CN114769643A - Clamping device for machining slender shaft and numerical control cyclone milling machine tool - Google Patents
Clamping device for machining slender shaft and numerical control cyclone milling machine tool Download PDFInfo
- Publication number
- CN114769643A CN114769643A CN202210550169.9A CN202210550169A CN114769643A CN 114769643 A CN114769643 A CN 114769643A CN 202210550169 A CN202210550169 A CN 202210550169A CN 114769643 A CN114769643 A CN 114769643A
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- clamping
- tailstock
- workpiece
- driving
- sliding sleeve
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- 238000003801 milling Methods 0.000 title claims abstract description 13
- 238000003754 machining Methods 0.000 title claims description 13
- 239000010720 hydraulic oil Substances 0.000 claims description 12
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/08—Work-clamping means other than mechanically-actuated
- B23Q3/082—Work-clamping means other than mechanically-actuated hydraulically actuated
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Turning (AREA)
Abstract
The invention discloses a clamping device for processing a slender shaft and a numerical control cyclone milling machine tool, belonging to the technical field of cyclone milling machine tools, and comprising: the tailstock is internally provided with a tailstock sliding sleeve which can slide relative to the tailstock; a clamping part having a clamping space for clamping one end of a workpiece; the rotating part comprises a rotating part and a fixed part, and the rotating part rotates relative to the fixed part by taking the axis of the rotating part as a shaft; the rotating piece is fixedly connected with the clamping part; the fixing piece is fixedly connected with the tailstock sliding sleeve; the driving assembly is fixedly connected to the tailstock, and the driving end of the driving assembly is in driving connection with the tailstock sliding sleeve; the driving assembly is used for driving the tailstock sliding sleeve to move towards one end far away from the workpiece. The invention changes the traditional clamping scheme of one clamping and one pushing of the three-jaw chuck and the center into the clamping mode of one clamping and one pulling of the three-jaw chuck and the novel center, and perfectly solves the problem that the straightness is difficult to ensure in the processing process of the slender shaft type workpiece.
Description
Technical Field
The invention belongs to the technical field of cyclone milling machine tools, and particularly relates to a clamping device for machining a slender shaft and a numerical control cyclone milling machine tool.
Background
In the field of cyclone milling machine tools, a common clamping mode is 'one clamping and one top', but for the processing of a long and thin screw rod, even if the axial force provided by a tailstock center is not provided, the middle part of the long and thin screw rod can generate bending deformation due to the gravity of the tail seat center, and in addition, the axial force which is provided by a traditional tailstock center and points to the direction of a chuck can further amplify the deformation, so that the processing precision is influenced.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme:
a clamp for machining elongate shafts, comprising:
the tailstock comprises a tailstock, wherein a tailstock sliding sleeve capable of sliding relative to the tailstock is arranged in the tailstock;
a clamping part having a clamping space for clamping one end of a workpiece;
the rotating part comprises a rotating part and a fixed part, and the rotating part rotates relative to the fixed part by taking the axis of the rotating part as a shaft; the rotating piece is fixedly connected with the clamping part; the fixing piece is fixedly connected with the tailstock sliding sleeve;
the driving assembly is fixedly connected to the tailstock, and the driving end of the driving assembly is in driving connection with the tailstock sliding sleeve; the driving assembly is used for driving the tailstock sliding sleeve to move towards one end far away from the workpiece so as to realize axial stretching of the workpiece.
The machining device further comprises a supporting part detachably connected to the central support, and the supporting part is used for lifting the workpiece so as to reduce the deformation of the workpiece in the machining process.
Further, the supporting part is a semi-open guide sleeve, the semi-open guide sleeve comprises a semi-circular guide sleeve body, and the semi-circular guide sleeve body is provided with an arc-shaped groove matched with the workpiece; the semicircular guide sleeve body is detachably connected to the central support.
