CN107695237B - One kind receiving pressure device for the nut necking of aero-engine tube assembly pipe end - Google Patents
One kind receiving pressure device for the nut necking of aero-engine tube assembly pipe end Download PDFInfo
- Publication number
- CN107695237B CN107695237B CN201710997661.XA CN201710997661A CN107695237B CN 107695237 B CN107695237 B CN 107695237B CN 201710997661 A CN201710997661 A CN 201710997661A CN 107695237 B CN107695237 B CN 107695237B
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- China
- Prior art keywords
- pull rod
- guide
- pipe end
- block
- tube assembly
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/24—Making other particular articles nuts or like thread-engaging members
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
- B21D39/046—Connecting tubes to tube-like fittings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D53/00—Making other particular articles
- B21D53/84—Making other particular articles other parts for engines, e.g. connecting-rods
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
The invention discloses one kind to receive pressure device for the nut necking of aero-engine tube assembly pipe end, and constituting includes cope plate, lower template, the first commutation switching mechanism, the second commutation switching mechanism, first back-moving spring, second back-moving spring and guiding mechanism；The first commutation switching mechanism includes the upper voussoir for being fixed on cope plate, pull rod, the lower wedge block being mounted on pull rod, is fixed on the supporting block for being used to support guiding lower wedge block in lower template and the holder block for installing pull rod；The second commutation switching mechanism includes the connecting plate that pull rod pulls, the shape for hat voussoir, the positioning plate being fixed in lower template, the guide-rail plate, the extrusion die being arranged on guide-rail plate, the positioning core axle and guide support block that are mounted on guide-rail plate that are fixedly connected with positioning plate that are fixedly connected with connecting plate.The present invention is the receipts pressure device of horizontal type structure, and the necking of pipe end nut can carry out after conical surface pipe fitting is brazed removing welding agent with conduit, can avoid the reduction of tube assembly sealing performance and surfacecti proteon performance.
Description
Technical field
The present invention relates to the tube assembly processing technologies in aero-engine, and in particular to one kind is for processing aero-engine
On tube assembly pipe end nut necking apparatus.
Background technique
The metal tubes of many conveying different fluid medium different sizes are disposed with outside the casing of aero-engine, due to boat
Empty engine installation space is narrow, and must not have any sundries that is scattered inside and outside assembled aero-engine, is navigating in order to prevent
Conduit, pipe fitting, the pipe end nut that pipeline is constituted during empty engine assembling lose, usually by conduit, pipe fitting and pipe end
Nut is first assembled into one.The outer metal tubes arranged of aero-engine casing, pipe fitting are generally conical surface pipe fitting, pass through
The horn mouth conical surface of conical surface pipe fitting is connect by pipe end nut with the sealing joint on wheel chamber casing.The pipe end nut is usually adopted
With the pipe end nut of tail end necking, the tail end of pipe end nut is pressed into being formed at the neck of conical surface pipe fitting by molding device
Necking makes pipe end nut link together with conical surface pipe fitting by necking, pipe end nut can opposing tapered surfaces pipe fitting freely turn
It is dynamic, it connect the horn mouth conical surface of conical surface pipe fitting with the sealing joint on wheel chamber casing.The other end of pipe fitting passes through soldering
It is connect with conduit.
Tube assembly pipe end nut tail end is pressed into the molding device of formation necking at the neck of conical surface pipe fitting, existing skill
Art is all to receive pressure device using vertical necking, and the structure for receiving pressure device in view of vertical necking limits, the group of tube assembly (see Fig. 4-1)
Dress processing, the prior art be all the neck of the tail end of pipe end nut indentation conical surface pipe fitting is first formed into necking, then by conduit with
Pipe fitting is brazed together, later by removal soldering medicament, oxide scale layer in entire tube assembly merging merging lye, acid solution.It is existing
There is the insufficient place of technology tube assembly processing technology, is placed in lye, removal soldering medicament in acid solution, oxide scale layer in tube assembly
In the process, while the cooperation conical surface luminosity of pipe end nut overlay coating and pipe fitting can be destroyed, greatly reduces tube assembly surface
Sealing performance and protective performance, the assembly of engine is used and the service life generates extreme influence.To solve this problem, weight is needed
Newly manufacture and design a kind of new structure necking receipts pressure device, pipe end nut throat processing method is adjusted, by pipe end nut
Necking manufacturing procedure adjusts after being brazed corrosion process, broken to avoid the corrosion to pipe end nut surface and the pipe fitting conical surface
It is bad.
