CN115179047A - Turning and milling combined machining center with hybrid structure - Google Patents
Turning and milling combined machining center with hybrid structure Download PDFInfo
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- CN115179047A CN115179047A CN202211074325.5A CN202211074325A CN115179047A CN 115179047 A CN115179047 A CN 115179047A CN 202211074325 A CN202211074325 A CN 202211074325A CN 115179047 A CN115179047 A CN 115179047A
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- direction feeding
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- 238000003801 milling Methods 0.000 title claims abstract description 84
- 238000012545 processing Methods 0.000 claims abstract description 7
- 239000002131 composite material Substances 0.000 claims description 7
- 230000009466 transformation Effects 0.000 claims description 2
- 238000013461 design Methods 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 5
- 238000005520 cutting process Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P23/00—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass
- B23P23/02—Machine tools for performing different machining operations
-
- 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
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
- B23Q5/34—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission
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Abstract
The invention discloses a turning and milling combined machining center with a series-parallel structure, which comprises a lathe bed, a main shaft, a milling tool magazine, a multi-shaft milling platform, a Z-direction feeding platform, a tailstock, an X-direction feeding platform and a turning tool rest. The turning tool rest is arranged on the X-direction feeding platform, the X-direction feeding platform is arranged on the Z-direction feeding platform, and the turning tool can move along the X direction and the Z direction. The multi-axis milling platform is installed on the Z-direction feeding platform, is opposite to the turning tool rest and is respectively located on two sides of the main shaft, the multi-axis milling platform is composed of a fixing plate, a movable plate, milling shaft heads, electric push rods, spherical hinges and the like, and the milling shaft heads can be driven to carry out pose change by changing the telescopic lengths of the six electric push rods. The invention adopts the parallel and series combined series-parallel structure design, has compact structure and flexible movement, can realize the processing modes of turning, drilling, reaming, five-axis milling and the like, and is suitable for processing parts with complex curved surfaces and complex structures.
Description
Technical Field
The invention relates to the technical field of machining equipment, in particular to a turning and milling composite machining center with a parallel and series combined series-parallel structure.
Background
In the field of modern machining, structural design and machining processes of parts become increasingly complex, and therefore higher requirements are put on the degree of freedom of a machine tool. The traditional machine tool is generally of a serial structure, and has the advantages of large working range and simple motion control, but has the defects of large mass of a moving part, accumulated position error and the like. On the contrary, the parallel structure has the advantages of good motion flexibility, large rigidity, small inertia, compact structure, no accumulation of position errors and the like, but has smaller working range and complex motion algorithm. The machine tool with the hybrid structure having the advantages of the two is currently paid extensive attention by research and development institutions of various countries, and becomes an important research direction for the development of future mechanical processing machines.
Disclosure of Invention
The invention aims to provide a turning and milling composite machining center with a series-parallel structure.
The technical scheme adopted by the invention is as follows: a turning and milling composite machining center with a series-parallel structure comprises a lathe bed, a main shaft, a milling tool magazine, a multi-shaft milling platform, a Z-direction feeding platform, a tailstock, an X-direction feeding platform and a turning tool rest. The lathe tool rest is arranged on an X-direction feeding platform, and the X-direction feeding platform is arranged on a Z-direction feeding platform. The multi-axis milling platform is arranged on the Z-direction feeding platform, is opposite to the turning tool rest and is respectively positioned on two sides of the main shaft. And the Z-direction feeding platform and the tailstock are arranged on a linear guide rail of the lathe bed.
The main shaft is driven by a servo electric main shaft, the output end of the main shaft is connected with the three-jaw chuck, and the main shaft can clamp a workpiece to be processed to rotate at a high speed and adjust the speed steplessly. In a turning state, the main shaft drives the workpiece to rotate at a high speed to form a turning main motion; when in a milling state, the main shaft can be used as a C shaft to drive a workpiece to perform accurate indexing rotation.
