CN109926857B - Driving method of clamping device - Google Patents
Driving method of clamping device Download PDFInfo
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- CN109926857B CN109926857B CN201910328171.XA CN201910328171A CN109926857B CN 109926857 B CN109926857 B CN 109926857B CN 201910328171 A CN201910328171 A CN 201910328171A CN 109926857 B CN109926857 B CN 109926857B
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- clamping jaw
- piston
- driving
- clamping
- groove
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 210000000078 claw Anatomy 0.000 claims abstract description 16
- 238000003754 machining Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention discloses a clamping device and a driving method thereof, wherein the clamping device comprises a basic shell, at least one drivable clamping claw and a spring; the outer surface of the piston is provided with at least two springs, a bottom end cover is arranged at the bottom of the basic shell, a connecting rod is connected to the center position of the top of the bottom end cover, at least one groove is formed in the outer surface of the clamping claw, and a first driving clamping claw surface and a second driving clamping claw surface are formed in one side of the groove from top to bottom; according to the invention, a driving mode of combining the large-angle inclined plane and the small-angle inclined plane is used, when the large-angle inclined plane is used for driving the clamping jaw face in a fourth driving mode, the clamping jaw can be quickly separated from the blind rivet, and when the small-angle inclined plane is used for driving the clamping jaw face in a second driving mode, the clamping jaw can continuously apply the blind rivet clamping force, so that the thickness and the overall dimension of the device are reduced.
Description
Technical Field
The invention belongs to the technical field of clamping devices, and particularly relates to a driving method of a clamping device.
Background
The positioning and locking of the clamp or the workpiece and the machine tool in machining, the positioning and locking of the mould and the equipment, the rapid and accurate grasping or releasing of the robot to transfer the articles, especially in machining, the traditional clamp replacement needs the locking of screws, pressing plates, gaskets and the like, and then the plane datum and the position datum are calibrated for machining, thus the machining is labor-consuming and easy to cause the scrapping of products or the damage of the cutter machine tool due to human negligence, and the rapid locking mode is utilized, so that the clamp has small volume, large locking force and high positioning precision. In the product processing process, the product can be quickly removed from the machine tool, placed on three coordinates for detection, and locked to the machine tool for processing without recalibration. The auxiliary time is effectively shortened, the product quality is improved, and the labor intensity of operators is greatly reduced.
The existing zero point positioning clamping structure has the problems that the self-locking force of the spring is small on the same diameter and thickness, the spring is often kept by air pressure or hydraulic pressure, or the application in a self-locking state can be supported by the larger diameter and thickness, or an additional supercharging device is needed to release the self-locking, so that a driving method of the clamping device is provided.
Disclosure of Invention
The invention aims to provide a driving method of a clamping device, which aims to solve the problems that the clamping force and the locking force are increased in the prior art, and the required structural space and the external unlocking pressure are not increased.
In order to achieve the above purpose, the present invention provides the following technical solutions: a clamping device comprising a base housing and at least one drivable clamping jaw and a spring; and utilize the spring to the piston of a direction drive, just the surface of piston has two at least springs, the bottom end cover is installed to the bottom of basic shell, the top central point department of bottom end cover is connected with the connecting rod, just the surface of clamping jaw has seted up at least one recess, first drive clamping jaw face and second drive clamping jaw face have been seted up to one side top-down of recess, first drive clamping jaw face is greater than the inclination of second drive clamping jaw face, just third drive clamping jaw face and fourth drive clamping jaw face have been seted up to one side top-down of recess, first piston face and second piston face have been seted up to the both ends tip of piston and the corresponding position top-down of recess, the opposite position department of first piston face has seted up the third piston face.
Preferably, an included angle between the bottom end of the second driving clamping jaw surface and the longitudinal vertical line segment is 15 degrees, and an included angle between the bottom end of the first driving clamping jaw surface and the longitudinal vertical line segment is 40 degrees.
Preferably, an included angle between the bottom end of the third driving clamping jaw surface and the longitudinal vertical line segment is 15 degrees, and an included angle between the bottom end of the fourth driving clamping jaw surface and the longitudinal vertical line segment is 40 degrees.
Preferably, the grooves on the outer sides of the clamping claws are correspondingly clamped with the first piston surface, the second piston surface and the third piston surface of the piston surface.
Preferably, the piston moves up and down in a pneumatic mode and is linked with the clamping claw.
Preferably, the included angle between the spring and the bottom surface of the piston is 90 degrees.
Preferably, the tail end of the clamping claw is provided with a limiting groove and an arc-shaped section which correspond to the blind rivet.
The driving method of the clamping device comprises the following steps that the piston drives the second piston surface to move downwards, the first driving clamping claw is driven by the second piston surface to move towards the circle center of the basic shell to move rapidly, and the piston stroke can be effectively reduced through the design that the inclination angles of the first driving clamping claw surface and the second driving clamping claw surface are different; and when the piston continues to move forwards, the piston surface drives to the clamping jaw position, and the clamping jaw surface continuously slides after contacting with the positioning blind rivet inclined surface until the positioning blind rivet is locked.
