CN110653682A - Pipe polishing universal machine tool - Google Patents
Pipe polishing universal machine tool Download PDFInfo
- Publication number
- CN110653682A CN110653682A CN201911071923.5A CN201911071923A CN110653682A CN 110653682 A CN110653682 A CN 110653682A CN 201911071923 A CN201911071923 A CN 201911071923A CN 110653682 A CN110653682 A CN 110653682A
- Authority
- CN
- China
- Prior art keywords
- pipe
- connection
- machine tool
- block
- sliding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/007—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for end faces of tubes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/02—Frames; Beds; Carriages
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/06—Work supports, e.g. adjustable steadies
- B24B41/067—Work supports, e.g. adjustable steadies radially supporting workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B9/00—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
- B24B9/02—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground
- B24B9/04—Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor characterised by a special design with respect to properties of materials specific to articles to be ground of metal, e.g. skate blades
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The utility model provides a tubular product general lathe of polishing, includes the workstation, the fixed case of workstation upside fixed connection, the both sides that fixed case is relative are open structure, the workstation upside is equipped with first spout, the first slider of sliding connection in the first spout, first slider upside fixed connection mounting panel, fixed connection driving motor on the mounting panel, fixed connection grinding device on driving motor's the main shaft. According to the pipe deburring device, the screw rod is rotated, the second sliding block moves downwards to clamp a pipe, the screw rod is rotated to enable the polishing block to be attached to an inner hole of the pipe, the square sleeve slides on the square rod, the position is adjusted to be a proper position by expanding or contracting the two supporting rods and matching with the I-shaped sliding block to slide in the through groove, the polishing block is attached to the edge of the inner hole of the pipe, the pipe deburring device is suitable for chamfering and deburring of inner holes of pipes with different pipe diameters, and the device is high in universality.
Description
Technical Field
The invention relates to the technical field of pipe polishing equipment, in particular to a universal pipe polishing machine tool.
Background
The steel pipe all needs to carry out burring to its inner end and outer end after processing is accomplished, and the tradition is mainly relied on the centrum of stereotyping or taper hole grit to the steel pipe burring and is carried out the burring to the inside and outside limit of steel pipe.
In the prior art, for example, an adjustable deburring machine for steel pipes with a patent publication number of CN104551911A comprises a machine body, wherein a chuck assembly and a grinding wheel assembly are arranged on the machine body, and the grinding wheel assembly is movably arranged on the machine body; the grinding wheel assembly comprises a base outer sand sleeve and an inner sand column, wherein the inner sand column is arranged in the outer sand sleeve, an inner hole at the front end of the inner sleeve forms a conical cavity section, the front end of the inner sand column forms a cone section, a polishing area is formed between the cone forging and the conical cavity section, a fastening bolt is arranged on the outer sand sleeve, and the fastening bolt penetrates through the outer sand sleeve to be in contact with the inner sand column.
The device only can polish the steel pipe of a pipe diameter, and the equipment commonality is low, and the processing cost is high, is unfavorable for reduction in production cost.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a universal machine tool for polishing pipes, so that the problems in the prior art are solved.
In order to achieve the purpose, the invention adopts the following technical scheme:
a universal machine tool for polishing pipes comprises a workbench, wherein a fixed box is fixedly connected to the upper side of the workbench, two opposite sides of the fixed box are of an open structure, a first sliding groove is formed in the upper side of the workbench, a first sliding block is slidably connected in the first sliding groove, the upper side of the first sliding block is fixedly connected with a mounting plate, a driving motor is fixedly connected to the mounting plate, and a polishing device is fixedly connected to a main shaft of the driving motor;
grinding device includes square pole, square pole is kept away from two bracing pieces of driving motor's one end symmetry articulated connection, is equipped with a polishing block on every bracing piece, square pole outside sliding connection square cover, the articulated branch of connecting in square cover relative both sides, every the other end and the bracing piece one-to-one of branch are connected with articulated, square sheathe in and is equipped with first screw hole, first screw hole internal thread connection fixing bolt.
