CN108000309A - A kind of high-end grinding apparatus of improved integral - Google Patents
A kind of high-end grinding apparatus of improved integral Download PDFInfo
- Publication number
- CN108000309A CN108000309A CN201710817936.7A CN201710817936A CN108000309A CN 108000309 A CN108000309 A CN 108000309A CN 201710817936 A CN201710817936 A CN 201710817936A CN 108000309 A CN108000309 A CN 108000309A
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- CN
- China
- Prior art keywords
- revolving part
- fixedly mounted
- rotary sleeve
- slide slot
- stent
- 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.)
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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
- B24B27/0076—Other grinding machines or devices grinding machines comprising two or more grinding tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a kind of high-end grinding apparatus of improved integral, for carrying out grinding process to inboard wall of cylinder block, including the extended stent of left and right directions, it is fixedly mounted on the fixed station of stent left upper end, polishing portion and adjustment part, port is provided with fixed station towards right and upper and lower extended first slide slot, skid can be glidingly installed up and down in the first slide slot, pedestal upper end is provided with port upward and the extended sliding laterally dynamic groove in left and right, the first screw rod is rotatably mounted between second slide slot left hand end wall, first screw rod left end is connected with the first driving machine being fixedly mounted in the bracket；Adjustment part includes the sliding seat for sliding in the second slide slot and being connected with the first screw rod, is provided with the extended arc groove in left and right in sliding seat, the clamping ring for stationary housing is additionally provided with sliding seat.
Description
Technical field
The present invention relates to grinding workpieces field, and in particular to a kind of high-end grinding apparatus of improved integral.
Background technology
With the continuous upgrading of high-end preparation industry, some cylinder shape workpiece need to beat its inner wall in processing
Grinding and polishing light, so as to increase smoothness and precision.The tradition of polishing in to(for) cylinder shape workpiece inner wall is typically all using machinery
Sanding apparatus, but this mechanical device is typically all to drive main axis by motor, and direction of polishing is typically same
A direction, therefore, when running into obstinate acne, single rotation direction cannot be fully erased, its effect unobvious of polishing, if carried
High polishing dynamics easily damages inboard wall of cylinder block, therefore, traditional mechanical grinding device there are it is larger the drawbacks of.
The content of the invention
It is an object of the invention to provide a kind of high-end grinding apparatus of improved integral, the upper of the prior art can be overcome
State defect.
According to the present invention, the high-end grinding apparatus of a kind of improved integral of apparatus of the present invention, for inboard wall of cylinder block into
Row grinding process, including the extended stent of left and right directions, the fixed station for being fixedly mounted on the stent left upper end, polishing portion and
Adjustment part, port is provided with the fixed station towards right and upper and lower extended first slide slot, in first slide slot can on
Under skid is glidingly installed, the pedestal upper end is provided with port upward and extended second slide slot in left and right, described
The first screw rod is rotatably mounted between two slide slot left hand end walls, the first screw rod left end is with being fixedly mounted on institute
The first driving machine connection in stent is stated, the stent inner bottom wall is equipped with counterweight tank, counterweight is installed with the counterweight tank
Block；The adjustment part includes sliding in second slide slot and is slided with what first screw rod was connected
, the extended arc groove in left and right is provided with the sliding seat, is additionally provided with the sliding seat for fixing the cylinder body
Clamping ring；The polishing portion includes jackshaft, casing, the first revolving part, the second revolving part, is engaged with first revolving part
The first polishing set and the second polishing for coordinating with second revolving part cover, be provided with first turn in first revolving part
Groove, is provided with internal tooth form circle on the first turn trough inner wall, mounting blocks is provided with first turn trough, are set in the mounting blocks
The second turn trough is equipped with, four are provided with the second turn trough outer ring and leads to groove, it is described to lead in groove by shaft rotatably
The toothed wheel being connected with the internal tooth form circle is installed, described sleeve pipe left end is fixedly mounted on the skid right end, institute
State the first revolving part described in casing right end break-through and be fixedly connected with the mounting blocks, interstitial hole is provided with described sleeve pipe, institute
State jackshaft to be rotatably installed in the interstitial hole, the central rotating shaft left end is with being fixedly mounted in the skid
Second driving machine connects, and mounting blocks and the first revolving part described in the jackshaft right end break-through simultaneously extend to the right, second rotation
Turn part and be fixedly mounted on the jackshaft right end, be also equipped with second turn trough with the toothed wheel be connected and with institute
The toothed disc that jackshaft is fixedly connected is stated, irradiation unit is additionally provided with the stent, the irradiation unit includes top arm and photograph
Shot-light.
