CN113649609A - Novel double-piston pneumatic chuck - Google Patents
Novel double-piston pneumatic chuck Download PDFInfo
- Publication number
- CN113649609A CN113649609A CN202110954352.0A CN202110954352A CN113649609A CN 113649609 A CN113649609 A CN 113649609A CN 202110954352 A CN202110954352 A CN 202110954352A CN 113649609 A CN113649609 A CN 113649609A
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- driving
- sleeve
- driving sleeve
- clamping jaw
- piston
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
Abstract
The invention provides a novel double-piston pneumatic chuck, which comprises a shell, wherein a hollow sleeve is arranged in the middle of the shell, and a first driving sleeve and a second driving sleeve which have opposite movement directions are sleeved on the outer wall of the hollow sleeve; the first driving sleeve drives the first clamping jaw to move, and the second driving sleeve drives the second clamping jaw to move, so that the first clamping jaw and the second clamping jaw are gathered together or separated. The hollow sleeve is fixedly installed and used for guiding the movement of the first driving sleeve and the second driving sleeve; the first clamping jaw and the second clamping jaw are driven to clamp or loosen a workpiece by the reverse motion of the first driving sleeve and the second driving sleeve, the traditional mode that the hollow sleeve and the piston cylinder reversely move is replaced, the whole structure is always kept stable during operation, the operation is more stable, and the service life is longer.
Description
Technical Field
The invention relates to the technical field of chucks, in particular to a novel double-piston pneumatic chuck.
Background
Chucks are mechanical devices used to clamp workpieces on machine tools. The machine tool accessory clamps and positions a workpiece by utilizing the radial movement of movable clamping jaws uniformly distributed on a chuck body. The chuck generally comprises a chuck body, a movable jaw and a jaw driving mechanism. The diameter of the chuck body is 65 mm at least and can reach 1500 mm at most, and a through hole is formed in the center of the chuck body so as to facilitate the workpiece or bar stock to pass through; the back part is provided with a cylindrical or short conical structure and is connected with the end part of a main shaft of the machine tool directly or through a flange plate. Chucks are commonly used in lathes, cylindrical grinders and internal grinders, and may also be used in conjunction with various indexing devices for milling and drilling machines.
At present, the pneumatic chuck can realize the quick clamping or loosening of a workpiece by the chuck, and is widely applied. Chinese patent No. CN211438162U discloses a double-piston type pneumatic chuck, which comprises a hollow sleeve and a piston cylinder, wherein the hollow sleeve and the piston cylinder move in opposite directions, the hollow sleeve drives two second jaws which are symmetrically arranged to move through a connecting plate and a second L-shaped turning block, and the piston cylinder drives two first jaws which are symmetrically arranged to move through the L-shaped turning block. Because the hollow sleeve runs through the head and the tail of the chuck, the structure is loosened after the hollow sleeve is used for a long time, the assembly precision of the chuck is influenced, and the service life of the chuck is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the problem of hollow cover among the traditional air chuck can lead to the structure not hard up after using for a long time, influence the assembly precision of chuck, reduce the life's of chuck technical problem is solved.
The invention provides a novel double-piston pneumatic chuck, which comprises a shell, wherein a hollow sleeve is arranged in the middle of the shell,
the outer wall of the hollow sleeve is sleeved with a first driving sleeve and a second driving sleeve which have opposite movement directions;
the first driving sleeve drives the first clamping jaw to move, and the second driving sleeve drives the second clamping jaw to move, so that the first clamping jaw and the second clamping jaw are gathered together or separated.
The hollow sleeve is fixedly installed and used for guiding the movement of the first driving sleeve and the second driving sleeve; the first clamping jaw and the second clamping jaw are driven to clamp or loosen a workpiece by the reverse motion of the first driving sleeve and the second driving sleeve, the traditional mode that the hollow sleeve and the piston cylinder reversely move is replaced, the whole structure is always kept stable during operation, the operation is more stable, and the service life is longer.
