CN105269250A - Machining process for rod end of hydraulic piston rod - Google Patents
Machining process for rod end of hydraulic piston rod Download PDFInfo
- Publication number
- CN105269250A CN105269250A CN201410344771.2A CN201410344771A CN105269250A CN 105269250 A CN105269250 A CN 105269250A CN 201410344771 A CN201410344771 A CN 201410344771A CN 105269250 A CN105269250 A CN 105269250A
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- CN
- China
- Prior art keywords
- piston pole
- liquid presses
- presses piston
- hydraulic piston
- rod end
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a machining process for the rod end of a hydraulic piston rod. The machining process is characterized by comprising the following steps that (1) the hydraulic piston rod is selected, and dust removal is conducted; (2) the periphery of the rod end of the hydraulic piston rod is cut into an outer connection surface; (3) the outer end of the center of the rod end of the hydraulic piston rod is drilled inwards to form an inner connection hole 2 through a drilling machine, and the machining dimension is tested through a die; (4) slag removal is conducted on the interior of the inner connection hole through a hand drill in cooperation with a grinding head; (5) a drill bit of the drilling machine is replaced, and then the center of the side end of the inner connection hole is drilled to form an inner positioning groove; (6) the outer opening of the inner connection hole is machined into an upper transition surface; (7) the outer opening of the inner connection hole is machined into a lower transition surface; and (8) the outer surface of the rod end of the hydraulic piston rod is subjected to finishing polish through manual grinding equipment, namely a canvas polishing wheel. According to the machining process, the operation is easy and convenient, the production quality of the rod end of the hydraulic piston rod is improved, and the production efficiency is improved; the rejection rate of the rod ends of the hydraulic piston rods is effectively lowered, the production cost is reduced, and volume production is facilitated.
Description
Technical field
The present invention relates to a kind of liquid presses piston pole processing technology, especially relate to a kind of rod end head processing technology of liquid presses piston pole.
Background technology
At present, in the processing of liquid presses piston pole, the rod end head of liquid presses piston pole is vitals processing industry king-rod termination is technological difficulties always, and the interconnecting hole of rod end head and locating dowel will carry out pre-assembled.
The interconnecting hole of rod end head and locating dowel cannot accomplish that zero gap installs additional, and by after soldering, can there is multiple solder joint, weldering spot and weld seam by handle port, and outward appearance is not good; Secondly, require higher for staff's skill proficiency, Welded Pipe id tolerance requires high simultaneously, and assembly difficulty is large, and scrappage is high.When actual withholding, this three place is the position that stress is concentrated, and is easy to cause nut to ftracture when withholding or assemble, and whole liquid presses piston pole assembly is installed defective.
Summary of the invention
The object of this invention is to provide a kind of rod end head processing technology of liquid presses piston pole, solve the rod end head interconnecting hole of above-mentioned liquid presses piston pole and the problem of locating dowel stable connection.
The technical solution adopted for the present invention to solve the technical problems is: a kind of rod end head processing technology of liquid presses piston pole, and it is characterized in that, its step is as follows:
(1) choose liquid presses piston pole, eliminate rust in liquid presses piston pole termination;
(2) use stock-removing machine periphery, liquid presses piston pole termination to be cut thickness 0.2 ~ 0.6 centimetre and form outer joint face;
(3) use drilling machine tool inwardly to bore 6 ~ 9 centimetres of formation interconnecting holes along the outer end, centre of liquid presses piston pole termination, and test processing dimension with mould;
(4) bistrique is coordinated to carry out debris removal by interconnecting hole with hand drill machine;
(5) with the drill bit changing drilling machine tool, then the centre of interconnecting hole side is drilled with the inner position groove of 0.4 ~ 0.7 centimetre;
(6) the upper interior of the collar extension of interconnecting hole is processed upper transition face along portion,
(7) the lower interior of the collar extension of interconnecting hole is processed lower transition face along portion,
(8) use the buffing of hand-ground equipment take turns and control at 2200 ~ 2400 turns/min, finishing polish is carried out to the outside of liquid presses piston pole termination.
The grooved of described inner position groove is isosceles triangle.
Described upper transition face is its angle of arcwall face is 15 ~ 30 °, and described lower transition face is plane.
The present invention is easy and simple to handle, improves the quality of production of the rod end head of liquid presses piston pole, improves production efficiency; Effectively reduce the scrappage of the rod end head of liquid presses piston pole, reduce production cost, be conducive to mass production.
