CN112935598A - Four-claw two-by-two self-centering pneumatic chuck - Google Patents
Four-claw two-by-two self-centering pneumatic chuck Download PDFInfo
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- CN112935598A CN112935598A CN202110160615.0A CN202110160615A CN112935598A CN 112935598 A CN112935598 A CN 112935598A CN 202110160615 A CN202110160615 A CN 202110160615A CN 112935598 A CN112935598 A CN 112935598A
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- shaft
- rotating shaft
- connecting rod
- self
- pivot
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- 230000007246 mechanism Effects 0.000 claims abstract description 39
- 210000000078 claw Anatomy 0.000 abstract description 2
- 230000033001 locomotion Effects 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000004899 motility Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0426—Fixtures for other work
- B23K37/0435—Clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/04—Tubular or hollow articles
- B23K2101/06—Tubes
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Manipulator (AREA)
Abstract
The invention relates to the technical field of chucks and solves the problem that a pneumatic chuck in the prior art is inaccurate in centering. The utility model provides a two liang of self-align pneumatic chuck of four claws, which comprises a disc body, be equipped with gripper mechanism on the disk body, gripper mechanism includes two cylinders, be equipped with the support frame on the piston rod of cylinder, be equipped with the roller on the support frame, it is connected with the second connecting rod to rotate through the second pivot on the cylinder body of cylinder, it is connected with first connecting rod to rotate through first pivot on the second connecting rod, it is connected with the third connecting rod to rotate through the third pivot on the second connecting rod, the distance of first pivot to second pivot is the same with the distance of third pivot to second pivot, first connecting rod rotates through a support frame of fourth pivot and gripper mechanism and is connected, the third connecting rod rotates through another support frame of fifth pivot and gripper mechanism and is connected, the distance of fourth pivot to first pivot is the same with the distance of fifth pivot to third pivot.
Description
Technical Field
The invention relates to the technical field of chucks, in particular to a four-jaw pairwise self-centering pneumatic chuck.
Background
For the processing of pipe materials, the chuck is adopted by the laser processing equipment to clamp the pipe materials, and the clamping precision of the chuck can directly influence the cutting precision. The automatic chuck, especially the preposed chuck, is commonly provided with two control modes of electric control and pneumatic control in the market, and the pneumatic control has low cost, high speed and small volume compared with the electric control. Because the pneumatic chuck drives the jack catch motion by 4 cylinders and realizes the centre gripping, unclamp the action, but because the defect that pneumatic control self exists, the synchronous motility of cylinder is poor, and has the inaccurate problem of centering.
Disclosure of Invention
The invention provides a four-claw pairwise self-centering pneumatic chuck, which solves the problem of inaccurate centering of the pneumatic chuck in the prior art.
The utility model provides a two liang of self-align pneumatic chuck of four claws, which comprises a disc body, be equipped with gripper mechanism on the disk body, gripper mechanism includes two cylinders, be equipped with the support frame on the piston rod of cylinder, be equipped with the roller on the support frame, it is connected with the second connecting rod to rotate through the second pivot on the cylinder body of cylinder, it is connected with first connecting rod to rotate through first pivot on the second connecting rod, it is connected with the third connecting rod to rotate through the third pivot on the second connecting rod, the distance of first pivot to second pivot is the same with the distance of third pivot to second pivot, first connecting rod rotates through a support frame of fourth pivot and gripper mechanism and is connected, the third connecting rod rotates through another support frame of fifth pivot and gripper mechanism and is connected, the distance of fourth pivot to first pivot is the same with the distance of fifth pivot to third pivot. Because the distance from the first rotating shaft to the second rotating shaft is the same as the distance from the third rotating shaft to the second rotating shaft, and the distance from the fourth rotating shaft to the first rotating shaft is the same as the distance from the fifth rotating shaft to the third rotating shaft, namely, the structures of the first connecting rod and the second connecting rod on two sides of the second rotating shaft are completely symmetrical, the motions of the first connecting rod and the second connecting rod are completely symmetrical. When the two oppositely arranged cylinders do not synchronously move, the cylinder which moves firstly drives the second rotating shaft to rotate, the third connecting rod drives the other support frame of the same clamping jaw mechanism to move, the moving directions of the two support frames are opposite, and the moving distances of the two support frames are the same, so that the synchronous movement of the two support frames in the clamping jaw mechanism is realized, the automatic centering of the rollers on the two support frames is realized, and the centering is accurately finished.
Further, the clamping jaw mechanism further comprises a guide shaft, a shaft sleeve is sleeved on the guide shaft in a sliding mode, and the two support frames are connected with different shaft sleeves respectively. The shaft sleeve is a linear bearing.
