CN110653392A - Anti-skewing and aperture-adjustable punching device and punching method for gear machining - Google Patents
Anti-skewing and aperture-adjustable punching device and punching method for gear machining Download PDFInfo
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- CN110653392A CN110653392A CN201911023310.4A CN201911023310A CN110653392A CN 110653392 A CN110653392 A CN 110653392A CN 201911023310 A CN201911023310 A CN 201911023310A CN 110653392 A CN110653392 A CN 110653392A
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- adjusting
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- 238000004080 punching Methods 0.000 title claims abstract description 37
- 238000003754 machining Methods 0.000 title claims abstract description 20
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005553 drilling Methods 0.000 claims abstract description 34
- 238000010009 beating Methods 0.000 claims abstract description 3
- 238000004140 cleaning Methods 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 238000013459 approach Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B41/00—Boring or drilling machines or devices specially adapted for particular work; Accessories specially adapted therefor
-
- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0042—Devices for removing chips
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
-
- 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
- B23Q5/36—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission in which a servomotor forms an essential element
-
- 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
- B23Q5/38—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously
- B23Q5/40—Feeding other members supporting tools or work, e.g. saddles, tool-slides, through mechanical transmission feeding continuously by feed shaft, e.g. lead screw
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
Abstract
The invention discloses a punching device and a punching method for gear machining, wherein the punching device comprises a base plate, a belt pulley mechanism, a rotating motor and a placement platform, wherein the bottom of the base plate is provided with a servo motor, the belt pulley mechanism is arranged on the outer side of a screw rod, the rotating motor is arranged on the upper end surface of a top plate, movable grooves are reserved at two ends of the top plate, the side of an adjusting rod is provided with a locking bolt, the bottom of the adjusting rod is connected with a guide block, the upper end surface of the base plate is fixedly provided with a fixing plate, a movable rod penetrates through the inside of the fixing plate, the end of the movable rod is connected with a clamping plate, the clamping plate is connected with the fixing plate through a spring, and the placement platform penetrates through the middle position of the base plate. This prevent beating askew and perforating device for gear machining in adjustable aperture can realize drilling out the hole of equidimension not through the drilling head of changing different diameters to can avoid the phenomenon of drilling in-process offset, and then increased drilling equipment's practicality.
Description
Technical Field
The invention relates to the technical field of gear machining, in particular to a gear machining device capable of preventing distortion and adjusting aperture
Provided are a punching device and a punching method for a tool.
Background
The gear is a mechanical element which is driven by a meshing principle, the center of the gear needs to be drilled in the production process of the gear so as to connect the gear and a shaft, and holes in the center of the gear need to be drilled in different sizes in order to meet the requirement of connection with shafts with different diameters, however, the existing punching device for machining the paper gear still has the following defects in the actual use process:
1. the same punching device can only drill holes with the same size, and different equipment needs to be replaced when holes with different sizes need to be drilled, so that the limitation of the punching device is increased;
2. and before punching, the gear to be machined is usually placed manually, so that the gear cannot be ensured to vertically correspond to the central position of the drilling head, and the phenomenon of hole position deviation in the machining process is easily caused.
To the above problems, innovative design is urgently needed on the basis of the original gear punching device.
Disclosure of Invention
The invention aims to provide a punching device and a punching method for gear machining, which are anti-skewing and capable of adjusting the aperture, and aims to solve the problems that different devices are required to be replaced when holes with different sizes are required to be drilled, the up-and-down correspondence of the central positions of a gear and a drilling head cannot be ensured, and the hole position is easy to shift in the machining process.
