CN107877311A - A kind of sanding apparatus for propeller grinding apparatus - Google Patents
A kind of sanding apparatus for propeller grinding apparatus Download PDFInfo
- Publication number
- CN107877311A CN107877311A CN201711090827.6A CN201711090827A CN107877311A CN 107877311 A CN107877311 A CN 107877311A CN 201711090827 A CN201711090827 A CN 201711090827A CN 107877311 A CN107877311 A CN 107877311A
- Authority
- CN
- China
- Prior art keywords
- cabinet
- fixedly connected
- motor
- propeller
- guide rod
- 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.)
- Granted
Links
- 238000005498 polishing Methods 0.000 claims abstract description 26
- 229910001651 emery Inorganic materials 0.000 claims description 13
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 abstract description 20
- 230000003139 buffering effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
- B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
- B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
-
- 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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
-
- 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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a kind of sanding apparatus for propeller grinding apparatus, including cabinet and motor, guide rod is fixedly connected with by base between the inside top of cabinet and bottom, motor is located at the inner side of cabinet, retainer ring is socketed with motor, movable block has been fixedly connected with left and right sides of retainer ring, movable block is socketed on the guide bar, buffer spring and secondary spring are socketed with guide rod, the top of buffer spring is fixedly connected on the top of guide rod.The present invention is by setting cabinet, motor, guide rod, retainer ring, movable block, buffer spring and secondary spring to cooperate, solve the problems, such as that existing propeller sanding apparatus produces reaction vibration force to the polishing of propeller surface rigidity and is unfavorable for sanding apparatus stability, it is unstable when solving the problems, such as existing propeller sanding apparatus by larger reaction force by setting support bar, ventilative flat board, balancing pole, balance plate and ventilative through hole to cooperate.
Description
Technical field
The present invention relates to propeller processing technical field, specially a kind of sanding apparatus for propeller grinding apparatus.
Background technology
Propeller refers to rotate in air or water by blade, and engine rotation power is converted into the device of propulsive force,
The leaf that can have two or more is connected with hub, and the one side backward of leaf is helicoid or a kind of propulsion peculiar to vessel for being similar to helicoid
Device, propeller are divided into many kinds, and application is also quite varied, the propeller of such as aircraft and steamer, and propeller is that naval vessel promotes system
Important component in system, the production process of propeller include casting, polishing, pitch test, blade balance test and correction, wherein
Polishing is crucial, and polishing decides the production efficiency and quality of propeller, and propeller manufacturing enterprise in China's is substantially artificial at present
Polishing, manual polishing low production efficiency, product rejection rate is high, and worker's working strength is big, and working environment damages workers ' health, in recent years
Coming, a kind of propeller dresser occur, it includes body frame, base and control device, and control device is arranged on the body frame,
Sanding apparatus is connected with body frame.
Propeller sanding apparatus is in polishing, the surface application pressure to propeller, the motor rotation in sanding apparatus
Turn drive emery wheel to polish to propeller surface, sanding apparatus carries out rigid polishing to propeller surface, and emery wheel is by spiral
The reaction vibration force on oar surface produces certain vibration force to sanding apparatus, is unfavorable for the stable polishing of sanding apparatus.
The content of the invention
（One）The technical problem of solution
In view of the shortcomings of the prior art, the invention provides a kind of sanding apparatus for propeller grinding apparatus, solve existing
Some propeller sanding apparatus produce reaction vibration force to the polishing of propeller surface rigidity and are unfavorable for sanding apparatus stability
Problem.
（Two）Technical scheme
To achieve the above object, the present invention provides following technical scheme：A kind of sanding apparatus for propeller grinding apparatus, bag
Cabinet and motor are included, guide rod, the drive are fixedly connected with by base between the inside top of the cabinet and bottom
Dynamic motor is located at the inner side of cabinet, and retainer ring is socketed with the motor, and the left and right sides of the retainer ring is fixed to be connected
Movable block is connected to, the movable block socket on the guide bar, is socketed with buffer spring and secondary spring on the guide rod, described
The top of buffer spring is fixedly connected on the top of guide rod, and the other end of buffer spring is fixedly connected on the upper table of movable block
Face, the top of the secondary spring are fixedly connected on the lower surface of movable block, and the other end of secondary spring is fixedly connected on guiding
The bottom of bar, the output shaft of the motor runs through the inside bottom of cabinet and fixed is fixedly connected with emery wheel by shaft coupling
Axle, polishing emery wheel is fixedly connected with the grinding wheel spindle, the left and right sides top of the motor has been fixedly connected with support
Bar, ventilative flat board is fixedly connected between the top of two support bars, the inside top of the cabinet is fixedly connected with balancing pole,
The bottom of the balancing pole is fixedly connected with balance plate, and ventilative through hole is offered at the top of the cabinet.
