CN111390650A - Inclined rail type double-spindle turning and milling combined machining center - Google Patents
Inclined rail type double-spindle turning and milling combined machining center Download PDFInfo
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- CN111390650A CN111390650A CN202010269590.3A CN202010269590A CN111390650A CN 111390650 A CN111390650 A CN 111390650A CN 202010269590 A CN202010269590 A CN 202010269590A CN 111390650 A CN111390650 A CN 111390650A
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- 238000003801 milling Methods 0.000 title claims abstract description 27
- 238000007514 turning Methods 0.000 title claims abstract description 26
- 230000009977 dual effect Effects 0.000 claims 2
- 238000003754 machining Methods 0.000 abstract description 26
- 238000005520 cutting process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 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
- B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
- B23Q39/04—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation the sub-assemblies being arranged to operate simultaneously at different stations, e.g. with an annular work-table moved in steps
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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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
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- 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
- B23Q41/00—Combinations or associations of metal-working machines not directed to a particular result according to classes B21, B23, or B24
- B23Q41/04—Features relating to relative arrangements of machines
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- 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
- B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
- B23Q2039/006—Machines with multi-spindles
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- 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
- B23Q39/00—Metal-working machines incorporating a plurality of sub-assemblies, each capable of performing a metal-working operation
- B23Q2039/008—Machines of the lathe type
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- Automatic Tool Replacement In Machine Tools (AREA)
Abstract
The invention belongs to the technical field of machining equipment, and provides an inclined rail type double-spindle turning and milling combined machining center which comprises a machine tool base, wherein the left side and the right side of the machine tool base are connected with bilaterally symmetrical spindles in a sliding mode through a first sliding mechanism, one side, close to each other, of each spindle is connected with a clamping jaw, and the other side of each spindle is connected with a rotating motor; the lathe base with main shaft vertically one side is equipped with rotatory blade disc through the A-frame symmetry of slope, the one end that rotatory blade disc kept away from each other is connected with the tool changing motor, rotatory blade disc passes through second slide mechanism, third slide mechanism and moves on two mutually perpendicular's tracks, has and can implement milling process to the work piece and also can implement lathe work to the work piece when, has further improved turning and milling combined machining center's machining precision, machining efficiency and degree of automation.
Description
Technical Field
The invention relates to the technical field of machining equipment, in particular to an inclined rail type double-spindle turning and milling combined machining center.
Background
A machine tool is an apparatus for cutting a metal workpiece with a tool. The machine tool is provided with a tool clamping device and a workpiece clamping device, and the tool and the workpiece move relatively during cutting. According to the motion states of the cutter and the workpiece, the cutting machining comprises turning machining and milling machining, wherein the turning machining is that the cutter is fixed to rotate the workpiece, and the milling machining is that the workpiece is fixed to rotate the cutter.
The CNC composite machining is to put several different machining processes on the same numerical control machine tool to realize the machining of parts, such as turning, milling, drilling and the like on the same numerical control machine tool, and is also one of the most popular advanced manufacturing technologies in the field of metal cutting machining in recent years. The CNC machine tool with the composite processing capacity has the greatest advantage that the CNC machine tool can realize the processing of various different processes of parts through one-time part clamping, thereby achieving the purposes of reducing machine tools and clamps, removing the transportation and storage between the working procedures, improving the part processing precision, shortening the manufacturing period and saving the operation area, and bringing benefits for users.
Although some existing turning and milling integrated numerical control machining centers in the market can meet the machining requirements of workpieces needing to machine end faces and holes, the existing numerical control machining centers are low in machining precision, machining efficiency and automation degree and need to be further improved.
Disclosure of Invention
The invention provides an inclined rail type double-spindle turning and milling combined machining center aiming at the problems in the prior art, which can not only mill a workpiece, but also turn the workpiece, and further improves the machining precision, the machining efficiency and the automation degree of the turning and milling combined machining center.