Preferably, the bottom inside the fixed box is fixedly connected with the supporting block, a first V-shaped groove is formed in the upper side of the supporting block, the upper side of the fixed box is in threaded connection with the screw rod, one end of the screw rod, which extends into the fixed box, is rotatably connected with the lower pressing block, two opposite sides of the lower pressing block are respectively and fixedly connected with a second sliding block, a second sliding groove is formed in the inner side of the fixed box, the second sliding block is slidably connected into the second sliding groove, a second V-shaped groove is formed in the bottom of the lower pressing block, and the second V-shaped groove and the first V-shaped groove are arranged.
Preferably, the upper side of the workbench is fixedly connected with two vertical plates, a lead screw is rotatably connected between the two vertical plates, a second threaded hole is formed in the middle of the first sliding block, and the lead screw penetrates through the second threaded hole and is in threaded fit connection.
Preferably, each supporting rod is provided with a through groove with one side square, the through groove is connected with an I-shaped sliding block in a sliding mode, the side edge of each supporting rod is provided with a third threaded hole communicated with the through groove, the third threaded hole is connected with a locking bolt in a threaded mode, and the polishing block is fixedly connected to the I-shaped sliding block.
Preferably, two supporting springs are fixedly connected between the grinding block and the I-shaped sliding block.
Preferably, one side of the polishing block, which is far away from the I-shaped sliding block, is an arc-shaped surface.
The invention has the advantages that: according to the universal machine tool for polishing the pipes, the screw rod is rotated, the second sliding block moves downwards to clamp the pipes, the screw rod is rotated to enable the polishing block to be attached to the inner holes of the pipes, the square sleeve slides on the square rod, the position is adjusted to a proper position by expanding or contracting the two supporting rods and matching with the sliding of the I-shaped sliding block in the through groove to adjust the position, the polishing block is attached to the edges of the inner holes of the pipes, the universal machine tool is suitable for deburring of inner hole chamfers of the pipes with different inner hole diameters, and the universal machine tool is high in universality.
Drawings
FIG. 1 is a schematic diagram of the basic structure of the present invention;
FIG. 2 is a schematic view showing the internal structure of the fixing box of the present invention;
fig. 3 is a schematic view of the structure of the polishing apparatus of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
As shown in fig. 1-3, the invention provides a general machine tool for polishing pipes, which comprises a workbench 1, a fixed box 2 is fixedly connected to the upper side of the workbench 1, two opposite sides of the fixed box 2 are open structures, the pipe to be polished passes through and is fixed, a supporting block 21 is fixedly connected to the bottom inside the fixed box 2, a first V-shaped groove is arranged on the upper side of the supporting block 21, a screw 22 is connected to the upper side of the fixed box 2 in a threaded manner, one end of the screw 22 extending into the fixed box 2 is rotatably connected with a lower pressing block 23, two opposite sides of the lower pressing block 23 are respectively fixedly connected with a second sliding block 24, a second sliding groove 25 is arranged on the inner side of the fixed box 2, the second sliding block 24 is slidably connected into the second sliding groove 25, a second V-shaped groove is arranged at the bottom of the lower pressing block 23, the second V-shaped groove is arranged opposite to the first V-shaped groove, the pipe, the second sliding block 24 moves downwards to clamp the pipe, a first sliding groove 11 is arranged on the upper side of the workbench 1, a first sliding block 12 is connected in the first sliding groove 11 in a sliding manner, the first sliding groove 11 is of a dovetail shape, the first sliding block 12 is matched with the first sliding groove 11, a mounting plate 13 is fixedly connected on the upper side of the first sliding block 12, a driving motor 14 is fixedly connected on the mounting plate 13, two vertical plates 15 are fixedly connected on the upper side of the workbench 1, a lead screw 16 is rotatably connected between the two vertical plates 15, a second threaded hole is arranged in the middle of the first sliding block 12, the lead screw 16 penetrates through the second threaded hole and is in threaded fit connection, a grinding device 3 is fixedly connected on a main shaft of the driving motor 14, the grinding device 3 comprises a square rod 31, one end of the square rod 31, far away from the driving motor 14, is symmetrically hinged with two supporting rods 32, a grinding block 33, the two opposite sides of the square sleeve 34 are hinged with a support rod 35, the other end of each support rod 35 is hinged with the support rod 32 in a one-to-one correspondence manner, the square sleeve 34 is provided with a first threaded hole 341, and the first threaded hole 341 is connected with a fixing bolt in a threaded manner. The square sleeve 34 slides on the square rod 31, and is unfolded or contracted through the two support rods 32 to be adjusted to a proper position, so that the grinding block 33 is attached to the edge of the inner hole of the pipe, the inner hole of the pipe with different inner hole apertures is suitable for chamfering and deburring the inner hole of the pipe, and the equipment is high in universality.
