CN106346418B - Spring assembly assembly tooling and its spring deflection holder - Google Patents
Spring assembly assembly tooling and its spring deflection holder Download PDFInfo
- Publication number
- CN106346418B CN106346418B CN201610892957.0A CN201610892957A CN106346418B CN 106346418 B CN106346418 B CN 106346418B CN 201610892957 A CN201610892957 A CN 201610892957A CN 106346418 B CN106346418 B CN 106346418B
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- Prior art keywords
- spring
- edge
- assembly
- parts
- holder
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Links
- 238000004826 seaming Methods 0.000 claims description 17
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 8
- 230000006835 compression Effects 0.000 description 7
- 238000007906 compression Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 4
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 241000237858 Gastropoda Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/14—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
- B25B27/30—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs
- B25B27/302—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs
- B25B27/304—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same positioning or withdrawing springs, e.g. coil or leaf springs coil springs other than torsion coil springs by compressing coil springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
- Springs (AREA)
Abstract
The present invention relates to a kind of spring assembly assembly tooling and its spring deflection holders, spring assembly assembly tooling uses spring deflection holder to keep deformation after making camber of spring by the effect for the head that exerts a force, wherein spring deflection holder includes holder ontology, be provided on holder ontology for for spring assembly along being packed into perpendicular to camber of spring direction and what is removed allows bit port, the upper and lower side of bit port is allowed to be respectively arranged with the upper spring seat of spring assembly and the cooperation of lower spring cup block to prevent upper gear edge and the lower block edge of spring reset, thus spring can be acted on after deformation by the block on upper gear edge and lower block edge to keep the deflection of spring, and then facilitate the assembly of spring assembly, improve efficiency.
Description
Technical field
The present invention relates to high-voltage switch gear fields, are protected more particularly to a kind of spring assembly assembly tooling and its spring deflection
Gripping member.
Background technology
There are the forms such as tension spring, compression spring, snail wind spring for the spring of indoor vacuum circuit breaker spring operating mechanism at present,
Middle tension spring and compression spring are most widely used, and in each operating position of mechanism, spring must remain specific deflection, because
It needs to be compressed to when spring assembly of this mechanism to a certain degree, to reach the fitted position requirement of spring, for taking compression spring, when assembly
It needs to ensure a certain amount of precompressed compression deformation, and needs the holding of guarantee progress compressive state after compressive deformation, to facilitate bullet
The installation of spring component.
The spring assembly as shown in Fig. 1 to 2 comprising spring 7, upper spring seat 8, lower spring cup 6, spring pull rod 11 and bullet
Spring sleeve 10, wherein upper spring seat 8 and lower spring cup 6 are freely arranged respectively in the both sides up and down of spring 7, and spring pull rod 11 passes through
Square hole on lower spring cup 6 is inserted into from lower spring end in spring 7, and spring spool 10 is worn by the spring spool on upper spring seat
Hole is inserted into from the upper end of spring in spring 7, is provided on upper spring seat 8 for existing for the mounting hole abutting joint on spring spool
When operating mechanism, to the arc shaped groove 81 of the installation axle evacuation on operating mechanism, which can be after spring-compressed again by bullet
Spring sleeve 10 and spring pull rod 11 are inserted into from both ends respectively, are finally mounted in spring operating mechanism, traditional mode is usually
After manpower or machinery will be used to compress spring assembly, it is mounted on operating mechanism by compressed spring assembly, but by
Even if there is smaller deflection in the spring on operating mechanism, still there is larger elastic force, therefore its deflection is not easy to keep,
So that needing to do corresponding adjustment to the compression of spring to the assembly of spring, time-consuming and laborious, efficiency of assembling is low.
Invention content
The purpose of the present invention is to provide a kind of spring assembly assembly toolings, are compressed to spring assembly with solving the prior art
Or deflection the problem of being not easy to keep after stretching.The present invention also aims to provide a kind of spring assembly assembly tooling
Spring deflection holder.
To achieve the above object, the technical solution of spring deflection holder of the present invention is：
Spring deflection holder, including holder ontology, be provided on holder ontology for for spring assembly along hanging down
It is directly packed into camber of spring direction and what is removed allows bit port, the upper and lower side of bit port is allowed to be separately provided for and the spring
The upper spring seat and lower spring cup block of component coordinate to prevent upper gear edge and the lower block edge of the spring reset of spring assembly.