In order to solve the technical problems, the invention adopts the following technical scheme:
the inclined rail type double-spindle turning and milling combined machining center comprises a machine tool base, wherein the left side and the right side of the machine tool base are connected with bilaterally symmetrical spindles in a sliding mode through a first sliding mechanism, one sides, close to each other, of the spindles are connected with clamping jaws, and the other sides of the spindles are connected with a rotating motor;
the machine tool base with one side of the main shaft vertical is symmetrically provided with a rotary cutter head through an inclined triangular support, one end of the rotary cutter head, which is far away from each other, is connected with a cutter changing motor, and the rotary cutter head moves on two mutually vertical tracks through a second sliding mechanism and a third sliding mechanism.
Preferably, the spindle is in threaded connection with the first sliding mechanism through a spindle mounting frame, the spindle mounting frame is in matched connection with the spindle, and the first sliding mechanism is arranged on the machine tool base.
Furthermore, the first sliding mechanism comprises a first motor, a first threaded rod, a first sliding rail and a first sliding block, two parallel first sliding rails are arranged in the machine tool base, the first sliding block is connected to the first sliding rails in a sliding manner, and the first sliding block is in threaded connection with the spindle mounting rack; first threaded rod parallel set up in between the first slide rail, first threaded rod pass through first connecting block with spindle erection frame threaded connection, first threaded rod is kept away from spindle erection frame's one end is connected first motor.
Preferably, the rotary cutterhead is in threaded connection with the third sliding mechanism through a cutterhead mounting frame, and the cutterhead mounting frame is in threaded connection with the rotary cutterhead.
Furthermore, the third sliding mechanism is vertically connected with the second sliding mechanism through a connecting plate, the second sliding mechanism is arranged on the triangular support, and the triangular support is arranged on the machine tool base.
Furthermore, the second sliding mechanism comprises a second motor, a second threaded rod, a second sliding rail and a second sliding block, two second sliding rails which are parallel to each other are arranged on the triangular support, the second sliding rail is connected with the second sliding block in a sliding manner, and the second sliding block is in threaded connection with the connecting plate; the second threaded rod is arranged between the second sliding rails in parallel, the second threaded rod is in threaded connection with the connecting plate through a second connecting block, and one end, far away from the connecting plate, of the second threaded rod is connected with the second motor.
Further, the third sliding mechanism comprises a third motor, a third threaded rod, a third sliding rail, a third sliding block and a third sliding rail mounting plate, the third sliding rail mounting plate is vertically connected with the connecting plate through threads, the third sliding rail mounting plate is provided with two parallel third sliding rails, the third sliding rail is connected with the third sliding block in a sliding manner, and the third sliding block is in threaded connection with the middle connecting block; the third threaded rod is arranged between the third sliding rails in parallel, the third threaded rod is in threaded connection with the middle connecting block through a third connecting block, and one end, far away from the connecting plate, of the third threaded rod is connected with the third motor.
Furthermore, the middle connecting block is in threaded connection with the cutter head mounting frame.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention provides an inclined rail type double-spindle turning and milling combined machining center which can be used for milling and turning workpieces;
(2) the two main shafts are oppositely provided with the two cutter heads, so that the two workpieces can be simultaneously processed, the processing time is saved, the processing space is saved, the processing procedures are reduced, and the processing efficiency is improved; compared with clamping at one end, the circular runout error of clamping at two ends is smaller, and the machining precision is relatively higher; the control of the cutter head position, the cutter changing operation and the spindle position is realized through the motor, the operation is convenient, and the automation degree is higher.
Drawings
FIG. 1 is a schematic overall structure diagram of one embodiment of the present invention;
FIG. 2 is a schematic view of a spindle configuration according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of a first sliding mechanism according to an embodiment of the present invention;
FIG. 4 is a schematic view of the connection structure of the tripod, the rotary cutter head and the second sliding mechanism according to an embodiment of the present invention;
fig. 5 is a schematic structural view of a third slide mechanism according to an embodiment of the present invention.
