CN211414458U - Workpiece clamping mechanism - Google Patents
Workpiece clamping mechanism Download PDFInfo
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- CN211414458U CN211414458U CN201922483483.6U CN201922483483U CN211414458U CN 211414458 U CN211414458 U CN 211414458U CN 201922483483 U CN201922483483 U CN 201922483483U CN 211414458 U CN211414458 U CN 211414458U
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- clamping
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Abstract
The utility model discloses a workpiece clamping mechanism, which comprises a workbench, a clamping mechanism and a driving mechanism; a plurality of guide holes are uniformly distributed on the periphery of the side wall of the mounting hole of the workpiece positioning seat in the circumferential direction; the clamping mechanism comprises a plurality of clamping assemblies which are arranged around the workpiece positioning seat in a surrounding mode and used for clamping a workpiece in a linkage mode, and one end of the ejector rod is extruded by the driving arm, so that the other end of the ejector rod is exposed out of the mounting hole; the driving mechanism is arranged below the workbench and used for driving the driving arms to synchronously turn around the corresponding pivot shafts, and then clamping of the workpiece is realized. With this structural design, when enclosing establish with work piece positioning seat a plurality of clamping component all around under the actuating mechanism effect linkage, can will install the work piece clamp tight in the work piece positioning seat mounting hole through the ejector pin that corresponds the setting, with this mode, the work piece location is reliable and stable, and work piece clamping mechanism simple structure, easily operation.
Description
Technical Field
The utility model relates to the technical field of machining, especially, relate to a work piece clamping machine constructs.
Background
When a workpiece is machined in the prior art, due to the lack of a necessary clamping mechanism, the workpiece cannot be stably and reliably positioned, so that the machining precision of the workpiece is greatly reduced, and the requirement for machining the workpiece cannot be effectively met.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a work piece clamping machine constructs, this work piece clamping machine constructs the clamping that can reliable and stable realization work piece, and simple structure, convenient and practical.
To achieve the purpose, the utility model adopts the following technical proposal:
a workpiece clamping mechanism comprising:
the workpiece positioning device comprises a workbench, wherein a workpiece positioning seat is arranged on the upper surface of the workbench, and a plurality of guide holes are uniformly distributed on the periphery of the side wall of a mounting hole of the workpiece positioning seat in the circumferential direction;
the clamping mechanism is used for clamping a workpiece in the workpiece positioning seat, the clamping mechanism comprises a plurality of clamping components which are arranged around the workpiece positioning seat and used for clamping the workpiece in a linkage manner, each clamping component comprises a pivoting seat arranged on the upper surface of the workbench, a driving arm penetrating through the workbench and pivoted with the pivoting seat, a guide seat arranged between the driving arm and the workpiece positioning seat and a push rod in sliding fit with the guide seat, and one end of the push rod is extruded by the driving arm, so that the other end of the push rod is exposed out of the mounting hole;
and the driving mechanism is arranged below the workbench and used for driving the driving arms to synchronously turn around the corresponding pivot shafts, so that the workpiece is clamped.
The driving mechanism comprises an air cylinder and a driving part fastened with a driving rod of the air cylinder, the driving part is provided with a conical surface or an inclined surface, and the lower ends of the driving arms are in sliding fit with the conical surface or the inclined surface of the driving part respectively.
The driving part is set to be a frustum, and the lower ends of the driving arms are arranged around the driving part and are in sliding connection with the conical surface of the driving part.
The workbench is embedded with a limiting pin, and the lower end of the limiting pin is abutted to the top surface of the driving piece.
The ejector rod comprises a rod body, a top cover arranged at one end of the rod body, a limiting plane arranged on the outer peripheral surface of the rod body, and a conical head arranged at the other end of the rod body.
The ejector rod sleeve is provided with a limiting block matched with the limiting plane, and the limiting block is arranged in the guide cavity of the guide seat.
The upper end of the driving arm is provided with a pin joint hole in a penetrating mode, and the upper end and the lower end of the driving arm are provided with driving portions respectively.
The top cover is exposed out of the guide seat and is abutted against the driving part at the upper end of the driving arm.
The hole wall of the guide hole is provided with a plane matched with the limiting plane.
Wherein, the axes of a plurality of ejector pins are positioned on the same plane.