Further technical solution, the first polishing set include the first rotary sleeve and are fixedly mounted on first rotation
The first grinding wheel on pivoted housing outer end face, the second polishing set include the second rotary sleeve and are fixedly mounted on second rotation
Left and right is respectively arranged with the second grinding wheel on pivoted housing outer end face, first rotary sleeve and the second rotary sleeve inner wall to prolong
Be respectively arranged with long the first spline and the second spline, first revolving part and the second revolving part outer end face with it is described
Matched first spline of first spline and with matched second spline of second spline.
Further technical solution, the first revolving part outer end face left end are provided with the first bulge loop block, first rotation
Pivoted housing left end be provided with matched first projecting ring section of the first bulge loop block, be provided with the first projecting ring section right end wall
First threaded hole, is additionally provided with the first counterbore in the first bulge loop block, is provided with first counterbore and first spiral shell
The first spiral nail that trepanning coordinates, so as to which first rotary sleeve and first revolving part are mutually fixed.
Further technical solution, the second revolving part right end are provided with the second projecting ring section, and second rotary sleeve is right
End be provided with the matched second bulge loop block of second projecting ring section, be provided with the second spiral shell in the second projecting ring section left end wall
Trepanning, is additionally provided with the second counterbore in the second bulge loop block, is provided with second counterbore and matches somebody with somebody with second threaded hole
The second spiral nail closed, so as to which second rotary sleeve and second revolving part are mutually fixed.
Further technical solution, the outside diameter of first revolving part are more than the outside diameter of second revolving part, therefore described
First rotary sleeve can be installed on first revolving part via second revolving part.
Further technical solution, first rotary sleeve is identical with the second rotary sleeve outside diameter, and described first dozen
Emery wheel and the second grinding wheel thickness are identical.
Further technical solution, is connected in the skid and is provided with the second screw rod, second screw rod
Lower end is rotatably installed in described first and slides in groove bottom wall, upper end and is fixedly mounted in the first slide slot roof the
Three driving machines connect, and are also slided in the skid and are provided with guide rod, the guide rod upper and lower ends are fixedly mounted on described first
Slide slot is up and down in end wall.
Further technical solution, the top arm are fixedly installed on stent right hand top, extend to the right at the top of the top arm
Installing plate is provided with, the irradiation light is fixedly installed on the installing plate bottom.
The beneficial effects of the invention are as follows：
In apparatus of the present invention, since the big I of the described first polishing set and the second polishing set is selected according to the size of cylinder diameter
Select, and the height and position of the jackshaft can be adjusted by the 3rd driving machine, therefore, be suitable for the cylinder body of different inner diameters；
Since under the action of toothed wheel, first grinding wheel and the second grinding wheel can rotated to described in a reverse direction
Inboard wall of cylinder block carries out grinding process, since first grinding wheel and the second grinding wheel are turned on the contrary, therefore, being greatly improved and beating
Grind effect；
Since the first driving machine can drive the cylinder body gradually to slide to the left, first grinding wheel and the second grinding wheel
The inboard wall of cylinder block can thoroughly be polished.
Apparatus of the present invention are simple in structure, easy to operate, stable.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of inventive embodiments or technical solution of the prior art
Attached drawing is briefly described needed in technology description, it should be apparent that, drawings in the following description are only to invent
Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the overall structure diagram of the high-end grinding apparatus of a modification of the present invention type integral type.
Fig. 2 is the enlarged structure schematic diagram in Fig. 1 polishings portion.
Fig. 3 is direction of arrow schematic diagram in Fig. 1.
