CN103706719A - Cutter used for opening closing of plunger and sliding shoe and opening closing method - Google Patents
Cutter used for opening closing of plunger and sliding shoe and opening closing method Download PDFInfo
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- CN103706719A CN103706719A CN201310671045.7A CN201310671045A CN103706719A CN 103706719 A CN103706719 A CN 103706719A CN 201310671045 A CN201310671045 A CN 201310671045A CN 103706719 A CN103706719 A CN 103706719A
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- plunger
- cutter
- closing
- slippery boots
- boots assembly
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Abstract
The invention discloses a cutter used for opening closing of a plunger and a sliding shoe component and an opening closing method. The cutter comprises a cutter disc, a cutter head (4) with the central section to be an isosceles trapezoid is arranged at the front end of a cutter seat (2) in the middle of the cutter disc, two sides of the isosceles trapezoid are circular arcs (16) with the radiuses to be 1-10mm, and heigh of the isosceles trapezoid is 0.8-10.5mm. The opening closing method includes combining the plunger (9), a locking ring (10) and the sliding shoe component (11) together for matching and grinding, mounting the plunger (9), the locking ring (10) and the sliding shoe component (11) on a lathe, using a soft three jaw (12) to clamp the sliding shoe component (11), using a jacking tip (13) to tightly jack the plunger (9), and abutting the circular arcs (16) of the cutter head (4) against an opening closing position of the sliding shoe component (11) for opening closing. Compared with the prior art, the cutter and the opening closing method have the advantages that indexes of design-required gap, design-required swinging angle, no crack at the opening closing position and the like are achieved after opening closing of the plunger and the sliding shoe component of an engine fuel adjuster on the lathe.
Description
Technical field
The present invention is a kind of cutter and closing method closing up for plunger, slippery boots assembly, belongs to machine-shaping technical field.
Background technology
It is all to adopt manual method of impacting to close up that existing plunger, slippery boots assembly close up, and need to make seaming tool, and during closing in, pincers worker adopts the method for knocking to make part closing in position produce distortion, reaches the object of closing in.This closing method process velocity is slow, and the process-cycle is long, and part closing in precision is low, and qualification rate is also lower.
The closing in of aero-engine fuel regulator plunger, slippery boots assembly is at present not suitable for adopting said method, because the production of the type part reaches certain batch, the element precision after closing up is had higher requirements.
Summary of the invention
The present invention designs for above-mentioned the deficiencies in the prior art just provides a kind of cutter and closing method closing up for plunger, slippery boots assembly, its objective is the closing in processing that realizes mechanical system, enhance productivity, the qualification rate of machining accuracy and product.
The object of the invention is to be achieved through the following technical solutions:
Technical solution of the present invention provides a kind of cutter closing up for plunger, slippery boots assembly, and this cutter comprises:
A cutterhead, the middle part of cutterhead is the tool rest (2) of a plate-like, the rear end of tool rest (2) is a connecting axle (3) that passes the centre bore of cutter hub (1), between connecting axle (3) and centre bore, it is matched in clearance, after assembling, the circle of tool rest (2) is beated and is not more than 0.05mm, cutter hub (1) is connected with lathe saddle, and cutter hub (1) appearance and size should design according to lathe saddle size;
The front end of tool rest (2) is the cutter head (4) that one section of central cross-section is isosceles trapezoid, the bottom surface of cutter head (4) overlaps with the lower surface of tool rest (2), two waists of described isosceles trapezoid are that radius is the circular arc (16) of 1mm～10mm, and the height of described isosceles trapezoid is 0.8mm～10.5mm.
The hardness of cutter head (4) is 55～60HRC, roughness Ra 0.8.
On tool rest (2) front and rear end, the surrounding of centre bore is processed with annular groove (5), the diameter of annular groove (5) is 18mm～22mm, the degree of depth is 2.5mm～4.5mm, the steel ball (6) that the interior filling radius of annular groove (5) is Φ 3～Φ 5.
