CN205973408U - Prevent permanent -magnetic chuck that work piece dropped - Google Patents
Prevent permanent -magnetic chuck that work piece dropped Download PDFInfo
- Publication number
- CN205973408U CN205973408U CN201620975718.7U CN201620975718U CN205973408U CN 205973408 U CN205973408 U CN 205973408U CN 201620975718 U CN201620975718 U CN 201620975718U CN 205973408 U CN205973408 U CN 205973408U
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- China
- Prior art keywords
- cylinder
- magnetic chuck
- slideway
- pedestal
- movable plate
- Prior art date
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Abstract
The application discloses prevent permanent -magnetic chuck that work piece dropped, including the pedestal, the both sides that the pedestal is relative are equipped with fender portion respectively, and fender portion is including setting up in the movable plate of pedestal and the first motor of drive movable plate removal, and the movable plate tip is provided with baffle and the 2nd driving motor of drive baffle pivoted. From this, through the movable plate of liftable and rotatable baffle, when holding work piece a large amount of, that the volume is less, only need fall lower movable plate, rotate the working face below of permanent -magnetic chuck with the baffle, when the work piece because of rocking when falling down, also can fall the baffle on, can not fall ground, and cause danger to the staff.
Description
Technical field
This utility model is related to permanent magnetic chuck, the permanent magnetic chuck that more particularly, to a kind of anti-workpiece drops.
Background technology
Traditional permanent magnetic chuck is more in sticking quantity, during the workpiece of small volume, usually due to the piece count of sticking
Reach maximum number, in moving process, workpiece out of the ordinary can drop because rocking, thus can cause danger.
In addition traditional permanent magnetic chuck is required to manually to control rotary moveable permanent magnet, to reach sticking or unloading
Purpose, result in complex operation, automaticity is low, ineffective problem.
Utility model content
The purpose of this utility model is the permanent magnetic chuck being to provide a kind of anti-workpiece to drop, and solves above-mentioned prior art and asks
Topic one of or multiple.
According to one side of the present utility model, provide the permanent magnetic chuck that a kind of anti-workpiece drops, including pedestal, pedestal phase
To be respectively provided on two sides with stopper, stopper includes being arranged at the movable plate of pedestal and the first motor driving movable plate movement, shifting
The second motor that dynamic plate end is provided with baffle plate and drives flapper.
This utility model passes through liftable movable plate and rotatable baffle plate, sticking is substantial amounts of, small volume work
It is only necessary to fall movable plate during part, below flapper to the work surface of permanent magnetic chuck, when workpiece falls because rocking,
Also only can fall on baffle plate, will not fall earthward, and danger is caused to staff.
In some embodiments：The drive being provided with the first permanent magnet, rotation magnetic support in pedestal and driving rotation magnetic support rotation
Dynamic structure, is provided with the second permanent magnet in rotation magnetic support；Driving structure includes the slideway being arranged in pedestal and reciprocal in slideway
The moving body of movement, is provided with limiting section in slideway, moving body moves back and forth between slide bottom to limiting section；Moving body passes through
Flexible-belt connects rotation magnetic support, and flexible-belt one end is wound in rotation magnetic support, and the other end passes through slide bottom and is connected to moving body,
When moving body moves to slide bottom, rotation magnetic support is in original state, and now the second permanent magnet is attracting with the first permanent magnet；
When moving body moves at limiting section, rotation magnetic support rotates 180 °, and now the second permanent magnet and the first permanent magnet repel each other；Rotation
Magnetic support is provided with rotation magnetic support returns to the back-moving spring of original state.
To drive rotation magnetic support rotation from there through setting moving body, in operation, crane hooks moving body pull-up
During, moving body rotates rotation magnetic support by flexible-belt, by the second rotary type permanent-magnet to repelling each other with the first permanent magnet, makes permanent magnetism
Sucker reaches sticking state；After putting down absorbate body, moving body drops down onto slide bottom, and back-moving spring will rotate magnetic support and recover
To original state, permanent magnetic chuck becomes unloaded state, need not adjust rotation magnetic support manually, improve automaticity, simplify
Operating procedure, improves work efficiency.
