CN206966798U - A kind of fluid pressure type gear grinding clamp - Google Patents
A kind of fluid pressure type gear grinding clamp Download PDFInfo
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- CN206966798U CN206966798U CN201720579364.9U CN201720579364U CN206966798U CN 206966798 U CN206966798 U CN 206966798U CN 201720579364 U CN201720579364 U CN 201720579364U CN 206966798 U CN206966798 U CN 206966798U
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- mandrel
- piston
- pull bar
- expansion sleeve
- elastic expansion
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Abstract
The utility model discloses a kind of fluid pressure type gear grinding clamp, including body, mandrel and backing plate, pull bar and the elastic expansion sleeve being connected, mandrel is provided with endoporus, one end of pull bar is located in the endoporus, elastic expansion sleeve is coupled to the other end of the pull bar outside mandrel, elastic expansion sleeve is provided with the conical surface being engaged with mandrel, it is characterized in that the oil pocket being connected with endoporus is provided with mandrel, piston is provided with oil pocket, piston is coupled by piston rod with pull bar, the end of the body oil closed cavity, two actuator ports communicated with piston both sides oil pocket are provided with body or/and mandrel；Blind hole is provided with the end of piston adjacent body, the compression spring with body contacts is provided with blind hole；The utility model has the advantages of flexible positioning to workpiece, can prevent that excessive deformation occur in impact and elastic expansion sleeve, ensure that workpiece firm position and elastic expansion sleeve smoothly reset, can crudy and efficiency.
Description
Technical field
It the utility model is related to a kind of fixture, particularly the fluid pressure type fixture for roll flute processing.
Background technology
At present, when roll flute is processed, its fixture used mechanically pulls pull bar to drive elastic expansion sleeve to realize more
Axial movement, elastic expansion sleeve is supportted outside mandrel, deformation, with the endoporus of swelling workpiece, so as to fixed workpiece；But mechanically draw
Dynamic its pulling force of pull bar and speed are unmanageable, and its impact is larger, and excessive deformation easily occurs in elastic expansion sleeve, cause workpiece positioning not
Steady and elastic expansion sleeve is difficult to reset, and influences crudy and efficiency.
The content of the invention
The purpose of this utility model is to be directed to deficiencies of the prior art, there is provided a kind of fluid pressure type gear grinding clamp,
It has the advantages of flexible positioning to workpiece, can prevent that excessive deformation occur in impact and elastic expansion sleeve, ensure workpiece positioning
Firmly smoothly resetted with elastic expansion sleeve, can crudy and efficiency.
To reach above-mentioned purpose, a kind of fluid pressure type gear grinding clamp of the present utility model, including body, mandrel and the pad being connected
Plate, pull bar and elastic expansion sleeve, mandrel are provided with endoporus, and one end of pull bar is located in the endoporus, and elastic expansion sleeve is coupled to the drawing outside mandrel
The other end of bar, elastic expansion sleeve are provided with the conical surface being engaged with mandrel, it is characterised in that are provided with what is be connected with endoporus in mandrel
Oil pocket, is provided with piston in oil pocket, piston is coupled by piston rod with pull bar, the end of the body oil closed cavity, body or/
With two actuator ports that are communicated with piston both sides oil pocket are provided with mandrel；Blind hole is provided with the end of piston adjacent body, blind
The compression spring with body contacts is provided with hole.
In use, being alternately passed through hydraulic oil to two actuator ports, its piston driving pull bar is set first to be moved to body side, bullet
Property expansion set distending, fixed workpiece, after completing processing, piston driving pull bar moves backward again, and elastic expansion sleeve resets, unclamps workpiece；
During fixed workpiece, due to pulling pull bar using hydraulic way, plus the damping action of compression spring, it can prevent to rush
Hit and excessive deformation occur with elastic expansion sleeve, there is the advantages of flexible positioning, ensure that workpiece firm position and elastic expansion sleeve are smoothly multiple
Position, compression spring can also improve reset speed, can improve crudy and efficiency；
As further improvement of the utility model, the excircle coordinated in the excircle, body and oil pocket of piston and work
Sealing ring is equipped with the excircle of stopper rod and inner hole；Sealing can be improved；
As further improvement of the utility model, pin-and-hole, an anti-rotation are equipped with the piston end face adjacent with mandrel
Pin is provided with two pin-and-holes；The outside of pull bar in endoporus is provided with plane, and anti-rotation spiral shell corresponding with the plane is provided with mandrel
Nail；It can prevent piston from being rotated with pull bar, reduce abrasion and avoid the two from disengaging connection；
In summary, the utility model has the advantages of flexible positioning to workpiece, can prevent impact and elastic expansion sleeve
There is excessive deformation, ensure that workpiece firm position and elastic expansion sleeve smoothly reset, can crudy and efficiency.
