CN112828611A - Automatic rotation mechanism-based automatic rotation method for milling power head - Google Patents
Automatic rotation mechanism-based automatic rotation method for milling power head Download PDFInfo
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- CN112828611A CN112828611A CN202110004896.0A CN202110004896A CN112828611A CN 112828611 A CN112828611 A CN 112828611A CN 202110004896 A CN202110004896 A CN 202110004896A CN 112828611 A CN112828611 A CN 112828611A
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- 230000007246 mechanism Effects 0.000 title claims abstract description 102
- 238000003801 milling Methods 0.000 title claims abstract description 88
- 238000000034 method Methods 0.000 title claims abstract description 21
- 230000001360 synchronised effect Effects 0.000 claims description 15
- 239000003921 oil Substances 0.000 description 14
- 239000010720 hydraulic oil Substances 0.000 description 5
- 238000007789 sealing Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 2
- 241001149761 Planera aquatica Species 0.000 description 1
- 230000005540 biological transmission 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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
- B23C9/005—Details or accessories so far as specially adapted to milling machines or cutter milling heads
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Abstract
The invention provides an automatic rotation method of a milling power head based on an automatic rotation mechanism, which comprises the following steps: s10, loosening the auxiliary fastening mechanism between the milling head sliding plate and the beam sliding plate, and then loosening the main fastening mechanism between the rotary shaft sleeve and the beam sliding plate; s20, starting a servo motor, driving the rotary shaft sleeve to rotate by the worm gear structure, driving the milling head sliding plate to rotate to a preset position of a rotary encoder by the rotary shaft sleeve, and stopping the servo motor; s30 the main fastening mechanism and the auxiliary fastening mechanism are sequentially started to fix the milling head sliding plate on the beam sliding plate, and the angle adjustment of the milling head is completed. According to the automatic rotation method of the milling power head based on the automatic rotation mechanism, the automatic adjustment of the deflection angle of the milling head is realized through the worm gear structure, the deflection angle of the milling head can be accurately controlled by the rotation encoder, and the control of the deflection accuracy is improved.
Description
Technical Field
The invention relates to the technical field of automatic rotation of a milling power head, in particular to an automatic rotation method of the milling power head based on an automatic rotation mechanism.
Background
In the prior art in China, the rotation of a milling head of a common planer type milling machine is manually completed, namely, when the milling head is rotated, a wrench is used for loosening a fastening bolt at the rotating surface of a sliding plate of the milling head, then the milling head is manually rotated, and after the milling head is rotated to a required angle, the milling head is manually fastened to complete the rotation action of the milling head, and no product capable of automatically rotating the milling head exists in China at present.
Disclosure of Invention
In order to solve the problems, the invention provides an automatic rotation method of a milling power head based on an automatic rotation mechanism, which realizes the automatic adjustment of the deflection angle of a milling head through a worm gear structure, a rotation encoder can accurately control the deflection angle of the milling head, the control of the deflection precision is improved, and meanwhile, the plane formed by the fastening direction of a milling head sliding plate and a beam sliding plate and the rotatable direction of the milling head sliding plate is mutually vertical, so that the deflection adjustment precision is further improved.
In order to achieve the above purpose, the invention adopts a technical scheme that:
an automatic rotation method of a milling power head based on an automatic rotation mechanism comprises the following steps: s10, loosening the auxiliary fastening mechanism between the milling head sliding plate and the beam sliding plate, and then loosening the main fastening mechanism between the milling head sliding plate and the beam sliding plate, so that the milling head sliding plate and the beam sliding plate are completely loosened; s20, starting a servo motor, driving a rotating shaft sleeve to rotate by a worm gear structure, driving the milling head sliding plate to rotate to a preset position of a rotary encoder by the rotating shaft sleeve, and stopping the servo motor; s30 the main fastening mechanism and the auxiliary fastening mechanism are sequentially started to fix the milling head sliding plate and the beam sliding plate, and the angle adjustment of the milling head is completed.
