CN106637061A - General type protecting device for local ion nitriding of precise feedback rod - Google Patents

General type protecting device for local ion nitriding of precise feedback rod Download PDF

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Publication number
CN106637061A
CN106637061A CN201510728221.5A CN201510728221A CN106637061A CN 106637061 A CN106637061 A CN 106637061A CN 201510728221 A CN201510728221 A CN 201510728221A CN 106637061 A CN106637061 A CN 106637061A
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CN
China
Prior art keywords
feedback rod
local ion
ion nitriding
fixed mount
adjusting bracket
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201510728221.5A
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Chinese (zh)
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CN106637061B (en
Inventor
李亮
杨增辉
徐广平
白雪玉
熊浩
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING EXPERIMENTAL PLANT
China Academy of Launch Vehicle Technology CALT
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BEIJING EXPERIMENTAL PLANT
China Academy of Launch Vehicle Technology CALT
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Priority to CN201510728221.5A priority Critical patent/CN106637061B/en
Publication of CN106637061A publication Critical patent/CN106637061A/en
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/36—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases using ionised gases, e.g. ionitriding
    • C23C8/38—Treatment of ferrous surfaces

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

The invention relates to a protecting device for local ion nitriding, in particular to a general type protecting device for local ion nitriding of a precise feedback rod. The general type protecting device comprises a fixed frame, an adjusting frame and a sleeve, wherein the adjusting frame is fixed to the lower end of the fixed frame, and the sleeve is located on the outer sides of the fixed frame and adjusting frame. The fixed frame comprises vertically-concentric disks. A plurality of concentric positioning holes are formed in the vertically-concentric disks. The general type protecting device for local ion nitriding of the precise feedback rod meets the requirements for the quality and efficiency of product batch production and can serve as a necessary working procedure for feedback rod local ion nitriding protection; and mounting and dismounting are convenient, operating is easy, and the quality is reliable.

