CN208945673U - A kind of self-centering hydraulic fixture - Google Patents
A kind of self-centering hydraulic fixture Download PDFInfo
- Publication number
- CN208945673U CN208945673U CN201821076781.2U CN201821076781U CN208945673U CN 208945673 U CN208945673 U CN 208945673U CN 201821076781 U CN201821076781 U CN 201821076781U CN 208945673 U CN208945673 U CN 208945673U
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- Prior art keywords
- fixture block
- fixture
- sleeve
- self
- gear
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Abstract
The utility model mainly provides a kind of self-centering hydraulic fixture, the self-centering hydraulic fixture includes the first fixture block, second fixture block, oil cylinder, sleeve and gear, first fixture block and the horizontal Relative distribution of the second fixture block, rack gear is provided on first fixture block and the sleeve, the gear connects first fixture block and the sleeve by the rack gear, the sleeve and first fixture block are distributed in the two sides of the gear, the oil cylinder includes piston rod, the sleeve and second fixture block are connected to the piston rod, first fixture block and second fixture block can move in the opposite direction under the driving of the oil cylinder.The self-centering hydraulic fixture is able to solve clamp wear big and bar and axis centre axis alignment difficulties, the low technical problem of production efficiency.
Description
Technical field
The utility model relates to a kind of fixture more particularly to a kind of self-centering hydraulic fixtures.
Background technique
Currently, hydraulically operated fixture of the machine tool fixture using V iron and corner oil cylinder composition, by the part locating clip of bar shape
Tight: by the opening up placement of vee-block, bar is placed in vee-block opening, and a positioning block is provided in corner oil cylinder and presss from both sides bar
Tightly.Since stress is larger in use for fixture V shape iron, abrasion can be generated, to be periodically adjusted, guarantee clamp central with
Bit central is consistent, and the concentricity of the workpiece hole and outer diameter that not so process can be overproof.Meanwhile when the bar for completing a kind of specification
After shape or tubular workpiece assembly, then when being assembled to the rod-shaped or tubular workpiece of another specification, it is necessary to adjust the center of drill bit
Axis, and the adjustment of central axis is relatively difficult.Therefore, using above-mentioned hydraulically operated fixture, not only clamp wear is big and bar and brill
Head central axis alignment is relatively difficult, and production efficiency is low.
Therefore, it is necessary to provide a kind of novel self-centering hydraulic fixture, to solve or at least alleviate above-mentioned segmental defect.
Utility model content
The main purpose of the utility model is to provide a kind of self-centering hydraulic fixture, it is intended to solve clamp wear greatly and bar
With axis centre axis alignment difficulties, the low technical problem of production efficiency.
To achieve the above object, the utility model provides a kind of self-centering hydraulic fixture, the fixture include the first fixture block,
Second fixture block, oil cylinder, sleeve and gear, first fixture block and the horizontal Relative distribution of the second fixture block, first fixture block
Be provided with rack gear on the sleeve, the gear connects first fixture block and the sleeve, the set by the rack gear
Cylinder and first fixture block are distributed in the two sides of the gear, and the oil cylinder includes piston rod, the sleeve and second folder
Block is connected on the piston rod, and first fixture block and second fixture block can be under the drivings of the oil cylinder in the opposite direction
Movement.
Preferably, the first circular hole and the second circular hole are provided on the piston rod, second fixture block includes linkage section, institute
Linkage section is stated to connect by second circular hole with the piston rod.
Preferably, the piston rod includes first segment and second segment, and first circular hole and second circular hole are set to
On the first segment, the diameter of the second segment is greater than the diameter of the first segment, and the linkage section of second fixture block is connected to
Second circular hole, and abut the second segment.
Preferably, the sleeve is socketed on the piston rod and is connect by first circular hole with the first segment, institute
It states sleeve to abut against on the linkage section, the sleeve, linkage section, second segment are sequentially distributed.
Preferably, the rack gear includes upper rack and lower rack gear, and the upper rack is set on the downside of first fixture block, institute
It states lower rack gear to be set on the sleeve, is provided with the gear between the upper rack and the lower rack gear.
Preferably, first fixture block and second fixture block are V-arrangement fixture block.
Preferably, the angle part of the V-arrangement fixture block is groove.
