CN111318732A - Tool for boring wall hole with specified length - Google Patents
Tool for boring wall hole with specified length Download PDFInfo
- Publication number
- CN111318732A CN111318732A CN202010250099.6A CN202010250099A CN111318732A CN 111318732 A CN111318732 A CN 111318732A CN 202010250099 A CN202010250099 A CN 202010250099A CN 111318732 A CN111318732 A CN 111318732A
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- China
- Prior art keywords
- cutter body
- tool
- boring
- wall hole
- blade
- Prior art date
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- Granted
Links
- 230000006835 compression Effects 0.000 claims description 8
- 238000007906 compression Methods 0.000 claims description 8
- 238000005520 cutting process Methods 0.000 claims description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000009434 installation Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B39/00—General-purpose boring or drilling machines or devices; Sets of boring and/or drilling machines
- B23B39/16—Drilling machines with a plurality of working-spindles; Drilling automatons
- B23B39/161—Drilling machines with a plurality of working-spindles; Drilling automatons with parallel work spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B47/00—Constructional features of components specially designed for boring or drilling machines; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cutting Tools, Boring Holders, And Turrets (AREA)
Abstract
The invention discloses a tool for boring a wall hole with a specified length, which comprises: the cutter comprises a cutter body, wherein a first blade mounting surface and a second blade mounting surface are arranged on one side of the cutter body, the first blade mounting surface is positioned at the front section of the cutter body, the second blade mounting surface is positioned at the middle section of the cutter body, and the first blade mounting surface and the second blade mounting surface are not in the same vertical plane; the first blade and the second blade are respectively arranged in the first blade mounting surface and the second blade mounting surface, so that the first blade and the second blade are distributed in a step shape and are not in the same vertical plane, and the first blade and the second blade protrude out of the upper surface of the cutter body by the same height. The tool for boring the wall hole with the specified length effectively relieves the phenomenon of uneven stress, so that the stability of the cutter body is enhanced, the service lives of the cutter body and the cutter blade are prolonged, the cost is reduced, meanwhile, the roughness of the wall hole is good, and the product quality is ensured.
Description
Technical Field
The invention relates to the technical field of machining and manufacturing, in particular to a tool for boring a wall hole with a specified length.
Background
Under the current trend of rapid development and large-scale production environment, how to ensure the quality of products and produce the products rapidly and efficiently is very important. In the machining process of machining and manufacturing engine cylinder blocks and cylinder heads, a tool holder adopted by a plurality of machine tools for boring a wall hole can only be provided with one blade, however, a single-tool holder has great hidden dangers to quality and production, and the specific hidden dangers are as follows:
1. the single-edge stress of the single-tool cutter clamp during boring is generated, the service life of the cutter clamp and the service life of the blade are seriously reduced due to uneven stress, the use cost is increased, the roughness of a wall hole is poor, the use requirement can not be met even, and the quality risk is high.
2. The stroke is increased by the single cutter, the production beat is increased, the production efficiency is reduced, and continuous and efficient production cannot be guaranteed.
Therefore, in order to reduce the stroke, relieve the uneven stress situation, ensure the product quality, accelerate the production and the like, a tool for boring a wall hole with a specified length is urgently needed to be developed so as to ensure the product quality, save the production time, improve the production efficiency and the like.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a tool for boring a wall hole with a specified length, which can effectively relieve the phenomenon of uneven stress and enhance the stability of a cutter body.
In order to achieve the above object, the present invention provides a tool for boring a wall hole of a specified length, comprising: the cutter comprises a cutter body, wherein a first blade mounting surface and a second blade mounting surface are arranged on one side of the cutter body, the first blade mounting surface is positioned at the front section of the cutter body, the second blade mounting surface is positioned at the middle section of the cutter body, and the first blade mounting surface and the second blade mounting surface are not in the same vertical plane; the first blade and the second blade are respectively arranged in the first blade mounting surface and the second blade mounting surface, so that the first blade and the second blade are distributed in a step shape and are not in the same vertical plane, and the first blade and the second blade protrude out of the upper surface of the cutter body by the same height.
In an embodiment of the present invention, the tool for boring a wall hole of a specified length further includes: and the positioning blocks are arranged at the bottom of the cutter body and in corresponding grooves on the end surface of the boring bar so as to limit the freedom degree of the cutter body in the front and back directions.
In an embodiment of the invention, an annular mounting groove is vertically and downwardly formed in the upper end surface of the rear section of the cutter body, and the annular mounting groove is used for arranging a plurality of screws so as to fixedly connect the cutter body and the boring bar.
In an embodiment of the present invention, a positioning screw hole is horizontally formed in the rear end surface of the cutter body inward, and the positioning screw hole is used for limiting the degree of freedom of the cutter body in the left-right direction and adjusting the installation height of the cutter body by the positioning screw.
In an embodiment of the present invention, the number of the positioning blocks is two, and the two positioning blocks are respectively disposed at the front end and the rear end of the bottom of the cutter body.
In one embodiment of the invention, when the cutter body is installed on the boring bar, the distances from the point of the cutter point of the first blade and the point of the cutter point of the second blade to the center of the boring bar are consistent with the radius of the bored wall hole.
In one embodiment of the invention, the spacing between the first and second inserts is half the length of the bored wall hole so that the cutting length strokes of the first and second inserts are the same.
In one embodiment of the present invention, the front end and the rear end of the upper surface of the cutter body, which are located on the first insert mounting surface, are inclined obliquely downward and form a 70 ° allowance angle with the vertical direction, respectively.
In one embodiment of the invention, the first blade mounting surface is centrally provided with a screw hole for mounting a compression screw, the screw hole having an eccentricity of 0.1 mm.
Compared with the prior art, the tool for boring the wall hole with the specified length has the following advantages: the tool for boring the wall hole with the specified length is provided with the two blade mounting surfaces for mounting the two blades simultaneously, the double blades effectively relieve the phenomenon of uneven stress, the stability of the cutter body is enhanced, the service lives of the cutter body and the blades are prolonged, the cost is reduced, meanwhile, the roughness of the wall hole is good, and the product quality is guaranteed. The two blades are not in the same vertical plane and have a certain distance, but the protruding heights of the two blades are the same, so that the stress is uniform, the stability is improved, and the service life is prolonged.
Drawings
FIG. 1 is a front view of a tool for boring a wall hole of a specified length in accordance with an embodiment of the present invention;
FIG. 2 is a top view of a tool for boring a wall hole of a specified length according to one embodiment of the present disclosure;
FIG. 3 is a partial cross-sectional view taken along A-A of FIG. 1;
FIG. 4 is a partial cross-sectional view taken along line B-B of FIG. 1;
fig. 5 is an assembly view of a cutter body mounted on a boring bar according to an embodiment of the present invention.
Detailed Description
The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.
As shown in fig. 1 to 4, the tool for boring a wall hole of a designated length according to the preferred embodiment of the present invention includes a tool body 1, and one side of the tool body 1 is provided with a first insert mounting surface 21 and a second insert mounting surface 22. The first blade mounting surface 21 is located at the front section of the cutter body 1, the second blade mounting surface 22 is located at the middle section of the cutter body 1, and the first blade mounting surface 21 and the second blade mounting surface 22 are not in the same vertical plane. Note that the direction indicated by an arrow in fig. 2 is the front of the cutter body 1. The first and second insert mounting surfaces 21 and 22 are arranged in a stepped manner, wherein the second insert mounting surface 22 protrudes outward in the cutter body width direction than the first insert mounting surface 21. The first and second blades are mounted in the blade mounting grooves 211, 221 in the first and second blade mounting surfaces 21, 22, respectively, such that the first and second blades are not in the same vertical plane and are in a stepped distribution. But the first blade and the second blade protrude the same height of cutter body upper surface for blade and cutter body atress are more even, and stability is better, and surface roughness is better after the processing is accomplished.
In an embodiment of the present invention, the tool for boring a wall hole of a specified length further includes: the plurality of positioning blocks 3 are arranged at the bottom of the cutter body 1, the positioning blocks 3 are arranged in corresponding grooves in the end face of the boring rod, the positioning blocks 3 have the installation guiding effect, and meanwhile, the freedom degree of the cutter body 1 in the front and back directions is also limited, so that the cutter body is effectively prevented from moving back and forth in the front and back directions.
In an embodiment of the present invention, an annular mounting groove 5 is vertically formed downward on an upper end surface of the middle-rear section of the cutter body 1, and the annular mounting groove 5 is used for mounting a plurality of screws.
In an embodiment of the present invention, the rear end surface of the cutter body 1 is horizontally provided with a positioning screw hole 4 inward, the positioning screw hole 4 limits the degree of freedom of the cutter body 1 in the left-right direction, the cutter body is effectively prevented from moving back and forth in the left-right direction, the mounting height of the cutter body is adjusted by the positioning screw, and the usability of the cutter body is enhanced.
In one embodiment of the invention, as shown in fig. 1, the number of the positioning blocks 3 is two, the two positioning blocks 3 are respectively arranged at the front end and the rear end of the bottom of the cutter body 1, the two positioning blocks 3 are arranged in corresponding grooves on the end surface of the boring bar, the length L and the height H of the cutter body 1 are determined according to the size of the groove on the end surface of the boring bar, the distances from the tool tip point of the first blade and the tool tip point of the second blade to the center of the boring bar are respectively consistent with the radius of a bored wall hole, and the distance △ L between the first blade and the second blade is half of the length of the bored wall hole, so that the cutting length strokes of the first blade and the second blade are the same, and the cutter adjustment and the cutter changing are convenient.
In one embodiment of the present invention, as shown in fig. 1, the front end and the rear end of the upper surface of the cutter body 1 on the first blade mounting surface 21 are inclined obliquely downward and have a yield angle α with respect to the vertical direction, wherein the yield angle α is 70 ° because interference collision is easily generated if the angle is a right angle, and the 70 ° yield angle is to be yielded as much as possible while ensuring the strength of the cutter body.
In one embodiment of the present invention, the first blade mounting surface 21 is centrally provided with a screw hole for mounting a compression screw, the screw hole having an eccentricity of 0.1 mm. The purpose of the screw hole being 0.1mm eccentric is to enable the compression screw of the compression blade to tighten the compression blade more tightly, thereby increasing the compression force of the compression screw.
In one embodiment of the present invention, as shown in FIGS. 3 and 4, the surface roughness of both the insert mounting groove 211 in the first insert mounting face and the insert mounting groove 221 in the second insert mounting face are 1.6 μm, and the width of both the insert mounting grooves 211 and 221 is 1 mm.
In one embodiment of the present invention, as shown in fig. 5, when the cutter body 1 is mounted to the boring bar 6 (in this case, the front end of the cutter body 1 is mounted vertically downward on the boring bar 6), the positioning block is disposed in the mounting groove 7 of the end surface of the boring bar 6, and two screws 8 are disposed in the annular mounting groove 5 to fixedly couple the cutter body 1 to the boring bar 6. The set screw 9 can help to position the cutter body 1 and to adjust the mounting height of the cutter body 1. The first and second blade mounting surfaces 21 and 22 are for mounting a first and second blade, respectively. Because two blade installation faces are arranged for installing two blades simultaneously, the phenomenon of uneven stress is effectively relieved by the double blades, the stability of the cutter body is enhanced, the service lives of the cutter body and the blades are prolonged, the cost is reduced, the roughness of the wall hole is good, and the product quality is ensured.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (9)
1. A tool for boring a wall hole of a specified length, the tool comprising:
the cutter comprises a cutter body, wherein a first blade mounting surface and a second blade mounting surface are arranged on one side of the cutter body, the first blade mounting surface is positioned at the front section of the cutter body, the second blade mounting surface is positioned at the middle section of the cutter body, and the first blade mounting surface and the second blade mounting surface are not in the same vertical plane;
first and second inserts mounted in the first and second insert mounting surfaces, respectively, such that the first and second inserts are stepped and not in the same vertical plane, the first and second inserts protruding above the upper surface of the cutter body by the same height.
2. The tool for boring a wall hole of specified length according to claim 1, further comprising: and the positioning blocks are arranged in corresponding grooves on the end surface of the boring bar so as to limit the freedom degree of the cutter body in the front and back directions.
3. The tool for boring the wall hole with the specified length as claimed in claim 2, wherein the upper end surface of the rear section in the cutter body is vertically and downwardly provided with the annular mounting groove for arranging a plurality of screws so that the cutter body is fixedly connected with the boring bar.
4. The tool for boring a wall hole of a specified length as claimed in claim 1, wherein a set screw hole is horizontally formed in the rear end surface of the cutter body inward, the set screw hole is used for limiting the degree of freedom of the cutter body in the left-right direction, and the mounting height of the cutter body is adjusted by a set screw.
5. The tool for boring a wall hole of a specified length according to claim 1, wherein the number of the positioning blocks is two, and the two positioning blocks are respectively arranged at the front end and the rear end of the bottom of the cutter body.
6. The tool for boring a wall hole of a specified length as claimed in claim 2, wherein the distances from the point of the tip of the first insert and the point of the tip of the second insert, respectively, to the center of the boring bar are consistent with the radius of the bored wall hole when the tool body is mounted to the boring bar.
7. The tool for boring a wall hole of specified length according to claim 2, wherein the spacing between the first insert and the second insert is half the length of the wall hole bored so that the cutting length strokes of the first insert and the second insert are the same.
8. The tool for boring a wall hole of a specified length according to claim 1, wherein the front end and the rear end of the upper surface of the cutter body on the first insert mounting surface are respectively inclined obliquely downward and form a relief angle of 70 ° with the vertical direction.
9. The tool for boring a wall hole of a specified length according to claim 1, wherein the first insert mounting surface is centrally provided with a threaded hole for mounting a compression screw, the threaded hole having an eccentricity of 0.1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250099.6A CN111318732B (en) | 2020-04-01 | 2020-04-01 | Tool for boring wall hole with specified length |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010250099.6A CN111318732B (en) | 2020-04-01 | 2020-04-01 | Tool for boring wall hole with specified length |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111318732A true CN111318732A (en) | 2020-06-23 |
| CN111318732B CN111318732B (en) | 2024-03-15 |
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ID=71166218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010250099.6A Active CN111318732B (en) | 2020-04-01 | 2020-04-01 | Tool for boring wall hole with specified length |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111318732B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007069306A (en) * | 2005-09-07 | 2007-03-22 | Mitsubishi Materials Corp | Cutting tool and insert |
| CN203076611U (en) * | 2013-01-10 | 2013-07-24 | 安徽全柴动力股份有限公司 | Multiple-cutting-edge boring cutter with outer diameter of cutting edges capable of being adjusted synchronously |
| CN104551129A (en) * | 2015-01-28 | 2015-04-29 | 绵阳市绵工工具有限公司 | Combined drilling and boring cutter for hole machining |
| CN109262000A (en) * | 2018-11-14 | 2019-01-25 | 东风专用汽车有限公司 | A kind of composite boring cutters of numerical control borer |
| CN212285924U (en) * | 2020-04-01 | 2021-01-05 | 广西玉柴机器股份有限公司 | Tool for boring wall hole with specified length |
-
2020
- 2020-04-01 CN CN202010250099.6A patent/CN111318732B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007069306A (en) * | 2005-09-07 | 2007-03-22 | Mitsubishi Materials Corp | Cutting tool and insert |
| CN203076611U (en) * | 2013-01-10 | 2013-07-24 | 安徽全柴动力股份有限公司 | Multiple-cutting-edge boring cutter with outer diameter of cutting edges capable of being adjusted synchronously |
| CN104551129A (en) * | 2015-01-28 | 2015-04-29 | 绵阳市绵工工具有限公司 | Combined drilling and boring cutter for hole machining |
| CN109262000A (en) * | 2018-11-14 | 2019-01-25 | 东风专用汽车有限公司 | A kind of composite boring cutters of numerical control borer |
| CN212285924U (en) * | 2020-04-01 | 2021-01-05 | 广西玉柴机器股份有限公司 | Tool for boring wall hole with specified length |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111318732B (en) | 2024-03-15 |
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