The utility model has the advantages that: the utility model provides a workpiece clamping mechanism, which comprises a workbench, a clamping mechanism and a driving mechanism; a workpiece positioning seat is arranged on the upper surface of the workbench, and a plurality of guide holes are uniformly distributed on the periphery of the side wall of the mounting hole of the workpiece positioning seat in the circumferential direction; the clamping mechanism is used for clamping a workpiece in the workpiece positioning seat, the clamping mechanism comprises a plurality of clamping components which are arranged around the workpiece positioning seat and used for clamping the workpiece in a linkage manner, each clamping component comprises a pivoting seat arranged on the upper surface of the workbench, a driving arm penetrating through the workbench and pivoted with the pivoting seat, a guide seat arranged between the driving arm and the workpiece positioning seat and a push rod in sliding fit with the guide seat, and one end of the push rod is extruded by the driving arm, so that the other end of the push rod is exposed out of the mounting hole; the driving mechanism is arranged below the workbench and used for driving the driving arms to synchronously turn around the corresponding pivot shafts, and then clamping of the workpiece is realized. With this structural design, when enclosing establish with work piece positioning seat a plurality of clamping component all around under the actuating mechanism effect linkage, can will install the work piece clamp tight in the work piece positioning seat mounting hole through the ejector pin that corresponds the setting, with this mode, the work piece location is reliable and stable, and work piece clamping mechanism simple structure, easily operation.
Drawings
Figure 1 is the utility model discloses a first axle mapping of work piece clamping machine structure.
Figure 2 is a second isometric view of the workpiece fixture of figure 1.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is an axonometric view of the ejector rod and the limiting block in fig. 3 after being matched.
Figure 5 is an isometric view of the workpiece positioning socket of figure 3.
Figure 6 is an isometric view of the drive arm of figure 3.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
With reference to fig. 1 to 6, the present embodiment provides a workpiece clamping mechanism, which includes a workbench 1, a workpiece positioning seat 2 installed in the middle of the upper surface of the workbench 1, a plurality of clamping assemblies 3 circumferentially and uniformly distributed around the workpiece positioning seat 2, and a driving mechanism 4 disposed below the workbench 1 and configured to drive the plurality of clamping assemblies 3 to synchronously interlock and then clamp a workpiece in a mounting hole of the workpiece positioning seat 2; the plurality of clamping assemblies 3 form the clamping mechanism of the present embodiment when enclosed.
Specifically, the clamping assembly 3 in this embodiment includes a pivot seat 31 disposed on the upper surface of the workbench 1, a driving arm 32 penetrating through the workbench 1 and pivotally connected to the pivot seat 31, a guide seat 33 disposed between the driving arm 32 and the workpiece positioning seat 2, and a push rod 34 slidably engaged with the guide seat 33; furthermore, the push rod 34 in this embodiment includes a rod body 341, a top cover 342 disposed at one end of the rod body 341, a limit plane 343 disposed on the outer peripheral surface of the rod body 341, and a conical head 344 disposed at the other end of the rod body 341, in order to enable the conical head 344 of the push rod 34 to be exposed to the mounting hole 21 of the workpiece positioning seat 2 to clamp the workpiece, in this embodiment, a plurality of guide holes 22 are uniformly distributed around the side wall of the mounting hole 21 of the workpiece positioning seat 2, and in order to prevent the push rod 34 from rotating when applying a force to the workpiece, the hole wall of the guide hole 22 in this embodiment is provided with a plane 221 matched with the limit plane 343. In addition, in order to enable the conical head 344 exposed out of the mounting hole 21 to clamp the workpiece more stably, the axes of the plurality of carrier rods 34 are located in the same plane.
Furthermore, in order to limit the displacement of the push rod 34 and avoid damage caused by excessive stress on the workpiece, in this embodiment, a limit block 34a matched with the limit plane 343 is sleeved on the rod body 341 of the push rod 34, and the limit block 34a is installed in the guide cavity of the guide seat 33, so as to prevent the push rod 34 from damaging the workpiece by excessive force.
Furthermore, in the embodiment, the upper end of the driving arm 32 is provided with a pivot hole 321 in a penetrating manner, and then is pivoted with the corresponding pivot seat 31 through the pivot shaft, and the lower end of the driving arm 32 is disposed through the workbench 1 and exposed out of the lower bottom surface of the workbench 1, so that the driving mechanism 4 can apply force to the driving arm.
By adopting the above structural design, after the top cover 342 exposed on one side of the guide seat 33 is extruded by the driving part of the driving arm 32, the conical head 344 of the mandril 34 will be tightly pressed against the outer wall of the workpiece, and the workpiece can be clamped when the plurality of clamping components 3 are linked under the action of the driving mechanism 4.
Further, the driving mechanism 4 in this embodiment is disposed below the working table 1 and configured to drive the plurality of driving arms 32 to synchronously turn around the corresponding pivot shafts, so as to clamp the workpiece.
