CN219665550U - Cam self-centering clamping mechanism - Google Patents
Cam self-centering clamping mechanism Download PDFInfo
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- CN219665550U CN219665550U CN202320911502.4U CN202320911502U CN219665550U CN 219665550 U CN219665550 U CN 219665550U CN 202320911502 U CN202320911502 U CN 202320911502U CN 219665550 U CN219665550 U CN 219665550U
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- clamping mechanism
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Abstract
The utility model relates to the field of positioning mechanisms, and particularly discloses a cam self-centering clamping mechanism which comprises a bottom plate, a clamping mechanism and a positioning mechanism, wherein the clamping mechanism comprises a supporting component and a clamping component, the clamping component comprises a double-sided eccentric cam, a spring and two positioning blocks, the double-sided eccentric cam and the positioning blocks are horizontally and rotatably connected to the supporting component, the two positioning blocks are symmetrically arranged along the vertical center plane of the bottom plate, one ends of the two positioning blocks, which are far away from the positioning mechanism, can be propped against the side wall of the double-sided eccentric cam, grooves are formed in the side walls of the positioning blocks, the spring is horizontally arranged, one end of the spring is fixedly arranged in the groove of one positioning block, and the other end of the spring is fixedly arranged in the groove of the other positioning block. According to the scheme, the double-sided eccentric cam rotates in different directions, so that the workpiece can be clamped and loosened, the time for workpiece positioning, clamping and workpiece disassembling in the machining process is greatly reduced, and the working efficiency can be greatly improved.
Description
Technical Field
The utility model relates to the technical field of positioning mechanisms, in particular to a cam self-centering clamping mechanism.
Background
In machining, a workpiece is subjected to cutting force, gravity or other external force, and if the workpiece is not clamped and fixed, the positioning of the workpiece machining cannot be ensured, so that the workpiece is displaced, and a cutter or a machine tool is damaged, even personal accidents are caused. Thus, the clamping mechanism is an essential component in the machining process.
However, in the prior art, a method of clamping by a pressing plate is adopted, so that uneven compression degree is easily caused, errors of the shape and the position of a workpiece are large, the quality of the workpiece is not easy to guarantee, and in addition, the workpiece positioning and clamping and the workpiece disassembling duration in the processing process affect the production efficiency and the yield of products.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a cam self-centering clamping mechanism, which solves the problems of long time for workpiece positioning and clamping and workpiece disassembling in the processing process and influence on production efficiency.
In order to achieve the above object, the basic scheme of the present utility model is as follows: the utility model provides a cam self-centering clamping mechanism, comprising a base plate, clamping mechanism and positioning mechanism, positioning mechanism and clamping mechanism are equal fixed mounting on the bottom plate, clamping mechanism includes supporting component and clamping component, supporting component sets up on the bottom plate, clamping component sets up on supporting component, clamping component includes two-sided eccentric cam, a spring and locating piece, two-sided eccentric cam and locating piece are all horizontal rotation to be connected on supporting component, the locating piece is two, two locating pieces set up along the vertical central plane symmetry of bottom plate, and two locating pieces keep away from positioning mechanism's one end all can offset with two-sided eccentric cam's lateral wall, all open flutedly on the lateral wall of locating piece, the spring level sets up, one end fixed mounting of spring is in the recess of one of them locating piece, the other end fixed mounting of spring is in the recess of another locating piece.
The technical principle of the utility model is as follows: the support assembly and the positioning mechanism are fixedly arranged on the floor, the double-sided eccentric cam and the positioning blocks are both rotationally connected to the support assembly, when a workpiece is required to be clamped by the positioning blocks, the side wall of the double-sided eccentric cam loses thrust to one end, close to the double-sided eccentric cam, of the two positioning blocks, at the moment, the springs gradually recover to the original length, under the action of the springs, one end, far away from the double-sided eccentric cam, of the two positioning blocks rotates in a direction far away from the other side, and meanwhile, one end, close to the double-sided eccentric cam, of the two positioning blocks continuously abuts against the side wall of the double-sided eccentric cam under the action of the springs, and a gap for placing the workpiece is formed between one ends, far away from the double-sided eccentric cam, of the two positioning blocks; the double-sided eccentric cams are rotated in opposite directions to form thrust for the two positioning blocks, so that one ends of the two positioning blocks, which are close to the double-sided eccentric cams, move towards a direction away from each other, and meanwhile, one ends of the two positioning blocks, which are far away from the double-sided eccentric cams, move towards each other, so that workpieces can be clamped.
