CN105856055B - A kind of comminution method of three-section wave raceway - Google Patents
A kind of comminution method of three-section wave raceway Download PDFInfo
- Publication number
- CN105856055B CN105856055B CN201610452187.8A CN201610452187A CN105856055B CN 105856055 B CN105856055 B CN 105856055B CN 201610452187 A CN201610452187 A CN 201610452187A CN 105856055 B CN105856055 B CN 105856055B
- Authority
- CN
- China
- Prior art keywords
- workpiece
- microstoning
- oilstone
- superfinishing
- raceway
- 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.)
- Active
Links
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
- B24B35/00—Machines or devices designed for superfinishing surfaces on work, i.e. by means of abrading blocks reciprocating with high frequency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
A kind of comminution method of three-section wave raceway, it is related to a kind of processing method of raceway.Three-section wave raceway can not meet the geometric accuracy of bearing collar path by way of conventional manual pressure, cause the abrasion of bearing collar path, reduce the service life of bearing.Step one in the present invention：Thick grinding；Step 2：Just configuration and superfinishing reference plane it is selected；Step 3：Treat the positioning work of microstoning workpiece；Step 4：Oilstone setting work；Step 5：Microstoning works：Start control system, oilstone frame starts to rotate in the presence of control system, oilstone drives lower edge first to treat that the bearing collar path width of microstoning workpiece is reciprocating in oilstone frame simultaneously, treat that microstoning workpiece applies concussion to first by the swing unit in full-automatic Superfinishing machine again, finally by cylinder and constant-voltage equipment pressure；Step 6：The microstoning of other workpiece.The present invention is used for the microstoning of lobed raceway.
Description
Technical field
Present invention relates particularly to a kind of comminution method of three-section wave raceway.
Background technology
Petal waveform race bearing is mainly used in having on the main frame of the requirement of special operation condition, such as its outer rolling of Aero-engine Bearing
Road is in three-section wave shape.Petal waveform refers to that raceway is rendered as equally distributed waveform in circumferencial direction, class after the amplification of its shape
Floweriness lobed, so gaining the name, the difference of its Wave crest and wave trough is general between 0.05~0.15mm.
Petal waveform bearing collar path is the working surface of bearing, its geometric accuracy, shape, surface roughness, surface
Stress state, metamorphic layer residual volume all directly affect the quality of bearing, and it determines the running accuracy, bearing capacity and longevity of bearing
Life etc..Because bearing outer ring ball track is non-circular structure, traditional handicraft and equipment can not realize microstoning, do not possess in lappingout and add
In the case of work ability, the technique that can only be polished using banding grinding-materials such as sand paper is entered to bearing collar path surface
Row polishing, it is grinding-material is closely pressed on bearing collar path surface, bearing ring with manual pressure mode
Make centering circular-rotation, realize the removal of bearing collar path surface metal-layer.Its deficiency and defect：Due to whole processed
Journey is manual pressure, it is impossible to applies identical pressure in bearing ring circumferencial direction, causes the gold on bearing collar path surface
Belong to removal amount different so that difference occurs in the stress on bearing collar path surface, and the bearing capacity of bearing also occurs in that difference therewith
Different, this leverages the service life of bearing.The surface roughness of bearing collar path is also unable to reach technological requirement simultaneously,
Bearing collar path is caused to wear and tear, this reduces the service life of bearing.This manual pressure mode can not meet bearing holder (housing, cover)
The geometric accuracy of raceway is enclosed, the running accuracy of bearing is reduced.With the continuous lifting of host performance, to required bearing also to
High accuracy and high stability direction is developed, problem above exists and do not solved effectively so far.
The content of the invention
It is an object of the invention to provide a kind of comminution method of three-section wave raceway, led to solving three-section wave raceway
The geometric accuracy of bearing collar path can not be met by crossing the mode of conventional manual pressure, cause the abrasion of bearing collar path,
The problem of reducing the service life of bearing.