Preferably, the junction of the cabinet and driving motor output shaft is provided with sealed bearings, the output shaft of motor
Annexation between sealed bearings is to be flexibly connected.
Preferably, the quantity of the guide rod is four, and four guide rods are respectively distributed to the inner side corner of cabinet.
Preferably, the quantity of the movable block is four, and four movable blocks and four guide rods are set to correspond, living
Annexation between motion block and guide rod is is flexibly connected, and the center of four movable blocks is in same level.
Preferably, the quantity of the balance plate is four, and four balance plates are evenly distributed in cabinet by balancing pole
Side roof part.
Preferably, the balance plate with ventilative flat board to be arranged in parallel, open by the balance plate side relative with ventilative flat board
Provided with antiskid thread.
（Three）Beneficial effect
The invention provides a kind of sanding apparatus for propeller grinding apparatus.Possesses following beneficial effect：
（1）The present invention is by setting cabinet, motor, guide rod, retainer ring, movable block, buffer spring and secondary spring phase
Mutually coordinate, when equipment is polished propeller surface, the output shaft of motor drives grinding wheel spindle to rotate by shaft coupling,
Grinding wheel spindle drives polishing emery wheel to carry out rotary-grinding to propeller surface, and the reaction force that polishing emery wheel is subject to is passed by grinding wheel spindle
Pass shaft coupling, reaction force is passed to motor by shaft coupling, and the retainer ring on motor is with the work of motor
Dynamic and movable, the movable block of retainer ring both sides is movable on the guide bar, and the reaction force that buffer spring comes to movable block transmission enters
Row buffering, secondary spring carry out aiding in connection and buffering to movable block, and the stability of Support activity block activity effectively will polishing
The reaction force of emery wheel transmission enters row buffering, solves existing propeller sanding apparatus and the polishing of propeller surface rigidity is produced
Reaction vibration force is unfavorable for the problem of sanding apparatus stability.
（2）The present invention is being set by setting support bar, ventilative flat board, balancing pole, balance plate and ventilative through hole to cooperate
Standby when polishing propeller surface, during by excessive reaction force, movable block is movable on the guide bar, while drives electricity
Machine is movable upwards, and balance plate acts on ventilative flat board, ensures the reaction force balance that motor is subject to, what buffer spring was subject to
Buffering dynamics are averaged, while spacing to motor progress, prevent the over-activity of motor, improve sanding apparatus to spiral
The stable type of oar surface polishing, while motor 2 is run into caused heat and passes through ventilative flat board 12 and ventilative through hole 15
Shed in time, it is unstable when solving the problems, such as existing propeller sanding apparatus by larger reaction force.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is enlarged drawing at A in Fig. 1.
In figure：1 cabinet, 2 motors, 3 guide rods, 4 retainer rings, 5 movable blocks, 6 buffer springs, 7 secondary springs, 8
It is axle device, 9 grinding wheel spindles, 10 polishing emery wheels, 11 support bars, 12 ventilative flat boards, 13 balancing poles, 14 balance plates, 15 ventilative through holes, 16 close
Seal bearing.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of protection of the invention.
As shown in Figure 1-2, the present invention provides a kind of technical scheme：A kind of sanding apparatus for propeller grinding apparatus,
Including cabinet 1 and motor 2, guide rod 3 is fixedly connected with by base between the inside top of cabinet 1 and bottom, is oriented to
The quantity of bar 3 is four, and four guide rods 3 are respectively distributed to the inner side corner of cabinet 1, and motor 2 is located at the interior of cabinet 1
Side, retainer ring 4 is socketed with motor 2, the left and right sides of retainer ring 4 has been fixedly connected with movable block 5, and movable block 5 is socketed
On guide rod 3, the quantity of movable block 5 is four, and four movable blocks 5 and four guide rods 3 are set to correspond, movable block
Annexation between 5 and guide rod 3 is is flexibly connected, and the center of four movable blocks 5 is in same level, on guide rod 3
Buffer spring 6 and secondary spring 7 are socketed with, the top of buffer spring 6 is fixedly connected on the top of guide rod 3, buffer spring 6
The other end is fixedly connected on the upper surface of movable block 5, and the top of secondary spring 7 is fixedly connected on the lower surface of movable block 5, auxiliary
The other end of spring 7 is fixedly connected on the bottom of guide rod 3, and the output shaft of motor 2 runs through the inside bottom of cabinet 1 and consolidated
Surely grinding wheel spindle 9 is fixedly connected with by shaft coupling 8, polishing emery wheel 10, cabinet 1 and motor 2 is fixedly connected with grinding wheel spindle 9
The junction of output shaft is provided with sealed bearings 16, and the annexation between the output shaft and sealed bearings 16 of motor 2 is work
Dynamic connection, the left and right sides top of motor 2 have been fixedly connected with support bar 11, fixed between the top of two support bars 11
It is connected with ventilative flat board 12, the inside top of cabinet 1 is fixedly connected with balancing pole 13, and the bottom of balancing pole 13 is fixedly connected with flat
Weigh plate 14, and the quantity of balance plate 14 is four, and four balance plates 14 are evenly distributed on the medial roof of cabinet 1 by balancing pole 13
Portion, with ventilative flat board 12 to be arranged in parallel, the side relative with ventilative flat board 12 of balance plate 14 offers anti-skidding balance plate 14
Screw thread, increase the frictional force between balance plate 14 and ventilative flat board 12, be advantageous to the balance to motor 2, the top of cabinet 1
Ventilative through hole 15 is offered, ventilative through hole 15 sheds the heat in cabinet 1 in time, prevents the temperature inside cabinet 1 from raising.
