CN206484242U - Servo brush carrier stator pressing machine - Google Patents

Servo brush carrier stator pressing machine Download PDF

Info

Publication number
CN206484242U
CN206484242U CN201720180495.XU CN201720180495U CN206484242U CN 206484242 U CN206484242 U CN 206484242U CN 201720180495 U CN201720180495 U CN 201720180495U CN 206484242 U CN206484242 U CN 206484242U
Authority
CN
China
Prior art keywords
brush carrier
stator
spring
seat
fixed seat
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.)
Withdrawn - After Issue
Application number
CN201720180495.XU
Other languages
Chinese (zh)
Inventor
谢良华
许金亭
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fuzhou Hongji Automation Equipment Co Ltd
Original Assignee
Fuzhou Hongji Automation Equipment Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Fuzhou Hongji Automation Equipment Co Ltd filed Critical Fuzhou Hongji Automation Equipment Co Ltd
Priority to CN201720180495.XU priority Critical patent/CN206484242U/en
Application granted granted Critical
Publication of CN206484242U publication Critical patent/CN206484242U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Manufacture Of Motors, Generators (AREA)
  • Motor Or Generator Current Collectors (AREA)

Abstract

The utility model is related to a kind of servo brush carrier stator pressing machine, and it is divided into the brush carrier pressing mechanism of detent mechanism left and right sides including frame, detent mechanism and two;The detent mechanism includes the stator driving component for being installed in the casing fixed seat in frame, the stator holder in the middle part of casing fixed seat and driving stator holder to lift displacement;The stator holder includes central shaft, and central shaft top left and right sides, which is correspondingly arranged two and is used to hang, to be held ring and hold ring fixed seat to what is stretched inside central shaft.The purpose of this utility model is to provide the servo brush carrier stator pressing machine that a kind of automaticity is high, packaging efficiency is fast.The utility model has the advantage of:The utility model automaticity is high, and the assembling procedure of brush carrier can be completed fast accurate, production efficiency is not only increased, also reduces cost of labor.

