CN104139368B - Ring elastic parts mounting tool and device for spreading thereof - Google Patents
Ring elastic parts mounting tool and device for spreading thereof Download PDFInfo
- Publication number
- CN104139368B CN104139368B CN201310443807.8A CN201310443807A CN104139368B CN 104139368 B CN104139368 B CN 104139368B CN 201310443807 A CN201310443807 A CN 201310443807A CN 104139368 B CN104139368 B CN 104139368B
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- roll extrusion
- elastic parts
- ring elastic
- transition
- keeper
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- 238000003892 spreading Methods 0.000 title claims abstract description 27
- 238000001125 extrusion Methods 0.000 claims abstract description 123
- 230000007704 transition Effects 0.000 claims abstract description 56
- 230000002093 peripheral effect Effects 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 10
- 238000005096 rolling process Methods 0.000 claims description 17
- 238000001179 sorption measurement Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000007246 mechanism Effects 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention discloses a kind of ring elastic parts mounting tool and device for spreading thereof, this frock comprises transition keeper and ring elastic parts device for spreading, described device for spreading comprises tooling platform, hold down assembly and roll extrusion assembly, tooling platform has the vertical datum axis of setting, tooling platform is provided with the location structure that location and installation transition keeper makes it coaxial with described datum axis, hold down assembly to comprise and be pressed to the compact heap of transition keeper outer peripheral face relevant position for coincideing one of ring elastic parts inner peripheral surface section, roll extrusion assembly comprises the roll extrusion arm rotated around described datum axis, this roll extrusion arm has the pressure be set on transition keeper outer peripheral face for extruding ring elastic parts in rotation process and touches face.During use, transition keeper is mounted to tooling platform, with compact heap, one of ring elastic parts section is pressed on transition keeper outer peripheral face relevant position, rotate from compression place with roll extrusion arm again, utilize its pressure face of touching to be filled on transition keeper by ring elastic parts extruded sleeve.
Description
Technical field
The present invention relates to a kind of ring elastic parts mounting tool, also relate to a kind of ring elastic parts device for spreading that this ring elastic parts mounting tool uses simultaneously.
Background technology
In daily production process, often need some ring elastic parts are installed, for spacing C shape elastic steel wire check ring etc. on the fingertip spring used in such as high-voltage switch gear, axial workpiece.When installing ring elastic parts, be generally be contained on the workpiece also larger than its internal diameter, this just needs ring elastic parts to strut, but due to the elasticity of this kind of part general larger, artificial directly installation is very difficult, and wastes time and energy.
200910172738.5 a number application for a patent for invention discloses a kind of elastic steel wire check ring assembly tooling, it comprises coordinating with interstage sleeve grafting for the interstage sleeve of support back-up ring to be installed, one end coaxially pushes up press-fit for clamping back-up ring to keep the pushing sleeve of back-up ring spreading state for the tapering transition minor axis of spreading back-up ring and one end and transition minor axis, pushing sleeve center has the through hole passed for workpiece, and top pressure side has the face of cylinder for keeping back-up ring softened state; During use, back-up ring is placed on interstage sleeve, transition minor axis is inserted interstage sleeve, promote transition minor axis with pushing sleeve, when transition minor axis is pushed into after in interstage sleeve, back-up ring is just softened and slide on pushing sleeve, then by pushing sleeve cover to the circlip groove place of workpiece, rap back-up ring and make it to slip in circlip groove.
Above-mentioned elastic steel wire check ring assembly tooling is not directly be installed on workpiece by back-up ring, but a transition keeper (pushing sleeve) is set, this transition keeper is sheath structure, middle through-hole is used for passing through for workpiece, the face of cylinder, periphery is for keeping the softened state of back-up ring, first being strutted by back-up ring with special tooling is installed on transition keeper, and then back-up ring is moved to workpiece from transition keeper, such one is that to strut back-up ring with special tooling time saving and energy saving, reduce labor strength, two be when a transition keeper installing back-up ring take workpiece is installed time, can continue next back-up ring to be strutted to another transition keeper, improve installation rate.
