CN220365805U - Floating joint and translation device - Google Patents
Floating joint and translation device Download PDFInfo
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- CN220365805U CN220365805U CN202321868231.5U CN202321868231U CN220365805U CN 220365805 U CN220365805 U CN 220365805U CN 202321868231 U CN202321868231 U CN 202321868231U CN 220365805 U CN220365805 U CN 220365805U
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- floating joint
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- 238000010586 diagram Methods 0.000 description 7
- 238000005192 partition Methods 0.000 description 7
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
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Abstract
The utility model provides a floating joint and a translation device, wherein the floating joint comprises: a main body, a floating member and an elastic member; the guide part is arranged on the main body, the through hole and the assembly part are arranged on the floating piece, the floating piece is sleeved on the outer side of the guide part through the through hole, an avoidance gap is formed between the inner wall of the through hole and the guide part, and the elastic piece is connected between the main body and the floating piece. Compared with the prior art, the floating joint has the advantages that the avoidance gap is formed between the through hole of the floating piece and the guide part, so that the floating piece can incline for a larger angle range relative to the guide part, the angle error of the telescopic structure of the translation driving assembly relative to the moving piece is compensated, the avoidance gap can compensate the deviation of the motion axis of the telescopic structure of the translation driving assembly relative to the motion axis of the moving piece, and the telescopic structure of the translation driving assembly can be stably connected with the driven moving piece.
Description
Technical Field
The utility model relates to the technical field of driving components, in particular to a floating joint and a translation device.
Background
The floating joint is a common part of the air cylinder, when the direction and the stress point of the driving force of the air cylinder are not in the same straight line, the shaft rod is easy to deform, the floating joint can be used for absorbing or correcting offset, flexible connection is realized, related parts and equipment are protected, the operation is stable, and the service life of the equipment is prolonged.
The existing floating joint generally adopts a ball joint to eliminate the angle error between a moving piece and a telescopic structure of a translational driving assembly, but the angle error which can be eliminated by the ball joint is smaller, and the angle compensation effect is poorer.
Disclosure of Invention
The utility model aims to overcome the defects and shortcomings in the prior art and provides a floating joint and a translation device.
One embodiment of the present utility model provides a floating joint comprising: a main body, a floating member and an elastic member;
the guide part is arranged on the main body, the through hole and the assembly part are arranged on the floating piece, the floating piece is sleeved on the outer side of the guide part through the through hole, an avoidance gap is formed between the inner wall of the through hole and the guide part, and the elastic piece is connected between the main body and the floating piece.
Compared with the prior art, the floating joint has the advantages that the avoidance gap is formed between the through hole of the floating piece and the guide part, so that the floating piece can incline for a larger angle range relative to the guide part, the angle error of the telescopic structure of the translation driving assembly relative to the moving piece is compensated, the avoidance gap can compensate the deviation of the motion axis of the telescopic structure of the translation driving assembly relative to the motion axis of the moving piece, and the telescopic structure of the translation driving assembly can be stably connected with the driven moving piece.
In some alternative embodiments, the floating member includes a floating plate and a connection plate connected to each other, the connection plate is provided with the fitting portion, the connection plate extends along the guiding direction of the guiding portion, and the floating plate is provided with the through hole.
In some optional embodiments, the main body is provided with two limiting plates, the two limiting plates are located at two ends of the guiding part, and the elastic piece abuts against one of the limiting plates.
In some optional embodiments, the main body is provided with a threaded locking member and a limiting head, the threaded locking member is in threaded fit with the main body, the guiding part is located between the threaded locking member and the limiting head, and the two limiting plates are sleeved on the outer sides of the guiding part and respectively abut against the threaded locking member and the limiting head.
In some alternative embodiments, the elastic member is a spring, which is sleeved outside the guide portion.
In some alternative embodiments, two elastic members are provided on the main body, the elastic members being located on opposite sides of the floating member, respectively.
In some optional embodiments, the two opposite sides of the floating member are respectively provided with a partition board, the partition board is sleeved on the outer side of the guiding part, and the elastic member correspondingly abuts against the partition board.
In some alternative embodiments, when the floating member is inclined relative to the guide portion, a maximum angle of an included angle formed between an axis of the through hole and a guiding direction of the guide portion is 12 ° to 20 °.
