CN212264555U - Floatable clamping mechanism - Google Patents
Floatable clamping mechanism Download PDFInfo
- Publication number
- CN212264555U CN212264555U CN202020890462.6U CN202020890462U CN212264555U CN 212264555 U CN212264555 U CN 212264555U CN 202020890462 U CN202020890462 U CN 202020890462U CN 212264555 U CN212264555 U CN 212264555U
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- China
- Prior art keywords
- piston
- clamping mechanism
- floatable
- tight
- end cover
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- 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
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- 230000007246 mechanism Effects 0.000 title claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 15
- 238000009826 distribution Methods 0.000 claims description 4
- 239000010720 hydraulic oil Substances 0.000 abstract description 11
- 230000007423 decrease Effects 0.000 abstract description 4
- 238000003825 pressing Methods 0.000 abstract description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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Abstract
The utility model discloses a floatable clamping mechanism, including hydraulic pressure top and base, the top of base is provided with the end cover, and the setting in the end cover top outside is provided with the three pin that is the triangle-shaped subsection, the bottom of the three pin that is the triangle-shaped subsection respectively with base top threaded connection. This kind of floatable clamping mechanism is through pressing from both sides tight piece, the piston is top, push up tight piston rod, first piston, second piston and reset spring's cooperation is used, when making the top decline of people control hydraulic pressure support the top of work piece, the work piece gives the acting force on the piston is top, the top decline of piston pushes hydraulic oil in three second cavity through first piston, promote three top tight piston rod and three second piston rise, three top tight piston rod drives the one end of three tight piece of clamp and rises, and then make three tight piece of clamp can clip the work piece, three unsteady tight piece of clamp leans on hydraulic pressure to press from both sides tight work piece, and then can clip the work piece of different specifications.
Description
Technical Field
The utility model relates to a clamping mechanism specifically is a floatable clamping mechanism.
Background
The jig is a device for fixing a processing object to a correct position for receiving construction or inspection in a machine manufacturing process, and is also called a jig.
At present, most of clamps are the same in specification of clamping the workpiece, are difficult to meet the requirement of clamping different specifications, and have poor adaptability. We have therefore developed this and have proposed a floatable clamping mechanism.
SUMMERY OF THE UTILITY MODEL
The utility model relates to a floatable clamping mechanism, which comprises a hydraulic centre and a base, wherein the top of the base is provided with an end cover, the outer side of the top end of the end cover is provided with three pins in triangular distribution, the bottom ends of the three pins in triangular distribution are respectively in threaded connection with the top end of the base, the middle part of the top end of the end cover is provided with three fixed brackets and three clamping blocks which are distributed in a triangular shape, a workpiece is arranged between the three clamping blocks, the bottom end of the hydraulic center is attached to the top end of the workpiece, the inner cavity of the base is composed of a first cavity and three second cavities, the hydraulic center is fixedly connected with the output end of an external hydraulic cylinder.
As a preferred technical scheme of the utility model, it is three that is the triangle-shaped subsection the bottom of fixed bolster is fixed mounting respectively at end cover top middle part, and is three the middle part of pressing from both sides tight piece is articulated with the inside of three fixed bolster respectively, and is three the anti-skidding line has all been seted up to the looks remote site of pressing from both sides tight piece.
As a preferred technical scheme of the utility model, first cavity is located between the three second cavity, the bottom of first cavity inner chamber communicates with the bottom of three second cavity inner chamber respectively.
As a preferred technical scheme of the utility model, the outside of piston top is connected with the inside interlude of first cavity, the bottom of piston top and the middle part fixed connection on first piston top, the outside of first piston and the inner wall sliding connection of first cavity.
As a preferred technical scheme of the utility model, the middle part on end cover top is provided with first sealing washer, the inner wall and the top outer wall laminating of piston of first sealing washer, the top of piston is laminated with the bottom of work piece.
As a preferred technical scheme of the utility model, it is three the bottom of the tight piston rod in top is respectively with the middle part fixed connection on three second piston top, it is three the outer wall of second piston is laminated with the inner wall of three second cavity respectively, it is three the top of the tight piston rod in top is laminated with one side of three tight piece bottom respectively, is the three of triangle-shaped subsection reset spring's both ends respectively with the top and the end cover bottom fixed connection of the three second piston that are the triangle-shaped subsection.
As a preferred technical scheme of the utility model, the end cover bottom is provided with the three second sealing washer that is the triangle-shaped subsection, and is three the inner wall of second sealing washer respectively with the outside sliding connection of the tight piston rod in three top.
The utility model has the advantages that: this kind of floatable clamping mechanism is through pressing from both sides tight piece, the piston is top, push up tight piston rod, first piston, second piston and reset spring's cooperation is used, when making the top decline of people control hydraulic pressure support the top of work piece, the work piece gives the acting force on the piston is top, the top decline of piston pushes hydraulic oil in three second cavity through first piston, promote three top tight piston rod and three second piston rise, three top tight piston rod drives the one end of three tight piece of clamp and rises, and then make three tight piece of clamp can clip the work piece, three unsteady tight piece of clamp leans on hydraulic pressure to press from both sides tight work piece, and then can clip the work piece of different specifications.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of a floatable clamping mechanism of the present invention;
fig. 2 is a schematic perspective view of a floatable clamping mechanism of the present invention;
fig. 3 is a schematic top view of the floatable clamping mechanism of the present invention.
