CN110330219A - Heavy caliber quartz glass fluorescent tube polishing machine - Google Patents
Heavy caliber quartz glass fluorescent tube polishing machine Download PDFInfo
- Publication number
- CN110330219A CN110330219A CN201910695607.9A CN201910695607A CN110330219A CN 110330219 A CN110330219 A CN 110330219A CN 201910695607 A CN201910695607 A CN 201910695607A CN 110330219 A CN110330219 A CN 110330219A
- Authority
- CN
- China
- Prior art keywords
- quartz glass
- heavy caliber
- polishing
- fluorescent tube
- caliber quartz
- 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.)
- Pending
Links
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 76
- 238000005498 polishing Methods 0.000 title claims abstract description 67
- 239000007921 spray Substances 0.000 claims abstract description 31
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000011521 glass Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 239000004575 stone Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002737 fuel gas Substances 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003708 ampul Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000012777 electrically insulating material Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B29/00—Reheating glass products for softening or fusing their surfaces; Fire-polishing; Fusing of margins
Abstract
The present invention is a kind of heavy caliber quartz glass fluorescent tube polishing machine, it is related to quartz glass tube production field, including workbench, is equipped with rotating seat on the table, it is fixed with vertically arranged tube face on rotating seat, is equipped with the first power mechanism connection of driving rotating seat rotation in the lower section of workbench；It is equipped with through-hole at the center of tube face, the mandril that the heavy caliber quartz glass fluorescent tube after polishing and tube face are detached from is equipped in through-hole, the second power mechanism of driving mandril or more stretching motion is equipped with below workbench；It is equipped with column in the side of workbench, polishing flame spray head is equipped on column, the polishing flame spray head laterally and towards tube face central axis is arranged, the third power mechanism to pump on column equipped with driving polishing flame spray head.The advantages of present invention has structure simple, and easy to operate, quality of finish is good, while going de-stress, extends heavy caliber quartz glass lamp tube service life.
Description
Technical field
The present invention relates to quartz glass tube production field, especially a kind of heavy caliber quartz glass fluorescent tube polishing machine.
Background technique
Quartz ampoule is the special industrial technical glass manufactured with silica, is a kind of very good basic material.Its
With a series of excellent physics, chemical property, such as: 1. high temperature resistants, short time maximum operation (service) temperature is up to 1450 DEG C；2. corrosion resistant
Erosion, in addition to hydrofluoric acid, quartz glass is hardly chemically reacted with other acids, and chemistry especially at high temperature is steady
It is qualitative, it is that other any engineering material are all incomparable；3. thermal stability is good, the thermal expansion coefficient of quartz glass is minimum, energy
Bear violent temperature change；4. light transmission is good, quartz glass has preferable light transmission in entire spectral band, it is seen that
Light transmission rate is 93% or more；5. electrical insulation capability is good, it is pole that the resistance value of quartz glass, which is equivalent to 10,000 times of simple glass,
Good electrically insulating material has good electrical property at high temperature.
Quartz glass is due to being therefore widely used in electric light source domain, usually wanting with above-mentioned excellent physicochemical property
Ask quartz glass plate will be by processes such as grinding, polishings to reach higher finish.For heavy caliber quartz glass fluorescent tube into
The equipment of row polishing, most domestic manufacturer continue to use traditional mechanical polishing processing technology, and abrasion loss is larger, surface accuracy
It not can guarantee, in later period use process, surface quality becomes worse and worse；Through the finished quartz glass of this technique, outside
It goes sightseeing bright but there is no obvious mirror effect, and be not easy to guarantee workpiece size.And most domestic burnishing device can not eliminate stone
Remaining stress in English glass lamp, causes the mechanical strength of quartz burner still lower, may hair during following process
Raw booster problem.
Summary of the invention
Technical problem to be solved by the present invention lies in providing in view of the deficiencies of the prior art, a kind of structure is simple, operation letter
Just, quality of finish is good, while going de-stress, extends the heavy caliber quartz glass fluorescent tube polishing of heavy caliber quartz glass lamp tube service life
Machine.