In some alternative embodiments, the clearance gap is 2-4 mm from the guide portion in a direction perpendicular to the guide portion.
Another embodiment of the present utility model provides a translation device, comprising: the telescopic structure of the translation driving assembly is connected with the assembly part or the main body of the floating joint.
In order that the utility model may be more clearly understood, specific embodiments thereof will be described below with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic view of a floating joint according to a first embodiment of the present utility model;
FIG. 2 is an exploded view of a floating joint according to a first embodiment of the present utility model;
FIG. 3 is a cross-sectional view of a floating joint according to a first embodiment of the present utility model;
FIG. 4 is a schematic view of a floating joint according to a second embodiment of the present utility model;
FIG. 5 is a schematic view of a floating joint according to a third embodiment of the present utility model;
FIG. 6 is a schematic view of a floating joint according to a fourth embodiment of the present utility model;
FIG. 7 is a schematic view of a floating joint according to a fifth embodiment of the present utility model;
fig. 8 is a schematic structural diagram of a translation device according to a first embodiment of the present utility model.
Reference numerals illustrate:
10. a main body; 11. a guide part; 12. a guide sleeve; 13. a limiting plate; 14. a threaded locking member; 15. a positioning head; 20. a floating member; 21. a through hole; 22. an assembling portion; 23. avoidance gap; 24. a floating plate; 25. a connecting plate; 26. a partition plate; 30. an elastic member; 40. a translational drive assembly; 41. a telescopic structure; 50. a moving member.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. In the description of the present utility model, unless otherwise indicated, the meaning of "plurality" is 2 or more, and the meaning of "several" is 1 or more. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated unless otherwise indicated.
Referring to fig. 1, a schematic structural diagram of a floating joint according to a first embodiment of the present utility model is shown, where the floating joint includes: a main body 10, a floating member 20, and an elastic member 30.
Referring to fig. 2 and 3, fig. 2 is an exploded view of a floating joint according to a first embodiment of the present utility model, and fig. 3 is a cross-sectional view of the floating joint according to the first embodiment of the present utility model, a guide portion 11 is provided on the main body 10, a through hole 21 and an assembling portion 22 are provided on the floating member 20, the floating member 20 is sleeved outside the guide portion 11 through the through hole 21, a clearance gap 23 is formed between an inner wall of the through hole 21 and the guide portion 11, and the elastic member 30 is connected between the main body 10 and the floating member 20. The fitting portion 22 is mounted on the moving member 50 driven by the translational driving assembly 40, and the main body 10 is mounted on the telescopic structure 41 of the translational driving assembly 40, however, it is also possible that the fitting portion 22 is mounted on the telescopic structure 41 and the main body 10 is disposed on the moving member 50. In the present embodiment, the translation driving unit 40 is taken as an air cylinder, the telescopic structure 41 is a piston rod of the air cylinder, the fitting portion 22 is connected to the moving member 50, and the air cylinder is connected to the main body 10.
An avoidance gap 23 is formed between the through hole 21 of the floating member 20 and the guide part 11, so that the floating member 20 can incline for a larger angle range relative to the guide part 11, thereby being beneficial to compensating the angle error of the telescopic rod of the air cylinder relative to the moving direction of the moving member 50, and the avoidance gap 23 can also compensate the vertical deviation of the moving path of the piston rod relative to the moving member 50, thereby effectively improving the coordination stability of the piston rod and the moving member 50, reducing the probability of failure when the air cylinder drives the moving member 50 and lowering the maintenance cost.
When the piston rod of the air cylinder drives the moving member 50 to move to the designated position, in order to ensure that the moving member 50 stops accurately, a limiting structure is usually arranged to limit the moving member 50 to move continuously, but due to errors, the piston rod of the air cylinder is difficult to push the moving member 50 to the designated position accurately, and the extending length of the piston rod is left, so that the moving member 50 cannot reach the designated position, but the piston rod is also prevented from bending due to the fact that the moving member 50 cannot move continuously. When the piston rod of the cylinder drives the moving member 50 to move to a designated position, the moving member 50 and the floating member 20 stop moving, and the piston rod continues to move, so that the main body 10 is close to the assembling portion 22 under the movement of the guiding portion 11, that is, the floating member 20 moves along the guiding portion 11 relative to the main body 10, so that the assembling portion 22 presses the elastic member 30, at this time, the elastic member 30 elastically deforms to buffer the main body 10, so that the movement speed of the piston rod is reduced, the impact of the piston rod is effectively reduced, the stability and durability of the whole cylinder are improved, and the excessive movement amount generated by excessive extension of the piston rod can be absorbed.