Furthermore, the plane formed by the fastening direction of the main fastening mechanism and the auxiliary fastening mechanism and the rotatable direction of the milling head sliding plate is mutually vertical.
Further, the automatic swing mechanism includes: the worm and gear structure comprises a worm gear and a worm, the worm gear is accommodated in the first accommodating groove of the cross beam sliding plate, the worm is accommodated in the second accommodating groove of the cross beam sliding plate, and the worm is meshed with the worm gear; one end of the rotary shaft sleeve extends into the first accommodating groove and is connected with the worm wheel through a flat key, and the other end of the rotary shaft sleeve is arranged on the milling head sliding plate; the angle measuring mechanism is connected with the rotating shaft sleeve; the fastening mechanism comprises a main fastening mechanism and an auxiliary fastening mechanism, one end of the main fastening mechanism is connected with the rotary shaft sleeve, and the other end of the main fastening mechanism extends out of the bottom of the first accommodating groove and is arranged on the beam sliding plate; one end of the auxiliary fastening mechanism is connected with the cross beam sliding plate, and the other end of the auxiliary fastening mechanism is connected with the milling head sliding plate.
Further, angle measurement mechanism includes the encoder, the encoder pass through the hold-in range with gyration shaft sleeve is connected.
Furthermore, the main fastening mechanism and the auxiliary fastening mechanism are hydraulic fastening mechanisms, the auxiliary fastening mechanism comprises a T-shaped fastening screw rod, one end of the T-shaped fastening screw rod is arranged in the arc-shaped groove of the cross beam sliding plate, and the other end of the T-shaped fastening screw rod is connected with a piston arranged in a hydraulic cylinder of the milling head sliding plate.
Further, the primary fastening mechanism includes: the locking oil cylinder barrel is arranged on the rotary shaft sleeve, one end of the rotary shaft sleeve is arranged on the milling head sliding plate, the other end of the rotary shaft sleeve is accommodated in the first accommodating groove, and the bottom of the piston rod extending out of the first accommodating groove is arranged on the beam sliding plate through the fastening part; the piston is arranged in the locking oil cylinder barrel, a piston rod is arranged at one end of the piston, which is far away from the milling head sliding plate, the other end of the piston rod extends out of the cross beam sliding plate and is arranged on the cross beam sliding plate through a fastening part, and the piston rod and the piston are internally provided and communicated with the locking oil cylinder barrel; and the butterfly spring is arranged in a closed space formed by the piston rod, the piston and the beam sliding plate.
Further, a bearing seat, a cylindrical thrust roller bearing and a locking nut seat are further arranged between the belleville spring and the beam sliding plate, the bearing seat is arranged between the rotary shaft sleeve and the piston rod, the locking nut seat is arranged on the rotary shaft sleeve through a locking nut, the cylindrical thrust roller bearing is located between the locking nut seat and the bearing seat, and the locking nut is located between the locking nut seat and the beam sliding plate.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the automatic rotation method of the milling power head based on the automatic rotation mechanism, the automatic adjustment of the deflection angle of the milling head is realized through the worm gear structure, the rotation encoder can accurately control the deflection angle of the milling head, the control of the deflection precision is improved, meanwhile, the plane formed by the fastening direction of the milling head sliding plate and the cross beam sliding plate and the rotatable direction of the milling head sliding plate is mutually vertical, the deflection adjustment precision is further improved, the labor cost is reduced, and the use performance of a machine tool is expanded.
Drawings
The technical solution and the advantages of the present invention will be apparent from the following detailed description of the embodiments of the present invention with reference to the accompanying drawings.
Fig. 1 is a flowchart illustrating an automatic rotation method for a milling power head based on an automatic rotation mechanism according to an embodiment of the present invention;
fig. 2 is a front view of an automatic turning mechanism of a milling power head for a gantry milling machine according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken in the direction A A in FIG. 2;
FIG. 4 is a cross-sectional view taken in the direction B B in FIG. 3;
FIG. 5 is a view showing a structure of a hydraulic fastening mechanism for a cutter head slide plate according to an embodiment of the present invention;
FIG. 6 is a front view of an arcuate slot in accordance with an embodiment of the present invention.
