CN202225046U - Special clamping fixture for grinding valve core of V-shaped globe valve - Google Patents
Special clamping fixture for grinding valve core of V-shaped globe valve Download PDFInfo
- Publication number
- CN202225046U CN202225046U CN2011203507128U CN201120350712U CN202225046U CN 202225046 U CN202225046 U CN 202225046U CN 2011203507128 U CN2011203507128 U CN 2011203507128U CN 201120350712 U CN201120350712 U CN 201120350712U CN 202225046 U CN202225046 U CN 202225046U
- Authority
- CN
- China
- Prior art keywords
- fixing
- fixed cover
- retainer ring
- fixed
- valve core
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model relates to a special clamping fixture for grinding a valve core of a V-shaped globe valve. The special clamping fixture comprises a fixing shaft, a fixing nut I, a fixing ring I, a fixing sleeve I, two screws, a fixing sleeve II, a fixing ring II, a fixing nut II, an eccentric sleeve and a flat key, wherein the eccentric sleeve is sleeved on the fixing shaft; one end of the flat key is arranged in a key groove on the fixing shaft; the other end of the flat key is arranged in a key groove arranged on the eccentric sleeve; the fixing shaft is are fixed with the eccentric sleeve by the flat key; the two screws are respectively screwed in threaded through holes arranged in the eccentric sleeve; the fixing sleeve I and the fixing ring I are sequentially arranged on one end of the fixing shaft in a penetrating manner; the fixing nut I is connected with a screw thread pair on one end of the fixing shaft in a screwing manner; the fixing sleeve II and the fixing ring II are sequentially arranged at the other end of the fixing shaft in a penetrating manner; and the fixing nut II is connected with a screw thread pair at the other end of the fixing shaft in a screwing manner. The clamping fixture is simple in structure, convenient in clamping, and accurate in positioning. With the adoption of a combined manner of the fixing rings and the deformable fixing sleeves, the accuracy of a relative position between a valve core to be machined and the fixing shaft can be guaranteed by self centering, thereby guaranteeing the spherical grinding accuracy of the valve core to be machined.
Description
Technical field
The utility model relates to the grinding special tooling, the special-purpose mold of particularly a kind of V-type ball valve core grinding.
Background technology
At present, the V-type ball valve as a kind of of many uses, save the energy, high-quality control valve, market demand constantly increases.Because V-type ball valve core particular structural causes the dimensional accuracy of its axis hole and the precision of position to be difficult to guarantee, has a strong impact on the once one-tenth dress qualification rate and the service life of V-type ball valve.
Summary of the invention
In view of the above-mentioned prior art situation and the market demand, the utility model provides a kind of V-type ball valve core grinding special-purpose mold.This mold has overcome traditional diamond-making technique and has adopted mandrel to add the locate mode of fixed cover, and the combining form of employing retainer ring and deformable fixed cover solves the low problem of machining accuracy with self centering mode.
The technical scheme of the utility model for realizing that above-mentioned purpose is taked: the special-purpose mold of a kind of V-type ball valve core grinding; It is characterized in that: comprise fixed axis, hold-down nut I, retainer ring I, fixed cover I, screw, fixed cover II, retainer ring II, hold-down nut II, eccentric bushing, flat key; Said eccentric bushing penetrates on fixed axis; Said flat key one end places the keyway on the fixed axis; The keyway that the other end of flat key places eccentric bushing to be provided with, flat key is fixed together fixed axis and eccentric bushing, and two said screws screw in respectively in two threaded through holes that eccentric bushing is provided with; Said fixed cover I, retainer ring I are through on the end of fixed axis successively, and the screw thread pair of hold-down nut I on fixed axis one end is screwed onto; Said fixed cover II, retainer ring II are through on the fixed axis other end successively, and the screw thread pair of hold-down nut II on the fixed axis other end is screwed onto.
The beneficial effect of the utility model is: simple in structure, be convenient to clamping, accurate positioning.Combining form through retainer ring and deformable fixed cover guarantees the relative positional accuracy of processed spool and fixed axis with self centering mode, thereby guarantees the spherical grinding machining accuracy of processed spool.
Description of drawings
Fig. 1 is the generalized section of the utility model.
Fig. 2 is the exploded perspective view of the utility model.
Fig. 3 is the zoomed-in view of fixed cover.