Compared with the prior art, the utility model has the following beneficial effects: the double-sided eccentric cam is rotated in different directions, so that the workpiece can be clamped and loosened, the time for positioning, clamping and disassembling the workpiece in the machining process is greatly reduced, and the working efficiency can be greatly improved.
Further, a handle is fixedly arranged on the side wall of the side, far away from the positioning block, of the double-sided eccentric cam.
The beneficial effects are that: the handle can drive the double-sided eccentric cam to rotate more conveniently in a labor-saving way.
Further, the side wall of one side, far away from the double-sided eccentric cam, of the positioning block is provided with a first V-shaped groove which is vertically arranged.
The beneficial effects are that: the workpiece can be positioned through the first V-shaped groove, and the workpiece can be clamped conveniently.
Further, gaskets are fixedly arranged on the side walls of the first V-shaped grooves of the positioning blocks.
The beneficial effects are that: through the arrangement of the gaskets, the positioning blocks can be prevented from rigidly contacting with the workpiece, so that the possibility that the positioning blocks damage the surface of the workpiece can be reduced.
Further, through grooves which are horizontally arranged are formed in the side wall of the positioning block, which is close to one side of the double-sided eccentric cam, and pin touching pins which are horizontally arranged are fixedly arranged in the through grooves of the two positioning blocks and can be propped against the side wall of the double-sided eccentric cam.
The beneficial effects are that: the double-sided eccentric cam and the two positioning blocks can be prevented from sliding contact through the nail contact pin, the damage to the side walls of the two positioning blocks can be avoided, and therefore the service life of the device can be prolonged.
Further, the supporting component comprises a U-shaped positioning seat, cam pins and rotating pins, the U-shaped positioning seat is fixedly arranged on the bottom plate, the opening direction of the U-shaped positioning seat is in the horizontal direction, the cam pins and the rotating pins are vertically and fixedly arranged on the surface, far away from one side of the bottom plate, of the U-shaped fixing seat, the two rotating pins are symmetrically arranged along the vertical center plane of the bottom plate, the double-sided eccentric cam is coaxially sleeved on the cam pins, and the two positioning blocks are respectively connected to the two rotating pins in a rotating mode.
The beneficial effects are that: the double-sided eccentric cam and the positioning block can be supported by the U-shaped positioning seat, the double-sided eccentric cam can be rotationally connected to the U-shaped positioning seat by the cam pin, the positioning block can be rotationally connected to the supporting seat by the rotary pin, and the double-sided eccentric cam and the positioning block are installed by the pin, so that the connecting mode is simple and the installation is convenient.
Further, the side walls of the rotating pins far away from one end of the bottom plate are provided with annular grooves, and snap springs are coaxially arranged in the annular grooves of the two rotating pins.
The beneficial effects are that: the positioning block can be limited through the clamp spring in the annular groove, and the possibility that the positioning block falls off from the rotary pin when rotating can be avoided.
Further, the clamping mechanism comprises a mounting seat, the mounting seat is horizontally and fixedly arranged on the bottom plate, and a second V-shaped groove which is horizontally arranged is formed in the side wall of the mounting seat.
The beneficial effects are that: the workpiece can be positioned through the second V-shaped groove, so that the workpiece can be welded conveniently.
Further, the mounting seat is further fixedly provided with two limiting pins which are horizontally arranged, and the two limiting pins are symmetrically arranged along the vertical center plane of the mounting seat.
The beneficial effects are that: the workpiece can be limited through the limiting pin, so that the possibility of movement of the workpiece during welding can be reduced, and the stability of workpiece welding operation is improved.
Drawings
Fig. 1 is an isometric view of a cam self-centering clamping mechanism in accordance with an embodiment of the present utility model.
Fig. 2 is a top view of a cam self-centering clamping mechanism in accordance with an embodiment of the present utility model.
In the above figures: 1. a bottom plate; 2. a U-shaped positioning seat; 3. a cam pin; 4. a double-sided eccentric cam; 41. a through groove; 5. a touch pin; 6. a handle; 7. a positioning block; 71. a first V-groove; 8. a rotary pin; 81. an annular groove; 9. clamping springs; 10. a spring; 11. a mounting base; 111. a second V-groove; 12. and a limiting pin.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.
The embodiment of the utility model basically provides a cam self-centering clamping mechanism as shown in fig. 1-2, which comprises a bottom plate 1, a clamping mechanism and a positioning mechanism, wherein the positioning mechanism and the clamping mechanism are fixedly arranged on the bottom plate 1 through bolts, the clamping mechanism comprises a supporting component and a clamping component, the supporting component is arranged on the bottom plate 1, and the clamping component is arranged on the supporting component.