Furthermore, the clamping part comprises a collet chuck and a collet chuck connecting seat which are coaxially arranged, and the collet chuck connecting seat is positioned on one side of the collet chuck, which is far away from the workpiece, and is fixedly connected with the rotating piece; the spring chuck connecting seat is conical, and a clamping space for clamping one end of a workpiece is arranged in the spring chuck connecting seat; the inner side wall of the spring chuck is a conical surface in compression joint with the spring chuck connecting seat.
Furthermore, the rotating part is a rotary connecting flange plate, the fixing part is a Morse taper shank, and the rotary connecting flange plate is in rotary connection with the first end of the Morse taper shank through at least 1 first bearing; the second end of the Morse taper shank is a frustum, a connecting hole is arranged in the tailstock sliding sleeve, the small-diameter end of the frustum of the Morse taper shank extends into the connecting hole, and the first end of the connecting hole is a tapered hole matched with the frustum; the driving assembly is connected with the small-diameter end of the frustum in the connecting hole through a connecting assembly.
Furthermore, the connecting assembly comprises a hollow screw rod positioned in the second end of the connecting hole, and the hollow screw rod is in threaded connection with the small-diameter end of the frustum through a locking bolt positioned in a cavity of the hollow screw rod; a locking nut is sleeved on the outer side of the hollow screw rod and fixedly connected with the tailstock sliding sleeve through a connecting bolt; the hollow screw rod is in driving connection with the driving end of the driving assembly.
Furthermore, the driving component is a hydraulic oil cylinder, and the fixed end of the hydraulic oil cylinder is fixedly connected with the tailstock; and a piston of the hydraulic oil cylinder is in threaded connection with the hollow screw rod.
A numerical control cyclone milling machine tool comprises the clamping device for machining the slender shaft.
Has the beneficial effects that:
the clamping device for processing the slender shaft provided by the invention changes the traditional clamping scheme of clamping the three-jaw chuck and the center one by one into the clamping mode of clamping the three-jaw chuck and the novel center one by one, and perfectly solves the problem that the straightness is difficult to ensure in the processing process of the slender shaft workpiece.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
wherein, 1, a chuck; 2. a cyclone milling head frame; 3. a center support; 4. a semi-open guide sleeve; 5. a workpiece; 6. a collet chuck; 7. a collet coupling seat; 8. tightening the bolt; 9. a gasket; 10. a thrust bearing; 11. a first bearing; 12. a rotating part; 13. a tailstock sliding sleeve; 14. locking the bolt; 15. a tail seat; 16. a hollow screw rod; 17. locking a nut; 18. a hydraulic cylinder; 19. a hydraulic oil pipe.
Detailed Description
Example 1
Referring to figures 1-2, a clamping device for machining elongate shafts comprises:
a tail seat 15, wherein a tail seat sliding sleeve 13 which can slide relative to the tail seat 15 is arranged in the tail seat 15;
a clamping portion having a clamping space for clamping one end of the workpiece 5;
the rotating part 12, the rotating part 12 includes rotating part and stationary part, the rotating part rotates relative to stationary part with its axis as the axle; the rotating part is fixedly connected with the clamping part; the fixed piece is fixedly connected with the tailstock sliding sleeve 13;
the driving component is fixedly connected to the tailstock 15, and the driving end of the driving component is in driving connection with the tailstock sliding sleeve 13; the driving component is used for driving the tailstock sliding sleeve 13 to move towards one end far away from the workpiece 5 so as to realize axial stretching of the workpiece 5, namely, axial force pulling force is provided for the workpiece 5 in the machining process.
In the present embodiment, the workpiece 5 to be machined is a titanium alloy elongated shaft. The other end of the workpiece 5 is a chuck 1 of a machine tool, and the chuck 1 is a three-jaw chuck having a clamping space for clamping the workpiece 5.
The clamping device for processing the slender shaft further comprises a supporting part detachably connected to the central support 3, and the supporting part is used for lifting the workpiece 5 so as to reduce the deformation of the workpiece 5 in the processing process.
