CN208342639U - A kind of valve input shaft assignment positioning fixture - Google Patents
A kind of valve input shaft assignment positioning fixture Download PDFInfo
- Publication number
- CN208342639U CN208342639U CN201820722675.0U CN201820722675U CN208342639U CN 208342639 U CN208342639 U CN 208342639U CN 201820722675 U CN201820722675 U CN 201820722675U CN 208342639 U CN208342639 U CN 208342639U
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- China
- Prior art keywords
- valve
- piston
- location hole
- hole
- shaft insertion
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Abstract
The utility model relates to valves to process positioning tool technical field, and in particular to a kind of valve input shaft assignment positioning fixture.It includes chuck body, shaft insertion hole is provided in chuck body, at least two location holes are symmetrically arranged in the chuck body of shaft insertion hole side, location hole is connected to shaft insertion hole, runner is provided in chuck body, runner is interconnected and is connected to all location holes simultaneously, and runner one end is provided with an inlet, piston is installed in location hole, piston is slidably connected with location hole inner wall, mandril is fixed on piston, location hole has cascaded surface, cascaded surface withstands piston, location hole is fixed with sealing element in one end relative to shaft insertion hole, chuck body has valve locating slot on the same axis direction with shaft insertion hole.The fixture can guarantee that input shaft does not generate displacement before clamping, to effectively improve the symmetry of valve, improve the yields of valve production, and reduce production cost.
Description
Technical field
The utility model relates to valves to process positioning tool technical field, and in particular to a kind of valve input shaft assignment locating clip
Tool.
Background technique
Input shaft is the important component of valve, in the production process of valve, and clamps the position that input shaft generates after adjusting valve centering
Shifting amount number will have a direct impact on valve symmetry and return positive force.In the prior art, crossing grip holder pinch valve input shaft is mostly used
Centering is carried out, but since input shaft is mostly cylinder, crossing grip holder can not be in the rotating direction of input shaft after clamping input shaft
Be fixed, and due to the smoothness of clamp pressure and crossing grip holder surface, input shaft easily along crossing grip holder surface scrolls from
And biggish displacement is generated, it is poor so as to cause valve symmetry, or even valve is scrapped, yields is reduced, production cost is increased.
Utility model content
Technical problem to be solved in the utility model are as follows: a kind of valve input shaft assignment positioning fixture is provided, can be solved
Input shaft can not be effectively fixed existing for existing crossing grip holder centering clamp, cause input shaft along crossing grip holder surface scrolls to
Biggish displacement is generated, to keep valve symmetry poor, or even scraps valve, yields is low, the defect of high production cost.
Used technical solution is to solve above-mentioned technical problem:
A kind of valve input shaft assignment positioning fixture, including chuck body, are provided with shaft insertion hole in the chuck body,
The shaft insertion hole is used to the input shaft insertion of valve carrying out centering positioning, right in the chuck body of the shaft insertion hole side
Title is provided at least two location holes, and the axis of the location hole intersects vertically with the axis of shaft insertion hole, the location hole
It is connected to shaft insertion hole, runner is provided in the chuck body, the runner is interconnected and is connected to all location holes simultaneously, and
Runner one end is provided with an inlet, and piston is equipped in the location hole, and the piston and the sliding of location hole inner wall connect
It connects, mandril is fixed on piston, the location hole has cascaded surface, and the cascaded surface withstands piston, for stopping piston
Deviate from location hole, the location hole is fixed with sealing element in one end relative to shaft insertion hole, and the chuck body is inserted with axis
Entering has valve locating slot on the same axis direction in hole, the valve locating slot is used for fixed valve body, and pressurization oil liquid passes through inlet
And flowed into through runner in the liquid storage chamber that sealing element, location hole inner wall and piston are constituted, as oil liquid pressure increase pushes mandril folder
Tight input shaft.
In a preferred embodiment, there are two the location holes, and the two sides of shaft insertion hole are relatively arranged on, institute
The axis angle for stating location hole is 180 °.
In a preferred embodiment, it is connected between the cascaded surface and piston by flexible body.
In a preferred embodiment, the flexible body is spring.
