CN102581742A - Honing tool for finish-machining minor diameter holes of diesel engine - Google Patents
Honing tool for finish-machining minor diameter holes of diesel engine Download PDFInfo
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- CN102581742A CN102581742A CN2012100597403A CN201210059740A CN102581742A CN 102581742 A CN102581742 A CN 102581742A CN 2012100597403 A CN2012100597403 A CN 2012100597403A CN 201210059740 A CN201210059740 A CN 201210059740A CN 102581742 A CN102581742 A CN 102581742A
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- honing
- honing lever
- mandrel
- lever body
- hole
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Abstract
The invention discloses a honing tool for finish-machining minor diameter holes of a diesel engine, which comprises a honing rod body, a honing base and a honing rod mandrel, wherein the inner part of the honing rod body is a hollow structure, a mounting structure matched with a honing machine is arranged at the tail part of the honing rod body, a honing base mounting groove is arranged on the front side face of the honing rod body, the honing base is located in the mounting groove, the length of the front end of the honing rod mandrel extends to the position of the honing base mounting groove, a slope is arranged at the front end of the honing rod mandrel, a slope matched with the honing base is arranged on the inner surface of the honing base, the honing base and the honing rod mandrel are in slide fit, the back part of the honing rod mandrel stretches out of the honing rod body with certain length, an axial locating structure is arranged between the honing rod mandrel and the honing rod body, and a spring is installed between the tail part of the honing rod body and the tail part of the honing rod mandrel. The honing tool of the invention improves the processing precision, solves the problem of large dissipation, improves the processing efficiency, reduces the labor rate and reduces the cost; besides, the honing tool can be repeatedly used.
Description
Technical field
The present invention relates to the finishing tool technical field, particularly relate to the hone in a kind of fine finishining diesel engine path hole.
Background technology
Honing lever is along with the generation of automobile engine produces; Fast development along with Chinese heavy industry; And along with the raising of national emission request, diesel engine develops to the direction of high-power, low emission, and this just requires the precision of diesel injector and injection pump higher.Piston cylinder and plunger belong to the main structural components of engine, and it not only affects the wear condition of engine, and influence the oil level of engine consumes.
Plunger and plunger guide bush are the topmost precision components of diesel injection pump; Not only can control the size of fuel delivery; Can also control their circularity of height and the deviation from cylindrical form value of fuel efficiency and have only 0.001mm; Fit clearance has only 0.001-0.003mm, and at present used process technology mainly is to drill and ream behind the sleeve hole, utilizes the processing of liquid crush and grind technology.This technological working (machining) efficiency is lower, and the bore area that obtains at last is bright, causes the carbon after the machine oil burning to be stayed in the plunger hole, and the reciprocating motion of plunger makes carbon granule worn piston hole back and forth; And make that with the quality of fit of a collection of sleeve and plunger the qualification rate of form and position tolerance, hole tolerance and surface roughness in the plunger guide bush hole that processes at last is lower.
Summary of the invention
To the objective of the invention is in order addressing the above problem, the hone in a kind of fine finishining diesel engine path hole to be provided.
Technical scheme of the present invention is: the hone in a kind of fine finishining diesel engine path hole; Comprise honing lever body, honing pedestal, honing lever mandrel; It is characterized in that: said honing lever body interior is a hollow-core construction; Afterbody at the honing lever body is provided with the mounting structure that matees with honing machine, and the anterior side of described honing lever body is provided with honing pedestal mounting groove, and said honing pedestal is positioned at this mounting groove; The front end length of described honing lever mandrel arrives honing pedestal mounting groove position; The front end of honing lever mandrel be provided with slope described honing pedestal inner surface for the slope of its coupling, the slope in the honing pedestal is sitting in to form on the slope of front end of honing core shaft and is slidingly matched, honing lever body exterior one segment length is stretched out at described honing lever mandrel rear portion; Between honing lever mandrel and honing lever body, be provided with axial location structure, between the afterbody of described honing lever body afterbody and honing lever mandrel spring be installed.
Described location structure comprise the axial oval pilot hole that is arranged on the honing lever mandrel, be arranged on the pin-and-hole of honing lever body afterbody and be installed in above-mentioned pilot hole and pin-and-hole in pin.
The afterbody of described honing lever mandrel is provided with jump ring, and described spring housing is contained in honing lever mandrel afterbody, and spring one end withstands on the jump ring, and the other end withstands on the afterbody of honing lever body.
The mounting structure of described honing lever body afterbody comprises keyway and fixedly uses the inclined-plane.
Described honing lever body comprises bar portion and shank, and bar portion is the carbide alloy material, and shank is the GCr15 material, and bar portion is that pyrocondensation is connected with shank.
Described honing lever body portion outer surface has a plurality of and platform axially parallel, also has two gib block grooves with axially parallel, installation carbide alloy gib block in gathering sill.