The technical problem to be solved by the present invention is to what is be achieved through the following technical solutions, the present invention is a kind of heavy caliber
Quartz glass lamp vessel polishing machine, its main feature is that, including workbench, it is equipped on the table for driving polished heavy caliber stone
The rotating seat of English glass lamp rotation is fixed on rotating seat vertically arranged with polished heavy caliber quartz glass fluorescent tube
Internal wall of pipe orifice cooperation to fix the tube face of heavy caliber quartz glass fluorescent tube, be equipped with driving rotating seat in the lower section of workbench and turn
Dynamic the first power mechanism connection；
It is equipped with through-hole at the center of tube face, is equipped in through-hole and takes off the heavy caliber quartz glass fluorescent tube after polishing with tube face
From mandril, the second power mechanism of driving mandril or more stretching motion is equipped with below the workbench；
Be equipped with column in the side of workbench, be equipped with polishing flame spray head on column, polishing flame spray head transverse direction and
It is arranged towards tube face central axis, the third engine to pump on column equipped with driving polishing flame spray head
Structure.
The technical problems to be solved by the invention can also further realize by the following technical programs, above-described
Rotating seat described in heavy caliber quartz glass fluorescent tube polishing machine is mounted in vertically arranged shaft by bearing, first power
Mechanism includes the gear for being located at shaft lower part for drive shaft rotation, is equipped with the electronic of sliding tooth wheel rotation in the lower section of rack
Machine I.
The technical problems to be solved by the invention can also further realize by the following technical programs, above-described
Second power mechanism described in heavy caliber quartz glass fluorescent tube polishing machine is the cylinder for driving mandril or more stretching motion, the top
The lower end of bar and the piston rod end of cylinder connect.
The technical problems to be solved by the invention can also further realize by the following technical programs, above-described
Column described in heavy caliber quartz glass fluorescent tube polishing machine is equipped with vertically arranged sliding slot, and sliding slot is provided with along above and below sliding slot
The sliding block of sliding, the polishing flame spray head are mounted on sliding block by clamping piece clamping and are pumped with sliding block；
The third power mechanism includes connecting with sliding block and with the chain that movable slider moves up and down, the upper and lower part dress of the column
There are the drive sprocket and driven sprocket with chain interoperation, the company of motor II of the drive sprocket and driving drive sprocket rotation
It connects.
The technical problems to be solved by the invention can also further realize by the following technical programs, above-described
The igniter with polishing flame spray head cooperation is equipped in heavy caliber quartz glass fluorescent tube polishing machine below polishing flame spray head.
The technical problems to be solved by the invention can also further realize by the following technical programs, above-described
In the upper and lower part of the sliding slot of column equipped with limitation sliding block up and down motion stroke in heavy caliber quartz glass fluorescent tube polishing machine
Upper limit position block and lower position block are equipped with travel switch on the upper limit position block and lower position block.
Compared with prior art, the beneficial effects of the present invention are:
It is polished by setting polishing flame spray head to polished heavy caliber quartz glass fluorescent tube, and quartz glass lamp vessel
It is rotated on the table by rotating seat, polishing flame spray head low speed can move back and forth up and down, this ensure that heavy caliber stone
The uniformity of English glass lamp all surface polishing, comparison tradition machinery polishing, does not wear the outer of heavy caliber quartz glass fluorescent tube
Surface and it can guarantee quality of finish；The residual stress in heavy caliber quartz glass fluorescent tube can be eliminated simultaneously, improve heavy caliber stone
The intensity of English glass lamp extends fluorescent tube service life, ensure that peace of the heavy caliber quartz glass fluorescent tube in following process
Quan Xing；By replacing various sizes of tube face, it can satisfy the polishing needs of the quartz glass lamp vessel of different bores；Pass through tune
Position of the upper and lower limits block in sliding slot is saved, the stroke that adjustable sliding block moves up and down meets the quartz glass of different length
The polishing of fluorescent tube needs, applied widely, easy to operate, greatly reduces the quartz glass lamp vessel of different bores, different length
The production cost of polishing, improves work efficiency.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention.
In figure: 1. workbench, 2. rotating seats, 3. tube faces, 4. mandrils, 5. columns, 6. polishing flame spray heads, 7. shafts,
8. motor I, 9. cylinders, 10. sliding slots, 11. sliding blocks, 12. clamping pieces, 13. chains, 14. drive sprockets, 15. driven sprockets,
16. motor II, 17. igniters, 18. upper limit position blocks, 19. lower position blocks, 20. travel switches.
Specific embodiment
The specific technical solution of the present invention described further below, in order to which those skilled in the art is further understood that
The present invention, without constituting the limitation to its right.
