CN212735131U - Clamping device - Google Patents
Clamping device Download PDFInfo
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- CN212735131U CN212735131U CN202021037176.1U CN202021037176U CN212735131U CN 212735131 U CN212735131 U CN 212735131U CN 202021037176 U CN202021037176 U CN 202021037176U CN 212735131 U CN212735131 U CN 212735131U
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- locking
- block
- positioning plate
- air pressure
- positioning
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Abstract
The utility model discloses a clamping device, include: the device comprises a positioning plate, an air pressure locking module and a blind rivet; a gas channel is arranged in the positioning plate, and the positioning plate is communicated with the inflating device through a vent valve; the positioning plate is provided with a positioning hole, and the air pressure locking module is arranged in the positioning hole of the positioning plate; the blind rivet is inserted in the air pressure locking module; the air pressure locking module comprises a fixed block, a supporting block, a locking block and an elastic part, wherein the supporting block is connected below the fixed block, the supporting block is arranged in a positioning hole of the positioning plate, and the fixed block is arranged on the positioning plate; locking holes are formed in the fixed block and the supporting block, and the blind rivet is inserted into the locking holes; the locking block and the elastic piece are arranged in the supporting block, the locking block is located around the locking hole in an annular array mode, and the elastic piece is located around the locking block in an annular array mode. In this way, the utility model provides a high repeated positioning clamping precision installs and removes fast, has saved the clamping time, need not to rectify after every installation, reduces the debug time, raises the efficiency.
Description
Technical Field
The utility model relates to a machining technology field especially relates to a clamping device.
Background
In the machining process, clamping refers to an operation process of placing a workpiece on a machine tool or a clamp for positioning and clamping, wherein the positioning is to enable the workpiece to occupy a correct position, and the clamping is to enable the workpiece to keep the correct position. The positioning plays a critical role in clamping, and not only has direct influence on the processing quality, but also has great influence on the processing efficiency.
Aiming at the positioning of conventional products, the traditional clamping mode of cylindrical hole positioning generally adopts the modes of cylindrical pins, cylindrical mandrels, conical pins and the like for positioning, a locking screw or a pressing plate pressing device is used, and a positioning device and a clamping device are separately arranged and are distinguished for operation. The general clamping adopts a manual mode, and has higher requirement on operators. For products with low requirements on processing precision, the positioning mode is simple and the application is wide. However, on some high-precision products, because the traditional positioning mode is poor in repeated positioning precision, positioning and clamping are operated independently, the products need to be repeatedly debugged in the process of cutting, and the time for debugging and clamping is increased due to repeated clamping.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the main technical problem who solves provides a clamping device, can improve repeated positioning clamping precision, saves the clamping time.
In order to achieve the above object, the technical solution of the present invention is:
a clamping device, comprising: the device comprises a positioning plate, an air pressure locking module and a blind rivet;
a gas channel is arranged in the positioning plate, and the positioning plate is communicated with the inflating device through a vent valve; the positioning plate is provided with a positioning hole, and the air pressure locking module is arranged in the positioning hole of the positioning plate; the pull nails are inserted into the air pressure locking module;
the air pressure locking module comprises a fixed block, a supporting block, a locking block and an elastic piece, wherein the supporting block is connected below the fixed block, the supporting block is arranged in a positioning hole of the positioning plate, and the fixed block is arranged on the positioning plate; locking holes are formed in the fixed block and the supporting block, and the pull nails are inserted into the locking holes; the locking block and the elastic piece are arranged in the supporting block, the locking block is located around the locking hole in an annular array mode, the elastic piece is located around the locking block in an annular array mode, and the elastic piece is abutted to the locking block.
Preferably, a threaded hole is formed in the positioning plate, and the fixing block is connected with the positioning plate through a bolt.
Preferably, the positioning plate is symmetrically provided with mounting holes.
Preferably, the number of the air pressure locking modules is at least two.
Preferably, the number of the air pressure locking modules is three, and the air pressure locking modules are arranged in a triangular shape.
Preferably, the latch segment includes locking first end, locking second end and locking third end, locking first end and locking third end are connected through locking second end, the side of locking first end with the top surface of locking second end sets up perpendicularly, the contact surface of locking third end and blind rivet is the inclined plane.
Preferably, the air pressure locking module further comprises round balls, the round balls are arranged between the locking blocks and the pull nails, and the round balls are arranged in an annular array.
Preferably, the material of the ball is steel.
Because of above-mentioned technical scheme's application, compared with the prior art, the utility model has the following beneficial effect:
the clamping device improves repeated positioning and clamping precision, is quick to assemble and disassemble, saves clamping time, does not need to be corrected after each installation, reduces debugging time and improves efficiency.
