CN112757188B - Connecting rod self-centering clamp - Google Patents
Connecting rod self-centering clamp Download PDFInfo
- Publication number
- CN112757188B CN112757188B CN202110075942.6A CN202110075942A CN112757188B CN 112757188 B CN112757188 B CN 112757188B CN 202110075942 A CN202110075942 A CN 202110075942A CN 112757188 B CN112757188 B CN 112757188B
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- fixed
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- connecting rod
- block
- clamp
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- 238000012545 processing Methods 0.000 abstract description 2
- 230000001360 synchronised effect Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
Classifications
-
- 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
Abstract
The application discloses connecting rod self-centering anchor clamps, including anchor clamps body, clamping structure and split structure, the upper and lower end of anchor clamps body all is fixed with the rotation axis. Through pressing from both sides tight cylinder and connecting rod cooperation that resets, make arm lock and center movable block synchronous be close to the work piece centre of a circle, it is tight after contacting the work piece simultaneously to remove the fixed contact piece on contact block and the arm lock, realize the self-centering of work piece, avoid influencing the problem of follow-up processing because of the anchor clamps can't be from the centering, the convenience when having improved anchor clamps use, through fixed loop bar and dead lever cooperation, the convenience is with fixed contact piece follow arm lock split, thereby the convenience is changed movable contact piece and fixed contact piece, avoid influencing the problem of centre gripping because of movable contact piece and fixed contact piece wearing and tearing, stability when having guaranteed the centre gripping, avoid the movable contact piece directly striking work piece to cause the work piece to damage, thereby protect the work piece, the practicality of anchor clamps has been improved.
Description
Technical Field
The application relates to a self-centering fixture, in particular to a connecting rod self-centering fixture.
Background
When many round workpieces are manufactured, the round workpieces are clamped and fixed by the clamp with the arc clamping arms, and the clamp on the market at present basically meets the daily demands of people along with the rapid development of the production process, but still has a certain stability.
The common multi-connecting rod clamp cannot realize the self-centering function, and the circle centers of the workpieces with different diameters are not at the same position after being clamped, so that the clamped workpieces are likely to be adjusted according to the circle center positions of the workpieces due to different circle center positions during production and processing, the workload of staff is increased, and the convenience of the clamp during use is reduced.
And the clamp can be contacted with the workpiece through the contact block with the anti-slip protection pad when in use, but because the contact block is contacted with the workpiece for a long time, abrasion possibly occurs, so that the clamp is not stable enough when in clamping, the contact block on the existing clamping arm cannot be independently replaced and maintained, and the clamp can push the center moving block to move for clamping through the clamping reset cylinder when in clamping, but because the center moving block is in repeated movement, collision possibly occurs with the clamp. Therefore, a connecting rod self-centering jig is proposed for the above-described problems.
Disclosure of Invention
The connecting rod self-centering clamp comprises a clamp body and a clamping structure splitting structure, wherein the upper end and the lower end of the clamp body are both fixed with rotating shafts;
the clamping structure comprises clamping arms, the side edges of the clamp body are connected with a clamping reset cylinder through bolts, a center moving block is connected inside the clamp body in a sliding manner, the clamping arms are symmetrically and rotationally connected to the clamp body on the side edges of the center moving block, one ends of the clamping arms on the clamp body are all rotationally provided with connecting rods, the other ends of the connecting rods are all rotationally connected with the center moving block, the front end and the rear end of the center moving block are symmetrically fixed with moving contact blocks through bolts, and the other ends of the clamping arms are all clamped with fixed contact blocks;
the split structure comprises a fixed loop bar, wherein the fixed loop bar is fixed at one end of the fixed contact block, which is close to the clamping arm, and the fixed loop bar is inserted into the clamping arm, the fixed loop bar in the clamping arm is sleeved with the fixed bar, the other end of the fixed bar is extended to the outer side of the clamping arm, the fixed loop bar in the side of the fixed bar is provided with a moving groove matched with the fixed bar, the fixed loop bar in the side of the fixed bar is connected with a moving plate in a sliding manner, a first spring is fixed between the moving plate and the fixed loop bar, the upper end and the lower end of the central moving block are respectively fixed with a connecting rod, the inner part of the clamp body is provided with a first sliding groove matched with the connecting rod, the outer end of the connecting rod is respectively fixed with a sliding block, the inner part of the second sliding groove on two sides of the sliding block is respectively provided with a buffer block, and a second spring is respectively fixed between the outer end of the buffer block and the side wall of the second spring.