In the figure: 1. a hydraulic center; 2. a workpiece; 3. a clamping block; 4. a base; 5. the piston rod is tightly propped; 6. a first seal ring; 7. an end cap; 8. a second chamber; 9. a piston tip; 10. a second seal ring; 11. A return spring; 12. fixing a bracket; 13. a second piston; 14. a first piston; 15. a pin; 16. A first chamber.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.
Example (b): as shown in fig. 1, fig. 2 and fig. 3, the floating clamping mechanism of the present invention comprises a hydraulic center 1 and a base 4, wherein an end cover 7 is disposed on the top of the base 4, three pins 15 with triangular sections are disposed on the outer side of the top end of the end cover 7, the bottom ends of the three pins 15 with triangular sections are respectively in threaded connection with the top end of the base 4, three fixed brackets 12 with triangular sections and three clamping blocks 3 are disposed in the middle of the top end of the end cover 7, a workpiece 2 is disposed between the three clamping blocks 3, the bottom end of the hydraulic center 1 is attached to the top end of the workpiece 2, the inner cavity of the base 4 is composed of a first cavity 16 and three second cavities 8, a piston center 9 and a first piston 14 are disposed inside the first cavity 16, a tightening piston rod 5, a second piston 13 and a return spring 11 are disposed inside each of the three second cavities 8, the three return springs 11 are respectively disposed outside the three tightening piston rods, the hydraulic center 1 is fixedly connected with the output end of the external hydraulic cylinder.
Wherein, the bottom of the three fixed bolster 12 that is the triangle-shaped subsection is fixed mounting respectively in end cover 7 top middle part, and the middle part of three clamp piece 3 is articulated with the inside of three fixed bolster 12 respectively, and anti-skidding line has all been seted up to the looks remote site of three clamp piece 3, can increase the frictional force between clamp piece 3 and the work piece 2 through anti-skidding line, makes clamp piece 3 can be by more firm centre gripping work piece 2.
The first chamber 16 is located between the three second chambers 8, and the bottoms of the inner chambers of the first chamber 16 are respectively communicated with the bottoms of the inner chambers of the three second chambers 8, so that hydraulic oil in the first chamber 16 can flow into the three second chambers 8 under the pushing of the first piston 14 and the piston center 9.
The outer portion of the piston center 9 is connected with the inner portion of the first chamber 16 in a penetrating mode, the bottom end of the piston center 9 is fixedly connected with the middle portion of the top end of the first piston 14, the outer portion of the first piston 14 is connected with the inner wall of the first chamber 16 in a sliding mode, and when the piston center 9 moves downwards, the first piston 14 can push hydraulic oil in the first chamber 16 into the two second chambers 8.
The middle part of the top end of the end cover 7 is provided with the first sealing ring 6, the inner wall of the first sealing ring 6 is attached to the outer wall of the piston tip 9, the top end of the piston tip 9 is attached to the bottom end of the workpiece 2, and the sealing performance of the joint of the piston tip 9 and the end cover 7 can be improved through the first sealing ring 6, so that hydraulic oil is difficult to flow out from the joint of the piston tip 9 and the end cover 7.
Wherein, the bottom ends of the three tightening piston rods 5 are fixedly connected with the middle parts of the top ends of the three second pistons 13, the outer walls of the three second pistons 13 are respectively attached to the inner walls of the three second chambers 8, the top ends of the three tightening piston rods 5 are respectively attached to one side of the bottom ends of the three clamping blocks 3, the two ends of the three reset springs 11 are respectively fixedly connected with the top ends of the three second pistons 13 and the triangle of the bottom end of the end cover 7, when people control the hydraulic centre 1 to descend to abut against the top end of the workpiece 2, the workpiece 2 transmits acting force to the piston centre 9 through the clamping blocks 3, the piston centre 9 descends and pushes hydraulic oil into the three second chambers 8 through the first piston 14 to push the three tightening piston rods 5 and the three second pistons 13 to ascend, the three jacking piston rods 5 drive one ends of the three clamping blocks 3 to ascend, so that the three clamping blocks 3 can clamp workpieces, the three floating clamping blocks 3 clamp the workpieces 2 through hydraulic pressure, and the workpieces 2 of different specifications can be clamped.
Wherein, end cover 7 bottom is provided with three second sealing washer 10 that is the triangle-shaped subsection, and the inner wall of three second sealing washer 10 respectively with the outside sliding connection of three tight piston rod 5 in top, through second sealing washer 10, can increase the leakproofness of the tight piston rod 5 in top and the 7 junctions of end cover, make hydraulic oil difficult outflow from the tight piston rod 5 in top and the outflow of the 7 junctions of end cover.