[embodiment 1]
Referring to Fig.1, a kind of heavy caliber quartz glass fluorescent tube polishing machine, including workbench 1 are equipped on workbench 1 for driving
The rotating seat 2 of polished heavy caliber quartz glass tube rotation, be fixed on rotating seat 2 it is vertically arranged with it is polished
The cooperation of heavy caliber quartz glass fluorescent tube internal wall of pipe orifice to fix the tube face 3 of heavy caliber quartz glass fluorescent tube, set in rotating seat 2
There is internal thread hole, 3 lower end of tube face is equipped with the external screw thread linkage section cooperated with the internal thread hole of rotating seat 2, by 3 lower end of tube face
The connection of tube face 3 and rotating seat 2, rotating seat 2 and tube face are realized in the internal thread hole of external screw thread linkage section precession rotating seat 2
Easy to disassemble and replacement various outer diameter tube face 3 is connected through a screw thread between 3, for assembling the quartz glass lamp of different bores
Pipe meets the polishing needs of the quartz glass lamp vessel of different model, and 3 lower part of tube face is set as cylindrical, with polished big mouth
The coaxial arrangement of diameter quartz glass lamp vessel is equipped with the first power mechanism connection that driving rotating seat 2 rotates in the lower section of workbench 1,
Polished heavy caliber quartz glass fluorescent tube is set on tube face 3 downward with nozzle, is rotated with the rotation of rotating seat 2；Institute
Rotating seat 2 is stated through bearing in vertically arranged shaft 7, first power mechanism includes being located at 7 lower part of shaft to be used for
The gear that drive shaft 7 rotates is equipped with the motor I 8 of sliding tooth wheel rotation in the lower section of rack, and motor I 8 is pacified by bracket
On workbench 1.
It is equipped with through-hole at the center of tube face 3, heavy caliber quartz glass fluorescent tube and lamp after polishing are equipped in through-hole
The mandril 4 that tube socket 3 is detached from is equipped with the second power mechanism of driving about 4 stretching motion of mandril below workbench 1；Described
Two power mechanisms are the cylinder 9 for driving about 4 stretching motion of mandril, and the lower end of the mandril 4 and the piston rod end of cylinder 9 connect
It connecing, after heavy caliber quartz glass fluorescent tube is completed to polish, starts cylinder 9, the piston rod of cylinder 9 stretches out, and push mandril 4 to rise,
4 top of mandril contacts with heavy caliber quartz glass fluorescent tube upper inside wall and pushes its rising, and quartz glass lamp vessel is made to be detached from fluorescent tube
Seat 3 removes heavy caliber quartz glass fluorescent tube and completes polishing.
The side of workbench 1 be equipped with column 5, on column 5 be equipped with polishing flame spray head 6, polishing flame spray head 6 with for
It polishes flame spray head 6 and the air supply system connection of fuel gas is provided, fuel gas air supply system is equipped with control valve, the polishing fire
Flame spray head 6 laterally and towards 3 central axis of tube face is arranged, and is equipped with below polishing flame spray head 6 and polishing flame spray head 6
The igniter 17 of cooperation.When work, the control valve on igniter 17 and fuel gas air supply system, polishing flame spray are opened
First 6 light a fire successfully, and flame is directed at polished heavy caliber quartz glass fluorescent tube and is polished；Equipped with driving polishing on column 5
The third power mechanism that flame spray head 6 pumps；The column 5 is equipped with vertically arranged sliding slot 10, in sliding slot 10
Equipped with the sliding block 11 slided up and down along sliding slot 10, the polishing flame spray head 6 is mounted on sliding block 11 by the clamping of clamping piece 12
It above and with sliding block 11 pumps, the clamping piece 12 of the present embodiment is using the clip being fixed on sliding block 11, by clip
The spray boom connecting with polishing flame spray head 6 is hold, realizes that polishing flame spray head 6 is moved synchronously with sliding block 11；The third is dynamic
Force mechanisms include connect with sliding block 11 and with movable slider 11 move up and down chain 13, the upper and lower part of the column 5 is equipped with
The drive sprocket 14 and driven sprocket 15 cooperated with chain 13, the drive sprocket 14 rotate electronic with driving drive sprocket 14
Machine II 16 connects, and motor II 16, which is fixed by the bracket, is mounted on 1 lower section of workbench.