Summary of the invention
In view of the deficienciess of the prior art, the purpose of the present invention is intended to provide a kind of sending out for processing aviation for new construction
Pressure device is received in motivation tube assembly pipe end nut necking, is corroded the adjustment of pipe end nut necking manufacturing procedure in brazing flux with realizing
After process, the sealing performance and surfacecti proteon performance that reduce tube assembly are avoided.
Pressure device is received provided by the present invention for aero-engine tube assembly pipe end nut necking, composition includes and molding
The cope plate of machine molding head connection, the lower template being placed on die work platform, the first commutation switching mechanism, the second commutation interpreter
Structure, first back-moving spring, second back-moving spring and guiding mechanism；The composition of the first commutation switching mechanism includes being fixed on
The upper voussoir of cope plate, is mounted on the lower wedge block that pull rod is driven to move axially on pull rod, is fixed in lower template for branch pull rod
The supporting block of support guiding lower wedge block, and be fixed in lower template for installing the holder block of pull rod, upper voussoir and lower wedge block are logical
It crosses wedge surface cooperation and constitutes voussoir transmission, pull rod is axially displaceably mounted in holder block；The second commutation switching mechanism
Composition include be mounted on pull rod pull rod pulling under move connecting plate, be fixedly connected with connecting plate shape for hat voussoir, consolidate
The positioning plate that is scheduled in lower template, the guide-rail plate being fixedly connected with positioning plate are arranged on guide-rail plate and shape for hat by guideway
Extrusion die that voussoir matches is mounted on the supercentral positioning core axle of guide-rail plate and is axially slidably mounted on positioning core axle
It is used to support the guide support block of guiding extrusion die, the wedge surface of the shape for hat driving voussoir is the cone positioned at conical bore in the middle part of crown
Face, the guide support face of the guide support block are male cone (strobilus masculinus), and the positioning core axle design has installation pipe end nut to be processed
Mounting structure, the extrusion die are cone cylinder structure, and the extruding module composition for the extrusion lug having, extrusion die are designed by 6~10 pieces
The outer mold surface of block is the conical surface to match with the shape for hat voussoir conical surface, inner mold face be with the matched conical surface of guide support block male cone (strobilus masculinus),
The extrusion lug all squeezed in module forms the extrusion mouth to match with pipe end nut necking to be processed；First back-moving spring set
It sets on pull rod, one end acts on holder block, and the other end acts on connecting plate；Second back-moving spring is mounted on guide-rail plate
Spring guide groove in, one end acts on guide-rail plate, and the other end acts on guide support block bottom end；The guiding mechanism is by being located at
Pull rod two sides are fixed on the guide sleeve of cope plate or lower template and are fixed on the guide post composition of lower template or cope plate.
In order to which the purpose of the present invention is better achieved, the present invention can also further take following technical measures.Following items
Technical measures can individually be taken, and can also combine and take, or even take together.
In above-mentioned technical proposal of the invention, the holder block, which is preferentially arranged in lower template, to lead upper voussoir
To the position of limit, holder block carries out guide and limit to upper voussoir by vertical plane.The holder block is preferably provided a side pressure
Block carries out guide and limit to upper voussoir.Side pressing block can select the better material production of wearability, by side pressing block to upper voussoir
Guide and limit is carried out, manufacturing cost can be reduced, improve the service life of holder block.
In above-mentioned technical proposal of the invention, the supporting block is preferentially preferably provided a guide pad and props up lower wedge block
Support guiding.Guide pad can select the better material production of wearability, be oriented to, can be reduced to upper voussoir by guide pad
Manufacturing cost improves the service life of supporting block.