Preferably, first collet and the second collet material are iron.
Preferably, the central axis of first collet and second collet is overlapped.
Preferably, first fixture block and second fixture block are set on the workbench.
In technical solutions of the utility model, fixture includes the first fixture block, the second fixture block, oil cylinder, sleeve and gear, the first folder
Block and the horizontal Relative distribution of the second fixture block, rack gear is provided on the first fixture block and sleeve, and gear passes through rack gear connection first
Fixture block and sleeve, oil cylinder connect the second fixture block and sleeve, and the first fixture block and the second fixture block can be under the drivings of oil cylinder towards Xiang Fanfang
To movement.It being driven by oil cylinder, drive is connected to the second fixture block and the equidirectional movement of oil cylinder on oil cylinder, meanwhile, pass through gear
Transmission effect drives the movement of the first fixture block opposite direction, in this way, by the driving of oil cylinder, the first fixture block and the second fixture block it is opposite
Or the clamping and release of the first fixture block and the second fixture block mutually are realized from movement.Bar is clamped with two fixture blocks, no matter bar
How diameter changes, and can ensure that the center of bar is constant, i.e., always on the center line of the first fixture block and the second fixture block,
It does not need to adjust to the central axis of fixture block or drill bit, improves production efficiency.Meanwhile two pieces of collet horizontal directions by
Power substantially reduces the stress of collet, reduces the abrasion of fixture block.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, the structure that can also be shown according to these attached drawings obtains other attached drawings.
Fig. 1 is a kind of main view of self-centering hydraulic fixture of the utility model；
Fig. 2 is a kind of partial schematic diagram of self-centering hydraulic fixture of the utility model.
Drawing reference numeral explanation:
| Label | Title | Label | Title |
| 1 | First fixture block | 2 | Second fixture block |
| 3 | Oil cylinder | 4 | Gear |
| 5 | Piston rod | 6 | Sleeve |
| 7 | Upper rack | 8 | Lower rack gear |
| 11 | Groove | 21 | Linkage section |
| 51 | First segment | 52 | Second segment |
| 510 | First circular hole | 511 | Second circular hole |
The embodiments will be further described with reference to the accompanying drawings for the realization, functional characteristics and advantage of the utility model aim.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describing, it is clear that described embodiment is only a part of the embodiment of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute in the utility model embodiment
It is only used for explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, such as
When the fruit particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being such as related to " first ", " second " in the present invention is used for description purposes only, and cannot manage
Solution is its relative importance of indication or suggestion or the quantity for implicitly indicating indicated technical characteristic.Define as a result, " the
One ", the feature of " second " can explicitly or implicitly include at least one of the features.It is " more in the description of the present invention,
It is a " it is meant that at least two, such as two, three etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " connection ", " fixation " etc. should do broad sense reason
Solution, for example, " fixation " may be a fixed connection, may be a detachable connection, or integral；It can be mechanical connection, it can also
To be electrical connection；It can be directly connected, the connection inside two elements can also be can be indirectly connected through an intermediary
Or the interaction relationship of two elements, unless otherwise restricted clearly.It for the ordinary skill in the art, can be with
The concrete meaning of above-mentioned term in the present invention is understood as the case may be.
It in addition, the technical solution between each embodiment of the utility model can be combined with each other, but must be with ability
Based on domain those of ordinary skill can be realized, it will be understood that when the combination of technical solution appearance is conflicting or cannot achieve
The combination of this technical solution is not present, also not within the protection scope of the requires of the utility model.
- Fig. 2 referring to Fig.1, embodiment according to the present utility model, the utility model provide a kind of self-centering hydraulic fixture,
Fixture includes the first fixture block 1, the second fixture block 2, oil cylinder 3 and gear 4, the collet level of the collet of the first fixture block 1 and the second fixture block 2
Relative distribution, oil cylinder 3 connect the first fixture block 1 and the second fixture block 2, are provided with rack gear on the first fixture block 1 and oil cylinder 3, gear 4 passes through
Rack gear connects the first fixture block 1, and sleeve and the first fixture block are distributed in the two sides of gear 4, and oil cylinder 3 includes piston rod 5, sleeve 6 and the
Two fixture blocks 2 are connected on piston rod 5, and the first fixture block 1 and the second fixture block 2 can move in the opposite direction under the driving of oil cylinder 3.