The upper limit position block 18 of limitation 11 up and down motion stroke of sliding block is housed under in the upper and lower part of the sliding slot 10 of column 5
Limited block 19 is equipped with travel switch 20 on the upper limit position block 18 and lower position block 19.It can be according to different polished big mouths
The length of diameter quartz glass lamp vessel adjusts the position of upper limit position block 18 and lower position block 19, is moved up and down with this adjusting slider 11
Stroke, travel switch 20 access motor control circuit in, realize when sliding block 11 rising touch upper limit position block 18 or under
Row triggers travel switch 20 respectively when touching lower position block 19, change control circuit, controls the positive and negative rotation of motor, realizes and slides
Block 11 drives polishing flame spray head 6 to pump, and carries out to the polished heavy caliber quartz glass fluorescent tube being rotating
Polishing, realization uniformly polish heavy caliber quartz glass lamp tube outer surface, polish compared to tradition machinery, to heavy caliber quartz
The outer surface of glass lamp generates attrition, ensure that the quality of polishing, while can satisfy the quartz glass of different length
The polishing of fluorescent tube needs, and when replacing various sizes of tube face 3, can satisfy the throwing of the quartz glass lamp vessel of different bores
Light, it is applied widely, substantially increase the working efficiency of quartz glass lamp vessel polishing.
The heavy caliber quartz glass fluorescent tube polishing machine can also reach removal while polishing to heavy caliber quartz glass fluorescent tube
Residual stress in heavy caliber quartz glass fluorescent tube improves the explosion-proof performance of heavy caliber quartz glass fluorescent tube, ensure that heavy caliber
Safety of the quartz glass lamp vessel in following process, extends the service life of heavy caliber quartz glass fluorescent tube.
Claims (6)
1. a kind of heavy caliber quartz glass fluorescent tube polishing machine, it is characterised in that: including workbench, be equipped on the table for driving
Move the rotating seat of polished heavy caliber quartz glass tube rotation, be fixed on rotating seat it is vertically arranged with it is polished
The cooperation of heavy caliber quartz glass fluorescent tube internal wall of pipe orifice to fix the tube face of heavy caliber quartz glass fluorescent tube, under workbench
Side is equipped with the first power mechanism connection of driving rotating seat rotation；
It is equipped with through-hole at the center of tube face, is equipped in through-hole and takes off the heavy caliber quartz glass fluorescent tube after polishing with tube face
From mandril, the second power mechanism of driving mandril or more stretching motion is equipped with below the workbench；
Be equipped with column in the side of workbench, be equipped with polishing flame spray head on column, polishing flame spray head transverse direction and
It is arranged towards tube face central axis, the third engine to pump on column equipped with driving polishing flame spray head
Structure.
2. heavy caliber quartz glass fluorescent tube polishing machine according to claim 1, it is characterised in that: the rotating seat passes through axis
It is housed in vertically arranged shaft, first power mechanism includes the tooth for being located at shaft lower part for drive shaft rotation
Wheel is equipped with the motor I of sliding tooth wheel rotation in the lower section of rack.
3. heavy caliber quartz glass fluorescent tube polishing machine according to claim 1, it is characterised in that: second power mechanism
For the cylinder of stretching motion above and below driving mandril, the lower end of the mandril and the piston rod end of cylinder are connected.
4. heavy caliber quartz glass fluorescent tube polishing machine according to claim 1, it is characterised in that: the column is equipped with perpendicular
To the sliding slot of setting, sliding slot is provided with the sliding block slided up and down along sliding slot, and the polishing flame spray head is clamped by clamping piece
It is mounted on sliding block and pumps with sliding block；The third power mechanism includes connecting with sliding block and on movable slider
The chain of lower movement, the upper and lower part of the column is equipped with the drive sprocket and driven sprocket with chain interoperation, the active
Sprocket wheel is connect with the motor II of driving drive sprocket rotation.
5. heavy caliber quartz glass fluorescent tube polishing machine according to claim 1, it is characterised in that: in the case where polishing flame spray head
Side is equipped with the igniter with polishing flame spray head cooperation.
