CN106269385B - A kind of piston oiling station - Google Patents
A kind of piston oiling station Download PDFInfo
- Publication number
- CN106269385B CN106269385B CN201610962946.5A CN201610962946A CN106269385B CN 106269385 B CN106269385 B CN 106269385B CN 201610962946 A CN201610962946 A CN 201610962946A CN 106269385 B CN106269385 B CN 106269385B
- Authority
- CN
- China
- Prior art keywords
- piston
- hairbrush
- oil
- seat
- fixed mounted
- 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.)
- Expired - Fee Related
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
- B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
- B05C1/06—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length by rubbing contact, e.g. by brushes, by pads
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
- B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05C13/00—Means for manipulating or holding work, e.g. for separate articles
- B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
Landscapes
- Reciprocating Pumps (AREA)
- Coating Apparatus (AREA)
Abstract
The present invention discloses a kind of piston oiling station, including fixed mounted seat, motor, hairbrush, holding frame assembly；The bottom of the fixed mounted seat is arranged in the motor, and output shaft is connect with the fixed mounted seat；The fixed mounted seat is to place oil piston to be coated；The holding frame assembly can stick on the surface of oil piston to be coated to clamp the hairbrush, the oily end of the brush of the hairbrush.The present invention has the advantages that piston installation is stablized, secured, oiling is uniform, oiling is high-efficient.
Description
Technical field
The present invention relates to piston oiling technical field more particularly to a kind of piston oiling stations.
Background technique
Piston can be mainly divided into three piston top, piston head and piston skirt parts.The main function of piston is subject to vapour
Combustion pressure in cylinder, and this power is transmitted to crankshaft by piston pin and connecting rod.
Piston top is the component part of combustion chamber, thus different shapes is often made, and piston of gasoline engine uses flat-top at most
Or concave crown, to keep chamber structure compact, heat dissipation area is small, and manufacturing process is simple.Piston crown is piston boss or more
Part, piston crown ring installation to prevent high temperature, high-pressure gas from scurrying into crankcase, while preventing machine oil from scurrying into combustion chamber.
Piston ring groove all parts below are known as piston skirt.It is to guide piston reciprocating in the cylinder and bear side pressure that it, which is acted on,
Power.
Piston needs to carry out painting oil processing to its surface after preliminary working, to improve its surface lubrication, pre- abrasionproof
Damage.The mode of traditional oiling is mostly artificial oiling.I.e. by the hand-held hairbrush for being moistened with lubricating oil of staff to piston face
Carry out oiling.
Above-mentioned artificial oiling has the disadvantage that (1) oiling uniformity is not easily controlled；(2) working efficiency is low, not only consumes
When, and labour intensive；(3) if the lubricating oil excess that hairbrush dips in, during coating, lubricating oil is easy to be dropped in work
On the body of personnel, make troubles later period cleaning；(4) after the one side of piston is coated with lubricating oil, staff needs to hold
It is coated with the side of lubricating oil in piston, oiling then is carried out to the other side of piston；It is thereby possible to because gripping friction is smaller,
Caused by hold unstable problem.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of installations of piston to stablize, secured, oiling is uniform, oiling effect
The high piston oiling station of rate.
The present invention is realized by following technological means solves a kind of above-mentioned technical problem: piston oiling station, including fixed
Position mounting base, motor, hairbrush, holding frame assembly；The bottom of the fixed mounted seat, output shaft and institute is arranged in the motor
State fixed mounted seat connection；The fixed mounted seat is to place oil piston to be coated；The holding frame assembly is described to clamp
Hairbrush, the oily end of the brush of the hairbrush can stick on the surface of oil piston to be coated.
Preferably: the fixed mounted seat includes bottom mounting base, upper mounting seat；The upper mounting seat setting is pacified at the bottom
It fills the top of seat and is detachably connected with the bottom mounting base；Edge at the top of the bottom mounting base is provided with and oil piston to be coated
The compatible protrusion of seam allowance shape；In the distance at upper mounting seat length direction both ends and oil piston to be coated two pin hole seats it
Between be equidistant or be slightly less than the distance between two pin hole seats in oil piston to be coated.
Preferably: card slot is provided at the top of the bottom mounting base, the bottom of the upper mounting seat is provided with and the card
Slot is adapted card falcon；Or it uses and is threadedly coupled between the bottom mounting base and the upper mounting seat.
Preferably: the upper mounting seat is nylon rod.
