CN220449556U - Clamping jaw and hoisting clamp - Google Patents
Clamping jaw and hoisting clamp Download PDFInfo
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- CN220449556U CN220449556U CN202420030268.9U CN202420030268U CN220449556U CN 220449556 U CN220449556 U CN 220449556U CN 202420030268 U CN202420030268 U CN 202420030268U CN 220449556 U CN220449556 U CN 220449556U
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- 230000013011 mating Effects 0.000 claims description 11
- 238000007713 directional crystallization Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 3
- 229920003055 poly(ester-imide) Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 230000005484 gravity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The application provides a clamping jaw and hoisting clamp, clamping jaw include articulates portion, flexible piece, hanging piece, connecting block and connection structure. The flexible piece is respectively connected with the hanging part and the hanging block. At least two connecting holes are formed in each hanging block, the hanging blocks are movably connected with the connecting blocks through one connecting hole, and the hanging blocks are connected with the flexible pieces through the other connecting holes. The connecting structure comprises a first matching piece and a second matching piece, the first matching piece is arranged on the hanging part, and the second matching piece is arranged on the connecting block; the first matching piece and the second matching piece are used for driving the hanging blocks when being connected, so that the diameter of the largest excircle formed by the outer side walls of the hanging blocks is matched with the inner diameter of the workpiece to be clamped so as to clamp the workpiece; the diameter of the largest excircle formed by the outer side walls of the hanging blocks is smaller than the inner diameter of the workpiece to be clamped so as to loosen the workpiece when the first matching piece and the second matching piece are separated. The clamping jaw and the lifting tool are simple in structure and easy to operate, and can provide stable and reliable clamping force.
Description
Technical Field
The application relates to the technical field of lifting clamp equipment, in particular to a clamping jaw and a lifting clamp.
Background
The transportation of the crucible for the directional crystallization vacuum furnace is one of the difficulties of the directional crystallization vacuum furnace in the production process, because the crucible for the directional crystallization vacuum furnace is relatively brittle, if the clamping force is too large, the crucible for the directional crystallization vacuum furnace is easy to break, and if the clamping force is too small, the crucible is easy to fall off in the clamping process. The inventor finds that in the process of realizing the application, the clamping jaw used in the prior art at present is not provided with a limiting device to limit the clamping distance and the clamping force, so that the clamping jaw is difficult to maintain stable clamping force. Meanwhile, the crucible for the directional crystallization vacuum furnace is generally placed in a centralized manner, the interval distance between the crucibles is smaller, and the existing clamping jaw is mostly clamped in a clamping mode from outside to inside, so that the crucible for densely placing is very inconvenient to clamp, and even clamping work is difficult to complete.
Disclosure of Invention
Based on this, this application provides a clamping jaw and lifting device to solve the unable stable clamping force that provides that exists among the prior art, and the inconvenient problem of operation of clamping mode.
In order to achieve the above purpose, the technical solution of the embodiments of the present application is implemented as follows:
on one hand, the embodiment of the application provides a clamping jaw, which comprises a hanging part, a flexible piece, a hanging block, a connecting block and a connecting structure;
the flexible piece is respectively connected with the hanging part and the hanging block;
the hanging blocks are uniformly distributed in the circumferential direction of the connecting block, each hanging block is provided with at least two connecting holes, the hanging blocks are movably connected with the connecting block through one connecting hole, and the hanging blocks are connected with the flexible piece through the other connecting hole;
the connecting structure comprises a first matching piece and a second matching piece, the first matching piece is arranged on one side of the hanging part close to the connecting block, and the second matching piece is arranged on one side of the connecting block close to the hanging part; the first matching piece and the second matching piece are used for driving the hanging blocks when being connected, so that the diameter of the largest excircle formed by the outer side walls of the hanging blocks is matched with the inner diameter of the workpiece to be clamped, and the workpiece is clamped by friction force; and when the first matching piece and the second matching piece are separated, the diameter of the largest excircle formed by the outer side walls of the hanging blocks is smaller than the inner diameter of the workpiece to be clamped so as to loosen the workpiece.
In one embodiment, the hanging portion is provided with a hanging structure, and the hanging structure is used for hanging with the carrying device.
In one embodiment, the flexible member comprises one or more of a chain, a wire rope, or a flexible connecting band.
In one embodiment, the first mating member is a hook, the second mating member is a hanging ring, or the first mating member is a hanging ring, and the second mating member is a hook; the second matching piece is fixed on the surface of one side of the connecting block, which is close to the hanging part, through a screw rod.
