CN114683144B - Grinding tool and grinding method for mounting hole of cylinder sleeve grease gun - Google Patents
Grinding tool and grinding method for mounting hole of cylinder sleeve grease gun Download PDFInfo
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- CN114683144B CN114683144B CN202210379104.2A CN202210379104A CN114683144B CN 114683144 B CN114683144 B CN 114683144B CN 202210379104 A CN202210379104 A CN 202210379104A CN 114683144 B CN114683144 B CN 114683144B
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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
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
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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
- B24B41/00—Component parts such as frames, beds, carriages, headstocks
- B24B41/04—Headstocks; Working-spindles; Features relating thereto
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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
- B24B55/00—Safety devices for grinding or polishing machines; Accessories fitted to grinding or polishing machines for keeping tools or parts of the machine in good working condition
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a grinding tool and a grinding method for a mounting hole of a cylinder sleeve grease gun, relates to the technical field of production and manufacturing of marine low-speed diesel engines, solves the problem that the conical surface of the mounting hole of the conventional cylinder grease gun is difficult to process, improves the grinding precision, ensures the airtight seal of the mounting hole, and has the following specific scheme: including stretching into the grinding shaft in the cylinder liner mounting hole, the one end that grinding shaft and mounting hole terminal surface contacted is the toper terminal surface, and boss structure's bush has been cup jointed to the other end of grinding shaft, the bush is fixed to be set up on the outer wall of cylinder liner for restrict the swing of grinding shaft and to its location, be equipped with grinding sand paper on the toper terminal surface fixedly, the one end and the electric hand drill fixed connection that the toper terminal surface was kept away from to the grinding shaft.
Description
Technical Field
The invention relates to the field of production and manufacturing of marine low-speed diesel engines, in particular to a grinding tool and a grinding method for mounting holes of cylinder sleeve grease guns.
Background
The statements herein merely provide background information related to the present disclosure and may not necessarily constitute prior art.
In the field of manufacturing of marine low-speed diesel engines, cylinder oil injection guns are divided into two types, namely high-pressure injection and low-pressure injection, the low-pressure injection oil injection guns are positioned in the middle of a cylinder sleeve, the sealing pressure of the joint surface of the cylinder sleeve and the oil injection guns is 10bar, and the temperature of the inner wall of the cylinder sleeve is about 100 ℃; the high-pressure injection oil gun is positioned at the upper part of the cylinder sleeve, the sealing pressure of the joint surface of the cylinder sleeve and the oil gun is 40bar, and the temperature of the inner wall of the cylinder sleeve is about 380 ℃.
The cylinder grease gun and the cylinder sleeve are sealed by conical surfaces, and compared with a low-pressure cylinder oil injection system, the high-pressure cylinder oil injection system has higher requirements on the contact conical surfaces of the cylinder sleeve and the grease gun, and the general design requires surface roughness Ra0.8 to Ra1.6, and the angle deviation is smaller than 0.1 degrees.
The inventor finds that the cylinder sleeve material is ductile cast iron, the hardness is very high, the mounting hole of the oil gun is a deep hole, the traditional milling yield is only 30%, the product quality requirement cannot be met, and the poor contact between the oil gun and the surface of the cylinder sleeve and the air leakage are easily caused.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a grinding tool and a grinding method for a mounting hole of a cylinder liner grease gun, wherein a special grinding shaft is designed, grinding sand paper is fixed on the end face of the grinding shaft, and the mounting hole of the cylinder liner grease gun is ground by using the grinding sand paper, so that the problem that the conical surface of the mounting hole of the conventional cylinder grease gun is difficult to process is solved.
In order to achieve the above object, the present invention is realized by the following technical scheme:
in a first aspect, the invention provides a grinding tool for a mounting hole of a cylinder liner grease gun, comprising a grinding shaft extending into the mounting hole of the cylinder liner, wherein one end of the grinding shaft, which is in contact with the end surface of the mounting hole, is a conical end surface, the other end of the grinding shaft is sleeved with a bushing with a boss structure, the bushing is fixedly arranged on the outer wall of the cylinder liner and used for limiting the swing of the grinding shaft and positioning the grinding shaft, grinding sand paper is fixedly arranged on the conical end surface, and one end, far away from the conical end surface, of the grinding shaft is fixedly connected with an electric hand drill.
As a further implementation mode, a threaded hole is formed in the middle of the conical end face of the grinding shaft, and the grinding sand paper is fixedly arranged on the conical end face through a flange on the screw.