In some embodiments：Moving body includes cylinder and cam lever, and cylinder can move back and forth in slideway, cylinder
It is provided with opening towards one end of slide bottom, cam lever one end is inserted inside it at cartridge openings, cam lever lateral wall ring
Be provided with cam path, cylinder inboard wall be fixed with can in cam path movement protuberance, cam path is to be surrounded on cam lever one and enclose and have
There is the curved groove in a plurality of cycles, the curved groove in each cycle all includes a high point and an extremely low point, and protuberance is along cam
During the mobile a cycle of groove, cam lever moves back and forth in cylinder and once and simultaneously rotates predetermined angle；Cam lever is not inserted into cylinder
Internal one end is provided with fixture block, and slideway is provided with bottom and is coordinated the baffle plate limiting cylinder towards limiting section movement, gear with fixture block
Plate is provided with the space for making fixture block pass through；When protuberance moves at extremely low of the curved groove in even number cycle, space position
In fixture block at the inverted image of baffle plate.Thus, when unloading workpiece, cylinder moves towards slide bottom, and rotation magnetic support returns to initially
State, permanent magnetic chuck is in unloaded state, and cam boom end is pressed on slide bottom, so that protuberance is existed using the gravity of cylinder itself
Move on cam path, cam lever rotates, fixture block rotates to baffle plate, and when permanent magnetic chuck is raised again, fixture block is by baffle wedge
Main, cylinder cannot move up, and rotation magnetic support is constantly in unloaded state, prevents the workpiece that sticking is placed；When inhaling again
When holding, cylinder pushes again, and cam lever rotates, and fixture block rotates to space, and when permanent magnetic chuck lifts, fixture block is logical from space
Cross, cylinder moves up, and draw and rotate magnetic support, so that permanent magnetic chuck is under sticking state, with sticking workpiece.
In some embodiments：Cam path has the curved groove in four cycles, and protuberance moves a cycle along cam path
When, cam lever moves back and forth in cylinder and once and simultaneously rotates 90 °.Thus, the sticking operation of permanent magnetic chuck and unloading is made to make
Industry is carried out continuously, and improves work efficiency.
In some embodiments：Moving body end is connected with suspension ring.Thus, for being connected with the hook of crane, real
The now pulling to moving body.
In some embodiments：Limiting section include being arranged at cylinder body outer wall card division and be arranged at slideway and with card
The snap ring of portion's cooperation.Thus, it is possible to limit the distance of moving body movement.
In some embodiments：Slideway inwall is provided with the chute parallel with cylinder moving direction, and cylinder body outer wall is provided with energy
The slide bar sliding in chute.Thus, it is possible to increase the stability between moving body and pedestal, prevent moving body in operation process
Relatively rotate and pedestal between.
In some embodiments：Cylinder body outer wall is provided with locked groove, and pedestal is provided with the lock with locked groove cooperation.Thus, it is possible to
Moving body is carried out locked, prevent from moving up and down in transportation.
In some embodiments：The opposite sides of pedestal is respectively arranged with the groove for movable plate setting, movable plate
One side is provided with tooth bar, and the first motor output end is provided with and tooth bar meshed gears.
In some embodiments：Movable plate bottom side is provided with axle sleeve, baffle plate lateral edges be provided with axle sleeve cooperation turn
Axle, is provided with the second motor, the output connection rotating shaft of the second motor in axle sleeve.
Brief description
Fig. 1 is the structural representation of the permanent magnetic chuck that a kind of anti-workpiece of this utility model drops；
Fig. 2 is the sectional view of the permanent magnetic chuck that a kind of anti-workpiece of this utility model drops；
Fig. 3 is the structural representation in the space of permanent magnetic chuck that a kind of anti-workpiece of this utility model drops；
Fig. 4 is a kind of anti-workpiece of this utility model locked groove of permanent magnetic chuck dropping and structural representation latching；
Fig. 5 is the structural representation of a kind of chute of permanent magnetic chuck that drops of anti-workpiece of this utility model and slide bar；
Fig. 6 is the structural representation that the movable plate of permanent magnetic chuck that a kind of anti-workpiece of this utility model drops is connected with baffle plate
Figure.
Specific embodiment
Illustrate below in conjunction with the accompanying drawings, this utility model is described in further detail.