Be equipped with the square logical groove 321 in one side on every bracing piece 32, sliding connection I shape slider 5 in leading to the groove 321, bracing piece 32 side is equipped with the third screw hole 51 that the logical groove 321 of intercommunication, third screw hole 51 internal thread connection lock bolt, I shape slider 5 can slide in leading to the groove 321 with the adjustment position, after the adjustment position, it fixes it through lock bolt screw extrusion I shape slider 5, sanding block 33 fixed connection is on I shape slider 5, two supporting spring 6 of fixed connection between sanding block 33 and the I shape slider 5, supporting spring 6 forms the support to sanding block 33, make sanding block 33 laminate the tubular product tip all the time, avoid the influence of tubular product terminal surface injustice, one side that sanding block 33 kept away from I shape slider 5 is the arcwall face.
When using, put tubular product on supporting shoe 21, through rotating screw rod 22, second slider 24 moves down and carries out the centre gripping to the tubular product, rotate lead screw 16, make the hole of sanding block 33 laminating tubular product, square cover 34 slides on square pole 31, expansion or shrink through two bracing pieces 32 and cooperate I shape slider 5 to slide in logical groove 321 with the adjustment position, in order to adjust suitable position, make sanding block 33 paste the hole edge of tubular product, adapt to the tubular product hole chamfer burring in different hole apertures, equipment commonality is high.
Claims (6)
1. The utility model provides a tubular product universal machine tool of polishing, includes workstation (1), workstation (1) upside fixed connection fixed box (2), the both sides that fixed box (2) are relative are open structure, its characterized in that: a first sliding chute (11) is arranged on the upper side of the workbench (1), a first sliding block (12) is connected in the first sliding chute (11) in a sliding mode, a mounting plate (13) is fixedly connected to the upper side of the first sliding block (12), a driving motor (14) is fixedly connected to the mounting plate (13), and a grinding device (3) is fixedly connected to a main shaft of the driving motor (14);
grinding device (3) are including square pole (31), two bracing pieces (32) are connected in the articulated one end symmetry of keeping away from driving motor (14) to square pole (31), are equipped with one on every bracing piece (32) and polish piece (33), square pole (31) outside sliding connection square cover (34), square cover (34) relative both sides are articulated to connect branch (35), every the other end and bracing piece (32) one-to-one of branch (35) are connected with articulated, be equipped with first screw hole (341) on square cover (34), first screw hole (341) internal connection fixing bolt.
2. The pipe grinding universal machine tool of claim 1, wherein: the inside bottom fixed connection supporting shoe (21) of fixed box (2), supporting shoe (21) upside is equipped with first V type groove, fixed box (2) upside threaded connection screw rod (22), the one end that screw rod (22) stretched into in fixed box (2) is rotated and is connected briquetting (23) down, and the relative both sides of briquetting (23) are second slider (24) of fixed connection respectively down, the inboard of fixed box (2) is equipped with second spout (25), second slider (24) sliding connection is in second spout (25), briquetting (23) bottom is equipped with second V type groove down, and second V type groove sets up with first V type groove relatively.
3. The pipe grinding universal machine tool of claim 1, wherein: the upper side of the workbench (1) is fixedly connected with two vertical plates (15), a lead screw (16) is rotatably connected between the two vertical plates (15), a second threaded hole is formed in the middle of the first sliding block (12), and the lead screw (16) penetrates through the second threaded hole and is in threaded fit connection.
4. The pipe grinding universal machine tool of claim 1, wherein: be equipped with square logical groove (321) in one side on every bracing piece (32), sliding connection I shape slider (5) in leading to groove (321), bracing piece (32) side is equipped with third screw hole (51) that the intercommunication led to groove (321), third screw hole (51) female connection lock bolt, sanding block (33) fixed connection is on I shape slider (5).