Further, the clamp body is provided with a movement track guide groove matched with the clamp arm, and the clamp arm moves circularly by taking the joint as a dot seat.
Further, the inside of the clamping arm is provided with a placing groove matched with the fixed sleeve rod, and the length of the outer end of the fixed rod is larger than that of the placing groove.
Further, the clamping arms and the movable contact blocks are all arranged in mutually matched arc shapes, and the fixed contact blocks are all arranged in inclined shapes in which the clamping arms are matched.
Further, the fixed contact blocks are all arranged in an L shape which is matched with the clamping arms and is transversely placed, and the heights of the fixed contact blocks are smaller than the heights of the clamping arms.
Further, the inside of the fixed loop bar is provided with inverted T-shaped grooves matched with the fixed bar, and the heights of the first springs are equal to the heights of the T-shaped grooves.
Furthermore, the fixing rods are all in an I shape, and clamping grooves matched with the fixing rods are formed in the top ends of the fixing sleeve rods.
Further, the diameter width of the fixed rod is smaller than the width of the clamping arm, and the diameter length of the moving plate is larger than the length of the inner end of the fixed rod.
Further, the lengths of the first sliding grooves are smaller than those of the second sliding grooves, and the widths of the sliding blocks are larger than those of the first sliding grooves.
Further, the width of the buffer blocks is larger than that of the first sliding grooves, and the length of the second springs is larger than that between the first sliding groove ends and the second spring ends.
The beneficial effects of this application are: the application provides a connecting rod self-centering fixture.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic perspective view of an embodiment of the present application;
FIG. 2 is a schematic diagram of a structural body of an embodiment of the present application;
FIG. 3 is a partial cross-sectional elevation view of a clamp arm according to one embodiment of the present application;
FIG. 4 is a partial structural elevational cross-sectional schematic view of a clamp body according to one embodiment of the present application;
fig. 5 is a schematic top view of a structure of a fixed contact block according to an embodiment of the present application.
In the figure: 1. the fixture comprises a fixture body, 2, a rotating shaft, 3, a clamping reset cylinder, 4, a clamping arm, 5, a connecting rod, 6, a center moving block, 7, a moving contact block, 8, a fixed contact block, 9, a fixed loop bar, 10, a fixed rod, 11, a moving groove, 12, a moving plate, 13, a first spring, 14, a connecting rod, 15, a first sliding groove, 16, a sliding block, 17, a second sliding groove, 18, a buffer block, 19 and a second spring.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal" and the like indicate an azimuth or a positional relationship based on that shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "mounted," "configured," "provided," "connected," "coupled," and "sleeved" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Referring to fig. 1-4, the connecting rod self-centering clamp comprises a clamp body 1, a clamping structure and a detaching structure, wherein the upper end and the lower end of the clamp body 1 are both fixed with a rotating shaft 2;
the clamping structure comprises clamping arms 4, wherein the side edge of a clamp body 1 is connected with a clamping reset cylinder 3 through bolts, a center moving block 6 is connected inside the clamp body 1 in a sliding manner, the clamping arms 4 are symmetrically and rotationally connected to the clamp body 1 at the side edge of the center moving block 6, one ends of the clamping arms 4 on the clamp body 1 are all rotationally provided with connecting rods 5, the other ends of the connecting rods 5 are all rotationally connected with the center moving block 6, the front end and the rear end of the center moving block 6 are symmetrically fixed with a moving contact block 7 through bolts, and the other ends of the clamping arms 4 are all clamped with fixed contact blocks 8;
the split structure comprises a fixed loop bar 9, wherein the fixed loop bar 9 is fixed at one end of a fixed contact block 8 close to a clamping arm 4, the fixed loop bar 9 is inserted into the clamping arm 4, the fixed loop bar 9 end inside the clamping arm 4 is sleeved with a fixed bar 10, the other end of the fixed bar 10 extends to the outer side of the clamping arm 4, a moving groove 11 matched with the fixed bar 10 is formed in the fixed loop bar 9, a moving plate 12 is slidably connected in the fixed loop bar 9 at the side edge of the fixed bar 10, a first spring 13 is fixed between the moving plate 12 and the fixed loop bar 9, a connecting rod 14 is fixed at the upper end and the lower end of a center moving block 6, a first sliding groove 15 matched with the connecting rod 14 is formed in the inside of a clamp body 1, a sliding block 16 is fixed at the outer end of the connecting rod 14, a second sliding groove 17 matched with the sliding block 16 is formed in the inside of the clamp body 1, a buffer block 18 is slidably connected in the second sliding groove 17 at the two sides of the sliding block 16, and a second spring 19 is fixed between the outer end of the buffer block 18 and the second spring 19.
