CN108098075B - A kind of door closer rack gear plunger mill teeth device and its working method - Google Patents
A kind of door closer rack gear plunger mill teeth device and its working method Download PDFInfo
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- CN108098075B CN108098075B CN201611050225.3A CN201611050225A CN108098075B CN 108098075 B CN108098075 B CN 108098075B CN 201611050225 A CN201611050225 A CN 201611050225A CN 108098075 B CN108098075 B CN 108098075B
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- mill teeth
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 37
- 230000005484 gravity Effects 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 claims abstract description 5
- 238000003801 milling Methods 0.000 claims abstract description 5
- 238000013519 translation Methods 0.000 claims description 11
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 3
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000005256 carbonitriding Methods 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F5/00—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made
- B23F5/20—Making straight gear teeth involving moving a tool relatively to a workpiece with a rolling-off or an enveloping motion with respect to the gear teeth to be made by milling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/02—Loading, unloading or chucking arrangements for workpieces
- B23F23/06—Chucking arrangements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention relates to a kind of door closer rack gear plunger mill teeth devices and its working method, including feeding device, clamping device and cutting apparatus, the feeding device includes rotatable inserted link, the internal diameter clearance fit of the diameter of the inserted link and the plunger to mill teeth, so that after the plunger of mill teeth is inserted in inserted link, inserted link rotation drives plunger rotation, makes the eccentric side of plunger be placed in the downside of inserted link under gravity and effect of inertia when inserted link stops rotating, thus accurately finds out the eccentric side of plunger；The clamping device includes the fixture for clamping tooth post plug to be milled, the cutting apparatus includes rotatable cutting power-driven cutter head, the plunger of eccentric side is found out by, close to the cutting power-driven cutter head, milling out rack gear on the surface of plunger eccentric side by cutting power-driven cutter head after the clamp；It crosses and drives plunger to rotate using with the inserted link of plunger inner hole clearance fit, can fast and accurately find the eccentric side of plunger, and complete to position.
Description
Technical field
The present invention relates to door closer Piston Machining equipment technical field, especially a kind of door closer is filled with rack gear plunger mill teeth
It sets and its working method.
Background technique
Door closer is the hydraulic press of a spring-like on door leaf, can be by discharging after compressing, certainly by door after door is opened
It is dynamic to shut, play the role of as single or double acting door, it is ensured that after door is turned on, accurately, timely closes and arrive initial position.
The working principle of door closer is: when opening the door, door body drives connecting rod movement, and rotates transmission gear, sliding tooth
Plunger is mobile, and spring is compressed during plunger motion.After the completion of door opening process, since spring is in opening process
In compressed, the elastic potential energy put aside is released, and by plunger toward reverse push, band nutating gear and door closer connecting rod turn
It is dynamic, make a closing.Although the door closer structure of different manufacturers production, size are variant, principle is identical.
Above-mentioned rack gear plunger is all that milling shapes on milling machine or gear hobbing shapes on gear-hobbing machine, specific processing method
Be: round steel material blanking-rough turn outer circle-inner hole-mill teeth top plane-mill teeth of brill bias or the tooth of gear hobbing rack gear, Chinese patent are awarded
Power notification number CN102303218B, disclose the processing method and its particular manufacturing craft of a kind of plunger for door closer, successively include with
Lower step: material, necking, shaping, crowded teeth, turning, carbo-nitriding heat treatment, cylindrical grinding and riveting one-way valve seat, wherein shaping are cut
Including shaping necking head and shaping tube body, the crowded teeth is to squeeze the setting position of the upper surface of plunger to constitute rack shape.
Since plunger sheet is as cylindrical body, inevitably there is certain eccentric situation in when processing, in order to extend rack gear
Rack gear is often processed the side relatively thick in plunger wall body by the service life of plunger, therefore when carrying out mill teeth to plunger
Generally require to find the highest point of plunger；Existing plunger milling equipment is mostly by installation plunger by hand, and naked eyes determine plunger
Eccentric side, often result in judgement there are deviation, and influence efficiency.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of structures, and simple, easily operated door closer is milled with rack gear plunger
Tooth device and its working method.
