CN215616527U - Lever type connecting rod self-locking clamp - Google Patents
Lever type connecting rod self-locking clamp Download PDFInfo
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- CN215616527U CN215616527U CN202120926118.2U CN202120926118U CN215616527U CN 215616527 U CN215616527 U CN 215616527U CN 202120926118 U CN202120926118 U CN 202120926118U CN 215616527 U CN215616527 U CN 215616527U
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- connecting rod
- pressing plate
- double
- nut
- locking clamp
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Abstract
The utility model relates to the technical field of workpiece processing, in particular to a lever type connecting rod self-locking clamp which comprises a pressing plate, wherein one end of the pressing plate is rotatably connected with a double connecting rod, the double connecting rod is connected with a connecting rod, the connecting rod is connected with a bottom plate, the middle part of the pressing plate is rotatably connected with a bush which moves up and down, and the other end of the pressing plate is rotatably connected with a pressing block; the lifting nut is arranged above the bushing, the nut is arranged below the bushing, the middle of the bushing is of a hollow structure, and the threaded shaft on the upper surface of the bottom plate sequentially penetrates through the nut, the bushing and the lifting nut. This application can realize quick clamping and dismantlement through the prismatic axle of twisting the double connecting rod soon, guarantees the face contact of anchor clamps and work piece through articulated briquetting, has the dismouting high efficiency, adapts to the clamping face of slope and prevents the advantage that the clamping face damaged.
Description
Technical Field
The utility model relates to the technical field of workpiece processing, in particular to a lever type connecting rod self-locking clamp.
Background
In order to clamp a workpiece, especially a workpiece without a hole, in a machining process, a part must be directly pressed and clamped on a workbench or a tool by using a clamp such as a pressure plate.
In the prior art, as a patent with the patent application number of 201820632986.8 and the name of 'a self-locking clamp', the technical scheme is as follows: the utility model discloses a self-locking clamp which comprises a rack, a suspender, a connecting rod and a clamp. The lifting rod is used for vertically lifting, and the acting force of the clamped workpiece is converted into the direction and the size through the transmission mechanism and the connecting rod under the action of the self gravity of the clamped workpiece, so that the workpiece is clamped by self-locking of the clamp, and the hoisting and the transportation of the workpiece are finished.
For the clamp, on one hand, the problem of inconvenience in clamping and dismounting exists in the using process; on the other hand, in the installation process of the pressing plate, the pressing surface of the workpiece is inclined and the pressing plate is inclined in the installation process, so that the pressing plate is difficult to be parallel to the clamping surface of the workpiece, the clamping contact part of the pressing plate and the workpiece generates line contact in the installation process, and the pressing surface of the workpiece is easy to damage.
Disclosure of Invention
In order to overcome the problems existing in the prior art, a lever type connecting rod self-locking clamp which can realize quick clamping and disassembly and ensure the surface contact of the clamp and a workpiece is provided.
In order to achieve the technical effects, the technical scheme of the application is as follows:
a lever type connecting rod self-locking clamp comprises a pressing plate, wherein one end of the pressing plate is rotatably connected with a double connecting rod, the double connecting rod is connected with a connecting rod, the connecting rod is connected with a bottom plate, the middle part of the pressing plate is rotatably connected with a bush which moves up and down, and the other end of the pressing plate is rotatably connected with a pressing block; the lifting nut is arranged above the bushing, the nut is arranged below the bushing, the middle of the bushing is of a hollow structure, and the threaded shaft on the upper surface of the bottom plate sequentially penetrates through the nut, the bushing and the lifting nut. The nut and the lifting nut are clamped at two sides of the bush through threaded connection and are connected to the threaded shaft of the bottom plate through threads.
Further, the bottom of bottom plate is provided with the connecting block. The connecting block is a stud or a T-shaped block.
Furthermore, the double connecting rods are connected with the pressing plate through the first revolute pair, the bushing is connected with the pressing plate through the second revolute pair, and the pressing block is connected with the pressing plate through the third revolute pair. Specifically, pins are inserted into corresponding holes to assemble, so as to form a revolute pair.
Furthermore, the top of the lifting nut is provided with a nut, the bottom of the lifting nut is provided with an external thread, the middle of the lifting nut is of a hollow structure, and an internal thread is arranged in the hollow structure.
Further, the nut is used with the external screw thread cooperation of lift nut, and the external screw thread on the screw spindle is used with the internal thread cooperation of lift nut.
Furthermore, two sides of the double connecting rods are respectively provided with a connecting rod, and each connecting rod is rotatably connected with the bottom plate.
Furthermore, the connecting shaft of the double connecting rods connected with the connecting rods is a prism shaft. Preferably, the prism axis is a regular hexagonal prism.
Furthermore, notches for connecting with the connecting rods or the double connecting rods are arranged on the pressing plate and the bottom plate, and when the connecting rods and the double connecting rods rotate to be vertical to the pressing plate and the bottom plate or exceed the vertical position, three side walls of the notches are in contact with the connecting rods and the double connecting rods. Preferably, the connecting rod and the double connecting rod are rotated to exceed the vertical position by 5 degrees and are abutted with three side walls of the notch.