The clamp body 1 is provided with movement track guide grooves matched with the clamp arms 4, and the clamp arms 4 move circularly by taking the joints as dot seats, so that the clamp arms 4 can stably move to clamp a workpiece; the inside of the clamping arm 4 is provided with a placing groove matched with the fixed sleeve rod 9, the length of the outer end of the fixed rod 10 is larger than that of the placing groove, the fixed sleeve rod 9 is conveniently inserted into the inside of the clamping arm 4, the outer end of the fixed rod 10 can be ensured to be abutted on the clamping arm 4, and therefore the fixed contact block 8 is conveniently fixed on the clamping arm 4; the clamping arms 4 and the movable contact blocks 7 are arranged in mutually matched arc shapes, and the fixed contact blocks 8 are arranged in an inclined shape matched with the clamping arms 4, so that the clamping arms 4 and the movable contact blocks 7 can be conveniently matched for clamping; the fixed contact blocks 8 are all arranged in an L shape which is matched with the clamping arms 4 and is transversely placed, and the heights of the fixed contact blocks 8 are smaller than the heights of the clamping arms 4; the inside of the fixed loop bar 9 is provided with inverted T-shaped grooves matched with the fixed bar 10, and the heights of the first springs 13 are equal to the heights of the T-shaped grooves, so that the first springs 13 can push the fixed bar 10 to be abutted inside the fixed loop bar 9, and the fixed contact block 8 is conveniently fixed on the clamping arm 4; the fixing rods 10 are all in an I shape, and clamping grooves matched with the fixing rods 10 are formed in the top ends of the fixing sleeve rods 9; the diameter width of the fixed rod 10 is smaller than the width of the clamping arm 4, and the diameter length of the movable plate 12 is larger than the length of the inner end of the fixed rod 10, so that the fixed rod 10 is prevented from affecting the normal use of the clamping arm 4; the length of the first sliding groove 15 is smaller than that of the second sliding groove 17, and the width of the sliding block 16 is larger than that of the first sliding groove 15, so that the sliding block 16 can only slide in the second sliding groove 17; the width of the buffer block 18 is larger than the width of the first chute 15, and the length of the second spring 19 is larger than the length between the end of the first chute 15 and the end of the second spring 19, so that the buffer block 18 is prevented from affecting the normal movement of the buffer block 18 when the buffer block 18 moves inside the second chute 17 above the first chute 15.
