CN113021171A - Compound honing head for small hole - Google Patents
Compound honing head for small hole Download PDFInfo
- Publication number
- CN113021171A CN113021171A CN202110325877.8A CN202110325877A CN113021171A CN 113021171 A CN113021171 A CN 113021171A CN 202110325877 A CN202110325877 A CN 202110325877A CN 113021171 A CN113021171 A CN 113021171A
- Authority
- CN
- China
- Prior art keywords
- working section
- honing head
- grooves
- hole
- section
- 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.)
- Granted
Links
- 150000001875 compounds Chemical class 0.000 title claims description 9
- 239000002131 composite material Substances 0.000 claims abstract description 9
- 244000137852 Petrea volubilis Species 0.000 claims description 4
- 238000012545 processing Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 239000006061 abrasive grain Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Classifications
-
- 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
- B24B33/00—Honing machines or devices; Accessories therefor
- B24B33/08—Honing tools
-
- 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
- B24B41/007—Weight compensation; Temperature compensation; Vibration damping
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
本发明公开了一种小孔用复合珩磨头。所公开的珩磨头包括基体、多个橡胶条和砂纸；基体轴向依次设有夹持段、第二工作段和第一工作段，所述第一工作段侧壁上设有多条沿轴向开设的凹槽，且多条凹槽沿第一工作段的周向分布；各橡胶条设置在各凹槽中，且各橡胶条突出于所述第一工作段侧壁表面；砂纸包覆在所述第一工作段，且将所述多条橡胶条包裹；所述包裹有砂纸的第一工作段外形与待珩磨孔匹配；所述第二工作段的外形与所述待处理孔匹配或所述第二工作段的外径小于待处理孔的孔径；所述待珩磨孔内径小于
The invention discloses a composite honing head for small holes. The disclosed honing head includes a base body, a plurality of rubber strips and sandpaper; the base body is axially provided with a clamping section, a second working section and a first working section in sequence, and the side wall of the first working section is provided with a plurality of along the axis The grooves are opened in the direction of the first working section, and a plurality of grooves are distributed along the circumferential direction of the first working section; each rubber strip is arranged in each groove, and each rubber strip protrudes from the surface of the side wall of the first working section; sandpaper wraps In the first working section, the plurality of rubber strips are wrapped; the shape of the first working section wrapped with sandpaper matches the hole to be honed; the shape of the second working section matches the hole to be processed Or the outer diameter of the second working section is smaller than the hole diameter of the hole to be processed; the inner diameter of the hole to be honed is smaller than
Description
Technical Field
The invention relates to a honing head for machining, in particular to a composite honing head for small holes, which is particularly suitable for honing holes with the diameter smaller than that of the holes
Honing the small holes.
Background
The honing is a honing head with adjustable diameter, which is driven by a mechanical power head to do composite motion of opposite rotation and axial motion with the workpiece, and the abrasive grains on the honing strip are like numerous sharp knives to remove tiny allowance of the hole wall and improve the surface roughness to form a micro reticulate pattern. With the gradual expansion of the bore diameter to be processed, the diameter size of the honing head needs to be adjusted according to the measurement result, and the radial pressure and wear compensation required by honing are ensured. The honing head generally comprises a honing stick (made of oilstone or a honing brick), a honing stick telescopic mechanism, a honing rod and the like, wherein the diameter is adjusted by utilizing mechanical forces such as spring force, pneumatic force, hydraulic force or thread screwing force and the like through an automatic control or manual adjustment mode.
The honing strips on the honing head are mostly made of oilstones, the number of the honing strips is three, the number of the honing strips is four, six or even more, the manufacturing difficulty is high, the manufacturing cost is high, the replaceability is not strong after the honing strips are worn or damaged, the number of parts of the whole mechanism is large, the structure is complex, and the operation difficulty is high. Even if the spring pre-tightening force honing head with a relatively simple structure is adopted, the spring force is not well grasped, and the work load is multiplied because the spring needs to be measured and adjusted finely continuously. Particularly, for honing a small-diameter hole, a honing head with a smaller size and more precise linkage needs to be manufactured, so that the honing head is more difficult to realize and is very expensive.
Disclosure of Invention
Aiming at the defects or shortcomings of the prior art, the invention provides a composite honing head for small holes.
Therefore, the invention provides a compound honing head for small holes, which comprises:
the clamping device comprises a base body, wherein the base body is axially and sequentially provided with a clamping section, a second working section and a first working section, the side wall of the first working section is provided with a plurality of grooves which are formed along the axial direction, and the plurality of grooves are distributed along the circumferential direction of the first working section;
the rubber strips are arranged in the grooves, and each rubber strip or part of the rubber strips protrude out of the surface of the side wall of the first working section;
the sand paper is coated on the first working section and wraps the rubber strips;
the shape of the first working section wrapped with the abrasive paper is matched with the hole to be honed; the shape of the second working section is matched with the hole to be processed or the outer diameter of the second working section is smaller than the aperture of the hole to be processed; the inner diameter of the hole to be honed is less than
Further, the first working section is cylindrical.