Below with reference to drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is the organigram of the rod end head of liquid presses piston pole of the present invention.
detailed description of the invention
Embodiment 1, as shown in Figure 1, a kind of rod end head processing technology of liquid presses piston pole, it is characterized in that, its step is as follows:
(1) choose liquid presses piston pole, eliminate rust in liquid presses piston pole termination 1;
(2) use stock-removing machine periphery, liquid presses piston pole termination 1 to be cut thickness 0.2 ~ 0.6 centimetre and form outer joint face;
(3) use drilling machine tool inwardly to bore 6 ~ 9 centimetres of formation interconnecting holes 2 along the outer end, centre of liquid presses piston pole termination 1, and test processing dimension with mould;
(4) bistrique is coordinated to carry out debris removal by interconnecting hole 2 with hand drill machine;
(5) with the drill bit changing drilling machine tool, then the centre of interconnecting hole side is drilled with the inner position groove 3 of 0.4 ~ 0.7 centimetre;
(6) the upper interior of the collar extension of interconnecting hole is processed upper transition face 4 along portion; Described upper transition face 4 be upper interior along upside, portion and upper interior be 15 ~ 30 ° along forming its angle of arc fillet between portion's medial extremity;
(7) the lower interior of the collar extension of interconnecting hole is processed lower transition face 5 along portion; Described lower transition face 5 is upper interior along upside, portion and upper interior along plane between portion's medial extremity; The degree of depth of tangent plane is at 1 ~ 3 centimetre.
(8) use the buffing of hand-ground equipment take turns and control at 2200 ~ 2400 turns/min, finishing polish is carried out to the outside of liquid presses piston pole termination.
Above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
(7) roughly grind: part is loaded double-ended grinding machine and carry out surface corase grind;
(8) hole: tapping is carried out to the screw tapping machine that the flange fitting part circumference of part is evenly laid;
(9) nock processed: arrange camber line between 2 screws of the flange accessory of part, by lathe tool car nock;
(10) milling cross section, by the sleeve pipe blank part milling cutter of part at the joint face from oral area to the bottom milling degree of depth at 5cm-9cm;
(11) part is placed in vertical double-sided grinding machine carries out two-sided fine grinding; With brush flash trimmer, deburring is carried out to piece surface and edge; And adopt demagnetizer to carry out demagnetization to part; Part is cleaned, packaging warehouse-in.
Beneficial effect of the present invention: compared with prior art, its beneficial effect is in the present invention: take 1, steel pipe as matrix, take full advantage of the feature that steel pipe plasticity is strong; 2, the pipe fitting that the present invention produces is cut open after tested, and tensile strength is greater than 600Mpa, and hardness is 20 degree, is better than general prior art; 3, long service life.
Below with reference to drawings and Examples, the present invention is described in detail.
Accompanying drawing explanation
Fig. 1 is organigram of the present invention.
In figure: 1. flange big envelope, 2. screw, 3. nock, the 4. joint face of hydraulic cylinder.
detailed description of the invention
Embodiment 1, as shown in Figure 1, a kind of manufacture craft of flange big envelope of hydraulic cylinder, is characterized in that: comprise the following steps:
(1) select materials: select wall thickness 4cm ~ 6cm, diameter at the 42CrMoE of 8cm ~ 15cm, the sleeve pipe blank of cutting 4cm ~ 10cm length,
Select thickness at the 42CrMoE plate of 4cm ~ 6cm, cutting diameter the circle of 15cm ~ 20cm flange accessory and wherein the heart position cutting 9cm ~ 16cm circular hole;
(2) pretreatment: pickling is carried out to sleeve pipe blank and flange accessory;
(3) check: check that piece surface is with or without rigid scuffing, then sub-electing without scratching product, cleaning, ensure the noresidue globule, non-corroding and essence punching oil; Deburring is carried out to part;
(4) weld: sleeve pipe blank is placed in the circular hole of flange accessory, the gap of reserved 0.3mm to 0.4mm between the circular hole internal diameter of flange accessory and sleeve pipe blank external diameter, then superaudio induction coil is used, heating muff blank and flange accessory, closely weld together sleeve pipe blank and flange accessory connecting portion subsequently simultaneously;
(5) punching: wait point division 6 screw districts to flange accessory outside, at center essence punching 6 screws 2 in screw district;
(6) high-frequency quenching heat treatment is carried out to part, wherein: the water temperature < of quenching WATER AS FLOW MEDIUM 40 DEG C, to quench tempering in latter 2 hours, the hardness requirement of part is reached: extreme hardness values is the effective case depth of 480HV1 is 0.5 ~ 1.5mm; Adopt shot-blasting machine to carry out ball blast processing to part, improve the fineness of piece surface and blind hole internal surface;
(7) roughly grind: part is loaded double-ended grinding machine and carry out surface corase grind;
(8) hole: tapping is carried out to the screw tapping machine that the flange fitting part circumference of part is evenly laid;
(9) nock processed: arrange camber line between 2 screws of the flange accessory of part, by lathe tool car nock 3;
(10) milling cross section, by the sleeve pipe blank part milling cutter of part at the joint face 4 from oral area to the bottom milling degree of depth at 5cm-9cm;
(11) the flange big envelope 1 of hydraulic cylinder is placed in vertical double-sided grinding machine carries out two-sided fine grinding; With brush flash trimmer, deburring is carried out to piece surface and edge; And adopt the flange big envelope of demagnetizer to hydraulic cylinder to carry out demagnetization; The flange big envelope of hydraulic cylinder is cleaned, packaging warehouse-in.