In one embodiment, the clamping jaw further comprises a guide block, and the guide block is arranged on one side of the connecting block away from the hanging portion and fixedly connected with the connecting block.
In one embodiment, the number of the flexible pieces is 3, 3 hanging blocks are uniformly distributed on the circumferential wall of the hanging portion, one end of each flexible piece is movably connected with the corresponding hanging block, and the other end of each flexible piece is movably connected with one connecting hole of the corresponding hanging block.
In one embodiment, the hanging block is a cake-shaped piece, and the connecting hole is formed along the axial direction of the hanging block; the circumferential surface of the hanging block is used for being in contact with a workpiece to be clamped.
In one embodiment, the hanging block is made of polyester imide material, and/or an anti-slip structure is arranged on the circumferential surface of the hanging block.
On the other hand, the embodiment of the application provides a lifting clamp for a crucible for a lifting clamp directional crystallization vacuum furnace, which comprises a carrying device and the clamping jaw, wherein the hanging part of the clamping jaw is used for being hung with the carrying device.
The application has at least the following beneficial effects: according to the clamping jaw, the hanging block and the hanging part are flexibly connected, the hanging block is arranged on the connecting block, the radial extension range of the hanging block is limited by arranging the first matching piece and the second matching piece which are matched with each other on the hanging part and the connecting block, and the radial extension range of the hanging block is matched with the inner diameter size of a workpiece to be clamped when the first matching piece and the second matching piece are connected, so that the workpiece is clamped; when the first matching piece and the second matching piece are separated, the radial extension range of the hanging block is smaller than the inner diameter size of the workpiece to be clamped, so that the workpiece is loosened. The clamping jaw of this application embodiment can keep the relative stability of clamp force through connection structure's limit function, simultaneously, the hanging piece is inside the work piece, adopts the mode of getting by inside-out clamp to the work piece through the effect of frictional force, very convenient intensive work piece of putting clamp get the work go on. The hoisting clamp provided by the embodiment of the application comprises the clamping jaw, so that the hoisting clamp also has the beneficial effects.
Drawings
Fig. 1 is a schematic diagram of the overall structure of a clamping jaw according to an embodiment of the present application.
Fig. 2 is an exploded view of the jaw of fig. 1.
Fig. 3 is a schematic structural view of the connection block of fig. 1.
The meaning of the various reference numerals in the drawings is as follows:
1. a hanging part; 11. a body portion; 12. a hitching structure; 13. a hanging block;
2. a flexible member;
3. a connection structure; 31. a first mating member; 32. a second mating member;
4. a screw; 41. a self-locking nut;
5. hanging blocks; 51. a connection hole; 52. a circumferential surface;
6. a connecting block; 61. an open slot; 62. a connecting shaft;
7. and a guide block.
Detailed Description
The technical scheme of the application is further elaborated below by referring to the drawings in the specification and the specific embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the implementations of the present application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
The lifting clamp of the embodiment of the application comprises a carrying device (not shown) and clamping jaws, wherein the clamping jaws are used for being hung on the carrying device, and the carrying device is used for driving the clamping jaws to convey the clamped workpiece to a specified position.
Referring to fig. 1 and 2, the clamping jaw of the present embodiment includes a hanging portion 1, a flexible member 2, a hanging block 5, a connecting block 6, a connecting structure 3 and a guiding block 7.
The hooking portion 1 of the present embodiment includes a cylindrical body portion 11, and a hooking structure 12 is provided at the top (direction shown in the drawing) of the body portion 11, and the hooking structure 12 is used for hooking with a conveying device, and the hooking structure 12 may be, for example, a hook, a hanging ring, or the like. The outer peripheral surface of the body 11 near the bottom is uniformly provided with a plurality of hooking blocks 13, and for maintaining balance, the number of the hooking blocks 13 is preferably not less than 3, for example, in the present embodiment, the number of the hooking blocks 13 is 3, and in other embodiments, 4, 5 or more hooking blocks 13 may be provided, and the specific number is not required.
The number of the flexible members 2 is set corresponding to the number of the hanging blocks 13, the number of the flexible members 2 in this embodiment is also 3, and the flexible members 2 may be various components capable of realizing flexible connection, such as a chain, a steel wire rope or a flexible connection belt. In this embodiment a chain is used as the flexible member 2. One end of each of the 3 flexible pieces 2 is respectively arranged on the corresponding hanging block 13 in a penetrating way, and the flexible pieces 2 are movably connected with the hanging blocks 13.