It can to sum up obtain, the present invention is by setting cabinet 1, motor 2, guide rod 3, retainer ring 4, movable block 5, buffering elastic
Spring 6 and secondary spring 7 cooperate, and when equipment is polished propeller surface, the output shaft of motor 2 passes through shaft coupling
Device 8 drive grinding wheel spindle 9 rotate, grinding wheel spindle 9 drive polishing emery wheel 10 to propeller surface carry out rotary-grinding, polishing emery wheel 10 by
To reaction force shaft coupling 8 is passed to by grinding wheel spindle 9, reaction force is passed to motor 2, driving electricity by shaft coupling 8
Retainer ring 4 on machine 2 is movable and movable with motor 2, and the movable block 5 of the both sides of retainer ring 4 is movable on guide rod 3,
Buffer spring 6 transmits the reaction force come to movable block 5 and enters row buffering, and it is gentle that secondary spring 7 carries out auxiliary connection to movable block 5
Punching, 2 stability of the activity of Support activity block 5, the reaction force that emery wheel 10 of polishing transmits effectively is entered into row buffering, solved existing
Some propeller sanding apparatus produce reaction vibration force to the polishing of propeller surface rigidity and are unfavorable for sanding apparatus stability
Problem, by setting support bar 11, ventilative flat board 12, balancing pole 13, balance plate 14 and ventilative through hole 15 to cooperate, in equipment
When polishing propeller surface, during by excessive reaction force, movable block 5 is movable on guide rod 3, while drives electricity
Machine 2 is movable upwards, and balance plate 14 acts on ventilative flat board 12, ensures the reaction force balance that motor 2 is subject to, buffer spring
6 buffering dynamics being subject to are averaged, while motor 2 are carried out spacing, prevent the over-activity of motor 2, improve polishing
The stable type that device is polished propeller surface, while motor 2 is run into caused heat and passes through the He of flat board 12 of breathing freely
Ventilative through hole 15 sheds in time, unstable when solving existing propeller sanding apparatus by larger reaction force to ask
Topic.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence " including a reference structure ", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of sanding apparatus for propeller grinding apparatus, including cabinet（1）And motor（2）, it is characterised in that：Institute
State cabinet（1）Inside top and bottom between guide rod is fixedly connected with by base（3）, the motor（2）It is located at
Cabinet（1）Inner side, the motor（2）On be socketed with retainer ring（4）, the retainer ring（4）The left and right sides it is fixed
It is connected with movable block（5）, the movable block（5）It is socketed in guide rod（3）On, the guide rod（3）On be socketed with buffer spring
（6）And secondary spring（7）, the buffer spring（6）Top be fixedly connected on guide rod（3）Top, buffer spring（6）'s
The other end is fixedly connected on movable block（5）Upper surface, the secondary spring（7）Top be fixedly connected on movable block（5）'s
Lower surface, secondary spring（7）The other end be fixedly connected on guide rod（3）Bottom, the motor（2）Output shaft pass through
Wear cabinet（1）Inside bottom and fixation pass through shaft coupling（8）It is fixedly connected with grinding wheel spindle（9）, the grinding wheel spindle（9）Upper fixation
It is connected with polishing emery wheel（10）, the motor（2）Left and right sides top be fixedly connected with support bar（11）, two branch
Strut（11）Top between be fixedly connected with ventilative flat board（12）, the cabinet（1）Inside top be fixedly connected with balance
Bar（13）, the balancing pole（13）Bottom be fixedly connected with balance plate（14）, the cabinet（1）Top offer it is ventilative logical
Hole（15）.
