CN112974947A - Bidirectional milling head capable of independently outputting 90 degrees - Google Patents
Bidirectional milling head capable of independently outputting 90 degrees Download PDFInfo
- Publication number
- CN112974947A CN112974947A CN202110311515.3A CN202110311515A CN112974947A CN 112974947 A CN112974947 A CN 112974947A CN 202110311515 A CN202110311515 A CN 202110311515A CN 112974947 A CN112974947 A CN 112974947A
- Authority
- CN
- China
- Prior art keywords
- shaft
- bevel gear
- axle
- shell
- locating pin
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
- B23C9/005—Details or accessories so far as specially adapted to milling machines or cutter milling heads
Abstract
The invention discloses a bidirectional milling head capable of independently outputting 90 degrees, which improves the processing efficiency. The automatic centering device comprises an upper shell, a lower shell and an upper bearing support, wherein the upper shell and the upper bearing support are enclosed to form an upper cavity, the lower shell and the upper bearing support are enclosed to form a lower cavity, the automatic centering device also comprises an A shaft and an A shaft second bevel gear, the A shaft is supported on the upper bearing support through a bearing, the output end of the A shaft is sleeved with an A shaft first bevel gear through a needle bearing, a synchronizing ring is in spline fit with the A shaft, and one end of the A shaft first bevel gear is provided with synchronizing teeth for being matched with the synchronizing ring; install the B axle through the bearing respectively in the inferior valve body, the C axle, the D axle, the B axle is fixed with B axle bevel gear, the C axle is fixed with C axle bevel gear, the D axle is fixed with D axle bevel gear, B axle bevel gear meshes with the first bevel gear of A axle, D axle bevel gear meshes with A axle second bevel gear, C axle bevel gear meshes with B axle bevel gear, the outside end of C axle, the outside end of D axle is equipped with milling cutter mounting structure respectively.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a bidirectional milling head capable of independently outputting 90 degrees.
Background
Along with the development of the manufacturing industry, the requirements on the machining precision and the machining speed of parts are higher and higher, in order to meet the requirements, a plurality of milling heads with different structures appear on the market, the machining quality is guaranteed, the machining range of a machine tool is expanded, and the machining efficiency is improved. The milling head with bidirectional output can complete the simultaneous processing of two planes with higher coaxiality or parallelism requirements, but the prior milling head can only realize the simultaneous output of two directions at the same rotating speed, and the output directions are on the same axis, thereby reducing the working efficiency.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, provides the bidirectional milling head capable of independently outputting 90 degrees, and improves the processing efficiency. The differential machining can be completed according to different machining requirements.
The purpose of the invention is realized as follows:
a bidirectional milling head capable of independently outputting 90 degrees,
comprises an upper shell, a lower shell and an upper bearing support connected between the upper shell and the lower shell, wherein the upper shell and the upper bearing support enclose an upper cavity, the lower shell and the upper bearing support enclose a lower cavity,
the gear comprises an A shaft and an A shaft, and is characterized by further comprising a Latin, a cutter handle, an A shaft and an A shaft second bevel gear which are sequentially connected, wherein the A shaft is supported on an upper bearing support through a bearing, the input end of the A shaft is positioned in the upper cavity, the output end of the A shaft is positioned in the lower cavity, the output end of the A shaft is sleeved with an A shaft first bevel gear through a needle bearing, a synchronizing ring is in spline fit on the A shaft, and one end of the A shaft first bevel gear is provided with synchronizing teeth for being matched with the synchronizing ring;
a shaft B, a shaft C and a shaft D are respectively installed in the lower shell through bearings, a shaft B bevel gear is fixed at the inner side end of the shaft B, a shaft C bevel gear is fixed at the inner side end of the shaft C, a shaft D bevel gear is fixed at the inner side end of the shaft D, the shaft B bevel gear is meshed with a first bevel gear of the shaft A, the shaft D bevel gear is meshed with a second bevel gear of the shaft A, the shaft C bevel gear is meshed with the shaft B bevel gear, and a milling cutter installation structure is respectively arranged at the outer side end of the shaft C and the outer side end of the shaft D.