As shown in fig. 2 and 3, the hanging blocks 5 are uniformly distributed in the circumferential direction of the connecting block 6, and the number of hanging blocks 5 is set corresponding to the number of flexible members 2, and in this embodiment, the number of hanging blocks 5 is also 3. In this embodiment, the hanging block 5 is a round cake-shaped member, that is, the hanging block 5 is in a shape of a flat cylinder, and the connecting hole 51 is formed along the axial direction of the hanging block 5, that is, the connecting hole 51 is formed on two planes of the hanging block 5. The circumferential surface 52 of the hanging block 5 is used for contacting with the workpiece to be clamped. Each hanging block 5 is provided with at least two connecting holes 51, in this embodiment, each hanging block 5 is provided with two connecting holes 51 respectively, the hanging block 5 is movably connected with the connecting block 6 through one connecting hole 51, and the hanging block 5 is movably connected with the other end of the flexible member 2 through the other connecting hole 51. The connecting block 6 is provided with a connecting shaft 62 and an open slot 61 at the corresponding position of the hanging block 5, one connecting hole 51 of the hanging block 5 is penetrated on the connecting shaft 62, and the hanging block 5 can rotate in or out of the open slot 61 around the connecting shaft 62.
The connecting structure 3 comprises a first matching piece 31 and a second matching piece 32, the first matching piece 31 is arranged on one side of the hanging part 1 close to the connecting block 6, and the second matching piece 32 is arranged on one side of the connecting block 6 close to the hanging part 1; the first matching piece 31 and the second matching piece 32 are used for driving the hanging blocks 5 to move upwards when being connected, so that the diameter of the largest outer circle formed by the outer side walls (the outermost side of the circumferential surface 52) of the hanging blocks 5 is matched with the inner diameter of a workpiece to be clamped so as to clamp the workpiece through friction force; the first fitting 31 and the second fitting 32 are separated so that the diameter of the largest outer circle formed by the outer side walls of the plurality of hanging pieces 5 is smaller than the inner diameter of the workpiece to be gripped to loosen the workpiece. For example, the second matching piece 32 and the connecting block 6 can be connected through threads, and the diameter of the largest outer circle formed by the outer side walls of the hanging blocks 5 can be conveniently changed by changing the length of the second matching piece 32 and the connecting block 6 through threaded matching, so that the clamping range of the clamping jaw is enlarged, and workpieces with different inner diameter sizes are matched. The structure has the advantages of convenient adjustment, large adjustment range and strong universal performance, and the self-locking nut 41 is arranged on the screw 4 of the second matching piece 32, so that the loosening problem can not occur.
In this embodiment, the first mating member 31 is a hook, the second mating member 32 is a hanging ring, and the hook is inserted into the hanging ring to form a connection. The hanging ring is fixed on the surface of one side of the connecting block 6, which is close to the hanging part 1, through a screw 4. In other embodiments, the first mating member 31 may be provided as a hanging ring and the second mating member 32 may be provided as a hanging hook.
The screw 4 passes through the surface of the connecting block 6 far away from the side of the hanging part 1 and is fixedly connected with the guide block 7. The guide block 7 in the present embodiment is cylindrical, and may have any shape in other embodiments. The circumference size of the guide block 7 is smaller than the inner diameter size of the workpiece to be clamped, and the guide block 7 is used for contacting with the bottom of the workpiece to be clamped so as to play a supporting role on the connecting block 6, so that the hanging block 5 falls down when the workpiece is loosened.
The connecting line of the centers of the two connecting holes 51 in this embodiment is not located on the same diameter of the circumferential surface of the hanging block 5. In order to facilitate the hanging block 5 to automatically fall down according to the self gravity before loosening the workpiece or clamping the workpiece, the connecting length of the flexible piece 2 can be adjusted, so that when the first matching piece 31 and the second matching piece 32 are connected, the center of the circle of the hanging block 5 is positioned at the outer side of the vertical line, namely, even if the center of gravity of the hanging block 5 is positioned at one side far away from the center of the connecting block 6, the hanging block 5 can fall down according to the gravity.