When the clamping device works, a workpiece 2 is placed among the three clamping blocks 3, the extension of the external hydraulic cylinder is controlled, when the hydraulic center 1 descends to abut against the top end of the workpiece 2, the workpiece 2 transmits acting force to the piston center 9, the piston center 9 descends and pushes hydraulic oil in the first chamber 16 into the three second chambers 8 through the first piston 14, the hydraulic oil pushes the three jacking piston rods 5 and the three second pistons 13 to ascend and compress the three reset springs 11, the three jacking piston rods 5 drive one ends of the three clamping blocks 3 to ascend, so that the other ends of the three clamping blocks 3 clamp the workpiece 2, when the workpiece 2 does not need to be clamped, the external hydraulic cylinder is controlled to contract, the hydraulic center 1 is separated from the workpiece 2, the three jacking piston rods 5 and the three second pistons 13 respectively descend under the restoring force of the three reset springs 11, the three clamping blocks 3 tilt to release the workpiece 2, the three second pistons 13 push the hydraulic oil in the three second chambers 8 into the first chamber 16, the hydraulic oil pushes the first piston 14 and the piston center 9 to ascend, the piston center 9 drives the workpiece 2 to ascend, and the workpiece 2 is taken down.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A floatable clamping mechanism is characterized by comprising a hydraulic center (1) and a base (4), wherein an end cover (7) is arranged at the top of the base (4), three pins (15) distributed in a triangular manner are arranged on the outer side of the top end of the end cover (7), the bottoms of the three pins (15) distributed in a triangular manner are respectively in threaded connection with the top end of the base (4), three fixing supports (12) and three clamping blocks (3) distributed in a triangular manner are arranged in the middle of the top end of the end cover (7), a workpiece (2) is arranged between the three clamping blocks (3), the bottom end of the hydraulic center (1) is attached to the top end of the workpiece (2), an inner cavity of the base (4) is composed of a first cavity (16) and three second cavities (8), a piston center (9) and a first piston (14) are arranged inside the first cavity (16), the three second chambers (8) are internally provided with a jacking piston rod (5), a second piston (13) and a return spring (11), the three return springs (11) are respectively arranged outside the three jacking piston rods (5), and the hydraulic center (1) is fixedly connected with the output end of an external hydraulic cylinder.
2. A floating clamping mechanism as claimed in claim 1, characterized in that the bottom ends of three said fixed brackets (12) distributed in a triangle are respectively and fixedly installed at the middle of the top end of the end cover (7), the middle parts of three said clamping blocks (3) are respectively hinged with the inside of three fixed brackets (12), and the opposite ends of three said clamping blocks (3) are provided with anti-skid threads.
3. A floatable clamping mechanism according to claim 1, characterized in that said first chamber (16) is located between three second chambers (8), the bottom of the inner cavity of said first chamber (16) communicating with the bottom of the inner cavity of three second chambers (8), respectively.
4. A floatable clamping mechanism according to claim 1, characterized in that the outer part of the piston centre (9) is inserted into the inner part of the first chamber (16), the bottom end of the piston centre (9) is fixedly connected to the middle part of the top end of the first piston (14), and the outer part of the first piston (14) is slidably connected to the inner wall of the first chamber (16).
5. A floatable clamping mechanism according to claim 1, characterized in that the first sealing ring (6) is arranged in the middle of the top end of the end cap (7), the inner wall of the first sealing ring (6) is attached to the outer wall of the piston center (9), and the top end of the piston center (9) is attached to the bottom end of the workpiece (2).
6. A floating clamping mechanism according to claim 1, characterized in that the bottom ends of three said tightening piston rods (5) are fixedly connected to the middle of the top ends of three second pistons (13), the outer walls of three said second pistons (13) are respectively attached to the inner walls of three second chambers (8), the top ends of three said tightening piston rods (5) are respectively attached to one side of the bottom ends of three clamping blocks (3), and the two ends of three said return springs (11) in triangular distribution are respectively fixedly connected to the top ends of three second pistons (13) in triangular distribution and the bottom end of the end cap (7).
7. A floatable clamping mechanism according to claim 1, characterized in that said end cover (7) is provided with three second sealing rings (10) at its bottom end, and the inner walls of said three second sealing rings (10) are slidably connected to the outer portions of three tightening piston rods (5), respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020890462.6U CN212264555U (en) | 2020-05-25 | 2020-05-25 | Floatable clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020890462.6U CN212264555U (en) | 2020-05-25 | 2020-05-25 | Floatable clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212264555U true CN212264555U (en) | 2021-01-01 |
Family
ID=73881042
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020890462.6U Expired - Fee Related CN212264555U (en) | 2020-05-25 | 2020-05-25 | Floatable clamping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212264555U (en) |
-
2020
- 2020-05-25 CN CN202020890462.6U patent/CN212264555U/en not_active Expired - Fee Related
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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: 20210101 |