In this embodiment, the supporting portion is a semi-open guide sleeve 4, the semi-open guide sleeve 4 includes a semi-circular guide sleeve body, and the semi-circular guide sleeve body has an arc-shaped groove adapted to the workpiece 5; the semicircular guide sleeve body is detachably connected to the central support. The opening end face of the arc-shaped groove of the semi-opening guide sleeve body is a vertical face, namely, the opening of the arc-shaped groove of the semi-opening guide sleeve body is positioned in the horizontal direction.
In the embodiment, the semi-open guide sleeve 4 supports the workpiece 5 by using the central support 3, and the semi-open guide sleeve 4 not only plays a role of supporting the workpiece 5, but also does not influence the machining of a cutter on the cyclone milling head frame 2, so that the deformation of the workpiece 5 in the machining process is reduced.
In the embodiment, the clamping part is a collet chuck 6 and a collet chuck connecting seat 7 which are coaxially arranged, and the collet chuck connecting seat 7 is positioned on one side of the collet chuck 6, which is far away from the workpiece 5, and is fixedly connected with the rotating piece; the collet chuck connecting seat 7 is conical, and a clamping space for clamping one end of the workpiece 5 is arranged in the collet chuck connecting seat 7; the inner side wall of the spring chuck 6 is a conical surface which is in compression joint with the spring chuck connecting seat 7.
In another embodiment, the collet chuck 6 is preferably a hydraulic collet chuck, so that the workpiece is clamped more conveniently and quickly, automation is realized, and the operation by personnel is more convenient. In this embodiment, the collet 6 is preferably a Rotary Power Chuck GA sub-jaw type rapid hydro-pneumatic swivel collet.
In this embodiment, the rotating member is a rotary connecting flange, the fixing member is a morse taper shank, and the rotary connecting flange is rotatably connected with a first end of the morse taper shank through at least 1 first bearing 11; the second end of the Morse taper shank is a frustum, a connecting hole is arranged in the tailstock sliding sleeve 13, the small-diameter end of the frustum of the Morse taper shank extends into the connecting hole, and the first end of the connecting hole is a tapered hole matched with the frustum; the driving assembly is connected with the small-diameter end of the frustum in the connecting hole through the connecting assembly.
In this embodiment, the rotary connecting flange is rotatably connected to the first end of the morse taper shank via 2 first bearings 11 arranged side by side.
In this embodiment, a groove and a through hole penetrating through the groove are further formed in the middle of the rotary connecting flange plate, a thrust bearing 10 is arranged in the groove, and the tension bolt 8 penetrates through the thrust bearing 10 and the through hole and then is fixedly connected with the first end thread of the morse taper shank; wherein, the tension bolt 8 and the thrust bearing 10 are provided with a gasket 9 for limiting the installation position of the thrust bearing 10. The arrangement of the part can ensure the axial connection between the rotary connecting flange plate and the Morse taper shank and does not influence the relative rotation between the rotary connecting flange plate and the Morse taper shank.
In the embodiment, the connecting assembly comprises a hollow screw rod 16 positioned in the second end of the connecting hole, and the hollow screw rod 16 is in threaded connection with the small-diameter end of the frustum through a locking bolt 14 positioned in the cavity of the hollow screw rod 16; the outer side of the hollow screw rod 16 is sleeved with a lock nut 17, wherein the lock nut 17 is in threaded connection with the external thread of the hollow screw rod 16. The lock nut 17 is fixedly connected with the tailstock sliding sleeve 13 through a connecting bolt; the hollow screw rod 16 is in driving connection with the driving end of the driving assembly.
In this embodiment, the driving component is a hydraulic cylinder 18, and a fixed end of the hydraulic cylinder 18 is fixedly connected with the tailstock 15; the piston of the hydraulic oil cylinder 18 is in threaded connection with the hollow screw rod 16, wherein a hydraulic oil pipe 19 communicated with the hydraulic oil cylinder 18 is arranged on the hydraulic oil cylinder 18.
In this embodiment, hydraulic ram 18 is used to provide a constant hydraulic tension to ensure straightness of the workpiece during processing.
