formed processing method of chamfering that drills of aluminum pipe brush pot |
| CN109590677A (en) * | 2018-11-09 | 2019-04-09 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of processing method of profound cylinder sealing inner hole |
| CN111015107A (en) * | 2019-12-18 | 2020-04-17 | 内蒙古第一机械集团股份有限公司 | Hydraulic cylinder body and cylinder sleeve boring and rolling combined machining method |
| CN112475785A (en) * | 2020-10-21 | 2021-03-12 | 湖北冶鑫汽车零部件有限公司 | Valve sleeve machining process |
| CN113118706A (en) * | 2020-01-14 | 2021-07-16 | 宁波市祥运气动工具有限公司 | Machining method of air shovel cylinder body |
| CN114289998A (en) * | 2021-12-17 | 2022-04-08 | 绍兴力欣液压件有限公司 | Preparation process of high-strength oil cylinder |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109128705A (en) * | 2018-09-10 | 2019-01-04 | 湖北智丰数控机械有限公司 | The inside and outside one-time formed processing method of chamfering that drills of aluminum pipe brush pot |
| CN109128705B (en) * | 2018-09-10 | 2019-07-26 | 湖北智丰数控机械有限公司 | The inside and outside one-time formed processing method of chamfering that drills of aluminum pipe brush pot |
| CN109590677A (en) * | 2018-11-09 | 2019-04-09 | 中国航空工业集团公司西安飞行自动控制研究所 | A kind of processing method of profound cylinder sealing inner hole |
| CN111015107A (en) * | 2019-12-18 | 2020-04-17 | 内蒙古第一机械集团股份有限公司 | Hydraulic cylinder body and cylinder sleeve boring and rolling combined machining method |
| CN113118706A (en) * | 2020-01-14 | 2021-07-16 | 宁波市祥运气动工具有限公司 | Machining method of air shovel cylinder body |
| CN113118706B (en) * | 2020-01-14 | 2022-04-22 | 宁波市祥运气动工具有限公司 | Machining method of air shovel cylinder body |
| CN112475785A (en) * | 2020-10-21 | 2021-03-12 | 湖北冶鑫汽车零部件有限公司 | Valve sleeve machining process |
| CN114289998A (en) * | 2021-12-17 | 2022-04-08 | 绍兴力欣液压件有限公司 | Preparation process of high-strength oil cylinder |
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Application publication date: 20170919 |
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