CN102407423A - Machining method for valve seat of respiratory flow rhythm control air valve - Google Patents
Machining method for valve seat of respiratory flow rhythm control air valve Download PDFInfo
- Publication number
- CN102407423A CN102407423A CN2011102960581A CN201110296058A CN102407423A CN 102407423 A CN102407423 A CN 102407423A CN 2011102960581 A CN2011102960581 A CN 2011102960581A CN 201110296058 A CN201110296058 A CN 201110296058A CN 102407423 A CN102407423 A CN 102407423A
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- valve seat
- inner cylinder
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- cylinder face
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- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000003754 machining Methods 0.000 title claims abstract description 17
- 230000000241 respiratory effect Effects 0.000 title claims abstract description 15
- 230000033764 rhythmic process Effects 0.000 title claims abstract description 15
- 238000003672 processing method Methods 0.000 claims description 14
- 238000000465 moulding Methods 0.000 claims description 7
- 238000007514 turning Methods 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims description 6
- 238000005553 drilling Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 2
- 238000005520 cutting process Methods 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 2
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Abstract
The invention relates to a method for processing a valve seat of a respiratory flow rhythm control air valve. The inner cavity of the valve seat is formed by sequentially connecting an upper inner cylindrical surface, an inner end surface, a step surface, a middle inner cylindrical surface, an upper conical surface, a lower inner cylindrical surface, an inner tool retracting ring groove and a threaded surface; the machining method of the valve seat of the respiratory flow rhythm control air valve comprises the steps of uniformly cutting and machining the inner surface through the circulating program instruction function of a numerical control lathe; programming a step surface and an inner tool withdrawal groove in the vehicle by adopting a forming tool; processing the outside of the valve seat by using automatic programming software of a numerical control processing center; processing the thread on the valve seat by adopting special thread processing equipment; and finishing the machining of the valve seat by a valve seat material post-treatment process. The invention has reasonable design and rigorous conception, adopts a new technology for manufacturing, saves the manufacturing time, improves the product quality performance, enhances the stability, reliability and safety of operation and shortens the product delivery period.
Description
Technical field
The present invention relates to the air-valve device technical field in the medical ventilator, refer in particular to a kind of respiratory flow rhythm and pace of moving things control air valve valve seat and processing method thereof.
Background technology
In common valve seat processing and manufacturing technology,, add man-hour at present, adopt plain clamp clamping valve seat usually, utilize universal cutter to carry out simple turning processing and just can reach instructions for use because valve base cavity is relatively simple for structure; Yet, need supply spool to move up and down break-make gas for the inner chamber in the valve seat of using in the medical ventilator, therefore, the axiality of each face that the inner chamber in this valve seat cooperates with spool and fineness require very high.For the complicated valve seat of this inner-cavity structure, adopt existing valve seat processing technology to add man-hour, this existing processing technology procedure of processing is various, the bad control of precision, surface quality is poor, and burr is difficult to remove, and the valve seat coaxiality error that processes is bigger.In view of this, how to provide a kind of new valve seat processing method that can satisfy axiality and fineness requirement to become problem to be solved is arranged.
Summary of the invention
The object of the invention is exactly a kind of respiratory flow rhythm and pace of moving things control air valve valve seat processing method that provides to the weak point of prior art.