As a further implementation manner, the screw is located in the oil filling hole of the cylinder sleeve, and the screw is in clearance fit with the oil filling hole.
As a further implementation, the abrasive coated abrasive is a funnel-shaped structure formed by rolling a fan-shaped coated abrasive.
As a further implementation mode, the grinding shaft is of a stepped shaft structure and is divided into a grinding part, a limiting part and a rotating part, one end of the grinding part is a conical end face, the other end of the grinding part is fixedly connected with the limiting part, one end of the limiting part, which is far away from the grinding part, is fixedly connected with the rotating part, and the rotating part is connected with the electric hand drill.
As a further implementation mode, the length of the grinding part is smaller than the depth of the mounting hole, the diameter of the grinding part is smaller than the diameter of the limiting part, the limiting part is sleeved with a bushing, and the bushing is in small clearance fit with the limiting part.
As a further implementation mode, the bushing is provided with oppositely arranged bolt holes, the bolt holes are fixedly arranged on the outer wall of the cylinder sleeve through bolts, the protruding part of the bushing is inserted into the mounting hole, and the protruding part is in small clearance fit with the mounting hole.
As a further implementation, a distance sleeve is further included, two ends of the distance sleeve are respectively contacted with the adjacent grinding shaft and the lining sleeve, and are used for connecting the grinding shaft and the lining sleeve in the axial direction so as to provide pressure for enabling the conical end face of the grinding shaft to be contacted with the conical mounting surface in the mounting hole.
In a second aspect, the present invention further provides a polishing method, which uses the polishing tool for the mounting hole of the cylinder liner grease gun, and specifically comprises the following steps:
step 1: manufacturing sector-shaped abrasive sand paper, and rolling the sector-shaped abrasive sand paper into a funnel shape, wherein the abrasive sand paper needs to be prepared into a coarse grinding type and a fine grinding type;
step 2: the funnel-shaped grinding sand paper is fixed on the conical end face of the grinding shaft through a screw, and the bushing is coated with grease for lubrication and then sleeved on the limiting part of the grinding shaft;
step 3: inserting an abrasive tool into a mounting hole of a cylinder liner cylinder grease gun, mounting a connecting bolt, fixing a bushing to a cylinder liner, clamping the end part of a grinding shaft rotating part by using an electric hand drill chuck, starting the electric hand drill, and keeping grinding sand paper in contact with a conical mounting surface in the cylinder liner mounting hole for grinding for 5 minutes;
step 4: removing the connecting bolt, removing the grinding tool, checking the conical mounting surface of the mounting hole, and if the roughness meets the requirement, replacing fine grinding sand paper and grinding for 2 minutes; if the requirements are not met, grinding the materials according to the steps 1 and 2 by using coarse grinding sand paper continuously until the requirements are met, and replacing fine grinding sand paper;
step 5: after all grinding is finished, performing spot check on at least two grinding conical surfaces for checking;
step 6: cleaning the mounting hole on the cylinder sleeve grease gun and blowing out by using compressed air.
As a further implementation manner, the checking method in step 5 is as follows: smearing oil with bright colors on the conical end face of the grinding shaft; and adding a distance sleeve between the grinding shaft and the bushing, then installing the distance sleeve into the installation hole, symmetrically and uniformly tightening the connecting bolts on the bushing, dismantling all components after the grinding tool is installed and stands for one minute, and checking the coloring condition of the conical installation surface in the installation hole.
The beneficial effects of the invention are as follows:
(1) According to the invention, one end of the grinding shaft, which is contacted with the conical mounting surface of the mounting hole to be ground, is a conical end surface, the taper of the grinding shaft is the same as the design taper of the conical mounting surface of the mounting hole, and the conical end surface of the grinding shaft is fixedly provided with grinding sand paper for grinding the conical mounting surface in the mounting hole to be ground, so that the conical mounting surface in the mounting hole is effectively ensured to meet the design requirement, and the problem of air leakage during the mounting of a subsequent grease gun is avoided.
(2) The grinding sand paper is funnel-shaped, so that the grinding sand paper is tightly attached to the conical end face of the grinding shaft in the grinding process, the grinding sand paper is uniformly stressed, and the grinding uniformity of the grinding surface in the mounting hole is effectively ensured.
