CN115805441A - Multi-machine combined machining device for machining winding drum - Google Patents
Multi-machine combined machining device for machining winding drum Download PDFInfo
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- CN115805441A CN115805441A CN202310038975.2A CN202310038975A CN115805441A CN 115805441 A CN115805441 A CN 115805441A CN 202310038975 A CN202310038975 A CN 202310038975A CN 115805441 A CN115805441 A CN 115805441A
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- 238000004804 winding Methods 0.000 title claims abstract description 39
- 238000003754 machining Methods 0.000 title claims abstract description 23
- 238000003801 milling Methods 0.000 claims abstract description 77
- 238000005553 drilling Methods 0.000 claims description 32
- 230000002457 bidirectional effect Effects 0.000 claims description 11
- 230000008859 change Effects 0.000 claims description 4
- 230000007306 turnover Effects 0.000 claims description 4
- 230000005012 migration Effects 0.000 claims 3
- 238000013508 migration Methods 0.000 claims 3
- 238000005452 bending Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000008569 process Effects 0.000 abstract description 8
- WSNMPAVSZJSIMT-UHFFFAOYSA-N COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 Chemical compound COc1c(C)c2COC(=O)c2c(O)c1CC(O)C1(C)CCC(=O)O1 WSNMPAVSZJSIMT-UHFFFAOYSA-N 0.000 description 16
- 238000010079 rubber tapping Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a multi-machine combined machining device for machining a winding drum, which comprises a horizontal rotary flat milling tool, a rotary supporting tool and a horizontal flat milling tool; the rotary supporting tool is provided with two groups of supporting drums to be processed; the horizontal rotary flat milling tool and the horizontal flat milling tool are respectively and correspondingly positioned on two sides of the two groups of rotary supporting tools; the horizontal rotary flat milling tool comprises a Z-axis lifting structure I and a workbench, wherein the Z-axis lifting structure I drives the workbench to lift, and a machine head mounting seat is connected to one end of a groove opening of the workbench in a rotating mode. The invention solves the trouble that the machine tool needs to be replaced by once hoisting during the processing in the prior art, optimizes the traditional processing mode of the drum shaft and the flange plate, improves the processing efficiency of the drum, and can be used in parallel or used independently to process workpieces with different requirements so as to meet different use situations.
Description
Technical Field
The invention relates to the technical field of reel processing equipment, in particular to a multi-machine combined processing device for reel processing.
Background
With the development of the manufacturing industry of universal cranes in China, the product specification is getting larger, the hoisting capacity of the cranes is also increasing continuously, and the specification of a winding drum serving as a core component of a hoisting mechanism is also getting larger. The working hours of the winding drum processing are also gradually increased, the traditional processing enterprises still manually control the machine tool to process one end of the winding drum and then perform alternate hoisting process to process the other end face, if the winding drum processing of a large non-standard structure is met, the non-standard part of the winding drum is processed by large equipment such as a planer type milling machine, potential safety hazards exist in the processing process, and the winding drum processing efficiency is low.