For achieving the above object; A kind of respiratory flow rhythm and pace of moving things control air valve valve seat processing method of the present invention; The inner chamber of this valve seat by last inner cylinder face, inner face, step surface, middle inner cylinder face, go up taper seat, down taper seat, inner cylinder face, interior withdrawing annular groove and flank are connected in sequence down, and go up inner cylinder face, inner face, step surface, middle inner cylinder face, go up taper seat, down the axial line of taper seat all on same central axis; This valve base cavity process is all processed on numerically controlled lathe, may further comprise the steps successively:
1) turning of processing metal raw material is shaped to column type valve seat base, pulls down column type valve seat base, utilizes valve seat stock outer cylinder surface clamping on anchor clamps, and the valve seat stock is steadily fixing;
2) adopt center bit to bore a upper surface centre bore, as the locating hole of back processing in the center of the upper surface of the column type valve seat base of measuring;
3) change a drill bit littler and carry out roughing, get into position above the step surface from the valve seat upper surface than last inner cylinder face diameter;
4) has slightly bored inner cylinder face after, change a drill bit and carry out roughing less than middle inner cylinder face diameter, drilling depth is drilled into middle inner cylinder face and above the last taper seat intersection;
5) slightly bored middle inner cylinder face, changed a drill bit again, be drilled into down the face of cylinder and following taper seat small end basal surface position less than following taper seat top diameter;
6) change an inner face special molding cutter along the feed of Z direction to inner face fine finishining;
7) adopt in circle boring cutter fine finishining step surface, chamfering, middle inner cylinder face, go up taper seat, taper seat down, valve seat upper end inner cylinder face machines;
8) with column type valve seat base down from the anchor clamps dismounting; Column type valve seat base clamping is fixed in tune; The processing valve seat other end; The center of the lower surface of column type valve seat base is measured in the lower surface of finish turning column type valve seat base, adopts center bit to bore a lower surface centre bore in the center of the lower surface of the column type valve seat base of measuring;
9) centre bore slightly bores and is machined to down the inner cylinder face top from the lower surface to change the inner cylinder face diameter is little under the ratio drill bit;
10) slightly bored down inner cylinder face, changed a diameter again and slightly bore flank to the inner groove bottom position less than the drill bit of flank;
11) utilize interior circle boring cutter double thread face and following inner cylinder face fine finishining;
12) change an inner groove moulding cutter inner groove is carried out disposable completion fine finishining;
13) last double thread face carries out screw thread processing.
Also comprise the 14th last step: utilize CNC milling machine machining center machining with column type valve seat base six faces in outside; Utilize automatic programming software to the processing of programming of valve seat model again; To the plane of characteristic threads is arranged; Process the screw thread datum hole earlier, utilize tapping machine that the screw thread on each plane of valve seat is carried out tapping again.
After adopting said structure, the processing method of valve seat of the present invention has overcome the bad control of existing valve seat machining accuracy, and surface quality is poor, and tooling step is various, deficiencies such as burr; Processing method of the present invention makes the wider of lathe in machining scope change, and machining accuracy is guaranteed, and has reduced procedure, can be used for the high product processing of Geometrical Tolerance Principle; In the process, adopt multiple lathe rationally to be used, improved the serviceability of equipment greatly, improved machining accuracy, shorten the process-cycle.After adopting valve seat processing method of the present invention, the axiality of the last inner cylinder face in the valve base cavity of the present invention, inner face, step surface, middle inner cylinder face, last taper seat, following taper seat is guaranteed, and the machining accuracy of each machined surface is guaranteed.
Description of drawings
Fig. 1 is respiratory flow rhythm and pace of moving things control air valve valve base cavity perspective view of the present invention.
Fig. 2 is respiratory flow rhythm and pace of moving things control air valve valve base cavity planar structure sketch map of the present invention.
Fig. 3 is respiratory flow rhythm and pace of moving things control air valve valve seat perspective view of the present invention.
Fig. 4 is assemblied in the sketch map of respiratory flow rhythm and pace of moving things control air-valve device for the processing rear valve base.