In order to solve the above technical problems, door closer provided by the invention rack gear plunger mill teeth device, comprising: feeding dress
It sets, clamping device and cutting apparatus, the feeding device include rotatable inserted link, the diameter of the inserted link and the plunger to mill teeth
Internal diameter clearance fit so that inserted link under rotation status is inserted into after the plunger of mill teeth, inserted link rotation drives plunger rotation, inserts
Make the eccentric side of plunger be placed in the downside of inserted link under gravity and effect of inertia when bar stops rotating, thus accurately finds out column
The eccentric side of plug；The clamping device includes the fixture for clamping tooth post plug to be milled, and the cutting apparatus includes rotatable
Cutting power-driven cutter head, find out the plunger of eccentric side by after the clamp close to the cutting power-driven cutter head, it is dynamic by cutting
Power cutter head mills out rack gear on the surface of plunger eccentric side.
Further, the clamping device further includes translational slide, lower platen, and the bottom end setting translation of the translational slide is led
It further include the hydraulic cylinder for driving the translational slide mobile to bar, so that the translational slide can be led along the translation
To bar translation；The top fixed setting lifting guide rod of the translational slide, the lower platen and the lifting guide rod
Be slidably matched, the fixture is placed in the lower end surface of the lower platen, when so that the translational slide is mobile, drive fixture close or
Far from the cutting apparatus.
Further, the cutting apparatus further includes motor and the shaft that rotation is driven by motor, the cutting power-driven cutter head
The end for being fixedly connected on the shaft is placed on the side-lower of the fixture so that the mobile rear jig of translational slide can it is close or
Far from the cutting power-driven cutter head.
Further, the feeding device further includes the sliding seat set on the translational slide side, and the sliding seat is through cunning
Cylinder of taking offence driving can be close to or far from the translational slide；Lifting cylinder is set on the sliding seat, the lifting cylinder output shaft
Rotary extension cylinder is arranged in top, which is fixedly linked with the inserted link, so that rotary extension cylinder
Output shaft rotate the inserted link driven to rotate when stretching out.
Further, door closer rack gear plunger mill teeth device further includes the feeding sliding slot being obliquely installed, the feeding sliding slot
Upper setting is suitable for the concave channel that plunger rolls, and the discharge port of the feeding sliding slot is placed in the front end of the inserted link, so that described
When rotary extension cylinder starts in the inner hole of the plunger in the rotatable insertion feeding sliding slot exit of inserted link.
Further, sliding rail is arranged in the lower end surface of the lower platen, and the fixture includes the fixation for being placed in described sliding rail one end
Baffle and the die sleeve that can be slided relative to the sliding rail, the die sleeve are connected to drive die sleeve to slide along sliding rail with oil cylinder, so that
When the plunger is delivered between fixed baffle and die sleeve by feeding device, oil cylinder drives the die sleeve to match with fixed baffle
Plunger is clamped.
The above-mentioned door closer working method of rack gear plunger mill teeth device, includes the following steps:
A, by the merging feeding sliding slot of the plunger to mill teeth and slide downward, first start rotary extension cylinder and inserted link is rotated
The inner hole of the plunger in insertion feeding sliding slot exit is forward extended out, while starting lifting cylinder and making inserted link that plunger be driven to rise,
To drive plunger to rotate, after lifting cylinder rises to predeterminated position, rotary extension cylinder stops rotating so that inserted link is static, and inserts
When the plunger of bar clearance fit stops operating under the action of gravity and inertia, heavier bias is placed on the downside of inserted link, complete
At the positioning of plunger eccentric side.
B, starting sliding cylinder pushes sliding seat whole mobile to the translational slide, so that defeated with the plunger of inserted link socket
It send to the lower section of lower platen, is placed between fixed baffle and die sleeve.