Drawings
Fig. 1 is a schematic structural view of a clamping device of the present invention.
Fig. 2 is an exploded view of a clamping device of the present invention.
Fig. 3 is a top view of the clamping device of the present invention.
Fig. 4 is a cross-sectional view in the direction a-a of fig. 3.
Fig. 5 is a schematic structural view of the workpiece mounted on the clamping device of the present invention.
Fig. 6 is a schematic structural view of the clamping device of the present invention installed on a machine tool.
Description of reference numerals: the device comprises a positioning plate 1, an air pressure locking module 2, a fixing block 21, a supporting block 22, a locking block 23, an elastic piece 24, a ball 25, a rivet 3, a vent valve 4, a workpiece 5 and a machine tool 6.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.
Referring to the drawings, a clamping apparatus comprises: the device comprises a positioning plate 1, an air pressure locking module 2 and a blind rivet 3. The clamping device is connected with an external machine tool 6 through a positioning plate 1, mounting holes can be symmetrically formed in the positioning plate 1, and the clamping device is mounted on the external machine tool 6 through the mounting holes. The blind rivet 3 is locked on the workpiece 5 through the bolt and then connected to the air pressure locking module 2, so that the tool can be installed outside the machine, the precision and the repeated positioning precision are improved, the clamping time is reduced, and the utilization rate of a machine tool is improved.
The positioning plate 1 is internally provided with a gas channel which can be arranged in a circle in the positioning plate 1. The positioning plate 1 is communicated with an inflating device through a vent valve 4, and the clamping device is inflated through the inflating device from an air channel in the positioning plate 1.
The positioning plate 1 is provided with a positioning hole, and the air pressure locking module 2 is arranged in the positioning hole of the positioning plate 1. The blind rivet 3 is inserted into the air pressure locking module 2 to position and lock the workpiece 5, the blind rivet 3 is made of hardened stainless steel, the wear resistance is improved, the blind rivet is connected with the workpiece 5 through a bolt, and the blind rivet is connected and fastened with the air pressure locking module 2 as a whole.
The number of the air pressure locking modules 2 is the same as that of the positioning holes. The number of the air pressure locking modules 2 is at least two groups, and the number of the air pressure locking modules 2 can be preferably three groups, and the air pressure locking modules are arranged in a triangular shape, namely the three groups of the air pressure locking modules 2 are not on the same line. The positioning of the workpiece 5 can be more accurate through the arrangement of the triangle, and the positioning stability is improved.
The number of the blind rivets 3 is the same as the number of the air pressure locking modules 2. In order to avoid confusion of zero point, adjustment and clearance rivet 3 in the installation process, the diameters of the three rivets 3 are different. Because the blind rivet 3 needs to be repeatedly positioned and locked, the hardened stainless steel is selected as the material, so that the wear resistance, the seizure resistance, the corrosion resistance and the stability of the blind rivet can be improved.
The air pressure locking module 2 includes a fixing block 21, a supporting block 22, a locking block 23 and an elastic member 24. The fixed block 21 and the supporting block 22 can be arranged to be integrally formed, the supporting block 22 is connected below the fixed block 21, the supporting block 22 is arranged in a positioning hole of the positioning plate 1, the supporting block 22 is communicated with the positioning plate 1, and the fixed block 21 is arranged on the positioning plate 1. In order to facilitate the connection of the air pressure locking module 2 and the positioning plate 1, a threaded hole is formed in the positioning plate 1, and the fixing block 21 is connected with the positioning plate 1 through a bolt. The components in the pneumatic locking module are made of stainless steel materials, and can automatically reset after being hardened and loosened by large-diameter steel balls, so that the pneumatic locking module is more load-resistant, the repeated positioning precision can reach within 0.005mm,
locking holes are arranged in the fixing block 21 and the supporting block 22, and the blind rivet 3 is inserted in the locking holes. The locking block 23 and the elastic piece 24 are arranged in the supporting block 22, the locking block 23 is located around the locking hole in a circumferential array mode, the elastic piece 24 is located around the locking block 23 in a circumferential array mode, and the elastic piece 24 is abutted to the locking block 23. The elastic member 24 may be a disc spring. After the clamping device is filled with gas, the locking block 23 gradually draws close to the center of the locking hole under the action of the elastic piece 24, and the locking block 23 clamps the blind rivet 3, so that the workpiece 5 fixed on the blind rivet 3 is positioned and locked. The elastic piece 24 moves up and down through the on and off of the air of the vent valve 4 to push the round ball 25 to contact with the rivet 3, so that the positioning and the locking are realized.
