CN117001258A - Short elbow pipeline welding device - Google Patents
Short elbow pipeline welding device Download PDFInfo
- Publication number
- CN117001258A CN117001258A CN202310976290.2A CN202310976290A CN117001258A CN 117001258 A CN117001258 A CN 117001258A CN 202310976290 A CN202310976290 A CN 202310976290A CN 117001258 A CN117001258 A CN 117001258A
- Authority
- CN
- China
- Prior art keywords
- push rod
- fixedly arranged
- electric push
- clamping plate
- pipeline
- 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
- 238000003466 welding Methods 0.000 title claims abstract description 61
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 2
- 230000001681 protective effect Effects 0.000 description 8
- 239000000758 substrate Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000002146 bilateral effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000001012 protector Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/053—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor
- B23K37/0533—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work aligning cylindrical work; Clamping devices therefor external pipe alignment clamps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/047—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work moving work to adjust its position between soldering, welding or cutting steps
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a short elbow pipeline welding device which comprises a base plate, wherein a stepping motor is fixedly arranged at the top of the base plate, a driving gear is fixedly arranged on an output shaft of the stepping motor, and a transmission rod is rotatably connected to the top of the base plate through a bearing. According to the invention, the third electric push rod is retracted to clamp the pipeline body, the first electric push rod is retracted to clamp the short elbow pipeline, the second electric push rod is opened to drive the pipeline body to move downwards, the pipeline body is conveniently aligned with the short elbow pipeline, the welding machine body and the fifth electric push rod are opened, the welding machine head can be used for welding the interfaces of the welding machine body and the fifth electric push rod, the fourth electric push rod is opened, the height of the welding machine head can be adjusted, the welding position can be conveniently adjusted according to the size of the short elbow pipeline, after the spot welding is finished, the third electric push rod can be extended to loosen the pipeline body, the stepping motor is opened, the short elbow pipeline and the pipeline body can be driven to rotate, and the welding is convenient and comprehensive.
Description
Technical Field
The invention relates to the technical field of short elbow pipeline welding, in particular to a short elbow pipeline welding device.
Background
In the welding process of the short elbow pipeline, the cut short elbow is trimmed firstly, then burrs are trimmed, alcohol is used for carrying out surface treatment after finishing, the short elbow is spliced by spot welding, the short elbow is fixed by a circular ring section type clamp, a welding gun is aligned with the center distance of a welding seam of the spliced elbow, shielding gas is argon with the content of 99.999%, and then welding is carried out, but the traditional welding device is inconvenient to rotate the pipeline and inconvenient to align the pipeline.
Patent publication number CN212350739U discloses "a short elbow pipeline welding set", the on-line screen storage device comprises a base, a pair of pipeline clamping device of sliding fit bilateral symmetry on the base, pipeline clamping device includes the support column, the support column rotates the cooperation holder through the rotating device who sets up, the holder includes the centre gripping support diaphragm and with the grip pad of short pipeline curved surface looks adaptation, rotating device includes first one-way bearing and the fixed second one-way bearing that sets up on the support column, the second one-way bearing is connected with the centre gripping support diaphragm, first one-way bearing fixed connection locating part, the locating part embolias the cooperation with the centre gripping support diaphragm, be equipped with in the support column and supply first one-way bearing gliding spout, first one-way bearing pivoted direction is opposite with second one-way bearing pivoted direction, can stably grasp short elbow pipeline through the grip pad, rotating device's design can realize better welded position, but its degree of automation is lower, need the manual work to rotate the pipeline when pipeline welding, for this reason, we propose a short elbow pipeline welding set.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the invention aims to provide a short elbow pipeline welding device, which realizes the purposes of facilitating the rotation of a pipeline and the alignment of the pipeline, and solves the problems that the traditional welding device is inconvenient to rotate the pipeline and the alignment of the pipeline is inconvenient.
(II) technical scheme
The technical scheme is that the short elbow pipeline welding device comprises a base plate, a stepping motor is fixedly arranged at the top of the base plate, a driving gear is fixedly arranged at an output shaft of the stepping motor, a transmission rod is rotatably connected to the top of the base plate through a bearing, a driven gear is fixedly arranged on the surface of the transmission rod, a first left clamping plate is fixedly arranged at the top of the transmission rod through a support, a first electric push rod is fixedly arranged on the front of the first left clamping plate through a support, a first right clamping plate is fixedly arranged at the output end of the first electric push rod through a support, a guard plate is fixedly arranged on the right side of the top of the base plate, a second electric push rod is fixedly arranged at the top of an inner cavity of the guard plate, a connecting block is fixedly arranged at the output end of the second electric push rod, a third electric push rod is fixedly arranged on the left side of the connecting block through a support, a second left clamping plate is fixedly arranged at the output end of the third electric push rod, a welding machine is fixedly arranged between the second right clamping plate and the third electric push rod, a welding machine is fixedly arranged at the right side of the output end of the fourth electric push rod, a welding machine is fixedly arranged at the right side of the top of the welding machine, and a welding machine is fixedly arranged at the output end of the fourth electric push rod is fixedly arranged at the top of the fourth electric push rod, and a welding machine is fixedly arranged at the top of the electric push rod.
