CN215357396U - Diesel engine cylinder head inclined hole processing frock - Google Patents
Diesel engine cylinder head inclined hole processing frock Download PDFInfo
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- CN215357396U CN215357396U CN202121510945.XU CN202121510945U CN215357396U CN 215357396 U CN215357396 U CN 215357396U CN 202121510945 U CN202121510945 U CN 202121510945U CN 215357396 U CN215357396 U CN 215357396U
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- 230000007246 mechanism Effects 0.000 claims abstract description 23
- 238000003754 machining Methods 0.000 claims abstract description 16
- 238000004880 explosion Methods 0.000 claims abstract description 6
- 230000006835 compression Effects 0.000 abstract description 2
- 238000007906 compression Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 1
- 208000010727 head pressing Diseases 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000000844 transformation Methods 0.000 description 1
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Abstract
The utility model discloses a diesel engine cylinder cover inclined hole machining tool which comprises a base, a cylinder cover positioning mechanism and a plurality of cylinder cover pressing mechanisms, wherein the cylinder cover positioning mechanism comprises a base and a plurality of cylinder cover pressing mechanisms; the base comprises a bottom plate, an inclined plate and a plurality of rib plates; the cylinder cover positioning mechanism comprises a plurality of positioning pins, a positioning plate and a puller bolt, wherein the positioning pins are fixed on one side of the inclined plate at intervals, the positioning plate is fixed in the middle of the other side of the inclined plate, and one end of the puller bolt penetrates through the upper end of the positioning plate and is propped against the explosion surface of the cylinder cover; the cylinder cover pressing mechanism comprises a supporting cylinder, two double-end studs and a pressing plate, wherein the supporting cylinder is vertically supported on the inclined plate, the lower end of one double-end stud is screwed on the supporting cylinder, the upper end of the double-end stud is screwed with the outer end of the pressing plate, the lower end of the other double-end stud is screwed and fixed on the inclined plate, and the upper end of the other double-end stud penetrates through the inner end of the pressing plate and is locked through a locking nut. The utility model has accurate positioning and stable and reliable compression, and can effectively ensure the processing quality of the cylinder cover. The processing can be carried out by one-time clamping and positioning, the processing efficiency is high, and the processing precision is also ensured.
Description
Technical Field
The utility model relates to a tool for machining inclined holes in parts, in particular to a tool for machining inclined holes in a cylinder cover of a diesel engine, and belongs to the technical field of tool fixtures.
Background
The cylinder cover is a key part of the diesel engine, and the processing quality of the cylinder cover directly influences the overall performance and the service life of the diesel engine. As shown in fig. 1 and 2, an inclined hole 20 is arranged on a cover surface of a cylinder head 10 of an L28/32 dual-fuel medium speed diesel engine, the inclined hole 20 directly penetrates through the cylinder head 10 to an explosion surface on the other side of the cylinder head 10 and is used for installing a power indicator valve for testing the maximum explosion pressure of the diesel engine during operation, the inclined hole 20 is a spatial position inclined hole, an included angle beta between a connecting line of the top surface center and the cylinder head cover surface center and a horizontal central line of the cylinder head cover surface is 24 degrees, and an included angle gamma between the axis of the inclined hole and the cylinder head cover surface is 53.5 degrees. At present, due to the fact that no special tool exists, the existing equipment cannot process the inclined hole.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a diesel engine cylinder cover inclined hole machining tool which is simple in structure, capable of quickly positioning a cylinder cover, accurate and reliable in positioning and high in machining efficiency.
The utility model is realized by the following technical scheme:
a diesel engine cylinder cover inclined hole processing tool comprises a base, a cylinder cover positioning mechanism and a plurality of cylinder cover pressing mechanisms; the base comprises a bottom plate, an inclined plate and a plurality of rib plates arranged between the bottom plate and the inclined plate, the included angle between the inclined plate and the bottom plate is alpha, and the cylinder cover is supported on the inclined plate; the cylinder cover positioning mechanism comprises a plurality of positioning pins, a positioning plate and a puller bolt, the positioning pins are fixed on one side of the inclined plate at intervals, two ends of the cover surface of the cylinder cover are respectively abutted against the positioning pins, the positioning plate is fixed in the middle of the other side of the inclined plate, and one end of the puller bolt penetrates through the upper end of the positioning plate and is abutted against the explosion surface of the cylinder cover; the plurality of cylinder cover pressing mechanisms are respectively arranged on two sides of the inclined plate, each cylinder cover pressing mechanism comprises a supporting cylinder, two double-end studs and a pressing plate, the supporting cylinders are vertically supported on the inclined plate, the lower end of one double-end stud is screwed on the supporting cylinder, the upper end of the double-end stud is screwed with the outer end of the pressing plate, the inner end of the pressing plate is pressed on the cylinder cover, the lower end of the other double-end stud is screwed and fixed on the inclined plate, and the upper end of the other double-end stud penetrates through the inner end of the pressing plate and is locked through a locking nut.