Further, be equipped with two on the disk body altogether gripper mechanism, the contained angle between two gripper mechanism is 90. The rollers are realized to clamp the pipe from four directions. The two clamping jaw mechanisms are positioned on the same side of the plate body, but the distances from the two clamping jaw mechanisms to the other side of the plate body are different, so that interference is avoided.
Furthermore, the guiding axle includes first guiding axle and second guiding axle, and the axle sleeve on the first guiding axle and the axle sleeve on the second guiding axle are connected with two support frames of gripper mechanism respectively. The guide shaft can guide the support frame, and the support frame is prevented from moving in the direction perpendicular to the axis of the cylinder driving the support frame to move.
Furthermore, the second rotating shaft is located in the middle of the second connecting rod, and the first rotating shaft and the third rotating shaft are symmetrically distributed on two sides of the second rotating shaft.
Furthermore, two rollers are arranged on the support frame, and the shafts of the two rollers are parallel and are arranged along the axial direction of the disc body. The double-row roller structure ensures the clamping stability and improves the cutting precision.
Furthermore, a shaft seat cavity is formed in the support frame, a shaft seat capable of moving in the shaft seat cavity is arranged in the shaft seat cavity, the end portion of the shaft of the roller is inserted into the shaft seat, an adjusting bolt is rotatably connected to the support frame, and the adjusting bolt is in threaded connection with the shaft seat. The mounting positions of the rollers along the movement direction of the piston rod can be adjusted, and the rollers are symmetrical relative to the center of the chuck through fine adjustment, so that the center of a clamped pipe is concentric with the center of the chuck. Simple structure, easy maintenance and low cost.
Furthermore, a shaft seat cavity is formed in the supporting frame, a shaft seat capable of moving in the shaft seat cavity is arranged in the shaft seat cavity, the end portion of the shaft of the roller is inserted into the shaft seat, an adjusting bolt is rotatably connected to the supporting frame, and the end portion of the adjusting bolt abuts against the shaft seat.
According to the technical scheme, the invention has the following advantages:
because the distance from the first rotating shaft to the second rotating shaft is the same as the distance from the third rotating shaft to the second rotating shaft, and the distance from the fourth rotating shaft to the first rotating shaft is the same as the distance from the fifth rotating shaft to the third rotating shaft, namely, the structures of the first connecting rod and the second connecting rod on two sides of the second rotating shaft are completely symmetrical, the motions of the first connecting rod and the second connecting rod are completely symmetrical. When the two oppositely arranged cylinders do not synchronously move, the cylinder which moves firstly drives the second rotating shaft to rotate, the third connecting rod drives the other support frame of the same clamping jaw mechanism to move, the moving directions of the two support frames are opposite, and the moving distances of the two support frames are the same, so that the synchronous movement of the two support frames in the clamping jaw mechanism is realized, the automatic centering of the rollers on the two support frames is realized, and the centering is accurately finished.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description will be briefly introduced, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a cross-sectional view of the present invention.
Figure 2 is a schematic view of the jaw mechanism of the present invention.
FIG. 3 is a schematic view of a connecting rod according to the present invention.
FIG. 4 is a schematic view of an adjusting bolt of the present invention.
1. The device comprises a cylinder, 2, a disc body, 3, a roller, 4, a guide shaft, 5, a cylinder mounting seat, 6, a fixing seat, 7, a fifth rotating shaft, 8, an adjusting bolt, 9, a first connecting rod, 10, a supporting frame, 11, a second connecting rod, 12, a third rotating shaft, 13, a third connecting rod, 14, a second rotating shaft, 15, a first rotating shaft, 16, a fourth rotating shaft, 17, a shaft seat 18 and a shaft.
Detailed Description
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the present embodiment, and it is apparent that the embodiments described below are only a part of embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection of this patent.