The lower face on upper gear edge is constituted for realizing the aperture periphery block perforated with the spring spool of the upper spring seat
The upper stopping surface of cooperation, the upper surface on lower block edge constitute with upper stopping surface be oppositely arranged for realizing with the lower spring cup
The lower stopping surface of the aperture periphery block cooperation of spring pull rod perforation.
Along being made of two parts, the two parts on upper gear edge and the two parts on lower block edge are set relatively respectively for upper gear edge and lower block
It sets in the left and right sidewall for allowing bit port, wherein being formed along perpendicular to camber of spring direction for keeping away between the two parts on upper gear edge
The upper avoiding space of seaming chuck is allowed, between the two parts on the lower block edge under being formed perpendicular to camber of spring direction for avoiding
The lower avoiding space of pressure head.
Holder ontology is U-shaped along the cross section perpendicular to camber of spring direction, and the two parts on upper gear edge are oppositely arranged on U
On the upper end of type holder ontology two-arm, the two parts on lower block edge are oppositely arranged on the lower end of U-shaped holder ontology two-arm
On, the space of the upper gear edge on holder ontology and lower block between constitute described in allow bit port.
The technical solution of spring assembly assembly tooling of the present invention is：
Spring assembly assembly tooling, including spring deflection holder and for spring assembly apply active force and make it
The force head of stretching or compressive deformation, the spring deflection holder includes holder ontology, is provided on holder ontology
For, along the bit port that allows for being packed into and removing perpendicular to camber of spring direction, the upper and lower side of bit port being allowed to set respectively for spring assembly
Be equipped with for the spring assembly upper spring seat and the cooperation of lower spring cup block to prevent the spring reset of spring assembly
Upper gear edge and lower block edge.
The lower face on upper gear edge is constituted for realizing the aperture periphery block perforated with the spring spool of the upper spring seat
The upper stopping surface of cooperation, the upper surface on lower block edge constitute with upper stopping surface be oppositely arranged for realizing with the lower spring cup
The lower stopping surface of the aperture periphery block cooperation of spring pull rod perforation.
Along being made of two parts, the two parts on upper gear edge and the two parts on lower block edge are set relatively respectively for upper gear edge and lower block
It sets in the left and right sidewall for allowing bit port, the force head includes for the seaming chuck of top pressure upper spring seat and for bullet under top pressure
The push-down head of spring abutment, wherein being formed along perpendicular to camber of spring direction for avoiding seaming chuck between the two parts on upper gear edge
Avoiding space, along the lower evacuation formed perpendicular to camber of spring direction for avoiding push-down head between the two parts on the lower block edge
Space.
Holder ontology is U-shaped along the cross section perpendicular to camber of spring direction, and the two parts on upper gear edge are oppositely arranged on U
On the upper end of type holder ontology two-arm, the two parts on lower block edge are oppositely arranged on the lower end of U-shaped holder ontology two-arm
On, the space of the upper gear edge on holder ontology and lower block between constitute described in allow bit port.
Be provided on seaming chuck for the matched press fitting protrusion of the arc groove of upper spring seat, be provided on the push-down head
For with the matched positioning convex platform of the square hole of lower spring cup.
The beneficial effects of the invention are as follows：
Compared with the prior art, spring assembly assembly tooling according to the present invention, by using bullet after camber of spring
Spring deflection holder keeps deformation comprising holder ontology, be provided on holder ontology for for spring assembly along hanging down
It is directly packed into camber of spring direction and what is removed allows bit port, allow the upper and lower side of bit port to be respectively arranged with upper with spring assembly
Thus spring can after deformation can by spring base and the cooperation of lower spring cup block with preventing upper gear edge and the lower block edge of spring reset
Enough by keeping the deflection of spring under the block effect on upper gear edge and lower block edge, and then facilitate the assembly of spring assembly, improves
Efficiency.
Further, upper gear is along the lower block having for being fastened on the aperture periphery that the spring spool of upper spring seat is perforated
Face, lower block, can be in springs along the upper stopping surface having for being fastened on the aperture periphery that the spring pull rod of lower spring cup is perforated
What evacuation opened sleeve and pull rod when installing spring deflection holder after compression additional installs position.
Further, upper gear edge and lower block set up separately along the two parts being extended relatively are respectively set to corresponding
The both sides of aperture periphery, while ensureing evacuation spring spool and spring pull rod, both sides stress can be further ensured that pressure
The stability of the holding of contracting amount.
Further, spring deflection holder is set to the single piece in U-shaped section, U-type groove chamber composition allows bit space,
So that simpler, production and processing is easy, and can be mass-produced.