The object of the utility model is further achieved by the following technical measures.
According to the tool for processing the inclined hole of the cylinder cover of the diesel engine, the bottom plate, the inclined plate and the plurality of rib plates arranged between the bottom plate and the inclined plate are cast into an integral mechanism.
In the tool for processing the inclined hole of the cylinder cover of the diesel engine, an included angle α between the inclined plate and the bottom plate is equal to an included angle β between a connecting line between the top surface center of the inclined hole on the cylinder cover and the top surface center of the cylinder cover and a horizontal central line of the top surface of the cylinder cover.
According to the processing tool for the inclined hole of the cylinder cover of the diesel engine, the inner end of the pressure plate is provided with the waist-shaped groove, and the upper end of the other stud penetrates through the waist-shaped groove and is locked through the locking nut.
The cylinder cover positioning device is simple and compact in structure, low in cost, capable of quickly positioning the cylinder cover, accurate in positioning, stable and reliable in cylinder cover compression, and capable of effectively guaranteeing the machining quality of the cylinder cover. Because the included angle between the inclined plate and the bottom plate is equal to the included angle between the connecting line of the top surface center of the inclined hole on the cylinder cover and the center of the cover surface of the cylinder cover and the horizontal center line of the cover surface of the cylinder cover, the cylinder cover inclines by the same angle when clamping the cylinder cover, and the machine tool workbench drives the cylinder cover to rotate by a preset angle during machining, namely the included angle between the axis of the inclined hole and the cover surface of the cylinder cover, so that the axis of the inclined hole on the cylinder cover can be adjusted to be coincident with the axis of a machine tool spindle, the machining can be directly carried out by one-time clamping and positioning, and after a coordinate system is established by alignment during machining of a first cylinder cover, the coordinate system does not need to be established again during machining of other cylinder covers, so that the machining efficiency is high, and the machining precision is also guaranteed.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a head cover face of a dual fuel medium speed diesel engine cylinder head;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a schematic perspective view of the present invention;
fig. 4 is a schematic view of the structure of fig. 3 in the direction of B.
Detailed Description
The utility model is further illustrated by the following figures and examples.
As shown in fig. 3 and 4, the present invention includes a base 1, a cylinder head positioning mechanism 2, and three cylinder head pressing mechanisms 3. The base 1 is cast into an integral structure by a bottom plate 11, an inclined plate 12 and a plurality of rib plates 13 arranged between the bottom plate 11 and the inclined plate 12, an included angle between the inclined plate 12 and the bottom plate 11 is alpha, which is equal to an included angle beta between a connecting line of a top surface center of an inclined hole 20 on the cylinder cover 10 and a cover surface center of the cylinder cover and a horizontal center line of the cover surface of the cylinder cover, in the embodiment, alpha is 24 degrees, and the cylinder cover 10 is supported on the inclined plate 12. The cylinder cover positioning mechanism 2 comprises two positioning pins 21, a positioning plate 22 and a puller bolt 23, the two positioning pins 21 are fixed on one side of the inclined plate 12 at intervals, two ends of the cover surface of the cylinder cover support against the two positioning pins 21 respectively, the positioning plate 22 is L-shaped and fixed in the middle of the other side of the inclined plate 12 through a fastener, and one end of the puller bolt 23 penetrates through the upper end of the positioning plate 22 and is propped against the explosion surface of the cylinder cover. The three cylinder cover pressing mechanisms 3 are respectively arranged on two sides of the inclined plate 12, each cylinder cover pressing mechanism 3 comprises a supporting cylinder 31, two studs 32 and a pressing plate 33, the supporting cylinder 31 is vertically supported on the inclined plate 12, the lower end of one stud 32 is screwed on the supporting cylinder 31, the upper end of the stud 32 is screwed with the outer end of the pressing plate 33, the inner end of the pressing plate 33 is pressed on the cylinder cover 10, a waist-shaped groove 331 is arranged on the inner end of the pressing plate 33, the lower end of the other stud 32 is screwed and fixed on the inclined plate 12, and the upper end of the other stud passes through the waist-shaped groove 331 and is locked by a locking nut.