The structure of the floating member 20 may be selected according to practical needs, and in some alternative embodiments, the floating member 20 includes a floating plate 24 and a connecting plate 25 connected to each other, the connecting plate 25 is provided with the fitting portion 22, the connecting plate 25 extends along the guiding direction of the guiding portion 11, and the floating plate 24 is provided with the through hole 21. Referring to fig. 4 and 5, fig. 4 is a schematic structural diagram of a floating joint according to a second embodiment of the present utility model, and fig. 5 is a schematic structural diagram of a floating joint according to a third embodiment of the present utility model, of course, the floating member 20 may also include only a floating plate 24, the floating plate 24 is provided with an assembling portion 22, and the position of the assembling portion 22 relative to the floating plate 24 and the structure of the assembling portion 22 may also be selected to be suitable for practical use, which is not limited to this example.
In some alternative embodiments, two limiting plates 13 are disposed on the main body 10, the two limiting plates 13 are located at two ends of the guiding portion 11, the elastic member 30 abuts against one of the limiting plates 13, and the limiting plates 13 are used for limiting positions of the elastic member 30 and the floating member 20, so that the elastic member 30 and the floating member 20 are maintained between the two limiting plates 13.
In order to facilitate the installation of the limiting plate 13, the elastic member 30 and the floating member 20, in some alternative embodiments, the main body 10 is provided with a threaded locking member 14 and a limiting head 15, the threaded locking member 14 is in threaded engagement with the main body 10, the guiding portion 11 is located between the threaded locking member 14 and the limiting head 15, and the two limiting plates 13 are sleeved on the outer sides of the guiding portion 11 and respectively abut against the threaded locking member 14 and the limiting head 15. After the limiting plate 13, the elastic piece 30 and the floating piece 20 are arranged on the main body 10, the elastic piece 30, the floating piece 20 and the two limiting plates 13 are limited by matching the threaded locking piece 14 and the limiting head 15, and the threaded locking piece 14 is convenient to assemble and disassemble.
The structure of the elastic member 30 may be appropriately designed according to practical needs, and in some alternative embodiments, the elastic member 30 is a spring, which is sleeved on the outer side of the guide portion 11, so as to facilitate stable installation of the elastic member 30.
In some alternative embodiments, the main body 10 is provided with two elastic members 30, the elastic members 30 are respectively located at two opposite sides of the floating member 20, and the two elastic members 30 can realize bidirectional floating of the floating member 20, so that when the piston rod of the cylinder is extended and retracted, the floating member 20 can absorb the redundant movement amount of the piston rod, and bidirectional buffering can also be realized. Referring to fig. 6 and 7, fig. 6 is a schematic structural diagram of a floating joint according to a fourth embodiment of the present utility model, and fig. 7 is a schematic structural diagram of a floating joint according to a fifth embodiment of the present utility model, however, in other embodiments, only a single elastic member 30 may be provided, and the position of the elastic member 30 may be set to one side of the floating member 20 according to actual needs.
In order to make the contact surface between the elastic member 30 and the floating member 20 flat, so that the elastic member 30 can be stably abutted against the floating member 20, in some alternative embodiments, two opposite sides of the floating member 20 are respectively provided with a partition plate 26, the partition plate 26 is sleeved on the outer side of the guide portion 11, and the elastic member 30 is correspondingly abutted against the partition plate 26.
In some alternative embodiments, when the floating member 20 is inclined relative to the guiding portion 11, the maximum angle of the included angle formed between the axis of the through hole 21 and the guiding direction of the guiding portion 11 is 12 ° to 20 °, and the axis of the piston rod of the cylinder is parallel to the guiding direction of the guiding portion 11, so that the maximum angle of the offset of the axis of the piston rod of the cylinder relative to the floating member 20 can reach 12 ° to 20 °, which improves the angle supplement provided by the floating joint, better eliminates the angle error, and makes the translational driving assembly 40 operate stably. In the present embodiment, the maximum angle of the angle formed between the axis of the through hole 21 and the guiding direction of the guiding portion 11 is 15 °.