Preferably, a protective cover is arranged on the top of the substrate, and a corrosion-resistant coating is smeared on the surface of the protective cover.
As the preferable scheme, the right side fixed mounting of connecting block has the direction slider, the guide spout has been seted up to the inner chamber of backplate.
As the preferable scheme, the inner cavities of the first left clamping plate, the first right clamping plate, the second right clamping plate and the second left clamping plate are all provided with grooves, and the inner cavities of the grooves are provided with heat-insulating rubber pads.
As the preferable scheme, the right side of second right grip block is through support fixed mounting has the guide ring, and the inner chamber of guide ring has seted up the round hole.
Preferably, a control panel is arranged on the right side of the guard plate, and a protective film is arranged on the surface of the control panel.
Preferably, a battery box is arranged on the right side of the substrate, and a storage battery is arranged in an inner cavity of the battery box.
(III) beneficial effects
Compared with the prior art, the invention provides the short elbow pipeline welding device which has the following beneficial effects.
According to the invention, the third electric push rod is retracted to clamp the pipeline body, the first electric push rod is retracted to clamp the short elbow pipeline, the second electric push rod is opened to drive the pipeline body to move downwards, the pipeline body is conveniently aligned with the short elbow pipeline, the welding machine body and the fifth electric push rod are opened, the welding machine head can be used for welding the interfaces of the welding machine body and the fifth electric push rod, the fourth electric push rod is opened, the height of the welding machine head can be adjusted, the welding position can be conveniently adjusted according to the size of the short elbow pipeline, after the spot welding is finished, the third electric push rod can be extended to loosen the pipeline body, the stepping motor is opened, the short elbow pipeline and the pipeline body can be driven to rotate, and the welding is convenient and comprehensive.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of a front view structure of the present invention;
FIG. 3 is a schematic diagram of a cross-sectional enlarged structure of a guard plate of the present invention;
fig. 4 is a schematic diagram of a cross-sectional enlarged structure of a protective cover according to the present invention.
In the figure: 1. a substrate; 2. a stepping motor; 3. a drive gear; 4. a transmission rod; 5. a driven gear; 6. a protective cover; 7. a first left clamping plate; 8. a first electric push rod; 9. a first right clamping plate; 10. a guard board; 11. a second electric push rod; 12. a connecting block; 13. a guide slide block; 14. a guide chute; 15. a second right clamping plate; 16. a third electric push rod; 17. a second left clamping plate; 18. a pipe body; 19. a guide ring; 20. a fourth electric push rod; 21. a support plate; 22. a welder body; 23. a welder head; 24. a fifth electric push rod; 25. a fixing ring; 26. a control panel; 27. and a battery box.
Detailed Description
Embodiments of the present invention are described in further detail below with reference to the accompanying drawings and examples. The following examples are illustrative of the invention but are not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the invention and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1-4, the present invention: the utility model provides a short elbow pipeline welding set, including base plate 1, the top fixed mounting of base plate 1 has step motor 2, step motor 2's output shaft fixed mounting has driving gear 3, the top of base plate 1 is connected with transfer line 4 through the bearing rotation, transfer line 4's fixed surface installs driven gear 5, transfer line 4's top is through support fixed mounting has first left grip block 7, first left grip block 7's front is through support fixed mounting has first electric putter 8, the output of first electric putter 8 is through support fixed mounting has first right grip block 9, the right side fixed mounting at base plate 1 top has backplate 10, the top fixed mounting of backplate 10 inner chamber has second electric putter 11, the output fixed mounting of second electric putter 11 has connecting block 12, the left side of connecting block 12 is through support fixed mounting has second right grip block 15, the front of second right grip block 15 has third electric putter 16 through support fixed mounting, the output fixed mounting of third electric putter 16 has second left grip block 17, be provided with pipeline body 18 between second right grip block 15 and the third electric putter 16, the output of first electric putter 8 is through support fixed mounting has first right grip block 9, the right side fixed mounting of base plate 1 has first electric putter body 20, the fixed mounting of electric putter body of fourth 22 and the fourth fixed mounting of electric putter 22, the fixed mounting of welding machine 25 fixed mounting of fifth electric putter body 25, the fixed mounting of fourth electric putter body of fourth fixed mounting of electric putter 22, the output 22 fixed mounting of fourth electric putter body of electric putter body 25, the fixed mounting of fourth electric putter body 25 is fixed mounting of connecting plate 22, the right side of connecting block 12 is fixed mounting of connecting plate 12 is fixed mounting of electric putter 16 is fixed mounting through the electric putter 16.