Beneficial effect of the present invention
Use the honing lever of this invention to come the plunger guide bush hole of processing diesel engine, solved former difficult processing to satisfy the form and position tolerance that requires on the processing technology and the phenomenon of dimensional tolerance; Problems such as it is very fast to solve present existing plunger wear, and consumption of lubricating oil is many; Replace the artificial sleeve hole to improve working (machining) efficiency with honing machine simultaneously; Alleviated the hand labor rate, reduced the cost of diesel engine manufacturer, and the present invention can reuse; Only need to change honing pedestal and hone stone after the hone stone wearing and tearing, need not a whole set of duplication of production.
The honing lever of this invention converts the axially-movable of mandrel the radial motion of honing pedestal to through the conical surface, the radial feeds of control honing pedestal that can be reliable and stable, and use simple in structure, reliability is high.
In the anterior forward outer surface of honing lever body a plurality of and platform axially parallel are arranged, also have two gib block grooves with axially parallel, so just can between processed hole and this honing lever body, form chip area.Be beneficial to chip removal.
Description of drawings
Fig. 1 is the axial section structural representation of the hone in this fine finishining diesel engine path hole;
Fig. 2 is the A-A cross section structure sketch map of Fig. 1;
Fig. 3 is the main TV structure sketch map of the honing lever body among Fig. 1;
Fig. 4 is the plan structure sketch map of Fig. 3;
Fig. 5 is the A-A cross section structure sketch map of Fig. 4;
Fig. 6 be the honing lever mandrel main TV structure sketch map;
Fig. 7 is the plan structure sketch map of Fig. 6;
1. honing lever bodies among the figure, 2. the honing lever mandrel, 3. the honing pedestal, 4. jump ring, 5. spring, 6. pin, 7. gib block, wherein bar portion, the shank of 1-2. honing lever body, 1-3. honing pedestal mounting groove, 1-4. gib block groove, 1-5. platform, the 1-6. of 1-1. honing lever body are fixing with inclined-plane, 1-7. pin-and-hole, 1-8. keyway, the 2-1. conical surface, the long pilot hole of 2-2..
The specific embodiment
Embodiment: referring to Fig. 1-7; The hone in a kind of fine finishining diesel engine path hole among the figure; Comprise honing lever body, honing pedestal, honing lever mandrel, it is characterized in that: said honing lever body interior is a hollow-core construction, is provided with the mounting structure with the honing machine coupling at the afterbody of honing lever body; The anterior side of described honing lever body is provided with honing pedestal mounting groove; Said honing pedestal is positioned at this mounting groove, and the front end length of described honing lever mandrel arrives honing pedestal mounting groove position, the front end of honing lever mandrel be provided with slope described honing pedestal inner surface for the slope of its coupling; Slope in the honing pedestal is sitting in to form on the slope of front end of honing core shaft and is slidingly matched; Honing lever body exterior one segment length is stretched out at described honing lever mandrel rear portion, between honing lever mandrel and honing lever body, is provided with axial location structure, between the afterbody of described honing lever body afterbody and honing lever mandrel spring is installed.Described location structure comprise the axial oval pilot hole that is arranged on the honing lever mandrel, be arranged on the pin-and-hole of honing lever body afterbody and be installed in above-mentioned pilot hole and pin-and-hole in pin.The afterbody of described honing lever mandrel is provided with jump ring, and described spring housing is contained in honing lever mandrel afterbody, and spring one end withstands on the jump ring, and the other end withstands on the afterbody of honing lever body.The mounting structure of described honing lever body afterbody comprises keyway and fixedly uses the inclined-plane.Described honing lever body comprises bar portion and shank, and bar portion is the carbide alloy material, and shank is the GCr15 material, and bar portion is that pyrocondensation is connected with shank.Described honing lever body portion outer surface has a plurality of and platform axially parallel, also has two gib block grooves with axially parallel, installation carbide alloy gib block in gathering sill.
The course of work of this honing lever:
Shank with this honing lever during use is contained on the honing machine, and with honing machine endoporus matched in clearance, keyway is connected the fixing honing lever that drives and rotatablely moves with the honing switch, and jackscrew compresses fixing with on the inclined-plane on the honing lever body, plays further fixation.
After honing pedestal wearing and tearing, can only change the honing pedestal, honing lever body and honing core shaft can recycle, and save raw material, raising honing lever service life.
Honing machine relies on servo control mechanism to promote the honing lever mandrel and moves axially, and honing lever mandrel head front end has the inclined-plane, the slope coupling of this inclined-plane and honing pedestal inner surface.The honing lever mandrel moves axially, and relies on the slope of the mobile promotion honing pedestal on its slope, accomplishes the radial feed of honing lever thus.Honing machine relies on the keyway on the honing lever to drive honing lever around axis rotation.
The radially harmomegathus motion of honing pedestal, when the increase of the honing core shaft amount of feeding, the big production efficiency of stock removal is just high more, but roughness meeting variation; When the honing end, spring pressure reduces, and moves on the honing core shaft and gives up the throne, and spring forces honing core shaft inwardly to be retreated, and the effect of being stressed of honing pedestal is shunk, and can not scratch hole wall in the honing lever return course.
The honing lever head is not cylindric; A plurality of planes are arranged on cylinder, the carbide alloy gib block is arranged simultaneously, in Grinding Process; The honing layer as thin as a wafer; The groove that the plane forms during rotation has made things convenient for chip removal and Integrated Chip, avoids the influence of smear metal to crudy, and the carbide alloy gib block not only play the guiding role but also play a supporting role simultaneously.