In order to achieve the purpose, the invention provides the following technical scheme: a punching device for gear machining capable of preventing askew and adjusting aperture comprises a base plate, a belt pulley mechanism, a rotating motor and a storage table, wherein the servo motor is installed at the bottom of the base plate, the top of the servo motor is connected with a lead screw, the belt pulley mechanism is installed on the outer side of the lead screw, a top plate is arranged at the top of the lead screw, the rotating motor is installed on the upper end face of the top plate, the bottom of the rotating motor is connected with a motor shaft, a cleaning brush is arranged at the side of the motor shaft, a drilling head is installed at the bottom of the motor shaft, movable grooves are reserved at the two ends of the top plate, an adjusting rod penetrates through the movable grooves, a locking bolt is arranged at the side of the adjusting rod, scale marks are carved on the top plate outside the locking bolt, the bottom of the adjusting rod is connected with a guide block, a through groove is formed in the base plate below the guide block, and the inside of fixed plate runs through there is the movable rod, the end department of movable rod is connected with splint, and splint pass through the spring and the fixed plate links to each other, put the intermediate position that the thing platform runs through the bed plate, and the top of putting the thing platform is pasted and is had the antiskid circle.
Preferably, the screw rods are symmetrically distributed about the central axis of the base plate, the screw rods are rotatably connected with the base plate, and the screw rods are in threaded connection with the top plate.
Preferably, the adjusting rod forms a sliding structure through the movable groove and the top plate, and the adjusting rod forms a dismounting and mounting structure through the locking bolt and the top plate.
Preferably, the inner side of the guide block is an inclined plane, and the inclined plane is attached to the end of the movable rod.
Preferably, the spring, the fixed plate and the clamping plate are fixedly connected, the movable rod and the fixed plate are in sliding connection, and the clamping plate is of an arc-shaped structure.
Preferably, the object placing table is hollow and cylindrical, and the object placing table and the central axis of the drilling head are on the same vertical line.
Compared with the prior art, the invention has the beneficial effects that: according to the anti-tilting and aperture-adjustable punching device for gear machining, holes with different sizes can be drilled by replacing drilling heads with different diameters, the phenomenon of position deviation in the drilling process can be avoided, and the practicability of the drilling device is improved;
1. the drilling head and the motor shaft can be quickly disassembled through threaded connection, and the object placing table is cylindrical, so that the drilling head is prevented from moving, and generated scraps are conveniently and directly discharged;
2. the synchronous decline of drive guide block when the roof descends, can drive splint through the movable rod like this and treat the gear both sides of processing and press from both sides tightly, avoid the position of gear crooked to the guide block can slide on the roof through adjusting the pole, is used for the spacing and then conveniently processes the gear of equidimension not.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is an enlarged view of the structure at A in FIG. 1 according to the present invention;
FIG. 3 is a schematic top view of the movable slot and the adjustment rod of the present invention;
FIG. 4 is a top view of the base plate of the present invention.
In the figure: 1. a base plate; 2. a servo motor; 3. a screw rod; 4. a belt pulley mechanism; 5. a top plate; 6. a rotating electric machine; 7. a motor shaft; 8. cleaning with a brush; 9. drilling a hole head; 10. a movable groove; 11. adjusting a rod; 12. locking the bolt; 13. scale lines; 14. a guide block; 15. a through groove; 16. a fixing plate; 17. a movable rod; 18. a splint; 19. a spring; 20. a placing table; 21. and (4) an anti-slip ring.
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.