But the back-up ring of above-mentioned elastic steel wire check ring assembly tooling struts mode limitation, it to strut degree less, back-up ring diameter of section can not be exceeded, so versatility is strong, not be suitable for the installation of the large ring elastic parts of the deformation extents such as similar fingertip spring.
Summary of the invention
The object of this invention is to provide a kind of ring elastic parts device for spreading, for the ring elastic parts with circular cross-section is strutted transition keeper, be intended to solve existing apparatus and strut the problem of degree by the restriction of ring elastic parts sectional dimension.The present invention also aims to provide the ring elastic parts mounting tool using this device for spreading simultaneously.
In order to realize above object, ring elastic parts device for spreading provided by the present invention adopts following technical scheme:
A kind of ring elastic parts device for spreading, comprise tooling platform, hold down assembly and roll extrusion assembly, tooling platform has the datum axis vertically extended of setting, tooling platform is provided with the location structure making it coaxial with described datum axis for location and installation transition keeper, hold down assembly to comprise and be pressed to the compact heap of transition keeper outer peripheral face relevant position for coincideing one of ring elastic parts inner peripheral surface section, roll extrusion assembly comprises the roll extrusion arm rotated around described datum axis, this roll extrusion arm has the pressure be set on transition keeper outer peripheral face for extruding ring elastic parts in rotation process and touches face.
Described roll extrusion arm is rotatably equipped with rolling wheel, and the described pressure face of touching is the curved surfaces of rolling wheel.
Described tooling platform side opening is provided with the gathering sill that the radial direction along datum axis extends, described compact heap guiding movement is assemblied in this gathering sill, the described handle also comprising and to be articulated with around vertical rotating axis on tooling platform that holds down assembly, this handle is fixed with in handle swing process along the radial direction of datum axis near or away from ring elastic parts, drive compact heap move in gathering sill and compress or unclamp the eccentric wheel structure of ring elastic parts by magnetic-adsorption.
Described roll extrusion assembly comprises the roll extrusion support rotated around described datum axis, described roll extrusion arm swing up and down hinged with this roll extrusion support, the stroke that swings up and down of roll extrusion arm has the roll extrusion position that compresses ring elastic parts and unclamps the disengaging position of ring elastic parts.
Described roll extrusion arm center along its length guiding movement is equipped with gag lever post, the side of described roll extrusion arm is provided with for fixing or unclamp the lock-screw of described gag lever post, and described roll extrusion support is provided with the spacing hole for inserting gag lever post roll extrusion arm being locked to roll extrusion position.
Ring elastic parts mounting tool provided by the present invention adopts following technical scheme:
A kind of ring elastic parts mounting tool, comprise transition keeper and ring elastic parts device for spreading, described ring elastic parts device for spreading comprises tooling platform, hold down assembly and roll extrusion assembly, tooling platform has the datum axis vertically extended of setting, tooling platform is provided with the location structure that location and installation transition keeper makes it coaxial with described datum axis, hold down assembly to comprise and be pressed to the compact heap of transition keeper outer peripheral face relevant position for coincideing one of ring elastic parts inner peripheral surface section, roll extrusion assembly comprises the roll extrusion arm rotated around described datum axis, this roll extrusion arm has the pressure be set on transition keeper outer peripheral face for extruding ring elastic parts in rotation process and touches face.
Described roll extrusion arm is rotatably equipped with rolling wheel, and the described pressure face of touching is the curved surfaces of rolling wheel.
Described tooling platform side opening is provided with the gathering sill that the radial direction along datum axis extends, described compact heap guiding movement is assemblied in this gathering sill, the described handle also comprising and to be articulated with around vertical rotating axis on tooling platform that holds down assembly, this handle is fixed with in handle swing process along the radial direction of datum axis near or away from ring elastic parts, drive compact heap move in gathering sill and compress or unclamp the eccentric wheel structure of ring elastic parts by magnetic-adsorption.