Reference numbers in the figures:
the servo-type milling head comprises a beam sliding plate 1, a first accommodating groove 11, a second accommodating groove 12, a third accommodating groove 13, a worm wheel 2, a worm gear 3, a servo motor 31, a worm shaft 32, a rolling bearing 4, a rotary shaft sleeve 5, a flat key 6, a milling head sliding plate 71, a main fastening mechanism 81, a locking oil cylinder barrel 811, a piston rod 812, a piston 813, a hydraulic pipeline 814, a fastening part 815, a combined sealing ring 816, a bearing block 817, a cylindrical thrust roller bearing 818, an O-shaped ring 819, a locking nut 820, a locking nut seat 821, a belleville spring 82, an auxiliary fastening mechanism 82, an arc-shaped groove 823, a first synchronous pulley 91, a second synchronous pulley 92, a synchronous belt 93 and an encoder 94.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment provides an automatic rotation method for a milling power head based on an automatic rotation mechanism, as shown in fig. 1 to 5, the method comprises the following steps: s10 loosens the auxiliary fastening mechanism 82 between the cutter head sliding plate 71 and the beam sliding plate 1, and then loosens the main fastening mechanism 81 between the cutter head sliding plate 71 and the beam sliding plate 1, so that the cutter head sliding plate 71 and the beam sliding plate 1 are completely loosened. S20 starts the servo motor 31, the worm wheel 2 and the worm 3 structure drive the rotary shaft sleeve 5 to rotate, the rotary shaft sleeve 5 drives the milling head sliding plate 71 to rotate to the preset position of the rotary encoder 94, and the servo motor 31 stops. S30, the main fastening mechanism 81 and the auxiliary fastening mechanism 82 are sequentially started to fix the milling head sliding plate 71 and the beam sliding plate 1, and the angle adjustment of the milling head is completed. Wherein, the fastening direction of the main fastening mechanism 81 and the auxiliary fastening mechanism 82 is perpendicular to the plane formed by the rotatable direction of the milling head sliding plate 71.
The step S10 includes: s11 is performed to charge hydraulic oil into the hydraulic cylinder of the auxiliary fastening mechanism 82 to release the fastening of the cutter head slide plate 71 and the beam slide plate 1. S12 is filled with hydraulic oil into the hydraulic cylinder of the main fastening mechanism 81 to completely release the fastening of the cutter head slide plate 71 and the beam slide plate 1.
The automatic slewing mechanism comprises the worm gear structure, the slewing shaft sleeve 5, an angle measuring mechanism and a fastening mechanism, wherein the worm gear structure and the angle measuring mechanism are arranged on the beam sliding plate 1. The rotary shaft sleeve 5 is arranged on the milling head sliding plate 71, and the fastening mechanism is used for fastening the milling head sliding plate 71 and the beam sliding plate 1.
The worm and gear mechanism comprises a worm gear 2 and a worm 3, wherein the worm gear 2 is accommodated in a first accommodating groove 11 of the cross beam sliding plate 1, the worm 3 is accommodated in a second accommodating groove 12 of the cross beam sliding plate 1, and the worm 3 is meshed with the worm gear 2. The rotating shaft sleeve 5 is rotatably arranged in the first accommodating groove 11. The first accommodating groove 11 is communicated with the second accommodating groove 12, one end of the rotating shaft sleeve 5 extends into the first accommodating groove 11 and is connected with the worm wheel 2 through the flat key 6, and the other end of the rotating shaft sleeve 5 is arranged on the milling head sliding plate 71.
The top of the second accommodating groove 12 is provided with a servo motor 31, a worm shaft 32 is further arranged in the second accommodating groove 12, the top end of the worm shaft 32 is connected with an output shaft of the servo motor 31 through a coupler, the lower end of the worm shaft 32 is arranged in the second accommodating groove 12 through a rolling bearing 4, and the worm 3 is arranged on the worm shaft 32.
