CN111451777A - Chipless cutting device for copper pipe - Google Patents
Chipless cutting device for copper pipe Download PDFInfo
- Publication number
- CN111451777A CN111451777A CN202010277603.1A CN202010277603A CN111451777A CN 111451777 A CN111451777 A CN 111451777A CN 202010277603 A CN202010277603 A CN 202010277603A CN 111451777 A CN111451777 A CN 111451777A
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- Prior art keywords
- cutting
- fixedly connected
- copper pipe
- box
- block
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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
- B23P23/04—Machines or arrangements of machines for performing specified combinations of different metal-working operations not covered by a single other subclass for both machining and other metal-working 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
- 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
-
- 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
- B23Q11/0046—Devices for removing chips by sucking
Abstract
The invention discloses a copper pipe chipless cutting device which comprises a cutting box, an exhaust fan and a collecting box, wherein the top of the cutting box is fixedly connected with the bottoms of the exhaust fan and the collecting box respectively, and one end of an air outlet of the exhaust fan is communicated with the inside of the collecting box through a communicating pipe. This copper pipe chipless cutting device, through the equal fixedly connected with sharp mechanism in front and the back of cutting incasement wall, and the equal fixedly connected with cutting mechanism in top and bottom between the relative one side of two sharp mechanisms, two relative one sides of cutting mechanism all rotate and are connected with the cutting blade, the back intercommunication of cutting incasement wall has the exhaust column, utilize two cutting mechanisms that set up in the cutting case, cut the copper pipe, utilize air exhauster air intake intercommunication exhaust column to carry out timely collection to the sweeps that the cutting in-process produced simultaneously, the cutting environment has been improved effectively, staff's intensity of labour has been reduced.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a copper pipe chipless cutting device.
Background
The copper pipe is also called as red copper pipe, one kind of non-ferrous metal pipe, it is a pressed and drawn seamless pipe, the copper pipe has good conductivity, the characteristic of the thermal conductivity, the main material of the conductive fittings and heat dissipation fittings of the electronic product, and it becomes the first choice of the modern contractor in the tap water pipeline, heating, refrigeration pipeline installation of all housing commodity houses, the copper pipe has strong corrosion resistance, difficult oxidation, and difficult chemical reaction with some liquid substance, easy to be bent and shaped, the copper pipe is also called as red copper pipe is a pressed and drawn seamless pipe, the copper pipe is light in weight, good in thermal conductivity, high in low temperature strength, often used to make heat exchange equipment (such as condenser, etc.), also used to equip low temperature pipeline in the oxygen making equipment, the copper pipe with small diameter is often used to transport the liquid with pressure (such as lubricating system, oil pressure system, etc.) and used as the pressure measuring.
In the processing process of a common copper pipe, due to the problems of cutting blades and the material of the copper pipe, a plurality of burrs and copper wires exist on the section of the copper pipe; after the cutting is finished, the burrs are fixedly connected to the tail end of the copper pipe, so that much inconvenience is brought to the post-treatment of the copper pipe; meanwhile, after the copper pipe is cut, part of burrs and copper wire fragments are easily generated, the fragments fall on the transmission belt and are inconvenient to collect, and the fragments are easily scattered on the ground along with the transmission belt, so that the operation of workers is inconvenient, and the waste of raw materials is caused.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides a copper pipe chipless cutting device, which solves the problems that when a copper pipe is machined and cut, a lot of scraps exist on the section of the copper pipe, the cutting environment is poor, the labor intensity of workers is improved, and raw materials are wasted.
(II) technical scheme
In order to achieve the purpose, the invention is realized by the following technical scheme: a copper pipe chipless cutting device comprises a cutting box, an exhaust fan and a collecting box, wherein the top of the cutting box is respectively and fixedly connected with the bottoms of the exhaust fan and the collecting box, one end of an air outlet of the exhaust fan is communicated with the inside of the collecting box through a communicating pipe, the right side of the cutting box is fixedly connected with an inlet block, the left side of the cutting box is fixedly connected with a guide block, the front and the back of the inner wall of the cutting box are respectively and fixedly connected with a linear mechanism, the top and the bottom between the opposite sides of the two linear mechanisms are respectively and fixedly connected with a cutting mechanism, the opposite sides of the two cutting mechanisms are respectively and rotatably connected with a cutting blade, the back of the inner wall of the cutting box is communicated with an exhaust pipe, one end of the exhaust pipe is communicated with one end of an air inlet of the exhaust fan, the top and the bottom of the inner wall of the cutting, two fixedly connected with installation piece between the relative one side of first step motor, the both sides of installation piece are all rotated and are connected with the turning block to the equal fixedly connected with grinding wheel in inside of two turning blocks, the front and the equal fixedly connected with second slide rail in the back of guide block inner wall to the equal sliding connection in one side that two second slide rails are relative has a second step motor, two the equal fixedly connected with telescopic link in the relative one side of second step motor to the equal fixedly connected with snap ring of one end of two telescopic link output shafts.
