CN110202458A - Needle magnetic grinder for long hole rim buildup - Google Patents
Needle magnetic grinder for long hole rim buildup Download PDFInfo
- Publication number
- CN110202458A CN110202458A CN201910622336.4A CN201910622336A CN110202458A CN 110202458 A CN110202458 A CN 110202458A CN 201910622336 A CN201910622336 A CN 201910622336A CN 110202458 A CN110202458 A CN 110202458A
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- pole
- buildup
- sliding
- needle
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- 238000003860 storage Methods 0.000 claims abstract description 16
- 239000000463 material Substances 0.000 claims description 11
- 239000012141 concentrate Substances 0.000 claims description 6
- 238000000034 method Methods 0.000 abstract description 12
- 238000005516 engineering process Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000011259 mixed solution Substances 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/0023—Other grinding machines or devices grinding machines with a plurality of working posts
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/003—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor whereby the workpieces are mounted on a holder and are immersed in the abrasive material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/10—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
- B24B31/14—Abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/10—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces
- B24B47/12—Drives or gearings; Equipment therefor for rotating or reciprocating working-spindles carrying grinding wheels or workpieces by mechanical gearing or electric power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention belongs to Magnetic Force Grinding Technology fields, more particularly, to a kind of needle magnetic grinder for long hole rim buildup, it is characterized by comprising cabinets, storage slot, one group of card slot, magnetic grinding mechanism, magnetic grinding mechanism includes linear reciprocating mechanism, magnetic rotary machine structure, linear reciprocating mechanism includes bracket, sliding I, sliding II, sliding I includes two sliding rails I, the slide unit I being slidably connected with two sliding rails I, sliding II includes two sliding rails II and rack gear, the slide unit II being slidably connected with two sliding rails II, gear motor, gear, gear motor is fixedly connected with slide unit I, magnetic rotary machine structure includes magnetic pole tray motor, magnetic pole pallet, several magnetic poles.The present invention processes long hole rim buildup using needle magnetic finishing, by needle magnetic grinding, improves the efficiency of long hole rim buildup removal, has saved production cost, reduced labor intensity of workers.
Description
Technical field
The invention belongs to Magnetic Force Grinding Technology fields, more particularly, to a kind of needle magnetic force for long hole rim buildup
Grinding device.
Background technique
With the rapid development of the modern industry and science and technology, material big using hardness, that fusing point is high is more and more, and passes
The method of system is no longer satisfied certain technique requirements, and in order to adapt to new development, new technology and technique are also gradually opened
It issues.Laser processing technology is exactly a kind of novel technology, and laser boring is one of laser processing technology, it is to utilize
The processed material of high power density laser beam irradiation, makes material be heated to the temperature of vaporization quickly, and evaporation forms hole.Laser
Punching have trepanning velocity it is fast, it is high-efficient, can be punched in hard, crisp, soft a variety of materials.
Using the long slab after laser boring the usability of long slab can can be seriously affected there are buildup at the edge in hole
Can, therefore the removal of long hole rim buildup is particularly important, and because the hardness and strength of long plate material are bigger, it generates
Buildup hardness and strength it is also bigger, be difficult to remove it, the method typically manually polished removes, and labour is strong
Degree is big, and low efficiency is at high cost.It is, thus, sought for a kind of processing method of automation improves processing efficiency, cost is saved.
Summary of the invention
The object of the present invention is to provide a kind of efficiency that can be improved long hole rim buildup removal, save production cost,
Reduce the needle magnetic grinder of the long hole rim buildup of labor intensity of workers.