Preferably, a positioning pin shell is fixed on one side of the upper shell, a positioning pin is axially matched in the positioning pin shell in a sliding manner, a screw is matched with the positioning pin shell along a radial thread, the screw is used for locking the axial position of the positioning pin, at least one end of the positioning pin extends out of the positioning pin shell, and an extending end of the positioning pin is provided with an adjusting sleeve.
Preferably, the tool shank is a BT40 tool shank.
Preferably, the milling cutter mounting structure includes an axial hole provided on the C-axis/D-axis, a milling cutter chuck is provided in the axial hole, a fastening end cover is provided at an orifice of the axial hole, an end cover is provided at the C-axis/D-axis end of the lower housing, the fastening end cover is fixed on the C-axis/D-axis and is matched with the end cover, and a fastening nut is provided on the fastening end cover and is used for fixing the milling cutter chuck.
Preferably, the input end of the A shaft is sealed with the upper shell through a sealing ring.
Preferably, the first bevel gear of the A shaft and the bevel gear of the B shaft have the same module and different teeth number, so that variable speed transmission is realized, and the second bevel gear of the A shaft and the bevel gear of the D shaft have the same module and different teeth number, so that variable speed transmission is realized.
Preferably, the shafts B and D are parallel to each other, and the shafts A and C are coaxial, so that the same-speed transmission of the shafts A and C is realized.
Preferably, the synchronizing ring is matched with the shifting fork and used for shifting the synchronizing ring to enable the synchronizing ring to be meshed with or separated from the synchronizing teeth.
By adopting the technical scheme, the milling power is transmitted by connecting the tool holder with the main shaft of the machine tool, the reversing power is provided by the bevel gear, and the bidirectional processing shaft of the tool is in an angle of 90 degrees, so that the verticality requirement of the adjacent processing surfaces is met. The transverse milling head can be independently output, tool changing or equipment replacement in the machining process is reduced, and machining efficiency is improved. The differential machining can be completed according to different machining requirements.
The invention has the following beneficial effects:
1) the bidirectional machining of 90 degrees can be realized;
2) the independent operation of the milling head can be realized;
3) the processing efficiency is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic top view of fig. 1.
Reference numerals
In the drawing, 1, a latin square, 2, a BT40 knife handle, 3, a locating pin, 4, an adjusting sleeve, 5, a locating pin shell, 6, a screw, 7, an upper shell, 8, a clamping plate, 9, an upper bearing support, 10, an A shaft first bevel gear, 11, a lower shell, 12, a synchronizer (composed of a synchronizing ring, a shifting fork and a synchronizing tooth), 13, a shifting fork, 14, an A shaft second bevel gear, 15, a D shaft bevel gear, 16, a fastening nut B, 17, a milling cutter chuck B, 18, a fastening end cover B, 19, a D shaft, 20, a sleeve D, 21, a lower box, 22, a D shaft bevel gear, 23, a C shaft, 24, a C shaft end cover, 25, a sleeve C, 26, a fastening end cover A, 27, a milling cutter chuck A, 28, a fastening nut A, 29, B shaft bevel gear, 30, a B shaft end cover, 31, a B shaft, 32, a synchronizing ring, 34, a bearing, 35, a supporting sleeve ring, 36, a supporting sleeve, shaft A, 38 sealing ring.
Detailed Description
Referring to fig. 1 and 2, the bidirectional milling head capable of independently outputting 90 degrees comprises an upper shell, a lower shell and an upper bearing support connected between the upper shell and the lower shell, wherein the upper shell and the upper bearing support enclose an upper cavity, and the lower shell and the upper bearing support enclose a lower cavity.
The 90-degree bidirectional milling head further comprises a latin, a cutter handle, an A shaft and a second bevel gear of the A shaft which are connected in sequence, and the cutter handle is a BT40 cutter handle. The shaft A is supported on the upper bearing support through a bearing, and the input end of the shaft A is sealed with the upper shell through a sealing ring. The input of A axle is located the epicoele internal, and the output of A axle is located the cavity down internal, and the first bevel gear of A axle has been cup jointed through bearing to the output of A axle, the spline fit has the synchronizer ring on the A axle, the first bevel gear one end of A axle is equipped with synchronous tooth for with the synchronizer ring cooperation. The synchronizing ring is matched with the gear shifting fork and used for shifting the synchronizing ring to enable the synchronizing ring to be meshed with and separated from the synchronizing teeth.
A shaft B, a shaft C and a shaft D are installed in the lower shell body through bearings respectively, the shaft B and the shaft D are parallel to each other, the shaft A and the shaft C are coaxial, and the same-speed transmission of the shaft A and the shaft C is achieved. A B-axis bevel gear is fixed at the inner side end of the B axis, a C-axis bevel gear is fixed at the inner side end of the C axis, a D-axis bevel gear is fixed at the inner side end of the D axis, the B-axis bevel gear is meshed with the first bevel gear of the A axis, the D-axis bevel gear is meshed with the second bevel gear of the A axis, the C-axis bevel gear is meshed with the B-axis bevel gear, and a milling cutter mounting structure is respectively arranged at the outer side end of the C axis and the outer side end of the D axis. The first bevel gear of the A shaft and the bevel gear of the B shaft have the same module and different tooth numbers, so that variable-speed transmission is realized, and the second bevel gear of the A shaft and the bevel gear of the D shaft have the same module and different tooth numbers, so that variable-speed transmission is realized.
The locating pin structure is characterized in that a locating pin shell is fixed on one side of the upper shell, a locating pin is arranged in the locating pin shell in a sliding fit mode along the axial direction, a screw is arranged on the locating pin shell in a threaded fit mode along the radial direction and used for locking the axial position of the locating pin, at least one end of the locating pin extends out of the locating pin shell, and an adjusting sleeve is arranged at the extending end of the locating pin.
The milling cutter mounting structure comprises an axial hole formed in a C shaft/D shaft, a milling cutter chuck is arranged in the axial hole, a fastening end cover is arranged at an orifice of the axial hole, shaft end covers are respectively arranged at the C shaft end/D shaft end of the lower shell, the fastening end covers are fixed on the C shaft/D shaft and matched with the shaft end covers, and fastening nuts are arranged on the fastening end covers and used for fixing the milling cutter chuck.
The 90-degree bidirectional differential milling head is connected with a machine tool spindle through a BT40 cutter handle and an A shaft, two bevel gears are mounted on the A shaft, and the two bevel gears are respectively meshed with a bevel gear of a D shaft of a B shaft to transmit power. The first bevel gear of the A shaft is connected with the A shaft through a needle bearing, when a synchronizing ring is not connected with the A shaft, the first bevel gear of the A shaft is not driven by the rotation of the A shaft to rotate together, the first bevel gear of the A shaft is locked with the A shaft through the synchronizing ring at the position of a shifting fork, the first bevel gear of the A shaft and the A shaft run synchronously at the moment, the first bevel gear of the A shaft and the bevel gear of the B shaft are meshed with each other, power can be transmitted from the A shaft to the B shaft, the bevel gear of the B shaft is meshed with the bevel gear of the D shaft, the power is transmitted to the C shaft, and the independent output of the bidirectional milling head is realized.
The detailed transmission route is as follows:
d-axis rotation: the BT-40 knife handle 2 is connected through the Latin 1, the BT40 knife handle 2 is in threaded connection with the A shaft 37, the A shaft 37 is connected with the A shaft second bevel gear 14 through screws, the A shaft second bevel gear 14 is meshed with the D shaft bevel gear 15, the D shaft bevel gear 15 is connected with the D shaft 19 through screws, the D shaft 19 is connected with the fastening end cover B18 through screws, and the fastening end cover B18 is in threaded connection with the fastening nut B16.