In order to explain the power structure of the first driving sleeve and the second driving sleeve, in the scheme, the hollow sleeve, the first driving sleeve and the second driving sleeve form a first air cavity and a second air cavity.
In order to explain the specific structure of the first air cavity and the second air cavity, in the scheme, the first driving sleeve comprises a piston and a piston cylinder which are mutually connected, the second driving sleeve comprises a top plate, a connecting pipe and a bottom plate which are mutually connected, and the top plate is parallel to the bottom plate;
the first driving sleeve, the top plate and the connecting pipe form the first air cavity;
the hollow sleeve, the piston, the connecting pipe and the bottom plate form the second air cavity.
In order to explain a specific driving structure of the first clamping jaw and the second clamping jaw, in the scheme, a first connecting rod and an L-shaped first driving rod are sequentially hinged between the piston cylinder and the first clamping jaw, and the corner of the first driving rod is hinged with the shell and drives the first clamping jaw through rotation;
a second connecting rod and a second driving rod are sequentially hinged between the bottom plate and the second jaw, and the corner of the second driving rod is hinged with the shell and drives the second jaw through rotation; the first connecting rod is located inside the first driving rod, and the second connecting rod is located outside the second driving rod.
Furthermore, a first driving plate hinged with the first connecting rod is arranged at the end part of the piston cylinder, and a second driving plate hinged with the second connecting rod is arranged on the bottom plate.
In order to explain the specific structure of the first driving plate, in the scheme, the first driving plate is L-shaped, and the transverse part of the first driving plate is sleeved with the hollow sleeve and is connected with the end part of the piston cylinder; the longitudinal part of the connecting rod is sleeved with the connecting pipe and is hinged with the first connecting rod. The hollow sleeve and the connecting pipe are also used for guiding the motion of the first driving plate.
Because traditional pneumatic chuck afterbody installation guide cylinder not only is used for alternate the work piece, still is used for the clamping fixed, and this kind of structure not only occupation space is big, and the cost is still than higher, so further improve and solve this problem, it is specific, the casing outer wall cup joints the bearing.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the present invention;
in the figure: 1. a housing; 2. hollow sleeve; 3. a first drive sleeve; 4. a second drive sleeve; 5. a first jaw; 6. a second jaw; 7. a first air cavity; 8. a second air cavity; 9. a bearing; 31. a piston; 32. a piston cylinder; 33. a first link; 34. a first drive lever; 35. a first drive plate; 41. a top plate; 42. a connecting pipe; 43. a base plate; 44. a second link; 45. a second drive lever; 46. a second drive plate.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
The first embodiment is as follows:
as shown in fig. 1 and 2, the invention relates to a novel double-piston air chuck, which comprises a shell 1, wherein a hollow sleeve 2 is arranged in the middle of the shell 1, two symmetrical first clamping jaws 5 and two symmetrical second clamping jaws 6 are arranged at the front end of the shell, and the first clamping jaws 5 and the second clamping jaws 6 are clamped in sliding grooves in the end part of the shell 1.
The outer wall of the hollow sleeve 2 is sleeved with a first driving sleeve 3 and a second driving sleeve 4. The first driving housing 3 includes a piston 31 and a piston cylinder 32 connected to each other, and the second driving housing 4 includes a top plate 41, a connection pipe 42, and a bottom plate 43 connected to each other, the top plate 41 being parallel to the bottom plate 43.
The first driving sleeve 3, the top plate 41 and the connecting pipe 42 form a first air cavity 7; the hollow casing 2, the piston 31, the connecting pipe 42 and the bottom plate 43 constitute a second air chamber 8. The first driving sleeve 3 and the second driving sleeve 4 move reversely through the inflation of the first air cavity 7 or the second air cavity 8.
