CN111922935A - Rotary clamping device - Google Patents
Rotary clamping device Download PDFInfo
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- CN111922935A CN111922935A CN202010685073.4A CN202010685073A CN111922935A CN 111922935 A CN111922935 A CN 111922935A CN 202010685073 A CN202010685073 A CN 202010685073A CN 111922935 A CN111922935 A CN 111922935A
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- chuck
- clamping
- rotating
- rotary
- top cover
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B11/00—Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides a rotary clamping device which comprises a pneumatic system, a rotating system and a clamping system, wherein the pneumatic system comprises a cylinder and a telescopic rod; the rotating system comprises a rotating rod, a rotating disk, a clamping base and a clamping chassis; the clamping system comprises a chuck; one section of the telescopic rod is arranged in the cylinder, the other section of the telescopic rod is connected to the rotating rod, the rotating rod is fixed with the rotating disk, the clamping base plate is fixed at the center of the clamping base, the rotating disk is sleeved on the circumferential surface of the clamping base, and the rotating disk can rotate along the periphery of the clamping base; a top cover is arranged above the rotating disc, and a through hole is formed in the middle of the top cover; the clamping base is provided with a plurality of strip-shaped grooves in axial arrays on the upper side, the chucks are arranged in the strip-shaped grooves respectively and are connected with the slider connecting rod, and the other end of the slider connecting rod is provided with a fixed rotating shaft and is fixedly connected onto the rotating disk through the fixed rotating shaft. The clamping head moves along the sliding groove in a rotating mode and is combined with the clamping head, so that the tubular article can be clamped quickly.
Description
Technical Field
The invention relates to the field of machining tools, in particular to a clamp, and particularly discloses a rotary clamping device.
Background
In automated equipment, various clamping mechanisms are commonly used. Most of common clamping mechanisms in the market at present are claw type and wedge type, and for the claw type mechanisms, as the action of force is required for clamping workpieces, and the clamping force cannot be too small, the traditional claw type clamping mechanisms adopt a lever principle to provide the clamping force, and the occupied space is relatively large; the wedge type mechanism can provide a proper clamping force in a small space, but the wedge type mechanism adopts the principle of providing the clamping force for mutual extrusion of components, so the clamping time is usually longer. Therefore, a clamping mechanism capable of quickly clamping and quickly disassembling is found, which is very necessary for automatic construction. Chinese patent "anchor clamps" with application number 201710415031.7 provides one kind and can realize pressing from both sides tight device of work piece through the rotation, but this technical scheme, the hole axle clearance fit mode that adopts the round hole, and the last direct circular arc section through lever itself supports tight work piece, and such centre gripping contact surface is less, is difficult to satisfy actual centre gripping demand.
Disclosure of Invention
The invention aims to provide a rotary clamping device, which enables a chuck to move along a sliding groove in a rotating mode and is combined with the chuck, so that the rapid clamping and the unclamping of tubular articles can be better realized.
The technical scheme of the invention is as follows:
a rotary clamping device comprises a pneumatic system, a rotating system and a clamping system, wherein the pneumatic system comprises a cylinder and a telescopic rod; the rotating system comprises a rotating rod, a rotating disk, a clamping base and a clamping chassis; the clamping system comprises a chuck;
one section of the telescopic rod is arranged in the cylinder, the other section of the telescopic rod is connected to the rotating rod, the rotating rod is fixed with the rotating disk, the clamping chassis is fixed at the center of the clamping base, the rotating disk is sleeved on the circumferential surface of the clamping base, and the rotating disk can rotate along the periphery of the clamping base; a top cover is arranged above the rotating disc, and a through hole is formed in the middle of the top cover;
the clamping base is provided with a plurality of strip-shaped grooves in axial arrays on the upper side, the chucks are arranged in the strip-shaped grooves respectively and are connected with the slider connecting rod, and the other end of the slider connecting rod is provided with a fixed rotating shaft and is fixedly connected onto the rotating disk through the fixed rotating shaft.
Further, the strip groove quantity is 3, forms evenly distributed's trident groove, and the chuck that sets up in the strip groove also is 3 groups.
Further, the chuck comprises a chuck seat, a chuck connecting block and a chuck body, the chuck seat top is the chuck body, the chuck seat tail is the chuck connecting block, a round hole is arranged in the middle of the chuck connecting block and is aligned with one end of the slider connecting rod through the round hole, a chuck connecting bolt is arranged at the round hole, the chuck connecting block and the slider connecting rod are fixed, the chuck connecting block and the chuck seat are both arranged in the strip-shaped groove, and a strip-shaped hole is further arranged at the bottom of the strip-shaped groove, so that the chuck connecting block cannot be rubbed by the bottom of the chuck connecting bolt when sliding along the strip-shaped groove.