In the utility model above-described embodiment, fixture includes the first fixture block 1, the second fixture block 2, oil cylinder 3, sleeve 6 and gear
4, the first fixture block 1 and the horizontal Relative distribution of the second fixture block 2 are provided with rack gear on first fixture block 1 and sleeve 6, and gear 4 passes through rack gear
The first fixture block 1 and sleeve 6 are connected, oil cylinder 3 connects sleeve 6 and the second fixture block 2, and the first fixture block 1 and the second fixture block 2 can be in oil cylinders 3
Driving under move in the opposite direction.It is driven by oil cylinder 3, drives the second fixture block 2 being connected on oil cylinder 3 and 3 Tongfang of oil cylinder
To movement, meanwhile, by the transmission effect of gear 4, the movement of 1 opposite direction of the first fixture block is driven, in this way, pass through the driving of oil cylinder 3,
The opposite or phase of first fixture block 1 and the second fixture block 2 realizes the clamping and release of the first fixture block 1 and the second fixture block 2 from movement.With
Two fixture blocks clamp bar, and no matter how the diameter of bar changes, and can ensure that the center of bar is constant, i.e., exist always
On the center line of first fixture block 1 and the second fixture block 2, does not need to adjust to the central axis of fixture block or drill bit, improve life
Produce efficiency.Meanwhile two pieces of collet horizontal direction forces, the stress of collet is substantially reduced, the abrasion of fixture block is reduced.
In addition, oil cylinder 3 includes piston rod 5, piston rod 5 includes first segment 51 and second segment 52, and the diameter of second segment 52 is big
In the first circular hole 510 and the second circular hole 511, the second fixture block 2 are provided on the diameter of first segment 51, piston rod 5 on first segment 51
Including linkage section 21, linkage section 21 is connect by the second circular hole 511 with piston rod 5.Sleeve 6 is socketed on piston rod 5 and by the
One circular hole 510 is connect with first segment 51, and sleeve 6 abuts against on linkage section 21, and sleeve 6, linkage section 21, second segment 52 successively divide
Cloth.Linkage section 21 and sleeve 6 and the connection type of piston rod 5 are to be bolted or pin connect, it is ensured that when the movement of piston rod 5
When, it can be moved synchronously with moving sleeve 6 and the second collet.
In addition, rack gear includes upper rack 7 and lower rack gear 8, upper rack 7 is set to 1 downside of the first fixture block, and lower rack gear is set to
On sleeve 6, gear 4 is provided between upper rack 7 and lower rack gear 8.When sleeve 6 is towards left movement, the transmission for passing through gear 4 is made
With the first fixture block 1 being made to move right, clamp material；When sleeve 6 is towards when right movement, the transmission for passing through gear 4 is made
With, the first fixture block 1 can be made to move downward, fixture block unclamp, can take or place material away.
Another kind preferred embodiment according to the present utility model, the first fixture block 1 and the second fixture block 2 are set to workbench
On, the first collet and the second collet V-shaped part be opposite to put and central axis is overlapped, it is ensured that workpiece, the first collet and the second folder
The central axis of head is overlapped.First fixture block 1 and the second fixture block 2 are V-arrangement fixture block, and the angle part of V-arrangement fixture block is groove 11, with V
The wedge angle of shape block is compared, and setting groove 11 can increase forced area, is reduced stress, is extended the service life of fixture block.First folder
Head and the second collet material are iron, naturally it is also possible to be stainless steels, any material that the utility model may be implemented is in this reality
With novel protection scope.
The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model,
It is all under the design of the utility model, equivalent structure transformation made based on the specification and figures of the utility model, or
Directly/be used in other related technical areas indirectly and be included in the scope of patent protection of the utility model.
Claims (10)
1. a kind of self-centering hydraulic fixture, which is characterized in that the self-centering hydraulic fixture includes the first fixture block, the second fixture block,
Oil cylinder, sleeve and gear, first fixture block and the horizontal Relative distribution of the second fixture block, first fixture block and the sleeve
On be provided with rack gear, the gear connects first fixture block and the sleeve by the rack gear, the sleeve and described the
One fixture block is distributed in the two sides of the gear, and the oil cylinder includes piston rod, and the sleeve and second fixture block are connected to institute
Piston rod is stated, first fixture block and second fixture block can move in the opposite direction under the driving of the oil cylinder.
