CN104985409A - Oil cylinder piston processing technology - Google Patents
Oil cylinder piston processing technology Download PDFInfo
- Publication number
- CN104985409A CN104985409A CN201510247876.0A CN201510247876A CN104985409A CN 104985409 A CN104985409 A CN 104985409A CN 201510247876 A CN201510247876 A CN 201510247876A CN 104985409 A CN104985409 A CN 104985409A
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- CN
- China
- Prior art keywords
- oil cylinder
- centre bore
- cylinder piston
- finish turning
- clamping
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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
- B23P15/10—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J1/00—Pistons; Trunk pistons; Plungers
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The invention relates to an oil cylinder piston processing technology. Oil cylinder pistons are made in pair, and the processing steps sequentially comprise a blanking process, a rough turning process, a half finished turning process, a primary finish turning process, initial inspection, a sawing process, a secondary finish turning process, a pilot hole drilling process and final inspection. During the rough turning process, a 1mm of allowance is left for a central hole, a 0.8mm of allowance is left for a groove, a 1.5mm of allowance is left for the fixed length of the excircle, and a 1mm of allowance is left for the fixed length of the end face. The oil cylinder piston processing technology is advantaged in that the oil cylinder pistons are made in pair, and the pair of oil cylinder pistons is sawed-off to form two pistons, and the piston processing efficiency is improved.
Description
Technical field
The present invention relates to a kind of oil cylinder piston, particularly a kind of oil cylinder piston processing technology.
Background technology
Hydraulic energy is changed into mechanical energy, does the hydraulic actuator of straight reciprocating motion (or oscillating motion) by hydraulic cylinder.Its structure is simple, reliable operation.When realizing moving back and forth with it, can deceleration device be removed from, and there is no drive gap, stable movement, therefore be used widely in the hydraulic system of various machinery.The pressure reduction on hydraulic cylinder power output and piston effective area and both sides thereof is directly proportional; Hydraulic cylinder is made up of cylinder barrel and cylinder cap, piston and piston rod, sealing device, buffer unit and pumping equipment substantially.
As shown in Figure 1 to Figure 3, existing a kind of oil cylinder piston processing technology piston rod, comprise cylinder body 1, front end fairlead 2, rear end end cap 3, piston 4 and piston rod 5, described piston 4 ringwise, center is that a confession piston rod end is stretched into and the centre bore fixed, this centre bore is T-shaped, is made up of front end manhole 6 and rear end screwed hole 7; The excircle of described piston has the groove 8 for installing sealing ring, this groove 8 is T-shaped; The rear end end face of described piston has a pair pilot hole 9.
At present when processing above-mentioned piston, processing step is followed successively by blanking, rough turn, finish turning, inspection, brill pilot hole and inspection, can only process a piston, and piston precision is low at every turn, reduces the quality of piston and the working (machining) efficiency of piston.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of oil cylinder piston processing technology improving Piston Machining efficiency and piston quality.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of oil cylinder piston processing technology, its innovative point is: described oil cylinder piston makes in pairs, and procedure of processing is followed successively by blanking, rough turn, half finish turning, finish turning, Pre-testing, sawed-off, secondary finish turning, bores pilot hole and inspection eventually.
Further, the concrete steps of described oil cylinder piston processing are as follows:
(1) blanking: select circular bar, carry out shearing blanking according to required size on sawing machine, the length of cutting length bar needed for two pistons;
(2) rough turn: face work fixed length on engine lathe planar end surface, rough turn cylindrical; Then reverse end for end clamping, rough turn cylindrical, drill centers and to centre bore sharp edge abate and remove burr;
(3) half finish turnings: at numerically controlled lathe half fine turning outer circle, half finish turning groove, boring centre bore chamfering and removal burr; Then clamping, planar end surface fixed length, half fine turning outer circle, half finish turning groove, boring centre bore chamfering and removal burr is reversed end for end;
(4) finish turnings: in numerically controlled lathe clamping, planar end surface, fine turning outer circle, finish turning groove, emery cloth polishing, boring centre bore, cutting thread, chamfering deburring; Then clamping, planar end surface fixed length, fine turning outer circle, finish turning groove, emery cloth polishing, boring centre bore, cutting thread, chamfering deburring is reversed end for end;
(5) Pre-testing: groove, centre bore, cylindrical and face size on inspection piston;
(6) sawed-off: clamping on sawing machine is also sawed-off, cut into two piston blanks;
(7) secondary finish turning: at numerically controlled lathe clamping, planar end surface fixed length, sharp edge abate remove burr;
(8) pilot hole is bored: on drilling machine, bore pilot hole, sharp edge chamfering remove burr;
(9) inspection eventually: whether inspection piston size meets the demands.
Further, time rough turn in described step (2), centre bore and groove stay the surplus of 1mm and 0.8mm respectively.
Further, time rough turn in described step (2), cylindrical and end face fixed length stay the surplus of 1.5mm and 1mm respectively.