In above-mentioned technical proposal of the invention, lower wedge block can drive pull rod to move by the fastening screw nut being fixed on pull rod
It is dynamic；Pull rod can also be driven mobile by other structures on pull rod, such as shoulder structure.The pull rod preferentially passes through its shoulder and pulls
Connecting plate is mobile；Connecting plate can also be pulled mobile by his structure being fixed on pull rod, such as be fixed on pull rod and tight spiral shell
Mother etc..
In above-mentioned technical proposal of the invention, the mounting structure that the positioning core axle installs pipe end nut to be processed is preferential
Using with the matched seam allowance of pipe end nut profile surface.It can certainly take other mounting structures that pipe end nut to be processed is installed, such as
Screw thread pair mounting structure.
In above-mentioned technical proposal of the invention, the upper voussoir preferentially uses middle part design to have card to hold having for pull rod
The upper voussoir of U-typed slot, upper voussoir drive lower wedge block by the wedge surface on inverted " u " type groove both sides.
In above-mentioned technical proposal of the invention, in order to further increase the stability for receiving pressure device operation, pressure device is received
Settable stabilizing mechanism, stabilizing mechanism may be designed to, including be fixed in lower template two blocks, be fixed at two gears
Two stabiliser bars on block and the structure hole being slidably matched on connecting plate with stabiliser bar, the position of two blocks be located at holder block with
Pull rod two sides between positioning plate.When holder block rigidity is good enough with intensity, and can be not provided with keeping off apart from less big with positioning plate
Stabiliser bar is set up directly in holder block by block.The position of two stabiliser bars is preferably the plane that is constituted of two stabiliser bars for level
Face and be located at pull rod above.
Pressure device is received provided by the present invention for aero-engine tube assembly pipe end nut necking, is the pipe end of horizontal type structure
Pressure device is received in nut necking, is formed in the operation of necking by the indentation conical surface pipe fitting necking down of pipe end nut tail end, only wait contract
Mouthful pipe end nut be located in reducing device, tube assembly other parts are respectively positioned on that reducing device is external, i.e. the pipe end spiral shell of shrinkage waiting open
Mother is mounted on device positioning core axle positioning spigot, and pipe end nut necking section is opposite with the extrusion mouth of extrusion die, conical surface pipe fitting and
Conduit is located at except device.Therefore receipts pressure device of the invention is used, can be first brazed conduit and pipe fitting, with removing medicine
Agent removes the welding agent for splashing stain in tube assembly, is polished the pipe fitting horn mouth conical surface, makes up to the cooperation of requirement
Luminosity and then molding assembling is carried out to pipe end nut and conical surface pipe fitting.It overcomes and is pressed using the vertical receipts of the prior art
It sets and tube assembly is assembled, molding assembling first can only be carried out to pipe end nut and pipe fitting, then pipe fitting and conduit are carried out
Soldering finally is removed to splash stain and be brazed in tube assembly caused by the technique of medicament and be matched to pipe end nut overlay coating and pipe fitting
Conical surface luminosity corrosion failure is closed, and due to having had connected pipe end nut on pipe fitting, it cannot be again to conical surface pipe fitting loudspeaker prostomum
The problems such as face is polished, and is reduced the sealing performance of the pipe fitting horn mouth conical surface, is reduced the protective performance on tube assembly surface.
Tube assembly is assembled using receipts pressure device of the invention, by pipe end nut throat processing method by the prior art
First molding necking after removal soldering medicament be adjusted to first to remove soldering medicament rear mold compression port, ensure that the surface of tube assembly is anti-
Performance and sealing performance are protected, assembly use and service life to engine is eliminated and adversely affects.
Detailed description of the invention
Attached drawing 1 is schematic diagram of main cross-sectional structure of the present invention for receiving pressure device.
Attached drawing 2 be in attached drawing 1 A-A to schematic cross-sectional view.
Attached drawing 3-1 is the schematic diagram of main cross-sectional structure for receiving extrusion die 21 described in pressure device.
Attached drawing 3-2 be in attached drawing 3-1 A to partial structural diagram.
Attached drawing 3-3 be in attached drawing 3-1 B to structural schematic diagram.