(3) The grinding shaft is sleeved with the bushing, the bushing is of a boss structure, the swing of the grinding shaft is limited under the action of the bushing, the damage of the swing of the grinding shaft to the side wall of the mounting hole is effectively avoided, meanwhile, the bushing can ensure the axial positioning of the grinding shaft, the center of the grinding shaft is consistent with the center of the conical mounting surface in the mounting hole, the grinding angle is unchanged, and the grinding angle of the conical mounting surface meets the requirement.
(4) The matched use of the distance sleeve and the bushing ensures the moderate pressure applied to the grinding shaft, avoids the excessive compaction of the grinding shaft and the conical mounting surface in the mounting hole, and ensures the accuracy of coloring detection.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention.
FIG. 1 is a schematic cross-sectional view of an exploded structure of a cylinder liner grease gun mounting hole grinding tool according to one or more embodiments of the present invention;
fig. 2 is a schematic view of a coated abrasive sheet according to one or more embodiments of the invention;
FIG. 3 is a schematic illustration of the overall structure of a cylinder liner grease gun mounting hole grinding tool according to one or more embodiments of the present invention;
FIG. 4 is a schematic three-dimensional view of a cylinder liner grease gun mounting hole grinding tool according to one or more embodiments of the present invention;
FIG. 5 is a schematic view of a grinding installation according to one or more embodiments of the invention;
FIG. 6 is a schematic view of an abrasive cone inspection according to one or more embodiments of the present invention;
in the figure: the mutual spacing or size is exaggerated for showing the positions of all parts, and the schematic drawings are used only for illustration;
wherein, 1, a screw; 2. grinding sand paper; 3. grinding the shaft; 4. a distance sleeve; 5. a bushing; 6. a sandpaper template; 7. cutting the guide groove; 8. a mounting hole; 9. an oil filling hole; 10. an electric hand drill.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the invention. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
As introduced by the background technology, the cylinder sleeve material is ductile cast iron, the hardness is high, the yield of the traditional milling processing is only 30 percent, the product quality requirement cannot be met, and the problem of air leakage caused by poor contact between an oil gun and the surface of the cylinder sleeve is solved.
Example 1
In an exemplary embodiment of the present invention, as shown in fig. 1-6, a cylinder liner grease gun mounting hole grinding tool is provided, comprising a grinding shaft 3, the grinding shaft 3 extending into a mounting hole 8 in the cylinder liner for grinding a tapered mounting surface in the mounting hole 8.
Specifically, one end of the grinding shaft 3, which is in contact with the conical mounting surface of the mounting hole 8 to be ground, is a conical end surface, and the taper of the conical end surface of the grinding shaft 3 is the same as the design taper of the conical mounting surface of the mounting hole 8, so that the conical mounting surface in the mounting hole 8 to be ground is ground, and meets the design requirement.
The conical end face of the grinding shaft 3 is fixedly provided with grinding sand paper 2, the grinding sand paper 2 is of a funnel-shaped structure formed by rolling fan-shaped sand paper, and specifically, the middle part of the grinding sand paper 2 is provided with an opening for fixing the grinding sand paper 2.
As shown in fig. 2, the fan-shaped abrasive sand paper 2 is made by a sand paper template 6, a fan-shaped cutting guide groove 7 is arranged on the sand paper template 6, the abrasive sand paper 2 is cut into a fan shape by utilizing the guiding function of the cutting guide groove 7, so that the subsequent winding into the funnel-shaped abrasive sand paper 2 is facilitated, and the abrasive sand paper 2 can be tightly attached to the conical end face of the grinding shaft 3 in the grinding process.
The middle position of the conical end face on the grinding shaft 3 is provided with a threaded hole, the threaded hole coincides with the center of the middle opening of the grinding sand paper 2, the screw 1 can be screwed into the threaded hole, and the grinding sand paper 2 is fixedly arranged on the conical end face of the grinding shaft 3 through a flange on the screw 1.
When the grinding shaft 3 is installed in place, the screw 1 is located in the oil hole 9 of the cylinder sleeve, the screw 1 is in clearance fit with the oil hole 9, and the installation hole 8 at the same position on the cylinder sleeve is communicated with the oil hole 9, so that the screw 1 can realize the fixation of the grinding sand paper 2 and simultaneously ensure that the screw 1 rotates in the oil hole 9 to prevent the grinding work affecting the conical end face of the grinding shaft 3.
It should be noted that the flange part of the screw 1 is in small clearance fit with the connecting transition section part of the mounting hole 8 and the oil filling hole 9 on the cylinder sleeve, so as to ensure that the grinding sand paper 2 can be completely contacted with the conical end surface in the mounting hole 8, and ensure the grinding effect.
The grinding sand paper 2 can be replaced according to actual requirements, so that the mesh number of the grinding sand paper 2 meets the actual grinding requirements, and the surface roughness of the conical end face in the mounting hole 8 is ensured to meet the design requirements.
As shown in fig. 3, the grinding shaft 3 has a stepped shaft structure and is divided into a grinding part, a limiting part and a rotating part, wherein one end of the grinding part is a conical end surface and is used for grinding a conical mounting surface in the mounting hole 8, the other end of the grinding part is fixedly connected with the limiting part, and one end of the limiting part, which is far away from the grinding part, is fixedly connected with the rotating part.
Wherein, because in order to avoid grinding the wearing and tearing of axle 3 to mounting hole 8 lateral wall, the whole diameter of grinding axle 3 is less than mounting hole 8, the problem that sways probably appears in the grinding process, consequently, the cover is equipped with bush 5 on spacing portion, be equipped with the bolt hole of relative setting on the bush 5, the bolt hole on the bush 5 sets up with the bolt hole of mounting hole 8 both sides is coaxial, utilize the bolt with the fixed setting of bush 5 on the lateral wall of cylinder jacket, thereby the position of restriction spacing portion, and then realize grinding the restriction of axle 3 overall position, in order to prevent grinding the problem that sways that the in-process appears in the axle 3 rotation.
Specifically, the length of grinding portion is less than the degree of depth of mounting hole 8, and the diameter of grinding portion is greater than the diameter of spacing portion, from the grinding portion to the direction of rotating the portion on, the cover is equipped with bush 5 on the spacing portion, bush 5 and spacing portion little clearance fit to avoid bush 5 to spacing portion pivoted influence, can fix a position spacing portion simultaneously.
The bushing 5 is of a boss structure, the protruding part of the bushing 5 is inserted into the mounting hole 8, the outer diameter of the protruding part is in small clearance fit with the mounting hole 8 of the cylinder liner grease gun so as to avoid abrasion of the mounting hole 8 caused by the bushing 5, and the bushing 5, the grinding shaft 3 and the mounting hole 8 on the cylinder liner are in small clearance fit, so that the influence on the rotation of the grinding shaft 3 and the abrasion on the mounting hole 8 can be avoided, the bushing can ensure the axial positioning of the grinding shaft, the center of the grinding shaft is consistent with the center of the conical mounting surface in the mounting hole, the grinding angle is unchanged, and the grinding angle of the conical mounting surface is ensured to meet the requirements;
the distance sleeve 4 is of a lantern ring structure with a set length, the inner ring of the distance sleeve 4 is in clearance fit with the limiting part, the outer ring of the distance sleeve 4 is in clearance fit with the mounting hole 8, and the distance sleeve is used for connecting the grinding shaft 3 and the bushing 5 in the axial direction.
The distance sleeve 4 is mainly used for detecting a conical mounting surface in the mounting hole 8, colored grease is required to be smeared on the conical end surface of the grinding shaft 3 during detection and is contacted with the conical mounting surface in the mounting hole 8, the grinding effect is judged through coloring, and because the manual pressing is difficult to control, the conical end surface of the grinding shaft 3 and the conical mounting surface in the mounting hole 8 are easy to excessively squeeze, so that the coloring effect is influenced, the distance sleeve 4 is arranged, the grinding shaft 3 is connected with the bushing 5 through the distance sleeve 4, and proper pressure is given to the grinding shaft 3 through the cooperation of the distance sleeve 4 and the bushing 5, so that excessive extrusion of the contact surface is ensured.
It will be appreciated that the length of the distance sleeve 4 should be such that when the grinding tool is fully installed in place, the two ends of the distance sleeve 4 will be in contact with the adjacent grinding portion and the bushing 5, respectively, and the tapered end surface of the grinding shaft 3 will just be in contact with the tapered mounting surface in the mounting hole 8, the specific length being not so limited.
The diameter of the rotating part is smaller than that of the limiting part, and the rotating part extends out of the mounting hole 8 and is used for being connected with an electric hand drill, so that the whole rotation of the grinding shaft 3 is realized under the drive of the electric hand drill, and the conical mounting surface in the mounting hole 8 is ground.
Example 2
In another exemplary embodiment of the present invention, a polishing method is provided, using the polishing tool described in example 1, specifically:
step 1: manufacturing a sector-shaped abrasive sand paper 2 according to the sand paper template 6, and rolling the sector-shaped abrasive sand paper 2 into a funnel shape;
wherein, the grinding sand paper 2 needs to be prepared into two types of rough grinding and fine grinding;
step 2: the funnel-shaped grinding sand paper 2 is fixed on the conical end face of the grinding shaft 3 through the screw 1, and the bushing 5 is coated with grease for lubrication and then sleeved on the limiting part of the grinding shaft 3;
step 3: inserting an abrasive tool into a mounting hole 8 of a cylinder liner cylinder grease gun, mounting a connecting bolt, fixing a bushing 5 onto a cylinder liner, clamping the end part of a rotating part of an abrasive shaft 3 by using an electric hand drill chuck, starting the electric hand drill, keeping abrasive paper 2 in contact with a conical mounting surface in the cylinder liner mounting hole 8, and grinding for 5 minutes;
step 4: removing the connecting bolt, removing the grinding tool, checking the conical mounting surface of the mounting hole 8 of the cylinder sleeve grease gun, and if the roughness meets the requirement, replacing fine grinding sand paper and grinding for 2 minutes; if the requirements are not met, grinding the materials according to the steps 1 and 2 by using coarse grinding sand paper continuously until the requirements are met, and replacing fine grinding sand paper;
step 5: after all grinding is finished, performing spot check on at least two grinding conical surfaces for checking;
the checking method comprises the following steps: applying a vivid colored grease (e.g., blue oil, red oil, etc.) on the tapered end face of the grinding section of the grinding shaft 3; a distance sleeve 4 is added between the grinding shaft 3 and the bushing 5, then the distance sleeve is installed in an installation hole 8 on a cylinder sleeve, the connecting bolts on the bushing 5 are symmetrically and uniformly tightened, the tightening torque is 10Nm, the grinding tool is left for one minute after being installed, then all components are removed, and the coloring condition of a conical installation surface in the installation hole 8 is checked, so that uniform color and continuous lines are required;
the cooperation of distance sleeve 4 and bush 5 is used, has guaranteed the moderate degree of grinding the pressure that axle 3 receives, has avoided grinding the excessive compaction of axle 3 and mounting surface of the interior cone of mounting hole 8, has guaranteed the accuracy of coloring detection.
Step 6: the mounting holes 8 on the cylinder liner grease gun are cleaned and blown clean using compressed air.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The grinding tool for the mounting hole of the cylinder sleeve grease gun is characterized by comprising a grinding shaft extending into the mounting hole of the cylinder sleeve, wherein one end of the grinding shaft, which is contacted with the end surface of the mounting hole, is a conical end surface, the other end of the grinding shaft is sleeved with a bushing with a boss structure, the bushing is fixedly arranged on the outer wall of the cylinder sleeve and used for limiting the swing of the grinding shaft and positioning the grinding shaft, grinding sand paper is fixedly arranged on the conical end surface, and one end of the grinding shaft, which is far away from the conical end surface, is fixedly connected with an electric hand drill;
the grinding shaft is of a stepped shaft structure and is divided into a grinding part, a limiting part and a rotating part, one end of the grinding part is a conical end face, the other end of the grinding part is fixedly connected with the limiting part, one end of the limiting part, which is far away from the grinding part, is fixedly connected with the rotating part, and the rotating part is connected with the electric hand drill;
when the grinding conical surface is inspected, a distance sleeve is arranged between the grinding shaft and the bushing, two ends of the distance sleeve are respectively contacted with the adjacent grinding part and the bushing, and the distance sleeve is used for axially connecting the grinding shaft and the bushing so as to provide pressure for enabling the conical end surface of the grinding shaft to be contacted with the conical mounting surface in the mounting hole.
2. The cylinder liner grease gun mounting hole grinding tool according to claim 1, wherein a threaded hole is provided in a middle position of the tapered end face of the grinding shaft, and the grinding sandpaper is fixedly provided on the tapered end face by a flange on the screw.
3. The cylinder liner grease gun mounting hole grinding tool of claim 2, wherein the screw is located in the grease hole of the cylinder liner, the screw being in clearance fit with the grease hole.
4. The cylinder liner grease gun mounting hole grinding tool of claim 1, wherein said abrasive sandpaper is a funnel-shaped structure formed from a fan-shaped sandpaper roll.
5. The cylinder liner grease gun mounting hole grinding tool of claim 1, wherein the length of the grinding portion is less than the depth of the mounting hole, the diameter of the grinding portion is greater than the diameter of the limiting portion, a bushing is sleeved on the limiting portion, and the bushing is in small clearance fit with the limiting portion.
6. The grinding tool for mounting holes of a cylinder liner grease gun according to claim 1, wherein the bushing is provided with oppositely arranged bolt holes, the bolt holes are fixedly arranged on the outer wall of the cylinder liner, the protruding part of the bushing is inserted into the mounting hole, and the protruding part is in small clearance fit with the mounting hole.
7. A grinding method, characterized by using the cylinder liner grease gun mounting hole grinding tool according to any one of claims 1 to 6, comprising the following specific steps:
step 1: manufacturing sector-shaped abrasive sand paper, and rolling the sector-shaped abrasive sand paper into a funnel shape, wherein the abrasive sand paper needs to be prepared into a coarse grinding type and a fine grinding type;
step 2: the funnel-shaped grinding sand paper is fixed on the conical end face of the grinding shaft through a screw, and the bushing is coated with grease for lubrication and then sleeved on the limiting part of the grinding shaft;
step 3: inserting an abrasive tool into a mounting hole of a cylinder liner cylinder grease gun, mounting a connecting bolt, fixing a bushing to a cylinder liner, clamping the end part of a grinding shaft rotating part by using an electric hand drill chuck, starting the electric hand drill, and keeping grinding sand paper in contact with a conical mounting surface in the cylinder liner mounting hole for grinding for 5 minutes;
step 4: removing the connecting bolt, removing the grinding tool, checking the conical mounting surface of the mounting hole, and if the roughness meets the requirement, replacing fine grinding sand paper and grinding for 2 minutes; if the requirements are not met, grinding the materials according to the steps 1 and 2 by using coarse grinding sand paper continuously until the requirements are met, and replacing fine grinding sand paper;
step 5: after all grinding is finished, performing spot check on at least two grinding conical surfaces for checking;
step 6: cleaning the mounting hole on the cylinder sleeve grease gun and blowing out by using compressed air.
8. The polishing method as recited in claim 7, wherein the inspection method of step 5 is: smearing oil with bright colors on the conical end face of the grinding shaft; and adding a distance sleeve between the grinding shaft and the bushing, then installing the distance sleeve into the installation hole, symmetrically and uniformly tightening the connecting bolts on the bushing, dismantling all components after the grinding tool is installed and stands for one minute, and checking the coloring condition of the conical installation surface in the installation hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210379104.2A CN114683144B (en) | 2022-04-12 | 2022-04-12 | Grinding tool and grinding method for mounting hole of cylinder sleeve grease gun |
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| CN202210379104.2A CN114683144B (en) | 2022-04-12 | 2022-04-12 | Grinding tool and grinding method for mounting hole of cylinder sleeve grease gun |
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| CN114683144B true CN114683144B (en) | 2023-06-16 |
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| GB374579A (en) * | 1931-04-28 | 1932-06-16 | John Alfred Scott | An improved method and means for internal grinding and like operations |
| WO1998045566A1 (en) * | 1997-04-03 | 1998-10-15 | Dorma Gmbh + Co. Kg | Clamping fitting for securing glass panes |
| CN202846188U (en) * | 2012-09-13 | 2013-04-03 | 宝山钢铁股份有限公司 | Fixture for thin-wall case processing |
| CN105618869A (en) * | 2014-11-04 | 2016-06-01 | 邓克娅 | Expansion type inner hole positioning tool for gear grinding machine |
| CN204610838U (en) * | 2015-04-27 | 2015-09-02 | 浙江威肯特泵业有限公司 | A kind of mechanical seal device |
| CN205002722U (en) * | 2015-09-25 | 2016-01-27 | 一汽通用红塔云南汽车制造有限公司 | Utensil is tested in special use of sealed face of awl in pipe fitting tip |
| CN210024938U (en) * | 2019-04-04 | 2020-02-07 | 昆山圣进威精密机械有限公司 | Grinding machine |
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| CN114683144A (en) | 2022-07-01 |
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Address after: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Applicant after: China Shipbuilding Industry Corporation Diesel ENGINE Co.,Ltd. Address before: 266520 No. 501 Lijiang East Road, Huangdao District, Qingdao, Shandong Applicant before: CHINA SHIPBUILDING INDUSTRY CORPORATION DIESEL ENGINE Co.,Ltd. |
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