CN114473817A - Process and method for automatically polishing workpiece sealing surface along grain - Google Patents
Process and method for automatically polishing workpiece sealing surface along grain Download PDFInfo
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- CN114473817A CN114473817A CN202210156222.7A CN202210156222A CN114473817A CN 114473817 A CN114473817 A CN 114473817A CN 202210156222 A CN202210156222 A CN 202210156222A CN 114473817 A CN114473817 A CN 114473817A
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- polishing
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- along
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- 238000005498 polishing Methods 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 44
- 238000007789 sealing Methods 0.000 title claims abstract description 38
- 244000137852 Petrea volubilis Species 0.000 claims description 26
- 239000000463 material Substances 0.000 claims description 10
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000009991 scouring Methods 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000227 grinding Methods 0.000 abstract description 14
- 238000005516 engineering process Methods 0.000 abstract description 4
- 239000000758 substrate Substances 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000003912 environmental pollution Methods 0.000 abstract description 3
- 238000003908 quality control method Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000007517 polishing process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
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
- B24B29/00—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents
- B24B29/02—Machines or devices for polishing surfaces on work by means of tools made of soft or flexible material with or without the application of solid or liquid polishing agents designed for particular workpieces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B47/00—Drives or gearings; Equipment therefor
- B24B47/20—Drives or gearings; Equipment therefor relating to feed movement
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to the technical field of sealing element processing technology, in particular to a technology and a method for automatically polishing a sealing surface of a workpiece along grains. The operation method for processing the surface of the part substrate and automatically polishing the surface along the grains is easy to realize automatic grinding and polishing operation, realizes automation, has more comprehensive quality control, reduces the grinding cost, improves the economic benefit, improves the quality of the sealing element, improves the sealing performance, saves energy and reduces environmental pollution.
Description
Technical Field
The invention relates to the technical field of sealing element processing technologies, in particular to a process and a method for automatically polishing a sealing surface of a workpiece along grains.
Background
In a hydraulic system, the difference of the sealing performance among connecting pieces directly leads to the quality of the hydraulic performance, the poor sealing performance not only causes the unstable pressure of the hydraulic system, the unreliable work, the energy waste, the reduction of the mechanical efficiency, the environmental pollution and the inconvenience of later maintenance. In order to improve the sealing performance of the system, special treatment is required to be carried out on the sealing surface of the part.
In general, common machining methods (such as milling and grinding) leave cutting lines or grinding scratches on the surface of a part, even if the surface subjected to grinding machining is smooth, the surface actually has many fine micro scratches. If the surface is left untreated as a seal, particularly in medium or higher pressure hydraulic systems, hydraulic oil leaks out through the fine scratches, resulting in seal failure.
Disclosure of Invention
The invention aims to provide a process and a method for automatically polishing the sealing surface of a workpiece along the grain, so as to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: the process comprises the following steps of processing the surface of a part base material, and performing automatic polishing along the grain after the surface of the part base material is processed, wherein the processing step of the surface of the part base material comprises the following steps:
firstly, roughly polishing, namely polishing a sealing surface by using a concentric polishing machine and selecting 32-120 meshes of abrasive paper until lines processed on the surface of a part are polished;
secondly, polishing, namely polishing the sealing surface by using a concentric polishing machine and sand paper with the mesh number of 180-240 until the lines processed on the surface of the part are polished;
thirdly, fine polishing, namely polishing the sealing surface by using a concentric polishing machine and selecting sand paper with the mesh number of 320 or more until lines processed on the surface of the part are polished, and repeating twice;
fourthly, eccentric polishing, namely polishing the sealing surface by using an eccentric polishing machine and selecting sand paper with a mesh number larger than that of the third step;
fifthly, cleaning the surface, namely polishing by using an eccentric polishing machine and using red scouring pad and alcohol to clean the surface;
the automatic grain-following polishing operation method comprises the following steps:
s1, selecting a polishing head of a polisher which is in contact with a part, is narrow and long in shape and has certain elasticity in material;
and S2, setting the position of the polishing head, wrapping the narrow and long surface of the polishing head by using the abrasive paper with the mesh number larger than that in the fourth step, pressing the abrasive paper on the surface of the part by using the elasticity of the polishing head, and keeping the narrow and long surface of the polishing head vertical to the grain polishing path all the time.