A kind of 2. sanding apparatus for propeller grinding apparatus according to claim 1, it is characterised in that：The cabinet
（1）With motor（2）The junction of output shaft is provided with sealed bearings（16）, motor（2）Output shaft and sealed bearings
（16）Between annexation for be flexibly connected.
A kind of 3. sanding apparatus for propeller grinding apparatus according to claim 1, it is characterised in that：The guiding
Bar（3）Quantity be four, four guide rods（3）It is respectively distributed to cabinet（1）Inner side corner.
A kind of 4. sanding apparatus for propeller grinding apparatus according to claim 1, it is characterised in that：The activity
Block（5）Quantity be four, four movable blocks（5）With four guide rods（3）Set to correspond, movable block（5）With guiding
Bar（4）Between annexation for be flexibly connected, four movable blocks（5）Center in same level.
A kind of 5. sanding apparatus for propeller grinding apparatus according to claim 1, it is characterised in that：The balance
Plate（14）Quantity be four, four balance plates（14）Pass through balancing pole（13）It is evenly distributed on cabinet（1）Inside top.
A kind of 6. sanding apparatus for propeller grinding apparatus according to claim 1, it is characterised in that：The balance
Plate（14）With ventilative flat board（12）To be arranged in parallel, balance plate（14）With ventilative flat board（12）Relative side offers anti-skidding
Screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711090827.6A CN107877311B (en) | 2017-11-08 | 2017-11-08 | Polishing device for propeller polishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711090827.6A CN107877311B (en) | 2017-11-08 | 2017-11-08 | Polishing device for propeller polishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107877311A true CN107877311A (en) | 2018-04-06 |
| CN107877311B CN107877311B (en) | 2024-03-12 |
Family
ID=61779550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711090827.6A Active CN107877311B (en) | 2017-11-08 | 2017-11-08 | Polishing device for propeller polishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107877311B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333196A (en) * | 2018-10-17 | 2019-02-15 | 湖州华豪机械有限公司 | A kind of grinding device for machining |
| CN109590855A (en) * | 2019-01-25 | 2019-04-09 | 青岛维青机械有限公司 | A kind of casting sprue grinding attachment |
| CN110524354A (en) * | 2019-09-26 | 2019-12-03 | 常州大学 | A kind of frequency modulation impact grinding bed |
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| JP2005047481A (en) * | 2003-01-21 | 2005-02-24 | Bridgestone Corp | In-wheel motor system |
| CN105449946A (en) * | 2015-12-16 | 2016-03-30 | 嵊州市北宇玲电机厂 | Silicon steel sheet punching machine for production of fan motor rotor |
| CN205552222U (en) * | 2016-05-05 | 2016-09-07 | 上海丙嘉精密机械科技有限公司 | Emery wheel microseism grinding machanism of rectangular array |
| CN107139051A (en) * | 2017-06-09 | 2017-09-08 | 赵咪咪 | A kind of timber processing sanding apparatus |
| CN207629787U (en) * | 2017-11-08 | 2018-07-20 | 镇江市丹徒区顺发船舶螺旋桨有限公司 | A kind of grinding device for propeller grinding apparatus |
-
2017
- 2017-11-08 CN CN201711090827.6A patent/CN107877311B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005047481A (en) * | 2003-01-21 | 2005-02-24 | Bridgestone Corp | In-wheel motor system |
| CN105449946A (en) * | 2015-12-16 | 2016-03-30 | 嵊州市北宇玲电机厂 | Silicon steel sheet punching machine for production of fan motor rotor |
| CN205552222U (en) * | 2016-05-05 | 2016-09-07 | 上海丙嘉精密机械科技有限公司 | Emery wheel microseism grinding machanism of rectangular array |
| CN107139051A (en) * | 2017-06-09 | 2017-09-08 | 赵咪咪 | A kind of timber processing sanding apparatus |
| CN207629787U (en) * | 2017-11-08 | 2018-07-20 | 镇江市丹徒区顺发船舶螺旋桨有限公司 | A kind of grinding device for propeller grinding apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109333196A (en) * | 2018-10-17 | 2019-02-15 | 湖州华豪机械有限公司 | A kind of grinding device for machining |
| CN109590855A (en) * | 2019-01-25 | 2019-04-09 | 青岛维青机械有限公司 | A kind of casting sprue grinding attachment |
| CN110524354A (en) * | 2019-09-26 | 2019-12-03 | 常州大学 | A kind of frequency modulation impact grinding bed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107877311B (en) | 2024-03-12 |
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