Preferably, a fixing plate is fixedly connected between the top and the bottom of the inner wall of the cutting box, an electromagnetic valve is fixedly connected inside the fixing plate, and the electromagnetic valve and the feeding block are located on the same central axis.
Preferably, the mounting grooves are formed in two sides of the inside of the mounting block, and the servo motors are fixedly connected to the inside of the two mounting grooves.
Preferably, the movable groove that all offers with the turning block looks adaptation in the both sides of installation piece, the one end of servo motor output shaft runs through the movable groove and extends to the inside in movable groove to servo motor output shaft extends to the inside one end in movable groove and the inside fixed connection of turning block.
Preferably, the two fixed snap rings and the feeding block are located on the same central axis, and one opposite sides of the two fixed snap rings are fixedly connected with rubber pads.
Preferably, the grinding wheel is internally provided with a groove, and the thickness of the grinding wheel is 5 cm.
Preferably, the front face of the cutting box is fixedly connected with a display screen, and the front face of the cutting box is fixedly connected with a control key positioned on the right side of the display screen.
Preferably, the control key is electrically connected with the inner parts of the exhaust fan, the linear mechanism, the cutting mechanism, the first stepping motor, the second stepping motor, the electromagnetic valve and the servo motor through leads respectively.
(III) advantageous effects
The invention provides a chipless cutting device for a copper pipe. Compared with the prior art, the method has the following beneficial effects:
(1) the copper pipe chipless cutting device is characterized in that linear mechanisms are fixedly connected to the front and the back of the inner wall of a cutting box, the cutting mechanisms are fixedly connected to the top and the bottom of the inner wall of the cutting box, the cutting blades are rotatably connected to the opposite sides of the two cutting mechanisms, the back of the inner wall of the cutting box is communicated with an exhaust pipe, one end of the exhaust pipe is communicated with one end of an air inlet of an exhaust fan, first slide rails are fixedly connected to the top and the bottom of the inner wall of the cutting box, first stepping motors are slidably connected to the opposite sides of the two first stepping motors, an installation block is fixedly connected between the opposite sides of the two first stepping motors, rotating blocks are rotatably connected to the two sides of the installation block, grinding wheels are fixedly connected to the insides of the two rotating blocks, and a copper pipe is cut by utilizing the two cutting mechanisms arranged in the, meanwhile, the air inlet of the exhaust fan is communicated with the exhaust pipe to collect the scraps generated in the cutting process in time, so that the cutting environment is effectively improved, and the labor intensity of workers is reduced.
(2) The copper pipe chipless cutting device is characterized in that linear mechanisms are fixedly connected to the front and the back of the inner wall of a cutting box, the cutting mechanisms are fixedly connected to the top and the bottom of the two opposite sides of the linear mechanisms, the cutting blades are rotatably connected to the two opposite sides of the cutting mechanisms, the back of the inner wall of the cutting box is communicated with an exhaust pipe, one end of the exhaust pipe is communicated with one end of an air inlet of an exhaust fan, first slide rails are fixedly connected to the top and the bottom of the inner wall of the cutting box, first stepping motors are slidably connected to the two opposite sides of the first slide rails, an installation block is fixedly connected between the two opposite sides of the first stepping motors, rotating blocks are rotatably connected to the two sides of the installation block, grinding wheels are fixedly connected to the insides of the two rotating blocks, and after the cutting operation of a copper pipe is completed, the grinding wheels on the two sides of the installation block can, the method avoids the scraps remained in the cut of the copper pipe after the cutting process is finished, improves the utilization rate of raw materials, and simultaneously ensures that no scraps exist in the process of cutting the copper pipe to pollute the environment.