And S3, automatically polishing, and driving a polishing head to polish along the lines of the sealing surface through a polisher.
Preferably, in the third step, when repeating twice, the mesh number of the sandpaper used in the two times should be gradually increased.
Preferably, in the fifth step, after finishing the processing, the sealing member is not directly contacted by hands or other articles, so as to prevent scratching of the processed surface.
Preferably, in S3, when the circular arc path is ground, the grinding head is required to rotate, and the rotation rule is that the grinding head revolves along the track for one circle and rotates for one circle at the same time.
Preferably, in S3, the sand paper used in the single polishing path is repeatedly polished for several times, and finally polished by red scouring pad and alcohol, wherein the mesh number of the sand paper is larger than that of the sand paper in S2.
Preferably, in S3, for the part having the cross polishing path, sand paper is selected to polish the non-important sealing surface along the lines, and then sand paper of different specifications is used to repeatedly polish the sealing surface until the lines of the cross path do not intersect, and the mesh number of the sand paper is greater than that of the sand paper in S2.
Preferably, in the first step, the concentric sander needs to be adjusted to a suitable rotational speed.
Preferably, in the fourth step, the eccentric grinder needs to be adjusted to a proper rotating speed.
Compared with the prior art, the invention has the beneficial effects that:
the operation method for processing the surface of the part substrate and automatically polishing the surface along the grains is easy to realize automatic grinding and polishing operation, realizes automation, has more comprehensive quality control, reduces the grinding cost, improves the economic benefit, improves the quality of the sealing element, improves the sealing performance, saves energy and reduces environmental pollution.
Drawings
FIG. 1 is a sample of a part sealing surface that has been treated using the present process;
FIG. 2 is a sample of the part sealing surface after the smooth grain polishing by the method.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, a substrate is first processed on the sealing surface to polish the milled or ground lines of the surface, and the specific operation method is as follows:
firstly, polishing a sealing surface by using 32-mesh sand paper by using a concentric polishing machine (adjusting the rotating speed to be proper) until the lines processed on the surface of a part are polished;
then, grinding with 180-mesh sand paper until the grains are ground;
then, grinding with 320-mesh sand paper until the grains are ground;
then, 480-mesh sand paper is used for polishing until the lines in the front polishing process are polished;
and then an eccentric grinding machine (the rotating speed is adjusted to be proper) is used, sand paper of another specification is selected for grinding, and then red scouring pad and alcohol are used for grinding to achieve the effect of cleaning the surface.
To this end, the treatment of the surface of the substrate of the part has been completed, bearing in mind that direct contact by hand or other objects is not necessary to prevent scratching of the treated surface.
Referring to fig. 2, the seal surface is subjected to the automatic grain polishing treatment:
the main characteristic of the automatic polishing operation along the grain is that the contact shape of the polishing head and the part is made to be narrow and long, the material has certain elasticity, when polishing along the grain, the abrasive paper wraps the narrow and long surface of the polishing head, the elasticity of the polishing head is utilized to press the abrasive paper on the surface of the part, and the narrow and long surface of the polishing head and the polishing path along the grain are always kept in a vertical relation, especially when an arc path is taken, the polishing head is required to have a function of rotating along a track (the polishing head revolves along the track for a circle and rotates for a circle at the same time), and after analysis and demonstration, the polishing head can only make the polishing grain along the grain meeting the requirement if the polishing head has the function.