In the figure, 1-a machine tool base, 2-a spindle, 3-a clamping jaw, 4-a rotating motor, 5-a triangular support, 6-a rotating cutter head, 7-a cutter changing motor, 8-a spindle mounting rack, 9-a cutter head mounting rack, 10-a first motor, 11-a first threaded rod, 12-a first sliding rail, 13-a first sliding block, 14-a first connecting block, 15-a second motor, 16-a second threaded rod, 17-a second sliding rail, 18-a second sliding block, 19-a connecting plate, 20-a second connecting block, 21-a third motor, 22-a third threaded rod, 23-a third sliding rail, 24-a third sliding block, 25-a third sliding rail mounting plate, 26-a third connecting block and 27-an intermediate connecting block.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1-5, the invention provides an inclined rail type double-spindle turning and milling combined machining center, which comprises a machine tool base 1, wherein the left side and the right side of the machine tool base 1 are connected with bilaterally symmetrical spindles 2 in a sliding manner through a first sliding mechanism, one sides of the spindles 2, which are close to each other, are connected with clamping jaws 3, and the other sides of the spindles are connected with a rotating motor 4; machine tool base 1 is equipped with rotatory blade disc 6 through the tripod 5 symmetry of slope with main shaft 2 vertically one side, and the one end that rotatory blade disc 6 kept away from each other has tool changing motor 7 through the blade disc hub connection, rotatory blade disc 6 moves on two mutually perpendicular's track through second slide mechanism, third slide mechanism.
When the rotary cutter is used, a workpiece is clamped through the clamping jaw 3, the rotary cutter head 6 clamps a cutter, and when turning is carried out, the rotary motor 4 drives the clamping jaw 3 to rotate so as to drive the workpiece to rotate, so that the turning of the workpiece by the cutter is realized; when milling is carried out, the power tool bit is arranged on the rotary cutter head 6 to keep the workpiece still, so that the milling of the workpiece is realized; when the cutter needs to be switched, the control of the cutter switching is realized by starting the cutter changing motor 7. In addition, by arranging the two movable main shafts 2, the two movable main shafts 2 can be used for respectively clamping two ends of a part, the direction does not need to be manually changed, the workpiece is transposed and clamped on the same equipment, and compared with clamping at one end, the circular runout error clamped at two ends is smaller, and the machining precision is higher; the two main shafts 2 are correspondingly provided with the two rotary cutter heads 6, so that two workpieces can be simultaneously machined, the machining time is saved, the machining space is saved, the machining procedures are reduced, and the machining efficiency is improved; the control of the spindle 2 and the rotary cutter head 6 and the control of the positions of the rotary cutter head 6 and the clamping jaw 3 by the first sliding mechanism, the second sliding mechanism and the third sliding mechanism are realized by utilizing the rotary motor 4 and the tool changing motor 7, the operation is convenient, and the automation degree of the turning and milling combined machining center is improved.
The main shaft 2 is in threaded connection with the first sliding mechanism through a main shaft mounting frame 8, the main shaft mounting frame 8 is in matched connection with the main shaft 2, and the first sliding mechanism is arranged on the machine tool base 1. The first sliding mechanism comprises a first motor 10, a first threaded rod 11, a first sliding rail 12 and a first sliding block 13, two parallel first sliding rails 12 are arranged in the machine tool base 1, the first sliding block 13 is connected to the first sliding rails 12 in a sliding mode, and the first sliding block 13 is in threaded connection with the spindle mounting rack 8; first threaded rod 11 sets up in parallel between first slide rail 12, and first threaded rod 11 passes through first connecting block 14 and 8 threaded connection of spindle erection frame, and first motor 10 is connected to the one end that spindle erection frame 8 was kept away from to first threaded rod 11.
The main shaft 2 is connected with the first sliding mechanism through the main shaft mounting frame 8, the main shaft mounting frame 8 is driven to move through the sliding of the first sliding mechanism, and then the main shaft 2 is driven to move, so that the clamping jaw 3 connected with the main shaft 2 is driven to move. When the clamping device is used, the first motor 10 is started to drive the first threaded rod 11 to move along the direction of the first sliding rail 12, and then the spindle mounting frame 8 in threaded connection with the first threaded rod 11 and the first sliding block 13 is driven to move along the direction of the first sliding rail 12, so that the spindle 2 and the clamping jaw 3 are driven to move along the direction of the first sliding rail 12.
The rotary cutter head 6 is in threaded connection with the third sliding mechanism through a cutter head mounting frame 9, and the cutter head mounting frame 9 is in threaded connection with the rotary cutter head 6. The third sliding mechanism is vertically connected with the second sliding mechanism through a connecting plate 19, the second sliding mechanism is arranged on the triangular support 5, and the triangular support 5 is arranged on the machine tool base 1.
By adopting the technical scheme, the rotary cutter head 6 is connected with the third sliding mechanism through the cutter head mounting frame 9, the third sliding mechanism is used for driving the rotary cutter head 6 to move, the third sliding mechanism is vertically connected with the second sliding mechanism, and then the second sliding mechanism is used for driving the rotary cutter head 6 to move, so that the rotary cutter head 6 can move in two mutually perpendicular directions of the third sliding mechanism and the second sliding mechanism.
The second sliding mechanism comprises a second motor 15, a second threaded rod 16, a second sliding rail 17 and a second sliding block 18, two second sliding rails 17 which are parallel to each other are arranged on the triangular bracket 5, the second sliding rail 17 is connected with the second sliding block 18 in a sliding manner, and the second sliding block 18 is in threaded connection with the connecting plate 19; the second threaded rod 16 is arranged between the second sliding rails 17 in parallel, the second threaded rod 16 is in threaded connection with the connecting plate 19 through the second connecting block 20, and one end, far away from the connecting plate 19, of the second threaded rod 16 is connected with the second motor 15. The second motor 15 drives the second threaded rod 16 to move along the direction of the second slide rail 17, and further drives the connecting plate 19 in threaded connection with the second threaded rod 16 and the second slider 18 to move along the direction of the second slide rail 17.
The third sliding mechanism comprises a third motor 21, a third threaded rod 22, a third sliding rail 23, a third sliding block 24 and a third sliding rail mounting plate 25, the third sliding rail mounting plate 25 is vertically connected with the connecting plate 19 through threads, two third sliding rails 23 which are parallel to each other are arranged on the third sliding rail mounting plate 25, the third sliding rail 23 is connected with the third sliding block 24 in a sliding manner, and the third sliding block 24 is in threaded connection with the middle connecting block 27; the third threaded rod 22 is arranged between the third sliding rails 23 in parallel, the third threaded rod 22 is in threaded connection with the intermediate connecting block 27 through the third connecting block 26, one end, far away from the connecting plate 19, of the third threaded rod 22 is connected with the third motor 21, and the intermediate connecting block 27 is in threaded connection with the cutter head mounting frame 9. The third slide mechanism and the second slide mechanism are connected together by screwing the third slide rail mounting plate 25 to the connecting plate 19. Third slide rail 23, third slider 24, third threaded rod 22, third motor 21 are installed on the third slide rail mounting panel 25, drive third threaded rod 22 through third motor 21 and move along third slide rail direction 23, and then drive with third threaded rod 22, the middle connecting block 27 of third slider 24 threaded connection moves along the direction of third slide rail 23, middle connecting block 27 and blade disc mounting bracket 9 threaded connection, realize then that drive rotatory blade disc 6 moves along the direction of third slide rail 23. And the second sliding mechanism drives the connecting plate 19 to move along the direction of the second sliding rail 17, so as to drive the third sliding mechanism to move along the direction of the second sliding rail 17, thereby driving the rotary cutter head 6 to move along the direction of the second sliding rail 17.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the described embodiments may be made by those skilled in the art without departing from the scope and spirit of the invention as defined by the accompanying claims.
Claims (8)
1. The inclined rail type double-spindle turning and milling combined machining center comprises a machine tool base and is characterized in that the left side and the right side of the machine tool base are connected with bilaterally symmetrical spindles in a sliding mode through a first sliding mechanism, one sides, close to each other, of the spindles are connected with clamping jaws, and the other sides of the spindles are connected with a rotating motor;
the machine tool base with one side of the main shaft vertical is symmetrically provided with a rotary cutter head through an inclined triangular support, one end of the rotary cutter head, which is far away from each other, is connected with a cutter changing motor, and the rotary cutter head moves on two mutually vertical tracks through a second sliding mechanism and a third sliding mechanism.
2. The inclined rail type double-spindle turning and milling combined machining center according to claim 1, wherein the spindle is in threaded connection with the first sliding mechanism through a spindle mounting frame, the spindle mounting frame is in fit connection with the spindle, and the first sliding mechanism is arranged on the machine tool base.
3. The inclined rail type double-spindle turning and milling combined machining center as claimed in claim 2, wherein the first sliding mechanism comprises a first motor, a first threaded rod, a first sliding rail and a first sliding block, two parallel first sliding rails are arranged in the machine tool base, the first sliding block is slidably connected to the first sliding rails, and the first sliding block is in threaded connection with the spindle mounting frame; first threaded rod parallel set up in between the first slide rail, first threaded rod pass through first connecting block with spindle erection frame threaded connection, first threaded rod is kept away from spindle erection frame's one end is connected first motor.
4. The ramp type dual spindle turning and milling machining center according to claim 1, wherein the rotary cutter head is in threaded connection with the third sliding mechanism through a cutter head mounting frame, and the cutter head mounting frame is in threaded connection with the rotary cutter head.
5. The ramp type double-spindle turning and milling combined machining center according to claim 4, wherein the third sliding mechanism is vertically connected with the second sliding mechanism through a connecting plate, the second sliding mechanism is arranged on the triangular support, and the triangular support is arranged on the machine tool base.
6. The inclined rail type double-spindle turning and milling combined machining center as claimed in claim 5, wherein the second sliding mechanism comprises a second motor, a second threaded rod, a second sliding rail and a second sliding block, two second sliding rails parallel to each other are arranged on the triangular support, the second sliding rail is connected with the second sliding block in a sliding manner, and the second sliding block is in threaded connection with the connecting plate; the second threaded rod is arranged between the second sliding rails in parallel, the second threaded rod is in threaded connection with the connecting plate through a second connecting block, and one end, far away from the connecting plate, of the second threaded rod is connected with the second motor.
7. The inclined rail type double-spindle turning and milling combined machining center of claim 5, wherein the third sliding mechanism comprises a third motor, a third threaded rod, a third sliding rail, a third sliding block and a third sliding rail mounting plate, the third sliding rail mounting plate is vertically connected with the connecting plate through threads, two third sliding rails which are parallel to each other are arranged on the third sliding rail mounting plate, the third sliding rail is connected with the third sliding block in a sliding manner, and the third sliding block is connected with an intermediate connecting block through threads; the third threaded rod is arranged between the third sliding rails in parallel, the third threaded rod is in threaded connection with the middle connecting block through a third connecting block, and one end, far away from the connecting plate, of the third threaded rod is connected with the third motor.
8. The ramp type dual spindle turning and milling machining center of claim 7, wherein the intermediate connecting block is threadedly connected to the cutterhead mounting bracket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010269590.3A CN111390650A (en) | 2020-04-08 | 2020-04-08 | Inclined rail type double-spindle turning and milling combined machining center |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010269590.3A CN111390650A (en) | 2020-04-08 | 2020-04-08 | Inclined rail type double-spindle turning and milling combined machining center |
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| CN111390650A true CN111390650A (en) | 2020-07-10 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112846796A (en) * | 2021-01-08 | 2021-05-28 | 台州群发智能科技股份有限公司 | Continuous feeding high-precision double-spindle automatic lathe and mounting method thereof |
| CN113910002A (en) * | 2021-10-25 | 2022-01-11 | 宁波锦华数控机床有限公司 | Machining method of double-spindle and double-Y-axis composite numerical control machine tool |
| CN113910003A (en) * | 2021-10-25 | 2022-01-11 | 宁波锦华数控机床有限公司 | Double-spindle double-Y-axis composite numerical control machine tool |
| CN113977355A (en) * | 2021-11-30 | 2022-01-28 | 湖北新二机床有限公司 | Turning and milling composite numerical control machine tool |
| CN115213690A (en) * | 2022-07-29 | 2022-10-21 | 宁夏宏源长城机床有限公司 | Bilateral symmetry turn-milling machining center |
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| CN112846796A (en) * | 2021-01-08 | 2021-05-28 | 台州群发智能科技股份有限公司 | Continuous feeding high-precision double-spindle automatic lathe and mounting method thereof |
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