Description

Servo brush carrier stator pressing machine
Technical field
The utility model is related to field of machinery automation, particularly a kind of servo brush carrier stator pressing machine.
Background technology
With the development of science and technology, gradually adopt automatically processing device to substitute artificial operation on traditional mode of production streamline, from And improve the efficiency of enterprise's production.But existing equipment can not also all realize the automatic assembling of complicated procedures of forming, such as motor housing In, it is necessary to crimp one hold ring just it is very difficult.Because holding ring will install inside motor casing, and traditional crimping work Skill can not realize the so accurate operation of internal clamping, and the automation for causing motor to assemble is difficult to.
The content of the invention
The purpose of this utility model is to provide the servo brush carrier stator press-in that a kind of automaticity is high, packaging efficiency is fast Machine.
The purpose of this utility model is achieved through the following technical solutions:A kind of servo brush carrier stator pressing machine, it includes machine Frame, detent mechanism and two are divided into the brush carrier pressing mechanism of detent mechanism left and right sides;The detent mechanism includes being installed in machine Casing fixed seat on frame, the stator holder in the middle part of casing fixed seat and drive stator holder lift determining for displacement Sub- drive component;The stator holder include central shaft, central shaft top left and right sides be correspondingly arranged two be used for hang hold ring and That is stretched inside to central shaft holds ring fixed seat;The brush carrier pressing mechanism includes top pressure in the briquetting of casing upper end, for solid Determine brush carrier and the brush carrier held in ring fixed seat press-in central shaft is pressed into seat and drives briquetting and brush carrier to be pressed into seat left and right displacement Press-in drive component.
For prior art, the utility model has the advantage of:
1. the utility model automaticity is high, the assembling procedure of brush carrier can be completed fast accurate, life is not only increased Efficiency is produced, cost of labor is also reduced.
2. detent mechanism sets and two is used to hang and holds ring and hold ring fixed seat to what is stretched inside central shaft, coordinate brush carrier pressure Enter the brush carrier press-in seat in mechanism, the assembling positioning for holding ring can be realized automatically, assembling is quick accurate.
3. brush carrier pressing mechanism sets linkage unit, briquetting is pressed into seat synchronization telescope with brush carrier, pass through a press-in Drive component is the motion that above-mentioned two part can be achieved, and not only simplify complete machine structure, and reduce manufacturing cost;This extrapolation Enter the elasticity delay part set between bar and pushing plate, when efficiently solving briquetting and brush carrier press-in seat to the effect of detent mechanism Between it is poor.
Brief description of the drawings
Fig. 1 is a kind of dimensional structure diagram of servo brush carrier stator pressing machine embodiment of the utility model.
Fig. 2 is Fig. 1 side view.
Fig. 3 is the dimensional structure diagram of detent mechanism.
Fig. 4 is Fig. 3 longitudinal sectional view.
Fig. 5 is the longitudinal sectional view of another angles of Fig. 3.
Fig. 6 is the dimensional structure diagram of brush carrier pressing mechanism.
Fig. 7 is Fig. 6 top view.
Fig. 8 is Fig. 6 longitudinal sectional view.
Fig. 9 is A-A sectional views in Fig. 8.
Figure 10 is servo brush carrier stator pressing machine assembling process schematic diagram (installing stator and brush carrier).
Figure 11 is zoomed-in view at A in Figure 10.
Figure 12 is servo brush carrier stator pressing machine assembling process schematic diagram (installation casing).
Figure 13 is servo brush carrier stator pressing machine assembling process schematic diagram (briquetting top pressure positions casing).
Figure 14 is servo brush carrier stator pressing machine assembling process schematic diagram (stator rises positioning).
Figure 15 is servo brush carrier stator pressing machine assembling process schematic diagram (brush carrier press-in).
Figure 16 is servo brush carrier stator pressing machine assembling process schematic diagram (screw locking brush carrier).
Figure 17 is zoomed-in view at B in Figure 16.
Label declaration:1 frame, 2 detent mechanisms, 21 casing fixed seats, 211 alignment pins, 22 stator holders, 221 centers Ring fixed seat, 223 passages, 224 dynamic clamping head and quiet clamping heads, 225 annular grooves, 23 stator driving components, 231 top pressure cylinders, 232 are held in axle, 222 Installing plate, 233 guide pillars, 234 linear bearings, 235 spring top plates, 236 spring bottom plates, 237 buffer springs, 3 brush carrier pressing mechanisms, 31 briquettings, 311 screw pilot holes, 32 brush carriers press-in seat, 33 press-in drive components, 331 servomotors, 332 screw mandrels, 333 are slided Bar, 34 linkage units, 341 vertical shift forks, 342 pushing rams, 343 pushing plates, 344 spring fixed seats, 345 spring guides, 346 are prolonged When spring, 35 assistant supports, 351 top plates, 352 guide rail A, 353 sliding block A, 354 guide rail B, 355 slide block Bs, 356 grooves, 4 screws locking Ring, 7 brush carriers are held in mechanism, 41 screw lock out motor, 411 screws, 42 lift cylinders, 5 casings, 6 stators, 61.