(3) This copper pipe chipless cutting device, right side fixedly connected with feed block through the cutting case, and the left side fixedly connected with guide block of cutting case, the front and the equal fixedly connected with second slide rail in the back of guide block inner wall, and the equal sliding connection in one side that two second slide rails are relative has the second step motor, the equal fixedly connected with telescopic link in one side that two second step motors are relative, and the fixed snap ring of the equal fixedly connected with of one end of two telescopic link output shafts, utilize a plurality of mechanism's mating reaction that set up in the guide block, can carry out automated control to the copper pipe after the cutting process, improve the efficiency to copper pipe cutting process, the normal processing of copper pipe chipless cutting has been guaranteed simultaneously.
(4) This copper pipe chipless cutting device, the mounting groove has all been seted up through the inside both sides of installation piece, and the equal fixedly connected with servo motor in inside of two mounting grooves, the movable groove with turning block looks adaptation is all seted up to the both sides of installation piece, the one end of servo motor output shaft runs through the movable groove and extends to the inside of movable groove, and the servo motor output shaft extends to the inside one end of movable inslot and the inside fixed connection of turning block, utilize two inside servo motor of installation piece, the grinding wheel that can drive both sides effectively carries out the processing of burr and copper wire to copper pipe incision, guarantee that the copper pipe can not cause the pollution to operational environment after accomplishing cutting process.
Drawings
FIG. 1 is a front view of the structure of a chipless copper pipe cutting device according to the present invention;
FIG. 2 is a sectional view showing the structure of the chipless cutting apparatus for copper pipes in accordance with the present invention;
FIG. 3 is a cross-sectional view of a mounting block structure of the present invention;
FIG. 4 is a side view of a material guide block structure according to the present invention;
fig. 5 is a perspective view of the grinding wheel structure of the present invention.
In the figure, 1-a cutting box, 2-an exhaust fan, 3-a collecting box, 4-a material inlet block, 5-a material guide block, 6-a linear mechanism, 7-a cutting mechanism, 8-a cutting blade, 9-an exhaust pipe, 10-a first slide rail, 11-a first stepping motor, 12-an installation block, 13-a rotating block, 14-a grinding wheel, 15-a second slide rail, 16-a second stepping motor, 17-an expansion rod, 18-a fixed snap ring, 19-a fixed plate, 20-an electromagnetic valve, 21-an installation groove, 22-a servo motor, 23-a movable groove, 24-a groove, 25-a display screen and 26-a control key are arranged.
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. 1-5, an embodiment of the present invention provides a technical solution: a copper pipe chipless cutting device comprises a cutting box 1, an exhaust fan 2 and a collecting box 3, wherein the front of the cutting box 1 is fixedly connected with a display screen 25, the front of the cutting box 1 is fixedly connected with a control key 26 positioned on the right side of the display screen 25, the control key 26 is respectively and electrically connected with the exhaust fan 2, a linear mechanism 6, a cutting mechanism 7, a first stepping motor 11, a second stepping motor 16, an electromagnetic valve 20 and a servo motor 22 through leads, a fixing plate 19 is fixedly connected between the top and the bottom of the inner wall of the cutting box 1, the electromagnetic valve 20 is fixedly connected inside the fixing plate 19, the electromagnetic valve 20 and a feeding block 4 are positioned on the same central axis, the top of the cutting box 1 is respectively and fixedly connected with the exhaust fan 2 and the bottom of the collecting box 3, one end of an air outlet of the exhaust fan 2 is communicated with the inside of the collecting box 3 through, and the left side of the cutting box 1 is fixedly connected with a guide block 5, the cooperation of a plurality of mechanisms arranged in the guide block 5 is utilized to automatically control the copper pipe after cutting, the efficiency of cutting the copper pipe is improved, the normal processing of chipless cutting of the copper pipe is ensured at the same time, the front side and the back side of the inner wall of the cutting box 1 are both fixedly connected with linear mechanisms 6, the top and the bottom between the opposite sides of the two linear mechanisms 6 are both fixedly connected with cutting mechanisms 7, the opposite sides of the two cutting mechanisms 7 are both rotatably connected with cutting blades 8, the copper pipe is cut by utilizing the two cutting mechanisms 7 arranged in the cutting box 1, simultaneously, an air inlet of an exhaust fan 2 is communicated with an exhaust pipe 9 to collect waste chips generated in the cutting process in time, the cutting environment is effectively improved, the labor intensity of workers is reduced, the back side of the inner wall of the cutting box 1 is communicated with the exhaust pipe 9, one end of an exhaust pipe 9 is communicated with one end of an air inlet of an exhaust fan 2, the top and the bottom of the inner wall of the cutting box 1 are fixedly