C, starting oil cylinder driving die sleeve is displaced along sliding rail to the fixed baffle, and plunger is driven to move axially along inserted link, with
It forms die sleeve and fixed baffle to plunger to clamp, locked cylinder is to lock plunger；It is again started up rotary extension cylinder,
Inserted link is driven to exit plunger inner hole so that the output shaft of rotary extension cylinder is shunk.
D, start motor, driving cutting power-driven cutter head rotation, starting hydraulic cylinder driving translational slide translation is so that plunger
Eccentric side close to cutting power-driven cutter head so that cutting power-driven cutter head in the eccentric side of plunger mills out rack gear；After the completion of mill teeth, institute
Translational slide reset is stated, oil cylinder unlocks and the end face far from plunger that drives die sleeve, so that plunger enters splicing sliding slot, under completion
Material.
Repeat the above steps A to D, and the Continuous maching of multiple plungers can be completed, and substantially increases mill teeth efficiency.
The technical effect of invention: (1) door closer of the invention rack gear plunger mill teeth device leads to compared with the existing technology
It crosses and drives plunger to rotate using with the inserted link of plunger inner hole clearance fit, can fast and accurately find the eccentric side of plunger, and
Complete positioning；Rack gear is milled out in the eccentric side of plunger using rotatable cutting power-driven cutter head, the rack gear plunger of acquisition uses the longevity
It orders longer；(2) it drives translational slide to make plunger mobile to cutting power-driven cutter head by hydraulic cylinder when mill teeth, can effectively keep away
The problem of exempting from plunger mill teeth rear surface there are burrs, the rack gear plunger of acquisition is brighter and cleaner, avoids subsequent polish；(3) originally
Device realizes the automatic continuous production of plunger positioning, clamping, mill teeth, and production efficiency improves 3 times compared to artificial clamping,
And the rack gear plunger qualification rate obtained is higher.
Detailed description of the invention
Invention is further described in detail with reference to the accompanying drawings of the specification:
Fig. 1 is the schematic perspective view of door closer of the invention with rack gear plunger mill teeth device；
Fig. 2 is the top view of door closer of the invention with rack gear plunger mill teeth device；
Fig. 3 is the front view of Fig. 2.
In figure: plunger 1, inserted link 11, rotary extension cylinder 12, lifting cylinder 13, sliding seat 14, sliding cylinder 15, top plate
21, lower platen 22 goes up and down guide rod 23, translational slide 24, guided in translation bar 25, motor 41, shaft 42, feeding sliding slot 5, splicing
Sliding slot 6, pedestal 7, blanking cylinder 8.
Specific embodiment
Embodiment 1
As shown in Figure 1 to Figure 3, the door closer of the present embodiment rack gear plunger mill teeth device, comprising: pedestal 7, the pedestal 7
Upper setting feeding device, clamping device and cutting apparatus, clamping device include translational slide 24, lower platen 22, fixture, pedestal 7
Upper to be horizontally disposed with 2 guided in translation bars 25, the bottom end two sides of translational slide 24 are slidably matched with guided in translation bar 25 respectively, through liquid
Compressing cylinder drives translational slide 24 can be relative to 7 translation gliding of pedestal；3 vertical liters are fixedly installed in the top of translational slide 24
Guide rod 23 drops, and top plate 21 is fixedly installed in the top of the lifting guide rod 23, and lower platen 22 is placed in top plate 21 and translational slide 24
Between, and be slidably matched with each lifting guide rod 23, which can go up and down guide rod 23 through cylinder drives edge and be gone up and down
It adjusts；Sliding rail is arranged in the lower end surface of lower platen 22, and fixture includes being placed in the fixed baffle of sliding rail one end and can sliding relative to sliding rail
Dynamic die sleeve, die sleeve is slided by oil cylinder drives edge sliding rail, for clamping plunger 1.