Brief description of the drawings
Fig. 1 is the front view of the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of fluid pressure type gear grinding clamp, including be connected by bolt body 1, mandrel 2 and backing plate 3,
Pull bar 4 and elastic expansion sleeve 5, mandrel 2 are provided with endoporus 6, and one end of pull bar 4 is located in the endoporus 6, and elastic expansion sleeve 5 is coupled to outside mandrel 2
Pull bar 4 the other end, the conical surface 7 that elastic expansion sleeve 5 is engaged with mandrel 2, the oil being connected with endoporus 6 is additionally provided with mandrel 2
Chamber 8, oil pocket 8 is interior to be provided with piston 9, and piston 9 passes through thread connection, the body 1 by the piston rod 10 being integrally connected with pull bar 4
The end of oil closed cavity 8, the actuator port 11 communicated with the downside oil pocket of piston 9 is provided with body 1, in body 1 and mandrel 2
Provided with the actuator port 12 communicated with the upside oil pocket of piston 9；Blind hole is provided with the end of the adjacent body 1 of piston 9, is set in blind hole
There is the compression spring 13 contacted with body 1；The excircle and piston rod 10 that excircle, body 1 in piston 9 coordinate with oil pocket 8
Sealing ring 14 or 15 or 16 is equipped with the excircle coordinated with endoporus 6；It is equipped with the end face adjacent with mandrel 2 of piston 9
Pin-and-hole, a stop pin 17 are provided with two pin-and-holes；The outside of pull bar 4 in endoporus 6 is provided with four planes 18 that milling side processes,
It is provided with and 18 corresponding anti-turn screw 19 of a plane on mandrel 2；
In use, workpiece 20 is placed on backing plate 3, hydraulic oil alternately is passed through to two actuator ports 11,12, makes the band of piston 8
Dynamic pull bar 4 first moves to the side of body 1, the distending of elastic expansion sleeve 5, fixed workpiece 20；After completing processing, piston 8 drives pull bar 4 again
Reverse movement, elastic expansion sleeve 5 reset, unclamp workpiece 20；During fixed workpiece 20, due to pulling pull bar using hydraulic way
4, the damping action played plus compression spring 13, it can prevent from producing impact during distending and quantitative change occurred in elastic expansion sleeve 5
Shape, there is the advantages of flexible positioning, ensure that workpiece firm position and elastic expansion sleeve 5 smoothly reset, compression spring 5 may be used also during reset
Reset speed is improved, crudy and efficiency can be improved；
Sealing ring 14,15,16 can improve sealing；Stop pin 17 and anti-turn screw 19 can prevent 4 turns of piston 8 and pull bar
It is dynamic, reduce abrasion and avoid the two from disengaging connection；
The utility model is not limited to above-mentioned embodiment, as actuator port 12 also can only in the mandrel 2 and with piston 9
Side oil pocket communicates, and plane 18 can also be set to six, and they each fall within the protection domain of this patent.
Claims (3)
1. a kind of fluid pressure type gear grinding clamp, including body, mandrel and backing plate, pull bar and the elastic expansion sleeve being connected, mandrel is provided with interior
Hole, one end of pull bar are located in the endoporus, and elastic expansion sleeve is coupled to the other end of the pull bar outside mandrel, and elastic expansion sleeve is provided with mandrel
The conical surface being engaged, it is characterised in that the oil pocket being connected with endoporus is provided with mandrel, is provided with piston in oil pocket, piston passes through work
Stopper rod couples with pull bar, the end of the body oil closed cavity, is provided with body or/and mandrel and is communicated with piston both sides oil pocket
Two actuator ports；Blind hole is provided with the end of piston adjacent body, the compression spring with body contacts is provided with blind hole.
2. a kind of fluid pressure type gear grinding clamp as claimed in claim 1, it is characterised in that in the excircle, body and oil pocket of piston
Sealing ring is equipped with the excircle and piston rod of cooperation and the excircle of inner hole.
3. a kind of fluid pressure type gear grinding clamp as claimed in claim 1 or 2, it is characterised in that in the piston end face adjacent with mandrel
On be equipped with pin-and-hole, a stop pin is provided with two pin-and-holes；The outside of pull bar in endoporus is provided with plane, on mandrel be provided with
Anti-turn screw corresponding to the plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720579364.9U CN206966798U (en) | 2017-05-23 | 2017-05-23 | A kind of fluid pressure type gear grinding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720579364.9U CN206966798U (en) | 2017-05-23 | 2017-05-23 | A kind of fluid pressure type gear grinding clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206966798U true CN206966798U (en) | 2018-02-06 |
Family
ID=61410287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720579364.9U Active CN206966798U (en) | 2017-05-23 | 2017-05-23 | A kind of fluid pressure type gear grinding clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206966798U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109571067A (en) * | 2018-12-04 | 2019-04-05 | 无锡倍安杰机械科技有限公司 | A kind of hydraulic moving expansion set positioning mechanism |
| CN110773818A (en) * | 2019-11-27 | 2020-02-11 | 上海羿弓精密科技有限公司 | Cycloidal pin gear grinding clamp |
-
2017
- 2017-05-23 CN CN201720579364.9U patent/CN206966798U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109571067A (en) * | 2018-12-04 | 2019-04-05 | 无锡倍安杰机械科技有限公司 | A kind of hydraulic moving expansion set positioning mechanism |
| CN110773818A (en) * | 2019-11-27 | 2020-02-11 | 上海羿弓精密科技有限公司 | Cycloidal pin gear grinding clamp |
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