The hydraulic tension provided by the hydraulic oil cylinder 18 can be determined according to the actual processing condition.
Example 2
A numerical control cyclone milling machine tool, which comprises the clamping device for processing the slender shaft provided by the embodiment 1. The numerical control cyclone milling machine tool provided by the embodiment adopts a one-clamping one-pulling processing mode, and breaks through the traditional one-clamping one-pushing processing mode; meanwhile, through the transformation of the tailstock part (namely, the increase of hydraulic tension), the straightness of the workpiece in the processing process is ensured, and the problem that the straightness of the slender shaft workpiece in the processing process is difficult to ensure is solved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any minor modifications, equivalent changes and modifications made to the above embodiment according to the technical spirit of the present invention are within the technical scope of the present invention.
Claims (8)
1. A clamping device for processing an elongated shaft is characterized by comprising:
the tailstock comprises a tailstock, wherein a tailstock sliding sleeve capable of sliding relative to the tailstock is arranged in the tailstock;
a clamping part having a clamping space for clamping one end of a workpiece;
the rotating part comprises a rotating part and a fixed part, and the rotating part rotates relative to the fixed part by taking the axis of the rotating part as a shaft; the rotating part is fixedly connected with the clamping part; the fixing piece is fixedly connected with the tailstock sliding sleeve;
the driving assembly is fixedly connected to the tailstock, and the driving end of the driving assembly is in driving connection with the tailstock sliding sleeve; the driving assembly is used for driving the tailstock sliding sleeve to move towards one end far away from the workpiece so as to realize axial stretching of the workpiece.
2. A holder for a machining elongated shaft according to claim 1, further comprising a support portion detachably attached to the center support, the support portion being configured to lift the workpiece to reduce deformation of the workpiece during machining.
3. The clamping device for machining elongated shafts as claimed in claim 2, wherein the supporting portion is a semi-open guide sleeve, the semi-open guide sleeve includes a semi-circular guide sleeve body, and the semi-circular guide sleeve body is provided with an arc-shaped groove matched with the workpiece; the semicircular guide sleeve body is detachably connected to the central support.
4. A clamping device for processing an elongated shaft according to claim 1, wherein the clamping part is a collet chuck and a collet chuck connecting seat which are coaxially arranged, the collet chuck connecting seat is positioned on one side of the collet chuck, which is far away from a workpiece, and is fixedly connected with the rotating piece; the spring chuck connecting seat is conical, and a clamping space for clamping one end of a workpiece is arranged in the spring chuck connecting seat; the inner side wall of the spring chuck is a conical surface in compression joint with the spring chuck connecting seat.
5. A clamping device for processing an elongated shaft according to claim 4, wherein the rotating part is a rotating connecting flange, the fixing part is a Morse taper shank, and the rotating connecting flange is rotatably connected with the first end of the Morse taper shank through at least 1 first bearing; the second end of the Morse taper shank is a frustum, a connecting hole is formed in the tailstock sliding sleeve, the small-diameter end of the frustum of the Morse taper shank extends into the connecting hole, and the first end of the connecting hole is a tapered hole matched with the frustum; the driving assembly is connected with the small-diameter end of the frustum in the connecting hole through a connecting assembly.
6. A clamping apparatus for processing an elongated shaft according to claim 5, wherein the connecting assembly includes a hollow screw rod located in the second end of the connecting hole, the hollow screw rod is in threaded connection with the small-diameter end of the frustum through a locking bolt located in a cavity of the hollow screw rod; a locking nut is sleeved on the outer side of the hollow screw rod and fixedly connected with the tailstock sliding sleeve through a connecting bolt; the hollow screw rod is in driving connection with the driving end of the driving assembly.
7. The clamping device for processing the slender shaft according to claim 6, wherein the driving assembly is a hydraulic oil cylinder, and a fixed end of the hydraulic oil cylinder is fixedly connected with the tailstock; and a piston of the hydraulic oil cylinder is in threaded connection with the hollow screw rod.