C, rotation of an axis: when the shift fork position of shifting is in the top, C axle begins to rotate. BT40 handle of a knife 2 is connected through latin 1, BT40 handle of a knife 2 threaded connection A axle 37, A axle 37 passes through splined connection with synchronizer ring 33, synchronizer ring 33 passes through the key-type connection with the first bevel gear 10 of A axle, the first bevel gear 10 of A axle meshes with B axle bevel gear 29 mutually, B axle bevel gear 29 meshes with D axle bevel gear 22 mutually, D axle bevel gear 22 passes through screwed connection with C axle 23, C axle 23 passes through screwed connection with fastening end cover A26, fastening end cover A26 passes through threaded connection with fastening nut A28.
Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.
Claims (8)
1. A can independently export 90 two-way cutter head which characterized in that:
comprises an upper shell, a lower shell and an upper bearing support connected between the upper shell and the lower shell, wherein the upper shell and the upper bearing support enclose an upper cavity, the lower shell and the upper bearing support enclose a lower cavity,
the gear comprises an A shaft and an A shaft, and is characterized by further comprising a Latin, a cutter handle, an A shaft and an A shaft second bevel gear which are sequentially connected, wherein the A shaft is supported on an upper bearing support through a bearing, the input end of the A shaft is positioned in the upper cavity, the output end of the A shaft is positioned in the lower cavity, the output end of the A shaft is sleeved with an A shaft first bevel gear through a needle bearing, a synchronizing ring is in spline fit on the A shaft, and one end of the A shaft first bevel gear is provided with synchronizing teeth for being matched with the synchronizing ring;
a shaft B, a shaft C and a shaft D are respectively installed in the lower shell through bearings, a shaft B bevel gear is fixed at the inner side end of the shaft B, a shaft C bevel gear is fixed at the inner side end of the shaft C, a shaft D bevel gear is fixed at the inner side end of the shaft D, the shaft B bevel gear is meshed with a first bevel gear of the shaft A, the shaft D bevel gear is meshed with a second bevel gear of the shaft A, the shaft C bevel gear is meshed with the shaft B bevel gear, and a milling cutter installation structure is respectively arranged at the outer side end of the shaft C and the outer side end of the shaft D.
2. The bidirectional milling head capable of independently outputting 90 ° according to claim 1, wherein: the locating pin structure is characterized in that a locating pin shell is fixed on one side of the upper shell, a locating pin is arranged in the locating pin shell in a sliding fit mode along the axial direction, a screw is arranged on the locating pin shell in a threaded fit mode along the radial direction and used for locking the axial position of the locating pin, at least one end of the locating pin extends out of the locating pin shell, and an adjusting sleeve is arranged at the extending end of the locating pin.
3. The bidirectional milling head capable of independently outputting 90 ° according to claim 1, wherein: the knife handle is a BT40 knife handle.
4. The bidirectional milling head capable of independently outputting 90 ° according to claim 1, wherein: the milling cutter mounting structure comprises an axial hole formed in a C shaft/D shaft, a milling cutter chuck is arranged in the axial hole, a fastening end cover is arranged at an orifice of the axial hole, shaft end covers are respectively arranged at the C shaft end/D shaft end of the lower shell, the fastening end covers are fixed on the C shaft/D shaft and matched with the shaft end covers, and fastening nuts are arranged on the fastening end covers and used for fixing the milling cutter chuck.
5. The bidirectional milling head capable of independently outputting 90 ° according to claim 1, wherein: the input end of the shaft A and the upper shell are sealed through a sealing ring.
6. The bidirectional milling head capable of independently outputting 90 ° according to claim 1, wherein: the first bevel gear of the A shaft and the bevel gear of the B shaft have the same module and different tooth numbers, so that variable-speed transmission is realized, and the second bevel gear of the A shaft and the bevel gear of the D shaft have the same module and different tooth numbers, so that variable-speed transmission is realized.