Preferably: the edge at the top of the bottom mounting base is provided with multi-turn groove, is arranged on two inner walls of the groove
There is multiple groups spring plate；The spring plate includes the first spring plate, the second spring plate；First spring plate, the second spring plate are equal
For arch shape and it is oppositely arranged on corresponding inner wall；The bottom of the protrusion is provided with a circle card；The card can engage
Between the first spring plate, the second spring plate.
Preferably: the holding frame assembly includes inverted T-shaped substrate, and the upper end of the inverted T-shaped substrate offers hairbrush installation
Slot, the bar portion of the hairbrush pass through the hairbrush mounting groove and extend to the locality of the fixed mounted seat；In the hair
The bar portion of brush offers hairbrush external screw thread, and the first location nut, the second location nut are arranged in the bar portion of the hairbrush；It is described
First location nut, the second location nut are located at the two sides of the hairbrush mounting groove.
Preferably: being additionally provided with oil bottle mounting rack on the inverted T-shaped substrate；The oil bottle mounting rack includes supporting plate, ring
Shape frame；The toroidal frame is arranged above the supporting plate.
Preferably: the holding frame assembly further includes oil baffle, the oil baffle be located at the fixed mounted seat with it is described
Between inverted T-shaped substrate；The both ends of the oil baffle pass through connecting rod and connect with the inverted T-shaped substrate.
The present invention has the advantages that the present invention has the advantages that entire oiling process of the invention, passes through machine automatization
It completes, compares existing worker's oiling, have significantly either in terms of oiling efficiency, the time saving or in terms of accuracy
Raising.
Further, by the way that the piston to oiling to be placed on fixed mounted seat, so that the seam allowance of oil piston to be coated limits
In the protrusion at fixed mounted seat top edge, so that the upper mounting seat limit of fixed mounted seat is at two of oil piston to be coated
Between pin hole seat.Then piston is rotated, so that two of upper mounting seat diagonally resist two pin hole seats, realizes the Quick fastening of piston
Solid effect.
Further, upper mounting seat is nylon rod or is plastic rod.Due to nylon rod, plastic rod have certain elasticity,
Toughness.When it is diagonal squeezes pin hole seat, nylon rod, plastic rod can generate deformation, avoid on the inner wall of pin hole seat
Generation squeezes trace or due to rigid contact, so that upper mounting seat is difficult to fasten piston.
Further, piston oiling rotational positioning mounting base of the invention, by enabling motor, motor rotation drives bottom peace
The rotation for filling seat, upper mounting seat, to drive the rotation of oil piston to be coated.Staff extremely will be moistened with oil hairbrush be attached to
The surface for applying oil piston can be realized with the rotation of piston and do circumference oiling to piston face.Compared with prior art, it saves
Oiling time.Oiling effect is improved, is held without artificial, not only solves the unstable problem that holds, and will not will be oily
Stain is dropped on the body of staff.
Further, hairbrush can be taken out by unscrewing the first location nut, the second location nut, replaced, maintenance or
Person refuels.
Further, oil bottle bottom is supported on supporting plate, and is acted on by the guardrail of toroidal frame, prevent oil bottle from toppling over.
Further, by the setting of oil baffle, when preventing oiling, oil liquid splashes.
Detailed description of the invention
Fig. 1 is perspective view of the invention.
Fig. 2 is topology example figure of the invention.
Fig. 3 is the structural schematic diagram of the fixed mounted seat in the present invention.
Fig. 4 is structural schematic diagram of the fixed mounted seat under dismantling state in the present invention.
Fig. 5 is structural schematic diagram of the fixed mounted seat under overlooking state in the present invention.
Specific embodiment
To further describe the present invention, it is described further below with reference to embodiment.
As shown in Figure 1, the present invention includes fixed mounted seat 1, motor 2, hairbrush 3, holding frame assembly, guide rail 5, cylinder 6.Electricity
The bottom of fixed mounted seat is arranged in machine 2, and output shaft is connect with fixed mounted seat.Fixed mounted seat is living to oiling to place
Plug.For holding frame assembly to clamp hairbrush 3 and be slidably matched with guide rail 5, the oily end of the brush of hairbrush 3 can stick on oil piston to be coated
Surface.The tailpiece of the piston rod of cylinder 6 is connect with holding frame assembly, to drive holding frame assembly close or separate along guide rail 5
Fixed mounted seat.