8. A numerical control cyclone milling machine tool, which is characterized by comprising the clamping device for processing the slender shaft according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210550169.9A CN114769643A (en) | 2022-05-20 | 2022-05-20 | Clamping device for machining slender shaft and numerical control cyclone milling machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210550169.9A CN114769643A (en) | 2022-05-20 | 2022-05-20 | Clamping device for machining slender shaft and numerical control cyclone milling machine tool |
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| Publication Number | Publication Date |
|---|---|
| CN114769643A true CN114769643A (en) | 2022-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210550169.9A Pending CN114769643A (en) | 2022-05-20 | 2022-05-20 | Clamping device for machining slender shaft and numerical control cyclone milling machine tool |
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| CN (1) | CN114769643A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118080997A (en) * | 2024-04-28 | 2024-05-28 | 山西风源机械制造有限公司 | Special numerical control whirling milling machine tool for machining threaded element |
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|---|---|---|---|---|
| CN102744427A (en) * | 2012-07-26 | 2012-10-24 | 中国有色（沈阳）冶金机械有限公司 | Horizontal lathe for machining cylindrical eccentric part and method adopted by same |
| CN104440336A (en) * | 2014-12-13 | 2015-03-25 | 遵义金惠机械制造有限责任公司 | Tensioning clamp of elongated shaft |
| CN104907603A (en) * | 2015-06-15 | 2015-09-16 | 何小平 | Shaft processing device |
| CN204735718U (en) * | 2015-06-16 | 2015-11-04 | 西安航空动力控制科技有限公司 | A device for slender axles turning |
| CN205519680U (en) * | 2016-04-19 | 2016-08-31 | 周桂春 | Numerical control lathe's dynamic sending machine |
| CN106001615A (en) * | 2016-06-22 | 2016-10-12 | 成都飞机工业（集团）有限责任公司 | Device and method for machining oversized shaft part with high length-diameter ratio |
| CN207309496U (en) * | 2017-09-06 | 2018-05-04 | 国营芜湖机械厂 | A kind of grip device for slender axles accessory turning |
| CN111250733A (en) * | 2020-02-26 | 2020-06-09 | 浙江富春江水电设备有限公司 | Processing method of overweight long shaft |
| WO2022036915A1 (en) * | 2020-08-17 | 2022-02-24 | 江苏晨光数控机床有限公司 | Numerical-control cyclone milling machine |
-
2022
- 2022-05-20 CN CN202210550169.9A patent/CN114769643A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102744427A (en) * | 2012-07-26 | 2012-10-24 | 中国有色（沈阳）冶金机械有限公司 | Horizontal lathe for machining cylindrical eccentric part and method adopted by same |
| CN104440336A (en) * | 2014-12-13 | 2015-03-25 | 遵义金惠机械制造有限责任公司 | Tensioning clamp of elongated shaft |
| CN104907603A (en) * | 2015-06-15 | 2015-09-16 | 何小平 | Shaft processing device |
| CN204735718U (en) * | 2015-06-16 | 2015-11-04 | 西安航空动力控制科技有限公司 | A device for slender axles turning |
| CN205519680U (en) * | 2016-04-19 | 2016-08-31 | 周桂春 | Numerical control lathe's dynamic sending machine |
| CN106001615A (en) * | 2016-06-22 | 2016-10-12 | 成都飞机工业（集团）有限责任公司 | Device and method for machining oversized shaft part with high length-diameter ratio |
| CN207309496U (en) * | 2017-09-06 | 2018-05-04 | 国营芜湖机械厂 | A kind of grip device for slender axles accessory turning |
| CN111250733A (en) * | 2020-02-26 | 2020-06-09 | 浙江富春江水电设备有限公司 | Processing method of overweight long shaft |
| WO2022036915A1 (en) * | 2020-08-17 | 2022-02-24 | 江苏晨光数控机床有限公司 | Numerical-control cyclone milling machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118080997A (en) * | 2024-04-28 | 2024-05-28 | 山西风源机械制造有限公司 | Special numerical control whirling milling machine tool for machining threaded element |
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