The application has the advantages that:
this application can realize quick clamping and dismantlement through the prismatic axle of twisting the double connecting rod soon, guarantees the face contact of anchor clamps and work piece through articulated briquetting, has the dismouting high efficiency, adapts to the clamping face of slope and prevents the advantage that the clamping face damaged.
Drawings
FIG. 1 is a schematic diagram of an embodiment.
Figure 2 is an exploded view of one embodiment.
1-pressing plate, 2-double connecting rod, 3-connecting rod, 4-bottom plate, 5-nut, 6-pressing block, 7-lifting nut, 8-bush, 1.1-first rotating pair, 1.2-second rotating pair, 1.3-third rotating pair, 2.1-prism shaft, 4.1-connecting block and 4.2-screw shaft.
Detailed Description
Example 1
The lever type connecting rod self-locking clamp comprises a pressing plate 1, wherein one end of the pressing plate 1 is rotatably connected with a double connecting rod 2, the double connecting rod 2 is connected with a connecting rod 3, the connecting rod 3 is connected with a bottom plate 4, the middle part of the pressing plate 1 is rotatably connected with a bush 8 which moves up and down, and the other end of the pressing plate 1 is rotatably connected with a pressing block 6; the lifting nut 7 is arranged above the bushing 8, the nut 5 is arranged below the bushing 8, the middle of the bushing 8 is of a hollow structure, and the threaded shaft 4.2 on the upper surface of the bottom plate 4 sequentially penetrates through the nut 5, the bushing 8 and the lifting nut 7. The nut 5 and the lifting nut 7 are clamped on both sides of the bush 8 by a screw connection and are screwed on the threaded shaft 4.2 of the base plate 4. This application can be through revolving prismatic axle 2.1 realization quick clamping and the dismantlement of twisting double connecting rod 2, guarantees the face contact of anchor clamps and work piece through articulated briquetting 6, has that the dismouting is high-efficient, the clamping face that adapts to the slope and prevents the advantage of clamping face damage.
Example 2
The lever type connecting rod self-locking clamp comprises a pressing plate 1, wherein one end of the pressing plate 1 is rotatably connected with a double connecting rod 2, the double connecting rod 2 is connected with a connecting rod 3, the connecting rod 3 is connected with a bottom plate 4, the middle part of the pressing plate 1 is rotatably connected with a bush 8 which moves up and down, and the other end of the pressing plate 1 is rotatably connected with a pressing block 6; the lifting nut 7 is arranged above the bushing 8, the nut 5 is arranged below the bushing 8, the middle of the bushing 8 is of a hollow structure, and the threaded shaft 4.2 on the upper surface of the bottom plate 4 sequentially penetrates through the nut 5, the bushing 8 and the lifting nut 7. The nut 5 and the lifting nut 7 are clamped on both sides of the bush 8 by a screw connection and are screwed on the threaded shaft 4.2 of the base plate 4.
The bottom of the bottom plate 4 is provided with a connecting block 4.1. The connecting block 4.1 is a stud or a T-shaped block.
The double-connecting-rod 2 is connected with the pressing plate 1 through the first revolute pair 1.1, the bushing 8 is connected with the pressing plate 1 through the second revolute pair 1.2, and the pressing block 6 is connected with the pressing plate 1 through the third revolute pair 1.3. Specifically, pins are inserted into corresponding holes to assemble, so as to form a revolute pair.
The top of lifting nut 7 is provided with the nut, and lifting nut 7 bottom is provided with the external screw thread, and lifting nut 7 middle part is hollow structure, is provided with the internal thread among the hollow structure.
The nut 5 is matched with the external thread of the lifting nut 7 for use, and the external thread on the threaded shaft 4.2 is matched with the internal thread of the lifting nut 7 for use.
Two sides of the double connecting rod 2 are respectively provided with a connecting rod 3, and each connecting rod 3 is rotatably connected with the bottom plate 4.
The connecting shaft of the double connecting rods 2 and the connecting rods 3 is a prism shaft 2.1. Preferably, the prism axis 2.1 is a regular hexagonal prism.
Notches for connecting the connecting rods 3 or the double connecting rods 2 are arranged on the pressing plate 1 and the bottom plate 4, and when the connecting rods 3 and the double connecting rods 2 rotate to be vertical to the pressing plate 1 and the bottom plate 4 or exceed the vertical position, three side walls of the notches are in contact with the connecting rods 3 and the double connecting rods 2. Preferably, the link 3 and the double link 2 engage the three side walls of the slot when rotated 5 ° beyond the vertical position.