In a preferred embodiment, the sealing element is hex nut, and in mandril insertion hex nut.
In a preferred embodiment, between the hex nut and location hole inner wall, mandril and hex nut inner wall
Between, between piston and location hole inner wall be mounted on sealing ring.
In a preferred embodiment, there are multiple mounting holes, the mounting hole is used for will in the chuck body
Fixture is fixed on lathe.
The beneficial effects of the utility model are: by valve location hole positioning valve, the chuck body in shaft insertion hole side
On be symmetrically arranged at least two location holes, be movably installed with mandril in location hole, oil liquid entered into runner simultaneously by inlet
After injecting the confined space between piston, mandril and sealing element, oil liquid pushes mandril radially to resist input shaft, since runner connects
Logical, the oil pressure of each point in runner is identical, and only when all mandrils withstand input shaft, oil pressure can just be increased, and pass through piston
Mandril is pushed to squeeze input shaft to realize clamping.Fixture described in the utility model can guarantee that input shaft does not generate position before clamping
It moves, to effectively improve the symmetry of valve, improves the yields of valve production, and reduce production cost.
Detailed description of the invention:
Fig. 1 is: the sectional view of fixture described in the utility model；
Fig. 2 is: partial enlarged view of the fixture described in the utility model at location hole；
Fig. 3 is: the A-A sectional view of fixture described in the utility model；
Fig. 4 is: fixture clamping valve described in the utility model and the sectional view positioned to input shaft.
Each appended drawing reference in figure are as follows: 1: chuck body, 11: runner, 12: inlet, 13: shaft insertion hole, 14: mounting hole,
15: valve locating slot, 16: location hole, 161: cascaded surface, 21: sealing element, 22: mandril, 23: piston, 24: spring, 25,26,27,
28: sealing ring, 31,32: plug screw, 41: valve body, 42: input shaft.
Specific embodiment:
Below with reference to each attached drawing, the utility model is described in detail.
Fixture described in the utility model includes chuck body 1 combined with Figure 1 and Figure 2, is had in chuck body 1 through interior
The shaft insertion hole 13 in portion, shaft insertion hole 13 are used to for being inserted into the input shaft of valve.There is inlet 12 in 1 side of chuck body,
For connecting oil fuel tube, inlet 12 is connected to two orthogonal runners 11, the shaft insertion hole 13 in chuck body 1 simultaneously
Two sides are symmetrically arranged with location hole 16, and runner 11 is connected to location hole 16, and the axis of the axis of location hole 16 and shaft insertion hole 13
Line is vertical and intersects.It is located at 1 outer surface of chuck body in location hole 16 and is fixed with sealing element 21, it is preferred that sealing element 21 is
Hex nut, and sealing ring 26 is installed between 16 inner wall of sealing element 21 and location hole, it is connected in 21 internal slide of sealing element
There is mandril 22, mandril 22 passes through location hole 16 and can protrude into shaft insertion hole 13.The variation of 16 internal diameter of location hole, and there is cascaded surface
161, in cascaded surface 161 between shaft insertion hole 13, mandril 22 and sealing ring 28 is above installed, for closed mandril 22 and
Gap between location hole 16.A spring 24 is fixed on cascaded surface 161, spring 24 is placed on outside mandril 22, on spring 24
It is fixed with piston 23, piston 23 is fixedly connected with mandril 22, and piston 23 can be slided along 16 inner wall of location hole, be pacified on piston 23
Equipped with sealing ring 27 to the gap of sealing piston 23 and location hole 16.Oil liquid is injected by inlet 12 and is flowed into through runner 11
In location hole 16, wherein form liquid storage chamber between sealing element 21, mandril 22 and piston 23, oil liquid flows into liquid storage chamber, due to oil
Liquid continuous indentation band piston 23 move, piston 23 push mandril 22 moved to 13 direction of shaft insertion hole, at this point, spring 24 by
It pushes back and contracts with screen resilience；When stopping injection oil liquid and releasing stress, the screen resilience of spring 24 pushes up back piston 23 initially
Position is to drive mandril 22 to retract.And there are multiple mounting holes 14 in chuck body 1, the mounting hole 14 is used for fixture
It is fixed on lathe.