The purpose of the present invention is what is realized by following technical proposals:
Needle magnetic grinder for long hole rim buildup of the invention, it is characterised in that including cabinet, setting is herein
The storage slot of cabinet upper surface is arranged in this storage slot and one group of card slot disposed in parallel, is arranged in the intracorporal magnetic of the case
Power grinds mechanism,
The magnetic grinding mechanism includes linear reciprocating mechanism, and the magnetic force on this linear reciprocating mechanism top is arranged in
Rotating mechanism, the linear reciprocating mechanism include bracket, are arranged in sliding I above this bracket, setting is slided herein
Sliding II of dynamic I lower section, described sliding I includes that side on the bracket is arranged and sets along the card slot longitudinal direction
Two sliding rails I set, across on this two sliding rails I and the slide unit I that is slidably connected with described two sliding rails I, the sliding
II includes the bottom plate of setting on the bracket, two sliding rails II and rack gear on this bottom plate is arranged in, with described two cunnings
The slide unit II that rail II is slidably connected is arranged in the gear motor on the slide unit II, is connected with the output end of this gear motor
Gear, this gear is meshed with the rack gear, and the gear motor is fixedly connected with the slide unit I,
The magnetic rotary machine structure includes the magnetic pole tray motor being arranged on the slide unit I, with this magnetic pole tray motor
Several magnetic poles on this magnetic pole pallet are arranged in the magnetic pole pallet that output end is connected.
Several magnetic poles include eight poles N and eight poles S, and eight poles N concentrate on side, and described eight
The pole S concentrates on the other side, and several magnetic poles are spread to the periphery with the center of circle of magnetic pole pallet and are distributed in three layers, and first layer is pressed
Counterclockwise successively from the longitudinal axis to horizontal axis on be distributed as the pole N, the pole N, the pole S and the pole S, and be located at the magnetic pole of the longitudinal axis to the center of circle away from
From be greater than positioned at horizontal axis magnetic pole to the center of circle with a distance from,
The second layer is with R1It is distributed as the pole N, the pole N, the pole S and the pole S from first quartile to fourth quadrant counterclockwise for the center of circle, and
The magnetic pole of this four quadrants is located on 45 °, 135 °, 225 ° and 315 ° directions,
Third layer is distributed with four groups of magnetic poles, and first group is located above the horizontal axis and with symmetrical two pole N of the longitudinal axis, and second
Group is located at below the horizontal axis and with symmetrical two pole S of the longitudinal axis, and third group is located on the left of the longitudinal axis and with the cross
The axisymmetric pole N and the pole S, the 4th group is located on the right side of the longitudinal axis and with the symmetrical pole N of the horizontal axis and the pole S, the third group
The top of the horizontal axis is arranged in the pole N of the 4th group of magnetic pole and the pole S is arranged in the lower section of the horizontal axis.
The two sides of each card slot of one group of card slot are equipped with detent slideway, two long sides setting of long slab this two
In a detent slideway.
The storage slot is non-magnet material.
The card slot is non-magnet material.
Advantages of the present invention:
(1) the needle magnetic grinder of long hole rim buildup of the invention, using needle magnetic finishing come to long plate hole
Edge buildup is processed, and by needle magnetic grinding, is improved the efficiency of long hole rim buildup removal, has been saved production
Cost reduces labor intensity of workers；
(2) the needle magnetic grinder of long hole rim buildup of the invention is replaced needed for the grinding of general magnetic using needle
Magnetic grain, since the collision of needle, cultivated plough scratching, rolling can make long slab bore edges buildup quickly remove, and needle
Therefore amount can't be lost；
(3) the needle magnetic grinder of long hole rim buildup of the invention, needle in process can quilts repeatedly
It uses, the consumption of needle does not have too many increase, ensure that production cost will not be on machining medium to a certain extent
Increase, improves economic benefit；
(4) the needle magnetic grinder of long hole rim buildup of the invention, processing cleaning, process will not make environment
At any pollution.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of magnetic grinding mechanism of the present invention.
Fig. 3 is the structural schematic diagram of magnetic pole of the present invention distribution.
Fig. 4 is long slab of the present invention and groove position relation schematic diagram.
Fig. 5 is the long slab that the present invention has bore edges buildup.
Specific embodiment
A specific embodiment of the invention is further illustrated with reference to the accompanying drawing.