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
This specification（Including any accessory claim, summary and attached drawing）Disclosed in any feature, except non-specifically chatting
State, can be replaced by other alternative features that are equivalent or have similar purpose.I.e., unless specifically stated, each feature
It is an example in a series of equivalent or similar characteristics.
As shown in Figs. 1-3, the high-end grinding apparatus of a modification of the present invention type integral type, for being carried out to 18 inner wall of cylinder body
Grinding process, including the extended stent 10 of left and right directions, the fixed station 22 for being fixedly mounted on 10 left upper end of stent, polishing portion
19 and adjustment part, port is provided with towards right and upper and lower extended first slide slot 220 in the fixed station 22, and described first slides
Skid 221 can be glidingly installed up and down, 10 upper end of stent is provided with port upward and left and right is extended in row groove 220
Second slide slot 12, is rotatably mounted with the first screw rod 13 between 12 left hand end wall of the second slide slot, and described first
13 left end of screw rod is connected with the first driving machine 11 being fixedly mounted in the stent 10, and 10 inner bottom wall of stent, which is equipped with, matches somebody with somebody
Baking soda, is installed with clump weight 101 in the counterweight tank, and the clump weight 101 is increasing when the stent 10 supports
Stability；The adjustment part includes sliding in second slide slot 12 and being connected with first screw rod 13
Sliding seat 14, be provided with the extended arc groove 15 in left and right in the sliding seat 14, be additionally provided with and be used in the sliding seat 14
The clamping ring 17 of the fixed cylinder body 18；The polishing portion 19 includes jackshaft 24, casing 20, the rotation of the first revolving part 16, second
Turn part 35, polish with first revolving part 16 matched first polishing set and with second revolving part 35 coordinates second
Cover, be provided with the first turn trough 27 in first revolving part 16, internal tooth form circle 28, institute are provided with 27 inner wall of the first turn trough
State and mounting blocks 26 are installed in first turn trough 27, the second turn trough 251, second turn trough 251 are provided with the mounting blocks 26
Four are provided with outer ring and leads to groove, it is described lead to be rotatably mounted with by shaft 30 in groove match somebody with somebody with the internal tooth form circle 28
The toothed wheel 29 of connection is closed, 20 left end of described sleeve pipe is fixedly mounted on 221 right end of skid, 20 right end break-through of described sleeve pipe
First revolving part 16 is simultaneously fixedly connected with the mounting blocks 26, and interstitial hole, the jackshaft are provided with described sleeve pipe 20
24 are rotatably installed in the interstitial hole, and 24 left end of central rotating shaft is with being fixedly mounted in the skid 221
Second driving machine 23 connects, and 26 and first revolving part 16 of mounting blocks described in the 24 right end break-through of jackshaft simultaneously extends to the right, institute
State the second revolving part 35 and be fixedly mounted on 24 right end of jackshaft, be also equipped with and the tooth form in second turn trough 251
29 toothed discs 25 for being connected and being fixedly connected with the jackshaft 24 are taken turns, are additionally provided with irradiation unit in the stent 10, institute
Stating irradiation unit includes top arm 50 and irradiation light 52.
Valuably, wherein, the first polishing set includes the first rotary sleeve 32 and is fixedly mounted on first rotation
Cover the first grinding wheel 31 on 32 outer end faces, the second polishing set includes the second rotary sleeve 33 and is fixedly mounted on described the
In the second grinding wheel 34 on two rotary sleeves, 33 outer end face, first rotary sleeve 32 and 33 inner wall of the second rotary sleeve respectively
Extended first spline in left and right and the second spline are provided with, on 16 and second revolving part of the first revolving part, 35 outer end face
Be respectively arranged with the first spline matched with first spline and with matched second spline of second spline.
Valuably, wherein, the 16 outer end face left end of the first revolving part is provided with the first bulge loop block 38, first rotation
Cover 32 left ends be provided with 38 matched first projecting ring section of the first bulge loop block, set in the first projecting ring section right end wall
There is the first threaded hole, the first counterbore is additionally provided with the first bulge loop block 38, be provided with first counterbore and described
The first spiral nail 39 that one threaded hole coordinates, so as to which first rotary sleeve 32 and 16 phase of the first revolving part are fixed.
Valuably, wherein, 35 right end of the second revolving part is provided with the second projecting ring section, 33 right end of the second rotary sleeve
Be provided with the matched second bulge loop block 37 of second projecting ring section, be provided with the second spiral shell in the second projecting ring section left end wall
Trepanning, is additionally provided with the second counterbore in the second bulge loop block 37, is provided with second counterbore and second threaded hole
The second spiral nail 36 coordinated, so as to which second rotary sleeve 33 and 35 phase of the second revolving part are fixed.
Valuably, wherein, the outside diameter of first revolving part 16 is more than the outside diameter of second revolving part 35, therefore described the
One rotary sleeve 32 can be installed on first revolving part 16 via second revolving part 35.
Valuably, wherein, first rotary sleeve 32 is identical with 33 outside diameter of the second rotary sleeve, and first polishing
Wheel 31 is identical with 31 thickness of the second grinding wheel.
Valuably, wherein, it is connected in the skid 221 and second screw rod 223, second screw rod are installed
223 lower ends are rotatably installed in 220 bottom wall of the first slide slot, and upper end is with being fixedly mounted on first slide slot
The 3rd driving machine 224 connects in 220 roofs, is also slided in the skid 221 and is provided with guide rod 222, and the guide rod is about 222
Both ends are fixedly mounted on first slide slot about 220 in end wall.
Valuably, wherein, the top arm 50 is fixedly installed on 10 right hand top of stent, and the top of top arm 50 extends to the right
Installing plate 51 is provided with, the irradiation light 52 is fixedly installed on 51 bottom of installing plate；It can be increased by the irradiation light 52
Illumination brightness during present apparatus night time operation, meets night time operation demand.
In use, the cylinder body 18 is placed in the arc groove 15 in the sliding seat 14, and pass through the clamping ring
17 fix, and then choose the first polishing set to match with 18 internal diameter of cylinder body and the second polishing covers, first by described first dozen
Grinding set is slided on first revolving part 16 via second revolving part 35, and is fixed on by first spiral nail 39
On first revolving part 16, then the described second polishing set is installed on second revolving part 35, and passes through described second
Spiral nail 36 is fixed, and then drives the skid 221 to adjust lengthwise position using the 3rd driving machine 224, make it is described in
Countershaft 24 and the cylinder body 18 are coaxial, start first driving machine 11 at this time, and first driving machine 11 can drive when running
The sliding seat 14 is slided to the left, the cylinder body 18 is sleeved on first rotary sleeve 32 and second rotary sleeve 33, and
After start second driving machine 23, when second driving machine 23 is run, the jackshaft 24 can be driven to rotate, the centre
Axis 24 can drive second revolving part 35 to rotate when rotating, and can also drive the toothed disc 25 during the rotation of the jackshaft 24
Rotate, the toothed disc 25 can drive the toothed wheel 29 to rotate backward when rotating, and the toothed wheel 29 can drive the internal tooth
Shape circle 28 betides the opposite direction of the toothed disc 25 and rotates, therefore can make first revolving part 32 and second revolving part
35 rotate backward, so as to drive 31 and second grinding wheel 31 of the first grinding wheel to rotate in a reverse direction to the cylinder body
18 inner walls carry out grinding process, and since the first driving machine 11 can drive the cylinder body 18 gradually to slide to the left, described the
One grinding wheel 31 and the second grinding wheel 31 can thoroughly polish 18 inner wall of cylinder body.
The beneficial effects of the invention are as follows：In apparatus of the present invention, due to the size of the described first polishing set and the second polishing set
It can be selected according to the size of cylinder diameter, and the height and position of the jackshaft can be adjusted by the 3rd driving machine, therefore,
It is suitable for the cylinder body of different inner diameters；
Since under the action of toothed wheel, first grinding wheel and the second grinding wheel can rotated to described in a reverse direction
Inboard wall of cylinder block carries out grinding process, since first grinding wheel and the second grinding wheel are turned on the contrary, therefore, being greatly improved and beating
Grind effect；
Since the first driving machine can drive the cylinder body gradually to slide to the left, first grinding wheel and the second grinding wheel
The inboard wall of cylinder block can thoroughly be polished.