The specific embodiment
Like Fig. 1,2, shown in 3; The special-purpose mold of V-type ball valve core grinding; Adopt the combining form of retainer ring and deformable fixed cover, comprise fixed axis 1, hold-down nut I 2, retainer ring I 3, fixed cover I 4, screw 5, fixed cover II6, retainer ring II7, hold-down nut II8, eccentric bushing 9, flat key 10, eccentric bushing 9 penetrates on fixed axis 1; Said flat key 10 1 end faces place the strong groove on the fixed axis 1; The keyway that the other end of flat key 10 places eccentric bushing 9 to be provided with, flat key 10 is fixed together fixed axis 1 and eccentric bushing 9, and two said screws 5 screw in respectively in two threaded through holes that eccentric bushing 9 is provided with; Said fixed cover I 4, retainer ring I 3 are through on the end of fixed axis successively, and the screw thread pair of hold-down nut I 2 on fixed axis 1 one ends is screwed onto.Two boss on the fixed axis 1 rise, and are respectively equipped with a circle chamfering 1-2, and chamfer angle is 30 degree.Retainer ring I 3, retainer ring II7 are same structure, on the cylindrical of retainer ring one end, are provided with a circle chamfering 3-1, and the angle of chamfering is degree.Fixed cover I 4, fixed cover II6 are same structure, and fixed cover is a tubular body, and the internal orifice at fixed cover two ends is angle 4-6-1, and the angle of angle 4-6-1 is 30 degree, on the tube wall at fixed cover two ends, intersect to be provided with several gap 4-6-2.
Method for using: two screws 5 screw in respectively in two threaded through holes that have on eccentric bushing 9 end faces, and flat key 10 1 end faces are placed the strong groove on the fixed axis 1, and processed spool 11 is through on the fixed axis 1 with eccentric bushing 9 simultaneously; The keyway that the other end of flat key 10 places eccentric bushing 9 upper shaft hole inwalls to be provided with, flat key 10 is fixed together fixed axis 1 and eccentric bushing 9, and eccentric bushing 9 one ends are socketed on the boss platform 1-1 of fixed axis 1 one ends; Processed spool 11 is positioned at fixed axis 1 centre position, screws two screws 5, and two screw 5 flush ends are contacted with processed spool 11; Pack into successively in fixed axis 1 left side fixed cover I 4, retainer ring I 3; The chamfering tight fit in fixed cover I 4 chamferings and processing spool 11 axis holes wherein, retainer ring I 3 contacts with fixed cover I 4, and hold-down nut I 2 is threaded with screw thread pair on the fixed axis 1; Be close to retainer ring I 3 simultaneously; Pack into successively on fixed axis 1 right side fixed cover II6, retainer ring II7, the chamfering tight fit in fixed cover II6 chamfering and processing spool 11 axis holes wherein, retainer ring II7 contacts with fixed cover II6; Hold-down nut II8 is threaded with screw thread pair on the fixed axis 1, is close to retainer ring II7 simultaneously.
With reference to figure three, fixed cover adopts the elastic construction design, and the continuous structure in some positions, when this structure receives outward radial force, can show micro-deformation, guarantees that processed spool receives good fixing and location.
Claims (4)
1. the special-purpose mold of a V-type ball valve core grinding; It is characterized in that: comprise fixed axis (1), hold-down nut I (2), retainer ring I (3), fixed cover I (4), screw (5), fixed cover II (6), retainer ring II (7), hold-down nut II (8), eccentric bushing (9), flat key (10); Said eccentric bushing (9) penetrates on fixed axis (1); Said flat key (10) one ends place the keyway on the fixed axis (1); The keyway that the other end of flat key (10) places eccentric bushing (9) to be provided with; Flat key (10) is fixed together fixed axis (1) and eccentric bushing (9), and two said screws (5) screw in respectively in two threaded through holes that eccentric bushing (9) is provided with; Said fixed cover I (4), retainer ring I (3) are through on the end of fixed axis successively, and the screw thread pair of hold-down nut I (2) on fixed axis (1) one end is screwed onto; Said fixed cover II (6), retainer ring II (7) are through on fixed axis (1) other end successively, and the screw thread pair of hold-down nut II (8) on fixed axis (1) other end is screwed onto.
2. the special-purpose mold of V-type ball valve core grinding according to claim 1, it is characterized in that: two boss on the said fixed axis (1) rise, and are respectively equipped with a circle chamfering (1-2), and chamfer angle is 30 degree.