The specific embodiment
Shown in Fig. 1-4; A kind of respiratory flow rhythm and pace of moving things control air valve valve seat processing method of the present invention; It is characterized in that: the inner chamber of this valve seat by last inner cylinder face 1, inner face 2, step surface 3, middle inner cylinder face 4, go up taper seat 5, down taper seat 6, inner cylinder face 7, interior withdrawing annular groove 8 and flank 9 are connected in sequence down, and go up inner cylinder face 1, inner face 2, step surface 3, middle inner cylinder face 4, go up taper seat 5, down the axial line of taper seat 6 all on same central axis; This valve base cavity process is all processed on numerically controlled lathe, may further comprise the steps successively:
1) turning of processing metal raw material is shaped to column type valve seat base, pulls down column type valve seat base, utilizes valve seat stock outer cylinder surface clamping on anchor clamps, and the valve seat stock is steadily fixing;
2) adopt center bit to bore a upper surface centre bore, as the locating hole of back processing in the center of the upper surface of the column type valve seat base of measuring;
3) change one and carry out roughing, position above step surface 3 is got in the valve seat upper surface than the little drill bit of last inner cylinder face 1 diameter;
4) has slightly bored inner cylinder face 1 after, change a drill bit and carry out roughing less than middle inner cylinder face 4 diameters, drilling depth is drilled into middle inner cylinder face 4 and above last taper seat 5 intersections;
5) slightly bored middle inner cylinder face 4, changed a drill bit again, be drilled into down the face of cylinder 7 and following taper seat 6 small end basal surface positions less than following taper seat 6 top diameters;
6) change inner face 2 special molding cutter along the feed of Z direction to inner face 2 fine finishining;
7) adopt in circle boring cutter fine finishining step surface 3, chamfering 41, middle inner cylinder face 4, go up taper seat 5, taper seat 6 down, valve seat upper end inner cylinder face machines;
8) with column type valve seat base down from the anchor clamps dismounting; Column type valve seat base clamping is fixed in tune; The processing valve seat other end; The center of the lower surface of column type valve seat base is measured in the lower surface of finish turning column type valve seat base, adopts center bit to bore a lower surface centre bore in the center of the lower surface of the column type valve seat base of measuring;
9) centre bore slightly bores and is machined to down the inner cylinder face top from the lower surface to change inner cylinder face 7 diameters are little under the ratio drill bit;
10) slightly bored down inner cylinder face 7, changed a diameter again and slightly bore flank 9 to the inner groove bottom position less than the drill bit of flank 9;
11) utilize interior circle boring cutter double thread face 9 and following inner cylinder face 7 fine finishining;
12) change an inner groove 8 moulding cuttves inner groove 8 is carried out disposable completion fine finishining;
13) last double thread face 9 carries out screw thread processing.
Also comprise the 14th last step: utilize CNC milling machine machining center machining with column type valve seat base six faces in outside; Utilize automatic programming software to the processing of programming of valve seat model again; To the plane of characteristic threads is arranged; Process the screw thread datum hole earlier, utilize tapping machine that the screw thread on each plane of valve seat is carried out tapping again.
When respiratory flow rhythm and pace of moving things control air valve valve seat of the present invention assembles, as shown in Figure 4, comprise taper seat 5, following taper seat 6, assembling core assembly 11 above the middle inner cylinder face 4; Inner groove 8 and flank 9 be thimble assembly 17 fixedly; Valve seat 10 upper surfaces and valve gap 12 are fixed together through screw, connect rotating shaft 15 on the core assembly 11, and rotary nut 13 and knob 14 are housed in the rotating shaft 15; Magnetic valve 16 is contained in valve seat 10 sides, and fixed form is that screw is fixed.During work, core assembly 11 is along last taper seat 5, taper seat 6, middle inner cylinder face 4 slide up and down the size control of the break-make and the tolerance of the gas of realizing air valve down.Therefore, require very highly just can reach designing requirement for the axiality of valve seat 10 inner chambers and fineness.
The processing method of valve seat of the present invention has overcome the bad control of existing valve seat machining accuracy, and surface quality is poor, and tooling step is various, deficiencies such as burr; Processing method of the present invention makes the wider of lathe in machining scope change, and machining accuracy is guaranteed, and has reduced procedure, can be used for the high product processing of Geometrical Tolerance Principle; In the process, adopt multiple lathe rationally to be used, improved the serviceability of equipment greatly, improved machining accuracy, shorten the process-cycle.After adopting valve seat processing method of the present invention; The axiality of the last inner cylinder face in the valve base cavity of the present invention, inner face, step surface, middle inner cylinder face, last taper seat, following taper seat is guaranteed; When adopting the working face of various forming-tool processing correspondences; Can not have influence on other machined surface, machining accuracy is guaranteed, reduce procedure.