The multi-axis milling platform is composed of a fixed plate, a movable plate, a milling shaft head, an electric push rod and a spherical hinge. The electric push rods are driven by the servo motor, the six electric push rods are arranged in parallel, and the milling shaft heads can be driven to perform pose transformation by changing the telescopic length of the electric push rods. The multi-axis milling platform can move in the Z direction to realize quick positioning, and the cutting feed motion is realized through the parallel motion of six electric push rods. In addition, the milling spindle head is connected with the movable plate through a revolute pair, the milling spindle head can rotate 0-90 degrees relative to the movable plate, the rotary motion is defined as B-axis motion, and switching between a vertical milling state and a horizontal milling state can be achieved.
Optionally, the milling tool magazine adopts a disc type structure, is provided with a plurality of clamping tool seats, and can be used for loading various tools such as a milling tool, a drill bit and a reamer, the milling tool magazine is arranged on a sliding guide rail, the milling tool magazine is pushed out in a tool changing state, and the milling tool magazine is pulled back in a machine tool normal running state.
Optionally, the Z-direction feeding platform and the X-direction feeding platform may be driven by linear motors, or may be driven by ball screw pairs or servo motors.
Optionally, the turning tool rest adopts a turret tool rest structure, a plurality of tools can be loaded, and the turret is driven to rotate by a servo motor to complete tool changing. When the machine tool is used for machining, the turning tool can move along the X axis and the Z axis.
Compared with the prior art, the invention has the following advantages: the invention adopts the parallel and series combined series-parallel structure design, and integrates the advantages of parallel connection and series connection. Six electric push rods of the multi-axis milling platform are arranged in parallel, so that the multi-axis milling platform is high in rigidity, good in precision, compact in structure and flexible in movement, and can realize five-axis linkage milling. The milling spindle heads of the multi-axis milling platform are connected with the movable plate in series through revolute pairs, the switching between a vertical milling state and a horizontal milling state can be realized, and the cutting processing of a workpiece in the radial direction and the axial direction is realized. The milling shaft head can be also loaded with cutters such as a drill bit, a reamer and the like, so that the processing modes such as drilling, reaming and the like are realized, and the milling shaft head is suitable for processing parts with complex curved surfaces and complex structures. The turning tool rest and the multi-axis milling platform are respectively positioned on two sides of the main shaft, so that the relative balance of the gravity borne by the Z-direction feeding platform is kept, and the turning and the milling share a Z-axis servo feeding system, so that the machine tool structure is simplified, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a right side view of the present invention.
FIG. 3 is a view of the present invention in the direction of A.
Fig. 4 is a schematic structural view of the multi-axis milling platform of the present invention.
FIG. 5 is a schematic diagram of the horizontal milling state of the present invention.
FIG. 6 is a schematic diagram showing the tool changing state of the present invention.
Fig. 7 is a schematic view of the structure of the turning tool holder of the present invention.
Description of reference numerals: 1 is a lathe bed; 2 is a main shaft; 3, a milling tool magazine; 4, a multi-axis milling platform; 5 is a Z-direction feeding platform; 6 is a tailstock; 7 is an X-direction feeding platform; 8 is a turning tool holder; 30 is an X-direction linear guide rail; 31 is a Z-direction linear guide rail; 40 is a fixing plate; 41 is a movable plate; 42 is the milling spindle head; 43 is an electric push rod; 44 is a ball joint; 50 is the workpiece to be machined; 60 is a tool clamping seat; 61 is a tool magazine sliding guide; 70 is a turret; 71 is a compact; 72 is a locking screw; 73 is a turning tool.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1 to 3, a turning and milling composite machining center with a series-parallel structure comprises a lathe bed 1, a spindle 2, a milling cutter library 3, a multi-axis milling platform 4, a Z-direction feeding platform 5, a tailstock 6, an X-direction feeding platform 7 and a turning tool rest 8. The turning tool rest 8 is arranged on the X-direction feeding platform 7, and the X-direction feeding platform 7 is arranged on the Z-direction feeding platform 5. The multi-axis milling platform 4 is installed on the Z-direction feeding platform 5, is opposite to the turning tool rest 8, and is respectively located on two sides of the main shaft 2. The Z-direction feeding platform 5 and the tailstock 6 are arranged on a Z-direction linear guide rail 31 of the lathe bed 1.