Attached drawing 4-1 is tube assembly structural schematic diagram.
Attached drawing 4-2 is part F enlarged structure schematic diagram in attached drawing 4-1.
Each shown by reference numeral mark object is respectively as follows: 1- lower template in above-mentioned attached drawing, and 2- guide pad, 3- lower wedge block, 4- is simultaneously
Tight nut, 5- pull rod, 6- limited post, 7- side pressing block, 8- hexagon socket head cap screw, the upper voussoir of 9-, 10- positioning pin, 11- cope plate, 12-
Hexagon socket head cap screw, 13- guide sleeve, 14- guide post, 15- holder block, 16- first back-moving spring, 17- connecting plate, 18- positioning plate,
19- hexagon socket head cap screw, 20- guide-rail plate, 21- extrusion die, wherein 21-1 to 21-8 is 8 pieces of extruding modules for constituting extrusion die；22-
Shape for hat voussoir, 23- second back-moving spring, 24- positioning core axle, 25- guide support block, 26- positioning pin, 27- positioning pin, 28- branch
Bracer, 29- block, 30- stabiliser bar, 31- stiffening plate, 32- conical surface pipe fitting, 33- pipe end nut, 34- conduit.
Specific embodiment
The embodiment of the present invention is provided with reference to the accompanying drawing, and present invention progress is further specifically retouched by embodiment
It states.It is necessarily pointed out that embodiment is served only for, the invention will be further described, should not be understood as protecting the present invention
The limitation of range, the person skilled in the art in the field can be made according to the content of aforementioned present invention it is some it is nonessential improvement and
Adjustment is implemented, but such implementation should still fall within protection scope of the present invention.
Involved directional terminology up, down, left, right, before and after in embodiment is based in face of side shown in the drawings
Position.
Embodiment 1
Pressure device is received for the nut necking of aero-engine tube assembly pipe end described in the present embodiment, assembles object as aviation hair
Tube assembly in motivation, as shown in attached drawing 4-1 and 4-2, the structure for receiving pressure device is as shown in attached drawing 1,2,3-1 and 3-2, structure
At mainly include with moulding press molding head couple cope plate 11, be placed on die work platform lower template 1, first commutation conversion
Mechanism, the second commutation switching mechanism, first back-moving spring 16, second back-moving spring 23, guiding mechanism and stabilizing mechanism；Described
The composition of one commutation switching mechanism includes that be fixed on cope plate be the upper voussoir 9 of unilateral wedge surface structure, pull rod 5, is mounted on drawing
On bar with the lower wedge block 3 of the matched unilateral wedge surface structure of upper voussoir, be fixed on and be used to support the branch of guiding lower wedge block in lower template
Bracer 28, and be fixed in lower template for installing the holder block 15 of pull rod, its middle part design card of the upper voussoir holds pull rod
Inverted " u " type groove, upper voussoir drives lower wedge block by the wedge surface on inverted " u " type groove both sides；The pull rod is axially displaceably installed
In holder block, pull rod is mobile by 4 driving axial of fastening screw nut being fixed on pull rod by lower wedge block 3；The holder block is set
The position that can carry out guide and limit to upper voussoir in lower template is set, and carries out the vertical plane one of guide and limit to upper voussoir at it
Side is provided with the side pressing block 7 made by wear-resistant material, carries out guide and limit to upper voussoir by side pressing block；The supporting block 28 exists
The guide pad 2 made by wear-resistant material is arranged in the upper side of its support guide lower wedge block, and supporting block is by guide pad to hyposphene
Block is supported guiding.