Description

The universal protection device of accurate feedback rod local ion nitriding
Technical field
The present invention relates to a kind of local ion nitriding protection device, and in particular to a kind of accurate feedback rod local from The universal protection device of sub- nitriding.
Background technology
Include servo valve in all weapons, vehicle series product at present, and feedback rod is the pass weight of servo valve Part, its material adopts 3J1 elastic alloys.Because the design performance of part requires that feedback rod integrally has higher bullet Property simultaneously, bulb position have higher intensity and wearability, it is therefore desirable to local ion is carried out to part and is oozed Nitrogen process.
Because product servo feedback rod part category is various, appearance and size is different.Due to requiring feedback rod part Bulb position has higher wearability simultaneously, and part has integrally required preferable rigidity, it is therefore desirable to anti- Feedback bar part carries out local ion Nitrizing Treatment.Part is not allow for nitrogen during glow discharge nitriding, at neck Change layer, it is higher that frock dimension precision requirement is exposed at bulb position.Existing frock is mainly adopted and added in frock bottom Plus size is exposed at parallels control part bulb position, but because nitriding part category is excessive, frock is excessively numerous and diverse, And this method is difficult the handling of part, it is easily caused that frock lid is not tight, partial aperture is excessive in nitriding process Middle temperature is too high, so as to there is the overheated problem scrapped of product.
Because design requirement feedback rod part only carries out glow discharge nitriding process to bulb position, and do not permit at neck Permitted have nitration case, because feedback rod part belongs to the higher accurate class part of intensity, appearance and size is less, is difficult Operation and protection.Once protection is not in place, will there is nitration case in feedback rod neck, can directly influence whole The rigidity and elastic index of individual part, so as to there is the problem that part is overproof, scrap.In view of the above circumstances, Our comprehensive original feedback rod local ion nitriding guard methods and technological equipment, design a set of suitable Multiple model feedback rod local ion nitriding protection devices, had both met product quality requirement, improve product Production efficiency, has adapted to the multiple models batch of my unit and has produced requirement again.
The content of the invention
The technical problem to be solved in the present invention is to provide a kind of universal protection of accurate feedback rod local ion nitriding Device, meets the requirement of product batch production quality and efficiency, can protect as the nitriding of feedback rod local ion Indispensable operation, easy to loading and unloading, simple to operate, reliable in quality.
To solve above-mentioned technical problem, a kind of accurate feedback rod local ion nitriding of the present invention is universal to protect dress Put, the device include fixed mount, be fixed on the adjusting bracket of fixed mount lower end, outside fixed mount, adjusting bracket The sleeve of side；Described fixed mount includes disk concentric up and down, and up and down concentric disk has some concentric Location hole.
Fixed mount, adjusting bracket and bush material are common 0Cr17Ni4Cu4Nb precipitation-hardening stainless steels.
Positioning bore dia 0.1mm bigger than the bulb diameter of feedback rod 4.
Location hole is circle equidistantly distributed by circle disk center.
Adjusting bracket is threadably secured in fixed mount center.
The present invention Advantageous Effects be：Using the special local glow discharge nitriding protection device of the set feedback rod, Ensure that non-nitriding face thoroughly isolates, non-nitriding face at feedback rod bulb nitriding face and neck can be accurately controlled Boundary, stable and reliable product quality；The mentality of designing of feedback rod local ion nitriding protection device is suitable many The use of the different size feedback rod part of individual product, can so improve the practicality of technological equipment and general Property；Part tooling considers Long-Time Service stability, the frock installing/dismounting from selection and exterior design Easy to operate, time-saving energy-saving is adapted to batch machining；By to part glow discharge nitriding process and principle analysis, On the premise of ensuring product quality stability, the useful load of frock is improved to greatest extent, be more suitable for part The use of batch production；The mentality of designing of frock has certain representativeness, may apply to other similar thin In the local ion nitriding protection of long component of rod category, a set of series, complete, ripe elongate rod can be formed Class parts locally glow discharge nitriding protection device；The design of the present invention takes into full account high External Shape feature and function Require, the just right advantage for having played protection device, the local ion for being adapted to be similar to long component of rod category is oozed The protection of nitrogen process, the material of selection can operationally have higher intensity, it is ensured that frock long-time makes With being unlikely to deform, while having preferable corrosion resistance, it is ensured that the uniformity of product quality, the frock tool There is higher useful load, improve the production efficiency of product, adapted to the needs of product batch production.
Description of the drawings
Fig. 1 is the universal protection device structural representation of accurate feedback rod local ion nitriding of the present invention；
Fig. 2 is fixed mount upper surface schematic diagram.
In figure：1-fixed mount；2-sleeve；3-adjusting bracket；4-feedback rod.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.
As shown in figure 1, the universal protection device of accurate feedback rod local ion nitriding, the device includes fixing Frame 1, the adjusting bracket 3 for being screwed on fixed mount lower end, the sleeve on the outside of fixed mount 1, adjusting bracket 3 2。
Fixed mount 1 includes disk concentric up and down, and two disks are connected by the connecting rod of circle centre position, its tune Section frame 3 is threadably secured in the middle of connecting rod.
As shown in Fig. 2 fixed mount disk concentric about 1 has some concentric location holes.Location hole is preferred It is circle equidistantly distributed by circle disk center.In the design of upper and lower end face location hole, in order that feedback rod exists The state vertically piled up is constantly in whole glow discharge nitriding technical process, part deformation is reduced, it is therefore desirable to Ensure upper and lower end face location hole axiality.The mode blocked is relied primarily on because glow discharge nitriding prevents from nitrogenizing, because This our Design Orientation bore dias 0.1mm bigger than the bulb diameter of feedback rod 4 in the processing of location hole, so Both being accurately positioned for part had been can ensure that, the purpose that resistance is oozed had been also played.
Fixed mount 1, adjusting bracket 3 and the material of sleeve 2 are common 0Cr17Ni4Cu4Nb precipitation-hardening stainless steels.
During work, fixed mount lower end is faced up, feedback rod part is inserted from the circular hole of fixed mount lower surface Enter, insert out from the location hole of upper surface, feedback rod part is all attached on fixed mount according to above-mentioned requirements, Notice that as far as possible vertically assembling reduces the friction of part and hole wall.Then, by adjusting bracket alignment fixed mount screw thread rotation Enter, be screwed to till adjusting bracket upper surface contacts with feedback rod bottom.Inverted fixed mount is turned, instead Upward, rotation adjusting bracket exposes size to feedback bar bulb to the bulb of feedback rod 4, until bulb bottom surface and fixed mount Till upper surface gap is in 1～2mm.Note, it is unsuitable too fast when adjusting bracket is rotated, check feedback Whether ride out is consistent for bar bulb.Finally, it is slowly that the fixed mount for assembling-adjusting bracket assembled tool is vertical In putting sleeve into, adhere to whether installing from frock side, it is ensured that sided seamless gap.Than conventional feedback rod Local ion nitriding guard method, adopt screw-type adjusting bracket can with it is convenient, be accurately controlled part ball Head exposes size, more makes operating personnel easily operated, the stability of improve product quality, while improve Production efficiency, so as to reduce the labour intensity of operator.After glow discharge nitriding technical process terminates, only need by Fixed mount-adjusting bracket tooling combination takes out from sleeve, and being inverted frock makes feedback rod bulb straight down, unscrews Adjusting bracket is simultaneously removed, and feedback rod part is taken out one by one from fixed mount.Whole part unloading process is simple Convenient operation, relatively conventional parallels formula guard method is not in that part inclination is dropped, parallels is skidded off Problem.