Referring to fig. 1-4, the present invention provides a technical solution: a punching device for gear processing capable of preventing skew beating and adjusting aperture comprises a base plate 1, a servo motor 2, a screw rod 3, a belt pulley mechanism 4, a top plate 5, a rotating motor 6, a motor shaft 7, a cleaning brush 8, a drilling head 9, a movable groove 10, an adjusting rod 11, a locking bolt 12, a scale mark 13, a guide block 14, a through groove 15, a fixing plate 16, a movable rod 17, a clamping plate 18, a spring 19, a storage table 20 and an anti-slip ring 21, wherein the servo motor 2 is installed at the bottom of the base plate 1, the screw rod 3 is connected with the top of the servo motor 2, the belt pulley mechanism 4 is installed on the outer side of the screw rod 3, the top plate 5 is arranged at the top of the screw rod 3, the rotating motor 6 is installed on the upper end face of the top plate 5, the motor shaft 7 is connected with the bottom of the rotating motor 6, the cleaning brush 8 is arranged on the, the movable groove 10 is reserved at two ends of the top plate 5, the adjusting rod 11 penetrates through the inner part of the movable groove 10, the locking bolt 12 is arranged at the side of the adjusting rod 11, the scale mark 13 is carved on the top plate 5 outside the locking bolt 12, the bottom of the adjusting rod 11 is connected with the guide block 14, the through groove 15 is formed in the base plate 1 below the guide block 14, the fixing plate 16 is fixed on the upper end face of the base plate 1, the movable rod 17 penetrates through the inner part of the fixing plate 16, the end of the movable rod 17 is connected with the clamping plate 18, the clamping plate 18 is connected with the fixing plate 16 through the spring 19, the object placing table 20 penetrates through the middle position of the base plate 1, and the anti-skidding ring 21 is pasted at the top of the object;
the screw rods 3 are symmetrically distributed about the central axis of the base plate 1, the screw rods 3 are in rotary connection with the base plate 1, the screw rods 3 are in threaded connection with the top plate 5, and the screw rods 3 drive the other screw rod 3 to rotate through the belt pulley mechanism 4, so that the purpose that the top plate 5 drives the rotating motor 6 to descend can be achieved;
the adjusting rod 11 forms a sliding structure through the movable groove 10 and the top plate 5, the adjusting rod 11 forms a dismounting and mounting structure through the locking bolt 12 and the top plate 5, the adjusting rod 11 can slide in the movable groove 10 by unscrewing the locking bolt 12, the initial distance between the 2 guide blocks 14 is changed, and the adjusting device is suitable for machining gears with different sizes;
the inner side of the guide block 14 is provided with an inclined surface, the inclined surface of the guide block is attached to the end of the movable rod 17, the spring 19 is fixedly connected with the fixed plate 16 and the clamping plate 18, the movable rod 17 is in sliding connection with the fixed plate 16, the clamping plate 18 is of an arc-shaped structure, when the guide block 14 descends continuously, the movable rod 17 can be driven to slide on the fixed plate 16, the clamping plate 18 is driven to approach the gear to clamp the gear, and when the guide block 14 ascends, the movable rod 17 can be driven to return to the initial position through resilience of the spring 19;
the object placing table 20 is hollow and cylindrical, and the central axis of the object placing table and the central axis of the drilling head 9 are positioned on the same vertical line, so that the movement of the drilling head 9 is not hindered, and a large amount of scraps generated by drilling can be conveniently and directly discharged through the cylindrical object placing table 20.
A punching method of a punching device for gear machining, which is anti-skewing and has an adjustable aperture: when the drilling device for gear machining, which is anti-skewing and capable of adjusting the aperture, is used, as shown in fig. 1-3, a gear to be machined is firstly placed on the placing table 20, the anti-slip ring 21 can increase the resistance when the gear is placed, as shown in fig. 3, then the adjusting rod 11 can slide in the movable groove 10 by loosening the locking bolt 12, as shown in fig. 2, the accuracy of adjustment can be increased through the scale marks 13 on the top plate 5, the initial spacing between the 2 guide blocks 14 is changed through the adjusting rod 11, and the drilling device is suitable for machining gears with different sizes;