2. self-centering hydraulic fixture as described in claim 1, which is characterized in that be provided on the piston rod the first circular hole and
Second circular hole, second fixture block includes linkage section, and the linkage section is connect by second circular hole with the piston rod.
3. self-centering hydraulic fixture as claimed in claim 2, which is characterized in that the piston rod includes first segment and second
Section, first circular hole and second circular hole are set on the first segment, and the diameter of the second segment is greater than described first
The diameter of section, the linkage section of second fixture block is connected to second circular hole, and abuts the second segment.
4. self-centering hydraulic fixture as claimed in claim 3, which is characterized in that the sleeve is socketed on the piston rod and leads to
It crosses first circular hole to connect with the first segment, the sleeve abuts against on the linkage section, the sleeve, linkage section,
Two sections are sequentially distributed.
5. self-centering hydraulic fixture as claimed in claim 4, which is characterized in that the rack gear includes upper rack and lower rack gear,
The upper rack is set on the downside of first fixture block, and the lower rack gear is set on the upside of the sleeve, the upper rack and institute
It states and is provided with the gear between lower rack gear.
6. self-centering hydraulic fixture as described in claim 1, which is characterized in that first fixture block and second fixture block are
V-arrangement fixture block.
7. self-centering hydraulic fixture as claimed in claim 6, which is characterized in that the angle part of the V-arrangement fixture block is groove.
8. self-centering hydraulic fixture as described in claim 1, which is characterized in that first fixture block and the second fixture block material
Material is iron.
9. self-centering hydraulic fixture as described in claim 1, which is characterized in that first fixture block and second fixture block
Central axis is overlapped.
10. self-centering hydraulic fixture as claimed in any one of claims 1-9 wherein further includes workbench, first fixture block and
Second fixture block is set on the workbench.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821076781.2U CN208945673U (en) | 2018-07-09 | 2018-07-09 | A kind of self-centering hydraulic fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821076781.2U CN208945673U (en) | 2018-07-09 | 2018-07-09 | A kind of self-centering hydraulic fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208945673U true CN208945673U (en) | 2019-06-07 |
Family
ID=66731759
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821076781.2U Expired - Fee Related CN208945673U (en) | 2018-07-09 | 2018-07-09 | A kind of self-centering hydraulic fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208945673U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227143A (en) * | 2021-12-13 | 2022-03-25 | 浙江博秦精密工业有限公司 | CNC finish machining method and tool clamp thereof |
| CN114273941A (en) * | 2021-12-29 | 2022-04-05 | 苏州思丹孚钻具有限公司 | Multi-angle self-adjusting axial positioning device and method for bit leg |
| CN115122128A (en) * | 2022-08-02 | 2022-09-30 | 湖南飞沃新能源科技股份有限公司 | Bar self-centering clamp and using method |
-
2018
- 2018-07-09 CN CN201821076781.2U patent/CN208945673U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114227143A (en) * | 2021-12-13 | 2022-03-25 | 浙江博秦精密工业有限公司 | CNC finish machining method and tool clamp thereof |
| CN114227143B (en) * | 2021-12-13 | 2022-07-26 | 浙江博秦精密工业有限公司 | CNC finish machining method and tool clamp thereof |
| CN114273941A (en) * | 2021-12-29 | 2022-04-05 | 苏州思丹孚钻具有限公司 | Multi-angle self-adjusting axial positioning device and method for bit leg |
| CN114273941B (en) * | 2021-12-29 | 2023-11-21 | 苏州思丹孚钻具有限公司 | Multi-angle self-adjusting axial positioning device and method for bit leg |
| CN115122128A (en) * | 2022-08-02 | 2022-09-30 | 湖南飞沃新能源科技股份有限公司 | Bar self-centering clamp and using method |
| CN115122128B (en) * | 2022-08-02 | 2024-02-20 | 湖南飞沃新能源科技股份有限公司 | Bar self-centering clamp and use method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190607 Termination date: 20200709 |