During machining, the cylinder cover 10 is fixed on a machine tool workbench through a fastener and a lower positioning pin 30, then the cylinder cover 10 is supported on an inclined plate 12 and is positioned and pressed tightly, at the moment, the cylinder cover 10 automatically inclines for 24 degrees, then the machine tool workbench rotates for 53.5 degrees, and the axis of an inclined hole in the cylinder cover 10 is overlapped with the axis of a main shaft of a machine tool to be machined.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a diesel engine cylinder head inclined hole processing frock which characterized in that: the device comprises a base, a cylinder cover positioning mechanism and a plurality of cylinder cover pressing mechanisms; the base comprises a bottom plate, an inclined plate and a plurality of rib plates arranged between the bottom plate and the inclined plate, the included angle between the inclined plate and the bottom plate is alpha, and the cylinder cover is supported on the inclined plate; the cylinder cover positioning mechanism comprises a plurality of positioning pins, a positioning plate and a puller bolt, the positioning pins are fixed on one side of the inclined plate at intervals, two ends of the cover surface of the cylinder cover are respectively abutted against the positioning pins, the positioning plate is fixed in the middle of the other side of the inclined plate, and one end of the puller bolt penetrates through the upper end of the positioning plate and is abutted against the explosion surface of the cylinder cover; the plurality of cylinder cover pressing mechanisms are respectively arranged on two sides of the inclined plate, each cylinder cover pressing mechanism comprises a supporting cylinder, two double-end studs and a pressing plate, the supporting cylinders are vertically supported on the inclined plate, the lower end of one double-end stud is screwed on the supporting cylinder, the upper end of the double-end stud is screwed with the outer end of the pressing plate, the inner end of the pressing plate is pressed on the cylinder cover, the lower end of the other double-end stud is screwed and fixed on the inclined plate, and the upper end of the other double-end stud penetrates through the inner end of the pressing plate and is locked through a locking nut.
2. The diesel engine cylinder head inclined hole machining tool of claim 1, characterized in that: the bottom plate, the inclined plate and the plurality of rib plates arranged between the bottom plate and the inclined plate are cast into an integral mechanism.
3. The diesel engine cylinder head inclined hole machining tool of claim 1, characterized in that: and the included angle alpha between the inclined plate and the bottom plate is equal to the included angle beta between the connecting line of the top surface center of the inclined hole on the cylinder cover and the center of the cover surface of the cylinder cover and the horizontal central line of the cover surface of the cylinder cover.
4. The diesel engine cylinder head inclined hole machining tool of claim 1, characterized in that: the inner end of the pressure plate is provided with a waist-shaped groove, and the upper end of the other stud penetrates through the waist-shaped groove and is locked by a locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121510945.XU CN215357396U (en) | 2021-07-05 | 2021-07-05 | Diesel engine cylinder head inclined hole processing frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121510945.XU CN215357396U (en) | 2021-07-05 | 2021-07-05 | Diesel engine cylinder head inclined hole processing frock |
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| Publication Number | Publication Date |
|---|---|
| CN215357396U true CN215357396U (en) | 2021-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121510945.XU Active CN215357396U (en) | 2021-07-05 | 2021-07-05 | Diesel engine cylinder head inclined hole processing frock |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115284051A (en) * | 2022-09-05 | 2022-11-04 | 上海中船三井造船柴油机有限公司 | Turnover tool and method for marine diesel engine cylinder cover |
-
2021
- 2021-07-05 CN CN202121510945.XU patent/CN215357396U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115284051A (en) * | 2022-09-05 | 2022-11-04 | 上海中船三井造船柴油机有限公司 | Turnover tool and method for marine diesel engine cylinder cover |
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