When the clamping device is used, when clamping is required, the center moving block 6 reciprocates in the groove in the center of the clamp body 1, the clamp arm 4 circularly moves around a fixed point on the body, the connecting rod 5 is connected with the center moving block 6 and the clamp arm 4, the center moving block 6 is provided with the front moving contact block 7 and the rear moving contact block 7, the rotating shafts 2 on two sides are matched with bearings to enable the clamp and the workpiece to rotate for a certain angle, the clamping reset cylinder 3 pushes the center moving block 6 to advance, when the connecting rod 5 transmits the movement to the clamp arm 4, the clamp arm 4 and the center moving block 6 synchronously approach the center of the workpiece, the moving contact block 7 and the fixed contact block 8 on the clamp arm 4 simultaneously contact the workpiece and clamp the workpiece, so that self-centering of the workpiece is realized, when the center moving block 6 moves, the slider 16 is driven to move in the second sliding groove 17 through the connecting rod 14 on the upper end and the lower end, the sliding block 16 is firstly contacted with the buffer block 18, the sliding block 16 compresses the second spring 19 through the buffer block 18 when moving, namely, the reaction force generated by the deformation of the second spring 19 counteracts part of extrusion force, so that the movable contact block 7 is prevented from directly colliding with a workpiece to generate vibration, the workpiece is prevented from being damaged by clamping, when the movable contact block 7 and the fixed contact block 8 are used for a long time and need to be maintained and replaced, the fixed rod 10 is pressed, the first spring 13 is compressed by the movable plate 12 to move towards the inside of the fixed sleeve rod 9, when the fixed rod 10 moves out of the clamping groove, the fixed rod 10 is rotated, so that the fixed rod 10 and the fixed sleeve rod 9 are pulled out from the inside of the clamping arm 4 after the fixed rod 10 is aligned with the movable groove 11, the fixed contact block 8 can be replaced, the movable contact block 7 can be replaced by screwing the bolt, and after the replacement of the movable contact block 7 is completed, after the fixed contact block 8 is replaced, the fixed contact block 8 is clamped and placed on the eastern side in the clamping arm 4, the fixed sleeve rod 9 is inserted into the placing groove, the fixed rod 10 is inserted into the fixed sleeve rod 9 through the moving groove 11, the fixed rod 10 is pressed, the fixed rod 10 is rotated to be aligned with the clamping, and the fixed rod 10 is loosened, so that the fixed rod 10 is abutted to the inside of the clamping groove under the pushing of the first spring 13.
The beneficial point of the application lies in:
1. the clamp is simple in structure and convenient to operate, the clamp arm 4 and the center moving block 6 are synchronously close to the center of a workpiece through the cooperation of the clamping reset cylinder 3 and the connecting rod 5, the moving contact block 7 and the fixed contact block 8 on the clamp arm 4 are simultaneously contacted with the workpiece and then clamped, self-centering of the workpiece is realized, the problem that follow-up machining is influenced due to the fact that the clamp cannot be self-centered is avoided, and convenience of the clamp in use is improved;
2. the clamping arm clamping device is reasonable in structure, the fixed contact block 8 is conveniently detached from the clamping arm 4 through the cooperation of the fixed loop bar 9 and the fixed bar 10, so that the movable contact block 7 and the fixed contact block 8 are conveniently replaced, the problem that clamping is affected due to abrasion of the movable contact block 7 and the fixed contact block 8 is avoided, and the stability during clamping is ensured;
3. this application is rational in infrastructure, through buffer block 18 and second spring 19 cooperation, carries out buffer protection to center movable block 6 and movable contact block 7, avoids movable contact block 7 direct impact work piece to cause the work piece to damage to protect the work piece, improved the practicality of anchor clamps.
Since the internal structure of the clamping reset cylinder belongs to the prior art, it is not described in this application.