Disclosure of Invention
The invention aims to overcome the technical problems in the prior art, provides a multi-machine combined machining device for machining a winding drum, solves the problem that a machine tool needs to be replaced by one-time hoisting during machining in the prior art, optimizes the traditional machining mode of a winding drum shaft and a flange plate, improves the machining efficiency of the winding drum, can be used in parallel by a horizontal rotary flat milling tool and a horizontal flat milling tool, can also be used for machining workpieces with different requirements independently, meets different use conditions, and can effectively solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a multi-machine combined machining device for machining a winding drum comprises a horizontal rotary flat milling tool, a rotary supporting tool and a horizontal flat milling tool; the rotary supporting tool is provided with two groups of rotating supporting tools for supporting the winding drum to be processed; the horizontal rotary flat milling tool and the horizontal flat milling tool are respectively and correspondingly positioned on two sides of the two groups of rotary supporting tools;
the horizontal rotary flat milling tool comprises a Z-axis lifting structure I and a workbench, the Z-axis lifting structure I drives the workbench to lift, a machine head mounting seat is connected in a notch at one end of the workbench in a rotating mode, a milling machine head used for milling the end face of the winding drum is mounted on one side of the machine head mounting seat, a drilling machine head used for drilling the end face of the winding drum is mounted on the other side of the machine head mounting seat, and the direction of a main shaft of the milling machine head is opposite to the direction of a main shaft of the drilling machine head; the outer wall of the workbench is also provided with a servo motor which is used for driving the machine head mounting seat to turn over and enabling the milling machine head and the drilling machine head to change positions;
the rotary supporting tool comprises two oppositely arranged supporting tools, each supporting tool comprises a shell, and two oppositely arranged supporting wheel structures are arranged at the upper part of the shell; the inside of the shell is also rotatably connected with a bidirectional screw rod, two reverse thread sections of the bidirectional screw rod are correspondingly connected with two supporting wheel structures through screw rod nut seats, and the end part of the shell is provided with a distance adjusting motor for driving the bidirectional screw rod to rotate.
Preferably, the Z-axis lifting structure comprises a rack and a servo motor, a vertically arranged screw rod is rotatably connected to the inner side of the rack, the servo motor is installed on the upper portion of the rack and drives the screw rod to rotate, the workbench is in sliding fit with the rack, and the screw rod is connected with the workbench through a screw rod nut seat.
Preferably, the horizontal rotary flat milling tool further comprises a first horizontal moving structure, the first horizontal moving structure drives the first Z-axis lifting structure to move, and the first horizontal moving structure is a ball screw kinematic pair driven by a servo motor.
Preferably, the machine head mounting seat is matched with a notch of the workbench through a rotating shaft, and the rotating shaft is driven to rotate by the servo motor; the workbench is also provided with an angle encoder for detecting the rotation angle of the rotating shaft.
Preferably, two support tools are installed on the base platform and are in sliding fit with the base platform.
Preferably, the workpiece fixing device further comprises at least one workpiece fixing device for fixing the winding drum to be processed, the workpiece fixing device comprises two oppositely arranged tensioning cylinders, the telescopic ends of the two tensioning cylinders are correspondingly connected with the two ends of a tensioning belt, and the tensioning belt is provided with an arc-shaped bent part and is in contact with the outer wall of the winding drum to be processed.
Preferably, the end part of the tensioning belt is in pin joint with the telescopic end of the tensioning cylinder through a pin shaft.
Preferably, the horizontal type flat milling tool comprises a Z-axis lifting structure II and a horizontal moving structure II, the horizontal moving structure II drives the Z-axis lifting structure II to move, the horizontal moving structure II is a ball screw kinematic pair driven by a servo motor, the Z-axis lifting structure II comprises a vertical rack, a screw rod and a servo motor, the servo motor is installed at the top of the vertical rack, the vertical rack is in sliding fit with a lifting frame, the lifting frame is matched with the screw rod through a screw rod nut seat, the servo motor drives the screw rod to rotate to realize lifting of the lifting frame, and drilling and milling machine heads are arranged on two sides of the upper portion of the lifting frame.
Preferably, the drilling and milling head comprises a speed reducing motor, the speed reducing motor drives the drill bit or the milling cutter to move, and the drilling and milling head further comprises an electric cylinder, and the electric cylinder pushes the speed reducing motor to move and realize feeding of the drill bit or the milling cutter.
Preferably, the support wheel structure comprises a support arm, and the support arm is provided with a support wheel.