Compared with the prior art, the invention has the beneficial effects that: the invention uses the driving mode of combining the large-angle inclined plane and the small-angle inclined plane, when the large-angle inclined plane is used for driving the clamping jaw surface, the rapid separation of the clamping jaw and the blind rivet can be realized, when the small-angle inclined plane is used for driving the clamping jaw surface, the continuous clamping force of the blind rivet can be applied to the clamping jaw, the thickness and the outline dimension of the device are reduced, the driving is precise and reliable, the failure of clamping and loosening can be avoided, the invention has the characteristics of high clamping strength, rapid driving without hysteresis, long service life and the like, can be used on zero point positioning and other grabbing equipment, can be singly used, can be used in a plurality of combinations, can effectively solve the problems of rapid and precise locking and fixing of products, clamps, molds, tools and the like in the mechanical and automation fields, can effectively save the auxiliary time, reduce the production cost and the management cost, can rapidly exchange the labor intensity of workers among various production equipment, cleaning, assembling and detecting equipment, and the driving of a piston is also realized in opposite directions; the clamping claws can be one, two or more, and can be applied to other locking clamping fields.
Drawings
FIG. 1 is an outline view of the present invention;
FIG. 2 is a schematic top view of the internal structure of the piston connection part of the present invention;
FIG. 3 is a schematic view of the internal structure of the piston connecting portion of the present invention;
FIG. 4 is a schematic view of the structure of the third driving jaw face portion of the present invention;
FIG. 5 is a schematic view of the construction of the first driving jaw face portion of the present invention;
FIG. 6 is a schematic view of the structure of the clamping jaw of the present invention in a relaxed state;
FIG. 7 is an enlarged schematic view of the loosening structure of the clamping jaw of the present invention;
FIG. 8 is a schematic view of the structure of the clamping jaw of the present invention in a clamped state;
FIG. 9 is an enlarged schematic view of the clamping jaw of the present invention;
in the figure: 1. a base housing; 3. clamping claws; 5. a piston; 6. a connecting rod; 7. a bottom end cap; 8. a spring; 30. a first driving clamping jaw face; 31. a second driving clamping jaw face; 32. a third driving clamping jaw face; 33. fourth driving clamping jaw face; 51. a first piston face; 52. a second piston face; 53. and a third piston face.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-9, the present invention provides a technical solution: a clamping device comprising a base housing 1 and at least one drivable clamping jaw 3 and a piston 5 and a connecting rod 6 and a bottom end cap 7 and a spring 8; the outer surface of the clamping jaw 3 is provided with at least one groove, one side of the groove is provided with a first driving clamping jaw face 30 and a second driving clamping jaw face 31 from top to bottom, the first driving clamping jaw face 30 is larger than the inclination angle of the second driving clamping jaw face 31, one side of the groove is provided with a third driving clamping jaw face 32 and a fourth driving clamping jaw face 33 from top to bottom, two end parts of the piston 5 and corresponding positions of the groove are provided with a first piston face 51 and a second piston face 52 from top to bottom, and the opposite position of the first piston face 51 is provided with a third piston face 53.
In this embodiment, preferably, the angle between the bottom end of the second driving clamping jaw surface 31 and the vertical line segment is 15 degrees, and the angle between the bottom end of the first driving clamping jaw surface 30 and the vertical line segment is 40 degrees.
In the present embodiment, it is preferable that the third piston face 53 and the second piston face 52 and the first driving clamping jaw face 30 and the fourth driving clamping jaw face 33 are arranged in parallel.
In this embodiment, the angle between the spring 8 and the bottom surface of the piston 5 is preferably 90 degrees.
In this embodiment, preferably, the end of the clamping claw 3 is provided with a limit groove and an arc-shaped section corresponding to the blind rivet.
The invention also provides a clamping device and a driving method applying the clamping device: the pneumatic piston 5 is adopted to drive the second piston surface 52 to move downwards, the second piston surface 52 is used to drive the first driving clamping jaw surface 30 and the second driving clamping jaw surface 31 to drive the clamping jaw 3 to move towards the circle center of the basic shell 1 to move rapidly by adopting a driving mode of combining a large-angle inclined surface and a small-angle inclined surface, and the clamping jaw 3 can continuously apply a blind rivet clamping force when the second driving clamping jaw surface 31 with the small-angle inclined surface is used for driving by adopting the design of different inclined angles, so that the stroke of the piston 5 can be effectively reduced, the piston 5 continues to move forwards, the first piston surface 51 is driven to the position of the clamping jaw 3, and a limiting groove and an arc-shaped tangential surface at the tail end of the clamping jaw 3 continuously slide after contacting with the positioning blind rivet inclined surface until the positioning blind rivet is locked; when the device is required to be loosened, air is supplied to the other end of the piston 5 through the air hole, the piston 5 moves to compress the spring 8 in the opposite direction, meanwhile, the third piston surface 53 drives the fourth driving clamping jaw surface 33 to quickly loosen the positioning blind rivet, and when the fourth driving clamping jaw surface 33 with a large-angle inclined plane is used for driving, the clamping jaw 3 can be quickly separated from the blind rivet, so that an object fixed on the positioning blind rivet can be quickly removed.