The manufacture craft of the flange big envelope of embodiment 2, a kind of hydraulic cylinder, is characterized in that: comprise the following steps:
(1) select materials: select wall thickness 4cm ~ 6cm, diameter at the 38CrMoALA pipe fitting of 8cm ~ 15cm, the sleeve pipe blank of cutting 4cm ~ 10cm length,
Select thickness at the 38CrMoALA plate of 4cm ~ 6cm, cutting diameter the circle of 15cm ~ 20cm flange accessory and wherein the heart position cutting 9cm ~ 16cm circular hole;
(2) pretreatment: pickling is carried out to sleeve pipe blank and flange accessory;
(3) check: check that piece surface is with or without rigid scuffing, then sub-electing without scratching product, cleaning, ensure the noresidue globule, non-corroding and essence punching oil; Deburring is carried out to part;
(4) weld: sleeve pipe blank is placed in the circular hole of flange accessory, the gap of reserved 0.3mm to 0.4mm between the circular hole internal diameter of flange accessory and sleeve pipe blank external diameter, then superaudio induction coil is used, heating muff blank and flange accessory, closely weld together sleeve pipe blank and flange accessory connecting portion subsequently simultaneously;
(5) punching: wait point division 6 screw districts to flange accessory outside, at center essence punching 6 screws 2 in screw district;
(6) high-frequency quenching heat treatment is carried out to part, wherein: the water temperature < of quenching WATER AS FLOW MEDIUM 40 DEG C, to quench tempering in latter 2 hours, the hardness requirement of part is reached: extreme hardness values is the effective case depth of 480HV1 is 0.5 ~ 1.5mm; Adopt shot-blasting machine to carry out ball blast processing to part, improve the fineness of piece surface and blind hole internal surface;
(7) roughly grind: part is loaded double-ended grinding machine and carry out surface corase grind;
(8) hole: tapping is carried out to the screw tapping machine that the flange fitting part circumference of part is evenly laid;
(9) nock processed: arrange camber line between 2 screws of the flange accessory of part, by lathe tool car nock 3;
(10) milling cross section, by the sleeve pipe blank part milling cutter of part at the joint face 4 from oral area to the bottom milling degree of depth at 5cm-9cm;
(11) the flange big envelope 1 of hydraulic cylinder is placed in vertical double-sided grinding machine carries out two-sided fine grinding; With brush flash trimmer, deburring is carried out to piece surface and edge; And adopt the flange big envelope of demagnetizer to hydraulic cylinder to carry out demagnetization; The flange big envelope of hydraulic cylinder is cleaned, packaging warehouse-in.
Above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that the common engineers and technicians in this area make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
The part that the present invention does not relate to prior art that maybe can adopt all same as the prior art is realized.
Claims (4)
1. a rod end head processing technology for liquid presses piston pole, it is characterized in that, its step is as follows:
(1) choose liquid presses piston pole, eliminate rust in liquid presses piston pole termination;
(2) use stock-removing machine periphery, liquid presses piston pole termination to be cut thickness 0.2 ~ 0.6 centimetre and form outer joint face;
(3) use drilling machine tool inwardly to bore 6 ~ 9 centimetres of formation interconnecting holes along the outer end, centre of liquid presses piston pole termination, and test processing dimension with mould;
(4) bistrique is coordinated to carry out debris removal by interconnecting hole with hand drill machine;
(5) with the drill bit changing drilling machine tool, then the centre of interconnecting hole side is drilled with the inner position groove of 0.4 ~ 0.7 centimetre;
(6) the upper interior of the collar extension of interconnecting hole is processed upper transition face along portion;
(7) the lower interior of the collar extension of interconnecting hole is processed lower transition face along portion;
(8) use the buffing of hand-ground equipment take turns and control at 2200 ~ 2400 turns/min, finishing polish is carried out to the outside of liquid presses piston pole termination.