Feeding device includes the sliding seat 14 set on 24 side of translational slide, and sliding seat 14 drives reliably through sliding cylinder 15
Close or remote from translational slide 24；Lifting cylinder 13 is set on the sliding seat 14, and rotation is arranged in the top of 13 output shaft of lifting cylinder
Turn telescopic cylinder 12, which is fixedly connected with inserted link 11；The diameter of the inserted link 11 and the column to mill teeth
The internal diameter clearance fit of plug 1, so that the inserted link 11 under rotation status is inserted into after the plunger 1 of mill teeth, the rotation of inserted link 11 drives column
1 rotation of plug, inserted link 11 make the eccentric side of plunger 1 be placed in the downside of inserted link 11 under gravity and effect of inertia when stopping rotating,
Thus the eccentric side of plunger 1 is accurately found out.
Cutting apparatus includes motor 41 and the shaft 42 that rotation is driven by motor, and the end of the shaft 42 is fixedly connected with cutting
Power-driven cutter head, the cutting power-driven cutter head are placed in the side-lower of fixture, so that by the plunger 1 of clamp after translational slide 24 is mobile
Rack gear can be milled out on the surface of 1 eccentric side of plunger by cutting power-driven cutter head close to or far from cutting power-driven cutter head.
Door closer rack gear plunger mill teeth device further includes the feeding sliding slot 5 being obliquely installed, splicing sliding slot 6, feeding sliding slot
5, setting is suitable for the concave channel that plunger 1 rolls on splicing sliding slot 6, and the discharge port of feeding sliding slot 5 is placed in the front end of inserted link 11, with
In the inner hole for the plunger 1 that inserted link 11 can be inserted into 5 exit of feeding sliding slot when starting rotary extension cylinder 12；Splicing sliding slot 6 by
Blanking cylinder 8 drives, and is movable to the lower section of fixture, so that 1 mill teeth of plunger completes rear jig pine folder, plunger 1 can enter splicing
Sliding slot 6.
Embodiment 2
The working method of the door closer of the embodiment 1 rack gear plunger mill teeth device, comprising:
A, by the merging feeding sliding slot 5 of the plunger 1 to mill teeth and slide downward, first start rotary extension cylinder 12 and make inserted link
11 rotations forward extend out the inner hole of the plunger 1 in insertion 5 exit of feeding sliding slot, while starting lifting cylinder 13 and making 11 band of inserted link
Dynamic plunger 1 is lifted off feeding sliding slot 5, and plunger 1 rotates under the drive of inserted link 11；Lifting cylinder 13 rises to predeterminated position
Afterwards, rotary extension cylinder 12 stops rotating so that inserted link 11 is static, stops operating Shi Chong with the plunger 1 of 11 clearance fit of inserted link
Under the action of power and inertia, heavier bias is placed on the downside of inserted link 11, thus completes the positioning of 1 eccentric side of plunger.
B, starting sliding cylinder 15 pushes sliding seat 14 whole mobile to translational slide 24, so that the column being socketed with inserted link 11
Plug 1 is delivered to the lower section of lower platen 22, is placed between fixed baffle and die sleeve.
C, starting oil cylinder driving die sleeve is displaced along sliding rail to fixed baffle, and plunger 1 is driven to move axially along inserted link 11, so that
Die sleeve and fixed baffle, which form plunger, to be clamped, and locked cylinder；It is again started up rotary extension cylinder 12, so that rotary extension gas
The output shaft of cylinder 12, which is shunk, drives inserted link 11 to exit plunger inner hole.
D, start motor 41, driving cutting power-driven cutter head rotation, starting hydraulic cylinder driving translational slide 24 translate so that
The eccentric side of plunger 1 is close to cutting power-driven cutter head, so that cutting power-driven cutter head mills out rack gear in the eccentric side of plunger 1, obtains tooth
Plunger；After the completion of mill teeth, translational slide 24 resets, and the starting driving splicing sliding slot 6 of blanking cylinder 8 is placed in the lower section of fixture, oil
Cylinder unlocks and drives die sleeve far from the end face of rack gear plunger, so that rack gear plunger enters splicing sliding slot 6, completes blanking.