The present invention carries out even cut through numerically controlled lathe cyclic program command function to inner surface; Adopt step surface and necking in the forming-tool programming car; Utilize the numerical control machining center automatic programming software that the valve seat outside is processed; Adopt the screw thread on the special screw thread process equipment processing valve seat; Accomplish the processing of valve seat through the seat material aftertreatment technology.The present invention is reasonable in design, conceives rigorously, adopts moulding cutter and Numeric Control Technology to make, and has saved manufacturing time, has improved the product quality performance, and the stability of operation, reliability, security are strengthened, and have shortened the product friendship phase.
Claims (2)
1. air valve valve seat processing method controlled in a respiratory flow rhythm and pace of moving things; It is characterized in that: the inner chamber of this valve seat by last inner cylinder face (1), inner face (2), step surface (3), middle inner cylinder face (4), go up taper seat (5), down taper seat (6), inner cylinder face (7), interior withdrawing annular groove (8) and flank (9) are connected in sequence down, and go up inner cylinder face (1), inner face (2), step surface (3), middle inner cylinder face (4), go up taper seat (5), down the axial line of taper seat (6) all on same central axis; This valve base cavity process is all processed on numerically controlled lathe, may further comprise the steps successively:
1) turning of processing metal raw material is shaped to column type valve seat base, pulls down column type valve seat base, utilizes valve seat stock outer cylinder surface clamping on anchor clamps, and the valve seat stock is steadily fixing;
2) adopt center bit to bore a upper surface centre bore, as the locating hole of back processing in the center of the upper surface of the column type valve seat base of measuring;
3) change one and carry out roughing, position above step surface (3) is got in the valve seat upper surface than the little drill bit of last inner cylinder face (1) diameter;
4) slightly bored inner cylinder face (1) after, change a drill bit and carry out roughing less than middle inner cylinder face (4) diameter, drilling depth is drilled into middle inner cylinder face (4) and last taper seat (5) above the intersection;
5) slightly bored middle inner cylinder face (4), changed a drill bit again, be drilled into down the face of cylinder (7) and following taper seat (6) small end basal surface position less than following taper seat (6) top diameter;
6) change an inner face (2) special molding cutter along the feed of Z direction to inner face (2) fine finishining;
7) adopt in circle boring cutter fine finishining step surface (3), chamfering (41), middle inner cylinder face (4), go up taper seat (5), taper seat (6) down, valve seat upper end inner cylinder face machines;
8) with column type valve seat base down from the anchor clamps dismounting; Column type valve seat base clamping is fixed in tune; The processing valve seat other end; The center of the lower surface of column type valve seat base is measured in the lower surface of finish turning column type valve seat base, adopts center bit to bore a lower surface centre bore in the center of the lower surface of the column type valve seat base of measuring;
9) centre bore slightly bores and is machined to down the inner cylinder face top from the lower surface to change inner cylinder face (7) diameter is little under the ratio drill bit;
10) slightly bored down inner cylinder face (7), changed a diameter again and slightly bore flank (9) to the inner groove bottom position less than the drill bit of flank (9);
11) utilize interior circle boring cutter double thread face (9) and following inner cylinder face (7) fine finishining;
12) change an inner groove (8) moulding cutter inner groove (8) is carried out disposable completion fine finishining;
13) last double thread face (9) carries out screw thread processing.
