CN216632628U - Indexable copying turning blade for machining thrust wheel - Google Patents
Indexable copying turning blade for machining thrust wheel Download PDFInfo
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- CN216632628U CN216632628U CN202122542077.XU CN202122542077U CN216632628U CN 216632628 U CN216632628 U CN 216632628U CN 202122542077 U CN202122542077 U CN 202122542077U CN 216632628 U CN216632628 U CN 216632628U
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- 230000007704 transition Effects 0.000 claims abstract description 12
- 241001391944 Commicarpus scandens Species 0.000 description 4
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- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000017105 transposition Effects 0.000 description 3
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Abstract
The utility model discloses an indexable copying turning blade for processing a thrust wheel, which comprises a blade body; the projection of the outline of the blade body is in a long-strip square shape; in the blade body, at two ends of the length, protruding parts with arc-shaped outline projection are respectively and outwards protruded along the width direction; the insert body having an upper surface, a bottom surface, and side surfaces; in the blade body, in the position corresponding to two minor faces of rectangular square shape, intersect by upper surface and side surface and form linear type main cutting edge, in the position corresponding to protruding portion, intersect by upper surface and side surface and form the circular arc cutting edge, the circular arc cutting edge with main cutting edge is tangent transition. On the basis of simultaneously meeting the requirements of profile turning and end face turning, the utility model has the characteristics of low cost and high economy, can reduce the machining resistance, improves the performance of the blade, and simultaneously can ensure that the arc and the straight line on the inner wall of a machined workpiece are crossed to form perfect transition.
Description
Technical Field
The utility model relates to the technical field of cutters, in particular to an indexable copying turning blade for machining a thrust wheel.
Background
A tool is a tool used for cutting machining in machine manufacturing, and is also called a cutting tool. There are a wide variety of tools, including tools for machining various outer surfaces, tools for hole machining, tools for thread machining, tools for gear machining, tools for cutting, and so forth. The machining of the inner wall of the thrust wheel of the engineering machinery is always an industrial machining problem, the inner wall of the thrust wheel is complex in shape, copying turning and end face turning exist during machining, a standard cutter is not provided with enough avoiding space during machining, interference is easy to occur, the roughness requirement of the inner wall of a workpiece is generally Ra4.5-Ra8.8, feeding needs to be improved during machining to obtain a sufficiently rough surface, and the overall strength of a blade is tested. In the prior art, a non-standard cutter is adopted for machining a thrust wheel workpiece, a common cutter is a single-edge profiling lathe cutter, and a 90-degree corner is formed between a blade and a positioning surface so as to ensure enough avoiding space and meet the requirements of complex inner wall profiling turning and end face turning. However, the blade in the prior art is difficult to produce and high in cost, so that the pricing of the blade is high for a long time, and each blade can be used only once and cannot be used in a transposition mode. For manufacturers of thrust wheel machining, the cutter has high purchase cost and poor economy, and the aim of reducing the production cost cannot be fulfilled.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide an indexable copying turning blade for machining a thrust wheel, which has the characteristics of low cost and high economy on the basis of simultaneously meeting the requirements of copying turning and end face turning, can reduce the machining resistance and improve the performance of the blade on the other hand, and can ensure that the arc and the straight line on the inner wall of a machined workpiece are intersected to form perfect transition.
The technical scheme adopted by the utility model for solving the technical problems is as follows: an indexable contour turning insert for machining thrust wheels, comprising an insert body; the projection of the outline of the blade body is in a long-strip square shape; in the blade body, at two ends of the length, protruding parts with arc-shaped outline projection are respectively and outwards protruded along the width direction; the insert body having an upper surface, a bottom surface, and side surfaces; in the blade body, at the positions corresponding to two short sides of the long square shape, a linear main cutting edge is formed by intersecting an upper surface and a side surface, a front blade surface of the main cutting edge is arranged by extending the main cutting edge along the upper surface towards the inner side direction, and a rear blade surface of the main cutting edge is arranged by extending the main cutting edge along the side surface towards the lower side direction; in the blade body, an arc cutting edge is formed by the intersection of the upper surface and the side surface at the position corresponding to the protruding part, an arc cutting edge front blade surface is arranged by extending the arc cutting edge along the upper surface towards the inner side direction, and an arc cutting edge rear blade surface is arranged by extending the arc cutting edge along the side surface towards the lower side direction; the cutting rake angles of the front cutter surface of the main cutting edge and the front cutter surface of the arc cutting edge, and the cutting relief angles of the rear cutter surface of the main cutting edge and the rear cutter surface of the arc cutting edge are respectively set to correspondingly change along with the shape change of the profile of the workpiece to be machined; the arc cutting edge and the main cutting edge are in tangent transition.