Claims (5)

1. the universal protection device of a kind of accurate feedback rod local ion nitriding, it is characterised in that：The device bag Include fixed mount (1), be fixed on the adjusting bracket (3) of fixed mount lower end, positioned at fixed mount (1), adjusting bracket (3) The sleeve (2) in outside；Described fixed mount (1) includes disk concentric up and down, and up and down concentric disk has Some concentric location holes.
2. the universal protection device of a kind of accurate feedback rod local ion nitriding according to claim 1, It is characterized in that：Fixed mount (1), adjusting bracket (3) and sleeve (2) material are common 0Cr17Ni4Cu4Nb Precipitation-hardening stainless steel.
3. the universal protection device of a kind of accurate feedback rod local ion nitriding according to claim 2, It is characterized in that：Positioning bore dia 0.1mm bigger than the bulb diameter of feedback rod 4.
4. the universal protection device of a kind of accurate feedback rod local ion nitriding according to claim 3, It is characterized in that：Location hole is circle equidistantly distributed by circle disk center.
5. the universal protection device of a kind of accurate feedback rod local ion nitriding according to claim 4, It is characterized in that：Adjusting bracket (3) is threadably secured in fixed mount (1) center.
CN201510728221.5A 2015-10-30 2015-10-30 The accurate universal protective device of feedback rod local ion nitriding Active CN106637061B (en)

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CN201510728221.5A CN106637061B (en) 2015-10-30 2015-10-30 The accurate universal protective device of feedback rod local ion nitriding

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Application Number Priority Date Filing Date Title
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CN106637061B CN106637061B (en) 2018-11-30

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114107883A (en) * 2021-11-29 2022-03-01 上海航天设备制造总厂有限公司 Local ion nitriding method for inner cavity of precipitation hardening stainless steel annular part

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2741992Y (en) * 2004-09-29 2005-11-23 天津市天锻压力机有限公司 Material loading frame for part soft nitriding treatment
CN201588828U (en) * 2009-10-14 2010-09-22 无锡市华通液压气动制造有限公司 Feedback rod of electro-liquid servo valve
CN101979702A (en) * 2010-11-29 2011-02-23 大连名阳实业有限公司 Gear local ion nitriding tool
CN103834912A (en) * 2012-11-23 2014-06-04 大连创新齿轮箱制造有限公司 Anti-carbon black tool for gear nitridation
CN204198246U (en) * 2014-10-16 2015-03-11 重庆电子工程职业学院 A kind of nitriding suspender of spindle-type workpiece
CN204434052U (en) * 2015-01-28 2015-07-01 资阳晨工电器有限公司 A kind of nitrogenize frame
CN204474743U (en) * 2014-12-30 2015-07-15 天津华建天恒传动有限责任公司 Frock hung by sun and planet gear thermal treatment dress

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2741992Y (en) * 2004-09-29 2005-11-23 天津市天锻压力机有限公司 Material loading frame for part soft nitriding treatment
CN201588828U (en) * 2009-10-14 2010-09-22 无锡市华通液压气动制造有限公司 Feedback rod of electro-liquid servo valve
CN101979702A (en) * 2010-11-29 2011-02-23 大连名阳实业有限公司 Gear local ion nitriding tool
CN103834912A (en) * 2012-11-23 2014-06-04 大连创新齿轮箱制造有限公司 Anti-carbon black tool for gear nitridation
CN204198246U (en) * 2014-10-16 2015-03-11 重庆电子工程职业学院 A kind of nitriding suspender of spindle-type workpiece
CN204474743U (en) * 2014-12-30 2015-07-15 天津华建天恒传动有限责任公司 Frock hung by sun and planet gear thermal treatment dress
CN204434052U (en) * 2015-01-28 2015-07-01 资阳晨工电器有限公司 A kind of nitrogenize frame

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114107883A (en) * 2021-11-29 2022-03-01 上海航天设备制造总厂有限公司 Local ion nitriding method for inner cavity of precipitation hardening stainless steel annular part
CN114107883B (en) * 2021-11-29 2024-01-12 上海航天设备制造总厂有限公司 Local ion nitriding method for inner cavity of precipitation hardening stainless steel annular part

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