6. heavy caliber quartz glass fluorescent tube polishing machine according to claim 4, it is characterised in that: column sliding slot it is upper
Portion and lower part upper limit position block and lower position block equipped with limitation sliding block up and down motion stroke, on the upper limit position block and lower position block
Equipped with travel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695607.9A CN110330219A (en) | 2019-07-30 | 2019-07-30 | Heavy caliber quartz glass fluorescent tube polishing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910695607.9A CN110330219A (en) | 2019-07-30 | 2019-07-30 | Heavy caliber quartz glass fluorescent tube polishing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110330219A true CN110330219A (en) | 2019-10-15 |
Family
ID=68148000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910695607.9A Pending CN110330219A (en) | 2019-07-30 | 2019-07-30 | Heavy caliber quartz glass fluorescent tube polishing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110330219A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333310A (en) * | 2020-03-06 | 2020-06-26 | 和县晶晶玻璃制品有限公司 | Flame polishing device and process for producing temperable ultra-white glass |
| CN112456773A (en) * | 2020-12-22 | 2021-03-09 | 苏州博莱特石英有限公司 | Tubular quartz product processing equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6221724A (en) * | 1985-07-19 | 1987-01-30 | Furukawa Electric Co Ltd:The | Polishing of inner surface of glass pipe |
| JPH07109141A (en) * | 1992-11-19 | 1995-04-25 | Shinetsu Quartz Prod Co Ltd | Large-sized quartz glass pipe, optical fiber preform and their preparation |
| CN1366511A (en) * | 2000-04-14 | 2002-08-28 | 赫罗伊斯石英玻璃股份有限两合公司 | Method and device for producing quartz glass body |
| JP2006255857A (en) * | 2005-03-18 | 2006-09-28 | Toshiba Ceramics Co Ltd | Inner surface polishing machine for glass tube and machining method using it |
| CN2876085Y (en) * | 2005-11-11 | 2007-03-07 | 濮晓明 | Destress device of quartz glass pipe |
| CN210560079U (en) * | 2019-07-30 | 2020-05-19 | 连云港睿晶石英材料有限公司 | Large-diameter quartz glass lamp tube polishing machine |
-
2019
- 2019-07-30 CN CN201910695607.9A patent/CN110330219A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6221724A (en) * | 1985-07-19 | 1987-01-30 | Furukawa Electric Co Ltd:The | Polishing of inner surface of glass pipe |
| JPH07109141A (en) * | 1992-11-19 | 1995-04-25 | Shinetsu Quartz Prod Co Ltd | Large-sized quartz glass pipe, optical fiber preform and their preparation |
| CN1366511A (en) * | 2000-04-14 | 2002-08-28 | 赫罗伊斯石英玻璃股份有限两合公司 | Method and device for producing quartz glass body |
| JP2006255857A (en) * | 2005-03-18 | 2006-09-28 | Toshiba Ceramics Co Ltd | Inner surface polishing machine for glass tube and machining method using it |
| CN2876085Y (en) * | 2005-11-11 | 2007-03-07 | 濮晓明 | Destress device of quartz glass pipe |
| CN210560079U (en) * | 2019-07-30 | 2020-05-19 | 连云港睿晶石英材料有限公司 | Large-diameter quartz glass lamp tube polishing machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111333310A (en) * | 2020-03-06 | 2020-06-26 | 和县晶晶玻璃制品有限公司 | Flame polishing device and process for producing temperable ultra-white glass |
| CN112456773A (en) * | 2020-12-22 | 2021-03-09 | 苏州博莱特石英有限公司 | Tubular quartz product processing equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110330219A (en) | Heavy caliber quartz glass fluorescent tube polishing machine | |
| CN201855856U (en) | Crease resistant and bending machining device for thin metal pipe | |
| CN106064342A (en) | One carries high efficiency multistation letter out machine | |
| CN111136772A (en) | Automatic glaze dipping machine for ceramic cup | |
| CN115650555B (en) | Defoaming and cooling device in float glass forming process | |
| CN210560079U (en) | Large-diameter quartz glass lamp tube polishing machine | |
| CN215748320U (en) | Ceramic half-ball valve core processing device | |
| CN106695568A (en) | Optical fiber preform rod polishing solution circulating system | |
| CN116276354A (en) | Polishing device | |
| CN205342833U (en) | Glass semi -manufactured goods grinding device | |
| CN212601171U (en) | Flexible material distributing mechanism for grinding pin | |
| CN114102416A (en) | Automatic clamping, grinding and polishing device for metal pipes | |
| CN209491634U (en) | A kind of rod-shaped components grinding and polishing tooling | |
| CN102248480B (en) | Grinding head mechanism used for polishing blisk | |
| CN219426423U (en) | Fine grinding device for lens grinding | |
| CN112792709A (en) | Die arc-shaped groove polishing device | |
| CN219152417U (en) | Rough grinding machine for processing glass lenses | |
| CN220533869U (en) | Numerical control punch shaft sleeve inner circle polishing device | |
| CN220261376U (en) | Ceramic artwork glazing device | |
| CN206374362U (en) | A kind of location adjusting device of multicolor group printing machine | |
| CN204523889U (en) | A kind of fully-automatic metal bending machine material jacking mechanism | |
| JP2003260643A (en) | Grinding method of end face of coil spring | |
| CN213034221U (en) | High-precision cylindrical grinding device for crankshaft | |
| CN115213787B (en) | Polishing device and polishing method for oxide layer after heat treatment of metal workpiece | |
| CN220094275U (en) | Sand blasting machine for aluminum profile surface treatment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20191015 |