Further, on the seaming chuck setting for the matched press fitting protrusion of the arc groove of upper spring seat, push
On head setting for the matched positioning convex platform of the square hole of lower spring cup, by positioning convex platform and press fitting protrusion effect can
After ensureing camber of spring, spring pull rod is consistent with the mounting hole axis on spring spool, facilitates installation.
Description of the drawings
Fig. 1 for the of the invention spring assembly to be assembled assembling structure schematic diagram；
Fig. 2 be Fig. 1 in upper spring seat, spring, lower spring cup assembling structure schematic diagram；
Fig. 3 is the assembling structure schematic diagram of the specific embodiment of the invention and spring assembly；
Fig. 4 is specific embodiment of the invention spring assembly assembly tooling structural schematic diagram；
Fig. 5 is the structural schematic diagram of seaming chuck in Fig. 4；
Fig. 6 is the structural schematic diagram of push-down head in Fig. 4；
Fig. 7 is the structural schematic diagram of spring deflection holder in Fig. 4；
Fig. 8 is the assembling structure schematic diagram of spring assembly and spring deflection holder.
Specific implementation mode
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of spring assembly assembly tooling, as shown in Figures 3 to 8, tooling setting are being fixed on forcing press
On tooling mounting plate 4 in press-mounting platform 5, tooling includes seaming chuck 1, push-down head 3, holder 2（I.e. spring deflection is kept
Part）, seaming chuck is connected on forcing press adapter 9 applies pressing force to spring assembly.Holder 2 is along perpendicular to press fitting direction
Section is U-shaped, is formed by simple sheet metal component bending, on the upper end of the U-shaped two-arm of the holder 2 is extended and has relatively
Two parts along 21 are kept off, lower end is extended relatively has lower block along 22 two parts, and upper gear is fastened on along 21 on upper spring seat 8
Spring spool perforation aperture periphery at, lower block along 22 be arranged lower spring cup 6 spring pull rod perforation aperture periphery at.
Upper gear constitutes the bit port that allows for being packed into or removing spring assembly along the U-shaped intracavity space of 21 and lower block between 22.
1 top pressure of seaming chuck is on the upper spring seat 8 of spring assembly comprising the company for being connected on pressure adapter 9
The compressed part 102 of pressing force is transmitted in socket part 101 and connection with interconnecting piece to upper end cover, is provided with and upper spring seat 8 in compressed part
Say the matched press fitting protrusion of the size of the arc groove 81 of that 103.
On the lower spring cup 6 of spring assembly, push-down head 3 includes pedestal 31 and is set on the base simultaneously 3 top pressure of push-down head
Upwardly extend to corresponding two arc-shaped blocks 32, two circles of arc surface that pedestal 31 is oppositely arranged by two and connection
The plane of cambered surface is constituted, and the place side for being oppositely arranged on arc surface is arranged in block 32, and two circular arc type blocks extend composition
The internal diameter of annulus is consistent with the diameter of spring, is arranged accordingly with the inner wall upper end of 32 homonymy of one of block in holder
Have snap-gauge 23, the consistency of thickness of the thickness and block 32 of the snap-gauge 23, with this ensure card-bit part to compressed spring assembly into
Spring assembly screens is in place when row clamps.Upper gear forms the avoiding space of evacuation seaming chuck 1, lower block edge between 21 two parts
The avoiding space of evacuation push-down head 3 is formed between 22 two parts.
The locating convex block 33 being provided on pedestal 31 in the square hole for snapping fitted to lower spring cup 6, the locating convex block
Perpendicular to the side of the axis direction of the mounting hole 1101 of spring pull rod 11 and seaming chuck 1 in side corresponding with square hole on 33
On press fitting protrusion 103 axis direction it is vertical, to ensure in the compression assembling process of spring assembly, the side on spring pull rod
The axis in shape hole is consistent with the axis of the mounting hole on spring spool.
In use, spring spool and spring pull rod are removed, spring assembly is compressed, the push-down head of the tooling is connected
It connects tooling mounting plate to be fixed by screws on forcing press transfer platform, two circular arcs spring assembly being placed on push-down head
Between shape baffle, and the direction of the arc groove on lower spring cup and upper spring seat is adjusted, to ensure the circular hole of spring pull rod, upper bullet
The arc groove of spring abutment and the circular hole three axis of spring spool drive seaming chuck to be downwardly applied to press to parallel by operating pressure machine
Holder may be provided on the upper and lower spring base of spring assembly when spring assembly is compressed to designated length, that is, complete by clamp force
The press fitting process of spring；Then forcing press is set back, the spring assembly with holder is removed, from its both ends by spring
Pull rod and spring spool are inserted into, and two that assembled spring assembly is assembled to operating mechanism hang spring end, and manual energy storage makes bullet
Spring is compressed to the length before being slightly less than assembly, can remove holder at this time, complete the assembling process of spring.