5. The universal machine tool for grinding pipes as claimed in claim 4, wherein: two supporting springs (6) are fixedly connected between the grinding block (33) and the I-shaped sliding block (5).
6. The pipe grinding universal machine tool of claim 5, wherein: one side of the polishing block (33) far away from the I-shaped sliding block (5) is an arc-shaped surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071923.5A CN110653682A (en) | 2019-11-05 | 2019-11-05 | Pipe polishing universal machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071923.5A CN110653682A (en) | 2019-11-05 | 2019-11-05 | Pipe polishing universal machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110653682A true CN110653682A (en) | 2020-01-07 |
Family
ID=69042946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911071923.5A Pending CN110653682A (en) | 2019-11-05 | 2019-11-05 | Pipe polishing universal machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110653682A (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111376128A (en) * | 2020-04-30 | 2020-07-07 | 李万春 | Cylindrical grinding machine |
| CN111515762A (en) * | 2020-04-27 | 2020-08-11 | 东莞海特帕沃液压科技有限公司 | Hydraulic releasing gadget manufacturing and processing equipment and hydraulic releasing gadget manufacturing process |
| CN111716187A (en) * | 2020-06-16 | 2020-09-29 | 福建和盛塑业有限公司 | Galvanized steel pipe butt-joint treatment method for buried cable protection pipe before welding |
| CN111993193A (en) * | 2020-08-28 | 2020-11-27 | 刘微 | Workpiece polishing machine with adjustable type |
| CN112008528A (en) * | 2020-08-11 | 2020-12-01 | 朱彐燕 | Centrifugal fit type self-adaptive pipe notch burr grinding machine |
| CN112059760A (en) * | 2020-11-16 | 2020-12-11 | 烟台工程职业技术学院(烟台市技师学院) | Novel pipeline is polished device |
| CN112388404A (en) * | 2020-11-05 | 2021-02-23 | 湖南万家工贸实业有限公司 | Oil cylinder polishing device with automatic positioning function for machining |
| CN112454050A (en) * | 2020-11-25 | 2021-03-09 | 包金和 | Steel pipe cutting port deburring device capable of reasonably utilizing waste steel pipes |
| CN112476107A (en) * | 2020-11-26 | 2021-03-12 | 衡阳鸿卫机械有限责任公司 | Polishing device assembly for processing groove of seamless steel pipe |
| CN113172509A (en) * | 2021-06-30 | 2021-07-27 | 新沂市鼎丽塑胶制品有限公司 | Automatic finishing equipment after injection molding of plastic products |
| CN114393462A (en) * | 2021-12-08 | 2022-04-26 | 徐州中嘉木业有限公司 | Energy-concerving and environment-protective circular tubular metal resonator cutting port burr clearance mechanism |
| CN115026674A (en) * | 2022-08-10 | 2022-09-09 | 苏州瑞纳电气科技有限公司 | Automatic chamfering processing device for metal parts developed by asynchronous motor |
| CN116572111A (en) * | 2023-07-12 | 2023-08-11 | 张家港市神鹰机械制造有限公司 | Deburring device for pump body after demolding |
-
2019
- 2019-11-05 CN CN201911071923.5A patent/CN110653682A/en active Pending
Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111515762B (en) * | 2020-04-27 | 2021-10-22 | 佛山市声海精密机械设备有限公司 | Hydraulic releasing gadget manufacturing and processing equipment and hydraulic releasing gadget manufacturing process |
| CN111515762A (en) * | 2020-04-27 | 2020-08-11 | 东莞海特帕沃液压科技有限公司 | Hydraulic releasing gadget manufacturing and processing equipment and hydraulic releasing gadget manufacturing process |
| CN111376128A (en) * | 2020-04-30 | 2020-07-07 | 李万春 | Cylindrical grinding machine |
| CN111376128B (en) * | 2020-04-30 | 2021-10-22 | 安徽中材新材料科技有限公司 | Cylindrical grinding machine |
| CN111716187A (en) * | 2020-06-16 | 2020-09-29 | 福建和盛塑业有限公司 | Galvanized steel pipe butt-joint treatment method for buried cable protection pipe before welding |