Specifically, the driving mechanism 4 includes an air cylinder 41 and a driving member 42 fastened to a driving rod of the air cylinder 41, the driving member 42 is provided with a conical surface or an inclined surface, and the lower ends of the plurality of driving arms 32 are respectively in sliding fit with the conical surface or the inclined surface of the driving member 42. Furthermore, the driving member 42 is configured as a frustum, and the lower ends of the driving arms 32 are arranged around the driving member 42 and slidably connected to the conical surface of the driving member 42. With the structural design, when the driving rod of the cylinder 41 drives the driving part 42 to move upwards, the lower end of the driving arm 32 is extruded by the conical surface, the other end of the driving arm 32 is driven to extrude the ejector rods 34, and then the conical heads 344 of the ejector rods 34 synchronously clamp the workpiece, so that the positioning of the workpiece is realized; conversely, when the driving member 42 moves downward, the workpiece can be taken and placed.
In order to limit the stroke of the driving member 42, in this embodiment, a limit pin 5 is embedded in the table 1, and the lower end of the limit pin 5 abuts against the top surface of the driving member 42, so as to effectively limit the stroke of the driving member 42 and avoid damage to the workpiece due to excessive force application.
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a work piece clamping machine constructs which characterized in that includes:
the workpiece positioning device comprises a workbench, wherein a workpiece positioning seat is arranged on the upper surface of the workbench, and a plurality of guide holes are uniformly distributed on the periphery of the side wall of a mounting hole of the workpiece positioning seat in the circumferential direction;
the clamping mechanism is used for clamping a workpiece in the workpiece positioning seat, the clamping mechanism comprises a plurality of clamping components which are arranged around the workpiece positioning seat and used for clamping the workpiece in a linkage manner, each clamping component comprises a pivoting seat arranged on the upper surface of the workbench, a driving arm penetrating through the workbench and pivoted with the pivoting seat, a guide seat arranged between the driving arm and the workpiece positioning seat and a push rod in sliding fit with the guide seat, and one end of the push rod is extruded by the driving arm, so that the other end of the push rod is exposed out of the mounting hole;
and the driving mechanism is arranged below the workbench and used for driving the driving arms to synchronously turn around the corresponding pivot shafts, so that the workpiece is clamped.
2. The workpiece clamping mechanism as claimed in claim 1, wherein the driving mechanism comprises a cylinder and a driving member fastened to a driving rod of the cylinder, the driving member is provided with a conical surface or an inclined surface, and the lower ends of the plurality of driving arms are respectively in sliding fit with the conical surface or the inclined surface of the driving member.
3. The workpiece clamping mechanism as recited in claim 2, wherein the driving member is configured as a frustum, and the lower ends of the plurality of driving arms are arranged around the driving member and slidably connected with the conical surface of the driving member.
4. The workpiece clamping mechanism as claimed in claim 3, wherein a limit pin is embedded in the workbench, and the lower end of the limit pin abuts against the top surface of the driving part.
5. The workpiece clamping mechanism according to claim 1, wherein the ejector rod comprises a rod body, a top cover arranged at one end of the rod body, a limiting plane arranged on the outer peripheral surface of the rod body, and a conical head arranged at the other end of the rod body.
6. The workpiece clamping mechanism according to claim 5, wherein the ejector rod sleeve is provided with a limiting block matched with the limiting plane, and the limiting block is arranged in a guide cavity of the guide seat.
7. The workpiece clamping mechanism as recited in claim 1, wherein the upper end of the driving arm is provided with a pivot hole, and the upper end and the lower end of the driving arm are respectively provided with a driving portion.
8. The workpiece clamping mechanism as recited in claim 5, wherein the top cover is exposed from the guide seat and abuts against the driving portion at the upper end of the driving arm.
9. The workpiece clamping mechanism as recited in claim 6, wherein the hole wall of the guide hole is provided with a plane matched with the limiting plane.
10. A workpiece clamping mechanism as claimed in claim 1 wherein the axes of the plurality of rams are in the same plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922483483.6U CN211414458U (en) | 2019-12-30 | 2019-12-30 | Workpiece clamping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922483483.6U CN211414458U (en) | 2019-12-30 | 2019-12-30 | Workpiece clamping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211414458U true CN211414458U (en) | 2020-09-04 |
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ID=72253552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922483483.6U Active CN211414458U (en) | 2019-12-30 | 2019-12-30 | Workpiece clamping mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN211414458U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948272A (en) * | 2019-12-30 | 2020-04-03 | 广州市新豪精密科技有限公司 | Workpiece clamping mechanism |
| CN112476370A (en) * | 2020-11-23 | 2021-03-12 | 温州市熙瑞机械科技有限公司 | Metal plate machining workbench |
-
2019
- 2019-12-30 CN CN201922483483.6U patent/CN211414458U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110948272A (en) * | 2019-12-30 | 2020-04-03 | 广州市新豪精密科技有限公司 | Workpiece clamping mechanism |
| CN112476370A (en) * | 2020-11-23 | 2021-03-12 | 温州市熙瑞机械科技有限公司 | Metal plate machining workbench |
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