The invention has the advantages that:
(1) oil cylinder piston processing technology of the present invention, piston makes in pairs, and be then divided into two pistons by sawed-off, the working (machining) efficiency of piston improves 65%;
(2) oil cylinder piston processing technology of the present invention, be followed successively by blanking, rough turn, half finish turning, finish turning, Pre-testing, sawed-off, secondary finish turning, bore pilot hole and inspection eventually, machining accuracy is high, improves the quality of piston;
(3) oil cylinder piston processing technology of the present invention, when rough turn, retain surplus, centre bore and groove stay the surplus of 1mm and 0.8mm respectively, and cylindrical and end face fixed length stay the surplus of 1.5mm and 1mm respectively, thus improve subsequent turning precision.
Accompanying drawing explanation
Fig. 1 is the structural representation of existing oil cylinder.
Fig. 2 is the structural representation of existing oil cylinder piston.
Fig. 3 is the sectional view of existing oil cylinder piston.
Detailed description of the invention
Embodiment 1
The invention discloses a kind of oil cylinder piston processing technology, oil cylinder piston makes in pairs, and procedure of processing is followed successively by blanking, rough turn, half finish turning, finish turning, Pre-testing, sawed-off, secondary finish turning, bores pilot hole and inspection eventually.
The concrete steps of above-mentioned oil cylinder piston processing are as follows:
The first step, blanking: select circular bar φ 95mm, sawing machine carries out shearing blanking, and cutting length is 102mm;
Second step, rough turn: face work fixed length on engine lathe planar end surface, rough turn cylindrical φ 90.5mm; Then the cylindrical of clamping φ 90.5mm, rough turn cylindrical φ 90.5mm, drill centers φ 20mm to centre bore sharp edge abate with remove burr is reversed end for end;
3rd step, half finish turning: be benchmark clamping with φ 90.5, at numerically controlled lathe half fine turning outer circle φ 89.8
+ 0.1mm, half finish turning groove φ 84.95
+ 0.1mm and φ 70.8
+ 0.1mm, boring centre bore φ 21.5
-0.1mm and φ 27
-0.1mm chamfering and removal burr; Then reverse end for end with φ 89.8 as benchmark clamping, planar end surface fixed length 98.4, half fine turning outer circle φ 89.8
+ 0.1mm, half finish turning groove φ 84.95
+ 0.1mm and φ 70.8
+ 0.1mm, boring centre bore φ 21.5
-0.1mm and φ 27
-0.1mm chamfering and removal burr;
4th step, a finish turning: with φ 89.8mm for benchmark clamping, planar end surface, fine turning outer circle φ 89 on numerically controlled lathe
-0.2mm, finish turning groove φ 84.15
-0.07mm and φ 70
-0.07mm, emery cloth polishing, boring centre bore φ 28
+ 0.053+ 0.02 mm and φ 22.5 mm, cutting thread M24*1.5-6Hmm, chamfering deburring; Then reverse end for end with φ 89 mm be benchmark clamping, planar end surface fixed length 98mm, fine turning outer circle φ 89
-0.2mm, finish turning groove φ 84.15
-0.07mm and φ 70
-0.07mm, emery cloth polishing, boring centre bore φ 28
+ 0.053+ 0.02 mm and φ 22.5 mm, cutting thread M24*1.5-6Hmm, chamfering deburring;
5th step, Pre-testing: groove, centre bore, cylindrical and face size on inspection piston;
6th step, sawed-off: with φ 89mm for benchmark clamping, clamping on sawing machine is also sawed-off, cuts into two piston blanks;
7th step, secondary finish turning: with φ 89mm for benchmark clamping, at numerically controlled lathe clamping, planar end surface fixed length 45 ± 0.1mm, sharp edge abate remove burr;
8th step, bores pilot hole: on drilling machine, bore pilot hole φ 6*6mm, sharp edge chamfering remove burr;
9th step, eventually inspection: whether inspection piston size meets the demands.
Embodiment 2
The present embodiment, on the basis of embodiment 1, changes step rough turn in second step, is specially face work fixed length on engine lathe and planar end surface, rough turn cylindrical φ 90.3mm; Then the cylindrical of clamping φ 90.3mm, rough turn cylindrical φ 90.3mm, drill centers φ 20.5mm to centre bore sharp edge abate with remove burr is reversed end for end.
Embodiment 3
The present embodiment, on the basis of embodiment 1, changes step rough turn in second step, is specially face work fixed length on engine lathe and planar end surface, rough turn cylindrical φ 90.0 mm; Then the cylindrical of clamping φ 90.0mm, rough turn cylindrical φ 90.0mm, drill centers φ 21 mm to centre bore sharp edge abate with remove burr is reversed end for end.