| CN111716187B (en) * | 2020-06-16 | 2022-02-25 | 福建和盛塑业有限公司 | Galvanized steel pipe butt-joint treatment method for buried cable protection pipe before welding |
| CN112008528A (en) * | 2020-08-11 | 2020-12-01 | 朱彐燕 | Centrifugal fit type self-adaptive pipe notch burr grinding machine |
| CN111993193A (en) * | 2020-08-28 | 2020-11-27 | 刘微 | Workpiece polishing machine with adjustable type |
| CN112388404A (en) * | 2020-11-05 | 2021-02-23 | 湖南万家工贸实业有限公司 | Oil cylinder polishing device with automatic positioning function for machining |
| CN112059760A (en) * | 2020-11-16 | 2020-12-11 | 烟台工程职业技术学院(烟台市技师学院) | Novel pipeline is polished device |
| CN112454050A (en) * | 2020-11-25 | 2021-03-09 | 包金和 | Steel pipe cutting port deburring device capable of reasonably utilizing waste steel pipes |
| CN112476107A (en) * | 2020-11-26 | 2021-03-12 | 衡阳鸿卫机械有限责任公司 | Polishing device assembly for processing groove of seamless steel pipe |
| CN113172509A (en) * | 2021-06-30 | 2021-07-27 | 新沂市鼎丽塑胶制品有限公司 | Automatic finishing equipment after injection molding of plastic products |
| CN114393462A (en) * | 2021-12-08 | 2022-04-26 | 徐州中嘉木业有限公司 | Energy-concerving and environment-protective circular tubular metal resonator cutting port burr clearance mechanism |
| CN115026674A (en) * | 2022-08-10 | 2022-09-09 | 苏州瑞纳电气科技有限公司 | Automatic chamfering processing device for metal parts developed by asynchronous motor |
| CN116572111A (en) * | 2023-07-12 | 2023-08-11 | 张家港市神鹰机械制造有限公司 | Deburring device for pump body after demolding |
| CN116572111B (en) * | 2023-07-12 | 2023-09-22 | 张家港市神鹰机械制造有限公司 | Deburring device for pump body after demolding |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110653682A (en) | Pipe polishing universal machine tool | |
| CN107511703A (en) | A kind of hardware workpiece fixture for processing | |
| CN1213833C (en) | Machining fixtures for multiple-station bearing pedestal back cambering machine | |
| CN207170988U (en) | A kind of adjustable multifunction hydraulic fixture of numerically controlled lathe | |
| CN205734424U (en) | Sanding apparatus | |
| CN104400633A (en) | Clamp for finely grinding outer circle of eccentric cylinder and method for processing by using clamp | |
| CN202317733U (en) | Finish turning tool for lower section of bottle body | |
| CN211193466U (en) | Auxiliary device for cylindrical grinding of sleeve parts | |
| CN203228053U (en) | Fixture for sleeve-shaped pieces | |
| CN213531987U (en) | Grinding device is used in processing of pneumatic cylinder piston rod | |
| CN209424776U (en) | For auto parts clamping clamp for machining | |
| CN210024536U (en) | Machining center anchor clamps | |
| CN204171860U (en) | For the fixture of eccentric cylinder fine grinding cylinder | |
| CN203650219U (en) | Inner-hole groove cuspidal edge polishing device | |
| CN209304376U (en) | A kind of small-bore round tube angle bistrique | |
| CN2481450Y (en) | Clamp for machining back arc face of wing bearing seat | |
| CN103213064B (en) | Wear-proof casing clamp with adjustable external diameter | |
| CN218310931U (en) | Frock clamp for eccentric car processing | |
| CN211939847U (en) | Novel vertical lathe supporting seat | |
| CN201736087U (en) | Big internal grinding-processing jig for eccentric hole | |
| CN201755871U (en) | Silicon bar cutting machine special fixture capable of turning around | |
| CN208696320U (en) | Lathe is used in cubic pressure machining | |
| CN219882107U (en) | Angle-adjustable machining clamp | |
| CN219767460U (en) | Workpiece fixing device for shaft sleeve machining tool | |
| CN213438427U (en) | Drilling clamp capable of improving clamping efficiency |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200107 |