Apparatus of the present invention are simple in structure, easy to operate, stable.
The above, the embodiment only invented, but invent protection domain be not limited thereto, it is any without
The change or replacement that creative work is expected are crossed, should all be covered within the protection domain of invention.Therefore, the protection domain of invention
It should be determined by the scope of protection defined in the claims.
Claims (8)
1. a kind of high-end grinding apparatus of improved integral, for carrying out grinding process to inboard wall of cylinder block, including left and right directions prolongs
Long stent, fixed station, polishing portion and the adjustment part for being fixedly mounted on stent left upper end, it is characterised in that：Set in fixed station
Port is equipped with towards right and upper and lower extended first slide slot, skid, stent can be glidingly installed up and down in the first slide slot
Upper end is provided with port upward and the extended sliding laterally dynamic groove in left and right, is rotatably mounted between the second slide slot left hand end wall
First screw rod, the first screw rod left end are connected with the first driving machine being fixedly mounted in the bracket, and stent inner bottom wall, which is equipped with, matches somebody with somebody
Baking soda, is installed with clump weight in counterweight tank；Adjustment part include sliding in the second slide slot and with the first screw rod
The sliding seat of mating connection, is provided with the extended arc groove in left and right in sliding seat, is additionally provided with sliding seat for stationary housing
Clamping ring；Polishing portion includes jackshaft, casing, the first revolving part, the second revolving part and the first revolving part matched first
Polishing set and the second polishing coordinated with the second revolving part cover, and the first turn trough, the first turn trough inner wall are provided with the first revolving part
On be provided with internal tooth form circle, mounting blocks are installed in the first turn trough, are provided with the second turn trough in mounting blocks, on the second turn trough outer ring
It is provided with four and leads to groove, leads in groove and the toothed wheel being connected with internal tooth form circle, set are rotatably mounted with by shaft
Pipe left end is fixedly mounted on skid right end, and the first revolving part of casing right end break-through is simultaneously fixedly connected with mounting blocks, is set in casing
Be equipped with interstitial hole, jackshaft is rotatably installed in interstitial hole, central rotating shaft left end and be fixedly mounted in skid the
The connection of two driving machines, jackshaft right end break-through mounting blocks and the first revolving part simultaneously extend to the right, and the second revolving part is fixedly mounted on
Jackshaft right end, is also equipped with the second turn trough and toothed disc that toothed wheel is connected and is fixedly connected with jackshaft, stent
In be additionally provided with irradiation unit, irradiation unit includes top arm and irradiation light.
A kind of 2. high-end grinding apparatus of improved integral as claimed in claim 1, it is characterised in that：The first polishing set
Including the first rotary sleeve and the first grinding wheel being fixedly mounted on the first rotary sleeve outer end face, the second polishing set
Including the second rotary sleeve and the second grinding wheel being fixedly mounted on the second rotary sleeve outer end face, first rotary sleeve
Be respectively arranged with extended first spline in left and right and the second spline in the second rotary sleeve inner wall, first rotation
The first spline matched with first spline is respectively arranged with part and the second revolving part outer end face and with described second
Matched second spline of spline.
A kind of 3. high-end grinding apparatus of improved integral as claimed in claim 2, it is characterised in that：First revolving part
Outer end face left end is provided with the first bulge loop block, and the first rotary sleeve left end is provided with and the first bulge loop block matched
One projecting ring section, is provided with the first threaded hole in the first projecting ring section right end wall, first is additionally provided with the first bulge loop block
Counterbore, the first spiral nail coordinated with first threaded hole is provided with first counterbore.
A kind of 4. high-end grinding apparatus of improved integral as claimed in claim 2, it is characterised in that：Second revolving part
Right end is provided with the second projecting ring section, and the second rotary sleeve right end is provided with and matched second bulge loop of second projecting ring section
Block, is provided with the second threaded hole in the second projecting ring section left end wall, the second counterbore, institute is additionally provided with the second bulge loop block
State the second spiral nail for being provided with the second counterbore and coordinating with second threaded hole.
A kind of 5. high-end grinding apparatus of improved integral as claimed in claim 2, it is characterised in that：First revolving part
Outside diameter be more than second revolving part outside diameter.
A kind of 6. high-end grinding apparatus of improved integral as claimed in claim 2, it is characterised in that：First rotary sleeve
It is identical with the second rotary sleeve outside diameter, and first grinding wheel is identical with the second grinding wheel thickness.
A kind of 7. high-end grinding apparatus of improved integral as claimed in claim 1, it is characterised in that：Match somebody with somebody in the skid
Conjunction is connected and installed with the second screw rod, and the second screw rod lower end is rotatably installed in described first and slides in groove bottom wall,
Upper end is connected with being fixedly mounted on the 3rd driving machine in the first slide slot roof, is also slided to be provided with the skid and is led
Bar, the guide rod upper and lower ends are fixedly mounted on above and below first slide slot in end wall.
A kind of 8. high-end grinding apparatus of improved integral as claimed in claim 1, it is characterised in that：The top arm is fixed and set
Stent right hand top is placed in, extends to the right at the top of the top arm and is provided with installing plate, the irradiation light is fixedly installed on the peace
Loading board bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817936.7A CN108000309A (en) | 2017-09-12 | 2017-09-12 | A kind of high-end grinding apparatus of improved integral |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710817936.7A CN108000309A (en) | 2017-09-12 | 2017-09-12 | A kind of high-end grinding apparatus of improved integral |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108000309A true CN108000309A (en) | 2018-05-08 |
Family
ID=62051662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710817936.7A Pending CN108000309A (en) | 2017-09-12 | 2017-09-12 | A kind of high-end grinding apparatus of improved integral |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108000309A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224647A (en) * | 1999-01-29 | 1999-08-04 | 中国兵器工业第五五研究所 | Honing process and equipment for engine cylinder sleeve |
| JP2000271847A (en) * | 1999-03-25 | 2000-10-03 | Hoden Seimitsu Kako Kenkyusho Ltd | Grinding machining device and progressive machining device with it |
| CN102837256A (en) * | 2012-09-15 | 2012-12-26 | 吴志杰 | Bi-directional rotary grinding head of retreading machine |
| CN104400612A (en) * | 2014-12-15 | 2015-03-11 | 重庆蔡氏液压设备有限公司 | Inner hole honing equipment for master cylinder of hydraulic machine |
| CN204235351U (en) * | 2014-10-23 | 2015-04-01 | 重庆市晶之舞水晶饰品有限公司 | Crystal ashtray inner chamber lapping device |
| CN204277666U (en) * | 2014-12-14 | 2015-04-22 | 李涛涛 | A kind of sander for hydraulic prop for mine inboard wall of cylinder block of polishing |
-
2017
- 2017-09-12 CN CN201710817936.7A patent/CN108000309A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1224647A (en) * | 1999-01-29 | 1999-08-04 | 中国兵器工业第五五研究所 | Honing process and equipment for engine cylinder sleeve |
| JP2000271847A (en) * | 1999-03-25 | 2000-10-03 | Hoden Seimitsu Kako Kenkyusho Ltd | Grinding machining device and progressive machining device with it |
| CN102837256A (en) * | 2012-09-15 | 2012-12-26 | 吴志杰 | Bi-directional rotary grinding head of retreading machine |
| CN204235351U (en) * | 2014-10-23 | 2015-04-01 | 重庆市晶之舞水晶饰品有限公司 | Crystal ashtray inner chamber lapping device |
| CN204277666U (en) * | 2014-12-14 | 2015-04-22 | 李涛涛 | A kind of sander for hydraulic prop for mine inboard wall of cylinder block of polishing |
| CN104400612A (en) * | 2014-12-15 | 2015-03-11 | 重庆蔡氏液压设备有限公司 | Inner hole honing equipment for master cylinder of hydraulic machine |
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Application publication date: 20180508 |