As shown in figures 1 to 6, the permanent magnetic chuck that a kind of anti-workpiece drops, including pedestal 1, an opposite sides of pedestal 1 is divided
It is not provided with stopper 8, specifically, the opposite sides of pedestal 1 offers the groove 14 wearing for stopper respectively, and stopper 8 includes setting
It is placed in the movable plate 81 of pedestal 1 and the first motor 82 driving movable plate 81 movement, movable plate 81 is arranged in groove 14, mobile
The second motor 84 that plate 81 end is provided with baffle plate 83 and drives baffle plate 83 to rotate, specifically, the side of movable plate 81
While being provided with tooth bar 85, the first motor 82 outfan is provided with and tooth bar 85 meshed gears 86, and the first motor 82 is embedded at pedestal 1
Interior, it is only necessary to control the first motor 82 that movable plate 81 can be driven to move up and down during use.Movable plate 81 bottom side is welded with axle
Set 87, baffle plate 83 lateral edges are welded with the rotating shaft 88 with axle sleeve 87 cooperation, and specifically rotating shaft 88 is arranged in axle sleeve 87, axle
It has been bolted the second motor 84, the outfan of the second motor 84 is bonded the end being connected to rotating shaft 88 in set 87, thus the
Two motors 84 can drive baffle plate 83 to rotate.The width of its middle groove 14 is larger than the thickness of movable plate 81 and the thickness of baffle plate 83
Degree sum, when not needing using baffle plate 83, can drive baffle plate 83 rotation to fit in movable plate 81, then by driving the first electricity
Movable plate 81 is risen to the work surface exiting permanent magnetic chuck together with baffle plate 83 by machine 82.
The driving structure being provided with the first permanent magnet 2, rotation magnetic support 3 in pedestal 1 and driving rotation magnetic support 3 rotation, wherein seat
Body 1 can make to be made up of two structure identical first pedestals and the second pedestal split, thus can facilitate the setting into pedestal 1
Other parts, can dig the first chamber and the second chamber in pedestal 1, the first permanent magnet can be fixed on the first intracavity up and down, rotation
Turn magnetic support 3 and may be mounted at the second intracavity, the two ends of rotation magnetic support 3 can be interfixed with pedestal 1 by bearing respectively.Rotation
It is provided with the second permanent magnet 5 in magnetic support 3, the groove for being embedded the second permanent magnet 5 in rotation magnetic support 3, can be dug.
Driving structure includes digging in the slideway 11 in pedestal 1 and the moving body 41 that can move back and forth in slideway 11,
Slideway 11 can vertically be arranged, and moving body 41 upper end can be threaded with suspension ring 7, and suspension ring 7 can be by crane
Hook, permanent magnetic chuck of slinging, and make moving body 41 mobile.
It is provided with limiting section in slideway 11, for limiting the displacement of moving body 41, make moving body 41 in slideway 11 bottom
Move back and forth between limiting section, wherein, limiting section can include being integrally formed be arranged at moving body 43 outer wall card division 61, with
And it is arranged at slideway 11 inwall and the snap ring 62 with card division 61 cooperation, when the card division 61 of moving body 41 moves at snap ring 62,
Cannot be able to be continued to move to by snap ring card master.
Moving body 41 passes through flexible-belt 42 and connects rotation magnetic support 3, and rotation magnetic support 3 can dig annular groove, flexible-belt with ring
42 one end are wound in the annular groove of rotation magnetic support 3, and the other end passes through slideway 11 bottom and is fixedly connected on the outer wall of moving body 41,
Thus, when moving body 41 moves up, rotation magnetic support 3 can be pulled to rotate.Wherein flexible-belt 42 can be chain, steel wire rope
Or belt.
When moving body 41 moves to slideway 11 bottom, rotation magnetic support 3 is in original state, now the second permanent magnet 5 with
First permanent magnet 2 is attracting, and the magnetic line of force of the second permanent magnet 5 is less than the work pole-face of permanent magnetic chuck, just group inside permanent magnetic chuck
Become magnetic circuit closed-loop path, almost do not have the magnetic line of force from the work pole-face of permanent magnetic chuck out, so will not produce to workpiece
Suction, just can smoothly realize unloading.When moving body 41 moves at limiting section, moving body 41 pulls rotation magnetic support 3 to rotate
180 °, now the second permanent magnet 5 and the first permanent magnet 2 repel each other, the magnetic line of force from the N pole of the second permanent magnet out, by yoke, warp
Cross ferromagnetic workpiece, return the S pole that yoke enters the second permanent magnet, so, just workpiece firmly can be inhaled in permanent magnetic chuck
Work pole-face on.In order to allow rotation magnetic support 3 return to original state, rotation magnetic support 3 is provided with returning to rotation magnetic support 3
The back-moving spring 31 of original state, back-moving spring 31 can be arranged on the end of rotation magnetic support 3, and back-moving spring 31 one end is fixed on
Pedestal 1, the other end is fixed on rotation magnetic support 3.