As shown in Figs. 1-5, the needle magnetic grinder for long hole rim buildup of the invention, it is characterised in that packet
Cabinet 2 is included, the storage slot 3 of this 2 upper surface of cabinet is set, is arranged in this storage slot 3 and one group of card slot 1 disposed in parallel,
Magnetic grinding mechanism in the cabinet 2 is set,
The magnetic grinding mechanism includes linear reciprocating mechanism, and the magnetic force on this linear reciprocating mechanism top is arranged in
Rotating mechanism, the linear reciprocating mechanism include bracket 7, sliding I of this 7 top of bracket are arranged in, setting is herein
Sliding II for sliding I lower section, described sliding I includes being arranged above the bracket 7 and along the 1 longitudinal direction side of card slot
To two sliding rails I 5 of setting, across on this two sliding rails I 5 and the slide unit I 9 that is slidably connected with described two sliding rails I 5, institute
The sliding stated II includes the bottom plate 14 being arranged on the bracket 7, and two sliding rails II 12 and tooth on this bottom plate 14 is arranged in
The gear motor 10 on the slide unit II 11 is arranged in item 13, the slide unit II 11 being slidably connected with described two sliding rails II 12, with
The gear 17 that the output end of this gear motor 10 is connected, this gear 17 are meshed with the rack gear 13, the gear electricity
Machine 10 is fixedly connected with the slide unit I 9,
The magnetic rotary machine structure includes the magnetic pole tray motor 6 being arranged on the slide unit I 9, with this magnetic pole tray motor 6
The magnetic pole pallet 4 that is connected of output end, several magnetic poles 8 on this magnetic pole pallet 4 are set.
Several magnetic poles 8 include eight poles N and eight poles S, and eight poles N concentrate on side, and described eight
A pole S concentrates on the other side, and several magnetic poles 8 are spread to the periphery with the center of circle of magnetic pole pallet 4 and are distributed in three layers, and first
Layer counterclockwise successively from the longitudinal axis to horizontal axis on be distributed as the pole N, the pole N, the pole S and the pole S, and be located at the magnetic pole 8 of the longitudinal axis to circle
The distance of the heart is greater than the distance that the center of circle is arrived positioned at the magnetic pole 8 of horizontal axis,
The second layer is with R1It is distributed as the pole N, the pole N, the pole S and the pole S from first quartile to fourth quadrant counterclockwise for the center of circle, and
The magnetic pole 8 of this four quadrants is located on 45 °, 135 °, 225 ° and 315 ° directions,
Third layer is distributed with four groups of magnetic poles 8, and first group is located above the horizontal axis and with symmetrical two pole N of the longitudinal axis, the
Below the horizontal axis and with symmetrical two pole S of the longitudinal axis, third group is located on the left of the longitudinal axis and with described dibit
The symmetrical pole N of horizontal axis and the pole S, the 4th group is located on the right side of the longitudinal axis and with the symmetrical pole N of the horizontal axis and the pole S, the third
The pole N of group and the 4th group of magnetic pole is arranged in the top of the horizontal axis and the pole S is arranged in the lower section of the horizontal axis.It arranges in this way
The magnetic induction intensity that mode for cloth generates when can be to avoid the pole N or the S extremely upward of whole magnetic poles 8 is relatively small, combines whole magnetic
The magnetic induction line that the pole N of pole 8 or when S extremely upward generate is relatively high, the bigger advantage in magnetic field effective coverage.Meanwhile such row
Mode for cloth advantageously forms the magnetic field of gradient, when magnetic pole pallet 4 rotates and generates rotating excitation field, has the magnetic field of gradient to be conducive to
The continuous rolling of needle improves the processing efficiency of workpiece so that the motion profile of needle is more complicated, uniformity enhancing.
The two sides of each card slot 1 of one group of card slot 1 are equipped with detent slideway 16, two long sides setting of long slab 15
In this two detent slideways 16.
The storage slot 3 is non-magnet material.
The card slot 1 is non-magnet material.