Compared with the prior art, the invention has the beneficial effects that: the positioning and fixing of the winding drum to be processed are realized through the rotary supporting tool and the workpiece fixing device, and the winding drum fixing device is suitable for winding drums with different diameters and is firm in fixing; the servo motor of the horizontal rotary flat milling tool drives the machine head mounting seat to turn over, so that the milling machine head and the drilling machine head can change positions, the drilling and tapping of the central hole of the end surface of the drum shaft can be realized without moving the drum after the end surface of the drum shaft is milled, the processing contents such as milling of the end surface of the drum shaft, drilling of the central hole of the end surface of the shaft, tapping and the like are completed under the condition of one-time clamping, and the trouble that a machine tool needs to be replaced through one-time hoisting during the processing period in the prior art is solved; in addition, the horizontal rotary flat milling tool can complete rotation at any angle within +/-180 degrees, plane milling and drilling, oblique plane processing of some non-standard structures and non-standard workpieces can be completed, the horizontal flat milling tool can perform surface milling and drilling and tapping processes on the end face of the winding drum shaft, the traditional processing mode of the winding drum shaft and the flange plate is optimized, the processing efficiency is improved, the winding drum can be rapidly processed, labor cost and potential safety hazards in the processing process are reduced, the horizontal rotary flat milling tool and the horizontal flat milling tool can be used in parallel, workpieces with different requirements can be independently processed, and different use situations are met.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a horizontal rotary face milling tool of the present invention;
FIG. 3 is a schematic view of a partial structure of the horizontal rotary milling tool of the present invention;
FIG. 4 is a schematic structural view of the horizontal type flat milling tool of the present invention;
fig. 5 is a schematic structural view of the rotary supporting tool and the workpiece fixing device of the present invention.
In the figure:
1, a horizontal rotary flat milling tool, a 1.1Z shaft lifting structure I, a 1.2 workbench, a 1.3 angle encoder, a 1.4 milling machine head, a 1.5 machine head mounting seat, a 1.6 servo motor, a 1.7 drilling machine head and a 1.8 horizontal moving structure I;
2, winding drums to be processed;
3, rotating a supporting tool, 3.1 a shell and 3.2 a supporting wheel structure;
4, a base table;
5, a workpiece fixing device, 5.1 tensioning cylinders, 5.2 pin shafts and 5.3 tensioning belts;
6 horizontal flat milling tools, a 6.1Z shaft lifting structure II, a 6.2 drilling and milling machine head and a 6.3 horizontal moving structure II.
Detailed Description
In the following description, the technical solutions of the present invention will be described with reference to the drawings of the embodiments of the present invention, and it should be understood that, if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "front", "rear", "left", "right", etc., it is only corresponding to the drawings of the present invention, and for convenience of describing the present invention, it is not necessary to indicate or imply that the indicated devices or elements have a specific orientation:
referring to fig. 1-5, the present invention provides a technical solution: a multi-machine combined machining device for machining a winding drum comprises a horizontal rotary flat milling tool 1, a rotary supporting tool 3 and a horizontal flat milling tool 6; the rotary supporting tool 3 is provided with two groups for supporting the winding drum 2 to be processed; the horizontal rotary flat milling tool 1 and the horizontal flat milling tool 6 are respectively and correspondingly positioned at two sides of the two groups of rotary supporting tools 3;