In conjunction with Fig. 3 and Fig. 4, the movement of the fixture clamping valve 41 and input shaft 42 is described in detail.By valve body 41
It is placed in valve locating slot 15 and locks, input shaft 41 passes through shaft insertion hole 13.Inlet 12 is connected into hydraulic device, and injects oil
Liquid, oil liquid push mandril 22 is radial to resist input shaft 42.Since runner 11 is interconnected, the oil liquid pressure phase of each point in runner 11
Together, therefore, only after all mandrils 22 all resist input shaft 42, the oil liquid pressure in runner 11 can just be increased, at this point,
Mandril 22 while radial clamping input shaft 42 prevent input shaft 42 to be displaced to guarantee that input shaft 42 positions centering, thus
The symmetry of valve is effectively improved, the yields of valve production is improved, and reduces production cost.
The above is only the preferred embodiment of the present invention, not thereby limits the patent protection of the utility model
Range, it is all with equivalent structure transformation made by the utility model specification and accompanying drawing content, directly or indirectly it is used in it
His relevant technical field similarly includes within the protection scope of the present utility model.
Claims (7)
1. a kind of valve inputs shaft assignment positioning fixture, which is characterized in that including chuck body, be provided in the chuck body
Shaft insertion hole, the shaft insertion hole are used to the input shaft insertion of valve carrying out centering positioning, the folder in the shaft insertion hole side
At least two location holes are symmetrically arranged on tool ontology, the axis of the location hole intersects vertically with the axis of shaft insertion hole,
The location hole is connected to shaft insertion hole, and runner is provided in the chuck body, and the runner is interconnected and is connected to institute simultaneously
There is location hole, and runner one end is provided with an inlet, piston, the piston and location hole are installed in the location hole
Inner wall is slidably connected, and mandril is fixed on piston, and the location hole has cascaded surface, and the cascaded surface withstands piston, thus with
In stopping piston to deviate from location hole, the location hole is fixed with sealing element, the fixture sheet in one end relative to shaft insertion hole
Body has valve locating slot on the same axis direction with shaft insertion hole, and the valve locating slot is used for fixed valve body, and pressurize oil liquid
It is flowed into the liquid storage chamber that sealing element, location hole inner wall and piston are constituted by inlet and through runner, as oil liquid pressure increases
Mandril is pushed to clamp input shaft.
2. a kind of valve as described in claim 1 inputs shaft assignment positioning fixture, which is characterized in that there are two the location holes,
And the two sides of shaft insertion hole are relatively arranged on, the axis angle of the location hole is 180 °.
3. a kind of valve as described in claim 1 inputs shaft assignment positioning fixture, which is characterized in that the cascaded surface and piston it
Between pass through flexible body connect.
4. a kind of valve as claimed in claim 3 inputs shaft assignment positioning fixture, which is characterized in that the flexible body is spring.
5. a kind of valve as described in claim 1 inputs shaft assignment positioning fixture, which is characterized in that the sealing element is hexagonal spiral shell
Mother, and in mandril insertion hex nut.
6. a kind of valve as claimed in claim 5 inputs shaft assignment positioning fixture, which is characterized in that the hex nut and positioning
Sealing ring is mounted between the inner wall of hole, between mandril and hex nut inner wall, between piston and location hole inner wall.
7. a kind of valve as described in claim 1 inputs shaft assignment positioning fixture, which is characterized in that have in the chuck body
Multiple mounting holes, the mounting hole are used to fixture being fixed on lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820722675.0U CN208342639U (en) | 2018-05-15 | 2018-05-15 | A kind of valve input shaft assignment positioning fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820722675.0U CN208342639U (en) | 2018-05-15 | 2018-05-15 | A kind of valve input shaft assignment positioning fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208342639U true CN208342639U (en) | 2019-01-08 |
Family
ID=64889268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820722675.0U Active CN208342639U (en) | 2018-05-15 | 2018-05-15 | A kind of valve input shaft assignment positioning fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208342639U (en) |
-
2018
- 2018-05-15 CN CN201820722675.0U patent/CN208342639U/en active Active
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