Described roll extrusion assembly comprises the roll extrusion support rotated around described datum axis, described roll extrusion arm swing up and down hinged with this roll extrusion support, the stroke that swings up and down of roll extrusion arm has the roll extrusion position that compresses ring elastic parts and unclamps the disengaging position of ring elastic parts.
Described roll extrusion arm center along its length guiding movement is equipped with gag lever post, the side of described roll extrusion arm is provided with for fixing or unclamp the lock-screw of described gag lever post, and described roll extrusion support is provided with the spacing hole for inserting gag lever post roll extrusion arm being locked to roll extrusion position.
When using of the present invention, by transition keeper location and installation on tooling platform, first with compact heap, one section of ring elastic parts inner peripheral surface to be strutted is pressed on transition keeper outer peripheral face relevant position, rotate from compression place with roll extrusion arm again, utilize its pressure face of touching to be filled on transition keeper by ring elastic parts extruded sleeve.This mode that struts is simple, fast, and does not limit by ring elastic parts sectional dimension, can be used for the multiple ring elastic parts with circular cross-section.
Further, roll extrusion arm arranges rolling wheel, the sliding friction of roll extrusion arm to ring elastic parts is become rolling friction, can avoid roll extrusion arm in the process of extruding ring elastic parts, scratch the surface of ring elastic parts; Arrange eccentric wheel handle to drive compact heap to unclamp or to compress ring elastic parts, easy to use, operating efficiency is high, and compact heap is connected with eccentric wheel handle magnetic, is convenient for changing, to adapt to the ring elastic parts compressing different cross section size; Arrange roll extrusion support, and be hinged on swinging up and down by roll extrusion arm on this roll extrusion support, firmly lower press rolls pressure arm promote roll extrusion arm in rolling process, lifts roll extrusion arm when installing or removing transition keeper like this, more convenient to operate; Further, with gag lever post and spacing hole, roll extrusion arm is locked to roll extrusion position, the impaction state of roll extrusion arm can be kept, in rolling process, only need promote roll extrusion arm like this, and motor driver is also conveniently set when practical application to realize the automation of roll extrusion support rotation.
Accompanying drawing explanation
Fig. 1 is the structural representation of ring elastic parts mounting tool of the present invention;
Fig. 2 is the front view of ring elastic parts mounting tool of the present invention;
Fig. 3 holds down assembly in Fig. 1 and the installation diagram of tooling platform;
Fig. 4 is the top view of Fig. 3;
Fig. 5 is the structural representation held down assembly in Fig. 3;
Fig. 6 is the front view of roll extrusion assembly in Fig. 1;
Fig. 7 is the top view of Fig. 6;
Fig. 8 is the structural representation of transition keeper in Fig. 1;
Fig. 9 is the sectional view of transition keeper;
Figure 10 is the structural representation that another kind holds down assembly.
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.