As shown in fig. 1 and 2, the clamping assembly comprises a double-sided eccentric cam 4, a spring 10 and a positioning block 7, wherein the double-sided eccentric cam 4 and the positioning block 7 are horizontally and rotatably connected to the supporting assembly, a handle 6 is welded on the side wall on the right side of the double-sided eccentric cam 4, the two positioning blocks 7 are symmetrically arranged along the vertical center plane of the bottom plate 1, a first V-shaped groove 71 which is vertically arranged is formed in the side wall on the left side of the positioning block 7, gaskets are glued on the side wall of the first V-shaped groove 71 of the positioning block 7, through grooves 41 which are horizontally arranged are formed in the side wall on the right side of the positioning block 7, contact pin 5 which is horizontally arranged are welded in the through grooves 41 of the two positioning blocks 7, the contact pin 5 can be propped against the side wall of the double-sided eccentric cam 4, grooves are formed in the side wall of the positioning block 7, the spring 10 is horizontally arranged, one end of the spring 10 is welded in the groove of one positioning block 7, and the other end of the spring 10 is welded in the groove of the other positioning block 7.
As shown in fig. 1, the support assembly comprises a U-shaped positioning seat 2, a cam pin 3 and a rotating pin 8,U type positioning seat 2, wherein the positioning seat 2 is fixedly mounted on a bottom plate 1 through bolts, the opening direction of the U-shaped positioning seat 2 is in a horizontal direction, the cam pin 3 and the rotating pin 8 are vertically welded on the surface of the upper side of the U-shaped positioning seat, the two rotating pins 8 are symmetrically arranged along the vertical center plane of the bottom plate 1, a double-sided eccentric cam 4 is coaxially sleeved on the cam pin 3, two positioning blocks 7 are respectively and rotatably connected to the two rotating pins 8, annular grooves 81 are formed in the side walls of the rotating pins 8 far away from one end of the bottom plate 1, and clamp springs 9 are coaxially arranged in the annular grooves 81 of the two rotating pins 8.
As shown in fig. 1, the clamping mechanism comprises a mounting seat 11, the mounting seat 11 is horizontally and fixedly mounted on the bottom plate 1 through bolts, a second V-shaped groove 111 is formed in the side wall of the mounting seat 11 and is horizontally arranged, two limiting pins 12 are welded on the mounting seat 11 and are symmetrically arranged along the vertical center plane of the mounting seat 11.
The detailed working procedure of this embodiment is:
1. when the workpieces need to be welded, one of the workpieces is placed in the second V-shaped groove 111 of the mounting seat 11, and the two limiting pins 12 can limit the workpiece, so that the possibility that the workpiece moves during welding can be reduced, and the stability of the welding work of the workpiece is improved.
2. The handle 6 rotates the double-sided eccentric cam 4 clockwise, the supporting capability of the side wall of the double-sided eccentric cam 4 to the nail contact pins 5 on the right ends of the two positioning blocks 7 is lost, the handle 6 can drive the double-sided eccentric cam 4 to rotate more conveniently, at the moment, the spring 10 gradually recovers to the two ends, the two positioning blocks 7 rotate on the rotary pin 8 under the action of the spring 10, the left ends of the two positioning blocks 7 rotate in the direction away from each other, meanwhile, the nail contact pins 5 on the right ends of the two positioning blocks 7 continuously abut against the side wall of the double-sided eccentric cam 4 under the action of the spring 10, the double-sided eccentric cam 4 and the two positioning blocks 7 can be prevented from being in sliding contact through the nail contact pins 5, the service life of the device can be prolonged, at the moment, a gap is formed between the right ends of the two positioning blocks 7, another workpiece is vertically placed in the gap, the positioning blocks 7 can be limited by the clamp springs 9 in the annular grooves 81, and the positioning blocks 7 can be prevented from falling off from the rotary pin 8 when the positioning blocks 7 rotate.
3. The handle 6 rotates the double-sided eccentric cam 4 anticlockwise, and thrust is formed on the nail contact pins 5 at the right ends of the two positioning blocks 7 simultaneously, so that the right ends of the two positioning blocks 7 move in a direction away from each other, meanwhile, the left ends of the two positioning blocks 7 move in opposite directions, another workpiece can be clamped in the first V-shaped groove 71, and gaskets in the first V-shaped groove 71 can prevent the positioning blocks 7 from rigidly contacting the workpiece, so that the possibility that the surfaces of the workpieces are damaged by the positioning blocks 7 can be reduced.
