CN111136291A - Outer double-layered tight composite power chuck of tight of internal stay - Google Patents
Outer double-layered tight composite power chuck of tight of internal stay Download PDFInfo
- Publication number
- CN111136291A CN111136291A CN202010047413.0A CN202010047413A CN111136291A CN 111136291 A CN111136291 A CN 111136291A CN 202010047413 A CN202010047413 A CN 202010047413A CN 111136291 A CN111136291 A CN 111136291A
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- centering
- chuck
- clamping
- pull rod
- clamp
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
- B23B31/02—Chucks
- B23B31/10—Chucks characterised by the retaining or gripping devices or their immediate operating means
- B23B31/12—Chucks with simultaneously-acting jaws, whether or not also individually adjustable
- B23B31/16—Chucks with simultaneously-acting jaws, whether or not also individually adjustable moving radially
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- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
Abstract
The invention provides an external-clamping and internal-supporting double-clamping composite power chuck, which comprises an external-clamping chuck, a base jaw, a top jaw, a centering chuck, a centering jaw, a flange plate, a clamping pull rod and a centering pull rod, the flange plate is connected with a main shaft of a machine tool, the outer clamping chuck is connected on the flange plate through a fixing bolt, a plurality of base jaws are circumferentially arranged on the outer clamping chuck, the base jaws are provided with top jaws, the clamping pull rod moves along the axial direction and drives the top jaws to radially expand or contract through the outer clamping chuck, the centering chuck is arranged at one end of the outer clamping chuck and is connected with the centering pull rod, a plurality of centering claws are arranged on the centering chuck, the centering pull rod moves along the axial direction of the centering pull rod and drives the centering clamping jaws to radially expand or contract through the centering chuck, and a clamping cavity for clamping a workpiece is formed between the outer walls of the centering clamping jaws and the inner walls of the top jaws. The chuck can effectively prevent the deformation of thin-wall parts, ensure the deformation of workpieces and effectively improve the product percent of pass.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of thin-wall cylinder part machining, in particular to an external-clamping and internal-supporting double-clamping composite power chuck.
[ background of the invention ]
In the existing machining technology of easily-deformed thin-wall parts such as missile shells, a three-jaw chuck is often used for clamping the edge of a workpiece for fixing, but in production, the clamping positioning of the three-jaw chuck cannot meet the clamping requirement due to special materials and strong cutting force, the assembly precision is not easy to guarantee, and further the machining precision of a thin-wall metal pipe product is influenced, so that the outer-clamping and inner-supporting double-clamping composite power chuck is provided.
[ summary of the invention ]
The invention aims to solve the problems in the prior art, and provides an external-clamping and internal-supporting double-clamping composite power chuck, which effectively prevents thin-wall parts from deforming, can ensure the deformation of workpieces, and effectively improves the product percent of pass.
In order to achieve the purpose, the invention provides an outer-clamping and inner-supporting double-clamping composite power chuck, which comprises an outer-clamping chuck, base jaws, a top jaw, a centering chuck, a centering jaw, a flange plate, a clamping pull rod and a centering pull rod, wherein the flange plate is connected with a machine tool main shaft and synchronously rotates with the machine tool main shaft, the outer-clamping chuck is connected to the flange plate through a fixing bolt, a plurality of base jaws are circumferentially arranged on the outer-clamping chuck, the top jaw is installed on the base jaw and is in press fit with the outer wall of a workpiece, the clamping pull rod is in linkage fit with the outer-clamping chuck and the top jaw, the clamping pull rod moves along the axial direction of the clamping pull rod and drives the top jaw to radially expand or contract through the outer-clamping chuck, the centering chuck is installed at one end of the outer-clamping chuck and is connected with the centering pull rod, the centering jaw is installed on the centering chuck, and is used for abutting against and matching with the inner wall of the, the centering pull rod is in linkage fit with the centering chuck and the centering jaws, the centering pull rod moves along the axial direction of the centering pull rod and drives the centering jaws to radially expand or contract through the centering chuck, and a clamping cavity for clamping a workpiece is formed between the outer wall of each centering jaw and the inner wall of each top jaw.
As preferred, still include the mount pad, the center department that presss from both sides the chuck outward has first installation cavity, mount pad fixed mounting is in the first installation cavity that presss from both sides the chuck outward, the centering chuck passes through the mount pad and connects on outer clamp chuck, have the first center cavity that supplies centering pull rod to wear out in the mount pad, install the sealing washer that closely cooperates with centering pull rod in the first center cavity.
As preferred, still install first locking dish in the outer chuck of pressing from both sides, press from both sides and be equipped with first uide bushing between tight pull rod and the first locking dish, first locking mechanism is installed to the inner circle of first locking dish, first locking mechanism supports with first uide bushing and leans on the cooperation, be equipped with the second uide bushing between centering chuck and the centering pull rod, second locking mechanism is installed to the tip of centering pull rod, second locking mechanism supports with the second uide bushing and leans on the cooperation, the card pearl that has the configuration spring on first locking mechanism, the second locking mechanism respectively.
Preferably, a positioning portion is arranged on the outer side of the centering clamping jaw, a first arc-shaped surface is arranged on the outer wall of the positioning portion, a second arc-shaped surface is arranged on the inner wall of the top jaw, a clamping cavity used for clamping a workpiece is formed between the first arc-shaped surface and the second arc-shaped surface, a plane notch is arranged in the middle of the first arc-shaped surface, an inner concave notch is arranged in the middle of the second arc-shaped surface of the top jaw, and the plane notch and the inner concave notch are arranged oppositely.
Preferably, the clamping pull rod is internally provided with an inner cavity for the centering pull rod to penetrate through, and the clamping pull rod and the centering pull rod are coaxially arranged.
Preferably, the centering chuck is provided with three centering jaws at equal intervals in the circumferential direction, a gap is reserved between every two adjacent centering jaws, the outer clamping chuck is provided with three base jaws at equal intervals in the circumferential direction, the three base jaws are respectively provided with three jacking jaws corresponding to the centering jaws one by one, and a gap is reserved between every two adjacent jacking jaws.
The invention has the beneficial effects that: according to the fixture, the outer clamping chuck, the base jaw, the top jaw, the centering chuck, the centering clamping jaw, the flange plate, the clamping pull rod, the centering pull rod and the like are matched, stable processing can be guaranteed under the condition of small stress through an inner support and outer clamping mode, so that the deformation of a workpiece is guaranteed, the product percent of pass is effectively improved, the fixture is particularly suitable for easily deformed thin-wall parts, and the deformation of the thin-wall parts can be avoided.
The features and advantages of the present invention will be described in detail by embodiments in conjunction with the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a schematic cross-sectional view of an outer clamp and inner support dual clamp compound power chuck of the present invention;
FIG. 2 is a schematic left side view of an external-clamp internal-support dual-clamp compound power chuck of the present invention.
[ detailed description ] embodiments
Referring to fig. 1 to 2, the invention relates to an outer-clamping inner-supporting double-clamping composite power chuck, which comprises an outer-clamping chuck 1, base jaws 2, a top jaw 3, a centering chuck 4, centering jaws 5, a flange plate 8, a clamping pull rod 9 and a centering pull rod 10, wherein the flange plate 8 is connected with a machine tool spindle and synchronously rotates with the machine tool spindle, the outer-clamping chuck 1 is connected with the flange plate 8 through a fixing bolt, a plurality of base jaws 2 are circumferentially arranged on the outer-clamping chuck 1, the top jaw 3 is arranged on the base jaw 2, the top jaw 3 is used for being in compression fit with the outer wall of a workpiece, the clamping pull rod 9 is in linkage fit with the outer-clamping chuck 1 and the top jaw 3, the clamping pull rod 9 axially moves and drives the top jaw 3 to radially expand or contract through the outer-clamping chuck 1, the centering chuck 4 is arranged at one end of the outer-clamping chuck 1 and is connected with the centering pull rod 10, the centering chuck 4 is provided with a plurality of centering jaws, the centering clamping jaw 5 is used for abutting against and matching with the inner wall of a workpiece, the centering pull rod 10 is in linkage fit with the centering chuck 4 and the centering clamping jaw 5, the centering pull rod 10 moves along the axial direction and drives the centering clamping jaw 5 to radially expand or contract through the centering chuck 4, and a clamping cavity for clamping the workpiece is formed between the outer wall of the centering clamping jaw 5 and the inner wall of the top jaw 3.
Further, still include mount pad 7, the center department of outer clamp chuck 1 has first installation cavity 11, mount pad 7 fixed mounting is in the first installation cavity 11 of outer clamp chuck 1, centering chuck 4 passes through mount pad 7 and connects on outer clamp chuck 1, have the first central cavity that supplies centering pull rod 10 to wear out in the mount pad 7, install the sealing washer 70 with centering pull rod 10 close fit in the first central cavity. The sealing ring is additionally arranged in the mounting seat 7, so that the fact that no scrap iron and other impurities inside the machining tool enter the machining tool can be guaranteed.
Further, still install first locking disc 13 in the outer chuck 1, it leans on the cooperation to press from both sides between tight pull rod 9 and the first locking disc 13 to be equipped with first uide bushing 91, first locking mechanism 12 is installed to the inner circle of first locking disc 13, first locking mechanism 12 offsets with first uide bushing 91, be equipped with second uide bushing 41 between centering chuck 4 and the centering pull rod 10, second locking mechanism 101 is installed to the tip of centering pull rod 10, second locking mechanism 101 offsets with second uide bushing 41 and leans on the cooperation, the card pearl that has the set spring on first locking mechanism 12, the second locking mechanism 41 respectively. The anti-loosening mechanism can ensure the use stability of the inner support centering chuck 4 and the outer clamping chuck 1.
Further, the outside of centering jack catch 5 is equipped with location portion 6, the outer wall of location portion 6 has first arcwall face, the inner wall of top claw 3 has the second arcwall face, form the card chamber that is used for clamping the work piece between first arcwall face, the second arcwall face, the intermediate position of first arcwall face is equipped with plane breach 61, the intermediate position of top claw 3 second arcwall face is equipped with indent breach 31, plane breach 61 sets up with indent breach 31 relatively. The plane notch 61 and the concave notch 31 are arranged to facilitate blanking.
Further, the inside that presss from both sides tight pull rod 9 has the inner chamber that supplies centering pull rod 10 to wear out, press from both sides tight pull rod 9 and the coaxial setting of centering pull rod 10, the equidistant three centering jack catch 5 that is provided with of circumference on the centering chuck 4 has the clearance between two adjacent centering jack catches 5, the equidistant three base jaw 2 that is provided with of circumference on the outer chuck 1, be provided with the top claw 3 of three and centering jack catch 5 one-to-one on the three base jaw 2 respectively, have the clearance between two adjacent top claws 3.
The working principle of the invention is as follows:
the flange plate 8 is connected with a machine tool main shaft and can synchronously rotate with the machine tool main shaft, the outer clamping chuck 1 is connected to the flange plate 8 through a fixing bolt, and the centering chuck 4 is connected to the outer clamping chuck 1 through the mounting seat 7.
The motion process is as follows:
the workpiece 100 is placed on the positioning part 6, the centering pull rod 10 moves rightwards, and the centering chuck 4 is converted into a centering claw 5 to move the inner supporting workpiece 100 outwards to ensure the centering of the workpiece.
The leftward movement of the outer clamping pull rod 9 is converted into the inward movement of the top jaw 3 through the outer clamping chuck 1 to clamp the workpiece 100, so that the workpiece processing stability is ensured.
The outer clamping chuck and the centering chuck are the same in action principle and all adopt wedge block structures for motion conversion. The axial movement of the centering pull rod 10 is converted into the radial movement of the clamping jaws 5, and the axial movement of the outer clamping pull rod 9 is converted into the radial movement of the top jaws 3.
The chuck has the advantages that: for the easily deformable thin-wall parts, the clamp can be stably processed under the condition of smaller stress through an internal support and external clamping mode, so that the deformation of the workpiece is ensured, and the qualification rate of the product is effectively improved.
The above embodiments are illustrative of the present invention, and are not intended to limit the present invention, and any simple modifications of the present invention are within the scope of the present invention.
Claims (6)
1. The utility model provides an outer double-layered tight composite power chuck of internal stay, its characterized in that: comprises an outer clamping chuck (1), a base jaw (2), a top jaw (3), a centering chuck (4), a centering jaw (5), a flange plate (8), a clamping pull rod (9) and a centering pull rod (10), wherein the flange plate (8) is connected with a machine tool main shaft, the outer clamping chuck (1) is connected to the flange plate (8) through a fixing bolt, a plurality of base jaws (2) are circumferentially arranged on the outer clamping chuck (1), the top jaw (3) is arranged on the base jaw (2), the top jaw (3) is used for being in compression fit with the outer wall of a workpiece (100), the clamping pull rod (9) is in linkage fit with the outer clamping chuck (1) and the top jaw (3), the clamping pull rod (9) is driven to radially expand or contract through the outer clamping chuck (1) along the axial movement of the clamping pull rod (9), the centering chuck (4) is arranged at one end of the outer clamping chuck (1) and is connected with the centering pull rod (10), install a plurality of centering jack catch (5) on centering chuck (4), centering jack catch (5) are used for leaning on the cooperation with the inner wall counterbalance of work piece (100), centering pull rod (10) and centering chuck (4), centering jack catch (5) linkage cooperation, and radial expansion or shrink of centering jack catch (5) are driven through centering chuck (4) along its axial displacement centering pull rod (10), form the card chamber that is used for clamping the work piece between the outer wall of centering jack catch (5) and the inner wall of jack catch (3).
2. The external-clamp internal-support dual-clamp compound power chuck as claimed in claim 1, wherein: still include mount pad (7), the center department that presss from both sides chuck (1) outward has first installation cavity (11), mount pad (7) fixed mounting is in the first installation cavity (11) that presss from both sides chuck (1) outward, centering chuck (4) are connected on outer chuck (1) through mount pad (7), have the first central cavity that supplies centering pull rod (10) to wear out in mount pad (7), install in the first central cavity with centering pull rod (10) closely complex sealing washer (70).
3. The external-clamp internal-support dual-clamp compound power chuck as claimed in claim 1, wherein: still install first locking dish (13) in outer clamp chuck (1), be equipped with first uide bushing (91) between tight pull rod (9) of clamp and first locking dish (13), first locking mechanism (12) are installed to the inner circle of first locking dish (13), first locking mechanism (12) and first uide bushing (91) offset lean on the cooperation, be equipped with second uide bushing (41) between centering chuck (4) and centering pull rod (10), second locking mechanism (101) are installed to the tip of centering pull rod (10), second locking mechanism (101) and second uide bushing (41) offset lean on the cooperation, the card pearl that sets the spring has on first locking mechanism (12), the second locking mechanism (41) respectively.
4. The external-clamp internal-support dual-clamp compound power chuck as claimed in claim 1, wherein: the outside of centering jack catch (5) is equipped with location portion (6), the outer wall of location portion (6) has first arcwall face, the inner wall of top claw (3) has the second arcwall face, form the card chamber that is used for clamping the work piece between first arcwall face, the second arcwall face, the intermediate position of first arcwall face is equipped with plane breach (61), the intermediate position of top claw (3) second arcwall face is equipped with indent breach (31), plane breach (61) set up with indent breach (31) relatively.
5. The external-clamp internal-support dual-clamp compound power chuck as claimed in claim 1, wherein: the clamping pull rod (9) is internally provided with an inner cavity for the centering pull rod (10) to penetrate out, and the clamping pull rod (9) and the centering pull rod (10) are coaxially arranged.
6. The external-clamp internal-support dual-clamp compound power chuck as claimed in claim 1, wherein: the centering chuck (4) are provided with three centering claws (5) at equal intervals in the circumferential direction, gaps are reserved between every two adjacent centering claws (5), the outer chuck (1) is provided with three base claws (2) at equal intervals in the circumferential direction, the three base claws (2) are provided with three top claws (3) corresponding to the centering claws (5) one by one, and gaps are reserved between every two adjacent top claws (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047413.0A CN111136291A (en) | 2020-01-16 | 2020-01-16 | Outer double-layered tight composite power chuck of tight of internal stay |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010047413.0A CN111136291A (en) | 2020-01-16 | 2020-01-16 | Outer double-layered tight composite power chuck of tight of internal stay |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111136291A true CN111136291A (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010047413.0A Pending CN111136291A (en) | 2020-01-16 | 2020-01-16 | Outer double-layered tight composite power chuck of tight of internal stay |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111136291A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940772A (en) * | 2020-07-01 | 2020-11-17 | 中国第一汽车股份有限公司 | Clamping device for thin-wall part machining |
| CN111993275A (en) * | 2020-08-26 | 2020-11-27 | 上海远葆工业设计有限公司 | Processing equipment for shaft parts |
| CN113385970A (en) * | 2021-06-11 | 2021-09-14 | 广西汽车集团有限公司 | Centering clamping tool |
| CN114472948A (en) * | 2022-01-24 | 2022-05-13 | 呼和浩特众环工贸股份有限公司 | Chuck capable of realizing high concentricity by multiple combinations |
| CN115369832A (en) * | 2022-08-02 | 2022-11-22 | 国家电网有限公司 | Lifting system of hydropower station maintenance gate |
| CN116689795A (en) * | 2023-07-28 | 2023-09-05 | 泰州俊宇不锈钢材料有限公司 | Turning lathe for stainless steel product production |
-
2020
- 2020-01-16 CN CN202010047413.0A patent/CN111136291A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111940772A (en) * | 2020-07-01 | 2020-11-17 | 中国第一汽车股份有限公司 | Clamping device for thin-wall part machining |
| CN111993275A (en) * | 2020-08-26 | 2020-11-27 | 上海远葆工业设计有限公司 | Processing equipment for shaft parts |
| CN111993275B (en) * | 2020-08-26 | 2021-10-15 | 合肥铣钺兴机械有限公司 | Processing equipment for shaft parts |
| CN113385970A (en) * | 2021-06-11 | 2021-09-14 | 广西汽车集团有限公司 | Centering clamping tool |
| CN114472948A (en) * | 2022-01-24 | 2022-05-13 | 呼和浩特众环工贸股份有限公司 | Chuck capable of realizing high concentricity by multiple combinations |
| CN114472948B (en) * | 2022-01-24 | 2023-08-22 | 呼和浩特众环工贸股份有限公司 | Chuck capable of achieving high concentricity through various combinations |
| CN115369832A (en) * | 2022-08-02 | 2022-11-22 | 国家电网有限公司 | Lifting system of hydropower station maintenance gate |
| CN115369832B (en) * | 2022-08-02 | 2023-09-26 | 国家电网有限公司 | Lifting system for hydropower station overhaul gate |
| CN116689795A (en) * | 2023-07-28 | 2023-09-05 | 泰州俊宇不锈钢材料有限公司 | Turning lathe for stainless steel product production |
| CN116689795B (en) * | 2023-07-28 | 2023-11-14 | 泰州俊宇不锈钢材料有限公司 | Turning lathe for stainless steel product production |
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