7. The bidirectional milling head capable of independently outputting 90 ° according to claim 6, wherein: the B shaft and the D shaft are parallel to each other, and the A shaft and the C shaft are coaxial, so that the same-speed transmission of the A shaft and the C shaft is realized.
8. The bidirectional milling head capable of independently outputting 90 ° according to claim 1, wherein: the synchronizing ring is matched with the gear shifting fork and used for shifting the synchronizing ring to enable the synchronizing ring to be meshed with and separated from the synchronizing teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110311515.3A CN112974947A (en) | 2021-03-24 | 2021-03-24 | Bidirectional milling head capable of independently outputting 90 degrees |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110311515.3A CN112974947A (en) | 2021-03-24 | 2021-03-24 | Bidirectional milling head capable of independently outputting 90 degrees |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112974947A true CN112974947A (en) | 2021-06-18 |
Family
ID=76333279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110311515.3A Pending CN112974947A (en) | 2021-03-24 | 2021-03-24 | Bidirectional milling head capable of independently outputting 90 degrees |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112974947A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433922A (en) * | 2022-03-07 | 2022-05-06 | 中国北方车辆研究所 | Low-cost simple universal milling head device |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1462063A (en) * | 1973-12-10 | 1977-01-19 | Hure Sa | Universal head for a milling machine |
| CN2083089U (en) * | 1990-02-17 | 1991-08-21 | 蔡汉村 | Universal tool apron of milling planer |
| CN201711768U (en) * | 2010-07-16 | 2011-01-19 | 南京宁庆数控机床制造有限公司 | Pentahedral milling head for numerically-controlled gantry machining center |
| CN202824798U (en) * | 2012-04-19 | 2013-03-27 | 白银有色集团股份有限公司 | Milling machine cutter rest |
| CN203649517U (en) * | 2014-01-17 | 2014-06-18 | 刘成柱 | High-rotating-speed high-rigidity large-torque extension milling head for right-angled machining |
| CN203778781U (en) * | 2014-01-23 | 2014-08-20 | 滕州市大地机床股份有限公司 | Dual-purpose gearbox for milling machine |
| CN206898466U (en) * | 2017-07-12 | 2018-01-19 | 深圳市钛吉多轴数控机床有限公司 | Vertical horizontal-milling head at a high speed |
| CN108213530A (en) * | 2018-01-15 | 2018-06-29 | 重庆科技学院 | Numerical control is adjustable universal side milling device |
| CN109202510A (en) * | 2018-11-14 | 2019-01-15 | 霍山嘉远智能制造有限公司 | CNC milling machine bidirectional output angular milling head |
| CN209439504U (en) * | 2018-11-21 | 2019-09-27 | 泉州市日旭精密机械有限公司 | Horizontal-vertical double-purpose milling head |
| CN210413680U (en) * | 2019-08-03 | 2020-04-28 | 苏州安驭邦机械有限公司 | Main shaft speed changing device of accessory milling head |
| CN211249266U (en) * | 2019-08-07 | 2020-08-14 | 苏州安驭邦机械有限公司 | Cutter head device for bidirectionally mounting cutter |
| CN112222503A (en) * | 2020-10-23 | 2021-01-15 | 重庆科技学院 | 180 two-way differential cutter head |
-
2021
- 2021-03-24 CN CN202110311515.3A patent/CN112974947A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1462063A (en) * | 1973-12-10 | 1977-01-19 | Hure Sa | Universal head for a milling machine |
| CN2083089U (en) * | 1990-02-17 | 1991-08-21 | 蔡汉村 | Universal tool apron of milling planer |
| CN201711768U (en) * | 2010-07-16 | 2011-01-19 | 南京宁庆数控机床制造有限公司 | Pentahedral milling head for numerically-controlled gantry machining center |
| CN202824798U (en) * | 2012-04-19 | 2013-03-27 | 白银有色集团股份有限公司 | Milling machine cutter rest |