Embodiment
The utility model content is described in detail with reference to Figure of description and embodiment:
As Fig. 1 to 17 show a kind of embodiment schematic diagram of servo brush carrier stator pressing machine of the utility model offer.
A kind of servo brush carrier stator pressing machine, it includes frame 1, detent mechanism 2 and two and is divided into detent mechanism 2 or so The brush carrier pressing mechanism 3 of side.
Casing fixed seat 21 that the detent mechanism 2 includes being installed in frame 1, determining located at the middle part of casing fixed seat 21 Sub- fixed seat 22 and the stator driving component 23 for driving the lifting displacement of stator holder 22;During the stator holder 22 includes Heart axle 221, the top left and right sides of central shaft 221, which is correspondingly arranged two and is used to hang, to be held ring and holds ring to what is stretched inside central shaft 221 Fixed seat 222.
Casing fixed seat 21, which is provided with the alignment pin for being used for fixing casing, stator holder 22, to be again provided with being used to fix The alignment pin of stator.
The brush carrier pressing mechanism 3 is fixed including top pressure in the briquetting 31 of casing upper end, for fixing brush carrier and will hold ring Brush carrier press-in seat 32 and drive briquetting 31 and brush carrier to be pressed into the press-in of the left and right displacement of seat 32 that seat 222 is pressed into central shaft 221 Drive component 33.
Passage 223 of the top of central shaft 221 provided with left and right extension, respectively holds ring fixed seat 222 and is slidably arranged in passage In 223;Two hold dynamic clamping head and quiet clamping head 224 are provided between the medial end of ring fixed seat 222, and respectively hold the outside circumference of ring fixed seat 222 Offer the annular groove 225 that ring is held for hanging.
The outline for holding ring fixed seat 222 is cylinder, and cylinder rearward end is provided with convex shoulder, and the both sides of passage 223 are opened Mouthful place with convex shoulder cooperation provided with to prevent holding the limiting section that ring fixed seat 222 is outwards deviate from.
Annular groove 225 is arranged on cylinder front end the week side of boss, and it is used for preliminary fixation and holds ring.
Dynamic clamping head and quiet clamping head 224 is spring, and the rearward end for holding ring fixed seat 222 offers groove for putting spring.
When holding ring fixed seat 222 and being pressed into 221 inside of central shaft by brush carrier pressing mechanism 3, because the external diameter for holding ring is more than The inlet diameter of passage 223, the lateral wall of central shaft 221 can be blocked in by holding ring, as brush carrier press-in seat 32 is passed through with brush carrier When holding ring, the ring of holding just is transferred on brush carrier by holding ring fixed seat 222.
The stator driving component 23 include top pressure cylinder 231 located at the downside of stator holder 22, air cylinder supporting structure with And it is connected to the spring buffer part between stator holder 22 and the expansion link of top pressure cylinder 231.
Stator driving component 23 is used to the stator being located in casing rising to top by bottom so that hold ring fixed seat The 222 brush carrier mounting hole just to casing top.
The spring buffer part includes being located at the spring top plate 235 of the downside of stator holder 22, is connected to top pressure cylinder 231 Spring bottom plate 236 on expansion link and the buffer spring between spring top plate 235 and spring bottom plate 236 237.Spring bottom Spring guide is additionally provided with plate 236.
The air cylinder supporting structure includes the installing plate 232 and four connection plates 232 and frame of fixed top pressure cylinder 231 The linear bearing with the corresponding matching of guide pillar 233 is arranged with 1 guide pillar 233, the spring top plate 235 and spring bottom plate 236 234。
Spring top plate 235 and spring bottom plate 236 are stripe board, and it is set in cross, and linear bearing 234 sets up separately in spring Two linear bearings in the both sides of top plate 235 and spring bottom plate 236, the rectangular distribution of four guide pillars 233, same stripe board 234 cooperate with the guide pillar 233 that diagonally sets respectively.
The brush carrier press-in seat 32 is located at press-in drive component 33 front end, and briquetting 31 is on the front side of brush carrier press-in seat 32 Linkage unit 34 is provided between side, and briquetting 31 and press-in drive component 33, briquetting 31 passes through linkage unit 34 and brush carrier pressure Take a seat 32 synchronization telescopes.
The linkage unit 34 is including being installed in the vertical shift fork 341 being pressed on drive component 33, located at vertical shift fork 341 The pushing ram 342 of upper end, the pushing plate 343 for being connected to the rear side of briquetting 31 and it is arranged between pushing ram 342 and pushing plate 343 Elasticity delay part.