The embodiment of ring elastic parts mounting tool in the present invention:
As shown in Figures 1 to 9, this ring elastic parts mounting tool comprises ring elastic parts device for spreading and transition keeper 5, and ring elastic parts device for spreading is used for ring elastic parts 6 to strut to be installed to transition keeper 5.This ring elastic parts device for spreading comprises tooling platform 1, hold down assembly 2, roll extrusion assembly 3 and the motor driver 4 that is arranged on below tooling platform 1.Motor driver 4 comprises motor, decelerator and casing, and motor and decelerator are installed in box house, and motor is in transmission connection by decelerator and roll extrusion assembly 3, rotates for driving roll extrusion assembly 3.Tooling platform 1 is a cylinder table, top has annular locating lug boss 11, side has gathering sill 12, hold down assembly and comprise compact heap 21 and eccentric wheel handle 22, be inlaid with magnet 23 in compact heap 21, thus the eccentric wheel structure being adsorbed on eccentric wheel handle on the surface, compact heap 21 is also positioned at gathering sill 12, when pulling eccentric wheel handle 22, eccentric wheel handle 22 drives compact heap 21 to move in gathering sill 12 and compresses or unclamp ring elastic parts 6.Roll extrusion assembly 3 mainly comprises roll extrusion support 31, roll extrusion arm 32 and rolling wheel 33, and roll extrusion support 31 has the turning cylinder coaxial with annular locating lug boss 11, and this turning cylinder is connected with motor driver 4 through tooling platform 1; Roll extrusion arm 32 to be arranged on roll extrusion support 31 by pivot pin thus can to swing up and down, and the oscillating stroke of roll extrusion arm 32 has the roll extrusion position compressing ring elastic parts 6 and the disengaging position of unclamping ring elastic parts 6; Rolling wheel 33 is arranged on also can around own axis on roll extrusion arm 32, and when roll extrusion arm 32 is in roll extrusion position and rotates with roll extrusion support 31, rolling wheel 33 limit is around own axis lateral dominance its curved surfaces extruding ring elastic parts 6; At roll extrusion arm 32 center, guiding movement is equipped with gag lever post 34 along its length, the lock-screw 36 fixing and unclamp this gag lever post 34 is provided with in the side of roll extrusion arm 32, roll extrusion support 31 is also provided with limited block 35, limited block 35 has spacing hole, roll extrusion arm 32 is roughly cuboid, it has the groove of dodging limited block 35, when roll extrusion arm 32 is in roll extrusion position, gag lever post 34 can insert the spacing hole on limited block 35, thus roll extrusion arm 32 is locked to roll extrusion position.
Transition keeper 5 is roughly a body, and substructure is loading plate 51, and loading plate 51 is provided with the cylinder 52 for keeping ring elastic parts softened state, and transition keeper 5 center has the through hole that can pass for workpiece; Cylinder 52 top has fillet, facilitates the press-in of ring elastic parts 6, and cylinder 52 outer wall has V-shaped groove, deviates from voluntarily from cylinder 52 for preventing ring elastic parts 6; On loading plate 51, symmetry offers two rectangular indentation, is respectively hinged with a plectrum 53 in each breach, ring elastic parts 6 can be transferred to from cylinder 52 when pulling plectrum 53.
During ring elastic parts mounting tool concrete operations of the present invention, can carry out in the steps below:
1. transition keeper 5 is inserted in annular locating lug boss 11, makes transition keeper 5 be positioned on tooling platform 1;
2. pull eccentric wheel handle 22, make compact heap 21 be pressed on the outer wall of the cylinder 52 of transition keeper 5 by one section of ring elastic parts 6 inner peripheral surface;
3. roll extrusion arm 32 is pulled to roll extrusion position, make rolling wheel 33 compress ring elastic parts 6, gag lever post 34 is inserted in the spacing hole of limited block 35, and tighten lock-screw 36, complete the clamping of ring elastic parts 6;
4. start motor, driven by motor roll extrusion support 31 rotates, and roll extrusion arm 32 rotates thereupon, and rolling wheel 33 rolls on ring elastic parts 6, and is slowly extruded by ring elastic parts 6 and strut on transition keeper 5, disable motor after completing;
5. unclamp hold down assembly 2 and roll extrusion assembly 3, transition keeper 5 is taken off from tooling platform 1;
6. the transition keeper 5 with the ring elastic parts 6 strutted is nested into the elastic component installation site on workpiece, pulls plectrum 53, make ring elastic parts 6 deviate from from transition keeper 5 and fall the elastic component installation site workpiece, complete installation.
The present invention adopts such scheme to strut installation ring elastic parts, reduces labour intensity, improves production efficiency, and structure is simple, easy to operate.
In the above-described embodiments, tooling platform 1 adopts annular locating lug boss 11 to carry out location and installation transition keeper 5, make it coaxial with the vertical datum axis set (i.e. the axis of annular locating lug boss 11), in other embodiments, the locking mechanisms such as bolt can also be adopted by transition keeper location and installation on tooling platform.