To further enhance the friction between the hanging block 5 and the workpiece, a more stable and reliable clamping force is provided, the hanging block 5 may be made of a polyester-imide material, and an anti-slip structure (not shown) may be provided on the circumferential surface 52 of the hanging block 5 for contacting with the inner surface of the workpiece, where the anti-slip structure may be, for example, a ripple, a bump, a knurl or the like capable of increasing the friction force.
The clamping jaw of the embodiment of the application not only can be used for clamping the crucible for the directional crystallization vacuum furnace, but also can be used for clamping other hole-shaped pieces, and has a wide application range. The clamping jaw of this application embodiment simple structure, the operation of being convenient for can provide stable clamp and get the power, avoids getting the emergence of the too big or too little crucible damage phenomenon that leads to of dynamics because of pressing from both sides and getting, presss from both sides and gets the mode reliability strong. The clamping jaw cooperation handling device of this application embodiment is together, can be used to the clamping work under some special environment, for example to the clamping work when work piece temperature is higher. Simultaneously, the clamping mode from inside to outside can facilitate the clamping of the densely arranged workpieces.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. The clamping jaw is characterized by comprising a hanging part, a flexible piece, a hanging block, a connecting block and a connecting structure;
the flexible piece is respectively connected with the hanging part and the hanging block;
the hanging blocks are uniformly distributed in the circumferential direction of the connecting block, each hanging block is provided with at least two connecting holes, the hanging blocks are movably connected with the connecting block through one connecting hole, and the hanging blocks are connected with the flexible piece through the other connecting hole;
the connecting structure comprises a first matching piece and a second matching piece, wherein the first matching piece is a hook, the second matching piece is a hanging ring, or the first matching piece is a hanging ring, and the second matching piece is a hook; the first matching piece is arranged on one side of the hanging part close to the connecting block, and the second matching piece is arranged on one side of the connecting block close to the hanging part; the first matching piece and the second matching piece are used for driving the hanging blocks when being connected, so that the diameter of the largest excircle formed by the outer side walls of the hanging blocks is matched with the inner diameter of the workpiece to be clamped, and the workpiece is clamped by friction force; and when the first matching piece and the second matching piece are separated, the diameter of the largest excircle formed by the outer side walls of the hanging blocks is smaller than the inner diameter of the workpiece to be clamped so as to loosen the workpiece.
2. A jaw as claimed in claim 1, characterized in that the hooking portion is provided with a hooking structure for hooking with a handling device.
3. A jaw as claimed in claim 1, wherein the flexible member may be a chain, a wire rope or a flexible connecting band.
4. A jaw according to claim 1, wherein the second mating member is secured to a surface of the connection block on a side thereof adjacent to the hitching section by a screw.
5. A jaw as claimed in claim 4, wherein the distance of engagement of the screw with the connection block is adjustable, the adjustment of the engagement distance between the screw and the connection block being used to adjust the diameter of the largest outer circle formed by the plurality of hanger bar outer side walls.
6. A jaw as claimed in claim 1, further comprising a guide block provided on a side of the connection block remote from the hitching section and fixedly connected to the connection block.
7. The clamping jaw of claim 1, wherein the number of the flexible pieces is 3, 3 hanging blocks are uniformly distributed on the circumferential wall of the hanging part, one end of each flexible piece is movably connected with the corresponding hanging block, and the other end of each flexible piece is movably connected with one connecting hole of the corresponding hanging block.
8. A jaw as claimed in claim 7, wherein said hanging block is a pie-shaped member, said connecting hole being open along an axial direction of said hanging block; the circumferential surface of the hanging block is used for being in contact with a workpiece to be clamped.
9. A jaw as claimed in claim 8, wherein the hanging block is made of a polyester imide material and/or an anti-slip structure is provided on a circumferential surface of the hanging block.
10. A lifting clamp for lifting a crucible for a directional crystallization vacuum furnace, comprising a carrying device and a clamping jaw according to any one of claims 1 to 9, wherein a hanging part of the clamping jaw is used for hanging with the carrying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420030268.9U CN220449556U (en) | 2024-01-05 | 2024-01-05 | Clamping jaw and hoisting clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202420030268.9U CN220449556U (en) | 2024-01-05 | 2024-01-05 | Clamping jaw and hoisting clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220449556U true CN220449556U (en) | 2024-02-06 |
Family
ID=89738138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202420030268.9U Active CN220449556U (en) | 2024-01-05 | 2024-01-05 | Clamping jaw and hoisting clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220449556U (en) |
-
2024
- 2024-01-05 CN CN202420030268.9U patent/CN220449556U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |