CN110935900A - Clamping device for turning outer diameter of thin-wall cylinder part - Google Patents
Clamping device for turning outer diameter of thin-wall cylinder part Download PDFInfo
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- CN110935900A CN110935900A CN202010041677.5A CN202010041677A CN110935900A CN 110935900 A CN110935900 A CN 110935900A CN 202010041677 A CN202010041677 A CN 202010041677A CN 110935900 A CN110935900 A CN 110935900A
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- thin
- outer diameter
- clamping
- turning
- clamping device
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- 230000007704 transition Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
-
- 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
- B23B31/103—Retention by pivotal elements, e.g. catches, pawls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gripping On Spindles (AREA)
Abstract
The invention discloses a clamping device for turning the outer diameter of a thin-wall cylinder, which comprises a plurality of clamping blocks and a positioning body, wherein the clamping blocks are uniformly distributed along the circumference; the positioning body is connected with the tailstock of the machine tool; the longitudinal section of the clamping block is in a convex shape, and a notch is formed on the side wall of the convex part, which is contacted with the workpiece; the positioning body is a stepped shaft structure consisting of a connecting part, a pressing part and an extending part which are connected in sequence. The invention ensures that the part is completely fixed in the axial direction and uniformly stressed and fixed in the radial direction, ensures the smooth clamping of the part, prevents the clamping deformation due to uniform clamping force, finally completes the outer diameter turning of the thin-wall cylinder part, and simultaneously can be conveniently assembled and disassembled, ensures the processing precision of the part and meets the design requirement.
Description
Technical Field
The invention belongs to the field of turning auxiliary devices, and particularly relates to a clamping device for turning the outer diameter of a thin-wall cylinder.
Background
The turning processing of the outer diameter of the thin-wall cylinder part is to carry out the turning processing on the outer diameter of the cylinder wall with the thickness of about 5mm, the precision requirement is very high, and the roundness of the outer diameter is less than or equal to 0.05 mm; and the inner hole is provided with a multi-head spiral groove, so that the inner hole cannot be directly clamped by using a jaw of a numerical control lathe.
Disclosure of Invention
The invention is provided to overcome the defects in the prior art, and aims to provide a clamping device for turning the outer diameter of a thin-wall cylinder.
The invention is realized by the following technical scheme:
a clamping device for turning the outer diameter of a thin-wall cylinder comprises a plurality of clamping blocks and a positioning body, wherein the clamping blocks are uniformly distributed along the circumference, and the clamping blocks are connected with a connecting block on a machine tool chuck through screws; the positioning body is connected with the tailstock of the machine tool;
the longitudinal section of the clamping block is in a convex shape, and a notch is formed on the side wall of the convex part, which is contacted with the workpiece;
the positioning body is a stepped shaft structure consisting of a connecting part, a pressing part and an extending part which are connected in sequence.
In the technical scheme, the number of the clamping blocks is three, and the clamping blocks are uniformly distributed at intervals of 120 degrees.
In the technical scheme, the end face, facing the chuck of the machine tool, of the clamping block is provided with a groove matched with the connecting block.
In the above technical solution, two through holes for accommodating screws are formed on the clamping block.
In the technical scheme, the side wall of the notch is an arc surface and is matched with the radian of the opening part in the left end of the workpiece.
In the technical scheme, one end of the positioning body, which is connected with the tailstock of the machine tool, is a connecting part.
In the technical scheme, the outer diameter of the pressing part is matched with the aperture of the inner hole at the right end of the workpiece.
In the technical scheme, a circular truncated cone-shaped transition part is arranged between the pressing part and the extending part.
In the technical scheme, the transition part is gradually reduced in diameter from the positioning body to the workpiece.
The invention has the beneficial effects that:
the invention provides a clamping device suitable for turning a thin-wall cylinder on a numerical control lathe, which ensures that a part is completely fixed in the axial direction and uniformly stressed and fixed in the radial direction, ensures smooth clamping of the part, prevents clamping deformation due to uniform clamping force, finally completes the turning of the outer diameter of the thin-wall cylinder, and meanwhile, is convenient to assemble and disassemble, ensures the processing precision of the part and meets the design requirement.
Drawings
FIG. 1 is a cross-sectional view of the clamping device for turning the outer diameter of a thin-walled cylinder according to the present invention;
fig. 2 is a schematic view of the assembly structure of three clamping blocks in the clamping device for turning the outer diameter of the thin-wall cylinder part.
Wherein:
1 clamping block 2 positioning body
3 screw 4 workpiece
21 boss portion 22 is notched.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the technical solutions of the clamping device for turning the outer diameter of a thin-walled cylinder according to the present invention will be further described below by referring to the drawings of the specification and the specific embodiments.
Example 1
As shown in fig. 1 and 2, the clamping device for turning the outer diameter of the thin-wall cylinder comprises a plurality of clamping blocks 1 and a positioning body 2 which are uniformly distributed along the circumference, wherein the clamping blocks 1 are connected with a connecting block on a machine tool chuck through screws 3; the positioning body 2 is connected with a tailstock of a machine tool.
The left end of the workpiece 4 is clamped through the movement of a chuck of the machine tool, so that the radial fixation is realized; the right end of the workpiece 4 is clamped through the movement of the tailstock of the machine tool, the workpiece is completely fixed in the axial direction, and the workpiece is clamped by matching of the two parts.
The longitudinal section of the clamping block 1 is in a convex shape, and a gap 22 is formed on the side wall of the convex part 21, which is contacted with the workpiece 4; the side wall of the notch 22 is an arc surface and is matched with the radian of the inner orifice part at the left end of the workpiece, and the workpiece 4 needs to be clamped after the boss part 21 of the clamping block 1 is turned. The end face, facing the chuck of the machine tool, of the clamping block 1 is provided with a groove matched with the connecting block. The clamping block 1 is formed with two through holes for receiving screws 3.
In this embodiment, the number of the clamping blocks 1 is three, and the clamping blocks are uniformly distributed at intervals of 120 °.
The positioning body 2 is a stepped shaft structure consisting of a connecting part, a pressing part and an extending part which are connected in sequence. And one end of the positioning body 2 connected with the tailstock of the machine tool is a connecting part. The outer diameter of the pressing part is matched with the aperture of the inner hole at the right end of the workpiece 4. And a circular truncated cone type transition part is arranged between the pressing part and the stretching part. The transition part is gradually reduced in diameter from the positioning body 2 to the workpiece 4.
The use method of the invention comprises the following steps:
the clamping process comprises the following steps: the clamping device is in a relaxed state, a workpiece is placed into the clamping device, the hydraulic pressure of the spindle is controlled by a foot pedal of a machine tool, a chuck of the machine tool contracts inwards to drive clamping blocks which are uniformly distributed at 120 degrees to contract inwards, and the left end of the workpiece is clamped; the right end of the workpiece is arranged in the positioning body, and the tailstock of the machine tool is controlled to move towards the direction of the main shaft, so that the right end of the workpiece is clamped.
And (3) a relaxation process: after the workpiece is machined, controlling the tailstock of the machine tool to move towards the direction away from the main shaft, and detaching the positioning body; the hydraulic pressure of the spindle is controlled by a foot pedal of the machine tool, a chuck of the machine tool expands outwards to drive clamping blocks which are uniformly distributed for 120 degrees to expand outwards, a workpiece is separated from the clamping device, and the workpiece is taken out.
The invention provides a clamping device suitable for turning a thin-wall cylinder on a numerical control lathe, which ensures that a part is completely fixed in the axial direction and uniformly stressed and fixed in the radial direction, ensures smooth clamping of the part, prevents clamping deformation due to uniform clamping force, finally completes the turning of the outer diameter of the thin-wall cylinder, and meanwhile, is convenient to assemble and disassemble, ensures the processing precision of the part and meets the design requirement.
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The applicant declares that the above description is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are within the scope and disclosure of the present invention.
Claims (9)
1. The utility model provides a clamping device for turning of thin wall barrel spare external diameter which characterized in that: the clamping device comprises a plurality of clamping blocks (1) and a positioning body (2) which are uniformly distributed along the circumference, wherein the clamping blocks (1) are connected with a connecting block on a machine tool chuck through screws (3); the positioning body (2) is connected with a tailstock of a machine tool;
the longitudinal section of the clamping block (1) is in a convex shape, and a notch (22) is formed on the side wall of the boss part (21) which is contacted with the workpiece (4);
the positioning body (2) is a stepped shaft structure consisting of a connecting part, a pressing part and an extending part which are sequentially connected.
2. The clamping device for turning the outer diameter of the thin-walled cylinder part according to claim 1, wherein: the number of the clamping blocks (1) is three, and the clamping blocks are uniformly distributed at intervals of 120 degrees.
3. The clamping device for turning the outer diameter of the thin-walled cylinder part according to claim 1, wherein: the end face, facing the chuck of the machine tool, of the clamping block (1) is provided with a groove matched with the connecting block.
4. The clamping device for turning the outer diameter of the thin-walled cylinder part according to claim 1, wherein: two through holes for accommodating screws (3) are formed on the clamping block (1).
5. The clamping device for turning the outer diameter of the thin-walled cylinder part according to claim 1, wherein: the side wall of the opening (22) is an arc surface and is matched with the radian of the opening part of the inner hole at the left end of the workpiece.
6. The clamping device for turning the outer diameter of the thin-walled cylinder part according to claim 1, wherein: and one end of the positioning body (2) connected with the tailstock of the machine tool is a connecting part.
7. The clamping device for turning the outer diameter of the thin-walled cylinder part according to claim 1, wherein: the outer diameter of the pressing part is matched with the aperture of the inner hole at the right end of the workpiece (4).
8. The clamping device for turning the outer diameter of the thin-walled cylinder part according to claim 1, wherein: and a circular truncated cone type transition part is arranged between the pressing part and the stretching part.
9. The clamping device for turning the outer diameter of the thin-walled cylinder part according to claim 1, wherein: the transition part is gradually reduced in diameter from the positioning body (2) to the workpiece (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041677.5A CN110935900A (en) | 2020-01-15 | 2020-01-15 | Clamping device for turning outer diameter of thin-wall cylinder part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010041677.5A CN110935900A (en) | 2020-01-15 | 2020-01-15 | Clamping device for turning outer diameter of thin-wall cylinder part |
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| Publication Number | Publication Date |
|---|---|
| CN110935900A true CN110935900A (en) | 2020-03-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010041677.5A Pending CN110935900A (en) | 2020-01-15 | 2020-01-15 | Clamping device for turning outer diameter of thin-wall cylinder part |
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| CN (1) | CN110935900A (en) |
Citations (14)
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| CN200954555Y (en) * | 2005-11-24 | 2007-10-03 | 天津天铁冶金集团有限公司 | Elastic internal supporting dabber |
| JP2008213080A (en) * | 2007-03-02 | 2008-09-18 | Denso Corp | Thin-walled cylinder retaining tool and machining method for thin-walled cylinder |
| CN104001951A (en) * | 2014-05-04 | 2014-08-27 | 洛阳维斯格轴承有限公司 | Clamp device for uniform-section ultra-thin-wall bearing ring outer surface turning |
| DE202013104143U1 (en) * | 2013-09-11 | 2014-12-12 | Schunk Gmbh & Co. Kg Spann- Und Greiftechnik | Power Chucks |
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| CN205270907U (en) * | 2015-12-08 | 2016-06-01 | 山西汾西重工有限责任公司 | Long section of thick bamboo surface machine tooling dress of small -bore thin wall |
| CN205519694U (en) * | 2016-04-14 | 2016-08-31 | 山西鑫钜重型机械制造有限公司 | Safe digit control machine tool |
| CN106694925A (en) * | 2015-08-19 | 2017-05-24 | 河南省银河通信电器设备有限公司 | Chuck for machine tool |
| CN106735378A (en) * | 2017-02-20 | 2017-05-31 | 中核(天津)科技发展有限公司 | For the dual-purpose clamping device of inner support outer clip |
| CN206952200U (en) * | 2017-05-31 | 2018-02-02 | 上海朋泰机械科技有限公司 | A kind of round thin wall piece turning tool |
| CN207058159U (en) * | 2017-07-05 | 2018-03-02 | 龙工(上海)液压有限公司 | A kind of number car auxiliary mould quickly changed the mold |
| CN208913168U (en) * | 2018-10-15 | 2019-05-31 | 四川川润液压润滑设备有限公司 | A kind of numerically controlled lathe special fixture of filter cylinder |
| CN211758562U (en) * | 2020-01-15 | 2020-10-27 | 中核(天津)科技发展有限公司 | Clamping device for turning outer diameter of thin-wall cylinder part |
-
2020
- 2020-01-15 CN CN202010041677.5A patent/CN110935900A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN200954555Y (en) * | 2005-11-24 | 2007-10-03 | 天津天铁冶金集团有限公司 | Elastic internal supporting dabber |
| JP2008213080A (en) * | 2007-03-02 | 2008-09-18 | Denso Corp | Thin-walled cylinder retaining tool and machining method for thin-walled cylinder |
| DE202013104143U1 (en) * | 2013-09-11 | 2014-12-12 | Schunk Gmbh & Co. Kg Spann- Und Greiftechnik | Power Chucks |
| CN104001951A (en) * | 2014-05-04 | 2014-08-27 | 洛阳维斯格轴承有限公司 | Clamp device for uniform-section ultra-thin-wall bearing ring outer surface turning |
| CN204747550U (en) * | 2015-07-06 | 2015-11-11 | 四川华庆机械有限责任公司 | Automobile -used anchor clamps of star gear in car constant velocity cardan joint |
| CN106694925A (en) * | 2015-08-19 | 2017-05-24 | 河南省银河通信电器设备有限公司 | Chuck for machine tool |
| CN205057097U (en) * | 2015-10-21 | 2016-03-02 | 保定天银机械有限公司 | Processingequipment of constant velocity cardan joint star cover |
| CN205270907U (en) * | 2015-12-08 | 2016-06-01 | 山西汾西重工有限责任公司 | Long section of thick bamboo surface machine tooling dress of small -bore thin wall |
| CN205519694U (en) * | 2016-04-14 | 2016-08-31 | 山西鑫钜重型机械制造有限公司 | Safe digit control machine tool |
| CN106735378A (en) * | 2017-02-20 | 2017-05-31 | 中核(天津)科技发展有限公司 | For the dual-purpose clamping device of inner support outer clip |
| CN206952200U (en) * | 2017-05-31 | 2018-02-02 | 上海朋泰机械科技有限公司 | A kind of round thin wall piece turning tool |
| CN207058159U (en) * | 2017-07-05 | 2018-03-02 | 龙工(上海)液压有限公司 | A kind of number car auxiliary mould quickly changed the mold |
| CN208913168U (en) * | 2018-10-15 | 2019-05-31 | 四川川润液压润滑设备有限公司 | A kind of numerically controlled lathe special fixture of filter cylinder |
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