In the blade body, a chip breaker groove anti-chip surface of a main cutting edge with an anti-chip angle which changes correspondingly with the shape change of the profile of a machined workpiece is arranged in an extending way from the front tool surface of the main cutting edge to the inner side direction along the upper surface; the chip breaker groove anti-chip surface of the arc cutting edge with an anti-chip angle which correspondingly changes along with the change of the outline of the machined workpiece is arranged by extending the front tool surface of the arc cutting edge along the upper surface towards the inner side direction.
A linear cutting edge zone is also arranged between the main cutting edge and the front tool surface of the main cutting edge; and an arc cutting edge zone is also arranged between the arc cutting edge and the front cutter face of the arc cutting edge.
The linear cutting blade zone and the arc cutting blade zone have blade widths with the same width, and the width variation range is 0-1 mm.
The variation range of the cutting rake angle of the main cutting edge is 0-60 degrees, the cutting rake angle is larger than 60 degrees, the wedge angle of the blade is only less than 30 degrees, and the strength of the tool nose is not enough to ensure that the blade is cut; the variation range of the cutting back angle is 0-45 degrees, and when the cutting back angle is more than 45 degrees, the support strength of the back cutter surface of the blade is reduced, and the blade is easy to break; the change range of the chip-resisting angle is 0-60 degrees, the chip-resisting angle is larger than 60 degrees, the chip-resisting surface is close to vertical, the chip-resisting effect is reduced, and the normal chip removal is influenced.
The variation range of the cutting rake angle of the arc cutting edge is 0-60 degrees, the cutting rake angle is larger than 60 degrees, the wedge angle of the blade is only less than 30 degrees, and the strength of the tool nose is not enough to ensure that the blade is subjected to cutting processing; the variation range of the cutting back angle is 0-45 degrees, and when the cutting back angle is more than 45 degrees, the support strength of the back cutter surface of the blade is reduced, and the blade is easy to break; the change range of the chip-resisting angle is 0-60 degrees, the chip-resisting angle is larger than 60 degrees, the chip-resisting surface is close to vertical, the chip-resisting effect is reduced, and the normal chip removal is influenced.
The angle range of the arc cutting edge is 0-180 degrees.
In the side of blade body, in the position corresponding to two long limits of rectangular square shape, still be equipped with two holding surfaces that are parallel to each other.
In the blade body, a V-shaped positioning groove with a V-shaped cross section is respectively arranged on the upper surface and the lower surface.
The angle of the V shape of the V-shaped positioning groove is larger than 90 degrees and smaller than 180 degrees.
Compared with the prior art, the utility model has the beneficial effects that:
because the utility model adopts the blade body, at the two ends of the length, the convex parts with the outline projection in the shape of circular arc are respectively convexly extended outwards along the width direction; in the blade body, at the positions corresponding to two short sides of the long square shape, a linear main cutting edge is formed by intersecting an upper surface and a side surface, a front cutter surface of the main cutting edge is arranged by extending the main cutting edge along the upper surface towards the inner side direction, and a rear cutter surface of the main cutting edge is arranged by extending the main cutting edge along the side surface towards the lower side direction; in the blade body, an arc cutting edge is formed by the intersection of the upper surface and the side surface at the position corresponding to the protruding part, an arc cutting edge front cutter surface is arranged by extending the arc cutting edge along the upper surface towards the inner side direction, and an arc cutting edge rear cutter surface is arranged by extending the arc cutting edge along the side surface towards the lower side direction; the cutting rake angles of the front cutter face of the main cutting edge and the front cutter face of the arc cutting edge and the cutting relief angles of the rear cutter face of the main cutting edge and the rear cutter face of the arc cutting edge are set to correspondingly change along with the change of the outline of the machined workpiece; the arc cutting edge and the main cutting edge are in tangent transition. According to the structure, the four arc cutting edges and the two linear cutting edges are arranged on one blade, so that the requirements of profile turning and end face turning can be met simultaneously, the arc cutting edges and the linear cutting edges are in smooth transition, no intersection point exists, and the perfect transition of the intersection of the arcs and the linear cutting edges on the inner wall of a machined workpiece can be ensured; the four-arc cutting edge is utilized to carry out four-time transposition, so that the economical efficiency of the blade is greatly improved; the utility model simultaneously arranges the chip breaker groove on each arc cutting edge and each straight cutting edge, thus reducing the processing resistance, reasonably breaking chips and improving the performance of the blade.
The utility model is further explained in detail with the accompanying drawings and the embodiments; an indexable copying turning insert for machining thrust wheels of the present invention is not limited to the embodiments.
Drawings
FIG. 1 is a schematic perspective view of an embodiment of the present invention;
FIG. 2 is a top view of an embodiment of the present invention;
FIG. 3 is an enlarged schematic view of section A of FIG. 2;
FIG. 4 is an enlarged schematic view of section B of FIG. 2;
FIG. 5 is a schematic perspective view (turned over an angle) of an embodiment of the present invention;
fig. 6 is a side view of an embodiment of the present invention.