as shown in fig. 2, the horizontal rotary flat milling tool 1 comprises a Z-axis lifting structure 1.1 and a workbench 1.2, the Z-axis lifting structure 1.1 drives the workbench 1.2 to lift, a head mounting seat 1.5 is rotatably connected in a notch at one end of the workbench 1.2, a milling head 1.4 for milling the end face of the winding drum is mounted on one side of the head mounting seat 1.5, a drilling head 1.7 for drilling the end face of the winding drum is mounted on the other side of the head mounting seat 1.5, and the direction of a main shaft of the milling head 1.4 is opposite to that of the main shaft of the drilling head 1.7; the outer wall of the workbench 1.2 is also provided with a servo motor 1.6 which is used for driving the machine head mounting seat 1.5 to turn over and enabling the milling machine head 1.4 and the drilling machine head 1.7 to change positions; when the structure is used, the to-be-processed reel 2 is fixed at a proper position, the head mounting seat 1.5 is driven to rotate through the servo motor 1.6, the milling machine head 1.4 and the drilling machine head 1.7 can be turned over, the reel can be drilled and tapped in the central hole of the end face of the reel shaft without moving the reel after the end face of the reel shaft is milled, the milling of the end face of the reel shaft and the drilling, tapping and other processing contents of the central hole of the end face of the reel shaft are finished under the condition of one-time clamping, and the trouble that a machine tool needs to be replaced through one-time hoisting in the processing period in the prior art is solved;
it should be noted that the servo motor 1.6 can drive the head mounting base 1.5 to rotate within +/-180 degrees at any angle, so as to realize plane milling and drilling, thereby finishing the inclined plane processing of some non-standard structures and non-standard workpieces, processing workpieces with different requirements, meeting different use conditions, achieving multiple purposes of one machine and strong applicability;
as shown in fig. 4, the rotary supporting tool 3 includes two supporting tools arranged oppositely, the two supporting tools are mounted on the base station 4, and the supporting tools are in sliding fit with the base station 4, so that the supporting tools can be moved, the distance between the two supporting tools can be changed, and the rotary supporting tool is suitable for winding drums with different lengths, each supporting tool includes a housing 3.1, two supporting wheel structures 3.2 arranged oppositely are arranged on the upper portion of the housing 3.1, each supporting wheel structure 3.2 includes a supporting arm, and the supporting arms are provided with supporting wheels; a bidirectional screw rod is rotatably connected inside the shell 3.1, two reverse thread sections of the bidirectional screw rod are correspondingly connected with the two supporting wheel structures 3.2 through screw rod nut seats, a distance adjusting motor for driving the bidirectional screw rod to rotate is arranged at the end part of the shell 3.1, the bidirectional screw rod is driven to rotate through the distance adjusting motor, and the two supporting wheel structures 3.2 are driven to be close to or far away by the bidirectional screw rod, so that winding drums with different diameters can be supported in a suitable manner;
further, the Z-axis lifting structure I1.1 comprises a rack and a servo motor, a vertically arranged screw rod is rotatably connected to the inner side of the rack, the servo motor is mounted at the upper part of the rack and drives the screw rod to rotate, the workbench 1.2 is in sliding fit with the rack, the screw rod is connected with the workbench 1.2 through a screw rod nut seat, the servo motor drives the screw rod to rotate, and the screw rod drives the workbench 1.2 to lift through the screw rod nut seat;
further, the horizontal rotary flat milling tool 1 further comprises a horizontal moving structure I1.8, the horizontal moving structure I1.8 drives the Z-axis lifting structure I1.1 to move, the horizontal moving structure I1.8 is a ball screw kinematic pair driven by a servo motor, and the two-dimensional plane motion of the workbench 1.2 can be realized through the arrangement of the horizontal moving structure I1.8 and the Z-axis lifting structure I1.1;
further, the machine head mounting seat 1.5 is matched with a notch of the workbench 1.2 through a rotating shaft, and the servo motor 1.6 drives the rotating shaft to rotate; the workbench 1.2 is also provided with an angle encoder 1.3 for detecting the rotation angle of the rotation shaft, and the rotation angle of the rotation shaft is detected in real time through the angle encoder 1.3, so that the real-time detection of the turning angle of the machine head mounting seat 1.5 is realized, and the accuracy of the rotation angle of the machine head mounting seat 1.5 is improved;
on the basis of the above embodiment, the device further comprises at least one workpiece fixing device 5 for fixing the winding drum 2 to be processed, wherein the workpiece fixing device 5 comprises two oppositely arranged tensioning cylinders 5.1, the telescopic ends of the two tensioning cylinders 5.1 are correspondingly connected with the two ends of a tensioning belt 5.3, and the tensioning belt 5.3 has an arc-shaped bent part and is in contact with the outer wall of the winding drum 2 to be processed; the end part of the tensioning belt 5.3 is in pin joint with the telescopic end of the tensioning cylinder 5.1 through a pin shaft 5.2; through the action of the two tensioning cylinders 5.1, the tensioning cylinders 5.1 pull the tensioning belt 5.3, and the tensioning belt 5.3 fastens the winding drum, so that the movement dislocation in the processing process is avoided;
in addition, the horizontal type flat milling tool 6 comprises a Z-axis lifting structure II 6.1 and a horizontal moving structure II 6.3, the horizontal moving structure II 6.3 drives the Z-axis lifting structure II 6.1 to move, the horizontal moving structure II 6.3 is a ball screw kinematic pair driven by a servo motor, the Z-axis lifting structure II 6.1 comprises a vertical rack, a screw rod and a servo motor, the servo motor is installed at the top of the vertical rack, the vertical rack is in sliding fit with a lifting frame, the lifting frame is matched with the screw rod through a screw rod nut seat, the servo motor drives the screw rod to rotate to realize lifting of the lifting frame, and drilling and milling machine heads 6.2 are arranged on two sides of the upper part of the lifting frame; the drilling and milling machine head 6.2 comprises a speed reducing motor which drives a drill bit or a milling cutter to act, the drilling and milling machine head 6.2 further comprises an electric cylinder which pushes the speed reducing motor to move and realize the feeding of the drill bit or the milling cutter, and the two-dimensional plane motion of the two drilling and milling machine heads 6.2 is realized through a Z-axis lifting structure II 6.1 and a horizontal moving structure II 6.3, so that the end face drilling and milling processing is realized.
The invention is not described in detail in the prior art, and it is apparent to a person skilled in the art that the invention is not limited to details of the above-described exemplary embodiments, but that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the scope of the claims concerned.
Claims (10)
1. The utility model provides a multimachine combination processingequipment is used in reel processing which characterized in that: the device comprises a horizontal rotary flat milling tool (1), a rotary supporting tool (3) and a horizontal flat milling tool (6); the rotary supporting tool (3) is provided with two groups for supporting the winding drum (2) to be processed; the horizontal rotary flat milling tool (1) and the horizontal flat milling tool (6) are respectively and correspondingly positioned on two sides of the two groups of rotary supporting tools (3);
the horizontal rotary flat milling tool (1) comprises a Z-axis lifting structure I (1.1) and a workbench (1.2), the Z-axis lifting structure I (1.1) drives the workbench (1.2) to lift, a machine head mounting seat (1.5) is rotationally connected in a notch at one end of the workbench (1.2), a milling machine head (1.4) used for milling the end face of a winding drum is mounted on one side of the machine head mounting seat (1.5), a drilling machine head (1.7) used for drilling the end face of the winding drum is mounted on the other side of the machine head mounting seat (1.5), and the direction of a main shaft of the milling machine head (1.4) is opposite to the direction of a main shaft of the drilling machine head (1.7); the outer wall of the workbench (1.2) is also provided with a servo motor (1.6) for driving the machine head mounting seat (1.5) to turn over and enabling the milling machine head (1.4) and the drilling machine head (1.7) to change positions;
the rotary supporting tool (3) comprises two supporting tools which are arranged oppositely, each supporting tool comprises a shell (3.1), and two supporting wheel structures (3.2) which are arranged oppositely are arranged at the upper part of the shell (3.1); the inside of the shell (3.1) is also rotatably connected with a bidirectional screw rod, two reverse thread sections of the bidirectional screw rod are correspondingly connected with the two supporting wheel structures (3.2) through screw rod nut seats, and the end part of the shell (3.1) is provided with a distance adjusting motor for driving the bidirectional screw rod to rotate.
2. The multi-unit machining device for roll processing according to claim 1, wherein: the Z-axis lifting structure I (1.1) comprises a rack and a servo motor, a vertically arranged screw rod is rotatably connected to the inner side of the rack, the servo motor is installed on the upper portion of the rack and drives the screw rod to rotate, the workbench (1.2) is in sliding fit with the rack, and the screw rod is connected with the workbench (1.2) through a screw rod nut seat.