A first driving plate 35 is connected with the end part of the piston cylinder 32, the first driving plate 35 is L-shaped, and the transverse part of the first driving plate is sleeved with the hollow sleeve 2 and is connected with the end part of the piston cylinder 32; the longitudinal part of which is sleeved over the connection tube 42. The hollow sleeve 2 and the connecting tube 42 are also used for guiding the movement of the first driving plate 35. The first drive plate 35 is hinged in sequence at a longitudinal portion thereof with a first link 33 and a first drive lever 34. The first driving rod 34 is L-shaped, and its corner is hinged to the housing 1, one end of the first driving rod is hinged to the first connecting rod 33, and the other end is inserted into the lower end of the first claw 5. The first driving sleeve 3 drives the first connecting rod 33 to ascend and descend, so as to drive the first driving rod 34 to rotate, and therefore the first claw 5 is driven to move in the sliding chute.
A second driving plate 46 is arranged at the position of the bottom plate 43 close to the excircle, and the second driving plate 46 is sequentially hinged with a second connecting rod 44 and a second driving rod 45. The second driving rod 45 is L-shaped, and its corner is hinged to the housing 1, and its one end is hinged to the second connecting rod 44, and its other end is inserted into the lower end of the second jaw 6. The second driving sleeve 4 drives the second connecting rod 44 to ascend and descend, so as to drive the second driving rod 45 to rotate, and therefore the second clamping jaw 6 is driven to move in the sliding chute.
The first connecting rod 33 is located inside the first driving rod 34, and the second connecting rod 44 is located outside the second driving rod 45, so that the first jaw 5 and the second jaw 6 are gathered or separated when the first driving sleeve 3 and the second driving sleeve 4 move in opposite directions.
The hollow sleeve 2 is fixedly arranged and used for guiding the movement of the first driving sleeve 3 and the second driving sleeve 4; the first driving sleeve 3 and the second driving sleeve 4 move reversely to drive the first clamping jaw 5 and the second clamping jaw 6 to clamp or loosen a workpiece.
Example two:
compared with the first embodiment, the differences are as follows: the outer wall of the shell 1 is sleeved with a bearing 9. Compared with the traditional structure that the guide cylinder is arranged at the tail of the pneumatic chuck and used for inserting workpieces and clamping and fixing, the pneumatic chuck is small in occupied space and low in cost.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (7)
1. The utility model provides a novel double-piston air chuck, includes casing (1), casing (1) intermediate position is equipped with hollow sleeve (2), its characterized in that:
the outer wall of the hollow sleeve (2) is sleeved with a first driving sleeve (3) and a second driving sleeve (4) which have opposite movement directions;
the first driving sleeve (3) drives the first clamping jaw (5) to move, the second driving sleeve (4) drives the second clamping jaw (6) to move, and the first clamping jaw (5) and the second clamping jaw (6) are gathered together or separated.
2. The novel dual piston air chuck as set forth in claim 1, wherein: the hollow sleeve (2), the first driving sleeve (3) and the second driving sleeve (4) form a first air cavity (7) and a second air cavity (8).
3. The new dual piston air chuck as set forth in claim 2, wherein: the first driving sleeve (3) comprises a piston (31) and a piston cylinder (32) which are connected with each other, the second driving sleeve (4) comprises a top plate (41), a connecting pipe (42) and a bottom plate (43) which are connected with each other, and the top plate (41) is parallel to the bottom plate (43);
the first driving sleeve (3), the top plate (41) and the connecting pipe (42) form the first air cavity (7);
the hollow sleeve (2), the piston (31), the connecting pipe (42) and the bottom plate (43) form the second air cavity (8).
4. The new dual piston air chuck as set forth in claim 3, wherein: a first connecting rod (33) and an L-shaped first driving rod (34) are sequentially hinged between the piston cylinder (32) and the first jaw (5), and the corner of the first driving rod (34) is hinged with the shell (1) and drives the first jaw (5) through rotation;
a second connecting rod (44) and a second driving rod (45) are sequentially hinged between the bottom plate (43) and the second jaw (6), and the corner of the second driving rod (45) is hinged with the shell (1) and drives the second jaw (6) through rotation; the first link (33) is located inside the first drive rod (34), and the second link (44) is located outside the second drive rod (45).