3. the special-purpose mold of V-type ball valve core grinding according to claim 1; It is characterized in that: said retainer ring I (3), retainer ring II (7) are same structure; On the cylindrical of retainer ring one end, be provided with a circle chamfering (3-1), the angle of chamfering is 30 degree.
4. the special-purpose mold of V-type ball valve core grinding according to claim 1; It is characterized in that: said fixed cover I (4), fixed cover II (6) are same structure; Fixed cover is a tubular body; The internal orifice at fixed cover two ends is angle (4-6-1), and the angle of angle (4-6-1) is 30 degree, on the tube wall at fixed cover two ends, intersects to be provided with several gap (4-6-2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203507128U CN202225046U (en) | 2011-09-19 | 2011-09-19 | Special clamping fixture for grinding valve core of V-shaped globe valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203507128U CN202225046U (en) | 2011-09-19 | 2011-09-19 | Special clamping fixture for grinding valve core of V-shaped globe valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202225046U true CN202225046U (en) | 2012-05-23 |
Family
ID=46075652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203507128U Expired - Fee Related CN202225046U (en) | 2011-09-19 | 2011-09-19 | Special clamping fixture for grinding valve core of V-shaped globe valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202225046U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072019A (en) * | 2013-01-11 | 2013-05-01 | 吴忠仪表有限责任公司 | Internally-supported gapless spool mandrel for V-shaped ball valve |
| CN107160266A (en) * | 2017-06-26 | 2017-09-15 | 中国人民解放军第五七二工厂 | A kind of minor valve valve element lapping apparatus |
-
2011
- 2011-09-19 CN CN2011203507128U patent/CN202225046U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103072019A (en) * | 2013-01-11 | 2013-05-01 | 吴忠仪表有限责任公司 | Internally-supported gapless spool mandrel for V-shaped ball valve |
| CN103072019B (en) * | 2013-01-11 | 2015-06-17 | 吴忠仪表有限责任公司 | Internally-supported gapless spool mandrel for V-shaped ball valve |
| CN107160266A (en) * | 2017-06-26 | 2017-09-15 | 中国人民解放军第五七二工厂 | A kind of minor valve valve element lapping apparatus |
| CN107160266B (en) * | 2017-06-26 | 2023-12-15 | 中国人民解放军第五七二一工厂 | Valve core grinding device for small valve |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202539614U (en) | Double-taper sleeve split adjustable turning and grinding mandrel device | |
| CN103639535A (en) | Rapidly-clamping clamp | |
| CN202225046U (en) | Special clamping fixture for grinding valve core of V-shaped globe valve | |
| CN106180776A (en) | A kind of thin-wall flange precision turning clamp | |
| CN103949847A (en) | Method of processing steam turbine control valve long thin-wall sleeve by utilizing support device | |
| CN201257600Y (en) | Eccentric shaft gripper | |
| CN202162406U (en) | Thin-wall cylinder type part turning clamp | |
| CN202147160U (en) | High-speed wire rod rolling mill eccentric bushing tool | |
| CN202123389U (en) | Aligning mould for machining of wind power main shaft | |
| CN107511725B (en) | Precise movable center device | |
| CN110125439B (en) | Device for thin-wall bushing unstressed clamping finish turning inner hole and using method | |
| CN202240574U (en) | Special clamping fixture for machining valve core shaft hole of V-shaped ball valve | |
| CN204262395U (en) | A kind of tile type fixture for thin-wall workpiece | |
| CN201350563Y (en) | Thin-wall sleeve processing clamp | |
| CN203509697U (en) | Numerical control turning locating tool of oil cylinder assembly | |
| CN203578787U (en) | Self-centering flange frame for rear tailstock | |
| CN209970186U (en) | Dense bead mandrel for machining sleeve type workpiece | |
| CN203592311U (en) | Clamp capable of clamping workpiece rapidly | |
| CN208628467U (en) | Centering elastic expanding fixture | |
| CN203292902U (en) | Engine starting gear fixing seat turning tooling | |
| CN113857767A (en) | Tool head and method for self-adaptive machining and forming of micro-texture on surface of curved-surface thin-wall part | |
| CN207914615U (en) | A kind of Internal hole positioning machining tool | |
| CN203650238U (en) | Grinding thin-walled sleeve tooling | |
| CN203448701U (en) | Finish turning clamp used in middle adjustment core of circular knitting machine | |
| CN107856238B (en) | Insulator casting mold and outer square forming part thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20140919 |
|
| EXPY | Termination of patent right or utility model |