Wherein, moving body 41 can include cylinder 43 and cam lever 44, and cylinder 43 can move back and forth in slideway 11, soft
Property band 42 end can be fixedly connected on the outer wall of cylinder 43, and card division 61 can be shaped in the outer wall of cylinder 43.Cylinder 43
It is provided with opening towards one end of slideway 11 bottom, cam lever 44 one end is inserted inside it at cylinder 43 opening, outside cam lever 43
Side wall ring to having dug cam path 45, cylinder 43 inwall be fixed with can in cam path 45 movement protuberance 46.
Wherein, cam path 45 is the curved groove being surrounded on cam lever 44 1 circle and having a plurality of cycles, each cycle
Curved groove all includes a high point and an extremely low point, and during protuberance 46 a cycle mobile along cam path 45, cam lever 44 exists
Move back and forth in cylinder 43 and rotate predetermined angle once and simultaneously, wherein protuberance 46 along cam path 45 mobile specifically to convex
The end that wheel bar 44 is exposed applies pressure, makes cam path 45 and protuberance 46 carry out relative movement.
One end that cam lever 44 is not inserted in cylinder 43 can be welded with fixture block 47, and slideway 11 is provided with and card at bottom
Block 47 cooperation limits cylinder 43 towards the baffle plate 48 of limiting section movement, and baffle plate 48 can be plugged in the inwall of slideway 11, baffle plate 48 and
Perforation can be opened up between the inwall of slideway 11, facilitate flexible-belt to pass through and be connected with cylinder 43；It is further opened with baffle plate 48 using
In the space 49 making fixture block 47 pass through.When protuberance 46 moves at extremely low of the curved groove in even number cycle, 49, space
In fixture block 47 at the inverted image of baffle plate 48.
In the present embodiment, cam path 45 has the curved groove in four cycles, and protuberance 46 moves a week along cam path 45
During the phase, cam lever 44 moves back and forth in cylinder 43 and once and simultaneously rotates 90 °.Fixture block 47 is strip structure, and space 49 is length
Degree and width are all higher than the strip structure of fixture block 47.When unloading workpiece, cylinder moves towards slide bottom, and rotation magnetic support returns to
Original state, permanent magnetic chuck is in unloaded state, and cam boom end is pressed on slide bottom, is made convex using the gravity of cylinder itself
Portion moves on cam path, and cam lever rotates, and fixture block rotates to baffle plate, and when permanent magnetic chuck is raised again, fixture block is kept off
Board master, cylinder cannot move up, and rotation magnetic support is constantly in unloaded state, prevents the workpiece that sticking is placed；When again
During secondary sticking, cylinder pushes again, and cam lever rotates, and fixture block rotates to space, and when permanent magnetic chuck lifts, fixture block is from space
Pass through, cylinder moves up, and draw and rotate magnetic support, so that permanent magnetic chuck is under sticking state, with sticking workpiece.So heavy
Multiple, so that the sticking operation of permanent magnetic chuck and unloading operation is carried out continuously, improve work efficiency.
Additionally, slideway 11 inwall digs the chute 12 parallel with cylinder 43 moving direction, cylinder 43 outer wall can weld
There is the slide bar 431 that can slide in chute 12.Thus, it is possible to increase the stability between moving body and pedestal, prevent operation
Relatively rotate between moving body and pedestal in journey.
Additionally, cylinder 43 outer wall can also dig locked groove 432, pedestal 1 is provided with the lock 13 with locked groove 432 cooperation, tool
For body, lock 13 can be arranged in the side wall of slideway 11, when permanent magnetic chuck is in transport, lock 13 is stuck in locked groove 432,
Can prevent moving body 41 from shaking up and down in transportation, and so that permanent magnetic chuck is under sticking state.
In sum, this utility model passes through liftable movable plate and rotatable baffle plate, sticking is substantial amounts of, volume
It is only necessary to fall movable plate during less workpiece, below flapper to the work surface of permanent magnetic chuck, when workpiece because rocking and
When falling, also only can fall on baffle plate, will not fall earthward, and danger is caused to staff；Additionally can be manual
Adjust rotation magnetic support, sticking and unloaded state can be automatically adjusted, improve automaticity, simplify in the course of the work
Operating procedure, improves work efficiency.
The above is only a kind of embodiment of the present utility model it is noted that for those of ordinary skill in the art
For, on the premise of creating design without departing from this utility model, some similar deformation and improvement can also be made, these
Should be regarded as within protection domain of the present utility model.
Claims (10)
1. a kind of anti-workpiece drops permanent magnetic chuck it is characterised in that：Including pedestal (1), the relative both sides of described pedestal (1) are divided
It is not provided with stopper (8), described stopper (8) includes being arranged at the movable plate (81) of described pedestal (1) and drives described movable plate
(81) first motor (82) of movement, described movable plate (81) end is provided with baffle plate (83) and drives described baffle plate (83) to rotate
The second motor (84).
2. a kind of anti-workpiece drops as claimed in claim 1 permanent magnetic chuck it is characterised in that：It is provided with described pedestal (1)
The driving structure that first permanent magnet (2), rotation magnetic support (3) and driving described rotation magnetic support (3) rotate, described rotation magnetic support (3)
Inside it is provided with the second permanent magnet (5)；Described driving structure includes the slideway (11) being arranged in described pedestal (1) and in described slideway
(11) moving body (41) moving back and forth in, is provided with limiting section in described slideway (11), and described moving body (41) is in slideway (11)
Bottom moves back and forth between limiting section；Described moving body (41) is passed through flexible-belt (42) and is connected described rotation magnetic support (3), described
Flexible-belt (42) one end is wound in described rotation magnetic support (3), and the other end passes through described slideway (11) bottom and is connected to described shifting
Kinetoplast (41), when described moving body (41) moves to described slideway (11) bottom, rotation magnetic support (3) is in original state, this
When the second permanent magnet (5) attracting with the first permanent magnet (2)；When described moving body (41) moves at described limiting section, rotation
Magnetic support (3) rotates 180 °, and now the second permanent magnet (5) and the first permanent magnet (2) repel each other；Described rotation magnetic support (3) is provided with energy
The back-moving spring (31) that magnetic support (3) returns to original state enough will be rotated.
3. a kind of anti-workpiece drops as claimed in claim 2 permanent magnetic chuck it is characterised in that：Described moving body (41) includes
Cylinder (43) and cam lever (44), described cylinder (43) can move back and forth in described slideway (11), and cylinder (43) direction is sliding
One end of road (11) bottom is provided with opening, and described cam lever (44) one end is inserted inside it at cylinder (43) opening, described convex
Wheel bar (43) lateral wall ring is provided with cam path (45), and described cylinder (43) inwall is fixed with can movement in cam path (45)
Protuberance (46), described cam path (45) is the curved groove being surrounded on described cam lever (44) circle and having a plurality of cycles, often
The curved groove in individual cycle all includes a high point and an extremely low point, and described protuberance (46) moves a week along cam path (45)
During the phase, described cam lever (44) moves back and forth in described cylinder (43) and once and simultaneously rotates predetermined angle；Described cam lever
(44) one end being not inserted in cylinder (43) is provided with fixture block (47), and described slideway (11) is provided with and described fixture block at bottom
(47) cooperation limits described cylinder (43) towards the baffle plate (48) of described limiting section movement, and described baffle plate (48) is provided with for making fixture block
(47) space (49) passed through；As extremely low of the curved groove that described protuberance (46) moves to the even number cycle, described sky
Gap (49) is located at described fixture block (47) at the inverted image of described baffle plate (48).
4. a kind of anti-workpiece drops as claimed in claim 3 permanent magnetic chuck it is characterised in that：Described cam path (45) has
The curved groove in four cycles, during described protuberance (46) a cycle mobile along cam path (45), described cam lever (44) is described
Move back and forth in cylinder (43) and once and simultaneously rotate 90 °.
5. a kind of anti-workpiece drops as claimed in claim 2 permanent magnetic chuck it is characterised in that：Described moving body (41) end
It is connected with suspension ring (7).
6. a kind of anti-workpiece drops as claimed in claim 3 permanent magnetic chuck it is characterised in that：Described limiting section includes arranging
In the card division (61) of described cylinder (43) outer wall and be arranged at described slideway (11) and the snap ring coordinating with described card division (61)
(62).
7. a kind of anti-workpiece drops as claimed in claim 3 permanent magnetic chuck it is characterised in that：Described slideway (11) inwall sets
There is the chute (12) parallel with described cylinder (43) moving direction, cylinder (43) outer wall is provided with and can slide in described chute (12)
Slide bar (431).
8. a kind of anti-workpiece drops as claimed in claim 3 permanent magnetic chuck it is characterised in that：Described cylinder (43) outer wall sets
There is locked groove (432), described pedestal (1) is provided with the lock (13) coordinating with described locked groove (432).
9. a kind of anti-workpiece drops as claimed in claim 1 permanent magnetic chuck it is characterised in that：Described pedestal (1) relative
Both sides are respectively arranged with the groove (14) arranging for described movable plate (81), and a side of described movable plate (81) is provided with tooth bar
(85), described first motor (82) outfan is provided with and described tooth bar (85) meshed gears (86).
10. a kind of anti-workpiece drops as claimed in claim 1 permanent magnetic chuck it is characterised in that：Described movable plate (81) bottom
Side is provided with axle sleeve (87), and described baffle plate (83) lateral edges are provided with the rotating shaft (88) coordinating with described axle sleeve (87), described axle
It is provided with the second motor (84), the outfan of described second motor (84) connects described rotating shaft (88) in set (87).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620975718.7U CN205973408U (en) | 2016-08-29 | 2016-08-29 | Prevent permanent -magnetic chuck that work piece dropped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620975718.7U CN205973408U (en) | 2016-08-29 | 2016-08-29 | Prevent permanent -magnetic chuck that work piece dropped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205973408U true CN205973408U (en) | 2017-02-22 |
Family
ID=58040361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620975718.7U Expired - Fee Related CN205973408U (en) | 2016-08-29 | 2016-08-29 | Prevent permanent -magnetic chuck that work piece dropped |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205973408U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498357A (en) * | 2017-09-30 | 2017-12-22 | 无锡市稀土永磁厂 | Permanent magnetic chuck with auxiliary bracket plate |
| CN107522081A (en) * | 2017-09-30 | 2017-12-29 | 无锡市稀土永磁厂 | The permanent magnetic chuck of magnechuck auxiliary sticking irregular part is installed |
| CN108116971A (en) * | 2017-12-21 | 2018-06-05 | 河南巨人起重机集团有限公司重庆高新分公司 | Crane Special running |
| CN108238539A (en) * | 2018-03-19 | 2018-07-03 | 无锡市稀土永磁厂 | Suitable for the reinforcement type magnetic crane of column sticking |
| CN108340278A (en) * | 2018-04-12 | 2018-07-31 | 无锡市稀土永磁厂 | Has the special rectangular permanent-magnetic chuck of grinding machine for blocking function |
-
2016
- 2016-08-29 CN CN201620975718.7U patent/CN205973408U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107498357A (en) * | 2017-09-30 | 2017-12-22 | 无锡市稀土永磁厂 | Permanent magnetic chuck with auxiliary bracket plate |
| CN107522081A (en) * | 2017-09-30 | 2017-12-29 | 无锡市稀土永磁厂 | The permanent magnetic chuck of magnechuck auxiliary sticking irregular part is installed |
| CN108116971A (en) * | 2017-12-21 | 2018-06-05 | 河南巨人起重机集团有限公司重庆高新分公司 | Crane Special running |
| CN108238539A (en) * | 2018-03-19 | 2018-07-03 | 无锡市稀土永磁厂 | Suitable for the reinforcement type magnetic crane of column sticking |
| CN108340278A (en) * | 2018-04-12 | 2018-07-31 | 无锡市稀土永磁厂 | Has the special rectangular permanent-magnetic chuck of grinding machine for blocking function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170222 Termination date: 20180829 |