connected with first slide rails 10, one opposite sides of the two first slide rails 10 are slidably connected with first stepping motors 11, an installation block 12 is fixedly connected between the opposite sides of the two first stepping motors 11, two installation grooves 21 are respectively formed in two sides of the interior of the installation block 12, servo motors 22 are respectively and fixedly connected in the interior of the two installation grooves 21, the two servo motors 22 in the interior of the installation block 12 can effectively drive grinding wheels 14 on two sides to treat burrs and copper wires of copper pipe cuts, so that the copper pipe can not pollute the working environment after cutting machining is finished, movable grooves 23 matched with the rotating blocks 13 are respectively formed in two sides of the installation block 12, one end of an output shaft of the servo motor 22 penetrates through the movable grooves 23 and extends to the interior of the movable grooves 23, one end of an output shaft of the servo motor 22, which extends to the inside of the movable groove 23, is fixedly connected with the inside of the rotating block 13, the two sides of the mounting block 12 are rotatably connected with the rotating block 13, the grinding wheels 14 are fixedly connected with the inside of the two rotating blocks 13, grooves 24 are formed in the grinding wheels 14, the thickness of each grinding wheel 14 is 5cm, the grinding wheels 14 on the two sides of the mounting block 12 can effectively grind the cuts of the copper pipe, waste scraps remained in the cuts of the copper pipe after cutting is avoided, the utilization rate of raw materials is improved, no pollution to the environment caused by the waste scraps is guaranteed in the cutting process of the copper pipe, the front surface and the back surface of the inner wall of the guide block 5 are fixedly connected with the second slide rails 15, the opposite sides of the two second slide rails 15 are slidably connected with the second stepping motors 16, and the opposite sides of the two second stepping motors 16 are fixedly connected with the telescopic rods 17, and the equal fixedly connected with of one end of two telescopic link 17 output shafts snap ring 18, two snap ring 18 and feeding block 4 are in same the central axis to the equal fixedly connected with rubber pad in the relative one side of two snap ring 18.
When the copper pipe cutting machine works, a worker sends one end of a copper pipe to be cut into the cutting box 1 from the inside of the feeding block 4, the two first stepping motors 11 drive the mounting block 12 to move to the middle of the cutting box 1 by operating the control key 26, the grinding wheel 14 on one side of the mounting block 12 and the feeding block 4 are positioned on the same central axis, one end of the copper pipe penetrates through the fixing plate 19 to be in contact with the groove 24 in the grinding wheel 14 on the right side of the mounting block 12, the operating switch of the electromagnetic valve 20 in the fixing plate 19 is opened by operating the control key 26, the operating switch of the servo motor 22 on the right side in the mounting block 12 is opened by operating the control key 26, the rotating block 13 is driven by the output shaft of the servo motor 22 to rotate in the movable groove 23, so that the grinding wheel 14 grinds one end of the copper pipe, and after the grinding is completed, the electromagnetic valve, the copper pipe retreats from a distance to the right, the two first stepping motors 11 drive the mounting block 12 to move towards the rear side of the cutting box 1, the cutting length of the copper pipe is adjusted according to production requirements, the control key 26 is operated to enable the electromagnetic valve 20 to limit the copper pipe before the copper pipe is cut, the operation control key 26 opens working switches of the linear mechanism 6 and the cutting mechanism 7, the linear mechanism 6 is used for respectively driving the two cutting mechanisms 7 to move, the cutting blades 8 in the two cutting mechanisms 7 rotate to successively cut the copper pipe to complete the cutting processing of the copper pipe, one end of the copper pipe is pulled towards the left side until one end of the copper pipe moves to the left side of the mounting block 12, the two first stepping motors 11 are operated by the control key 26 to drive the mounting block 12 to move to the middle part of the cutting box 1, and the second stepping motor 16 in the guide block 5 and a working switch of the telescopic rod 17 are opened by the operation, utilize two telescopic links 17 to drive two fixed snap rings 18 and carry out spacing fixed to the surface of copper pipe, utilize second step motor 16 to drive the copper pipe right movement simultaneously, one end up to the copper pipe notched contacts with the inside recess 24 of the left grinding wheel 14 of installation piece 12, utilize the inside left servo motor 22 of installation piece 12 to drive turning block 13 and rotate, thereby utilize grinding wheel 14 to carry out abrasive treatment to the one end of copper pipe cutting, in the in-process of cutting and abrasive machining to the copper pipe, air exhauster 2 collects the sweeps that produces in cutting case 1 through exhaust column 9 all the time, the sweeps of collection concentrates the storage through collecting box 3.