In the assembling process of the tooling, need to position the lower spring cup and upper spring seat of spring assembly, as a result,
Setting and the matched locating convex block of square hole on push-down head, setting and the matched press fitting protrusion of arc groove on seaming chuck,
During press fitting, press fitting protrusion can carry out position correction by the cooperation with arc groove to it, to complete to position.
In other embodiments, spring assembly can be tension spring component, and holder is fastened on tension spring after spring elongation
On the pulling plate at component both ends, to prevent spring from setting back, block direction is disposed opposite to each other, and the upper surface on upper gear edge constitutes upper block
Face, the lower face on lower block edge constitute lower stopping surface, it can be achieved that spring deflection holding.
In other embodiments, upper gear edge and lower block edge can be respectively set to only in one of U-shaped holder ontology
The avoiding space of evacuation force head is formed between the part being arranged on side wall, and another U-shaped arm of holder.
In other embodiments, holder could be provided as having upper gear edge and lower block along and with for spring assembly loading
With the other shapes for allowing bit port of removal, such as c-type, both ends directly constitute stop section, are arranged along vertical on stop section
It is collectively formed in the open slot of force direction and the vallecular cavity of c-type and allows bit port.
In other embodiments, pedestal can be not provided with block, or the covering spring that block is set as extending up and down is whole
The structure of body preferably ensures the guiding accuracy in spring-compressed direction.
In other embodiments, upper gear edge and lower block edge may be provided in the vallecular cavity of U-shaped holder ontology.
In spring deflection holder according to the present invention, specific embodiment and above-mentioned spring assembly assembly tooling
The specific embodiment of spring deflection holder is consistent, is no longer developed in details.
Claims (5)
1. spring deflection holder, it is characterised in that：Including holder ontology, it is provided with for for spring on holder ontology
Component along being packed into perpendicular to camber of spring direction and what is removed allows bit port, allow the upper and lower side of bit port be separately provided for
The upper spring seat and lower spring cup block of the spring assembly coordinate the upper gear edge of the spring reset to prevent spring assembly under
Edge is kept off, the lower face on the upper gear edge is constituted for realizing the aperture periphery block perforated with the spring spool of the upper spring seat
The upper stopping surface of cooperation, the upper surface on lower block edge constitute with upper stopping surface be oppositely arranged for realizing with the lower spring cup
The lower stopping surface of the aperture periphery block cooperation of spring pull rod perforation, the upper gear edge and lower block edge are made of two parts, on
Two parts of two parts and lower block edge for keeping off edge are oppositely arranged on respectively to be allowed in the left and right sidewall of bit port, wherein the two of upper gear edge
Along the upper avoiding space formed perpendicular to camber of spring direction for avoiding seaming chuck, the two parts on the lower block edge between part
Between along perpendicular to camber of spring direction form lower avoiding space for avoiding push-down head.
2. spring deflection holder according to claim 1, it is characterised in that：The holder ontology is along perpendicular to bullet
The cross section of spring deformation direction is U-shaped, and the two parts on upper gear edge are oppositely arranged on the upper end of U-shaped holder ontology two-arm,
The two parts on lower block edge are oppositely arranged on the lower end of U-shaped holder ontology two-arm, and the upper gear edge on holder ontology is under
Space of the gear between allows bit port described in constituting.
3. spring assembly assembly tooling, it is characterised in that：The tooling includes spring deflection holder and is used for groups of springs
Part apply active force and make its stretch or compressive deformation force head, the spring deflection holder includes holder ontology,
It is provided on holder ontology for, along the bit port that allows for being packed into and removing perpendicular to camber of spring direction, stepping down for spring assembly
The upper and lower side in channel is separately provided for the upper spring seat of the spring assembly and the cooperation of lower spring cup block to prevent bullet
The upper gear edge of the spring reset of spring component and lower block edge, it is described it is upper gear edge lower face constitute for realizing with the upper spring seat
Spring spool perforation the cooperation of aperture periphery block upper stopping surface, the upper surface on lower block edge constitutes sets opposite with upper stopping surface
The lower stopping surface for realizing the aperture periphery block cooperation perforated with the spring pull rod of the lower spring cup set, the upper gear
Along being made of two parts, the two parts on upper gear edge and the two parts on lower block edge are oppositely arranged on respectively allows bit port for edge and lower block
Left and right sidewall on, the force head includes the seaming chuck for top pressure upper spring seat and the pushing for top pressure lower spring cup
Head, wherein edge forms the upper avoiding space for avoiding seaming chuck perpendicular to camber of spring direction between the two parts on upper gear edge,
Along the lower avoiding space formed perpendicular to camber of spring direction for avoiding push-down head between the two parts on the lower block edge.
4. spring assembly assembly tooling according to claim 3, it is characterised in that：The holder ontology is along perpendicular to bullet
The cross section of spring deformation direction is U-shaped, and the two parts on upper gear edge are oppositely arranged on the upper end of U-shaped holder ontology two-arm,
The two parts on lower block edge are oppositely arranged on the lower end of U-shaped holder ontology two-arm, and the upper gear edge on holder ontology is under
Space of the gear between allows bit port described in constituting.
5. spring assembly assembly tooling according to claim 3, it is characterised in that：Be provided on the seaming chuck for
The arc groove matched press fitting protrusion of upper spring seat is provided with for matched with the square hole of lower spring cup on the push-down head
Positioning convex platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892957.0A CN106346418B (en) | 2016-10-13 | 2016-10-13 | Spring assembly assembly tooling and its spring deflection holder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610892957.0A CN106346418B (en) | 2016-10-13 | 2016-10-13 | Spring assembly assembly tooling and its spring deflection holder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106346418A CN106346418A (en) | 2017-01-25 |
| CN106346418B true CN106346418B (en) | 2018-07-27 |
Family
ID=57866573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610892957.0A Active CN106346418B (en) | 2016-10-13 | 2016-10-13 | Spring assembly assembly tooling and its spring deflection holder |
Country Status (1)
| Country | Link |
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| CN (1) | CN106346418B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108470653B (en) * | 2018-05-10 | 2023-08-15 | 河南森源电气股份有限公司 | Circuit breaker spring assembly quality |
| CN108511237A (en) * | 2018-05-23 | 2018-09-07 | 河南森源电气股份有限公司 | A kind of earthing switch assembling jig for spring |
| CN109514500A (en) * | 2018-12-13 | 2019-03-26 | 淮海工业集团有限公司 | A kind of quick spring closing assembly tool |
| CN110285168A (en) * | 2019-05-15 | 2019-09-27 | 上海电器科学研究院 | A kind of energy storage compressed spring mounting structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516303A (en) * | 1983-03-16 | 1985-05-14 | Kloster Kenneth D | Spring compressor |
| CN2386525Y (en) * | 1999-08-23 | 2000-07-05 | 绍兴电力设备成套公司 | Rotatable contact holding spring for high voltage vacuum switch |
| EP1477279A2 (en) * | 2003-05-10 | 2004-11-17 | Hazet-Werk Hermann Zerver GmbH & Co. KG | Jaw for spring tensioner |
| CN201092031Y (en) * | 2007-11-05 | 2008-07-30 | 攀枝花新钢钒股份有限公司 | Spring mounting auxiliary device |
| CN204546452U (en) * | 2015-03-02 | 2015-08-12 | 广西防城港核电有限公司 | Air lock door spring regulating device |
| CN105856162A (en) * | 2016-06-21 | 2016-08-17 | 中航成飞民用飞机有限责任公司 | Compression spring mounting tool |
-
2016
- 2016-10-13 CN CN201610892957.0A patent/CN106346418B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4516303A (en) * | 1983-03-16 | 1985-05-14 | Kloster Kenneth D | Spring compressor |
| CN2386525Y (en) * | 1999-08-23 | 2000-07-05 | 绍兴电力设备成套公司 | Rotatable contact holding spring for high voltage vacuum switch |
| EP1477279A2 (en) * | 2003-05-10 | 2004-11-17 | Hazet-Werk Hermann Zerver GmbH & Co. KG | Jaw for spring tensioner |
| CN201092031Y (en) * | 2007-11-05 | 2008-07-30 | 攀枝花新钢钒股份有限公司 | Spring mounting auxiliary device |
| CN204546452U (en) * | 2015-03-02 | 2015-08-12 | 广西防城港核电有限公司 | Air lock door spring regulating device |
| CN105856162A (en) * | 2016-06-21 | 2016-08-17 | 中航成飞民用飞机有限责任公司 | Compression spring mounting tool |
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| Publication number | Publication date |
|---|---|
| CN106346418A (en) | 2017-01-25 |
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