CN220178758U - Clamping device in appearance location - Google Patents
Clamping device in appearance location Download PDFInfo
- Publication number
- CN220178758U CN220178758U CN202321532893.5U CN202321532893U CN220178758U CN 220178758 U CN220178758 U CN 220178758U CN 202321532893 U CN202321532893 U CN 202321532893U CN 220178758 U CN220178758 U CN 220178758U
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- positioning
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- expansion sleeve
- pull
- sleeve
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- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052782 aluminium Inorganic materials 0.000 abstract description 2
- 238000005266 casting Methods 0.000 abstract description 2
- 238000004512 die casting Methods 0.000 abstract description 2
- 238000004663 powder metallurgy Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Jigs For Machine Tools (AREA)
Abstract
The utility model relates to the technical field of positioning fixtures, and particularly discloses an external positioning internal clamping device, which comprises a positioning connecting device and a clamping transmission device, wherein the positioning connecting device and the clamping transmission device are arranged at the center position of the rear side of a circular workpiece; the positioning and connecting device comprises a positioning piece, a base and a flange, wherein the positioning piece is clamped with the workpiece, the positioning piece is connected with the base, and the base is connected with the flange; the clamping transmission device comprises a pull sleeve, an expansion sleeve, a pull rod, a connecting block and a connector, wherein the connecting block is connected with the connector, the expansion sleeve is clamped in the base, the pull sleeve is clamped at the end part of the expansion sleeve, and the pull rod penetrates from one end of the base and passes through the connecting block to be locked by a screw; the connector is connected with a hydraulic rod of the machine tool, and the flange plate is arranged on a main shaft of the machine tool; the utility model is suitable for aluminum die-casting forming parts, casting forming parts and powder metallurgy parts and is used for realizing positioning, clamping and fixing of products.
Description
Technical Field
The utility model relates to the technical field of positioning clamps, in particular to an appearance positioning inner clamping device.
Background
The precision product replacing processing is an important guarantee for driving the product to be transformed and upgraded, and a replacing processing factory is required to customize or manufacture equipment suitable for the processed product according to the requirements of the processed technical parameters according to the structural characteristics of the product, wherein an external positioning internal clamping device is indispensable.
The clamping and positioning device of the existing numerical control lathe and numerical control turning and milling compound machine tool generally adopts a unidirectional clamping mechanical structure. The clamping structure mode cannot be suitable for processing irregular structural components, so that further improvement and innovation on the structure of the existing clamping and positioning device are still needed to be suitable for processed products with different shapes and structures.
Disclosure of Invention
The utility model aims to provide an external positioning internal clamping device which is used for solving the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the external positioning internal clamping device comprises a positioning connecting device and a clamping transmission device, wherein the positioning connecting device and the clamping transmission device are arranged at the center position of the rear side of a round workpiece; the positioning and connecting device comprises a positioning piece, a base and a flange, wherein the positioning piece and the flange are connected with the base, and the positioning piece is clamped with the workpiece; the clamping transmission device comprises a pull sleeve, an expansion sleeve, a pull rod, a connecting block and a connector, wherein the connecting block is connected with the connector, the expansion sleeve is clamped in the base, the pull sleeve is clamped at the end part of the expansion sleeve, and the pull rod penetrates from one end of the base and passes through the connecting block to be locked by a screw; the connector is connected with a hydraulic rod of the machine tool, the flange plate is arranged on a main shaft of the machine tool, and the hydraulic rod of the machine tool is positioned on the inner side of the main shaft of the machine tool and concentric with the main shaft of the machine tool.
Preferably, the flange plate is arranged on the main shaft of the machine tool through an inner hexagon screw, and the base is clamped into the flange plate and is arranged on the flange plate through the screw; four groups of hexagon socket screws are arranged on the side face of the base in a circle in an equal division mode, and four groups of hexagon socket nuts are arranged in a matched mode; the locating piece is arranged at the front end position of the center of the base and is locked by a screw.
Preferably, the end part of the connector is connected with the bottom of the connecting block through a headless screw, and the expansion sleeve is positioned in a clamping groove at the center of the front end of the base and is locked through the screw; four groups of pull rods are equally arranged on one periphery of the side face of the base, and the whole pull rods are arranged between the pull sleeve and the connecting block.
Preferably, four arc-shaped bulges are arranged at one side of the positioning piece facing the workpiece in an equal division manner, and four arc-shaped grooves are correspondingly arranged on the workpiece to be clamped with the positioning piece.
Preferably, one end of the expansion sleeve, which faces the workpiece, is provided with an inclined plane with an inclined angle of degrees to one degree, the whole outer wall of the expansion sleeve is cut into six equally divided independent tooth-shaped structures, and an inclined plane structure which is mutually attached to the inclined plane of the end part of the expansion sleeve is arranged in the pull sleeve.
Compared with the prior art, the utility model has the beneficial effects that: the utility model mainly comprises two parts of devices, wherein the two parts of devices are respectively: positioning connection device, clamping transmission device; the two-part movement mechanism power source is transmitted by the machine tool body hydraulic system, the functions of initial positioning, clamping, compressing, interlocking and the like can be realized, the appearance design of the appearance positioning internal clamping device meets the centrifugal mechanical requirement, and the appearance positioning internal clamping device is applicable to aluminum die-casting forming parts, casting forming parts and powder metallurgy parts, is used for realizing positioning, clamping and fixing of products, has stable working state, has good practicability, and has outstanding substantive characteristics compared with the prior art.
Drawings
FIG. 1 is an exploded view of the present utility model;
FIG. 2 is a front view of the present utility model;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
reference numerals in the drawings: 1. a workpiece; 2. a positioning piece; 3. pulling the sleeve; 4. expanding sleeve; 5. a base; 6. a pull rod; 7. a connecting block; 8. a connector; 9. and a flange plate.
Description of the embodiments
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1-3, the present utility model provides a technical solution: the external positioning internal clamping device comprises a positioning connecting device and a clamping transmission device, wherein the positioning connecting device and the clamping transmission device are arranged at the center position of the rear side of a circular workpiece 1; the positioning and connecting device comprises a positioning piece 2, a base 5 and a flange 9, wherein the positioning piece 2 and the flange 9 are connected with the base 5, and the positioning piece 2 is clamped with the workpiece 1; the clamping transmission device comprises a pull sleeve 3, an expansion sleeve 4, a pull rod 6, a connecting block 7 and a connecting head 8, wherein the connecting block 7 is connected with the connecting head 8, the expansion sleeve 4 is clamped in a base 5, the pull sleeve 3 is clamped at the end part of the expansion sleeve 4, and the pull rod 6 penetrates from one end of the base 5 and passes through the connecting block 7 to be locked by a screw; the connector 8 is connected with a hydraulic rod of the machine tool, the flange 9 is arranged on a main shaft of the machine tool, and the hydraulic rod of the machine tool is positioned on the inner side of the main shaft of the machine tool and concentric with the main shaft of the machine tool.
Further, the flange 9 is mounted on a main shaft of the machine tool through an inner hexagon screw, and the base 5 is clamped into the flange 9 and is mounted on the flange 9 through the screw; four groups of hexagon socket screws are arranged on the side face of the base 5 in a circle in an equal division mode, and four groups of hexagon socket nuts are arranged in a matched mode; the locating piece 2 is arranged at the front end position of the center of the base 5 and is locked by a screw.
Furthermore, the end part of the connector 8 is connected with the bottom of the connecting block 7 through a headless screw, and the expansion sleeve 4 is positioned in a clamping groove at the center of the front end of the base 5 and is locked through the screw; four groups of pull rods 6 are equally arranged on one periphery of the side face of the base 5, and the whole pull rods 6 are arranged between the pull sleeve 3 and the connecting block 7.
Further, four arc-shaped protrusions are equally arranged on one side, facing the workpiece 1, of the positioning piece 2, and four arc-shaped grooves are correspondingly arranged on the workpiece 1 and are clamped with the positioning piece.
Furthermore, an inclined plane with an inclination angle of 25-35 degrees is arranged at one end of the expansion sleeve 4 facing the workpiece 1, the whole outer wall of the expansion sleeve 4 is cut into six equally divided independent tooth-shaped structures, and an inclined plane structure mutually attached to the inclined plane of the end part of the expansion sleeve 4 is arranged in the pull sleeve 3.
Working principle: the flange 9 is installed on the main shaft of the machine tool through socket head cap screws, the base 5 is clamped into the flange 9 and is installed on the flange 9 through screws, four groups of socket head cap screws are installed on one circle of the side face of the base 5 in an equal division mode, and four groups of hexagon nuts are installed in a matched mode, so that concentricity between the base 5 and the main shaft of the machine tool is adjusted conveniently. The positioning piece 2 is arranged at the front end position of the center of the base 5 and is locked by a screw. The connector 8 is connected with a hydraulic rod of the machine tool through threads at the bottom of the connector (the hydraulic rod is positioned on the inner side of a main shaft of the machine tool and concentric with the main shaft of the machine tool), and the front end of the connector 8 is connected with the bottom of the connecting block 7 through a headless screw. The expansion sleeve 4 is clamped into a central clamping groove at the front end of the base 5 and is locked by a screw, the pull sleeve 3 is clamped in from the front end of the expansion sleeve 4, four groups of pull rods 6 penetrate into 4 equally-divided through holes in the base 5 and are positioned between the pull sleeve 3 and the connecting block 7, and the pull rods 6 penetrate through the connecting block 7 and are locked by an inner hexagon screw, so that assembly is completed.
All parts of the external positioning internal clamping device are connected with each other to form a main body part of the whole external positioning internal clamping device. The device is an auxiliary device of a lathe production line, and a power source is hydraulic. The workpiece 1 is placed at the front end of the device, 4 arc-shaped bulges distributed on the positioning piece 2 are contacted with 4 arc-shaped grooves at the bottom of the workpiece 1, and plane positioning is completed. At the same time, the inner side walls of the 4 grooves of the workpiece 1 and the outer side walls of the 4 protrusions of the positioning piece 2 are overlapped to form the shape positioning. The protruding part of the bottom of the workpiece 1 penetrates into the inner side of the front end of the expansion sleeve 4, and a certain gap is reserved between the outer circle of the protruding part of the workpiece 1 and the inner circle of the expansion sleeve 4. Because the inner side circle of the front end of the pull sleeve 3 is provided with a 30-degree inclined plane which is overlapped with the outer side 30-degree inclined plane of the front end of the expansion sleeve 4, and the whole outer wall of the expansion sleeve 4 is cut into a 6-equal-divided independent tooth-shaped structure, the expansion sleeve has elasticity, when the hydraulic switch is started, the connector 8 drives the pull sleeve 3 to move backwards, and because the expansion sleeve 4 is in a static state relative to the pull sleeve 3, under the action of the inclination of the front end of the pull sleeve 3, the 6-equal-divided racks on the expansion sleeve 4 shrink inwards to clamp the protruding part of the bottom of the workpiece 1. And (5) finishing the clamping process. Closing the hydraulic switch, driving the pull sleeve 3 to return by the connector 8, resetting the rack of the expansion sleeve 4, and taking out the workpiece 1. Thus, a complete operation is completed.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. An appearance location internal clamping device which is characterized in that: the device comprises a positioning connection device and a clamping transmission device, wherein the positioning connection device and the clamping transmission device are arranged at the center position of the rear side of a round workpiece (1); the positioning and connecting device comprises a positioning piece (2), a base (5) and a flange plate (9), wherein the positioning piece (2) and the flange plate (9) are connected with the base (5), and the positioning piece (2) is clamped with the workpiece (1); the clamping transmission device comprises a pull sleeve (3), an expansion sleeve (4), a pull rod (6), a connecting block (7) and a connecting head (8), wherein the connecting block (7) is connected with the connecting head (8), the expansion sleeve (4) is clamped into the base (5), the pull sleeve (3) is clamped at the end part of the expansion sleeve (4), and the pull rod (6) penetrates from one end of the base (5) and penetrates through the connecting block (7) to be locked through a screw; the connector (8) is connected with a hydraulic rod of the machine tool, the flange plate (9) is arranged on a main shaft of the machine tool, and the hydraulic rod of the machine tool is positioned on the inner side of the main shaft of the machine tool and concentric with the main shaft of the machine tool.
2. An external form positioning internal clamping device as defined in claim 1, wherein: the flange plate (9) is arranged on a main shaft of the machine tool through an inner hexagon screw, and the base (5) is clamped into the flange plate (9) and is arranged on the flange plate (9) through the screw; four groups of hexagon socket screws are arranged on the side face of the base (5) in a circle in an equal division mode, and four groups of hexagon socket nuts are arranged in a matched mode; the locating piece (2) is arranged at the front end position of the center of the base (5) and is locked by screws.
3. An external form positioning internal clamping device as defined in claim 1, wherein: the end part of the connector (8) is connected with the bottom of the connecting block (7) through a headless screw, and the expansion sleeve (4) is positioned in a clamping groove at the center of the front end of the base (5) and is locked through the screw; four groups of pull rods (6) are equally arranged on one periphery of the side face of the base (5), and the pull rods (6) are integrally arranged between the pull sleeve (3) and the connecting block (7).
4. An external form positioning internal clamping device as defined in claim 1, wherein: four arc-shaped bulges are arranged on one side of the positioning piece (2) facing the workpiece (1) in an equal division manner, and four arc-shaped grooves are correspondingly arranged on the workpiece (1) and are clamped with the workpiece.
5. An external form positioning internal clamping device as defined in claim 1, wherein: one end of the expansion sleeve (4) facing the workpiece (1) is provided with an inclined plane with an inclined angle of 25-35 degrees, the whole outer wall of the expansion sleeve (4) is cut into six equally divided independent tooth-shaped structures, and an inclined plane structure which is mutually attached to the inclined plane of the end part of the expansion sleeve (4) is arranged in the pull sleeve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321532893.5U CN220178758U (en) | 2023-06-15 | 2023-06-15 | Clamping device in appearance location |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321532893.5U CN220178758U (en) | 2023-06-15 | 2023-06-15 | Clamping device in appearance location |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220178758U true CN220178758U (en) | 2023-12-15 |
Family
ID=89114341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321532893.5U Active CN220178758U (en) | 2023-06-15 | 2023-06-15 | Clamping device in appearance location |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220178758U (en) |
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2023
- 2023-06-15 CN CN202321532893.5U patent/CN220178758U/en active Active
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