Further, the second working section is cylindrical.
Further, the outer diameter of the second working section is smaller than the outer diameter of the first working section.
Further, the outer diameter of the clamping section is larger than the outer diameter of the first working section or the outer diameter of the second working section.
Further, the cross section of the groove is circular.
Further, the rubber strip is arranged in the groove, and a gap is reserved between the rubber strip and the inner wall of the groove.
Optionally, the rubber strip protrudes 0.4-0.6mm from the surface of the side wall of the first working section.
Furthermore, the base body is provided with a containing and cutting groove which is positioned at one end or two ends of the plurality of grooves in the axial direction and is communicated with each groove.
Furthermore, a guide head is arranged at the end part of the first working section, and the outer surface of the head to be guided is a conical cylindrical surface.
The invention adopts rubber with excellent elasticity, thermal stability and wear resistance, such as aviation rubber, as a honing support material, sand paper with different particle sizes is wrapped outside, and when honing or grinding, the rubber strips uniformly distributed on the circumference of a honing head substrate provide continuous radial pressure and grinding compensation for the sand paper, so that the purpose of finishing within the range of 0.02 lower amount can be achieved by only intermittently measuring the size and adding grinding paste without adjusting the honing head.
The honing head of the invention can be used for mechanical honing and is also suitable for manual grinding; and when the honing tool is used, one honing head replaces 3-4 conventional cast iron grinding rods, so that the honing tool is more efficient and lower in cost.
The honing head can be used for finishing small holes with 5-level precision below phi 12 and even higher precision, and has a wider application range.
Drawings
Fig. 1 is a schematic structural view of a honing head according to the present invention;
fig. 2 is a schematic view of an end structure of the honing head according to the present invention;
fig. 3 is an example of a honing head according to the invention;
fig. 4 is an example of a process of using the honing head of the present invention;
figure 5 is an example of a part to be honed of an embodiment.
Detailed Description
Unless otherwise indicated, the terms or methods herein are understood or implemented using methods well known to those of ordinary skill in the relevant art.
The axial, radial, circumferential, end, etc. directional or orientational terms described herein correspond to the corresponding directions or orientations in the drawings; wherein axial direction is also understood to be the axial direction of the hole to be treated or honed. It should be noted that the directions shown in the drawings are only for illustrating the present invention and are not meant to limit the present invention, and those skilled in the art can make rotation, adjustment, and changes based on the concept of the present invention within the protection scope of the present invention.
Example (b):
as shown in fig. 1 and 2, the honing head of the present invention comprises a base, a plurality of rubber strips and sandpaper, wherein the base is sequentially provided with a holding section 1, a second working section 2 and a first working section 3 along an axial direction, a plurality of grooves 6 formed along the axial direction are formed on a sidewall of the first working section 3, the plurality of grooves are distributed along a circumferential direction of the first working section, a plurality of rubber strips 7 are respectively arranged in each groove 6 along the axial direction, each rubber strip or a part of the individual rubber strip protrudes out of a sidewall surface of the first working section, a protruding amount (i.e. a radial protruding dimension) can be selected from 0.4 to 0.6mm, and an example of fig. 2 has a protruding amount of 0.4 to 0.5mm, so as to ensure a sufficient rubber pressure; the abrasive paper parcel is outside first working segment, wraps up a plurality of rubber strips simultaneously, and the appearance of the first working segment of parcel abrasive paper and second working segment 2 matches with the pass and the size of treating the honing hole like this, and these two part structures can go deep into to treat the honing hole promptly to rotatable and along the axial activity of making a round trip, the shape and the size of centre gripping section do not do the restriction, the operation of facilitating the use can.
In some embodiments, the first working section or/and the second working section is cylindrical in shape.
When the honing head is used, the honing head is held by hand or clamped on a main shaft of a machine tool (horizontal or vertical), the honing head is screwed into a hole to be processed after centering, as shown in figure 4, the honing head performs cross composite finishing processing on the hole wall while performing axial rotation and axial pulling motion, so that the aims of removing microscopic high points, correcting cylindricity, improving surface smoothness, forming a tiny oil storage mesh surface and improving the lubricating performance of parts during working are fulfilled.
In other embodiments, the base body is further provided with two shaving-receiving grooves 4, as shown in fig. 1 and 2, and the two shaving-receiving grooves 4 are respectively located at two ends of the first working section and are communicated with the grooves.
In the scheme, a guide head 5 is arranged at the end part of the first working section on the base body, so that the honing operation is convenient, and the guide head is conical in shape.