More than show and describe general principle of the present invention and principal character.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (4)
1. an oil cylinder piston processing technology, is characterized in that: described oil cylinder piston makes in pairs, and procedure of processing is followed successively by blanking, rough turn, half finish turning, finish turning, Pre-testing, sawed-off, secondary finish turning, bores pilot hole and inspection eventually.
2. oil cylinder piston processing technology according to claim 1, is characterized in that: the concrete steps of described oil cylinder piston processing are as follows:
(1) blanking: select circular bar, carry out shearing blanking according to required size on sawing machine, the length of cutting length bar needed for two pistons;
(2) rough turn: face work fixed length on engine lathe planar end surface, rough turn cylindrical; Then reverse end for end clamping, rough turn cylindrical, drill centers and to centre bore sharp edge abate and remove burr;
(3) half finish turnings: at numerically controlled lathe half fine turning outer circle, half finish turning groove, boring centre bore chamfering and removal burr; Then clamping, planar end surface fixed length, half fine turning outer circle, half finish turning groove, boring centre bore chamfering and removal burr is reversed end for end;
(4) finish turnings: in numerically controlled lathe clamping, planar end surface, fine turning outer circle, finish turning groove, emery cloth polishing, boring centre bore, cutting thread, chamfering deburring; Then clamping, planar end surface fixed length, fine turning outer circle, finish turning groove, emery cloth polishing, boring centre bore, cutting thread, chamfering deburring is reversed end for end;
(5) Pre-testing: groove, centre bore, cylindrical and face size on inspection piston;
(6) sawed-off: clamping on sawing machine is also sawed-off, cut into two piston blanks;
(7) secondary finish turning: at numerically controlled lathe clamping, planar end surface fixed length, sharp edge abate remove burr;
(8) pilot hole is bored: on drilling machine, bore pilot hole, sharp edge chamfering remove burr;
(9) inspection eventually: whether inspection piston size meets the demands.
3. oil cylinder piston processing technology according to claim 2, is characterized in that: time rough turn in described step (2), centre bore and groove stay the surplus of 1mm and 0.8mm respectively.
4. oil cylinder piston processing technology according to claim 2, is characterized in that: time rough turn in described step (2), and cylindrical and end face fixed length stay the surplus of 1.5mm and 1mm respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247876.0A CN104985409A (en) | 2015-05-15 | 2015-05-15 | Oil cylinder piston processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510247876.0A CN104985409A (en) | 2015-05-15 | 2015-05-15 | Oil cylinder piston processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104985409A true CN104985409A (en) | 2015-10-21 |
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ID=54297364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510247876.0A Pending CN104985409A (en) | 2015-05-15 | 2015-05-15 | Oil cylinder piston processing technology |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138925A (en) * | 2017-07-11 | 2017-09-08 | 苏州市万雄机械制造有限公司 | The processing method of door closer piston |
| CN107825087A (en) * | 2017-12-12 | 2018-03-23 | 盛瑞传动股份有限公司 | A kind of piston pin roughing technique |
| CN108044325A (en) * | 2017-12-25 | 2018-05-18 | 芜湖锐进医疗设备有限公司 | Hexagonal axis manufacturing process in a kind of medical instrument |
| CN108296727A (en) * | 2018-04-27 | 2018-07-20 | 齐齐哈尔建华机械有限公司 | Eight wing aluminium section bars of one kind going fin method |
| CN112338460A (en) * | 2020-10-29 | 2021-02-09 | 郑州煤矿机械集团股份有限公司 | Machining method for integral piston rod of non-support jack |
| CN113909807A (en) * | 2021-09-22 | 2022-01-11 | 王志君 | Production process of annular hydraulic cylinder for jacking bridge and building |
-
2015
- 2015-05-15 CN CN201510247876.0A patent/CN104985409A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138925A (en) * | 2017-07-11 | 2017-09-08 | 苏州市万雄机械制造有限公司 | The processing method of door closer piston |
| CN107825087A (en) * | 2017-12-12 | 2018-03-23 | 盛瑞传动股份有限公司 | A kind of piston pin roughing technique |
| CN108044325A (en) * | 2017-12-25 | 2018-05-18 | 芜湖锐进医疗设备有限公司 | Hexagonal axis manufacturing process in a kind of medical instrument |
| CN108296727A (en) * | 2018-04-27 | 2018-07-20 | 齐齐哈尔建华机械有限公司 | Eight wing aluminium section bars of one kind going fin method |
| CN112338460A (en) * | 2020-10-29 | 2021-02-09 | 郑州煤矿机械集团股份有限公司 | Machining method for integral piston rod of non-support jack |
| CN112338460B (en) * | 2020-10-29 | 2023-08-04 | 郑州煤矿机械集团股份有限公司 | Processing method of integral piston rod of non-support jack |
| CN113909807A (en) * | 2021-09-22 | 2022-01-11 | 王志君 | Production process of annular hydraulic cylinder for jacking bridge and building |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151021 |
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| RJ01 | Rejection of invention patent application after publication |