The related circuits, electronic components and modules are all in the prior art, and can be completely implemented by those skilled in the art, and needless to say, the protection of the present application does not relate to improvements of software and methods.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims (4)
1. Connecting rod self-centering anchor clamps, its characterized in that: the clamp comprises a clamp body (1), a clamping structure and a splitting structure, wherein the upper end and the lower end of the clamp body (1) are both fixed with rotating shafts (2);
the clamping structure comprises a clamping arm (4), the side edge of a clamp body (1) is connected with a clamping reset cylinder (3) through a bolt, a center moving block (6) is connected inside the clamp body (1) in a sliding manner, the clamping arm (4) is symmetrically and rotationally connected to the clamp body (1) on the side edge of the center moving block (6), one end of the clamping arm (4) on the clamp body (1) is rotationally connected with a connecting rod (5), the other end of the connecting rod (5) is rotationally connected with the center moving block (6), a movable contact block (7) is symmetrically and fixedly arranged at the front end and the rear end of the center moving block (6) through bolts, and a fixed contact block (8) is clamped at the other end of the clamping arm (4);
the split structure comprises a fixed loop bar (9), wherein one end of a fixed contact block (8) close to a clamping arm (4) is fixedly provided with the fixed loop bar (9), the fixed loop bar (9) is inserted into the clamping arm (4), the fixed loop bar (9) end in the clamping arm (4) is sleeved with a fixed bar (10), the other end of the fixed bar (10) is extended to the outer side of the clamping arm (4), the fixed loop bar (9) is internally provided with a moving groove (11) matched with the fixed bar (10), the fixed loop bar (9) on the side edge of the fixed bar (10) is internally connected with a moving plate (12) in a sliding manner, and a first spring (13) is fixed between the moving plate (12) and the fixed loop bar (9);
the clamp comprises a clamp body (1), wherein the clamp body is provided with a movement track guide groove matched with a clamp arm (4), the clamp arm (4) moves circularly by taking a joint as a round point seat, the inside of the clamp arm (4) is provided with a placing groove matched with a fixed sleeve rod (9), and the length of the outer end of a fixed rod (10) is greater than that of the placing groove;
the clamping arms (4) and the movable contact blocks (7) are arranged in mutually matched arc shapes, and the fixed contact blocks (8) are arranged in an inclined shape matched with the clamping arms (4);
the fixed contact blocks (8) are all arranged in an L shape which is matched with the clamping arms (4) and is transversely placed, and the heights of the fixed contact blocks (8) are smaller than the heights of the clamping arms (4);
the fixture is characterized in that a first chute (15) matched with the connecting rod (14) is formed in the fixture body (1), a sliding block (16) is fixed at the outer end of the connecting rod (14), a second chute (17) matched with the sliding block (16) is formed in the fixture body (1), a buffer block (18) is slidably connected in the second chute (17) on two sides of the sliding block (16), and a second spring (19) is fixed between the outer end of the buffer block (18) and the side wall of the second spring (19).
2. The connecting rod self-centering fixture of claim 1, wherein: the inside of the fixed loop bar (9) is provided with inverted T-shaped grooves matched with the fixed bar (10), and the heights of the first springs (13) are equal to the heights of the T-shaped grooves.
3. The connecting rod self-centering fixture of claim 1, wherein: the fixing rods (10) are all in an I shape, and clamping grooves matched with the fixing rods (10) are formed in the top ends of the fixing sleeve rods (9).
4. The connecting rod self-centering fixture of claim 1, wherein: the diameter width of the fixed rod (10) is smaller than the width of the clamping arm (4), and the diameter length of the movable plate (12) is larger than the length of the inner end of the fixed rod (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110075942.6A CN112757188B (en) | 2021-01-20 | 2021-01-20 | Connecting rod self-centering clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110075942.6A CN112757188B (en) | 2021-01-20 | 2021-01-20 | Connecting rod self-centering clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112757188A CN112757188A (en) | 2021-05-07 |
| CN112757188B true CN112757188B (en) | 2023-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110075942.6A Active CN112757188B (en) | 2021-01-20 | 2021-01-20 | Connecting rod self-centering clamp |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113714717B (en) * | 2021-08-31 | 2023-07-07 | 重庆大学 | Electromagnetic pulse connection feeding device based on visual recognition |
| CN113927107A (en) * | 2021-11-19 | 2022-01-14 | 中材科技（九江）有限公司 | Top bowl for machining gas cylinder bottleneck |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296837A (en) * | 2018-04-28 | 2018-07-20 | 福建省通通发科技发展有限公司 | A kind of clamp assembly of novel clamping workpiece |
| CN208358838U (en) * | 2018-05-30 | 2019-01-11 | 佛山市恩仕自动化设备有限公司 | A kind of clamp hand of knockout machine |
| CN108910521A (en) * | 2018-08-14 | 2018-11-30 | 杭州中为光电技术有限公司 | The fixture carried for silicon single crystal rod |
| CN210732451U (en) * | 2019-10-24 | 2020-06-12 | 山东科技大学 | Novel robot snatchs arm |
| CN212044803U (en) * | 2020-04-13 | 2020-12-01 | 宏源精工车轮股份有限公司 | Power gripping apparatus for robot |
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