Claims (6)
1. the hone in a fine finishining diesel engine path hole; Comprise honing lever body, honing pedestal, honing lever mandrel; It is characterized in that: said honing lever body interior is a hollow-core construction; Afterbody at the honing lever body is provided with the mounting structure that matees with honing machine, and the anterior side of described honing lever body is provided with honing pedestal mounting groove, and said honing pedestal is positioned at this mounting groove; The front end length of described honing lever mandrel arrives honing pedestal mounting groove position; The front end of honing lever mandrel be provided with slope described honing pedestal inner surface for the slope of its coupling, the slope in the honing pedestal is sitting in to form on the slope of front end of honing core shaft and is slidingly matched, honing lever body exterior one segment length is stretched out at described honing lever mandrel rear portion; Between honing lever mandrel and honing lever body, be provided with axial location structure, between the afterbody of described honing lever body afterbody and honing lever mandrel spring be installed.
2. the hone in fine finishining diesel engine path according to claim 1 hole is characterized in that: described location structure comprise the axial oval pilot hole that is arranged on the honing lever mandrel, be arranged on the pin-and-hole of honing lever body afterbody and be installed in above-mentioned pilot hole and pin-and-hole in pin.
3. the hone in fine finishining diesel engine path according to claim 1 hole; It is characterized in that: the afterbody of described honing lever mandrel is provided with jump ring; Described spring housing is contained in honing lever mandrel afterbody, and spring one end withstands on the jump ring, and the other end withstands on the afterbody of honing lever body.
4. the hone in fine finishining diesel engine path according to claim 1 hole is characterized in that: the mounting structure of described honing lever body afterbody comprises keyway and fixedly uses the inclined-plane.
5. the hone in fine finishining diesel engine path according to claim 1 hole, it is characterized in that: described honing lever body comprises bar portion and shank, and bar portion is the carbide alloy material, and shank is the GCr15 material, and bar portion is that pyrocondensation is connected with shank.
6. the hone in fine finishining diesel engine path according to claim 1 hole; It is characterized in that: described honing lever body portion outer surface has a plurality of and platform axially parallel; Also have two gib block grooves with axially parallel, installation carbide alloy gib block in gathering sill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100597403A CN102581742A (en) | 2012-03-08 | 2012-03-08 | Honing tool for finish-machining minor diameter holes of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100597403A CN102581742A (en) | 2012-03-08 | 2012-03-08 | Honing tool for finish-machining minor diameter holes of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102581742A true CN102581742A (en) | 2012-07-18 |
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ID=46471269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100597403A Pending CN102581742A (en) | 2012-03-08 | 2012-03-08 | Honing tool for finish-machining minor diameter holes of diesel engine |
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| Country | Link |
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| CN (1) | CN102581742A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471576A (en) * | 1982-11-15 | 1984-09-18 | Ex-Cell-O Corporation | Abrasive tool for small diameter hole machining |
| US20030194957A1 (en) * | 2002-04-16 | 2003-10-16 | Diesel Technology Company | Diamond sleeve honing tool |
| DE202006015687U1 (en) * | 2006-10-10 | 2006-12-21 | Gehring Gmbh & Co. Kg | Honing tool comprises an adjustment element with an adjustment surface in contact with the adjustment surface of the adjustment bar for a supported radial expansion of the tool body |
| CN102189479A (en) * | 2010-03-09 | 2011-09-21 | 卡迪尔生产有限责任公司 | Honing tool |
| CN102284898A (en) * | 2011-09-18 | 2011-12-21 | 吉林汽车制动器厂 | Serrated sliding type automatic telescopic honing head |
| CN202640117U (en) * | 2012-03-08 | 2013-01-02 | 郑州市钻石精密制造有限公司 | Honing tool for finish-machining minor diameter holes of diesel engine |
-
2012
- 2012-03-08 CN CN2012100597403A patent/CN102581742A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4471576A (en) * | 1982-11-15 | 1984-09-18 | Ex-Cell-O Corporation | Abrasive tool for small diameter hole machining |
| US20030194957A1 (en) * | 2002-04-16 | 2003-10-16 | Diesel Technology Company | Diamond sleeve honing tool |
| DE202006015687U1 (en) * | 2006-10-10 | 2006-12-21 | Gehring Gmbh & Co. Kg | Honing tool comprises an adjustment element with an adjustment surface in contact with the adjustment surface of the adjustment bar for a supported radial expansion of the tool body |
| CN102189479A (en) * | 2010-03-09 | 2011-09-21 | 卡迪尔生产有限责任公司 | Honing tool |
| CN102284898A (en) * | 2011-09-18 | 2011-12-21 | 吉林汽车制动器厂 | Serrated sliding type automatic telescopic honing head |
| CN202640117U (en) * | 2012-03-08 | 2013-01-02 | 郑州市钻石精密制造有限公司 | Honing tool for finish-machining minor diameter holes of diesel engine |
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Application publication date: 20120718 |