The angle measuring mechanism is connected with the rotating shaft sleeve 5, the angle measuring mechanism is accommodated in a third accommodating groove 13 of the beam sliding plate 1, and the first accommodating groove 11 is communicated with the third accommodating groove 13. The angle measuring mechanism includes a first synchronous pulley 91, a second synchronous pulley 92, a synchronous belt 93 and an encoder 94, the first synchronous pulley 91 is disposed in the first accommodating groove 11, and the second synchronous pulley 92 is disposed in the third accommodating groove 13. The synchronous belt 93 is located in the first accommodating groove 11 and in the third accommodating groove 13, the synchronous belt 93 is sleeved on the first synchronous pulley 91 and the second synchronous pulley 92, is located in the first accommodating groove 11, the synchronous belt 93 is connected with the rotary shaft sleeve 5, is located in the third accommodating groove 13, the synchronous belt 93 is connected with the encoder 94, and the encoder 94 is arranged in the third accommodating groove 13. The encoder 94 and the servo motor 31 are electrically connected with a control system of the automatic slewing mechanism of the milling power head.
The fastening mechanism comprises a main fastening mechanism 81 and an auxiliary fastening mechanism 82, the rotary shaft sleeve 5 is connected with the milling head sliding plate 71 through a hexagon socket head cap screw, and the rotary shaft sleeve 5 is connected with the beam sliding plate 1 through the main fastening mechanism 81. One end of the main fastening mechanism 81 is connected with the rotating shaft sleeve 5, and the other end of the main fastening mechanism 81 extends out of the bottom of the first accommodating groove 11 and is arranged on the beam sliding plate 1. One end of the auxiliary fastening mechanism 82 is connected with the beam sliding plate 1, and the other end of the auxiliary fastening mechanism 82 is connected with the milling head sliding plate 71.
As shown in fig. 6, the main fastening mechanism 81 and the auxiliary fastening mechanism 82 are hydraulic fastening mechanisms, the auxiliary fastening mechanism 82 includes a T-shaped fastening screw, one end of the T-shaped fastening screw is disposed in the arc-shaped groove 823 of the cross beam sliding plate 1, and the other end of the T-shaped fastening screw is connected to a piston disposed in a hydraulic cylinder of the milling head sliding plate 71.
The main fastening mechanism 81 comprises a locking oil cylinder barrel 811, a piston 813 and a belleville spring 822, the locking oil cylinder barrel 811 is arranged on the rotary shaft sleeve 5, the rotary shaft sleeve 5 is arranged on the milling head sliding plate 71, and in order to ensure the fastening stability, the rotary shaft sleeve 5 and the tightening oil cylinder barrel 811 are integrally formed. The piston 813 is arranged in the locking oil cylinder barrel 811, one end of the piston 813, which is far away from the milling head sliding plate 71, is provided with a piston rod 812, the other end of the piston rod 812 extends out of the beam sliding plate 1 and is arranged on the beam sliding plate 1 through a fastening component 815, hydraulic pipelines 814 are arranged in the piston rod 812 and the piston 813, and the hydraulic pipelines 814 sequentially penetrate through the piston rod 812 and the piston 813 to be communicated with the locking oil cylinder barrel 811. The belleville spring 822 is arranged in a closed space formed by the piston rod 812, the piston 813 and the beam sliding plate 1.
The combined sealing ring 816 is arranged at the contact part of the piston 813 and the locking oil cylinder barrel 811, and the combined sealing ring 816 can improve the sealing performance of oil pressure, prevent oil leakage and improve the transmission efficiency.
A bearing seat 817, a cylindrical roller thrust bearing 818 and a locking nut 821 are further disposed between the belleville spring 822 and the beam sliding plate 1, the bearing seat 817 is disposed between the rotary shaft sleeve 5 and the piston rod 812, the cylindrical roller thrust bearing 821 is disposed on the rotary shaft sleeve 5 through a locking nut 820, the cylindrical roller thrust bearing 818 is disposed between the cylindrical roller thrust bearing 821 and the bearing seat 817, and the locking nut 820 is disposed between the cylindrical roller thrust bearing 821 and the beam sliding plate 1. O-rings 819 are arranged between the bearing seat 817 and the rotary shaft sleeve 5 and between the bearing seat 817 and the piston rod 812.