The present invention adopts the technical scheme that to solve above-mentioned technical problem：
A kind of comminution method of three-section wave raceway, it is characterised in that：The comminution method comprises the following steps：
Step one：Grinding：Multiple processing workpiece are taken, multiple processing workpiece grinding are subjected to one by one, grinding is every
One, which is formed, after the grinding reference plane A of individual processing workpiece treats microstoning workpiece；
Step 2：Just configuration and superfinishing reference plane it is selected：Cooperated and treated using full-automatic Superfinishing machine and lathe
Microstoning workpiece carries out fine ginding processing, sets each grinding reference plane A treated in microstoning workpiece automatically to surpass
Superfinishing reference plane to be processed in smart machine；
Step 3：Treat the positioning work of microstoning workpiece：It is multiple in step one to treat microstoning workpiece using right
Enter it is left go out order enter in full-automatic Superfinishing machine, treat that microstoning workpiece is placed in full-automatic Superfinishing machine one by one by multiple first
Conveyer belt on the backstop that is formed in work aligning, full-automatic Superfinishing machine treat microstoning workpiece from work aligning by first
Separate, and treat that microstoning workpiece is delivered on the station in full-automatic Superfinishing machine by first by material returned arm, first is treated
Microstoning workpiece is fixed on oilstone frame by compressing wheel assembly；
Step 4：The setting work of oilstone：By oilstone be arranged on the pressing device in full-automatic Superfinishing machine and oilstone with
Constant-voltage equipment in full-automatic Superfinishing machine is connected, and treats that microstoning workpiece is affixed for first in the abradant surface and step 3 of oilstone
Tightly；
Step 5：Microstoning works：Start control system, oilstone frame starts to rotate in the presence of control system, its
Rotating speed is 2000~2500rpm, while the bearing ring that oilstone treats microstoning workpiece in the drive lower edge first of oilstone frame
Raceway width is reciprocating, then treats that microstoning workpiece is applied to first by the swing unit in full-automatic Superfinishing machine
Plus the concussion that amplitude is 0.5mm, frequency is 20~25 hertz, apply constant hang down to oilstone finally by cylinder and constant-voltage equipment
Directly in the pressure of first bearing collar path for treating microstoning workpiece；
Step 6：The superfinishing process of other workpiece and first superfinishing process for treating microstoning workpiece are same
Reason, forms lobed raceway after the completion for the treatment of superfinishing all, swing unit returns to original position and awaited orders, and drawing mechanism rolls the good lobed of superfinishing
Conveyer belt is sent in road back to one by one, and last multiple lobed raceways are sent lathe.
The invention has the advantages that：
1st, the present invention has versatility, can improve the geometric accuracy, shape, rough surface of petal waveform bearing collar path
Degree, surface stress, metamorphic layer residual volume all directly affect the quality of bearing, correct grinding and give bearing ring working surface,
The defect that i.e. workpiece middle (center) bearing lasso raceway is caused, enables to meet the precision of bearing and life requirements.
2nd, by the mutual cooperation of oilstone frame, oilstone and constant-voltage equipment can make the bearing ring of workpiece realize high rotating speed and
Shake at a high speed, high rotating speed and at a high speed concussion can fully improve the cutting force of oilstone, and the reciprocating motion of oilstone ensure that bearing holder (housing, cover)
Raceway shape of generatrix is enclosed, the constant of oilstone pressure ensures the uniform of bearing collar path circumferencial direction metal removal rate.
Brief description of the drawings
Filled arrows are to treat microstoning in the working state figure that Fig. 1 cooperates for full-automatic Superfinishing machine and lathe, figure
The charging aperture of workpiece 1, hollow arrow is to treat the discharging opening of microstoning workpiece 1；
Fig. 2 is that drive disk 6 and two pinch roller 3-1 mutual cooperations compress the working state figure for treating microstoning workpiece 1；
Fig. 3 is the main structure diagram of lobed raceway 5；
Fig. 4 is the axial, cross-sectional view of lobed raceway 5.