Referring to fig. 1 and 2, the lever type connecting rod self-locking clamp comprises a pressing plate 1, a double connecting rod 2, two connecting rods 3, a bottom plate 4, a nut 5, a pressing block 6, a lifting nut 7, a bushing 8 and a plurality of pins; the pressing plate 1, the double connecting rods 2, the two connecting rods 3, the bottom plate 4, the pressing block 6 and the bush 8 are inserted into corresponding holes by pins for assembly to form a revolute pair; the nut 5 and the lifting nut 7 are connected through threads, clamped on two sides of the bush 8 and connected on the threaded shaft 4.2 of the bottom plate 4 through threads, and assembly is completed. The lever type connecting rod self-locking clamp is fixed on a workbench or a universal tool through a connecting block 4.1 of the bottom plate 4. Screwing the lifting nut 7 can adjust the up-and-down displacement of the bush 8 along the threaded shaft 4.2, and further adjust the ascending and descending of the second revolute pair 1.2. The connecting shaft in the middle of the double connecting rod 2 is a prismatic shaft 2.1, the rotation of the double connecting rod 2 and the connecting rod 3 can be realized by screwing the prismatic shaft 2.1 by an adjustable wrench, and the first rotating pair 1.1 of the pressing plate is pushed to ascend or descend; at the moment, the second revolute pair 1.2 is taken as a fulcrum, the third revolute pair 1.3 can be displaced up and down through a lever, the pressing block 6 is driven to ascend or descend, and the workpiece is loosened and clamped. And (3) continuously screwing the prism shaft 2.1 until the connecting rod 3 and the double-connecting-rod 2 are perpendicular to the pressing plate 1 and the bottom plate 4 or slightly exceed the vertical positions, and three side walls of the notch are contacted with the connecting rod 3 and the double-connecting-rod 2 to prevent further rotation of the connecting rod 3 and the double-connecting-rod 2, so that self-locking of the whole clamp is realized.
Claims (8)
1. The utility model provides a lever connecting rod auto-lock anchor clamps which characterized in that: the pressing device comprises a pressing plate (1), wherein one end of the pressing plate (1) is rotatably connected with a double connecting rod (2), the double connecting rod (2) is connected with a connecting rod (3), the connecting rod (3) is connected with a bottom plate (4), the middle part of the pressing plate (1) is rotatably connected with a bush (8) which moves up and down, and the other end of the pressing plate (1) is rotatably connected with a pressing block (6); lifting nuts (7) are arranged above the bushings (8), nuts (5) are arranged below the bushings (8), the middle parts of the bushings (8) are of hollow structures, and threaded shafts (4.2) on the upper surfaces of the base plates (4) sequentially penetrate through the nuts (5), the bushings (8) and the lifting nuts (7).
2. A lever type connecting rod self-locking clamp as claimed in claim 1, wherein: the bottom of the bottom plate (4) is provided with a connecting block (4.1).
3. A lever type connecting rod self-locking clamp as claimed in claim 1, wherein: the double-connecting-rod (2) is connected with the pressing plate (1) through the first revolute pair (1.1), the bushing (8) is connected with the pressing plate (1) through the second revolute pair (1.2), and the pressing block (6) is connected with the pressing plate (1) through the third revolute pair (1.3).
4. A lever type connecting rod self-locking clamp as claimed in claim 1, wherein: the top of the lifting nut (7) is provided with a nut, the bottom of the lifting nut (7) is provided with an external thread, the middle of the lifting nut (7) is of a hollow structure, and an internal thread is arranged in the hollow structure.
5. A lever type connecting rod self-locking clamp as claimed in claim 4, wherein: the nut (5) is matched with the external thread of the lifting nut (7) for use, and the external thread on the threaded shaft (4.2) is matched with the internal thread of the lifting nut (7) for use.
6. A lever type connecting rod self-locking clamp as claimed in claim 1, wherein: two sides of the double connecting rods (2) are respectively provided with one connecting rod (3), and each connecting rod (3) is rotatably connected with the bottom plate (4).
7. A lever type connecting rod self-locking clamp as claimed in claim 6, wherein: the connecting shaft of the double connecting rods (2) and the connecting rods (3) is a prism shaft (2.1).
8. A lever type connecting rod self-locking clamp as claimed in claim 1, wherein: notches used for being connected with the connecting rods (3) or the double connecting rods (2) are arranged on the pressing plate (1) and the bottom plate (4), and when the connecting rods (3) and the double connecting rods (2) rotate to be perpendicular to the pressing plate (1) and the bottom plate (4) or exceed the perpendicular position, three side walls of the notches are in contact with the connecting rods (3) and the double connecting rods (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120926118.2U CN215616527U (en) | 2021-04-30 | 2021-04-30 | Lever type connecting rod self-locking clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120926118.2U CN215616527U (en) | 2021-04-30 | 2021-04-30 | Lever type connecting rod self-locking clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215616527U true CN215616527U (en) | 2022-01-25 |
Family
ID=79937227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120926118.2U Active CN215616527U (en) | 2021-04-30 | 2021-04-30 | Lever type connecting rod self-locking clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215616527U (en) |
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2021
- 2021-04-30 CN CN202120926118.2U patent/CN215616527U/en active Active
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