CN213560164U - Square hole R3 slotting tool - Google Patents
Square hole R3 slotting tool Download PDFInfo
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- CN213560164U CN213560164U CN202022774825.2U CN202022774825U CN213560164U CN 213560164 U CN213560164 U CN 213560164U CN 202022774825 U CN202022774825 U CN 202022774825U CN 213560164 U CN213560164 U CN 213560164U
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Abstract
The utility model discloses a square hole R3 slotting tool belongs to slotting machining process technical field. The cutting tool comprises a tool body, a cutting part and a tool handle, wherein the central part of one side of the tool handle in a cuboid shape is fixedly connected with the central part of one end of the tool body in a long-strip-shaped rhombohedra, and the other end of the tool body is fixedly connected with the cutting part; the cutting part is a short-strip-shaped rhombohedral body, the left side of the cutting part is narrow, the right side of the cutting part is wide, the cutting part is in an outward expanding type, the cutting relief angle is 6 degrees, the cutting front angle is 12 degrees, and the upper end and the lower end of the cutting part are both double-sided cutting edges with round corners of R3; the cutter body, the cutter handle and the cutting part are made of different materials, the cutting part is made of W2Mo9Cr4VCo8, and the cutter body and the cutter handle are made of No. 50 steel. The utility model discloses rational in infrastructure, convenient and practical can effectual realization be to the slotting process of small-size square hole fillet.
Description
Technical Field
The utility model relates to a square hole R3 slotting tool belongs to slotting machining process technical field.
Background
When the slotting machine works, a slotting tool rod is used, a high-speed steel slotting tool is clamped on the slotting tool rod, but when the space of a part needing to be processed is small, the requirement cannot be met due to the limitation of the size. At this moment, the slotting tool of the integral type just needs to be adopted, and the existing integral type slotting tool in the market is mostly a key slot slotting tool, and the processing requirement of a fillet can not be met. Some workpieces need to be processed with square holes, but the sizes of the upper half part and the lower half part of each square hole are large, namely the upper half part is an incomplete through hole, the lower half part is a complete through hole, four corners of the upper half part are processed into circular arcs of R3, the depth of each hole is deep, a round angle R3 is too small, a milling cutter is short in length and cannot be used for milling, and only slotting machining can be used; meanwhile, the hardness of the part material is higher, and the processing difficulty is increased.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a square hole R3 slotting tool, the device are applicable to the fillet processing in small-size square hole, can realize the slotting process to the fillet in the small-size square hole, have simplified the processing degree of difficulty, have reduced the processing cost.
The utility model provides a technical scheme that its technical problem adopted is: a square hole R3 slotting tool comprises a tool body, a cutting part and a tool handle, wherein the center part of one side of the tool handle in a cuboid shape is fixedly connected with the center part of one end of the tool body in a long-strip-shaped rhombohedra, and the other end of the tool body is fixedly connected with the cutting part; the cutting part is a short-strip-shaped rhombohedral body, the left side of the cutting part is narrow, the right side of the cutting part is wide, the cutting part is in an outward expanding type, the cutting relief angle is 6 degrees, the cutting front angle is 12 degrees, and the upper end and the lower end of the cutting part are both double-sided cutting edges with round corners of R3; the cutter body, the cutter handle and the cutting part are made of different materials, the cutting part is made of W2Mo9Cr4VCo8, and the cutter body and the cutter handle are made of No. 50 steel.
The material of the cutting part has the hardness of 67-69 HRC after heat treatment, has the advantages of high normal-temperature hardness and high-temperature hardness, easiness in grinding, sharpness and the like, is suitable for manufacturing various high-precision complex cutters, and can also be used as various high-hardness cutter heads; after the cutter body and the cutter handle are made of heat treatment materials, the hardness of the cutter body and the cutter handle is 35-45 HRC, and in consideration of economy, the cutter body, the cutter handle and the cutting part are made of different materials and are connected in a welding mode; the cutting part adopts double-sided cutting edges, the tool changing times can be reduced in the processing process, and the processing of two fillets in the diagonal direction can be completed by once tool mounting; setting a cutting back angle of a cutting part to be 6 degrees and a cutting front angle to be 12 degrees, and aiming at reducing the resistance of a cutter in the processing process; when the slotting device works, the redundant amount of the straight line part is removed by using a common key slot slotting tool, then the square hole R3 slotting tool is changed to process the round corner part of the R3, the slotting device is connected with a slotting machine through a bolt, and the round corner end of the R3 of the cutting part is aligned to the round corner of the small square hole to be processed by the workpiece in the vertical direction, so that the slotting processing is completed.
The utility model has the advantages that: the utility model has simple structure, reasonable design and convenient use and operation, adopts double-sided cutting edges, and can finish the processing of two fillets in the diagonal direction by one-time clamping; the cutter not only meets the use requirements, realizes the slotting machining of the inner fillet of the small-size square hole, but also considers the machining cost, and is well applied to production.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Fig. 1 is a front view of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic view of the present invention in operation.
Reference numbers in the figures:
1. cutter body, 2, cutting part, 3, handle of a knife, 4, work piece, 5, bolt.
Detailed Description
As shown in fig. 1-3, a square hole R3 slotting tool comprises a tool body 1, a cutting part 2 and a tool shank 3, wherein the center of one side of the tool shank 3 in a cuboid shape is fixedly connected with the center of one end of the tool body 1 in a long rhombohedral shape, and the other end of the tool body 1 is fixedly connected with the cutting part 2; the cutting part 2 is a short-strip-shaped rhombohedral body, the left side of the cutting part is narrow, the right side of the cutting part is wide, the cutting part is in an outward expanding mode, the cutting relief angle is 6 degrees, the cutting front angle is 12 degrees, and the upper end and the lower end of the cutting part 2 are both double-sided cutting edges with round corners of R3; the cutter body 1, the cutter handle 3 and the cutting part 2 are made of different materials, the cutting part 2 is made of W2Mo9Cr4VCo8, and the cutter body 1 and the cutter handle 3 are made of No. 50 steel.
The material of the cutting part 2 is subjected to heat treatment, the hardness is 67-69 HRC, and the cutting part has the advantages of high normal-temperature hardness and high-temperature hardness, easiness in grinding, sharpness and the like, is suitable for manufacturing various high-precision complex cutters and can also be used as various high-hardness cutter heads; after the cutter body 1 and the cutter handle 3 are made of heat treatment materials, the hardness of the cutter body 1 and the cutter handle 3 is 35-45 HRC, and in consideration of economy, the cutter body 1, the cutter handle 3 and the cutting part 2 are made of different materials and are connected in a welding mode; the cutting part 2 adopts a double-sided cutting edge, the tool changing times can be reduced in the processing process, and the processing of two fillets in the diagonal direction can be completed by once tool mounting; setting a cutting back angle of the cutting part 2 to be 6 degrees and a cutting front angle to be 12 degrees, so as to reduce the resistance of a cutter in the processing; when the slotting device works, the redundant amount of the straight line part is removed by using a common key slot slotting tool, then the square hole R3 slotting tool is changed to process the round corner part of the R3, the slotting device is connected with a slotting machine through a bolt 5, and the round corner end of the R3 of the cutting part 2 is aligned to the round corner of the small square hole to be processed by the workpiece 4 in the vertical direction to complete the slotting processing.
Claims (2)
1. The utility model provides a square hole R3 slotting tool, includes cutter body (1), cutting part (2) and handle of a knife (3), its characterized in that: the center part of one side of the cuboid-shaped tool handle (3) is fixedly connected with the center part of one end of the long-strip-shaped rhombohedron body (1), and the other end of the tool body (1) is fixedly connected with the cutting part (2); the cutting part (2) is a short-strip-shaped rhombohedral body, the left side of the cutting part is narrow, the right side of the cutting part is wide, the cutting part is in an outward expanding type, the cutting relief angle is 6 degrees, the cutting front angle is 12 degrees, and the upper end and the lower end of the cutting part (2) are both double-sided cutting edges with round corners of R3.
2. A square hole R3 slotting tool according to claim 1, wherein: the cutter body (1), the cutter handle (3) and the cutting part (2) are made of different materials, the cutting part (2) is made of W2Mo9Cr4VCo8, and the cutter body (1) and the cutter handle (3) are made of No. 50 steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022774825.2U CN213560164U (en) | 2020-11-26 | 2020-11-26 | Square hole R3 slotting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022774825.2U CN213560164U (en) | 2020-11-26 | 2020-11-26 | Square hole R3 slotting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213560164U true CN213560164U (en) | 2021-06-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022774825.2U Active CN213560164U (en) | 2020-11-26 | 2020-11-26 | Square hole R3 slotting tool |
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| CN (1) | CN213560164U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618135A (en) * | 2021-08-20 | 2021-11-09 | 哈尔滨汽轮机厂有限责任公司 | Slotting blade special for planing and slotting machine tool and machining method |
-
2020
- 2020-11-26 CN CN202022774825.2U patent/CN213560164U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113618135A (en) * | 2021-08-20 | 2021-11-09 | 哈尔滨汽轮机厂有限责任公司 | Slotting blade special for planing and slotting machine tool and machining method |
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