Furthermore, the chuck body is a stand column, two non-stacked longitudinal arc cross rods are arranged on two sides of the stand column, the arc cross rods of two adjacent chuck bodies are arranged in a staggered mode, the arc sections of the arc cross rods face the axis, and after the 3 chuck bodies are folded, all the arc cross rods form a cylindrical cavity so as to clamp the tubular workpiece.
Furthermore, a dovetail block is arranged at the tail of the chuck base, a matched dovetail groove is arranged at the position of the chuck connecting block corresponding to the chuck base, and the quick connection of the chuck base and the chuck connecting block is realized through the dovetail block and the dovetail groove;
the chuck body is provided with multiple height and/or shape, when needs are changed, takes out chuck seat from the chuck connecting block, changes other models and inserts the chuck connecting block.
Furthermore, 3 threaded holes are formed in the clamping base, and the round threaded holes are used for arranging bolts fixed with the top cover, so that the top cover is fixed on the clamping base, the height of the top cover is adjusted, and the sliding block connecting rod can normally move below the top cover.
Furthermore, a plurality of holes are formed in the outer edge of the clamping chassis and used for enabling the clamping chassis to be fixed on other working tables.
Further, the side of the rotating disk is provided with a notch by the upper side, the notch is internally provided with 2 thread counter bores, the corresponding rotating rod is provided with 2 corresponding through holes, and 2 rotating rod bolts are arranged in the through holes and the thread counter bores to fasten the rotating rod and the rotating disk.
Furthermore, the connection between the rotating rod and the telescopic rod is a hinge connection.
Furthermore, the height of the top cover is smaller than that of the chuck body, the aperture in the center of the top cover is larger than the maximum distance of the chuck body during working, and the chuck body always extends out of the top cover after the rotary clamping device is installed.
Has the advantages that:
1. the structure of the invention adopts the cylinder to drive the clamping ring, and the clamping process has no speed reducer, so the time used in the clamping process is shorter and the efficiency is higher.
2. The clamping ring is rotated by the force provided by the cylinder, the sliding block connecting rod drives the sliding block to slide towards the circle center of the clamping ring in the rotating process, the sliding block insert on the sliding block is gradually closed to clamp the tubular object, and therefore the main stress part is on the sliding block connecting rod and the clamping ring, belongs to internal stress and occupies small space.
3. Realize the motion through the spout, the migration range is big, can adapt to bigger centre gripping scope, and can more stable removal, has the top cap to carry on spacingly to it simultaneously, avoids the inside and outside migration range of chuck too big.
4. Through setting up the chuck body for the chuck can be at wider centre gripping tubulose work piece, improves and snatchs stability, and the cooperation through centre gripping body and top cap realizes spacingly simultaneously.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic view of the external structure of the present invention;
FIG. 2 is a schematic view of the structure of FIG. 1 with the top cover removed;
FIG. 3 is a schematic view of the FIG. 2 rotated loose;
fig. 4 is a schematic view of the slide bar of fig. 2 with a portion broken away.
In the figure:
1 cylinder, 2 telescopic links, 3 dwang, 4 press from both sides tight chassis, 5 rotary disks, 6 bar grooves, 7 slider connecting rods, 8 chucks, 9 top caps, 10 press from both sides tight base
301 turning rod bolt, 501 connecting rod bolt, 701 fixed rotating shaft, 702 chuck connecting bolt, 801 chuck seat, 802 chuck connecting block, 803 chuck body and 8021 chuck connecting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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 protection scope of the present invention.