4. After the clamping is finished, welding work can be carried out on the two workpieces, and after the welding is finished, the workpieces can be taken out through loosening the workpieces in the first step. The double-sided eccentric cam 4 and the positioning block 7 are installed through the pin, so that the connecting mode is simple and the installation is convenient. The double-sided eccentric cam 4 can be rotated in different directions to clamp and loosen the workpiece, so that the time for positioning, clamping and disassembling the workpiece in the machining process is greatly reduced, and the working efficiency can be greatly improved. Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (9)
1. A cam self-centering clamping mechanism, characterized in that: including bottom plate, clamping mechanism and positioning mechanism, positioning mechanism and clamping mechanism all fixed mounting are on the bottom plate, clamping mechanism includes supporting component and clamping component, supporting component sets up on the bottom plate, clamping component sets up on supporting component, clamping component includes two-sided eccentric cam, spring and locating piece, and two-sided eccentric cam and the equal horizontal rotation of locating piece are connected on supporting component, the locating piece is two, and two locating pieces set up along the vertical central plane symmetry of bottom plate, and two locating pieces keep away from positioning mechanism's one end all can offset with two-sided eccentric cam's lateral wall, all open flutedly on the lateral wall of locating piece, the spring level sets up, the one end fixed mounting of spring is in the recess of one of them locating piece, the other end fixed mounting of spring is in the recess of another locating piece.
2. A cam self-centering clamping mechanism as defined in claim 1, wherein: the side wall of the double-sided eccentric cam, which is far away from one side of the positioning block, is fixedly provided with a handle.
3. A cam self-centering clamping mechanism as claimed in claim 2, wherein: the side wall of one side, far away from the double-sided eccentric cam, of the positioning block is provided with a first V-shaped groove which is vertically arranged.
4. A cam self-centering clamping mechanism as claimed in claim 3, wherein: and gaskets are fixedly arranged on the side walls of the first V-shaped grooves of the positioning blocks.
5. A cam self-centering clamping mechanism as defined in claim 4, wherein: the side walls of the positioning blocks, which are close to one side of the double-sided eccentric cam, are respectively provided with a horizontal through groove, the through grooves of the two positioning blocks are respectively fixedly provided with a horizontally arranged nail contact pin, and the nail contact pins can be propped against the side walls of the double-sided eccentric cam.
6. A cam self-centering clamping mechanism as defined in claim 5, wherein: the support assembly comprises a U-shaped positioning seat, cam pins and rotating pins, wherein the U-shaped positioning seat is fixedly arranged on a bottom plate, the opening direction of the U-shaped positioning seat is in a horizontal direction, the cam pins and the rotating pins are vertically and fixedly arranged on the surface of one side, far away from the bottom plate, of the U-shaped fixing seat, the two rotating pins are symmetrically arranged along the vertical center plane of the bottom plate, the two-sided eccentric cams are coaxially sleeved on the cam pins, and the two positioning blocks are respectively connected to the two rotating pins in a rotating mode.
7. A cam self-centering clamping mechanism as defined in claim 6, wherein: annular grooves are formed in the side walls, far away from one end of the bottom plate, of the rotating pins, and clamping springs are coaxially arranged in the annular grooves of the two rotating pins.
8. A cam self-centering clamping mechanism as defined in claim 7, wherein: the clamping mechanism comprises a mounting seat, the mounting seat is horizontally and fixedly arranged on the bottom plate, and a second V-shaped groove which is horizontally arranged is formed in the side wall of the mounting seat.
9. A cam self-centering clamping mechanism as defined in claim 8, wherein: and the mounting seat is also fixedly provided with two limiting pins which are horizontally arranged, and the two limiting pins are symmetrically arranged along the vertical central plane of the mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320911502.4U CN219665550U (en) | 2023-04-21 | 2023-04-21 | Cam self-centering clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320911502.4U CN219665550U (en) | 2023-04-21 | 2023-04-21 | Cam self-centering clamping mechanism |
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| Publication Number | Publication Date |
|---|---|
| CN219665550U true CN219665550U (en) | 2023-09-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320911502.4U Active CN219665550U (en) | 2023-04-21 | 2023-04-21 | Cam self-centering clamping mechanism |
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| CN (1) | CN219665550U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119347266A (en) * | 2024-11-01 | 2025-01-24 | 九江海天设备制造有限公司 | A thin-wall plate welding deformation control tool |
-
2023
- 2023-04-21 CN CN202320911502.4U patent/CN219665550U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119347266A (en) * | 2024-11-01 | 2025-01-24 | 九江海天设备制造有限公司 | A thin-wall plate welding deformation control tool |
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