The latch segment 23 is including locking first end, locking second end and locking third end, and locking first end and locking third end are through locking the second end and connect, and the side of locking first end sets up with the top surface of locking second end is perpendicular, locks the vertical setting of first end and locking third end promptly, and locking second end level sets up. The contact surface of the locking third end and the blind rivet 3 is an inclined surface, and under the action of the elastic piece 24, the inclined surface is arranged to be more favorable for the locking block 23 to lock the blind rivet 3.
In order to ensure that the rivet 3 can be locked more flexibly, the air pressure locking module 2 further comprises a round ball 25, and the round ball 25 can be made of steel. The round balls 25 are arranged between the locking block 23 and the rivet 3, the round balls 25 are arranged in an annular array, and the round balls 25 are positioned at the locking second end.
In the actual positioning process, the air pressure locking module 2 is positioned on the positioning plate 1 through the positioning pin and fixed on the positioning plate 1 through the screw. The rivet 3 is locked on the workpiece 5 through a bolt, then the vent valve 4 is opened, the workpiece 5 is quickly installed on the air pressure locking module 2, the vent valve 4 is closed, the elastic piece 24 is compressed, the three rivets 3 and the round balls 25 are matched, and the rivet can be quickly positioned and locked for processing. The clamping device can realize quick positioning and quick installation. The clamping time is saved, the repeated clamping precision is improved, the assembly and disassembly are quick, the alignment is not needed after each installation, the external pre-adjustment can be realized, and the utilization rate of the machine tool is improved.
In order to completely correct during insertion and extraction, the structure of the ball 25 is specially designed, so that the load distribution is uniform, the conical contact area of the rivet 3 can eliminate concentrated load and reduce faults, and meanwhile, the steel ball can freely move in the ball groove and reduce friction.
The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and all the same principles are included in the protection scope of the present invention.
Claims (8)
1. A clamping device, comprising: the device comprises a positioning plate, an air pressure locking module and a blind rivet;
a gas channel is arranged in the positioning plate, and the positioning plate is communicated with the inflating device through a vent valve; the positioning plate is provided with a positioning hole, and the air pressure locking module is arranged in the positioning hole of the positioning plate; the pull nails are inserted into the air pressure locking module;
the air pressure locking module comprises a fixed block, a supporting block, a locking block and an elastic piece, wherein the supporting block is connected below the fixed block, the supporting block is arranged in a positioning hole of the positioning plate, and the fixed block is arranged on the positioning plate; locking holes are formed in the fixed block and the supporting block, and the pull nails are inserted into the locking holes; the locking block and the elastic piece are arranged in the supporting block, the locking block is located around the locking hole in an annular array mode, the elastic piece is located around the locking block in an annular array mode, and the elastic piece is abutted to the locking block.
2. A clamping apparatus according to claim 1, wherein: the positioning plate is provided with a threaded hole, and the fixing block is connected with the positioning plate through a bolt.
3. A clamping apparatus according to claim 1, wherein: the positioning plate is symmetrically provided with mounting holes.
4. A clamping apparatus according to claim 1, wherein: the number of the air pressure locking modules is at least two groups.
5. A clamping apparatus according to claim 1, wherein: the number of the air pressure locking modules is three, and the air pressure locking modules are arranged in a triangular shape.
6. A clamping apparatus according to claim 1, wherein: the locking block comprises a locking first end, a locking second end and a locking third end, the locking first end and the locking third end are connected through the locking second end, the side face of the locking first end is perpendicular to the top face of the locking second end, and the contact face of the locking third end and the blind rivet is an inclined plane.
7. A clamping apparatus according to claim 1, wherein: the air pressure locking module further comprises round balls, the round balls are arranged between the locking blocks and the pull nails, and the round balls are arranged in an annular array.
8. A clamping apparatus according to claim 7, wherein: the material of the ball is steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021037176.1U CN212735131U (en) | 2020-06-08 | 2020-06-08 | Clamping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021037176.1U CN212735131U (en) | 2020-06-08 | 2020-06-08 | Clamping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212735131U true CN212735131U (en) | 2021-03-19 |
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ID=75007169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021037176.1U Active CN212735131U (en) | 2020-06-08 | 2020-06-08 | Clamping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212735131U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114043269A (en) * | 2021-11-30 | 2022-02-15 | 上海鑫隆烟草机械厂 | Flexible clamp system based on micro-deformation self-adaptive compensation positioning |
-
2020
- 2020-06-08 CN CN202021037176.1U patent/CN212735131U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114043269A (en) * | 2021-11-30 | 2022-02-15 | 上海鑫隆烟草机械厂 | Flexible clamp system based on micro-deformation self-adaptive compensation positioning |
| CN114043269B (en) * | 2021-11-30 | 2024-03-29 | 上海鑫隆烟草机械厂 | Flexible fixture system based on micro-deformation self-adaptive compensation positioning |
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