Embodiment
Embodiment one：Illustrate the lappingout in present embodiment, present embodiment with reference to Fig. 1, Fig. 2, Fig. 3 and Fig. 4
Method comprises the following steps：
Step one：Grinding：Multiple processing workpiece are taken, multiple processing workpiece grinding are subjected to one by one, grinding is every
Formed after the grinding reference plane A of individual processing workpiece and treat microstoning workpiece 1；
Step 2：Just configuration and superfinishing reference plane it is selected：Cooperated and treated using full-automatic Superfinishing machine and lathe
Microstoning workpiece 1 carries out fine ginding processing, sets each grinding reference plane A treated in microstoning workpiece 1 as full-automatic
Superfinishing reference plane to be processed in Superfinishing machine；
Step 3：Treat the positioning work of microstoning workpiece 1：It is multiple in step one to treat microstoning workpiece 1 using use
The right side enter it is left go out order enter in full-automatic Superfinishing machine, treat that microstoning workpiece 1 is placed in full-automatic superfinishing one by one by multiple first
First is treated microstoning workpiece 1 from workpiece by the backstop formed on the conveyer belt 2 in machine in work aligning, full-automatic Superfinishing machine
Separated in permutation, and treat that microstoning workpiece 1 is delivered on the station in full-automatic Superfinishing machine by first by material returned arm, the
One is treated that microstoning workpiece 1 is fixed on oilstone frame 7 by compressing wheel assembly 3；
Step 4：The setting work of oilstone 8：Oilstone 8 is arranged on the pressing device in full-automatic Superfinishing machine and oilstone 8
It is connected with the constant-voltage equipment in full-automatic Superfinishing machine, microstoning workpiece 1 is treated for first in the abradant surface and step 3 of oilstone 8
Mutually it is adjacent to；
Step 5：Microstoning works：Start control system, oilstone frame 7 starts to rotate in the presence of control system, its
Rotating speed is 2000~2500rpm, while the bearing holder (housing, cover) that oilstone 8 treats microstoning workpiece 1 in the drive lower edge first of oilstone frame 7
Enclose raceway width reciprocating, then microstoning work is treated by the swing unit 4 pair first in full-automatic Superfinishing machine
The application amplitude of part 1 is 0.5mm, the concussion that frequency is 20~25 hertz, and perseverance is applied to oilstone 8 finally by cylinder and constant-voltage equipment
The fixed pressure perpendicular to first bearing collar path for treating microstoning workpiece 1；
Step 6：The superfinishing process of other workpiece and first superfinishing process for treating microstoning workpiece 1 are same
Reason, forms lobed raceway 5, swing unit 4 returns to original position and awaited orders after the completion for the treatment of superfinishing all, drawing mechanism is by the good lobed of superfinishing
Raceway 5 sends conveyer belt 2 back to one by one, and last multiple lobed raceways 5 are sent lathe.
Full-automatic Superfinishing machine in present embodiment is that the full-automatic Superfinishing machine improvement sold by existing market is obtained,
The microstoning of petal waveform raceway is carried out using full-automatic Superfinishing machine, treats that the axially position of microstoning workpiece 1 passes through oil
Stone frame 7 realizes that it compresses mode and coordinates constant-voltage equipment to realize by oilstone 8, treats that the radial positioning of microstoning workpiece 1 uses nothing
The heart is supported, and it specifically uses predeformation clamping device, its concrete structure and annexation and CN2013106170410 with workpiece
Disclosed in content it is consistent.The concussion of oilstone 8 uses the small concussion mode of large amplitude, and the pressurized applications of oilstone 8 have the pressure of constant-voltage equipment
Tight device.
Control system in present embodiment is Siemens 840 D CNC System.The time of contact of oilstone 8, the rotating speed of oilstone frame 7 is swung
Frequency can be set on guidance panel, and the parameter of 30 kinds of workpiece can be stored in system.Fault diagnosis system monitoring lathe
Institute is functional, and failure will be directly displayed on panel.
The contact maximum of oilstone 8 can reach 500N in present embodiment.
The motor for driving oilstone frame 7 to rotate in present embodiment is high performance servo motor, and motor speed can be in operating surface
Set on plate.