The main shaft 2 is driven by a servo electric main shaft, the output end of the main shaft is connected with a three-jaw chuck, and the main shaft can clamp a workpiece to be processed to rotate at a high speed and adjust the speed steplessly. When in a turning state, the main shaft drives the workpiece to rotate at a high speed to form a turning main motion; when in a milling state, the main shaft 2 can be used as a C-axis to drive a workpiece to perform accurate indexing rotation.
As shown in fig. 4, the multi-axis milling platform 4 is composed of a fixed plate 40, a movable plate 41, a milling spindle head 42, an electric push rod 43 and a spherical hinge 44. The electric push rods 43 are driven by servo motors, the six electric push rods 43 are arranged in parallel, and the milling shaft heads 42 can be driven to change the pose by changing the telescopic length of the electric push rods 43. Two ends of the electric push rod 43 are respectively connected with the fixed plate 40 and the movable plate 41 through a spherical hinge 44. The multi-axis milling platform 4 can move in the Z direction to realize quick positioning, and the cutting feed motion is realized by the parallel motion of six electric push rods 43. The milling spindle head 42 is connected with the movable plate 41 through a revolute pair, the milling spindle head 42 can rotate 0-90 degrees relative to the movable plate 41, the rotation motion is defined as B-axis motion, and switching between a vertical milling state and a horizontal milling state can be achieved, wherein the horizontal milling state is shown in fig. 5.
As shown in fig. 6, the tool magazine 3 is of a disc type structure, and has eight tool holders 60 for holding eight tools. The milling cutter base 3 can rotate around the center of the milling cutter base, and the rotation motion is driven by a servo motor. The milling tool magazine 3 is mounted on a tool magazine sliding guide rail 61, and the translational sliding of the milling tool magazine 3 is driven by a rack and a stepping motor. When the milling tool magazine 3 is in a tool changing state, the milling spindle head 42 can move to a tool clamping seat position right below the milling tool magazine 3 to take or store tools. The milling tool magazine 3 is pulled back in the normal operating state of the machine tool.
The Z-direction feeding platform 5 and the X-direction feeding platform 7 are driven by linear motors.
The tailstock 6 can manually adjust the position along the Z-direction linear guide rail 31 to tightly push the center of the end face of the workpiece to inhibit vibration, and is usually used when a long workpiece is machined.
As shown in fig. 7, the turning tool holder 8 has a turret structure, the contact surface between the turret 70 and the pressing block 71 is a wedge-shaped inclined surface, and the pressing block 71 generates a pressing force on the turning tool 73 by tightening the locking screw 72, thereby fixing the turning tool 73. Eight cutters can be mounted on the turning tool rest 8, and the turret 70 is driven to rotate through a servo motor to complete cutter changing. When the machine tool is used for machining, the turning tool can move along the X-axis and the Z-axis.
It will be appreciated by those skilled in the art that the present invention may be embodied in other specific forms without departing from the essential characteristics thereof. Accordingly, the disclosed embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a series-parallel structure turnning and milling combined machining center, includes lathe bed, main shaft, milling cutter storehouse, multiaxis milling platform, Z to feeding platform, tailstock, X to feeding platform and turning tool rest, its characterized in that: the lathe tool rest is installed on an X-direction feeding platform, the X-direction feeding platform is installed on a Z-direction feeding platform, the multi-shaft milling platform is installed on the Z-direction feeding platform, is opposite to the lathe tool rest 8 and is located on two sides of the spindle 2 respectively, and the Z-direction feeding platform and the tailstock are installed on a Z-direction linear guide rail of the lathe bed.
2. The turning and milling composite machining center with the series-parallel structure as claimed in claim 1, wherein: the main shaft is driven by the servo electric main shaft, the main shaft rotates at a high speed to serve as a turning main to move in a turning state, and the main shaft can serve as a C shaft to perform accurate indexing rotation in a milling state.