5. The novel dual piston air chuck as set forth in claim 4, wherein: a first driving plate (35) hinged with the first connecting rod (33) is arranged at the end part of the piston cylinder (32), and a second driving plate (46) hinged with the second connecting rod (44) is arranged on the bottom plate (43).
6. The novel dual piston air chuck as set forth in claim 5, wherein: the first driving plate (35) is L-shaped, and the transverse part of the first driving plate is sleeved with the hollow sleeve (2) and is connected with the end part of the piston cylinder (32); the longitudinal part of the connecting rod is sleeved with the connecting pipe (42) and is hinged with the first connecting rod (33).
7. The novel dual piston air chuck as set forth in claim 1, wherein: and a bearing (9) is sleeved on the outer wall of the shell (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110954352.0A CN113649609A (en) | 2021-08-19 | 2021-08-19 | Novel double-piston pneumatic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110954352.0A CN113649609A (en) | 2021-08-19 | 2021-08-19 | Novel double-piston pneumatic chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113649609A true CN113649609A (en) | 2021-11-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110954352.0A Pending CN113649609A (en) | 2021-08-19 | 2021-08-19 | Novel double-piston pneumatic chuck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113649609A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60249515A (en) * | 1984-05-18 | 1985-12-10 | パウル・フオルカルト・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフトング・ウント・コンパニ・コマンデイートゲゼルシヤフト | Rapid exchanger for temporary pawl of power operating chuck |
| CN210188533U (en) * | 2019-05-30 | 2020-03-27 | 常州优特卡机械有限公司 | Double-piston type pneumatic double-acting feeding chuck |
| CN211438150U (en) * | 2019-12-31 | 2020-09-08 | 常州市力源恒机械有限公司 | Double-piston pneumatic chuck |
| CN211438162U (en) * | 2019-12-28 | 2020-09-08 | 常州市力源恒机械有限公司 | Double-piston type pneumatic chuck |
| CN211438161U (en) * | 2019-12-28 | 2020-09-08 | 常州市力源恒机械有限公司 | Double-piston pneumatic chuck transmission mechanism |
| CN211438165U (en) * | 2019-12-31 | 2020-09-08 | 常州市力源恒机械有限公司 | Double-piston pneumatic chuck |
| CN211438164U (en) * | 2019-12-31 | 2020-09-08 | 常州市力源恒机械有限公司 | Piston type pneumatic chuck |
-
2021
- 2021-08-19 CN CN202110954352.0A patent/CN113649609A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60249515A (en) * | 1984-05-18 | 1985-12-10 | パウル・フオルカルト・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフトング・ウント・コンパニ・コマンデイートゲゼルシヤフト | Rapid exchanger for temporary pawl of power operating chuck |
| CN210188533U (en) * | 2019-05-30 | 2020-03-27 | 常州优特卡机械有限公司 | Double-piston type pneumatic double-acting feeding chuck |
| CN211438162U (en) * | 2019-12-28 | 2020-09-08 | 常州市力源恒机械有限公司 | Double-piston type pneumatic chuck |
| CN211438161U (en) * | 2019-12-28 | 2020-09-08 | 常州市力源恒机械有限公司 | Double-piston pneumatic chuck transmission mechanism |
| CN211438150U (en) * | 2019-12-31 | 2020-09-08 | 常州市力源恒机械有限公司 | Double-piston pneumatic chuck |
| CN211438165U (en) * | 2019-12-31 | 2020-09-08 | 常州市力源恒机械有限公司 | Double-piston pneumatic chuck |
| CN211438164U (en) * | 2019-12-31 | 2020-09-08 | 常州市力源恒机械有限公司 | Piston type pneumatic chuck |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20211116 |