The position of related features for the bearing collar path that first is treated microstoning workpiece 1 is +/- 5 μm in present embodiment, i.e.,
It it is +/- 5 μm from reference plane to the tolerance at raceway center.Drawn by sampling test, with the rolling between each workpiece of batch products
Road position deviation is no more than +/- 3 μm.
Each end face treated away from end face locking groove in microstoning workpiece 1 is grinding reference plane in present embodiment
An end face away from end face locking groove is also mill in A, i.e., the lobed raceway 5 each formed after microstoning workpiece 1 is processed
Cut reference plane A.End face B and end face C in lobed raceway 5 are the whole face grinding after microstoning.
Embodiment two：Present embodiment is step in the further restriction of embodiment one, present embodiment
Oilstone frame 7 in rapid three is vertically mounted in the lathe bed of lathe, and first is treated that microstoning workpiece 1 is directly born against on drive disk 6,
The pressure adjustable of wheel assembly 3 is compressed, first inner ring for treating microstoning workpiece 1 carries out hydraulic stator, superfinishing oil by mandrel
Sprayed from mandrel.
Embodiment three：Present embodiment is pressure in the further restriction of embodiment two, present embodiment
Bearing up pulley component 3 includes eccentric setting between two pinch rollers 3-1, two pinch roller 3-1, and two pinch roller 3-1 spacing is according to workpiece
Size is adjusted.
Embodiment four：Present embodiment is the further restriction of embodiment one or three, present embodiment
Swing unit 4 in middle step 5 is straight line swing unit, and straight line swing unit is driven by servomotor, and amplitude is by an eccentric machine
Structure is produced, adjustable amplitude, and the straight line swing unit is arranged on servo slide table, and the straight line swing unit carries out vertical direction
Move up and down and horizontal direction on it is movable.
Embodiment five：Present embodiment is oil in the further restriction of embodiment four, present embodiment
Stone 8 is high intensity CBN oilstones.
Illustrate following examples with reference to beneficial effects of the present invention：
Embodiment one：Drawn by multiple sampling test：Treat that the radial direction of microstoning workpiece 1 uses predeformation clamping device
Effect substantially, has reached bearing ring predeformation purpose；Axially treat without any moving between microstoning workpiece 1 and positioning fixture,
Be loaded stabilization.The bearing ring speed setting for treating microstoning workpiece 1 is 1500rpm, and the amplitude of oilstone 8 is set as 0.5mm, concussion
Frequency setting is 3000 beats/min, and the self-sharpening of oilstone 8 is good, and the raceway face after lappingout is good, and finished surface is uniform, no list
One direction is reflective, and its surface is reflective in dispersion shape.
Raceway lappingout 20, qualification rate 100% outside a collection of Aero-engine Bearing are processed according to the setting of above-mentioned parameter
Circularity μm：125.28 technological requirement：120~130 μm
Surface roughness：The technological requirements of Ra 0.0515：0.063
Pt values：0.653 μm of technological requirement：≤2μm
Above-mentioned result of the test complies fully with technological requirement of this area to bearing ring.