In use, mill teeth depth can be set by adjusting the position of lower platen 22.
Repeat the above steps A to D, and the Continuous maching of multiple plungers can be completed, and substantially increases mill teeth efficiency.
Obviously, the above embodiment is merely an example for clearly illustrating the present invention, and is not to of the invention
The restriction of embodiment.For those of ordinary skill in the art, it can also be made on the basis of the above description
Its various forms of variation or variation.There is no necessity and possibility to exhaust all the enbodiments.And these belong to this hair
The obvious changes or variations that bright spirit is extended out are still in the protection scope of this invention.
Claims (6)
1. a kind of door closer rack gear plunger mill teeth device characterized by comprising feeding device, clamping device and cutting dress
It sets, the feeding device includes rotatable inserted link (11), between the diameter of the inserted link (11) and internal diameter to the plunger (1) of mill teeth
Gap cooperation, so that the inserted link (11) under rotation status is inserted into after the plunger (1) of mill teeth, inserted link (11) rotation drives plunger (1)
Rotation, inserted link (11) are placed in the eccentric side of plunger (1) under gravity and effect of inertia under inserted link (11)
Side；The clamping device includes the fixture for clamping the plunger (1) to mill teeth, and the cutting apparatus includes rotatable cuts
Power-driven cutter head is cut, finds out the plunger (1) of eccentric side by the cutting power-driven cutter head close after the clamp, by cutting power
Cutter head mills out rack gear on the surface of plunger eccentric side.
2. door closer according to claim 1 rack gear plunger mill teeth device, which is characterized in that the clamping device also wraps
Translational slide (24), lower platen (22) are included, it further includes being used for that guided in translation bar (25), which are arranged, in the bottom end of the translational slide (24)
The hydraulic cylinder for driving the translational slide (24) mobile, so that the translational slide (24) can be along the guided in translation bar (25)
Translation；Top fixed setting lifting guide rod (23) of the translational slide (24), the lower platen (22) and the liter
Drop guide rod (23) is slidably matched, and the fixture is placed in the lower end surface of the lower platen (22).
3. door closer according to claim 2 rack gear plunger mill teeth device, which is characterized in that the cutting apparatus also wraps
It includes motor (41) and the shaft (42) of rotation is driven by motor, the cutting power-driven cutter head is fixedly connected on the shaft (42)
End is placed on the side-lower of the fixture；
The feeding device further includes the sliding seat (14) set on the translational slide (24) side, and the sliding seat (14) is through cunning
Taking offence cylinder (15) driving can be close to or far from the translational slide (24)；Lifting cylinder (13) are set on the sliding seat (14), it should
Rotary extension cylinder (12) are arranged in the top of lifting cylinder (13) output shaft, which inserts with described
Bar (11) is fixedly linked, and drives the inserted link (11) to rotate when stretching out so that the output shaft of rotary extension cylinder (12) rotates.
4. door closer according to claim 3 rack gear plunger mill teeth device, which is characterized in that further include being obliquely installed
Feeding sliding slot (5), setting is suitable for the concave channel that plunger (1) rolls on the feeding sliding slot (5), the feeding sliding slot (5)
Discharge port is placed in the front end of the inserted link (11), so that inserted link (11) rotatable insertion when the rotary extension cylinder (12) starts
In the inner hole of the plunger (1) in feeding sliding slot (5) exit.
5. door closer according to claim 4 rack gear plunger mill teeth device, which is characterized in that the lower platen (22)
Sliding rail is arranged in lower end surface, and the fixture includes being placed in the fixed baffle of described sliding rail one end and can sliding relative to the sliding rail
Die sleeve, the die sleeve are connected to drive die sleeve to slide along sliding rail with oil cylinder, so that the plunger (1) is delivered to admittedly by feeding device
After determining between baffle and die sleeve, oil cylinder drives the die sleeve to match with fixed baffle and clamps plunger (1).