The composition of the second commutation switching mechanism includes being mounted on pull rod 5 to implement to draw to it by the shoulder on pull rod
It is dynamic connecting plate 17, the shape for hat voussoir 22 being fixedly connected with connecting plate, the positioning plate 18 being fixed in lower template, solid with positioning plate
Surely the extrusion die 21 to match on guide-rail plate with shape for hat voussoir is arranged in by guideway, is mounted on and leads for the guide-rail plate 20 that connects
It positioning core axle 24 in rail plate center mounting hole and is axially slidably mounted on positioning core axle and is used to support guiding extrusion die
Guide support block 25, the wedge surface of the shape for hat voussoir is the conical surface positioned at conical bore in the middle part of crown, the guide support block
Guide support face is outer conical surface, and the positioning core axle design has the installation seam allowance for installing pipe end nut to be processed, the extruding
Mould is cone cylinder structure, and the extruding module composition for the extrusion lug having is designed by 8 pieces, and the outer mold surface for squeezing module is and shape for hat voussoir
The outer conical surface that internal conical surface matches, inner mold face are to match internal conical surface, whole extrusion dies with guide support block outer conical surface
Extrusion lug on block forms the extrusion mouth to match with pipe end nut necking to be processed；First back-moving spring is nested in pull rod
On, one end acts on holder block, and the other end acts on connecting plate；Second back-moving spring is mounted on the spring on guide-rail plate and leads
Into slot, one end acts on guide-rail plate, and the other end acts on guide support block bottom end；The guiding mechanism is by being located at pull rod two sides
It is fixed on the guide sleeve 13 of cope plate and is fixed on the composition of guide post 14 of lower template.The composition of the stabilizing mechanism includes being located at
Two blocks 29 that are fixed in lower template between holder block 15 and positioning plate 18 in pull rod two sides are fixed at two blocks
On two stabiliser bars 30 and the structure hole that is slidably matched on connecting plate 17 with stabiliser bar, plane where two stabiliser bars, which is located at, draws
Above bar.
Claims (10)
1. one kind receives pressure device for the nut necking of aero-engine tube assembly pipe end, it is characterised in that including being molded with moulding press
The cope plate (11) of head connection, the lower template (1) being placed on die work platform, the first commutation switching mechanism, the second commutation conversion
Mechanism, first back-moving spring (16), second back-moving spring (23) and guiding mechanism；The composition packet of the first commutation switching mechanism
It includes, is fixed on the upper voussoir (9) of cope plate, pull rod (5), is mounted on the lower wedge block (3) that pull rod is driven to move axially on pull rod, is solid
It is scheduled on the supporting block (28) for being used to support guiding lower wedge block in lower template, and is fixed in lower template for installing the branch of pull rod
The wedge surface cooperation of saddle (15), the wedge surface and lower wedge block of upper voussoir constitutes voussoir transmission, and pull rod is axially displaceably mounted on
In holder block；The composition of the second commutation switching mechanism includes being mounted on pull rod to pull mobile connecting plate by pull rod
(17), the shape for hat voussoir (22) that is fixedly connected with connecting plate, the positioning plate (18) being fixed in lower template, with positioning plate is fixed connects
The guide-rail plate (20) that connects is arranged in the extrusion die to match on guide-rail plate with shape for hat voussoir (21) by guideway, is mounted on and leads
It positioning core axle (24) at rail plate center and is axially slidably mounted on and is used to support leading for guiding extrusion die on positioning core axle
To supporting block (25), the wedge surface of the shape for hat voussoir is the conical surface positioned at conical bore in the middle part of crown, and the guide support block is led
It is male cone (strobilus masculinus) to supporting surface, the positioning core axle design has the mounting structure for installing pipe end nut to be processed, and the extrusion die is
Cone cylinder structure designs the extruding module composition for the extrusion lug having by 6~10 pieces, and the outer mold surface for squeezing module is and shape for hat voussoir
The conical surface that the conical surface matches, inner mold face are with the matched conical surface of guide support block male cone (strobilus masculinus), and the extruding all squeezed in module is convex
Block forms the extrusion mouth to match with pipe end nut necking to be processed；First back-moving spring is nested on pull rod, and one end acts on
Holder block, the other end act on connecting plate；Second back-moving spring is mounted in the spring guide groove on guide-rail plate, and one end is made
For guide-rail plate, the other end acts on guide support block bottom end；The guiding mechanism is fixed on cope plate by being located at pull rod two sides
Or lower template guide sleeve (13) and be fixed on the guide post (14) of lower template or cope plate and constitute.