as shown in fig. 1 and 4, a servo motor 2 drives a screw rod 3 to rotate, the screw rod 3 drives another screw rod 3 to rotate through a belt pulley mechanism 4, so that the purpose that a top plate 5 drives a rotating motor 6 to descend can be achieved, the top plate 5 descends while driving a guide block 14 to descend synchronously, because the inner side of the guide block 14 is arranged in an inclined plane, when the guide block 14 descends continuously, a movable rod 17 can be driven to slide on a fixed plate 16 and drive a clamping plate 18 to approach a gear to clamp the gear, then the rotating motor 6 drives a drilling head 9 to drill the gear through a motor shaft 7, the motor shaft 7 rotates while driving a cleaning brush 8 to rotate, debris generated during drilling can be cleaned, the drilling head 9 and the motor shaft 7 are connected through threads to be conveniently detached, so that the drilling heads 9 with different diameters can be replaced, as shown in fig. 4, then a large amount of debris generated during drilling can be directly discharged through a cylindrical object placing table 20, the guide block 14 constantly descends and can go deep into the inside of the through groove 15, so that the guide effect of the guide block cannot be influenced, the guide block 14 is synchronously driven to ascend when the top plate 5 is driven to ascend by the screw rod 3, and the movable rod 17 can be driven to recover to the initial position through the rebound resilience of the spring 19 so as to facilitate subsequent clamping operation.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (7)
1. The utility model provides a prevent beating askew and perforating device for gear machining in adjustable aperture, includes bed plate (1), belt pulley mechanism (4), rotating electrical machines (6) and puts thing platform (20), its characterized in that: the base plate is characterized in that a servo motor (2) is installed at the bottom of the base plate (1), the top of the servo motor (2) is connected with a screw rod (3), a belt pulley mechanism (4) is installed on the outer side of the screw rod (3), a top plate (5) is arranged at the top of the screw rod (3), a rotating motor (6) is installed on the upper end face of the top plate (5), the bottom of the rotating motor (6) is connected with a motor shaft (7), a cleaning brush (8) is arranged on the side of the motor shaft (7), a drilling head (9) is installed at the bottom of the motor shaft (7), movable grooves (10) are reserved at the two ends of the top plate (5), an adjusting rod (11) penetrates through the movable grooves (10), a locking bolt (12) is arranged on the side of the adjusting rod (11), a scale mark (13) is carved on the top plate (5) on the outer side of the locking bolt (12), and a guide block (, and logical groove (15) have been seted up on bed plate (1) of guide block (14) below, the up end of bed plate (1) is fixed with fixed plate (16), and the inside of fixed plate (16) runs through has movable rod (17), the end department of movable rod (17) is connected with splint (18), and splint (18) link to each other through spring (19) and fixed plate (16), put thing platform (20) and run through the intermediate position of bed plate (1), and the top of putting thing platform (20) is pasted and is had antislip ring (21).
2. The punching device for gear processing according to claim 1, wherein the punching device is capable of preventing the gear from being skewed and adjusting the diameter of the gear: the screw rod (3) is symmetrically distributed about the central axis of the base plate (1), the screw rod (3) is rotatably connected with the base plate (1), and the screw rod (3) is in threaded connection with the top plate (5).
3. The punching device for gear processing according to claim 1, wherein the punching device is capable of preventing the gear from being skewed and adjusting the diameter of the gear: the adjusting rod (11) forms a sliding structure with the top plate (5) through the movable groove (10), and the adjusting rod (11) forms a dismounting and mounting structure with the top plate (5) through the locking bolt (12).
4. The punching device for gear processing according to claim 1, wherein the punching device is capable of preventing the gear from being skewed and adjusting the diameter of the gear: the inner side of the guide block (14) is provided with an inclined plane, and the inclined plane is attached to the end of the movable rod (17).
5. The punching device for gear processing according to claim 1, wherein the punching device is capable of preventing the gear from being skewed and adjusting the diameter of the gear: the spring (19) is fixedly connected with the fixed plate (16) and the clamping plate (18), the movable rod (17) is in sliding connection with the fixed plate (16), and the clamping plate (18) is of an arc-shaped structure.
6. The punching device for gear processing according to claim 1, wherein the punching device is capable of preventing the gear from being skewed and adjusting the diameter of the gear: the object placing table (20) is hollow and cylindrical, and the central axis of the object placing table and the central axis of the drilling head (9) are on the same vertical line.