Claims (5)
1. a kind of comminution method of three-section wave raceway, it is characterised in that：The comminution method comprises the following steps：
Step one：Grinding：Multiple processing workpiece are taken, multiple processing workpiece are subjected to grinding one by one, grinding is each to be added
One, which is formed, after the grinding reference plane A of work workpiece treats microstoning workpiece (1)；
Step 2：Just configuration and superfinishing reference plane it is selected：Cooperated using full-automatic Superfinishing machine and lathe and treat superfinishing
Process workpiece (1) and carry out fine ginding processing, set each grinding reference plane A treated in microstoning workpiece (1) as full-automatic
Superfinishing reference plane to be processed in Superfinishing machine, it is mill each to treat an end face away from end face locking groove in microstoning workpiece 1
Cut reference plane A；
Step 3：Treat the positioning work of microstoning workpiece (1)：It is multiple in step one to treat microstoning workpiece (1) using use
The right side enter it is left go out order enter in full-automatic Superfinishing machine, first by multiple, to treat that microstoning workpiece (1) is placed in one by one full-automatic super
The backstop formed on conveyer belt (2) in smart machine in work aligning, full-automatic Superfinishing machine treats microstoning workpiece (1) by first
Separated from work aligning, and treat that microstoning workpiece (1) is delivered in full-automatic Superfinishing machine by first by material returned arm
On station, first is treated that microstoning workpiece (1) is fixed on oilstone frame (7) by compressing wheel assembly (3)；
Step 4：The setting work of oilstone (8)：Oilstone (8) is arranged on the pressing device in full-automatic Superfinishing machine and oilstone
(8) it is connected with the constant-voltage equipment in full-automatic Superfinishing machine, microstoning is treated for first in the abradant surface and step 3 of oilstone (8)
Workpiece (1) is mutually adjacent to；
Step 5：Microstoning works：Start control system, oilstone frame (7) starts to rotate in the presence of control system, its turn
Speed is 2000~2500rpm, while the axle that oilstone (8) treats microstoning workpiece (1) in the drive lower edge first of oilstone frame (7)
Bearing ring raceway width is reciprocating, then treats superfinishing to first by the swing unit (4) in full-automatic Superfinishing machine
Processing workpiece (1) application amplitude is 0.5mm, the concussion that frequency is 20~25 hertz, finally by cylinder and constant-voltage equipment to oil
Stone (8) applies the pressure of the constant bearing collar path that microstoning workpiece (1) is treated perpendicular to first；
Step 6：The superfinishing process of other workpiece and first superfinishing process for treating microstoning workpiece (1) similarly,
Lobed raceway (5) is formed after the completion for the treatment of superfinishing all, swing unit (4) returns to original position and await orders, drawing mechanism is by the good valve of superfinishing
Shape raceway (5) sends conveyer belt (2) back to one by one, and last multiple lobed raceways (5) are sent lathe.
2. a kind of comminution method of three-section wave raceway according to claim 1, it is characterised in that：Oil in step 3
Stone frame (7) is vertically mounted in the lathe bed of lathe, and first is treated that microstoning workpiece (1) is directly born against on drive disk (6), is compressed
The pressure adjustable of wheel assembly (3), first inner ring for treating microstoning workpiece (1) carries out hydraulic stator, superfinishing oil by mandrel
Sprayed from mandrel.
3. a kind of comminution method of three-section wave raceway according to claim 2, it is characterised in that：Compress wheel assembly
(3) eccentric setting between two pinch rollers (3-1), two pinch rollers (3-1) is included, the spacing of two pinch rollers (3-1) is according to workpiece
Size is adjusted.
4. a kind of comminution method of three-section wave raceway according to claim 1 or 3, it is characterised in that：In step 5
Swing unit (4) be straight line swing unit, straight line swing unit driven by servomotor, and amplitude is produced by an eccentric stiffener,
Adjustable amplitude, the straight line swing unit is arranged on servo slide table, and the straight line swing unit is carried out above and below vertical direction
It is movable in mobile and horizontal direction.