The method that the cutter that the present invention also provides the above-mentioned plunger of a kind of use, slippery boots assembly to close up closes up, the hardness at described plunger, slippery boots assembly closing in position is 28～35HRC, it is characterized in that: steps of the method are:
Step 1 is combined plunger (9), retaining ring (10) and slippery boots assembly (11) to coordinate and grind;
Close up in the closing in position (15) that for step 3, the circular arc position (16) of the cutter head (4) of plunger, slippery boots assembly closing in cutter leans against slippery boots assembly (11), tool rest (2) is vertical with the center line (14) of plunger (9), and tool rest (2) cylindrical can not contact part.Cutter should laterally be wanted feed by length feed again, and the strength by cutter roll extrusion is out of shape piston shoes closing in position, and the bulb of plunger (9) is held tightly, reaches the object of closing in.
In closing in process, it is suitable that the piston shoes material first closing up and matrix hardness are selected, and should have certain hardness, and after guaranteeing to close up, closing in position is firm, substantially indeformable.Again can not be too hard, there is certain plasticity, guarantee to close up to requiring shape smoothly, and can not there is crackle in closing in position.
Before closing up, the piston shoes endosphere that will close up and plunger ectosphere matchs to processing, testing, make it spherical identical, and detect accordingly, to guarantee the quality that closes up;
During closing in, make closing in position (15) distortion of slippery boots assembly by the strength of cutter roll extrusion, the structure of cutter head (4) should be born cross force, can bear longitudinal force again, and force part shape just can process qualified products.
The advantage of technical solution of the present invention is to make engine fuel adjuster plunger, slippery boots assembly on lathe, carry out machinery to close up, and can reach the requirements such as gap, pendulum angle, closing in position flawless of design drawing requirement.Solved the shortcoming of traditional closing in mode.
Accompanying drawing explanation
Fig. 1 plunger piston slippery boots combining structure schematic diagram
Fig. 2 is the structural representation of cutter of the present invention
Fig. 3 is the scheme of installation of plunger piston slippery boots sub-assembly on lathe
Fig. 4 is the closing in schematic diagram of plunger piston slippery boots sub-assembly on lathe
The specific embodiment
Below with reference to drawings and Examples, technical solution of the present invention is further described:
Shown in accompanying drawing 2, the cutter that this kind closes up for plunger, slippery boots assembly, is characterized in that: this cutter comprises:
A cutterhead, the middle part of cutterhead is the tool rest 2 of a plate-like, and it is matched in clearance between connecting axle 3 and centre bore through the connecting axle 3 of the centre bore of cutter hub 1 that the rear end of tool rest 2 is one, and cutter hub 1 is connected with lathe saddle;
The front end of tool rest 2 is cutter heads 4 that one section of central cross-section is isosceles trapezoid, and the bottom surface of cutter head 4 overlaps with the lower surface of tool rest 2, and two waists of described isosceles trapezoid are that radius is the circular arc 16 of 1mm～10mm, and the height of described isosceles trapezoid is 0.8mm～10.5mm.
The hardness of cutter head 4 is 55～60HRC, roughness Ra 0.8.
On tool rest 2 front and rear ends, the surrounding of centre bore is processed with annular groove 5, and the diameter of annular groove 5 is 18mm～22mm, and the degree of depth is 2.5mm～4.5mm, the steel ball 6 that the interior filling radius of annular groove 5 is Φ 3～Φ 5.
Adopt this cutter to carry out
The step of the method closing up with the cutter that above-mentioned plunger, slippery boots assembly close up is:
Described in step 1, the hardness at plunger, slippery boots assembly closing in position is 28～35HRC, plunger 9, retaining ring 10 and slippery boots assembly 11 are combined and coordinated and grind, specific practice is that slippery boots assembly 11 endospheres and plunger 9 ectospheres that will close up carry out grinding, grind after stain check, stained area is not less than 80%;
Close up in the closing in position 15 that for step 3, the circular arc position 16 of the cutter head 4 of plunger, slippery boots assembly closing in cutter leans against slippery boots assembly 11, the radius at circular arc position 16 can be selected as required within the scope of 1mm～10mm, tool rest 2 is vertical with the center line 14 of plunger 9, during closing in, cutter should length feed, laterally want again feed, strength by cutter roll extrusion is out of shape piston shoes closing in position, and the bulb of plunger 9 is held tightly, reaches the object of closing in.
After closing in completes, with measuring tool, test, check and whether reach design drawing closing in requirement.These indexes comprise between closing in back-plunger, piston shoes will certain gap, and will go slick; Closing in back-plunger should be able to be along the smooth operation of axis any direction to certain angle, without unsmooth and creak sound in piston shoes; Four times of lens examination flawlesses for closing in place; After closing in, should carry out pulling-out force test, pulling-out force is not less than setting.
Compared with prior art, technical solution of the present invention has reached the indexs such as the gap, pendulum angle, closing in position flawless of designing requirement after engine fuel adjuster plunger, slippery boots assembly are closed up on lathe, solved the indeterminable problem of traditional closing in mode, can enhance productivity, significantly improve machining accuracy, part qualification rate also improves greatly, has larger actual application value and economic benefit.
Claims (4)
1. the cutter closing up for plunger, slippery boots assembly, is characterized in that: this cutter comprises:
A cutterhead, the middle part of cutterhead is the tool rest (2) of a plate-like, it is matched in clearance through the connecting axle (3) of the centre bore of cutter hub (1) between connecting axle (3) and centre bore that the rear end of tool rest (2) is one, and cutter hub (1) is connected with lathe saddle;
The front end of tool rest (2) is the cutter head (4) that one section of central cross-section is isosceles trapezoid, the bottom surface of cutter head (4) overlaps with the lower surface of tool rest (2), two waists of described isosceles trapezoid are that radius is the circular arc (16) of 1mm～10mm, and the height of described isosceles trapezoid is 0.8mm～10.5mm.
2. the cutter closing up for plunger, slippery boots assembly according to claim 1, is characterized in that: the hardness of cutter head (4) is 55～60HRC, roughness Ra 0.8.
3. the cutter closing up for plunger, slippery boots assembly according to claim 1, it is characterized in that: on tool rest (2) front and rear end, the surrounding of centre bore is processed with annular groove (5), the diameter of annular groove (5) is 18mm～22mm, the degree of depth is 2.5mm～4.5mm, the steel ball (6) that the interior filling radius of annular groove (5) is Φ 3～Φ 5.
4. with a closing method for the cutter that described in claim 1, plunger, slippery boots assembly close up, the hardness at described plunger, slippery boots assembly closing in position is 28～35HRC, it is characterized in that: steps of the method are:
Step 1 is combined plunger (9), retaining ring (10) and slippery boots assembly (11) to coordinate and grind;
Step 2 is arranged on the sub-assembly of plunger (9), retaining ring (10) and slippery boots assembly (11) on lathe and clamps slippery boots assembly (11) with soft three-jaw (12), with top (13), hold out against plunger (9), make the center line (14) of plunger (9) through the center of slippery boots assembly (11) endosphere and endoporus;
Close up in the closing in position (15) that for step 3, the circular arc position (16) of the cutter head (4) of plunger, slippery boots assembly closing in cutter leans against slippery boots assembly (11), tool rest (2) is vertical with the center line (14) of plunger (9), during closing in, cutter should length feed, laterally want again feed, strength by cutter roll extrusion is out of shape piston shoes closing in position, the bulb of plunger (9) is held tightly, reached the object of closing in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671045.7A CN103706719B (en) | 2013-12-10 | 2013-12-10 | A kind of cutter for plunger, slippery boots assembly closing in and closing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310671045.7A CN103706719B (en) | 2013-12-10 | 2013-12-10 | A kind of cutter for plunger, slippery boots assembly closing in and closing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103706719A true CN103706719A (en) | 2014-04-09 |