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a copper pipe chipless cutting device, includes cutting case (1), air exhauster (2) and collecting box (3), the top of cutting case (1) respectively with the bottom fixed connection of air exhauster (2), collecting box (3) to the inside intercommunication of communicating pipe and collecting box (3) is passed through to the one end of air exhauster (2) air outlet, its characterized in that: the right side of the cutting box (1) is fixedly connected with a feeding block (4), the left side of the cutting box (1) is fixedly connected with a guide block (5), the front and the back of the inner wall of the cutting box (1) are fixedly connected with linear mechanisms (6), the top and the bottom between the opposite sides of the two linear mechanisms (6) are fixedly connected with cutting mechanisms (7), the opposite sides of the two cutting mechanisms (7) are rotatably connected with cutting blades (8), the back of the inner wall of the cutting box (1) is communicated with an exhaust pipe (9), one end of the exhaust pipe (9) is communicated with one end of an air inlet of an exhaust fan (2), the top and the bottom of the inner wall of the cutting box (1) are fixedly connected with first sliding rails (10), the opposite sides of the two first sliding rails (10) are slidably connected with first stepping motors (11), and a mounting block (12) is fixedly connected between the opposite sides of the two first stepping motors (11), the both sides of installation piece (12) all rotate and are connected with turning block (13) to the equal fixedly connected with grinding wheel (14) in inside of two turning block (13), the front and the equal fixedly connected with second slide rail (15) in the back of guide piece (5) inner wall to the equal sliding connection in one side that two second slide rails (15) are relative has second step motor (16), two the equal fixedly connected with telescopic link (17) in one side that second step motor (16) are relative to and the equal fixedly connected with snap ring (18) of one end of two telescopic link (17) output shafts.
2. A chipless cutting apparatus for copper tubes as claimed in claim 1 wherein: a fixing plate (19) is fixedly connected between the top and the bottom of the inner wall of the cutting box (1), an electromagnetic valve (20) is fixedly connected inside the fixing plate (19), and the electromagnetic valve (20) and the feeding block (4) are located on the same central axis.
3. A chipless cutting apparatus for copper tubes as claimed in claim 1 wherein: mounting grooves (21) are formed in two sides of the interior of the mounting block (12), and servo motors (22) are fixedly connected to the two mounting grooves (21) in the interior.
4. A chipless cutting apparatus for copper tubes as claimed in claim 3 wherein: the movable groove (23) of fitting with turning block (13) looks adaptation is all seted up to the both sides of installation piece (12), the one end of servo motor (22) output shaft runs through movable groove (23) and extends to the inside in movable groove (23) to servo motor (22) output shaft extends to the inside one end in movable groove (23) and the inside fixed connection of turning block (13).
5. A chipless cutting apparatus for copper tubes as claimed in claim 1 wherein: the two fixing snap rings (18) and the feeding block (4) are located on the same central axis, and rubber pads are fixedly connected to the opposite sides of the two fixing snap rings (18).
6. A chipless cutting apparatus for copper tubes as claimed in claim 1 wherein: a groove (24) is formed in the grinding wheel (14), and the thickness of the grinding wheel (14) is 5 cm.
7. A chipless cutting apparatus for copper tubes as claimed in claim 1 wherein: the front face of the cutting box (1) is fixedly connected with a display screen (25), and the front face of the cutting box (1) is fixedly connected with a control key (26) which is located on the right side of the display screen (25).
8. A chipless cutting apparatus for copper tubes as claimed in claim 7 wherein: the control key (26) is electrically connected with the inner parts of the exhaust fan (2), the linear mechanism (6), the cutting mechanism (7), the first stepping motor (11), the second stepping motor (16), the electromagnetic valve (20) and the servo motor (22) through leads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010277603.1A CN111451777A (en) | 2020-04-10 | 2020-04-10 | Chipless cutting device for copper pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010277603.1A CN111451777A (en) | 2020-04-10 | 2020-04-10 | Chipless cutting device for copper pipe |
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| Publication Number | Publication Date |
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| CN111451777A true CN111451777A (en) | 2020-07-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010277603.1A Pending CN111451777A (en) | 2020-04-10 | 2020-04-10 | Chipless cutting device for copper pipe |
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| CN (1) | CN111451777A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114523043A (en) * | 2022-02-18 | 2022-05-24 | 常州市加豪制冷设备有限公司 | Special cutting closing-up mechanism for connecting copper pipe of internal and external machines of air conditioner and using method thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200728 |
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| RJ01 | Rejection of invention patent application after publication |