2. according to claim 1 receive pressure device for the nut necking of aero-engine tube assembly pipe end, it is characterised in that
Holder block (15) setting can be to the position of upper voussoir (9) guide and limit on lower template (1).
3. according to claim 2 receive pressure device for the nut necking of aero-engine tube assembly pipe end, it is characterised in that
The holder block passes through the side pressing block (7) being arranged on its guide and limit side and carries out guide and limit to upper voussoir.
4. according to claim 1 receive pressure device for the nut necking of aero-engine tube assembly pipe end, it is characterised in that
The supporting block (28) passes through the guide pad (2) being arranged on one side of its support guide and is supported guiding to lower wedge block (3).
5. according to claim 1 receive pressure device for the nut necking of aero-engine tube assembly pipe end, it is characterised in that
Lower wedge block drives pull rod mobile by the fastening screw nut (4) being fixed on pull rod.
6. according to claim 1 receive pressure device for the nut necking of aero-engine tube assembly pipe end, it is characterised in that
The pull rod pulls connecting plate (17) mobile by its shoulder.
7. according to claim 1 receive pressure device for the nut necking of aero-engine tube assembly pipe end, it is characterised in that
The mounting structure that the positioning core axle (24) installs pipe end nut to be processed is and the matched seam allowance of pipe end nut profile surface.
8. according to claim 1 receive pressure device for the nut necking of aero-engine tube assembly pipe end, it is characterised in that
The upper voussoir designs the inverted " u " type groove that card holds pull rod for middle part.
9. pressure device is received for the nut necking of aero-engine tube assembly pipe end to described in one of 8 according to claim 1, it is special
Sign is that receiving pressure device is provided with stabilizing mechanism, and constituting includes that two blocks (29) being fixed in lower template, fixation are set
It sets two stabiliser bars (30) on two blocks and is located at the structure hole being slidably matched on connecting plate (17) with stabiliser bar, two blocks
Position pull rod two sides between holder block and positioning plate.
10. according to claim 9 receive pressure device for the nut necking of aero-engine tube assembly pipe end, it is characterised in that
The position of two stabiliser bars is that the plane that it is constituted is horizontal plane and is located above pull rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710997661.XA CN107695237B (en) | 2017-10-23 | 2017-10-23 | One kind receiving pressure device for the nut necking of aero-engine tube assembly pipe end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710997661.XA CN107695237B (en) | 2017-10-23 | 2017-10-23 | One kind receiving pressure device for the nut necking of aero-engine tube assembly pipe end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107695237A CN107695237A (en) | 2018-02-16 |
| CN107695237B true CN107695237B (en) | 2019-04-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710997661.XA Active CN107695237B (en) | 2017-10-23 | 2017-10-23 | One kind receiving pressure device for the nut necking of aero-engine tube assembly pipe end |
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| Country | Link |
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| CN (1) | CN107695237B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109482751B (en) * | 2018-09-07 | 2022-05-10 | 邯郸市康迈液压器材有限公司 | Split side-opening type shrinkage and expansion cold connecting equipment for hose and hose assembly and operation method |
| CN111167957B (en) * | 2018-11-12 | 2021-08-13 | 江门市利华实业有限公司 | Full-automatic punching press nut device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06114469A (en) * | 1991-10-23 | 1994-04-26 | Manbin:Kk | Method and device for fixing joiner to metallic sheet |
| US5452599A (en) * | 1993-12-14 | 1995-09-26 | Motor Wheel Corporation | Method and apparatus for producing vehicle wheel rims |
| CN204247864U (en) * | 2014-12-03 | 2015-04-08 | 西安亚太航空技术有限公司 | The closing device of self-locking nut |
| CN205436786U (en) * | 2015-12-12 | 2016-08-10 | 中国航空工业标准件制造有限责任公司 | Opening -shrinkage die |
| CN205436886U (en) * | 2016-02-19 | 2016-08-10 | 苏州航天紧固件有限公司 | Automatic close device of self -locking nut |
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- 2017-10-23 CN CN201710997661.XA patent/CN107695237B/en active Active
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| CN107695237A (en) | 2018-02-16 |
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