As shown in fig. 1-4, a rotary clamping device comprises a pneumatic system, a rotary system, a clamping system and a control system, wherein the pneumatic system comprises a cylinder 1 and an expansion link 2; the rotating system comprises a rotating rod 3, a rotating disk 5, a clamping base 10 and a clamping chassis 4; the clamping system comprises a chuck 8;
one section of the telescopic rod 2 is arranged in the cylinder 1, the cylinder 1 drives the section of the telescopic rod 2 to realize extension and retraction within a certain range, the other section of the telescopic rod 2 is connected to the rotating rod 3 through a hinge, the rotating rod 3 is fixed with the rotating disk 5, the clamping chassis 4 is fixed at the center of the clamping base 10, the rotating disk 5 is sleeved on the circumferential surface of the clamping base 10, the rotating disk 5 is in clearance fit with the clamping base 10, the rotating disk 5 can rotate along the periphery of the clamping base 10, and if necessary, a bearing can be arranged between the rotating disk 5 and the clamping base 10 to facilitate rotation; a top cover 9 is arranged above the rotating disc 5, a through hole is formed in the middle of the top cover 9, the height of the top cover 9 is smaller than that of the chuck 8, the aperture of the center of the top cover 9 is larger than the maximum relative distance of the chuck 8 during working, namely when the chuck 8 moves backwards to the farthest, the chuck is limited by the hole in the center of the top cover 9, and after the rotating and clamping device is installed, the chuck body 803 always extends out of the top cover 9;
be equipped with the bar groove 6 of 3 axial arrays at the tight base 10 upside of clamp, form evenly distributed's three forked groove, chuck 8 also is equipped with 3 consequently, and set up respectively in bar groove 6, slider connecting rod 7 also is equipped with 3, chuck 8 is connected with slider connecting rod 7, the slider connecting rod 7 other end is equipped with fixed rotating shaft 701, and connect through fixed rotating shaft 701 and fix to rotary disk 5, and the position of fixing to position on rotary disk 5 and bar groove 6 can realize that slider connecting rod 7 moves along the back-and-forth movement of bar groove 6 along with the rotation of rotary disk. The chuck 8 comprises a chuck seat 801, a chuck connecting block 802 and a chuck body 803, the top of the chuck seat 801 is the chuck body 803, the tail of the chuck seat 801 is the chuck connecting block 802, a round hole is arranged in the middle of the chuck connecting block 802, the round hole is aligned with one end of a slider connecting rod 7, a chuck connecting bolt 702 is arranged at the round hole, the chuck connecting block 802 and the slider connecting rod 7 are fixed, the chuck connecting block 802 and the chuck seat 801 are both arranged in a strip-shaped groove 6, and a strip-shaped hole is further arranged at the bottom of the strip-shaped groove 6, so that the chuck connecting block 8 cannot be rubbed by the bottom of the chuck connecting bolt 702 when sliding along the strip-shaped groove 6. The chuck bodies 803 are stand columns, two non-stacked longitudinal arc-shaped cross rods are arranged on two sides of each stand column to form a structure similar to a single-column ladder, the radian of each arc-shaped cross rod is the radian of an arc, the arc-shaped cross rods of two adjacent chuck bodies 803 are arranged in a staggered mode, the arc sections of the arc-shaped cross rods face the axis, and after 3 chuck bodies 803 are folded, all the arc-shaped cross rods form a cylindrical cavity so as to clamp a tubular workpiece. The tail of the chuck seat 801 is provided with a dovetail block, a matched dovetail groove is arranged at the position of the chuck connecting block 802 corresponding to the chuck 8 base, and the quick connection of the chuck seat 801 and the chuck connecting block 802 is realized through the dovetail block and the dovetail groove;
the chuck body 803 is provided with a plurality of heights and/or shapes (for example, the spacing sizes of the arc-shaped cross rods are different, and the inner side of the chuck body is provided with a coating for increasing friction force and the like) so as to meet the pipe diameter requirements of different workpieces, when the workpiece needs to be replaced, the chuck seat 801 is taken out of the chuck connecting block 802, and other models are replaced and inserted into the chuck connecting block 802; in another embodiment, the chuck body 803 is detachably connected to the chuck base 801, for example, by screwing, and the chuck base 801 and the connecting block are integrally formed.
The clamping base 10 is provided with 3 threaded holes, the threaded holes are formed in the middle of the 3 strip-shaped grooves 6, the round threaded holes are used for setting bolts fixed with the top cover 9, the top cover 9 is fixed on the clamping base 10, the height of the top cover 9 is adjusted, the sliding block connecting rod 7 can normally move below the top cover 9, and meanwhile the clamping blocks and the sliding block connecting rod 7 cannot axially move.
And a plurality of holes are formed in the outer edge of the clamping chassis 4 and used for fixing the clamping chassis 4 on other working platforms.