| CN203649517U (en) * | 2014-01-17 | 2014-06-18 | 刘成柱 | High-rotating-speed high-rigidity large-torque extension milling head for right-angled machining |
| CN203778781U (en) * | 2014-01-23 | 2014-08-20 | 滕州市大地机床股份有限公司 | Dual-purpose gearbox for milling machine |
| CN206898466U (en) * | 2017-07-12 | 2018-01-19 | 深圳市钛吉多轴数控机床有限公司 | Vertical horizontal-milling head at a high speed |
| CN108213530A (en) * | 2018-01-15 | 2018-06-29 | 重庆科技学院 | Numerical control is adjustable universal side milling device |
| CN109202510A (en) * | 2018-11-14 | 2019-01-15 | 霍山嘉远智能制造有限公司 | CNC milling machine bidirectional output angular milling head |
| CN209439504U (en) * | 2018-11-21 | 2019-09-27 | 泉州市日旭精密机械有限公司 | Horizontal-vertical double-purpose milling head |
| CN210413680U (en) * | 2019-08-03 | 2020-04-28 | 苏州安驭邦机械有限公司 | Main shaft speed changing device of accessory milling head |
| CN211249266U (en) * | 2019-08-07 | 2020-08-14 | 苏州安驭邦机械有限公司 | Cutter head device for bidirectionally mounting cutter |
| CN112222503A (en) * | 2020-10-23 | 2021-01-15 | 重庆科技学院 | 180 two-way differential cutter head |
Non-Patent Citations (1)
| Title |
|---|
| 雷祥元;: "一种新型双面铣头", 现代制造技术与装备 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114433922A (en) * | 2022-03-07 | 2022-05-06 | 中国北方车辆研究所 | Low-cost simple universal milling head device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107914173B (en) | Steerable micro-drilling and milling device for machining inner and outer cavities of workpiece | |
| CN104162785A (en) | Double-shaft turning and milling combined machine | |
| KR100655923B1 (en) | The turret with gear box | |
| CN201132234Y (en) | Auto rotary cutter head with main-shaft axis having spatial multi-quadrature positions | |
| CN202462076U (en) | Double-sided right-angle milling head | |
| CN216758216U (en) | Adjustable multi-shaft combined drill and double-sided boring machine formed by same | |
| CN112974947A (en) | Bidirectional milling head capable of independently outputting 90 degrees | |
| CN112222503A (en) | 180 two-way differential cutter head | |
| CN201324848Y (en) | Processing device for large work piece irregular cavity | |
| CN202291516U (en) | Feed gear of boring cutter | |
| CN110315113A (en) | A kind of design and assembly method of the compound milling tool of the planet of uniaxial drive | |
| CN113145882A (en) | Radial and axial cutter bar composite power cutter rest with adjustable installation angle | |
| CN204135675U (en) | Twin shaft complex milling machine | |
| CN102528470A (en) | Double-sided right-angled milling head | |
| CN112974946A (en) | Horizontal bidirectional differential milling head capable of independently outputting | |
| CN102218556A (en) | Boring machine | |
| CN101804468A (en) | Direct-connection type speeding-up dynamic tool apron for turning center | |
| CN212705645U (en) | Drilling and milling machining center | |
| CN212371189U (en) | Gear transmission type main shaft speed change gear shifting mechanism of planer type milling machine | |
| CN114535678B (en) | Coaxial double-division universal milling head device with high integration degree | |
| CN201316807Y (en) | Accessory combination lathe head for plain lathe | |
| CN206343689U (en) | A kind of numerical control machining center ball bolt counterbore adapter | |
| CN2806008Y (en) | Angular milling head | |
| CN202185771U (en) | Transmission device of workpiece box of numerical control spiral bevel gear milling machine | |
| CN212071099U (en) | Cam roller embedded rotary table |
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 |