3. The multi-unit machining device for roll processing according to claim 1, wherein: the horizontal rotary flat milling tool (1) further comprises a first horizontal moving structure (1.8), the first horizontal moving structure (1.8) drives the first Z-axis lifting structure (1.1) to move, and the first horizontal moving structure (1.8) is a ball screw kinematic pair driven by a servo motor.
4. The multi-unit machining device for roll processing according to claim 1, wherein: the machine head mounting seat (1.5) is matched with a notch of the workbench (1.2) through a rotating shaft, and the rotating shaft is driven to rotate by the servo motor (1.6); the workbench (1.2) is also provided with an angle encoder (1.3) for detecting the rotation angle of the rotating shaft.
5. The multi-unit machining device for roll processing according to claim 1, wherein: the two supporting tools are installed on the base platform (4) and are in sliding fit with the base platform (4).
6. A multi-unit combined processing apparatus for processing roll as claimed in claim 1, wherein: the device is characterized by further comprising at least one workpiece fixing device (5) used for fixing the winding drum (2) to be processed, wherein the workpiece fixing device (5) comprises two oppositely arranged tensioning cylinders (5.1), the telescopic ends of the two tensioning cylinders (5.1) are correspondingly connected with the two ends of a tensioning belt (5.3), and the tensioning belt (5.3) is provided with an arc-shaped bending part and is in contact with the outer wall of the winding drum (2) to be processed.
7. A multi-unit processing apparatus for processing reels as claimed in claim 6, further comprising: the end part of the tensioning belt (5.3) is in pin joint with the telescopic end of the tensioning cylinder (5.1) through a pin shaft (5.2).
8. The multi-unit machining device for roll processing according to claim 1, wherein: horizontal flush milling frock (6) include two (6.1) of Z axle elevation structure and two (6.3) of horizontal migration structure, two (6.3) drive two (6.1) of Z axle elevation structure of horizontal migration structure remove, two (6.3) of horizontal migration structure are the ball screw motion pair by servo motor drive, two (6.1) of Z axle elevation structure include vertical frame, lead screw and servo motor, servo motor installs the top in vertical frame, vertical frame sliding fit has the crane, the crane passes through the cooperation of lead screw nut seat with the lead screw, the rotatory lift that realizes the crane of servo motor drive lead screw, the upper portion both sides of crane all are equipped with and bore milling aircraft nose (6.2).
9. The multi-unit machining device for roll processing according to claim 8, wherein: the drilling and milling machine head (6.2) comprises a speed reducing motor which drives a drill bit or a milling cutter to move, and the drilling and milling machine head (6.2) further comprises an electric cylinder which pushes the speed reducing motor to move and realize the feeding of the drill bit or the milling cutter.
10. The multi-unit machining device for roll processing according to claim 1, wherein: the supporting wheel structure (3.2) comprises a supporting arm, and the supporting arm is provided with a supporting wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310038975.2A CN115805441A (en) | 2023-01-12 | 2023-01-12 | Multi-machine combined machining device for machining winding drum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310038975.2A CN115805441A (en) | 2023-01-12 | 2023-01-12 | Multi-machine combined machining device for machining winding drum |
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| Publication Number | Publication Date |
|---|---|
| CN115805441A true CN115805441A (en) | 2023-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310038975.2A Pending CN115805441A (en) | 2023-01-12 | 2023-01-12 | Multi-machine combined machining device for machining winding drum |
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| CN (1) | CN115805441A (en) |
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| CN217452928U (en) * | 2022-05-30 | 2022-09-20 | 广东利工数控科技有限公司 | Horizontal drilling and milling composite machine tool |
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- 2023-01-12 CN CN202310038975.2A patent/CN115805441A/en active Pending
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|---|---|---|---|---|
| CN204912965U (en) * | 2015-08-13 | 2015-12-30 | 山西三元炭素有限责任公司 | Horizontal lathe of screw thread hole is milled simultaneously at large -scale cylinder work piece both ends |
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