When the clamping device is used, as shown in the steps of fig. 2 and 3, when a tubular workpiece needs to be clamped, the cylinder 1 pushes the telescopic rod 2 forwards, so that the telescopic rod 2 moves forwards, the slide block connecting rod 7 is driven to move towards the axis of the clamping base 10, and the clamping block is driven to clamp the tubular workpiece. When needs loosen, cylinder 1 stimulates telescopic link 2 backward, can realize loosening the work piece, because pneumatic velocity is fast, efficient, through this mode, can realize pressing from both sides tightly and relaxing the work piece effectively, and process speed is very fast, and the centre gripping is stable, and the quick clamp of suitable tubulose work piece is got and is released.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and additions can be made without departing from the principle of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (9)
1. A rotary clamping device comprises a pneumatic system, a rotating system and a clamping system, and is characterized in that the pneumatic system comprises a cylinder and a telescopic rod; the rotating system comprises a rotating rod, a rotating disk, a clamping base and a clamping chassis; the clamping system comprises a chuck;
one section of the telescopic rod is arranged in the cylinder, the other section of the telescopic rod is connected to the rotating rod, the rotating rod is fixed with the rotating disk, the clamping chassis is fixed at the center of the clamping base, the rotating disk is sleeved on the circumferential surface of the clamping base, and the rotating disk can rotate along the periphery of the clamping base; a top cover is arranged above the rotating disc, and a through hole is formed in the middle of the top cover;
the clamping base is provided with a plurality of strip-shaped grooves in axial arrays on the upper side, the chucks are arranged in the strip-shaped grooves respectively and are connected with the slider connecting rod, and the other end of the slider connecting rod is provided with a fixed rotating shaft and is fixedly connected onto the rotating disk through the fixed rotating shaft.
2. A rotary clamping device according to claim 1 wherein the number of said grooves is 3, forming three evenly distributed trifurcated grooves, and the number of said collets provided in said grooves is also 3.
3. The rotary clamping device as claimed in claim 2, wherein the chuck comprises a chuck seat, a chuck connecting block and a chuck body, the chuck seat has a top part and a tail part, the chuck connecting block is arranged at the middle part of the chuck connecting block, the chuck connecting block is aligned with one end of the slider connecting rod through a round hole, a chuck connecting bolt is arranged at the round hole to fix the chuck connecting block and the slider connecting rod, the chuck connecting block and the chuck seat are both arranged in the strip-shaped groove, and a strip-shaped hole is arranged at the bottom of the strip-shaped groove to prevent the chuck connecting block from being rubbed by the bottom of the chuck connecting bolt when the chuck connecting block slides along the strip-shaped groove.
4. A rotary clamping device according to claim 3, wherein the collet body is a column, two non-stacked longitudinal arc-shaped cross bars are provided on both sides of the column, the arc-shaped cross bars of two adjacent collet bodies are staggered, the arc-shaped cross bars are oriented toward the axis, and when 3 collet bodies are closed, all arc-shaped cross bars form a cylindrical cavity.
5. The rotary clamping device as claimed in claim 4, wherein the tail of the chuck seat is provided with a dovetail block, a matched dovetail groove is arranged at the position of the chuck connecting block corresponding to the chuck base, and the dovetail block and the dovetail groove are used for realizing the quick connection of the chuck seat and the chuck connecting block;
the chuck body can be provided in a variety of heights and/or shapes.
6. A rotary clamping apparatus according to claim 5 wherein the clamping base has 3 threaded holes, the circular threaded holes being adapted to receive bolts for attachment to the top cover to secure the top cover to the clamping base and to adjust the height of the top cover to allow the slider linkage to move normally beneath the top cover.
7. A rotary clamping arrangement according to claim 6 wherein the outer edge of the clamping chassis is provided with a plurality of holes for securing the clamping chassis to a further work surface.
8. A rotary clamping device according to claim 1, wherein the rotary disk is provided with a notch at the side surface close to the upper side, 2 screw thread counter bores are arranged in the notch, 2 corresponding through holes are arranged on the corresponding rotary rods, and 2 rotary rod bolts are arranged in the through holes and the screw thread counter bores to fasten the rotary rods and the rotary disk.
9. A rotary clamping assembly according to claim 4 wherein the height of the top cover is less than the height of the chuck body, the aperture in the centre of the top cover is greater than the maximum distance of the chuck body during operation, and the chuck body extends beyond the top cover after the rotary clamping assembly is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685073.4A CN111922935A (en) | 2020-07-16 | 2020-07-16 | Rotary clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010685073.4A CN111922935A (en) | 2020-07-16 | 2020-07-16 | Rotary clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111922935A true CN111922935A (en) | 2020-11-13 |
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ID=73313994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010685073.4A Pending CN111922935A (en) | 2020-07-16 | 2020-07-16 | Rotary clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111922935A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960649A (en) * | 2021-02-09 | 2021-06-15 | 浙江理工大学 | Structure and portable oxygenerator are changed to molecular sieve jar of portable oxygenerator |
-
2020
- 2020-07-16 CN CN202010685073.4A patent/CN111922935A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112960649A (en) * | 2021-02-09 | 2021-06-15 | 浙江理工大学 | Structure and portable oxygenerator are changed to molecular sieve jar of portable oxygenerator |
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