6. the door closer according to claim 5 working method of rack gear plunger mill teeth device, which is characterized in that including such as
Lower step:
A, to the plunger of mill teeth (1) merging feeding sliding slot (5) and slide downward, will first start rotary extension cylinder (12) to insert
Bar (11) rotation forward extends out the inner hole of the plunger (1) in insertion feeding sliding slot (5) exit, while starting lifting cylinder (13) and make
Obtaining inserted link (11) drives plunger (1) to rise, to drive plunger (1) to rotate, after lifting cylinder (13) rises to predeterminated position, and rotation
Telescopic cylinder (12) stops rotating so that inserted link (11) is static, when stopping operating with the plunger (16) of inserted link (11) clearance fit
Under the action of gravity and inertia, heavier bias is placed on the downside of inserted link (11), completes the positioning of plunger (1) eccentric side；
B, starting sliding cylinder (15) pushes sliding seat (14) whole mobile to the translational slide (24), so that with inserted link (11)
The plunger (1) of socket is delivered to the lower section of lower platen (22), is placed between fixed baffle and die sleeve；
C, starting oil cylinder driving die sleeve is displaced along sliding rail to the fixed baffle, and plunger (1) is driven to move axially along inserted link (11),
So that die sleeve and fixed baffle form plunger (1) and clamp, locked cylinder is to lock plunger (1)；It is again started up rotation
Telescopic cylinder (12) drives inserted link (11) to exit plunger (1) inner hole so that the output shaft of rotary extension cylinder (12) is shunk；
D, start motor (41), driving cutting power-driven cutter head rotation, starting hydraulic cylinder driving translational slide (24) translate so that
The eccentric side of plunger (1) is close to cutting power-driven cutter head, so that cutting power-driven cutter head mills out rack gear in the eccentric side of plunger (1)；Milling
After the completion of tooth, the translational slide (24) resets, and oil cylinder unlocks and drives die sleeve far from the end face of plunger (1) so that plunger into
Enter splicing sliding slot (6), completes blanking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611050225.3A CN108098075B (en) | 2016-11-24 | 2016-11-24 | A kind of door closer rack gear plunger mill teeth device and its working method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611050225.3A CN108098075B (en) | 2016-11-24 | 2016-11-24 | A kind of door closer rack gear plunger mill teeth device and its working method |
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| Publication Number | Publication Date |
|---|---|
| CN108098075A CN108098075A (en) | 2018-06-01 |
| CN108098075B true CN108098075B (en) | 2019-07-19 |
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| CN201611050225.3A Active CN108098075B (en) | 2016-11-24 | 2016-11-24 | A kind of door closer rack gear plunger mill teeth device and its working method |
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| CN111790951B (en) * | 2020-07-10 | 2024-07-26 | 瓯宝安防科技股份有限公司 | Self-centering processing equipment and processing technology for door closer piston milling teeth |
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| CN105499711A (en) * | 2016-01-08 | 2016-04-20 | 三峡大学 | Symmetrical cylindrical rack and gear slotting machining device and method |
| CN206643457U (en) * | 2016-11-24 | 2017-11-17 | 丹阳市华清机车配件有限公司 | A kind of door closer rack plunger mill teeth device |
| CN206643456U (en) * | 2016-11-24 | 2017-11-17 | 丹阳市华清机车配件有限公司 | A kind of easily operated door closer rack plunger mill teeth device |
| CN206643455U (en) * | 2016-11-24 | 2017-11-17 | 丹阳市华清机车配件有限公司 | A kind of product qualification rate higher door closer rack plunger mill teeth device |
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| CN108098075A (en) | 2018-06-01 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A gear plunger milling device for door closers and its working method Granted publication date: 20190719 Pledgee: Jiangsu Danyang Rural Commercial Bank Co.,Ltd. Pledgor: DANYANG CITY, HUAQING MOTORCYCLE PARTS CO.,LTD. Registration number: Y2024980028264 |
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