3. The turning and milling composite machining center with the series-parallel structure as claimed in claim 1, wherein: the multi-axis milling platform is composed of a fixed plate, a movable plate, milling shaft heads, electric push rods and spherical hinges, wherein the electric push rods are driven by servo motors, the six electric push rods are arranged in parallel, and the milling shaft heads can be driven to perform pose transformation by changing the telescopic length of the electric push rods, so that five-axis linkage milling processing is realized.
4. The turning and milling composite machining center with the series-parallel structure as claimed in claim 3, wherein: the milling shaft head is connected with the movable plate through a revolute pair, the milling shaft head can rotate 0-90 degrees relative to the movable plate, the rotation motion is defined as B-axis motion, and the switching between a vertical milling state and a horizontal milling state can be realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074325.5A CN115179047A (en) | 2022-09-03 | 2022-09-03 | Turning and milling combined machining center with hybrid structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211074325.5A CN115179047A (en) | 2022-09-03 | 2022-09-03 | Turning and milling combined machining center with hybrid structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115179047A true CN115179047A (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211074325.5A Pending CN115179047A (en) | 2022-09-03 | 2022-09-03 | Turning and milling combined machining center with hybrid structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN115179047A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990038502A (en) * | 1997-11-05 | 1999-06-05 | 김종원 | Parallel mechanism structure for controlling position and posture in three dimensions |
| CN1555963A (en) * | 2003-12-31 | 2004-12-22 | 西安理工大学 | Double gantry horizontal series parallel schematic milling composite digital controlled machine tool |
| CN201023184Y (en) * | 2006-12-01 | 2008-02-20 | 哈尔滨工业大学 | Seven-shaft series-parallel numerical control milling machine |
| CN101323089A (en) * | 2008-07-21 | 2008-12-17 | 西安理工大学 | Three-axis series-multiple connection compound mainshaft head mechanism |
| CN103252673A (en) * | 2013-05-24 | 2013-08-21 | 哈尔滨工业大学（威海） | Horizontal type six-shaft parallel-serial computer numerical control milling machine |
| DE102012113022B3 (en) * | 2012-12-21 | 2014-05-15 | Mag Ias Gmbh | Machining process of journal crosses on lathes |
| CN203610964U (en) * | 2013-12-13 | 2014-05-28 | 广州隆邦自动化控制设备有限公司 | Turning and milling composite machine tool |
| CN105290789A (en) * | 2015-11-30 | 2016-02-03 | 湘潭大学 | Parallel additive and subtractive composite manufacturing machine tool and composite manufacturing method thereof |
-
2022
- 2022-09-03 CN CN202211074325.5A patent/CN115179047A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR19990038502A (en) * | 1997-11-05 | 1999-06-05 | 김종원 | Parallel mechanism structure for controlling position and posture in three dimensions |
| CN1555963A (en) * | 2003-12-31 | 2004-12-22 | 西安理工大学 | Double gantry horizontal series parallel schematic milling composite digital controlled machine tool |
| CN201023184Y (en) * | 2006-12-01 | 2008-02-20 | 哈尔滨工业大学 | Seven-shaft series-parallel numerical control milling machine |
| CN101323089A (en) * | 2008-07-21 | 2008-12-17 | 西安理工大学 | Three-axis series-multiple connection compound mainshaft head mechanism |
| DE102012113022B3 (en) * | 2012-12-21 | 2014-05-15 | Mag Ias Gmbh | Machining process of journal crosses on lathes |
| CN103252673A (en) * | 2013-05-24 | 2013-08-21 | 哈尔滨工业大学（威海） | Horizontal type six-shaft parallel-serial computer numerical control milling machine |
| CN203610964U (en) * | 2013-12-13 | 2014-05-28 | 广州隆邦自动化控制设备有限公司 | Turning and milling composite machine tool |
| CN105290789A (en) * | 2015-11-30 | 2016-02-03 | 湘潭大学 | Parallel additive and subtractive composite manufacturing machine tool and composite manufacturing method thereof |
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Application publication date: 20221014 |