Needle magnetic grinder for long hole rim buildup of the invention distinguishes several porose long slabs 15 of brill
It is put into card slot 1, two long sides of each long slab 15 are separately positioned on positioning in two detent slideways 16 of card slot 1, entire
The lower section of storage slot 3, which is located in cabinet 2, is equipped with magnetic grinding mechanism, and magnetic grinding mechanism is by linear reciprocating mechanism and sets
The magnetic rotary machine structure composition on this linear reciprocating mechanism top is set, magnetic force rotation is driven by linear reciprocating mechanism
Mechanism is moved in a straight line along the longitudinal direction of long slab 15, meanwhile, the rotation of magnetic rotary machine structure drives the magnetic pole of magnetic rotary machine structure
Pallet 4 rotates, in this way, the mixed solution and needle of the water base lapping liquid being arranged in card slot 1 are turned over the magnetic pole pallet 4 of rotation
Turn compound motion, 15 bore edges buildup of long slab is removed under the action of needle impact force.
Storage slot 3 is non-magnetic, and if be divided into 1 dry a card slot, card slot 1 is also non-magnetic.Storage slot 3 it is big
It is small, segmentation card slot 1 quantity need according to processing 15 quantity of long slab number, formulated by actual conditions.
Linear reciprocating mechanism is rotated by gear motor 10 with moving gear 17, by the engagement of gear 17 and rack gear 13 from
And drive slide unit II 11 to move along sliding rail II 12, the slide unit I 9 being connected with gear motor 10 to being moved along sliding rail I 5, due to
Gear motor 10 under control of the control system, may be implemented to rotate and reverse, to realize the reciprocating motion of magnetic pole pallet 4.
Magnetic pole tray motor 6 under control of the control system, also rotates and reverse two kinds of forms of motion, magnetic pole tray motor to realize
6 drive magnetic pole pallets 4 rotate and reverse.The sliding rail I 5 of linear reciprocating mechanism and the length of sliding rail II 12 are according to actual processing
The length of long slab 15 determines.
Embodiment 1
To the magnetic attrition process of 8 long hole rim buildup:
1,8 long slabs 15 are rinsed with clear water, removes spot, and dried up with hot hair dryer；
2,8 card slots 1 on storage slot 3 are chosen, 8 long slabs 15 are put into card slot 1, and is sliding by the detent of 1 two sides of card slot
Road 16 positions long slab 15, and storage slot 3 is placed on cabinet 2；
3, be respectively put into each card slot 1 water of 1000ml and the mixed solution of the water base lapping liquid of 400ml and 0.5kg needle (specification:
1.0mm × 5mm)；
4, start magnetic pole tray motor 6 and gear motor 10, gear motor 10 makees magnetic pole pallet 4 by automatic positive and negative rotation is set
Long to straight reciprocating motion is done along long slab while rotary motion, the revolving speed of magnetic pole tray motor 6 is set as 600r/min, positive and negative
Turning the time is set as 5min, and gear motor 10 is rotated with moving gear 17, and the magnetic pole pallet 4 in the case where gear 17 and rack gear 13 act on is done
Linear motion, point-to-point speed are set as 130mm/min, process time 40min；
5, after completing the process, card slot 1 is taken out, then long slab 15 is taken out out of card slot 1 out of storage slot 3, is blown with hair dryer
It is dry.
The needle magnetic grinder of long hole rim buildup of the invention, using needle magnetic finishing come to long plate hole
Edge buildup is processed, and by needle magnetic grinding, is improved the efficiency of long hole rim buildup removal, has been saved and be produced into
This, reduces labor intensity of workers；Magnetic grain needed for replacing the grinding of general magnetic using needle due to the collision of needle, is ploughed to plough and be drawn
Wiping, rolling can make long slab bore edges buildup quickly remove, and therefore the amount of needle can't be lost；Needle is adding
It can be used repeatedly during work, the consumption of needle does not have too many increase, ensure that be produced into a certain extent
Originally it will not increase on machining medium, improve economic benefit；The needle magnetic grinding of long hole rim buildup of the invention
Device, processing cleaning, process not will cause any pollution to environment.