The top of the substrate 1 is provided with a protective cover 6, and the surface of the protective cover 6 is coated with a corrosion-resistant coating.
Through the technical scheme, the circle center of the transmission rod 4 and the circle center of the pipeline body 18 are in the same line, the protection cover 6 plays a role in dust prevention, and the circle center of the transmission rod 4 and the circle center of the pipeline body 18 are in the same line, so that the transmission rod 4 can drive the pipeline body 18 to rotate when rotating.
The right side of the connecting block 12 is fixedly provided with a guide sliding block 13, and the inner cavity of the guard plate 10 is provided with a guide sliding groove 14.
Through the technical scheme, the guide sliding block 13 and the guide sliding groove 14 guide the connecting block 12, so that the connecting block 12 is stable in moving.
The inner cavities of the first left clamping plate 7, the first right clamping plate 9, the second right clamping plate 15 and the second left clamping plate 17 are all provided with grooves, and the inner cavities of the grooves are provided with heat-insulating rubber pads.
Through above-mentioned technical scheme, the recess is convenient to carry out spacingly to pipeline body 18 and return bend, and thermal-insulated rubber pad can prevent that first left grip block 7, first right grip block 9, second right grip block 15 and second left grip block 17 from overheated, and can make pipeline body 18 and return bend by the more firm of centre gripping.
The right side of the second right clamping plate 15 is fixedly provided with a guide ring 19 through a bracket, and the inner cavity of the guide ring 19 is provided with a round hole.
Through the above technical scheme, the guide ring 19 can limit the pipeline body 18, and prevent the pipeline body 18 from tilting when the pipeline body 18 rotates.
The right side of the protector plate 10 is provided with a control panel 26, and the surface of the control panel 26 is provided with a protective film.
Through the above technical scheme, the guard plate 10 is used for controlling the switch of each electric appliance.
A battery box 27 is provided on the right side of the substrate 1, and a storage battery is provided in an inner cavity of the battery box 27.
By the above technical solution, the accumulator in the battery box 27 provides standby electric energy for the device.
The working principle of the invention is as follows: the pipeline body 18 is placed between the second right clamping plate 15 and the second left clamping plate 17, the third electric push rod 16 is retracted to clamp the pipeline body, the short elbow pipeline is placed between the first left clamping plate 7 and the first right clamping plate 9, the second electric push rod 11 is opened to push the connecting block 12 to move downwards, the pipeline body 18 is driven to butt against the short elbow pipeline, the short elbow pipeline is adjusted to align interfaces of the short elbow pipeline and the first right clamping plate 9, the first electric push rod 8 is retracted to drive the first right clamping plate 9 to move leftwards, the short elbow pipeline can be clamped, the fourth electric push rod 20 is opened to push the supporting plate 21 to move upwards, the height of the welding head 23 is adjusted, the welding head 23 is aligned with the interface, the fifth electric push rod 24 is opened to push the welding head 23 to move rightwards, the welding body 22 is opened, the interface of the short elbow pipeline and the pipeline body 18 can be subjected to spot welding, after spot welding is finished, the third electric push rod 16 is extended, the pipeline body 18 is loosened, the guide ring 19 can prevent the pipeline body 18 from inclining, the stepping motor 2 is opened to drive the driving gear 3 to rotate, the driving gear 3 drives the driven gear 5 to rotate, the driven gear 5 to drive the driving 4 to rotate, the driving 4 to drive the driving 4 to rotate the driving 4 to drive the first electric push rod 7 and the first right clamping plate 8 to rotate the first electric push rod to drive the short elbow 18 to rotate, and the whole clamping plate to rotate, thereby welding is convenient to rotate and the whole to clamp the first left and the first electric push rod to rotate.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. Short elbow pipeline welding set, including base plate (1), its characterized in that: the utility model discloses a device for fixing a pipeline, which comprises a base plate (1), a driving gear (3) fixedly arranged at the top of the base plate (1), a transmission rod (4) rotatably connected at the top of the base plate (1) through a bearing, a driven gear (5) fixedly arranged at the surface of the transmission rod (4), a first left clamping plate (7) fixedly arranged at the top of the transmission rod (4) through a bracket, a first electric push rod (8) fixedly arranged at the front of the first left clamping plate (7) through a bracket, a first right clamping plate (9) fixedly arranged at the output end of the first electric push rod (8), a guard plate (10) fixedly arranged at the right side of the top of the base plate (1), a second electric push rod (11) fixedly arranged at the top of an inner cavity of the guard plate (10), a connecting block (12) fixedly arranged at the output end of the second electric push rod (11), a second right clamping plate (15) fixedly arranged at the left side of the connecting block (12) through a bracket, a first electric push rod (8) fixedly arranged at the front of the second right clamping plate (15) through a bracket, a third electric push rod (16) fixedly arranged at the front of the second right clamping plate (16) and a third electric push rod (16) fixedly arranged at the output end of the third push rod (16), the left side fixed mounting at base plate (1) top has fourth electric putter (20), the output fixed mounting of fourth electric putter (20) has backup pad (21), the top fixed mounting of backup pad (21) has welding machine body (22), the right side of welding machine body (22) is provided with welding machine head (23), the right side fixed mounting of welding machine body (22) has fifth electric putter (24), the output fixed mounting of fifth electric putter (24) has solid fixed ring (25), and solid fixed ring (25) and welding machine head (23) fixed connection.