Brush carrier pressing mechanism 3 sets linkage unit 34, briquetting 31 is pressed into the synchronization telescope of seat 32 with brush carrier, passes through one It is the motion that above-mentioned two part can be achieved to be pressed into drive component 33, not only simplify complete machine structure, and reduce manufacturing cost;
In addition, in order to which the action time for solving briquetting 31 and brush carrier press-in 32 pairs of detent mechanisms 2 of seat is poor, the He of pushing ram 342 Elasticity delay part is set between pushing plate 343.
When being pressed into the control briquetting 31 of drive component 33 and brush carrier press-in seat 32 is moved to detent mechanism simultaneously, the meeting of briquetting 31 First act on detent mechanism 2, casing upper end is pushed down, it is necessary to first complete before brush carrier is pressed into casing by brush carrier press-in seat 32 Into the up step of stator.
The utility model is by being pressed into the front and rear setting of seat 32 by briquetting 31 and brush carrier and coordinating the time-lag action of spring fine The action time overcome between above-mentioned steps it is poor.Meanwhile, coordinate compacter between the utility model number of assembling steps, can have Effect improves production efficiency.
The elasticity delay part includes being installed in the spring fixed seat 344 of the front side of pushing ram 342, is installed in pushing plate 343 The spring guide 345 of rear side and the delay spring 346 between spring fixed seat 344 and spring guide 345.
The press-in drive component 33 include servomotor 331, the screw mandrel 332 for driving by servomotor 331 rotation and It is sheathed on the internal thread sliding bar 333 on screw mandrel 332;The brush carrier press-in seat 32 is installed in the front end of internal thread sliding bar 333.It is perpendicular It is installed in shift fork 341 on internal thread sliding bar 333.
Servomotor 331 drives screw mandrel 332 to rotate located at the downside of screw mandrel 332 by synchronizing wheel.
The brush carrier pressing mechanism 3 also includes assistant support 35, and the upper side of top plate 351 of assistant support 35 is provided with left and right extension Guide rail A352, the downside of pushing plate 343 is provided with the sliding block A353 coordinated with guide rail A352;The upside of top plate 351 of assistant support 35 Face is additionally provided with the guide rail B354 of left and right extension, and the vertical shift fork 341 is provided with the slide block B 355 coordinated with guide rail B354;It is described Press-in drive component 33 is installed in the downside of top plate 351 of assistant support 35, and the vertical shift fork 341 of appearance is offered on top plate 351 The groove 356 of shifting.
Guide rail A352 is oriented to pushing plate 343, and guide rail B354 is oriented to pushing ram 342, above-mentioned guide frame, The Stability and veracity of the motion of briquetting 31 has been effectively ensured.
In the present embodiment, pushing ram 342 is slidably arranged in pushing plate 343, same to pushing ram 342 in pushing plate 343 Guide effect is played, the stability of linkage unit 34 is further enhanced.
It also includes the screw locking mechanism 4 located at the upside of detent mechanism 2, and the screw locking mechanism 4 is locked including screw Determine motor 41 and drive the lift cylinder 42 of the upper and lower displacement of screw lock out motor 41.
The top pressure of briquetting 31 is on the screw lock hole of casing upper end, and briquetting 31 is provided with appearance screw lock out motor 41 Screw 411 is passed through and to the screw pilot hole 311 of the guide-localization of screw 411.
Servo brush carrier stator pressing machine job step is as follows:
1. stator is fixed on stator holder 22, and ring will be held and hung it will be in one's hands in ring fixed seat 222;
2. brush carrier is fixed on brush carrier press-in seat 32;
3. casing is fixed in casing fixed seat 21;
4. screw 411 is put into the bottle opener of screw lock out motor 41;
5. the first top pressure of the driving of drive component 33 briquetting 31 is pressed into the upper end of casing;
6. the stator that the driving of stator driving component 23 is located in casing rises to top by bottom so that hold ring fixed seat 222 Just to the brush carrier mounting hole on casing top, the installation that briquetting 31 is positioned with the mutual cooperation of stator driving component 23 is positioned;
7. briquetting 31 is suppressed after casing, press-in drive component 33 is continued to run with, and now briquetting 31 is motionless, and be delayed spring 346 compressions, brush carrier press-in seat 32 continues to move to casing, after stator completes to rise positioning, and brush carrier press-in seat 32 is inserted immediately The brush carrier mounting hole on casing top, and ring fixed seat 222 will be held be pressed into central shaft 221, hold ring and be transferred to by holding ring fixed seat 222 On brush carrier;
8. the control screw of lift cylinder 42 lock out motor 41 declines, the screwing 411 of screw lock out motor 41 passes through briquetting 31 On screw pilot hole 311 brush carrier is locked.