7. A punching method of a punching device for gear machining, which is capable of preventing skew punching and adjusting aperture, is characterized in that: the specific punching method comprises the following steps: when the drilling device for gear machining is used, the inclined punching device is prevented, the aperture of the punching device can be adjusted, a gear to be machined is placed on the object placing table (20), the anti-skidding ring (21) can increase resistance when the gear is placed, then the sliding of the adjusting rod (11) in the movable groove (10) can be realized by unscrewing the locking bolt (12), the adjusting accuracy can be increased through the scale marks (13) on the top plate (5), the initial distance between the 2 guide blocks (14) is changed through the adjusting rod (11), and the drilling device is suitable for machining gears with different sizes;
the servo motor (2) drives the screw rod (3) to rotate, the screw rod (3) drives another screw rod (3) to rotate through the belt wheel mechanism (4), so that the aim that the top plate (5) drives the rotating motor (6) to descend can be achieved, the top plate (5) descends and simultaneously drives the guide block (14) to synchronously descend, as the inner side of the guide block (14) is arranged in an inclined plane, the guide block (14) can drive the movable rod (17) to slide on the fixed plate (16) when descending continuously, and drives the clamping plate (18) to approach the gear to clamp the gear, then the rotating motor (6) drives the drilling head (9) to drill the gear through the motor shaft (7), the motor shaft (7) drives the cleaning brush (8) to rotate while rotating, the cleaning chips generated during drilling can be cleaned, and the drilling head (9) and the motor shaft (7) are conveniently disassembled through threaded connection, can realize the change to different diameter drilling heads (9), then a large amount of pieces that the drilling produced can be through the cylindrical thing platform (20) direct discharge of putting, guide block (14) constantly descend can go deep into logical groove (15) inside, consequently can not influence its guide effect, synchronous drive guide block (14) rise when last lead screw (3) drive roof (5) rise, resilience through spring (19), can drive movable rod (17) and resume to initial position, so that subsequent tight operation of clamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911023310.4A CN110653392A (en) | 2019-10-25 | 2019-10-25 | Anti-skewing and aperture-adjustable punching device and punching method for gear machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911023310.4A CN110653392A (en) | 2019-10-25 | 2019-10-25 | Anti-skewing and aperture-adjustable punching device and punching method for gear machining |
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| Publication Number | Publication Date |
|---|---|
| CN110653392A true CN110653392A (en) | 2020-01-07 |
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|---|---|---|---|
| CN201911023310.4A Pending CN110653392A (en) | 2019-10-25 | 2019-10-25 | Anti-skewing and aperture-adjustable punching device and punching method for gear machining |
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| CN111960859A (en) * | 2020-08-18 | 2020-11-20 | 郑付梅 | Insulator surface layer glazing equipment and glazing method thereof |
| CN111992765A (en) * | 2020-08-19 | 2020-11-27 | 安徽省玉环清洗设备制造有限公司 | Shell drilling machine is used in production of dish of sweeping floor |
| CN112034120A (en) * | 2020-07-14 | 2020-12-04 | 吴洪义 | Automatic control dynamic detection device for safety of drinking water pipe |
| CN112171774A (en) * | 2020-09-23 | 2021-01-05 | 杭州贤捷装饰装潢有限公司 | Punching device for preventing center deviation when plastic basin is fixed |
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| CN111391019A (en) * | 2020-03-24 | 2020-07-10 | 杭州帮贡科技有限公司 | Drilling device capable of changing aperture size and synchronously clamping based on reciprocating motion |
| CN112034120A (en) * | 2020-07-14 | 2020-12-04 | 吴洪义 | Automatic control dynamic detection device for safety of drinking water pipe |
| CN112034120B (en) * | 2020-07-14 | 2022-08-02 | 吴洪义 | Automatic control dynamic detection device for safety of drinking water pipe |
| CN111960859A (en) * | 2020-08-18 | 2020-11-20 | 郑付梅 | Insulator surface layer glazing equipment and glazing method thereof |
| CN111992765A (en) * | 2020-08-19 | 2020-11-27 | 安徽省玉环清洗设备制造有限公司 | Shell drilling machine is used in production of dish of sweeping floor |
| CN112171774A (en) * | 2020-09-23 | 2021-01-05 | 杭州贤捷装饰装潢有限公司 | Punching device for preventing center deviation when plastic basin is fixed |
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Effective date of registration: 20230203 Address after: 224000 No.1, Huaxing Avenue, Yandu District, Yancheng City, Jiangsu Province (f) Applicant after: Yancheng Yongan Technology Co.,Ltd. Address before: 3 / F, production building, Zhangzhuang national entrepreneurship and innovation park complex, Yandu District, Yancheng City, Jiangsu Province, 224000 (g) Applicant before: YANCHENG HALI POWER TRANSMISSION AND INTELLIGENT EQUIPMENT INDUSTRY RESEARCH INSTITUTE Co.,Ltd. |
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Application publication date: 20200107 |