The method comprises the steps of selecting the automatic polishing sand paper along the grains, aiming at a single polishing path, adopting the sand paper with a certain specification, and finally adding alcohol to red scouring pad, and for parts with cross polishing paths, firstly selecting the sand paper with a finer specification to polish the non-important sealing surfaces along the grains according to the requirements of customers, and then repeatedly polishing the important sealing surfaces by adopting the sand papers with different specifications until the grains of the cross paths do not have the cross condition.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A process and a method for automatically polishing the sealing surface of a workpiece along the grain comprise the operation methods of processing the surface of a part base material and automatically polishing along the grain, and are characterized in that: the method comprises the following steps of firstly processing the surface of a part base material, and after the surface of the part base material is processed, automatically polishing along the grains, wherein the processing steps of the surface of the part base material are as follows:
firstly, roughly polishing, namely polishing a sealing surface by using a concentric polishing machine and selecting 32-120 meshes of abrasive paper until lines processed on the surface of a part are polished;
secondly, polishing, namely polishing the sealing surface by using a concentric polishing machine and sand paper with the mesh number of 180-240 until the lines processed on the surface of the part are polished;
thirdly, fine polishing, namely polishing the sealing surface by using a concentric polishing machine and selecting sand paper with the mesh number of 320 or more until lines processed on the surface of the part are polished, and repeating twice;
fourthly, eccentric polishing, namely polishing the sealing surface by using an eccentric polishing machine and selecting sand paper with a mesh number larger than that of the third step;
fifthly, cleaning the surface, namely polishing by using an eccentric polishing machine and using red scouring pad and alcohol to clean the surface;
the automatic grain-following polishing operation method comprises the following steps:
s1, selecting a polishing head of a polisher which is in contact with a part, is narrow and long in shape and has certain elasticity in material;
and S2, setting the position of the polishing head, wrapping the narrow and long surface of the polishing head by using the abrasive paper with the mesh number larger than that in the fourth step, pressing the abrasive paper on the surface of the part by using the elasticity of the polishing head, and keeping the narrow and long surface of the polishing head vertical to the grain polishing path all the time.
And S3, automatically polishing, and driving a polishing head to polish along the lines of the sealing surface through a polisher.
2. The process and the method for automatically polishing the seal surface of the workpiece along the grain according to claim 1, wherein the process comprises the following steps: in the third step, when repeating twice, the mesh number of the sandpaper used in the two times should be gradually increased.
3. The process and the method for automatically polishing the seal surface of the workpiece along the grain according to claim 1, wherein the process comprises the following steps: in the fifth step, hands or other objects cannot be directly contacted with the sealing element after the processing is finished, so that the processed surface is prevented from being scratched.
4. The process and the method for automatically polishing the seal surface of the workpiece along the grain according to claim 1, wherein the process comprises the following steps: in the step S3, when the circular arc path is polished, the polishing head is required to rotate, the rotation rule is that the polishing head revolves for one circle along the track, and the polishing head rotates for one circle at the same time.
5. The process and the method for automatically polishing the seal surface of the workpiece along the grain according to claim 1, wherein the process comprises the following steps: and in the step S3, aiming at a single polishing path, repeatedly polishing the adopted abrasive paper for a plurality of times, and finally polishing the abrasive paper by using red scouring pad and alcohol, wherein the mesh number of the abrasive paper is larger than that of the abrasive paper in the step S2.
6. The process and the method for automatically polishing the seal surface of the workpiece along the grain according to claim 1, wherein the process comprises the following steps: in the step S3, for parts with crossed polishing paths, sand paper is selected to polish non-important sealing surfaces along lines, then sand paper with different specifications is adopted to repeatedly polish the sealing surfaces until the lines of the crossed paths are not crossed, and the mesh number of the sand paper is larger than that of the sand paper in the step S2.
7. The process and the method for automatically polishing the seal surface of the workpiece along the grain according to claim 1, wherein the process comprises the following steps: in the first step, the concentric sander needs to be adjusted to the proper rotational speed.
8. The process and the method for automatically polishing the seal surface of the workpiece along the grain according to claim 1, wherein the process comprises the following steps: in the fourth step, the eccentric grinder needs to be adjusted to a proper rotating speed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210156222.7A CN114473817A (en) | 2022-02-21 | 2022-02-21 | Process and method for automatically polishing workpiece sealing surface along grain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210156222.7A CN114473817A (en) | 2022-02-21 | 2022-02-21 | Process and method for automatically polishing workpiece sealing surface along grain |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114473817A true CN114473817A (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210156222.7A Pending CN114473817A (en) | 2022-02-21 | 2022-02-21 | Process and method for automatically polishing workpiece sealing surface along grain |
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| CN (1) | CN114473817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115008355A (en) * | 2022-06-21 | 2022-09-06 | 华能山东石岛湾核电有限公司 | High-temperature gas cooled reactor pressure vessel flange sealing surface repairing kit and method |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005297173A (en) * | 2004-04-13 | 2005-10-27 | Nakaya Seisakusho:Kk | Vacuum seal face machining of aluminum alloy |
| CN103624657A (en) * | 2013-11-28 | 2014-03-12 | 潘刚 | Wet-type mirror face grinding and polishing method |
| CN105643428A (en) * | 2016-01-08 | 2016-06-08 | 湖南大学 | Grinding and polishing method using revolving elastomer |
| CN105751012A (en) * | 2014-12-15 | 2016-07-13 | 重庆迅升机车配件有限公司 | Sealing surface grinding technology |
| CN205734476U (en) * | 2016-06-29 | 2016-11-30 | 永康市摩谊工具有限公司 | A kind of polisher eliminating polishing trace |
| CN106985011A (en) * | 2017-05-16 | 2017-07-28 | 江西中福瑞能源设备有限公司 | The stainless steel pipe surface glossing of mirror effect |
| CN107322423A (en) * | 2017-09-04 | 2017-11-07 | 凯盛重工有限公司 | A kind of technique for grinding of metal vacuum cavity sealing surface |
| CN206825184U (en) * | 2017-06-14 | 2018-01-02 | 江苏迅隆科技发展有限公司 | The arrangement for grinding of high pressure power transmission and distribution Al-alloy casing sealing surface |
| CN111546251A (en) * | 2020-05-28 | 2020-08-18 | 沈阳富创精密设备有限公司 | Polishing method for irregular sealing surface of deep hole or narrow area of high-vacuum part |
| CN113967858A (en) * | 2021-11-03 | 2022-01-25 | 江苏核电有限公司 | Method and device for grinding sealing surface of valve for nuclear power station |
-
2022
- 2022-02-21 CN CN202210156222.7A patent/CN114473817A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005297173A (en) * | 2004-04-13 | 2005-10-27 | Nakaya Seisakusho:Kk | Vacuum seal face machining of aluminum alloy |
| CN103624657A (en) * | 2013-11-28 | 2014-03-12 | 潘刚 | Wet-type mirror face grinding and polishing method |
| CN105751012A (en) * | 2014-12-15 | 2016-07-13 | 重庆迅升机车配件有限公司 | Sealing surface grinding technology |
| CN105643428A (en) * | 2016-01-08 | 2016-06-08 | 湖南大学 | Grinding and polishing method using revolving elastomer |
| CN205734476U (en) * | 2016-06-29 | 2016-11-30 | 永康市摩谊工具有限公司 | A kind of polisher eliminating polishing trace |
| CN106985011A (en) * | 2017-05-16 | 2017-07-28 | 江西中福瑞能源设备有限公司 | The stainless steel pipe surface glossing of mirror effect |
| CN206825184U (en) * | 2017-06-14 | 2018-01-02 | 江苏迅隆科技发展有限公司 | The arrangement for grinding of high pressure power transmission and distribution Al-alloy casing sealing surface |
| CN107322423A (en) * | 2017-09-04 | 2017-11-07 | 凯盛重工有限公司 | A kind of technique for grinding of metal vacuum cavity sealing surface |
| CN111546251A (en) * | 2020-05-28 | 2020-08-18 | 沈阳富创精密设备有限公司 | Polishing method for irregular sealing surface of deep hole or narrow area of high-vacuum part |
| CN113967858A (en) * | 2021-11-03 | 2022-01-25 | 江苏核电有限公司 | Method and device for grinding sealing surface of valve for nuclear power station |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115008355A (en) * | 2022-06-21 | 2022-09-06 | 华能山东石岛湾核电有限公司 | High-temperature gas cooled reactor pressure vessel flange sealing surface repairing kit and method |
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Application publication date: 20220513 |