Claims (5)
1. a kind of needle magnetic grinder for long hole rim buildup, it is characterised in that including cabinet, be arranged in this case
The storage slot of body upper surface is arranged in this storage slot and one group of card slot disposed in parallel, is arranged in the intracorporal magnetic force of the case
Mechanism is ground,
The magnetic grinding mechanism includes linear reciprocating mechanism, and the magnetic force on this linear reciprocating mechanism top is arranged in
Rotating mechanism, the linear reciprocating mechanism include bracket, are arranged in sliding I above this bracket, setting is slided herein
Sliding II of dynamic I lower section, described sliding I includes that side on the bracket is arranged and sets along the card slot longitudinal direction
Two sliding rails I set, across on this two sliding rails I and the slide unit I that is slidably connected with described two sliding rails I, the sliding
II includes the bottom plate of setting on the bracket, two sliding rails II and rack gear on this bottom plate is arranged in, with described two cunnings
The slide unit II that rail II is slidably connected is arranged in the gear motor on the slide unit II, is connected with the output end of this gear motor
Gear, this gear is meshed with the rack gear, and the gear motor is fixedly connected with the slide unit I,
The magnetic rotary machine structure includes the magnetic pole tray motor being arranged on the slide unit I, with this magnetic pole tray motor
Several magnetic poles on this magnetic pole pallet are arranged in the magnetic pole pallet that output end is connected.
2. the needle magnetic grinder according to claim 1 for long hole rim buildup, it is characterised in that described
Several magnetic poles include eight poles N and eight poles S, eight poles N concentrate on side, and eight poles S concentrate on separately
Side, several magnetic poles are spread to the periphery with the center of circle of magnetic pole pallet and are distributed in three layers, and first layer is counterclockwise
Successively from the longitudinal axis to horizontal axis on be distributed as the pole N, the pole N, the pole S and the pole S, and be located at the magnetic pole of the longitudinal axis to the center of circle distance greater than being located at
The magnetic pole of horizontal axis to the center of circle distance,
The second layer is with R1It is distributed as the pole N, the pole N, the pole S and the pole S from first quartile to fourth quadrant counterclockwise for the center of circle, and
The magnetic pole of this four quadrants is located on 45 °, 135 °, 225 ° and 315 ° directions,
Third layer is distributed with four groups of magnetic poles, and first group is located above the horizontal axis and with symmetrical two pole N of the longitudinal axis, and second
Group is located at below the horizontal axis and with symmetrical two pole S of the longitudinal axis, and third group is located on the left of the longitudinal axis and with the cross
The axisymmetric pole N and the pole S, the 4th group is located on the right side of the longitudinal axis and with the symmetrical pole N of the horizontal axis and the pole S, the third group
The top of the horizontal axis is arranged in the pole N of the 4th group of magnetic pole and the pole S is arranged in the lower section of the horizontal axis.
3. the needle magnetic grinder according to claim 1 for long hole rim buildup, it is characterised in that described
The two sides of each card slot of one group of card slot be equipped with detent slideway, two long sides of long slab are arranged in this two detent slideways
It is interior.
4. the needle magnetic grinder according to claim 1 for long hole rim buildup, it is characterised in that described
Storage slot be non-magnet material.
5. the needle magnetic grinder according to claim 1 for long hole rim buildup, it is characterised in that described
Card slot be non-magnet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622336.4A CN110202458B (en) | 2019-07-11 | 2019-07-11 | Magnetic needle magnetic grinding device for long plate hole edge tumor accumulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910622336.4A CN110202458B (en) | 2019-07-11 | 2019-07-11 | Magnetic needle magnetic grinding device for long plate hole edge tumor accumulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110202458A true CN110202458A (en) | 2019-09-06 |
| CN110202458B CN110202458B (en) | 2024-04-09 |
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ID=67797234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910622336.4A Active CN110202458B (en) | 2019-07-11 | 2019-07-11 | Magnetic needle magnetic grinding device for long plate hole edge tumor accumulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110202458B (en) |
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