2. a kind of respiratory flow rhythm and pace of moving things control air valve valve seat processing method according to claim 1; It is characterized in that: also comprise the 14th last step: utilize CNC milling machine machining center machining column type valve seat base six faces in outside; Utilize automatic programming software to the processing of programming of valve seat model again; To the plane of characteristic threads is arranged, process the screw thread datum hole earlier, utilize tapping machine that the screw thread on each plane of valve seat is carried out tapping again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102960581A CN102407423B (en) | 2011-09-28 | 2011-09-28 | Method for machining valve seat of respiratory flow and rhythm control air valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102960581A CN102407423B (en) | 2011-09-28 | 2011-09-28 | Method for machining valve seat of respiratory flow and rhythm control air valve |
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| Publication Number | Publication Date |
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| CN102407423A true CN102407423A (en) | 2012-04-11 |
| CN102407423B CN102407423B (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102960581A Expired - Fee Related CN102407423B (en) | 2011-09-28 | 2011-09-28 | Method for machining valve seat of respiratory flow and rhythm control air valve |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848133A (en) * | 2012-08-29 | 2013-01-02 | 苏州市意可机电有限公司 | Circular arc tube processing technology |
| CN105729069A (en) * | 2016-03-25 | 2016-07-06 | 江苏星河阀门有限公司 | Machining method of multi-conical surface valve base structure of high-temperature and high-pressure check valve body |
| CN105822779A (en) * | 2016-03-24 | 2016-08-03 | 江苏星河阀门有限公司 | Multi-conical-face valve seat structure of high-temperature and high-pressure stop valve body |
| CN108581366A (en) * | 2018-08-08 | 2018-09-28 | 玉环诺仕橡胶制品有限公司 | A kind of processing technology of miniature valve seat |
| CN110216431A (en) * | 2019-06-25 | 2019-09-10 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of 1000MW Steam Turbine jiggering gear hole |
| CN112846274A (en) * | 2021-03-10 | 2021-05-28 | 厦门厦芝科技工具有限公司 | Processing cutter and processing method for cylindrical spinneret orifices of spunbonded non-woven fabric |
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- 2011-09-28 CN CN2011102960581A patent/CN102407423B/en not_active Expired - Fee Related
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| CN1152488A (en) * | 1995-12-22 | 1997-06-25 | 德州机床厂 | Machining method for deep taper hole |
| DE10346075A1 (en) * | 2003-10-04 | 2005-04-21 | Bosch Gmbh Robert | Method of machining a guide section of inner bore in a nozzle body of fuel injection valve, involves making an inner bore by drilling or turning, with grinding pin being fed into a section of inner bore |
| CN101024266A (en) * | 2006-10-18 | 2007-08-29 | 吉瑞龙(福建)工程机械有限公司 | Hydraulic through-hole processing method and apparatus |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102848133A (en) * | 2012-08-29 | 2013-01-02 | 苏州市意可机电有限公司 | Circular arc tube processing technology |
| CN105822779A (en) * | 2016-03-24 | 2016-08-03 | 江苏星河阀门有限公司 | Multi-conical-face valve seat structure of high-temperature and high-pressure stop valve body |
| CN105729069A (en) * | 2016-03-25 | 2016-07-06 | 江苏星河阀门有限公司 | Machining method of multi-conical surface valve base structure of high-temperature and high-pressure check valve body |
| CN108581366A (en) * | 2018-08-08 | 2018-09-28 | 玉环诺仕橡胶制品有限公司 | A kind of processing technology of miniature valve seat |
| CN108581366B (en) * | 2018-08-08 | 2019-10-01 | 玉环诺仕橡胶制品有限公司 | A kind of processing technology of miniature valve seat |
| CN110216431A (en) * | 2019-06-25 | 2019-09-10 | 哈尔滨汽轮机厂有限责任公司 | A kind of processing method of 1000MW Steam Turbine jiggering gear hole |
| CN112846274A (en) * | 2021-03-10 | 2021-05-28 | 厦门厦芝科技工具有限公司 | Processing cutter and processing method for cylindrical spinneret orifices of spunbonded non-woven fabric |
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| CN102407423B (en) | 2013-12-04 |
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