Claims (10)

1. a kind of servo brush carrier stator pressing machine, it is characterised in that:It is divided into including frame (1), detent mechanism (2) and two The brush carrier pressing mechanism (3) of detent mechanism (2) left and right sides;
The detent mechanism (2) includes being installed in casing fixed seat (21) in frame (1), in the middle part of casing fixed seat (21) Stator holder (22) and drive stator holder (22) lift displacement stator driving component (23);The stator is fixed Seat (22) includes central shaft (221), and central shaft (221) top left and right sides, which is correspondingly arranged two and is used to hang, holds ring and to central shaft (221) what inside was flexible holds ring fixed seat (222);
The brush carrier pressing mechanism (3) is fixed including top pressure in the briquetting (31) of casing upper end, for fixing brush carrier and will hold ring Brush carrier press-in seat (32) and drive briquetting (31) and brush carrier press-in seat (32) left and right in seat (222) press-in central shaft (221) The press-in drive component (33) of displacement.
2. servo brush carrier stator pressing machine according to claim 1, it is characterised in that:Central shaft (221) top is set The passage (223) for having left and right to extend, respectively holds ring fixed seat (222) and is slidably arranged in passage (223);Two hold ring fixed seat (222) dynamic clamping head and quiet clamping head (224) is provided between medial end, and respectively holds ring fixed seat (222) outside circumference and is offered for hanging If holding the annular groove (225) of ring.
3. servo brush carrier stator pressing machine according to claim 1, it is characterised in that:Stator driving component (23) bag Include the top pressure cylinder (231) on the downside of the stator holder (22), air cylinder supporting structure and be connected to stator holder (22) and Spring buffer part between top pressure cylinder (231) expansion link;
The spring buffer part includes spring top plate (235) on the downside of the stator holder (22), is connected to top pressure cylinder (231) spring bottom plate (236) on expansion link and the buffering elastic between spring top plate (235) and spring bottom plate (236) Spring (237);
The air cylinder supporting structure includes the installing plate (232) and four connection plates (232) and machine of fixed top pressure cylinder (231) It is arranged with the guide pillar (233) of frame (1), the spring top plate (235) and spring bottom plate (236) and guide pillar (233) corresponding matching Linear bearing (234).
4. servo brush carrier stator pressing machine according to claim 2, it is characterised in that:The brush carrier press-in seat (32) is located at Drive component (33) front end is pressed into, briquetting (31) is pressed into seat (32) front side top located at brush carrier, and briquetting (31) drives with press-in Be provided with linkage unit (34) between dynamic component (33), briquetting (31) by linkage unit (34) and brush carrier press-in seat (32) synchronously stretch Contracting.
5. servo brush carrier stator pressing machine according to claim 4, it is characterised in that:The linkage unit (34) includes solid It is located at the vertical shift fork (341) on press-in drive component (33), the pushing ram (342) located at vertical shift fork (341) upper end, connection Pushing plate (343) on rear side of briquetting (31) and the elasticity delay being arranged between pushing ram (342) and pushing plate (343) Part.
6. servo brush carrier stator pressing machine according to claim 5, it is characterised in that:The elasticity delay part includes fixed Spring fixed seat (344) on front side of pushing ram (342), the spring guide (345) being installed on rear side of pushing plate (343) and set Delay spring (346) between spring fixed seat (344) and spring guide (345).
7. servo brush carrier stator pressing machine according to claim 4, it is characterised in that:Press-in drive component (33) bag Include servomotor (331), the screw mandrel (332) rotated and the interior spiral shell being sheathed on screw mandrel (332) are driven by servomotor (331) Line sliding bar (333);The brush carrier press-in seat (32) is installed in internal thread sliding bar (333) front end.
8. servo brush carrier stator pressing machine according to claim 5, it is characterised in that:The brush carrier pressing mechanism (3) is also Including assistant support (35), guide rail A (352) of top plate (351) upper side provided with left and right extension of assistant support (35), the pushing plate (343) downside is provided with the sliding block A (353) coordinated with guide rail A (352);Top plate (351) upper side of assistant support (35) is additionally provided with a left side The guide rail B (354) of right extension, the vertical shift fork (341) is provided with the slide block B (355) coordinated with guide rail B (354);The pressure Enter drive component (33) and be installed in top plate (351) downside of assistant support (35), and the vertical shift fork of appearance is offered on top plate (351) (341) groove (356) of displacement.
9. the servo brush carrier stator pressing machine according to claim 1-8 any one, it is characterised in that:It also includes being located at Screw locking mechanism (4) on the upside of detent mechanism (2), the screw locking mechanism (4) include screw lock out motor (41) and Drive the lift cylinder (42) of screw lock out motor (41) upper and lower displacement.
10. servo brush carrier stator pressing machine according to claim 9, it is characterised in that:Briquetting (31) top pressure is in machine On the screw lock hole of shell upper end, briquetting (31) is passed through and fixed to screw guiding provided with screw lock out motor (41) screwing is held The screw pilot hole (311) of position.
CN201720180495.XU 2017-02-27 2017-02-27 Servo brush carrier stator pressing machine Withdrawn - After Issue CN206484242U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720180495.XU CN206484242U (en) 2017-02-27 2017-02-27 Servo brush carrier stator pressing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720180495.XU CN206484242U (en) 2017-02-27 2017-02-27 Servo brush carrier stator pressing machine