2. A short bend pipe welding apparatus according to claim 1, wherein: the top of base plate (1) is provided with protection casing (6), and the surface of protection casing (6) is scribbled corrosion-resistant coating.
3. A short bend pipe welding apparatus according to claim 1, wherein: the right side of connecting block (12) fixed mounting has direction slider (13), guide chute (14) have been seted up to the inner chamber of backplate (10).
4. A short bend pipe welding apparatus according to claim 1, wherein: the inner cavities of the first left clamping plate (7), the first right clamping plate (9), the second right clamping plate (15) and the second left clamping plate (17) are respectively provided with a groove, and the inner cavities of the grooves are provided with heat-insulating rubber pads.
5. A short bend pipe welding apparatus according to claim 1, wherein: the right side of the second right clamping plate (15) is fixedly provided with a guide ring (19) through a bracket, and the inner cavity of the guide ring (19) is provided with a round hole.
6. A short bend pipe welding apparatus according to claim 1, wherein: the right side of backplate (10) is provided with control panel (26), and the surface of control panel (26) is provided with the protection film.
7. A short bend pipe welding apparatus according to claim 1, wherein: a battery box (27) is arranged on the right side of the base plate (1), and a storage battery is arranged in an inner cavity of the battery box (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310976290.2A CN117001258A (en) | 2023-08-04 | 2023-08-04 | Short elbow pipeline welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310976290.2A CN117001258A (en) | 2023-08-04 | 2023-08-04 | Short elbow pipeline welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117001258A true CN117001258A (en) | 2023-11-07 |
Family
ID=88573998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310976290.2A Pending CN117001258A (en) | 2023-08-04 | 2023-08-04 | Short elbow pipeline welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117001258A (en) |
-
2023
- 2023-08-04 CN CN202310976290.2A patent/CN117001258A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216680696U (en) | Steel pipe welding platform with polishing function | |
| CN220427404U (en) | Short elbow pipeline welding device | |
| CN111015039A (en) | Propeller welding equipment for small ship | |
| CN215509414U (en) | Automatic submerged arc welding device | |
| CN214921277U (en) | Welding device for thick steel plate of wind power tower | |
| CN117001258A (en) | Short elbow pipeline welding device | |
| CN114346507A (en) | Automatic welding system for electric bicycle pipe fittings | |
| CN217647869U (en) | Welding device for high-efficiency production of steel pipe tower | |
| CN217433244U (en) | Processing device with adjustable embedded pipe groove angle | |
| CN213933424U (en) | Device for detecting bending property of thermal spraying coating | |
| CN211465602U (en) | General precision equipment processing is with centre gripping equipment that has protective structure | |
| CN213916887U (en) | Convenient adjustment adjusting mechanism for welding jig | |
| CN215941136U (en) | A high-efficient equipment of bending for machining | |
| CN218745736U (en) | Welding equipment is used in processing of generator casing | |
| CN211805051U (en) | Turnover device for processing automobile parts | |
| CN212420141U (en) | Welding device for hardware tool box of limiting mechanism | |
| CN215941942U (en) | Automatic welding manipulator for automobile chassis | |
| CN217860416U (en) | Connecting pipe bi-polar equipment of polishing convenient to centre gripping | |
| CN215394195U (en) | Diamond gyro wheel processing that facilitates use is with grinding device | |
| CN221047710U (en) | Pipeline fixing device suitable for different bore diameters | |
| CN219005081U (en) | Automatic welding positioning device for door handle | |
| CN215785904U (en) | Bending device for machining triangular ring with pipe | |
| CN111469009B (en) | Energy-concerving and environment-protective pipe welding seam grinding device | |
| CN218487564U (en) | Signal ring welding clamping device | |
| CN216177180U (en) | Cutting device for pipeline installation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |