CN214443148U - Self-guiding boring cutter for main shaft hole of cylinder body - Google Patents
Self-guiding boring cutter for main shaft hole of cylinder body Download PDFInfo
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- CN214443148U CN214443148U CN202120431657.9U CN202120431657U CN214443148U CN 214443148 U CN214443148 U CN 214443148U CN 202120431657 U CN202120431657 U CN 202120431657U CN 214443148 U CN214443148 U CN 214443148U
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- main shaft
- cutter
- shaft hole
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Abstract
The utility model relates to a boring cutter technical field just discloses a cylinder block main shaft hole self guidance boring cutter, including cutter body, boring cutter, first bearing, second bearing, spacer, uide bushing and end cover. When the spindle hole is bored, the guide sleeve extends into the next gear of spindle hole to form a guide fixing effect, so that the vibration of a boring cutter caused by the fact that a boring rod for boring the spindle hole is excessively extended is prevented, the machining difficulty and the machining roughness of the spindle hole are reduced, and the machining precision is improved.
Description
Technical Field
The utility model relates to a boring cutter technical field specifically is a cylinder block main shaft hole self guidance boring cutter.
Background
The requirement on the coaxiality and the form and position tolerance of the main shaft hole of the cylinder body is high, a special tool for boring the main shaft hole is usually designed, the tool is special for a special model, the uniformity is avoided in the trial production of multiple products, and when the tool is used, as a boring rod for boring the main shaft hole is overhung, the vibration of a boring cutter is caused, and the machining precision of the main shaft hole is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly provides a cylinder block main shaft hole self guidance boring cutter, solve prior art's frock when using because boring main shaft hole boring bar overhang overlength, cause the boring cutter vibration, reduce the main shaft hole machining precision.
In order to solve the technical problem, the utility model discloses a following technical scheme:
the self-guiding boring cutter for the main shaft hole of the cylinder body comprises a cutter body, wherein the cutter body is provided with the boring cutter, a first bearing and a second bearing are sequentially and outwards arranged on a guide shaft at the front end of the cutter body, a spacer bush is arranged between the first bearing and the second bearing, guide bushes are arranged on the outer sides of the first bearing, the second bearing and the spacer bush, and an end cover is further arranged at the outer end of the guide shaft at the front end of the cutter body.
Further, the first bearing and the second bearing are in interference fit with a guide shaft at the front end of the cutter body.
Further, the first bearing and the second bearing adopt angular contact ball bearings.
Further, the end cover is fixed at the outer end of the guide shaft through a bolt.
Has the advantages that: 1. the cutter body is in interference fit with inner holes of the first bearing and the second bearing through a guide shaft at the front end of the cutter body, the first bearing and the second bearing are separated by a spacer bush, the outer diameter of the cutter body is in interference fit with the guide bush, and the end face of the cutter body is fastened by arranging the first bearing and the second bearing to be matched with the cutter body. When the spindle hole is bored, the guide sleeve extends into the next gear of spindle hole to form a guide fixing effect, so that the vibration of a boring cutter caused by the fact that a boring rod for boring the spindle hole is excessively extended is prevented, the machining difficulty and the machining roughness of the spindle hole are reduced, and the machining precision is improved. 2. The whole fixing mode is simple, and the dismounting is convenient.
Drawings
FIG. 1 is a schematic structural view of a boring tool according to the present embodiment;
reference numerals: the cutter body 1, the boring cutter 2, the guide sleeve 3, the first bearing 4, the second bearing 5, the spacer bush 6, the end cover 7 and the bolt 8.
Detailed Description
The following will explain in detail a technical solution of a self-guiding boring tool for a main shaft hole of a cylinder block according to the present invention with reference to the embodiments.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, the self-guiding boring tool 2 for the main shaft hole of the cylinder block of the present embodiment includes a tool body 1, the boring tool 2 is disposed on the tool body 1, a first bearing 4 and a second bearing 5 are sequentially disposed on a guide shaft at the front end of the tool body 1, a spacer 6 is disposed between the first bearing 4 and the second bearing 5, a guide sleeve 3 is disposed outside the first bearing 4, the second bearing 5 and the spacer 6, and an end cover 7 is further disposed at the outer end of the guide shaft at the front end of the tool body 1. The first bearing 4 and the second bearing 5 are in interference fit with a guide shaft at the front end of the cutter body 1. The first bearing 4 and the second bearing 5 adopt angular contact ball bearings. The end cover 7 is fixed at the outer end of the guide shaft through a bolt 8. The cutter body 1 is in interference fit with the inner holes of the first bearing 4 and the second bearing 5 through the guide shaft at the front end of the cutter body, the first bearing 4 and the second bearing 5 are separated by the spacer bush 6, the outer diameter of the first bearing is in interference fit with the guide bush 3, and the end face of the cutter body is fastened by the first bearing 4 and the second bearing 5 which are matched with the cutter body 1. When the spindle hole is bored, the guide sleeve 3 extends into the next spindle hole to form a guide fixing effect, so that the vibration of the boring cutter 2 caused by the overlong overhang of a boring rod for boring the spindle hole is prevented, the machining difficulty and roughness of the spindle hole are reduced, and the machining precision is improved. The whole fixing mode is simple, and the dismounting is convenient.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a cylinder block main shaft hole self guidance boring cutter which characterized in that: the boring cutter is arranged on the cutter body, a first bearing and a second bearing are sequentially and outwards arranged on a guide shaft at the front end of the cutter body, a spacer sleeve is arranged between the first bearing and the second bearing, guide sleeves are arranged on the outer sides of the first bearing, the second bearing and the spacer sleeve, and an end cover is further arranged at the outer end of the guide shaft at the front end of the cutter body.
2. The self-guiding boring tool for the main shaft hole of the cylinder block according to claim 1, wherein: the first bearing and the second bearing are in interference fit with a guide shaft at the front end of the cutter body.
3. The self-guiding boring tool for the main shaft hole of the cylinder block according to claim 1, wherein: the first bearing and the second bearing are angular contact ball bearings.
4. The self-guiding boring tool for the main shaft hole of the cylinder block according to claim 1, wherein: the end cover is fixed at the outer end of the guide shaft through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120431657.9U CN214443148U (en) | 2021-02-26 | 2021-02-26 | Self-guiding boring cutter for main shaft hole of cylinder body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120431657.9U CN214443148U (en) | 2021-02-26 | 2021-02-26 | Self-guiding boring cutter for main shaft hole of cylinder body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214443148U true CN214443148U (en) | 2021-10-22 |
Family
ID=78146546
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120431657.9U Active CN214443148U (en) | 2021-02-26 | 2021-02-26 | Self-guiding boring cutter for main shaft hole of cylinder body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214443148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192821A (en) * | 2021-12-10 | 2022-03-18 | 艾欧特克（江苏）机床有限公司 | High-precision boring cutter |
-
2021
- 2021-02-26 CN CN202120431657.9U patent/CN214443148U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114192821A (en) * | 2021-12-10 | 2022-03-18 | 艾欧特克（江苏）机床有限公司 | High-precision boring cutter |
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