Publications (1)

Publication Number Publication Date
CN206484242U true CN206484242U (en) 2017-09-12

Family

ID=59762550

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720180495.XU Withdrawn - After Issue CN206484242U (en) 2017-02-27 2017-02-27 Servo brush carrier stator pressing machine

Country Status (1)

Country Link
CN (1) CN206484242U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106670779A (en) * 2017-02-27 2017-05-17 福州鸿基自动化设备有限公司 Servo brush holder stator press-in machine
CN114850813A (en) * 2022-05-09 2022-08-05 浙江格力威机械股份有限公司 Machining method of wheel nut assembly

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106670779A (en) * 2017-02-27 2017-05-17 福州鸿基自动化设备有限公司 Servo brush holder stator press-in machine
CN114850813A (en) * 2022-05-09 2022-08-05 浙江格力威机械股份有限公司 Machining method of wheel nut assembly

Similar Documents

Publication Publication Date Title
CN104973401B (en) Capacitor cover plate feeding device
CN206484242U (en) Servo brush carrier stator pressing machine
CN103963304B (en) Three-dimensional printer
CN204568769U (en) A kind of blood taking needle auto-steering moves materials device
CN104803185B (en) A kind of mechanical transmission arm manufactured for automobile lampshade
CN204770365U (en) Traditional thread binding putting is turned round in rotation
CN106670779B (en) Servo brush carrier stator pressing machine
CN206484241U (en) Electrical machinery brush holder press-in device
CN110756636A (en) Tool for multi-angle and multi-azimuth part capable of being synchronously bent
CN104985023A (en) Shaping device for guide foil strips of capacitor
CN202271329U (en) Manual assembly device for hot air heat radiator core body
CN108655711B (en) Gear centering assembly device
CN206906039U (en) A kind of feed device of sample skewering machine
CN105881018A (en) Closed piston assembly mechanism for water heater water valve part assembly machine
CN218642428U (en) Automatic in-line type cap screwing machine
CN208962007U (en) A kind of multi-shaft interlocked manipulator
CN212887151U (en) Clamp for machining mechanical parts
CN211218199U (en) Tool for multi-angle and multi-azimuth part capable of being synchronously bent
CN204639714U (en) Crankshaft milling key groove clamp
CN208437710U (en) A kind of installation hole processing device of deceleration mechanism ring gear and upper cover
CN209691273U (en) A kind of lamp plate detaching structure and LED display
CN209716935U (en) Armature spindle and bearing pressure move back all-in-one machine
CN209395326U (en) A kind of light-duty 300T hydraulic die structure
CN207710174U (en) A kind of welding fixture for processing car U-shaped thin-wall product
CN205630547U (en) Large pipe seal ring mold strorage device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20170912

Effective date of abandoning: 20180529