5. a kind of comminution method of three-section wave raceway according to claim 4, it is characterised in that：Oilstone (8) is height
Intensity CBN oilstones.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452187.8A CN105856055B (en) | 2016-06-21 | 2016-06-21 | A kind of comminution method of three-section wave raceway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610452187.8A CN105856055B (en) | 2016-06-21 | 2016-06-21 | A kind of comminution method of three-section wave raceway |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105856055A CN105856055A (en) | 2016-08-17 |
| CN105856055B true CN105856055B (en) | 2017-10-24 |
Family
ID=56651199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610452187.8A Active CN105856055B (en) | 2016-06-21 | 2016-06-21 | A kind of comminution method of three-section wave raceway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105856055B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107378746A (en) * | 2017-08-14 | 2017-11-24 | 瓦房店远东轴承股份有限公司 | Raceway Superfinishing machine in a kind of self-aligning thrust roller bearing |
| CN109176303B (en) * | 2018-11-01 | 2023-11-03 | 哈尔滨轴承集团有限公司 | Bearing ring water remover |
| CN109986305A (en) * | 2019-03-21 | 2019-07-09 | 中国航发哈尔滨轴承有限公司 | A kind of prestress forming method for grinding of non-circular " three-section wave shape " raceway of thin-walled |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231301A (en) * | 2013-04-12 | 2013-08-07 | 无锡机床股份有限公司 | Raceway parameterization orderly superfinishing method for large and medium ring of rolling bearing |
| CN104149018A (en) * | 2014-07-21 | 2014-11-19 | 无锡市蓝马机械制造有限公司 | Outer-ring superfinishing machine for four-point contact bearings |
| CN104511827A (en) * | 2013-09-29 | 2015-04-15 | 黄彬 | Bearing inner ring raceway spiral super-finishing method |
| CN105364639A (en) * | 2015-11-13 | 2016-03-02 | 中航工业哈尔滨轴承有限公司 | Grinding and finish lapping process for bearing ring whole peach type channel |
| CN105458929A (en) * | 2016-01-17 | 2016-04-06 | 浙江陀曼智造科技有限公司 | Superfinishing machine control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4078523B2 (en) * | 2001-02-27 | 2008-04-23 | 日本精工株式会社 | Super finishing method and apparatus for tapered roller bearing |
-
2016
- 2016-06-21 CN CN201610452187.8A patent/CN105856055B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231301A (en) * | 2013-04-12 | 2013-08-07 | 无锡机床股份有限公司 | Raceway parameterization orderly superfinishing method for large and medium ring of rolling bearing |
| CN104511827A (en) * | 2013-09-29 | 2015-04-15 | 黄彬 | Bearing inner ring raceway spiral super-finishing method |
| CN104149018A (en) * | 2014-07-21 | 2014-11-19 | 无锡市蓝马机械制造有限公司 | Outer-ring superfinishing machine for four-point contact bearings |
| CN105364639A (en) * | 2015-11-13 | 2016-03-02 | 中航工业哈尔滨轴承有限公司 | Grinding and finish lapping process for bearing ring whole peach type channel |
| CN105458929A (en) * | 2016-01-17 | 2016-04-06 | 浙江陀曼智造科技有限公司 | Superfinishing machine control system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105856055A (en) | 2016-08-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107584394A (en) | A kind of quick sanding apparatus of machining sheet material | |
| CN105856055B (en) | A kind of comminution method of three-section wave raceway | |
| CN109531348A (en) | A kind of plate grinding device of machining | |
| CN201115928Y (en) | Ultra-smooth grinding composite technological equipment for processing excircle | |
| CN104385094B (en) | Timber processing machine | |
| CN106425729A (en) | Conveniently used grinder | |
| CN109648427A (en) | A kind of change sphere diameter automatic screening ball crusher | |
| CN103481195A (en) | Multi-shaft driving device for single-face grinding polisher | |
| CN106695530A (en) | Bearing roller spherical surface superfinishing mechanism | |
| CN208811752U (en) | A kind of deburring apparatus of high-speed rail brake disc | |
| CN104404846B (en) | Rail grinding machine | |
| CN116749020B (en) | Full-automatic numerical control wheel hub bearing inner flange raceway grinding machine | |
| CN207077276U (en) | A kind of five axle metal sanders | |
| CN208744480U (en) | A kind of magnesium-alloy tube bar outer surface arrangement for grinding | |
| CN211589718U (en) | Frock clamp is used in metal forming and polishes | |
| CN203542259U (en) | Forging bar outer circle sharpening machine | |
| CN108908035A (en) | A kind of magnesium-alloy tube bar outer surface arrangement for grinding | |
| CN105458929B (en) | A kind of Superfinishing machine control system | |
| CN207480328U (en) | A kind of dual rotary deburring equipment | |
| CN107214569A (en) | The method of bearing outer ring double channel processing | |
| CN208146713U (en) | A kind of high precision belt wheel spinning apparatus | |
| CN206811663U (en) | A kind of polygon edge polisher of glass | |
| CN104175209B (en) | For the microstoning technique and equipment of the engine valve stem of engine | |
| CN106514464A (en) | Polishing machine | |
| CN202271267U (en) | Pinch roller group of chamfer deburring machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |