CN114147546A - Manual grinding method for blind hole of hydraulic pump rotor - Google Patents
Manual grinding method for blind hole of hydraulic pump rotor Download PDFInfo
- Publication number
- CN114147546A CN114147546A CN202111216914.8A CN202111216914A CN114147546A CN 114147546 A CN114147546 A CN 114147546A CN 202111216914 A CN202111216914 A CN 202111216914A CN 114147546 A CN114147546 A CN 114147546A
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- grinding
- hydraulic pump
- pump rotor
- blind hole
- rod
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- 238000000227 grinding Methods 0.000 title claims abstract description 115
- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000003754 machining Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/11—Lapping tools
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Grinding Of Cylindrical And Plane Surfaces (AREA)
Abstract
The invention relates to the technical field of blind hole manual grinding, in particular to a method for manually grinding blind holes of a hydraulic pump rotor, which comprises the following steps: horizontally fixing a hydraulic pump rotor on a workbench; putting the grinding rod into the blind hole of the hydraulic pump rotor, manually rotating the grinding rod, and grinding from the bottom end of the blind hole of the hydraulic pump rotor; and (III) after the bottom end of the blind hole of the hydraulic pump rotor is ground, adjusting the position of a grinding rod, and grinding the upper part of the blind hole of the hydraulic pump rotor. According to the grinding rod and the grinding method provided by the invention, the problems that the grinding process is complicated, the grinding parts cannot be completely reached and the grinding efficiency is low in the original grinding method are solved, the adjusting screw sleeve and the adjusting screw thread are cancelled, the grinding rod with the taper is developed, the grinding method is improved, and the grinding efficiency and the grinding accessibility are improved.
Description
Technical Field
The invention relates to the technical field of blind hole manual grinding, in particular to a method for manually grinding blind holes of a hydraulic pump rotor.
Background
In the existing precision machining and repairing, after a boring and milling machine is generally adopted to machine a high-precision blind hole, a honing method is adopted to improve the machining precision, and for the requirement of micron precision, a grinding method is also adopted to ensure that the size and the surface precision of the blind hole meet the requirements. The existing grinding method and grinding tool adjust the size of the grinding sleeve by adjusting the position of the grinding sleeve through threads, and the total length of the blind hole is increased because the thread adjusting part occupies a certain length and space and a tool withdrawal groove with a certain length needs to be reserved at the bottom of the blind hole, so that the machining efficiency of a hydraulic pump can be seriously influenced in the machining of parts with limited total size, such as blind holes of an oil pump rotor hole and the like. As shown in fig. 1, the conventional grinding rod comprises a tapered rod body, an upper adjusting threaded sleeve, an upper bushing, a grinding sleeve, a lower bushing and a lower adjusting threaded sleeve, all parts are connected in series by the rod body, the main body playing a grinding role is the grinding sleeve, the position of the grinding sleeve on the rod body is changed by adjusting the upper adjusting threaded sleeve and the lower adjusting threaded sleeve to change the grinding size, wherein the total length of the lower bushing and the lower adjusting threaded sleeve is at least 8mm, the protruding amount of the lower tail part of the rod body is not considered, part of the bottom of a blind hole cannot be ground, and the grinding rod cannot be allowed in the processing of blind hole parts working in a full stroke.
Disclosure of Invention
In order to solve the technical problem, the invention provides a manual grinding method for blind holes of a hydraulic pump rotor.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a manual grinding method for blind holes of a hydraulic pump rotor comprises the following specific steps:
horizontally fixing a hydraulic pump rotor on a workbench;
putting the grinding rod into the blind hole of the hydraulic pump rotor, manually rotating the grinding rod, and grinding from the bottom end of the blind hole of the hydraulic pump rotor;
and (III) after the bottom end of the blind hole of the hydraulic pump rotor is ground, adjusting the position of a grinding rod, and grinding the upper part of the blind hole of the hydraulic pump rotor.
Preferably, the grinding rod comprises a rod body and a grinding sleeve sleeved on the rod body.
Preferably, the rod body is provided with a certain taper.
Preferably, the specific process of step (ii) is as follows:
(A) sleeving a grinding sleeve on one end of the rod body with taper, wherein the end part of the grinding sleeve extends out of the rod body for a certain distance, and placing the grinding sleeve at the bottom of a blind hole of a hydraulic pump rotor;
(B) the rod body is screwed by hand to drive the grinding sleeve to rotate at the bottom of the blind hole of the hydraulic pump rotor so as to grind the inner wall at the bottom of the blind hole of the hydraulic pump rotor;
(C) and repeatedly twisting the rod body until the inner wall of the bottom of the blind hole of the hydraulic pump rotor is ground.
Preferably, the specific process of step (three) is as follows:
(a) the position of the grinding sleeve on the rod body is adjusted upwards, and the grinding sleeve is contacted with the inner wall of the upper part of the blind hole of the hydraulic pump rotor;
(b) and repeatedly twisting the rod body by hand to drive the grinding sleeve to grind the inner wall of the upper part of the blind hole of the hydraulic pump rotor until the inner wall of the bottom of the blind hole of the hydraulic pump rotor is ground.
The invention has the beneficial effects that:
according to the grinding rod and the grinding method provided by the invention, the problems that the grinding process is complicated, the grinding parts cannot be completely reached and the grinding efficiency is low in the original grinding method are solved, the adjusting screw sleeve and the adjusting screw thread are cancelled, the grinding rod with the taper is developed, the grinding method is improved, and the grinding efficiency and the grinding accessibility are improved.
Drawings
The invention is further illustrated with reference to the following figures and examples:
FIG. 1 is a schematic view of a conventional grinding rod;
FIG. 2 is a schematic view of the improved grinding rod of the present invention;
FIG. 3 is a schematic view showing the state of use of the improved grinding rod of the present invention.
In the figure: 1. a rod body; 2. and (5) grinding the sleeve.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained in the following with the accompanying drawings and the embodiments.
A manual grinding method for blind holes of a hydraulic pump rotor comprises a grinding rod, as shown in figures 2 to 3, the grinding rod is composed of a rod body 1 and a grinding sleeve 2, wherein a certain taper is arranged on the rod body 1. Compare with current grinding rod: a standard grinding rod is cancelled, and a screw sleeve and a bushing are adjusted up and down; canceling adjusting threads on the rod body, and completely processing the rod body with a certain taper; the taper of the rod body is properly adjusted to reduce the moving force of the grinding sleeve on the rod body. Through the improvement, on one hand, the accessibility of the grinding sleeve is improved, the grinding working stroke can be increased, and the grinding sleeve can run in the full stroke of the blind hole, namely, the purpose of full-stroke grinding is achieved; on the other hand is convenient for adjust and grinds the position of cover on the body of rod, grinds the adjustment of cover external diameter size promptly, not only makes the cohesion of grinding the cover with the body of rod be greater than the frictional force of pore wall and grinding the cover, makes to grind the position of cover at the body of rod and be convenient for adjust again.
A manual grinding method for blind holes of a hydraulic pump rotor comprises the following specific steps:
the hydraulic pump rotor is fixed on the worktable according to the position of figure 3.
(II) will grind the cover 2 cover and be served at the tapered one of the body of rod 1, grind the head of cover 2 and expose the body of rod 1 certain distance, put into the hydraulic pump rotor hole with the body of rod 1 and grind the cover 2 together, grind the cover 2 and place in the blind hole bottom, begin to grind from the blind hole bottom.
And (III) the rod body 1 is screwed by hand, the rod body 1 drives the grinding sleeve 2 to rotate in the blind hole of the hydraulic pump rotor, the grinding sleeve 2 rubs with the inner wall of the blind hole in the rotating process, and the ground chips flow out along the guide groove of the grinding sleeve 2.
And (IV) repeatedly twisting the rod body 1 to achieve the purpose of fully grinding until the bottom end of the blind hole is ground.
(V) the position of the grinding sleeve 2 on the rod body 1 is adjusted upwards after the bottom end of the blind hole is ground, and the binding force between the grinding sleeve and the rod body is greater than the friction force between the hole wall and the grinding sleeve because the rod body 1 has a certain taper, so that the position of the grinding sleeve on the rod body is basically fixed, and the step (III) and the step (IV) are repeated to finish the grinding of the upper part of the blind hole.
According to the invention, by improving the grinding rod and using the improved grinding rod, the adjusting screw sleeve and the adjusting screw thread are cancelled, the grinding rod with the taper is developed, the grinding efficiency and the grinding accessibility are improved, and the improved grinding method can ensure the requirements of the size and the surface precision of the blind hole; the researched grinding method is reasonable, simple and efficient, can be used for grinding blind holes of similar products, and can solve the technical problems of the same type; the adopted grinding method and the grinding rod can ensure the requirements of the size and the surface precision of the blind hole, and the risk is controllable.
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, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. A manual grinding method for blind holes of a hydraulic pump rotor is characterized by comprising the following steps: the method comprises the following specific steps:
horizontally fixing a hydraulic pump rotor on a workbench;
putting the grinding rod into the blind hole of the hydraulic pump rotor, manually rotating the grinding rod, and grinding from the bottom end of the blind hole of the hydraulic pump rotor;
and (III) after the bottom end of the blind hole of the hydraulic pump rotor is ground, adjusting the position of a grinding rod, and grinding the upper part of the blind hole of the hydraulic pump rotor.
2. The manual grinding method for the blind hole of the hydraulic pump rotor as claimed in claim 1, wherein the method comprises the following steps: the grinding rod comprises a rod body (1) and a grinding sleeve (2) sleeved on the rod body (1).
3. The manual grinding method for the blind hole of the hydraulic pump rotor as claimed in claim 2, wherein the method comprises the following steps: the rod body (1) has a certain taper.
4. The manual grinding method for the blind hole of the hydraulic pump rotor as claimed in claim 3, wherein the method comprises the following steps: the specific process of the step (II) is as follows:
(A) sleeving a grinding sleeve (2) on one tapered end of a rod body (1), extending the end part of the grinding sleeve (2) out of the rod body (1) for a certain distance, and placing the grinding sleeve (2) at the bottom of a blind hole of a hydraulic pump rotor;
(B) the rod body (1) is screwed by hand to drive the grinding sleeve (2) to rotate at the bottom of the blind hole of the hydraulic pump rotor so as to grind the inner wall at the bottom of the blind hole of the hydraulic pump rotor;
(C) and repeatedly twisting the rod body (1) until the inner wall at the bottom of the blind hole of the hydraulic pump rotor is ground.
5. The manual grinding method for the blind hole of the hydraulic pump rotor as claimed in claim 4, wherein the method comprises the following steps: the specific process of the step (III) is as follows:
(a) the position of the grinding sleeve (2) on the rod body (1) is adjusted upwards, and the grinding sleeve (2) is contacted with the inner wall of the upper part of the blind hole of the hydraulic pump rotor;
(b) the rod body (1) is repeatedly screwed by hand to drive the grinding sleeve (2) to grind the inner wall of the upper part of the blind hole of the hydraulic pump rotor until the inner wall of the bottom of the blind hole of the hydraulic pump rotor is ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216914.8A CN114147546A (en) | 2021-10-19 | 2021-10-19 | Manual grinding method for blind hole of hydraulic pump rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111216914.8A CN114147546A (en) | 2021-10-19 | 2021-10-19 | Manual grinding method for blind hole of hydraulic pump rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114147546A true CN114147546A (en) | 2022-03-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111216914.8A Pending CN114147546A (en) | 2021-10-19 | 2021-10-19 | Manual grinding method for blind hole of hydraulic pump rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114147546A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1696280A1 (en) * | 1988-10-13 | 1991-12-07 | Уфимский авиационный институт им.Серго Орджоникидзе | Honing head for machining of blind holes |
| US6527620B1 (en) * | 1999-06-21 | 2003-03-04 | Sunnen Products Company | Honing tool used to finish blind bores in workpieces and the method of using such tool |
| JP3139239U (en) * | 2007-11-16 | 2008-02-07 | 柏園 ▲黄▼ | Ceramic sharpening rod |
| CN101450452A (en) * | 2007-11-30 | 2009-06-10 | 上海诺玛液压系统有限公司 | Grinding rod for processing valve cover inner-hole of electro-hydraulic servo valve |
| CN204976301U (en) * | 2015-06-01 | 2016-01-20 | 江苏耐尔特钻石有限公司 | Blind hole is honing pole for finish machining |
| CN209632748U (en) * | 2019-02-26 | 2019-11-15 | 成立航空技术有限公司 | A kind of accurate inner hole grinding rod of grinding |
| CN210099711U (en) * | 2019-07-03 | 2020-02-21 | 安徽多邦珩磨技术有限公司 | Blind hole honing reamer |
| CN112605749A (en) * | 2020-11-16 | 2021-04-06 | 中国航发西安动力控制科技有限公司 | Inner hole grinding device with two ends synchronously expanding and quantitatively adjusting |
-
2021
- 2021-10-19 CN CN202111216914.8A patent/CN114147546A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1696280A1 (en) * | 1988-10-13 | 1991-12-07 | Уфимский авиационный институт им.Серго Орджоникидзе | Honing head for machining of blind holes |
| US6527620B1 (en) * | 1999-06-21 | 2003-03-04 | Sunnen Products Company | Honing tool used to finish blind bores in workpieces and the method of using such tool |
| JP3139239U (en) * | 2007-11-16 | 2008-02-07 | 柏園 ▲黄▼ | Ceramic sharpening rod |
| CN101450452A (en) * | 2007-11-30 | 2009-06-10 | 上海诺玛液压系统有限公司 | Grinding rod for processing valve cover inner-hole of electro-hydraulic servo valve |
| CN204976301U (en) * | 2015-06-01 | 2016-01-20 | 江苏耐尔特钻石有限公司 | Blind hole is honing pole for finish machining |
| CN209632748U (en) * | 2019-02-26 | 2019-11-15 | 成立航空技术有限公司 | A kind of accurate inner hole grinding rod of grinding |
| CN210099711U (en) * | 2019-07-03 | 2020-02-21 | 安徽多邦珩磨技术有限公司 | Blind hole honing reamer |
| CN112605749A (en) * | 2020-11-16 | 2021-04-06 | 中国航发西安动力控制科技有限公司 | Inner hole grinding device with two ends synchronously expanding and quantitatively adjusting |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20220308 |