Piston automatic oiling mechanism of the invention is placed on the desktop of workbench, wherein the bottom of desktop offers electricity
The top of desktop is arranged in 2 output shaft hole of machine, the fixing end of motor 2, and the output shaft of motor 2 passes through 2 output shaft hole of motor and determines
Position mounting base connection.
The brush oil end of hairbrush 3 is applied and is oiled, by hairbrush by the way that oil piston to be coated to be mounted on fixed mounted seat by the present invention
3 are clamped on holding frame.Starting cylinder 6, the piston rod movement of cylinder 6 drives holding frame assembly close to fixed mounted seat, until
Until the oily end of the brush of hairbrush 3 sticks on the surface of oil piston to be coated.Start motor 2, motor 2 rotates, and oil piston to be coated is driven to turn
Dynamic, realization treats oiling piston face and carries out circumference painting oil processing.
Entire oiling process of the invention is completed by machine automatization, existing worker's oiling is compared, either in oiling
Efficiency, time are all greatly improved in terms of saving aspect or accuracy.
In order to further increase the degree of automation, motor 2 of the invention, cylinder 6 can also excellent be servo motor, servo gas
Cylinder is realized by PLC numer centre and is moved.
As shown in Figs. 1-2, in some embodiments: holding frame assembly includes concavity part 41, the piston rod and guiding of cylinder 6
One end of screw rod 71 connects, and the other end of guide spiro rod 71 extends the sunk area of concavity part 41.It is covered on guide spiro rod 71
It is located at the first guide spiro rod nut 72, the second guide spiro rod nut 73.First guide spiro rod nut 72, the second guide spiro rod nut
73 are located at the two sides of sunk area.
The present invention is by tightening the first guide spiro rod nut 72, the second guide spiro rod nut 73, so that the first guide spiro rod
Nut 72, the second guide spiro rod nut 73 increase the friction between concavity part 41, to realize close to the surface of concavity part 41
The fastening of guide spiro rod 71 and concavity part 41.The piston rod stretching motion of cylinder 6 drives 71 stretching motion of guide spiro rod, due to
The fastening of guide spiro rod 71 and concavity part 41, so that holding frame assembly be driven to move along guide rail 5.
As in Figure 3-5, in some embodiments: fixed mounted seat includes bottom mounting base 11, upper mounting seat 12.Upper installation
Seat 12 is arranged in the top of bottom mounting base 11 and is detachably connected with bottom mounting base 11.The edge at 11 top of bottom mounting base is provided with
Compatible with oil piston seam allowance shape to be coated raised 13.In the distance and oil piston to be coated at 12 length direction both ends of upper mounting seat
The distance between two pin hole seats are equal or are slightly less than the distance between two pin hole seats in oil piston to be coated.
The present embodiment is by the way that the piston to oiling to be placed on fixed mounted seat, so that the seam allowance of oil piston to be coated limits
In the protrusion 13 at fixed mounted seat top edge, so that the upper mounting seat 12 of fixed mounted seat is limited in oil piston to be coated
Between two pin hole seats.Then piston is rotated, so that two of upper mounting seat 12 diagonally resist two pin hole seats, realizes piston
The effect of Quick fastening.
Due to being detachably connected with upper mounting seat 12 for bottom mounting base 11, facilitate upper mounting seat 12, bottom mounting base 11 more
It changes, to adapt to the fastening to the piston of different model.
In some embodiments: the top of bottom mounting base 11 is provided with card slot 109, the bottom of upper mounting seat 12 be provided with
Card slot 109 is adapted card falcon 110.Or it uses and is threadedly coupled between bottom mounting base 11 and upper mounting seat 12.
In some embodiments: the bottom of bottom mounting base is provided with mounting groove, and rubber sleeve is arranged in mounting groove, motor
Output shaft and rubber sleeve are interference fitted.
In some embodiments: offering external screw thread on the output shaft of the motor, set in the bottom of the bottom mounting base
It is equipped with the internal thread hole matched with the external screw thread.
In some embodiments: upper mounting seat 12 is nylon rod or is plastic rod.Since nylon rod, plastic rod have one
Fixed elasticity, toughness.When it is diagonal squeezes pin hole seat, nylon rod, plastic rod can generate deformation, avoid in pin hole seat
Inner wall on generate and squeeze trace or due to rigid contact so that upper mounting seat 12 is difficult to fasten piston.