In use, the auxiliary fastening mechanism 82 is firstly loosened to loosen the milling head sliding plate 71 and the beam sliding plate 1. Then, hydraulic oil is input into the locking oil cylinder barrel 811 through the hydraulic pipeline 814, and as the piston rod 812 is fixed on the beam sliding plate 1 and is not moved, the rotating shaft sleeve 5 is pushed to move in the direction away from the beam sliding plate 1 under the pressure of the hydraulic oil, and the belleville spring 822 is compressed, so that a certain gap is generated between the milling head sliding plate 71 and the beam sliding plate 1, and the milling head sliding plate 71 and the beam sliding plate 1 are completely separated.
Then the servo motor 31 rotates, the encoder 94 starts counting, and when the encoder 94 detects that the preset deflection angle is reached, the servo motor 31 stops rotating. And sequentially fastening the main fastening mechanism 81 and the auxiliary fastening mechanism 82, fastening the rotary shaft sleeve 5 with the beam sliding plate 1 and fastening the milling head sliding plate 71 with the beam sliding plate 1, and finishing the adjustment of the cutting angle of the milling head. The T-shaped fastening screw rod is simultaneously adjusted to the position in the arc-shaped groove 823 in the rotating process, and the direction of the subsequent fastening force is ensured. The main fastening mechanism 81 is fastened by removing the hydraulic oil in the locking oil cylinder 811, and in the process of resetting the belleville spring 822, the rotary shaft sleeve 5 is pulled to move towards the direction close to the beam sliding plate 1, so that the milling head sliding plate 71 and the beam sliding plate 1 are tightly pressed together. Fastening is achieved.
The above description is only an exemplary embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes that are transformed by the content of the present specification and the attached drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A milling power head automatic rotation method based on an automatic rotation mechanism is characterized by comprising the following steps:
s10, loosening the auxiliary fastening mechanism between the milling head sliding plate and the beam sliding plate, and then loosening the main fastening mechanism between the milling head sliding plate and the beam sliding plate, so that the milling head sliding plate and the beam sliding plate are completely loosened;
s20, starting a servo motor, driving a rotating shaft sleeve to rotate by a worm gear structure, driving the milling head sliding plate to rotate to a preset position of a rotary encoder by the rotating shaft sleeve, and stopping the servo motor;
s30 the main fastening mechanism and the auxiliary fastening mechanism are sequentially started to fix the milling head sliding plate and the beam sliding plate, and the angle adjustment of the milling head is completed.
2. The automatic slewing method for the milling power head based on the automatic slewing mechanism as claimed in claim 1, wherein a plane formed by a fastening direction of the main fastening mechanism and the auxiliary fastening mechanism and a rotatable direction of the milling head sliding plate is perpendicular to each other.
3. The automatic slewing method for the milling power head based on the automatic slewing mechanism as claimed in claim 1, wherein the automatic slewing mechanism comprises:
the worm and gear structure comprises a worm gear and a worm, the worm gear is accommodated in the first accommodating groove of the cross beam sliding plate, the worm is accommodated in the second accommodating groove of the cross beam sliding plate, and the worm is meshed with the worm gear;
one end of the rotary shaft sleeve extends into the first accommodating groove and is connected with the worm wheel through a flat key, and the other end of the rotary shaft sleeve is arranged on the milling head sliding plate;
the angle measuring mechanism is connected with the rotating shaft sleeve;
the fastening mechanism comprises a main fastening mechanism and an auxiliary fastening mechanism, one end of the main fastening mechanism is connected with the rotary shaft sleeve, and the other end of the main fastening mechanism extends out of the bottom of the first accommodating groove and is arranged on the beam sliding plate; one end of the auxiliary fastening mechanism is connected with the cross beam sliding plate, and the other end of the auxiliary fastening mechanism is connected with the milling head sliding plate.
4. The automatic slewing mechanism-based milling power head automatic slewing method according to claim 3, wherein the angle measuring mechanism comprises an encoder, and the encoder is connected with the slewing shaft sleeve through a synchronous belt.
5. The automatic slewing method for the milling power head based on the automatic slewing mechanism according to claim 3, wherein the main fastening mechanism and the auxiliary fastening mechanism are hydraulic fastening mechanisms, the auxiliary fastening mechanism comprises a T-shaped fastening screw, one end of the T-shaped fastening screw is arranged in the arc-shaped groove of the cross beam sliding plate, and the other end of the T-shaped fastening screw is connected with a piston arranged in a hydraulic cylinder of the milling head sliding plate.
6. The automatic slewing mechanism-based milling power head automatic slewing method as claimed in claim 3, wherein the main fastening mechanism comprises:
the locking oil cylinder barrel is arranged on the rotary shaft sleeve, one end of the rotary shaft sleeve is arranged on the milling head sliding plate, the other end of the rotary shaft sleeve is accommodated in the first accommodating groove, and the bottom of the piston rod extending out of the first accommodating groove is arranged on the beam sliding plate through the fastening part;
the piston is arranged in the locking oil cylinder barrel, a piston rod is arranged at one end of the piston, which is far away from the milling head sliding plate, the other end of the piston rod extends out of the cross beam sliding plate and is arranged on the cross beam sliding plate through a fastening part, and the piston rod and the piston are internally provided and communicated with the locking oil cylinder barrel;
and the butterfly spring is arranged in a closed space formed by the piston rod, the piston and the beam sliding plate.
7. The automatic rotation method of the milling power head based on the automatic rotation mechanism as claimed in claim 6, wherein a bearing seat, a cylindrical roller thrust bearing and a nut locking seat are further disposed between the belleville spring and the cross beam sliding plate, the bearing seat is disposed between the rotation shaft sleeve and the piston rod, the nut locking seat is disposed on the rotation shaft sleeve through a nut locking, the cylindrical roller thrust bearing is disposed between the nut locking seat and the bearing seat, and the nut locking is disposed between the nut locking seat and the cross beam sliding plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110004896.0A CN112828611B (en) | 2021-01-04 | 2021-01-04 | Automatic rotation mechanism-based automatic rotation method for milling power head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110004896.0A CN112828611B (en) | 2021-01-04 | 2021-01-04 | Automatic rotation mechanism-based automatic rotation method for milling power head |
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| CN112828611A true CN112828611A (en) | 2021-05-25 |
| CN112828611B CN112828611B (en) | 2022-03-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114273691A (en) * | 2021-12-08 | 2022-04-05 | 济南二机床集团有限公司 | Be used for frog processing angle automatic adjustment unit head |
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| CN111730144A (en) * | 2020-07-20 | 2020-10-02 | 浙江日创机电科技有限公司 | Internal gear rotary milling machine |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114273691A (en) * | 2021-12-08 | 2022-04-05 | 济南二机床集团有限公司 | Be used for frog processing angle automatic adjustment unit head |
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Denomination of invention: An automatic turning method of milling power head based on automatic turning mechanism Effective date of registration: 20220519 Granted publication date: 20220304 Pledgee: Jiangsu Rugao Rural Commercial Bank Co.,Ltd. Jiuhua sub branch Pledgor: NANTONG YONG CHANG CNC MACHINERY TECHNOLOGY Co.,Ltd. Registration number: Y2022320010149 |
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Effective date of registration: 20240807 Address after: Room 4019, Building 3, Jiangcheng R&D Park, No. 1088 Jiangcheng Road, Sutong Technology Industrial Park, Nantong City, Jiangsu Province, 226000 (CZ) Patentee after: Yongchang Intelligent Equipment (Nantong) Co.,Ltd. Country or region after: China Address before: 226500 No.58, jingsan Road, Jiuhua Town, Nantong City, Jiangsu Province Patentee before: NANTONG YONG CHANG CNC MACHINERY TECHNOLOGY Co.,Ltd. Country or region before: China |
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