| CN103706719B CN103706719B (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310671045.7A Expired - Fee Related CN103706719B (en) | 2013-12-10 | 2013-12-10 | A kind of cutter for plunger, slippery boots assembly closing in and closing method |
Country Status (1)
| Country | Link |
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| CN (1) | CN103706719B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105817543A (en) * | 2016-05-19 | 2016-08-03 | 无锡威孚精密机械制造有限责任公司 | Closing tool of plunger module |
| CN106001286A (en) * | 2016-05-17 | 2016-10-12 | 江苏远业液压机械有限公司 | Nosing process for inversely packed plunger |
| CN109623323A (en) * | 2018-12-28 | 2019-04-16 | 武汉泛洲中越合金有限公司 | The assembly system and assembly method of piston shoes and plunger |
| CN109794537A (en) * | 2019-01-11 | 2019-05-24 | 南京航空航天大学 | Three spinning roller spinning clamps and its operation process suitable for small plunger diameter component |
| CN110919291A (en) * | 2019-12-03 | 2020-03-27 | 中国航空工业集团公司北京航空精密机械研究所 | Rolling loosening device for spherical hinge structure on plunger pump and rolling loosening method thereof |
| CN117696760A (en) * | 2024-02-18 | 2024-03-15 | 常州斯比达自动化设备有限公司 | Numerical control plunger assembly closing-in device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4034766A1 (en) * | 1990-11-02 | 1992-05-07 | Mann Und Kortmann Gmbh | Assembly of shoes onto pistons of axial piston pump - involves closing shoe cup onto ball end in one operation by pressure of orbital rollers |
| CN2110724U (en) * | 1991-09-18 | 1992-07-22 | 贵阳航空液压件厂 | Plunger subassembly recovery device |
| CN202498339U (en) * | 2011-07-20 | 2012-10-24 | 龙工（上海）桥箱有限公司 | Tool for assembling plunger and sliding shoe of axial plunger pump |
| CN103143891A (en) * | 2013-03-06 | 2013-06-12 | 北京工业大学 | Assembly tool and assembly method for piston shoe assembly for water hydraulic piston pump |
-
2013
- 2013-12-10 CN CN201310671045.7A patent/CN103706719B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4034766A1 (en) * | 1990-11-02 | 1992-05-07 | Mann Und Kortmann Gmbh | Assembly of shoes onto pistons of axial piston pump - involves closing shoe cup onto ball end in one operation by pressure of orbital rollers |
| CN2110724U (en) * | 1991-09-18 | 1992-07-22 | 贵阳航空液压件厂 | Plunger subassembly recovery device |
| CN202498339U (en) * | 2011-07-20 | 2012-10-24 | 龙工（上海）桥箱有限公司 | Tool for assembling plunger and sliding shoe of axial plunger pump |
| CN103143891A (en) * | 2013-03-06 | 2013-06-12 | 北京工业大学 | Assembly tool and assembly method for piston shoe assembly for water hydraulic piston pump |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106001286A (en) * | 2016-05-17 | 2016-10-12 | 江苏远业液压机械有限公司 | Nosing process for inversely packed plunger |
| CN106001286B (en) * | 2016-05-17 | 2017-11-03 | 江苏远业液压机械有限公司 | A kind of anti-package plunger bottling technique |
| CN105817543A (en) * | 2016-05-19 | 2016-08-03 | 无锡威孚精密机械制造有限责任公司 | Closing tool of plunger module |
| CN109623323A (en) * | 2018-12-28 | 2019-04-16 | 武汉泛洲中越合金有限公司 | The assembly system and assembly method of piston shoes and plunger |
| CN109794537A (en) * | 2019-01-11 | 2019-05-24 | 南京航空航天大学 | Three spinning roller spinning clamps and its operation process suitable for small plunger diameter component |
| CN110919291A (en) * | 2019-12-03 | 2020-03-27 | 中国航空工业集团公司北京航空精密机械研究所 | Rolling loosening device for spherical hinge structure on plunger pump and rolling loosening method thereof |
| CN117696760A (en) * | 2024-02-18 | 2024-03-15 | 常州斯比达自动化设备有限公司 | Numerical control plunger assembly closing-in device |
| CN117696760B (en) * | 2024-02-18 | 2024-04-23 | 常州斯比达自动化设备有限公司 | Numerical control plunger assembly closing-in device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103706719B (en) | 2016-03-02 |
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Address after: 102200 No. 1 Li Xiang Road, Changping District science and Technology Park, Beijing Patentee after: CHINA AEROSPACE BEIJING HANGKE ENGINE CONTROL SYSTEM TECHNOLOGY Co.,Ltd. Address before: 102200 No. 1 Li Xiang Road, Changping District science and Technology Park, Beijing Patentee before: BEIJING HANGKE ENGINE CONTROL SYSTEM SCIENCE & TECHNOLOGY Co.,Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160302 Termination date: 20191210 |