In a preferred embodiment, the cross-sectional shape of the groove is circular in view of machining and assembly. Furthermore, after each rubber strip is arranged in the corresponding groove, a gap is reserved in the groove so as to meet the expansion requirement of the rubber strips in the working process.
In consideration of the firmness of the sandpaper, in a specific scheme, the sandpaper can be fixed by using quick-adhesion glue, and the object is shown in fig. 3.
In a preferred scheme, the base material of the invention can be selected from materials with excellent and proper texture, such as high-phosphorus cast iron or high-quality carbon steel rods; and when the matrix is processed, the coaxiality of the excircles needs to be ensured within a required range, and 4-6 uniformly distributed adhesive tape mounting holes are axially processed as shown in figures 1 and 2; and when the uniformly distributed axial holes are processed, the diameter of the reference circle needs to be ensured within the tolerance requirement range.
Finishing the 5-level precision hole of the high-precision gear pump shown in the figure 5 by using the honing head of the invention, wherein the hole diameter of each hole to be honed and the honing result are shown in table 1 (the measurement data shown in the table are detected by related standard methods in the field); the use of the honing head saves the workload of adjusting, measuring, replacing and the like of the conventional honing head, the efficiency is improved by at least 2 times, the dimensional precision, the cylindricity and the surface roughness all meet the requirements, and the qualification rate reaches 100 percent; the "actual time" in the table means the time required for every removal of Φ 0.002 of the inner diameter using the tool.
TABLE 1 actual measurement data Table
Claims (10)
1. The utility model provides a compound honing head is used to aperture which characterized in that includes:
the clamping device comprises a base body, wherein the base body is axially and sequentially provided with a clamping section, a second working section and a first working section, the side wall of the first working section is provided with a plurality of grooves which are formed along the axial direction, and the plurality of grooves are distributed along the circumferential direction of the first working section;
the rubber strips are arranged in the grooves, and each rubber strip or part of the rubber strips protrude out of the surface of the side wall of the first working section;
the sand paper is coated on the first working section and wraps the rubber strips;
the shape of the first working section wrapped with the abrasive paper is matched with the hole to be honed; the shape of the second working section is matched with the hole to be processed or the outer diameter of the second working section is smaller than the aperture of the hole to be processed; the inner diameter of the hole to be honed is less than
2. The aperture composite honing head according to claim 1 wherein said first working section is cylindrical.
3. The aperture composite honing head according to claim 1 wherein said second working section is cylindrical.
4. The compound honing head for small holes of claim 1, wherein the second working section has an outer diameter smaller than that of the first working section.
5. The compound honing head for small holes of claim 1, wherein the outer diameter of said holding section is larger than the outer diameter of said first working section or the outer diameter of said second working section.
6. The compound honing head for small holes of claim 1, wherein said grooves are circular in cross-section.
7. The composite honing head for small holes according to claim 1 or 6, wherein the rubber strip is disposed in the groove with a gap left between the rubber strip and the inner wall of the groove.
8. The compound honing head for small holes of claim 1, wherein said rubber strip protrudes from the sidewall surface of said first working segment by 0.4 to 0.6 mm.
9. The composite honing head for small holes according to claim 1, wherein the base body is provided with a plurality of grooves, and the grooves are located at one or both axial ends of the plurality of grooves and are communicated with the grooves.
10. The compound honing head for small holes as claimed in claim 1, wherein the first working segment is provided at an end thereof with a guiding head, and an outer surface of the guiding head is a tapered cylindrical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110325877.8A CN113021171B (en) | 2021-03-26 | 2021-03-26 | Compound honing head for small hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110325877.8A CN113021171B (en) | 2021-03-26 | 2021-03-26 | Compound honing head for small hole |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113021171A true CN113021171A (en) | 2021-06-25 |
| CN113021171B CN113021171B (en) | 2022-09-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110325877.8A Active CN113021171B (en) | 2021-03-26 | 2021-03-26 | Compound honing head for small hole |
Country Status (1)
| Country | Link |
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| CN (1) | CN113021171B (en) |
Citations (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB533972A (en) * | 1938-10-03 | 1941-02-25 | Norton Co | Improvements in or relating to abrading machines |
| DD275838A1 (en) * | 1988-09-30 | 1990-02-07 | Schwermasch Liebknecht Veb K | PRAZZIONENZIEHSCHLEIFKOPF FOR HIGH-ACCURACY INTERIOR MACHINING SMALL HOLES |
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| CN210209739U (en) * | 2019-07-04 | 2020-03-31 | 上海金茂建筑装饰有限公司 | Indoor decoration device |
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- 2021-03-26 CN CN202110325877.8A patent/CN113021171B/en active Active
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| Publication number | Publication date |
|---|---|
| CN113021171B (en) | 2022-09-13 |
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