In some embodiments: the edge at the top of bottom mounting base 11 is provided with multi-turn groove 14, fluted 14 center
It is concentric with the center of bottom mounting base 11.Multiple groups spring plate is provided on two inner walls of each circle groove 14.Spring plate includes
First spring plate 15, the second spring plate 16.First spring plate 15, the second spring plate 16 are arch shape and are oppositely arranged on correspondence
Inner wall on.The bottom of protrusion 13 is provided with a circle card 17.Card 17 can be fastened on the first spring plate 15, the second spring plate 16
Between.
The distance between the piston of different model its seam allowance size, two pin hole seats difference, due to protrusion 13 of the invention
Corresponding groove 14 is detachably connected and has multi-turn groove 14, is able to achieve for different pistons, selection uses different
Protrusion 13 cooperate corresponding groove 14, have the function that be able to achieve fastening to the piston of different model.In addition, utilizing
17 mode of card of first spring plate 15, the second spring plate 16 cooperation card 17, is able to achieve the effect that protrusion 13 is inserted fastly.
In some embodiments: holding frame assembly includes inverted T-shaped substrate 42, and guide rail 5 includes left rail, right guide rail.Concavity
Part 41 is fixed on inverted T-shaped substrate 42.The two sides of inverted T-shaped substrate 42 are limited respectively in left rail, right guide rail.Inverted T-shaped substrate
42 upper end offers hairbrush mounting groove, and the bar portion of hairbrush 3 passes through hairbrush mounting groove and prolongs to the locality of fixed mounted seat
It stretches.Hairbrush external screw thread is offered in the bar portion of hairbrush 3, the first location nut 91, second positioning spiral shell is arranged in the bar portion of hairbrush 3
Mother 92.First location nut 91, the second location nut 92 are located at the two sides of hairbrush mounting groove.
The principle and the first guide spiro rod nut of first location nut 91, the bar portion of the second location nut 92 fastening hairbrush 3
72, the principle of the second guide spiro rod nut 73 fastening guide spiro rod 71 is identical.In addition, by unscrewing the first location nut 91,
Two location nuts 92 can take out hairbrush 3, be replaced, maintenance or oiling.
In some embodiments: oil bottle mounting rack is additionally provided on inverted T-shaped substrate 42.Oil bottle mounting rack includes supporting plate
4221, toroidal frame 4222.Toroidal frame 4222 is arranged above supporting plate 4221.The bottom that oil bottle 8 is placed is supported on supporting plate 4221
On, and acted on by the guardrail of toroidal frame 4222, prevent oil bottle 8 from toppling over.
In some embodiments: holding frame assembly further includes oil baffle 43, and oil baffle 43 is located at fixed mounted seat and inverted T-shaped base
Between plate 42.The both ends of oil baffle 43 pass through connecting rod and connect with inverted T-shaped substrate 42.By the setting of oil baffle 43, prevent
When oiling, oil liquid splashes.
A method of piston, which is carried out, using above-mentioned piston automatic oiling mechanism applies oil processing, which is characterized in that including
Following steps:
(1) oil piston to be coated is mounted on fixed mounted seat.
(2) the brush oil end of hairbrush 3 is applied and is oiled, hairbrush 3 is clamped on holding frame.
(3) start cylinder 6, the piston rod movement of cylinder 6 drives holding frame assembly close to fixed mounted seat, until hairbrush 3
The oily end of brush stick on oil piston to be coated surface until.
(4) start motor 2, motor 2 rotates, and oil piston to be coated is driven to rotate, and treats oiling piston face and carries out at oiling
Reason.
The above is only the preferred embodiments of the invention, are not intended to limit the invention creation, all in the present invention
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the invention within the spirit and principle of creation
Within the scope of shield.
Claims (7)
1. a kind of piston oiling station, it is characterised in that: including fixed mounted seat, motor, hairbrush, holding frame assembly；The electricity
The bottom of the fixed mounted seat is arranged in machine, and output shaft is connect with the fixed mounted seat；The fixed mounted seat to
Place oil piston to be coated；The holding frame assembly can be sticked on to clamp the hairbrush, the brush oil end of the hairbrush to oiling
The surface of piston；The fixed mounted seat includes bottom mounting base, upper mounting seat；The upper mounting seat is arranged in the bottom mounting base
Top and be detachably connected with the bottom mounting base；Edge at the top of the bottom mounting base is provided with and oil piston seam allowance to be coated
The compatible protrusion of shape；In the distance and oil piston to be coated at upper mounting seat length direction both ends between two pin hole seats
It is equidistant or is slightly less than the distance between two pin hole seats in oil piston to be coated.