In some alternative embodiments, when the axis of the guide part 11 is coincident with the axis of the through hole 21, that is, when the guide part 11 is located at the middle position of the through hole 21, the distance between the avoidance gap 23 and the guide part 11 in the direction perpendicular to the guide part 11 is 2-4 mm, the avoidance gap 23 enables the guide part 11 to deviate a certain distance from the floating part 20 in the direction perpendicular to the guide part 11, and further compensates the deviation distance between the moving part 50 and the piston rod in the direction perpendicular to the moving direction of the moving part 50, so that the stability is prevented from being affected by the deviation of the position where the piston rod applies force to the moving part 50 through the floating joint. In the present embodiment, the clearance between the escape gap 23 and the guide 11 in the direction perpendicular to the guide 11 is 3mm.
Referring to fig. 8, a schematic structural diagram of a translation device according to a first embodiment of the present utility model, a floating joint as described above may be applied to the translation device, and the translation device includes: a translational drive assembly 40 and a floating joint as described above, the telescopic structure 41 of the translational drive assembly 40 being connected to the fitting 22 or body 10 of the floating joint. The translational drive assembly 40 may be a pneumatic cylinder, hydraulic cylinder, electric cylinder, or the like.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A floating joint, comprising: a main body, a floating member and an elastic member;
the guide part is arranged on the main body, the through hole and the assembly part are arranged on the floating piece, the floating piece is sleeved on the outer side of the guide part through the through hole, an avoidance gap is formed between the inner wall of the through hole and the guide part, and the elastic piece is connected between the main body and the floating piece.
2. A floating joint as claimed in claim 1, wherein: the floating piece comprises a floating plate and a connecting plate which are connected with each other, the connecting plate is provided with an assembling part, the connecting plate extends along the guiding direction of the guiding part, and the floating plate is provided with a through hole.
3. A floating joint as claimed in claim 1, wherein: the main body is provided with two limiting plates, the two limiting plates are positioned at two ends of the guide part, and the elastic piece is abutted to one of the limiting plates.
4. A floating joint according to claim 3, wherein: the main body is provided with a thread locking member and a limiting head, the thread locking member is in threaded fit with the main body, the guide part is located between the thread locking member and the limiting head, and the two limiting plates are sleeved on the outer side of the guide part and respectively abut against the thread locking member and the limiting head.
5. A floating joint as claimed in claim 1, wherein: the elastic piece is a spring, and the spring is sleeved on the outer side of the guide part.
6. A floating joint according to any one of claims 1 to 5, wherein: the main body is provided with two elastic pieces, and the elastic pieces are respectively positioned on two opposite sides of the floating piece.
7. A floating joint as claimed in claim 6, wherein: the opposite sides of the floating piece are respectively provided with a baffle, the baffle is sleeved on the outer side of the guide part, and the elastic piece is correspondingly abutted to the baffle.
8. A floating joint according to any one of claims 1 to 5, wherein: when the floating piece inclines relative to the guide part, the maximum angle of an included angle formed between the axis of the through hole and the guide direction of the guide part is 12-20 degrees.
9. A floating joint according to any one of claims 1 to 5, wherein: the distance between the avoidance gap and the guide part in the guide direction perpendicular to the guide part is 2-4 mm.
10. A translation device, comprising: a translational drive assembly and a floating joint according to any one of claims 1 to 9, the telescopic structure of the translational drive assembly being connected to the mounting or body of the floating joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321868231.5U CN220365805U (en) | 2023-07-14 | 2023-07-14 | Floating joint and translation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321868231.5U CN220365805U (en) | 2023-07-14 | 2023-07-14 | Floating joint and translation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220365805U true CN220365805U (en) | 2024-01-19 |
Family
ID=89517153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321868231.5U Active CN220365805U (en) | 2023-07-14 | 2023-07-14 | Floating joint and translation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220365805U (en) |
-
2023
- 2023-07-14 CN CN202321868231.5U patent/CN220365805U/en active Active
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