In the above-described embodiments, roll extrusion arm 32 can swing up and down, and so conveniently installs or unload transition keeper 5, in other embodiments, roll extrusion arm also can be fixedly connected with roll extrusion support or be wholely set, and such transition keeper needs inclination to be inserted in roll extrusion arm, and then is fixed on tooling platform.In other embodiments, roll extrusion arm also removably can be connected on roll extrusion support by bolt, with bolt, roll extrusion arm is fixed to roll extrusion position during use, is pulled down by roll extrusion arm after the complete ring elastic parts of roll extrusion again.
In other embodiments, also can not motor driver be set, and rotates by the artificial roll extrusion arm that promotes, ring elastic parts is press fit on transition keeper.
In the above-described embodiments, compact heap 21 magnetic is connected on eccentric wheel handle 22, and such eccentric wheel handle can drive compact heap to move, and compact heap can be changed, to adapt to the ring elastic parts compressing other sectional dimension.In other embodiments, also can adopt structure as shown in Figure 10, compact heap and eccentric wheel handle are wholely set, at this moment tooling platform need not arrange gathering sill.In other embodiments, also can not eccentric wheel handle be set, and with bolt tightening or unclamp compact heap, makes compact heap compress or unclamp ring elastic parts.
In order to prevent ring elastic parts 6 softened after transition keeper 5 because autogenous shrinkage power is deviate from voluntarily, cylinder 52 outer wall has V-shaped groove, the degree of depth of this V-shaped groove, drift angle should arrange appropriately, can not deviate from voluntarily with ring elastic parts and people's hand or with simple tool can easily by ring elastic parts transfer to be advisable.In other embodiments, described V-shaped groove also can adopt the groove of other shape to substitute, such as circular arc or trapezoidal.
The embodiment of ring elastic parts device for spreading in the present invention: as shown in Figures 1 to 10, the structure of this ring elastic parts device for spreading is identical with the ring elastic parts device for spreading structure adopted in above-mentioned ring elastic parts mounting tool, therefore repeats no more here.
Claims (10)
1. a ring elastic parts device for spreading, it is characterized in that: comprise tooling platform, hold down assembly and roll extrusion assembly, tooling platform has the datum axis vertically extended of setting, tooling platform is provided with the location structure making it coaxial with described datum axis for location and installation transition keeper, hold down assembly to comprise and be pressed to the compact heap of transition keeper outer peripheral face relevant position for coincideing one of ring elastic parts inner peripheral surface section, roll extrusion assembly comprises the roll extrusion arm rotated around described datum axis, this roll extrusion arm has the pressure be set on transition keeper outer peripheral face for extruding ring elastic parts in rotation process and touches face.
2. ring elastic parts device for spreading according to claim 1, is characterized in that: described roll extrusion arm is rotatably equipped with rolling wheel, and the described pressure face of touching is the curved surfaces of rolling wheel.
3. ring elastic parts device for spreading according to claim 1, it is characterized in that: described tooling platform side opening is provided with the gathering sill that the radial direction along datum axis extends, described compact heap guiding movement is assemblied in this gathering sill, the described handle also comprising and to be articulated with around vertical rotating axis on tooling platform that holds down assembly, this handle is fixed with in handle swing process along the radial direction of datum axis near or away from ring elastic parts, drive compact heap move in gathering sill and compress or unclamp the eccentric wheel structure of ring elastic parts by magnetic-adsorption.
4. the ring elastic parts device for spreading according to claim 1 or 2 or 3, it is characterized in that: described roll extrusion assembly comprises the roll extrusion support rotated around described datum axis, described roll extrusion arm swing up and down hinged with this roll extrusion support, the stroke that swings up and down of roll extrusion arm has the roll extrusion position that compresses ring elastic parts and unclamps the disengaging position of ring elastic parts.
5. ring elastic parts device for spreading according to claim 4, it is characterized in that: described roll extrusion arm center along its length guiding movement is equipped with gag lever post, the side of described roll extrusion arm is provided with for fixing or unclamp the lock-screw of described gag lever post, and described roll extrusion support is provided with the spacing hole for inserting gag lever post roll extrusion arm being locked to roll extrusion position.
6. a ring elastic parts mounting tool, comprise transition keeper and ring elastic parts device for spreading, it is characterized in that: described ring elastic parts device for spreading comprises tooling platform, hold down assembly and roll extrusion assembly, tooling platform has the datum axis vertically extended of setting, tooling platform is provided with the location structure that location and installation transition keeper makes it coaxial with described datum axis, hold down assembly to comprise and be pressed to the compact heap of transition keeper outer peripheral face relevant position for coincideing one of ring elastic parts inner peripheral surface section, roll extrusion assembly comprises the roll extrusion arm rotated around described datum axis, this roll extrusion arm has the pressure be set on transition keeper outer peripheral face for extruding ring elastic parts in rotation process and touches face.
7. ring elastic parts mounting tool according to claim 6, is characterized in that: described roll extrusion arm is rotatably equipped with rolling wheel, and the described pressure face of touching is the curved surfaces of rolling wheel.
8. ring elastic parts mounting tool according to claim 6, it is characterized in that: described tooling platform side opening is provided with the gathering sill that the radial direction along datum axis extends, described compact heap guiding movement is assemblied in this gathering sill, the described handle also comprising and to be articulated with around vertical rotating axis on tooling platform that holds down assembly, this handle is fixed with in handle swing process along the radial direction of datum axis near or away from ring elastic parts, drive compact heap move in gathering sill and compress or unclamp the eccentric wheel structure of ring elastic parts by magnetic-adsorption.
9. the ring elastic parts mounting tool according to claim 6 or 7 or 8, it is characterized in that: described roll extrusion assembly comprises the roll extrusion support rotated around described datum axis, described roll extrusion arm swing up and down hinged with this roll extrusion support, the stroke that swings up and down of roll extrusion arm has the roll extrusion position that compresses ring elastic parts and unclamps the disengaging position of ring elastic parts.
10. ring elastic parts mounting tool according to claim 9, it is characterized in that: described roll extrusion arm center along its length guiding movement is equipped with gag lever post, the side of described roll extrusion arm is provided with for fixing or unclamp the lock-screw of described gag lever post, and described roll extrusion support is provided with the spacing hole for inserting gag lever post roll extrusion arm being locked to roll extrusion position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310443807.8A CN104139368B (en) | 2013-09-26 | 2013-09-26 | Ring elastic parts mounting tool and device for spreading thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310443807.8A CN104139368B (en) | 2013-09-26 | 2013-09-26 | Ring elastic parts mounting tool and device for spreading thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104139368A CN104139368A (en) | 2014-11-12 |
| CN104139368B true CN104139368B (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310443807.8A Active CN104139368B (en) | 2013-09-26 | 2013-09-26 | Ring elastic parts mounting tool and device for spreading thereof |
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| CN (1) | CN104139368B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109382784B (en) * | 2018-12-22 | 2024-06-21 | 山西汾西重工有限责任公司 | Inboard flat arc copper bar embedding tool and embedding method for motor sealing ring |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH684391A5 (en) * | 1990-10-22 | 1994-09-15 | Hobac S A | Method and apparatus for implementing an O-ring in a groove. |
| DE102005001225B4 (en) * | 2005-01-10 | 2012-10-25 | Sim Automation Gmbh & Co. Kg | Method and device for mounting internal O-rings |
| CN100525997C (en) * | 2006-12-20 | 2009-08-12 | 中国科学院沈阳自动化研究所 | Special press-fitting mechanism for elastic check ring for shaft |
| JP5127320B2 (en) * | 2007-06-27 | 2013-01-23 | 三洋電機株式会社 | Mounting jig for ring packing |
| CN101700650B (en) * | 2009-11-26 | 2012-04-11 | 平高集团有限公司 | Assembly tooling of an elastic steel wire check ring |
| CN102581597B (en) * | 2012-03-09 | 2014-04-09 | 上海克来机电自动化工程有限公司 | Push mounting fixture for oil inlet and outlet plates of electric fuel pumps |
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