2. piston oiling station according to claim 1, it is characterised in that: be provided with card at the top of the bottom mounting base
Slot, the bottom of the upper mounting seat, which is provided with, is adapted card falcon with the card slot；Or the bottom mounting base and the upper installation
Using threaded connection between seat.
3. piston oiling station according to claim 1, it is characterised in that: the upper mounting seat is nylon rod or rubber
Stick or plastic rod.
4. piston oiling station according to claim 1, it is characterised in that: the edge at the top of the bottom mounting base is provided with
Multi-turn groove is provided with multiple groups spring plate on two inner walls of the groove；The spring plate includes the first spring plate, the second bullet
Sheet body；First spring plate, the second spring plate are arch shape and are oppositely arranged on corresponding inner wall；The bottom of the protrusion
Portion is provided with a circle card；The card can be fastened between the first spring plate, the second spring plate.
5. piston oiling station according to claim 1, it is characterised in that: the holding frame assembly includes inverted T-shaped substrate,
The upper end of the inverted T-shaped substrate offers hairbrush mounting groove, and the bar portion of the hairbrush passes through the hairbrush mounting groove and to described
The locality of fixed mounted seat extends；Hairbrush external screw thread is offered in the bar portion of the hairbrush, is covered in the bar portion of the hairbrush
Equipped with the first location nut, the second location nut；First location nut, the second location nut are located at the hairbrush peace
The two sides of tankage.
6. piston oiling station according to claim 5, it is characterised in that: be additionally provided with oil on the inverted T-shaped substrate
Bottle mounting rack；The oil bottle mounting rack includes supporting plate, toroidal frame；The toroidal frame is arranged above the supporting plate.
7. piston oiling station according to claim 5, it is characterised in that: the holding frame assembly further includes oil baffle,
The oil baffle is between the fixed mounted seat and the inverted T-shaped substrate；The both ends of the oil baffle pass through connecting rod
It is connect with the inverted T-shaped substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610962946.5A CN106269385B (en) | 2016-10-28 | 2016-10-28 | A kind of piston oiling station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610962946.5A CN106269385B (en) | 2016-10-28 | 2016-10-28 | A kind of piston oiling station |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106269385A CN106269385A (en) | 2017-01-04 |
| CN106269385B true CN106269385B (en) | 2019-05-14 |
Family
ID=57720566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610962946.5A Expired - Fee Related CN106269385B (en) | 2016-10-28 | 2016-10-28 | A kind of piston oiling station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106269385B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109092636B (en) * | 2018-09-18 | 2024-03-15 | 瑞立集团瑞安汽车零部件有限公司 | Automatic oiling tool for relay valve piston |
| CN113477477B (en) * | 2021-07-27 | 2023-04-07 | 湖北三江航天险峰电子信息有限公司 | Oil coating device for guide rail inside pipeline |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090050183A (en) * | 2007-11-15 | 2009-05-20 | 정경수 | Piston coating apparatus and coating method for compressor |
| CN203540819U (en) * | 2013-11-22 | 2014-04-16 | 浙江圣峰汽车部件有限公司 | End-cap fast gluing machine |
| CN104475286A (en) * | 2014-12-24 | 2015-04-01 | 金华职业技术学院 | Outer surface spraying machine for cylindrical sleeve type parts |
| CN104588257A (en) * | 2015-01-15 | 2015-05-06 | 郭玉 | Gluing device for filter upper cover sealing ring |
| CN204503469U (en) * | 2015-03-24 | 2015-07-29 | 山东墨龙石油机械股份有限公司 | Cast workpiece automatic oiling device |
-
2016
- 2016-10-28 CN CN201610962946.5A patent/CN106269385B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090050183A (en) * | 2007-11-15 | 2009-05-20 | 정경수 | Piston coating apparatus and coating method for compressor |
| CN203540819U (en) * | 2013-11-22 | 2014-04-16 | 浙江圣峰汽车部件有限公司 | End-cap fast gluing machine |
| CN104475286A (en) * | 2014-12-24 | 2015-04-01 | 金华职业技术学院 | Outer surface spraying machine for cylindrical sleeve type parts |
| CN104588257A (en) * | 2015-01-15 | 2015-05-06 | 郭玉 | Gluing device for filter upper cover sealing ring |
| CN204503469U (en) * | 2015-03-24 | 2015-07-29 | 山东墨龙石油机械股份有限公司 | Cast workpiece automatic oiling device |
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| Publication number | Publication date |
|---|---|
| CN106269385A (en) | 2017-01-04 |
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