2. the rod end head processing technology of liquid presses piston pole as claimed in claim 1, is characterized in that: the grooved of described described inner position groove is isosceles triangle.
3. the rod end head processing technology of liquid presses piston pole as claimed in claim 1, is characterized in that: described upper transition face is its angle of arcwall face is 15 ~ 30 °.
4. the rod end head processing technology of liquid presses piston pole as claimed in claim 1, is characterized in that: described lower transition face is plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344771.2A CN105269250A (en) | 2014-07-20 | 2014-07-20 | Machining process for rod end of hydraulic piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344771.2A CN105269250A (en) | 2014-07-20 | 2014-07-20 | Machining process for rod end of hydraulic piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105269250A true CN105269250A (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410344771.2A Pending CN105269250A (en) | 2014-07-20 | 2014-07-20 | Machining process for rod end of hydraulic piston rod |
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| Country | Link |
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| CN (1) | CN105269250A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161087A (en) * | 2021-12-01 | 2022-03-11 | 上海航天设备制造总厂有限公司 | Method for processing valve assembly made of dissimilar materials |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3550233A (en) * | 1968-05-08 | 1970-12-29 | Lucas Industries Ltd | Methods of making rotors for piston type hydraulic pumps and motors |
| US4419804A (en) * | 1980-05-31 | 1983-12-13 | Fichtel & Sachs Ag | Method for manufacturing a piston rod unit |
| US5842911A (en) * | 1993-07-14 | 1998-12-01 | Weber; Guenter | Method of making pistons and piston rods as well as cylinders for hydraulic or pneumatic apparatus |
| CN202867817U (en) * | 2012-10-19 | 2013-04-10 | 诸城盛丰气动设备有限公司 | Novel piston rod |
| CN103419001A (en) * | 2012-05-16 | 2013-12-04 | 扬州市江都永坚有限公司 | Piston rod processing technology |
| CN103447771A (en) * | 2013-09-13 | 2013-12-18 | 上海沪东造船油嘴油泵有限公司 | Processing method for piston rod assembly |
| CN103624495A (en) * | 2013-11-29 | 2014-03-12 | 陈禄 | Piston rod machining method |
| CN203641484U (en) * | 2013-12-11 | 2014-06-11 | 马鞍山市恒毅机械制造有限公司 | Piston rod with anti-falling structure |
-
2014
- 2014-07-20 CN CN201410344771.2A patent/CN105269250A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3550233A (en) * | 1968-05-08 | 1970-12-29 | Lucas Industries Ltd | Methods of making rotors for piston type hydraulic pumps and motors |
| US4419804A (en) * | 1980-05-31 | 1983-12-13 | Fichtel & Sachs Ag | Method for manufacturing a piston rod unit |
| US5842911A (en) * | 1993-07-14 | 1998-12-01 | Weber; Guenter | Method of making pistons and piston rods as well as cylinders for hydraulic or pneumatic apparatus |
| CN103419001A (en) * | 2012-05-16 | 2013-12-04 | 扬州市江都永坚有限公司 | Piston rod processing technology |
| CN202867817U (en) * | 2012-10-19 | 2013-04-10 | 诸城盛丰气动设备有限公司 | Novel piston rod |
| CN103447771A (en) * | 2013-09-13 | 2013-12-18 | 上海沪东造船油嘴油泵有限公司 | Processing method for piston rod assembly |
| CN103624495A (en) * | 2013-11-29 | 2014-03-12 | 陈禄 | Piston rod machining method |
| CN203641484U (en) * | 2013-12-11 | 2014-06-11 | 马鞍山市恒毅机械制造有限公司 | Piston rod with anti-falling structure |
Non-Patent Citations (1)
| Title |
|---|
| 王益群等: "《液压工程师技术手册》", 31 March 2010 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114161087A (en) * | 2021-12-01 | 2022-03-11 | 上海航天设备制造总厂有限公司 | Method for processing valve assembly made of dissimilar materials |
| CN114161087B (en) * | 2021-12-01 | 2023-11-28 | 上海航天设备制造总厂有限公司 | Processing method of valve assembly composed of dissimilar materials |
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Application publication date: 20160127 |