Example 1
As shown in fig. 1-4, a four-jaw pairwise self-centering pneumatic chuck includes a chuck body 2, a clamping jaw mechanism is arranged on the chuck body 2, the clamping jaw mechanism includes two cylinders 1, a support frame 10 is arranged on a piston rod of each cylinder 1, a roller 3 is arranged on each support frame 10, a second connecting rod 11 is rotatably connected to a cylinder body of each cylinder 1 through a second rotating shaft 14, a first connecting rod 9 is rotatably connected to the second connecting rod 11 through a first rotating shaft 15, a third connecting rod 13 is rotatably connected to the second connecting rod 11 through a third rotating shaft 12, the distance from the first rotating shaft 15 to the second rotating shaft 14 is the same as the distance from the third rotating shaft 12 to the second rotating shaft 14, the first connecting rod 9 is rotatably connected to one support frame 10 of the clamping jaw mechanism through a fourth rotating shaft 16, the third connecting rod 13 is rotatably connected to the other support frame 10 of the clamping jaw mechanism through a fifth rotating shaft 7, and the distance from the fourth rotating shaft 16 to the first rotating shaft 15 is. Since the distance from the first rotating shaft 15 to the second rotating shaft 14 is the same as the distance from the third rotating shaft 12 to the second rotating shaft 14, and the distance from the fourth rotating shaft 16 to the first rotating shaft 15 is the same as the distance from the fifth rotating shaft 7 to the third rotating shaft 12, the structures of the first connecting rod 9 and the third connecting rod 13 on both sides of the second rotating shaft 14 are completely symmetrical, so that the motions of the first connecting rod 9 and the third connecting rod 13 are completely symmetrical. When the two oppositely arranged cylinders 1 do not synchronously move, the cylinder 1 which moves firstly drives the second rotating shaft 14 to rotate, the third connecting rod 13 drives the other support frame 10 of the same clamping jaw mechanism to move, the moving directions of the two support frames 10 are opposite, and the moving distances are the same, so that the synchronous movement of the two support frames 10 in the clamping jaw mechanism is realized, the automatic centering of the rollers on the two support frames 10 is realized, and the centering is accurately finished. The clamping jaw mechanism further comprises a guide shaft 4, a shaft sleeve is sleeved on the guide shaft 4 in a sliding mode, and the two support frames 10 are respectively connected with different shaft sleeves. The shaft sleeve is a linear bearing. Two clamping jaw mechanisms are arranged on the disc body 2, and the included angle between the two clamping jaw mechanisms is 90 degrees. The rollers 3 are realized to grip the tube from four directions. The two clamping jaw mechanisms are positioned on the same side of the disc body 2, but the distances from the two clamping jaw mechanisms to the other side of the disc body 2 are different, so that interference is avoided. The guide shaft 4 comprises a first guide shaft 4 and a second guide shaft 4, and a shaft sleeve on the first guide shaft 4 and a shaft sleeve on the second guide shaft 4 are respectively connected with two support frames 10 of the clamping jaw mechanism. The guide shaft 4 can guide the support frame 10 to prevent the support frame from moving perpendicular to the axial direction of the cylinder 1 driving the support frame to move. The second rotating shaft 14 is located in the middle of the second connecting rod 11, and the first rotating shaft 15 and the third rotating shaft 12 are symmetrically distributed on both sides of the second rotating shaft 14. The support frame 10 is provided with two rollers 3, and the shafts 18 of the two rollers 3 are parallel and are arranged along the axial line 18 of the disc body 2. The double-row roller 3 structure ensures the clamping stability and improves the cutting precision. Be equipped with axle bed 17 chamber on the support frame 10, be equipped with 18 seats 17 of axle that can remove in the axle bed 17 intracavity in the axle bed 17 chamber, the tip of the axle 18 of roller 3 inserts in the axle bed 17 and with axle bed 17 tight fit, axle 18 passes through the bearing and is connected with roller 3, rotates on the support frame 10 and is connected with adjusting bolt 8, adjusting bolt 8 and axle bed 17 threaded connection. The mounting positions of the rollers 3 along the motion direction of the piston rod can be adjusted, and the rollers 3 are symmetrical relative to the center of the chuck through fine adjustment, so that the center of a clamped pipe is concentric with the center of the chuck. Simple structure, easy maintenance and low cost.
Example 2
The difference between this embodiment and embodiment 1 is that a shaft seat 17 cavity is formed in the support frame 10, a shaft 18 seat 17 capable of moving in the shaft seat 17 cavity is formed in the shaft seat 17 cavity, an end of a shaft 18 of the roller 3 is inserted into the shaft seat 17, an adjusting bolt 8 is rotatably connected to the support frame 10, and an end of the adjusting bolt 8 abuts against the shaft seat 17.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims, as well as in the drawings, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. A four-claw pairwise self-centering pneumatic chuck is characterized by comprising a chuck body (2), a clamping jaw mechanism is arranged on the chuck body (2), the clamping jaw mechanism comprises two cylinders (1), a support frame (10) is arranged on a piston rod of each cylinder (1), a roller (3) is arranged on each support frame (10), a second connecting rod (11) is rotatably connected onto a cylinder body of each cylinder (1) through a second rotating shaft (14), a first connecting rod (9) is rotatably connected onto each second connecting rod (11) through a first rotating shaft (15), a third connecting rod (13) is rotatably connected onto each second connecting rod (11) through a third rotating shaft (12), the distance from the first rotating shaft (15) to the second rotating shaft (14) is the same as the distance from the third rotating shaft (12) to the second rotating shaft (14), and the first connecting rod (9) is rotatably connected with one support frame (10) of the clamping jaw mechanism through a fourth rotating shaft (16), the third connecting rod (13) is rotatably connected with the other supporting frame (10) of the clamping jaw mechanism through a fifth rotating shaft (7), and the distance from the fourth rotating shaft (16) to the first rotating shaft (15) is the same as the distance from the fifth rotating shaft (7) to the third rotating shaft (12).