Although embodiments of the present invention 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 invention, the scope of which is defined in the appended claims and their equivalents.
Claims (1)
1. A method of driving a clamping device, characterized by: the driving method is used for driving the clamping device;
the clamping device comprises a base housing (1) and at least one drivable clamping jaw (3) and a spring (8); the piston (5) is driven towards one direction by utilizing the springs (8), the outer surface of the piston (5) is provided with at least two springs (8), the bottom end cover (7) is installed at the bottom of the base shell (1), the connecting rod (6) is connected to the top center position of the bottom end cover (7), at least one groove is formed in the outer surface of the clamping jaw (3), a first driving clamping jaw surface (30) and a second driving clamping jaw surface (31) are formed in one side of the groove from top to bottom, the inclination angle of the first driving clamping jaw surface (30) relative to the upper side of the groove is larger than the inclination angle of the second driving clamping jaw surface (31) relative to the lower side of the groove, a third driving clamping jaw surface (32) and a fourth driving clamping jaw surface (33) are formed in the other side of the groove from top to bottom, a first piston surface (51) and a second piston surface (52) are formed in the corresponding positions of the two end parts of the piston (5) and the groove from top to bottom, and a third piston surface (53) is formed in the opposite position of the first piston surface (51);
an included angle between the bottom end of the second driving clamping jaw surface (31) and the longitudinal vertical line segment is 15 degrees, and an included angle between the bottom end of the first driving clamping jaw surface (30) and the longitudinal vertical line segment is 40 degrees;
an included angle between the bottom end of the third driving clamping jaw surface (32) and the longitudinal vertical line segment is 15 degrees, and an included angle between the bottom end of the fourth driving clamping jaw surface (33) and the longitudinal vertical line segment is 40 degrees;
the grooves on the outer sides of the clamping claws (3) are correspondingly clamped with a first piston surface (51), a second piston surface (52) and a third piston surface (53) on the surface of the piston (5);
the piston (5) moves up and down in a pneumatic driving mode and is linked with the clamping claw (3);
the included angle between the spring (8) and the bottom surface of the piston (5) is 90 degrees;
the tail end of the clamping claw (3) is provided with a limit groove and an arc-shaped section which correspond to the blind rivet;
the driving method is as follows: the piston (5) drives the second piston surface (52) to move downwards, the second piston surface (52) drives the first driving clamping jaw surface (30) and the second driving clamping jaw surface (31) to drive the clamping jaw (3) to rapidly move towards the center of the base shell (1) by adopting a driving mode of combining a large-angle inclined surface and a small-angle inclined surface, the piston continues to move forwards, the first piston surface (51) is driven to the position of the clamping jaw (3), and the limiting groove and the arc-shaped tangent plane at the tail end of the clamping jaw (3) continue to slide after being contacted with the positioning blind rivet inclined surface until the positioning blind rivet is locked.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328171.XA CN109926857B (en) | 2019-04-23 | 2019-04-23 | Driving method of clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910328171.XA CN109926857B (en) | 2019-04-23 | 2019-04-23 | Driving method of clamping device |
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| Publication Number | Publication Date |
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| CN109926857A CN109926857A (en) | 2019-06-25 |
| CN109926857B true CN109926857B (en) | 2024-04-12 |
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| CN201910328171.XA Active CN109926857B (en) | 2019-04-23 | 2019-04-23 | Driving method of clamping device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113687112B (en) * | 2021-09-14 | 2023-11-21 | 国网山东省电力公司鱼台县供电公司 | Lightning arrester test device |
| CN114161179A (en) * | 2021-12-27 | 2022-03-11 | 上海楚峰机电有限公司 | Wedge structure, directional driving structure and fixing structure |
| CN114310407A (en) * | 2022-01-25 | 2022-04-12 | 明德润和机械制造(天津)有限公司 | Precise repeated positioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP0441725A1 (en) * | 1990-02-05 | 1991-08-14 | DIMECO ENOMA, Société Anonyme | Gas-spring powered clamping device for various workpieces |
| US5181700A (en) * | 1991-04-12 | 1993-01-26 | Kabushiki Kaisha Kosmek | Clamping apparatus |
| DE19527507C1 (en) * | 1995-07-27 | 1996-10-31 | Johann Spreitzer | Workholding fixture for machine tool for multi surface processing |
| DE19941234A1 (en) * | 1998-10-16 | 2000-04-20 | Heidelberger Druckmasch Ag | Clamp for workpieces has fixed and movable clamping jaws, piston cylinder unit, with piston rod, threaded spindle, clamping bolt and stop |
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