2. A four-claw pairwise self-centering pneumatic chuck according to claim 1, wherein the clamping jaw mechanism further comprises a guide shaft (4), a shaft sleeve is slidably sleeved on the guide shaft (4), and the two support frames (10) are respectively connected with different shaft sleeves.
3. Four-jaw, two-by-two self-centering pneumatic chuck according to claim 1 or 2, characterized in that two said clamping jaw mechanisms are provided on said chuck body (2), the angle between the two clamping jaw mechanisms being 90 °.
4. Four-jaw pairwise self-centering pneumatic chuck according to claim 2, characterized in that said guiding shafts (4) comprise a first guiding shaft and a second guiding shaft, the sleeve on the first guiding shaft and the sleeve on the second guiding shaft being connected to two support frames (10) of the gripper mechanism, respectively.
5. Four-jaw pairwise self-centering pneumatic chuck according to claim 3, wherein said second rotation shaft (14) is located in the middle of said second connecting rod (11), said first rotation shaft (15) and third rotation shaft (12) being symmetrically distributed on both sides of said second rotation shaft (14).
6. Four-jaw, two-by-two, self-centering pneumatic chuck according to claim 5, characterised in that a total of two rollers (3) are provided on said supporting frame (10), the axes (18) of the two rollers (3) being parallel and aligned along the axial direction of the plate (2).
7. The four-claw pairwise self-centering pneumatic chuck according to claim 5 or 6, wherein a shaft seat (17) cavity is formed in the supporting frame (10), a shaft seat (17) capable of moving in the shaft seat (17) cavity is formed in the shaft seat (17) cavity, the end of a shaft (18) of the roller (3) is inserted into the shaft seat (17), an adjusting bolt (8) is rotatably connected to the supporting frame (10), and the adjusting bolt (8) is in threaded connection with the shaft seat (17).
8. The four-claw pairwise self-centering pneumatic chuck according to claim 5 or 6, wherein a shaft seat (17) cavity is formed in the supporting frame (10), a shaft seat (17) capable of moving in the shaft seat (17) cavity is formed in the shaft seat (17) cavity, the end of a shaft (18) of the roller (3) is inserted into the shaft seat (17), an adjusting bolt (8) is rotatably connected to the supporting frame (10), and the end of the adjusting bolt (8) abuts against the shaft seat (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110160615.0A CN112935598A (en) | 2021-02-05 | 2021-02-05 | Four-claw two-by-two self-centering pneumatic chuck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110160615.0A CN112935598A (en) | 2021-02-05 | 2021-02-05 | Four-claw two-by-two self-centering pneumatic chuck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112935598A true CN112935598A (en) | 2021-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110160615.0A Pending CN112935598A (en) | 2021-02-05 | 2021-02-05 | Four-claw two-by-two self-centering pneumatic chuck |
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| Country | Link |
|---|---|
| CN (1) | CN112935598A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100725601B1 (en) * | 2006-06-23 | 2007-06-11 | 이현화 | Chucking device of machining center |
| CN104444323A (en) * | 2014-11-26 | 2015-03-25 | 山东同力达智能机械有限公司 | Crank type alignment clamping device |
| CN208019651U (en) * | 2018-03-09 | 2018-10-30 | 常州戴芮珂机电科技有限公司 | Air-actuated jaw machinery debugs center fixture |
| CN109500417A (en) * | 2018-12-10 | 2019-03-22 | 温州大学瓯江学院 | A kind of self-centering chuck |
| CN209349538U (en) * | 2019-01-16 | 2019-09-06 | 天弘激光（宿迁）有限公司 | Manually adjust four paws self-centering chuck |
| CN211804460U (en) * | 2019-12-19 | 2020-10-30 | 江苏迅镭激光科技有限公司 | Two-way four-jaw chuck clamping mechanism |
-
2021
- 2021-02-05 CN CN202110160615.0A patent/CN112935598A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100725601B1 (en) * | 2006-06-23 | 2007-06-11 | 이현화 | Chucking device of machining center |
| CN104444323A (en) * | 2014-11-26 | 2015-03-25 | 山东同力达智能机械有限公司 | Crank type alignment clamping device |
| CN208019651U (en) * | 2018-03-09 | 2018-10-30 | 常州戴芮珂机电科技有限公司 | Air-actuated jaw machinery debugs center fixture |
| CN109500417A (en) * | 2018-12-10 | 2019-03-22 | 温州大学瓯江学院 | A kind of self-centering chuck |
| CN209349538U (en) * | 2019-01-16 | 2019-09-06 | 天弘激光（宿迁）有限公司 | Manually adjust four paws self-centering chuck |
| CN211804460U (en) * | 2019-12-19 | 2020-10-30 | 江苏迅镭激光科技有限公司 | Two-way four-jaw chuck clamping mechanism |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20210611 |