Detailed Description
Examples
Referring to fig. 1 to 6, an indexable copying turning insert for machining thrust wheels of the present invention comprises an insert body 1; the projection of the outline of the blade body 1 is in a long-strip square shape; in the blade body 1, at two ends 2 of the length, convex protrusions 3 with the outline projection in the shape of circular arc are respectively and convexly extended outwards along the width direction; the insert body 1 has an upper surface, a bottom surface and side surfaces; in the insert body 1, a linear main cutting edge 4 is formed by intersecting an upper surface and a side surface at positions corresponding to two short sides of a rectangular square shape, a main cutting edge rake surface 5 is provided by extending the main cutting edge 4 in the upper surface inward direction, and a main cutting edge flank surface 6 is provided by extending the main cutting edge 4 in the side surface downward direction; in the insert body 1, at a position corresponding to the protruding part 3, an arc cutting edge 7 is formed by the intersection of the upper surface and the side surface, an arc cutting edge rake face 8 is arranged by extending the arc cutting edge 7 along the upper surface towards the inner side direction, and an arc cutting edge flank face 9 is arranged by extending the arc cutting edge 7 along the side surface towards the lower side direction; the cutting rake angle α 1 of the main cutting edge rake surface 5 and the cutting rake angle α 2 of the circular arc cutting edge rake surface 8, and the cutting relief angle β 1 of the main cutting edge flank surface 6 and the cutting relief angle β 2 of the circular arc cutting edge flank surface 9 are set to change correspondingly with the change of the profile of the workpiece to be machined; the arc cutting edge 7 and the main cutting edge 4 are in tangent transition.
In the present embodiment, in the insert body 1, a chip breaker chip-breaker surface 10 having a main cutting edge with a chip-breaker angle γ 1 that changes correspondingly with changes in the profile of a workpiece to be machined is provided extending from the main cutting edge rake surface 5 in the upward and inward direction; a chip breaker chip-breaker surface 11 having a circular cutting edge with a chip-breaker angle γ 2 that changes according to the change in the contour of the workpiece to be machined is provided extending from the circular cutting edge rake surface 8 in the upward and inward direction.
In this embodiment, a linear cutting land 12 is further provided between the main cutting edge 4 and the main cutting edge rake face 5; and an arc cutting edge zone 13 is also arranged between the arc cutting edge 7 and the arc cutting edge front knife face 8.
In the present embodiment, the linear cutting land 12 and the circular cutting land 13 have the same width, and the width variation range is 0 to 1 mm.
In the embodiment, the variation range of the cutting rake angle α 1 of the main cutting edge is 0 to 60 degrees, the cutting rake angle is greater than 60 degrees, the wedge angle of the blade at the moment is only less than 30 degrees, and the strength of the tool nose is not enough to ensure that the blade performs cutting processing; the variation range of the cutting relief angle beta 1 is 0-45 degrees, and when the cutting relief angle is larger than 45 degrees, the support strength of the cutter face of the blade is reduced, and the blade is easy to break; the change range of the chip-reflecting angle gamma 1 is 0-60 degrees, the chip-reflecting angle is larger than 60 degrees, the chip-reflecting surface is close to vertical, the chip-reflecting effect is reduced, and the normal chip removal is influenced.
In the embodiment, the variation range of the cutting rake angle alpha 2 of the arc cutting edge is 0-60 degrees, the cutting rake angle is larger than 60 degrees, the wedge angle of the blade is only less than 30 degrees, and the strength of the tool nose is not enough to ensure that the blade can be cut; the variation range of the cutting relief angle beta 2 is 0-45 degrees, and when the cutting relief angle is larger than 45 degrees, the support strength of the cutter face of the blade is reduced, and the blade is easy to break; the change range of the chip-reflecting angle gamma 2 is 0-60 degrees, the chip-reflecting angle is larger than 60 degrees, the chip-reflecting surface is close to vertical, the chip-reflecting effect is reduced, and the normal chip removal is influenced.
In this embodiment, the angle range of the arc cutting edge 7 is 0 to 180 degrees.
In this embodiment, two parallel support surfaces 14 and 15 are provided on the side surface of the insert body 1 at positions corresponding to the two long sides of the rectangular square shape.
In this embodiment, the blade body 1 is further provided with a V- shaped positioning groove 16, 17 having a V-shaped cross section on the upper surface and the lower surface, respectively.
In this embodiment, the angles of the V-shapes of the V- shaped positioning grooves 16 and 17 are both greater than 90 degrees and smaller than 180 degrees; wherein, on blade body 1, at the interlude of the length of blade body 1, still be equipped with boss 18, the V-arrangement constant head tank 16 of the upper surface of blade body 1 is established on boss 18, and the V-arrangement constant head tank 17 of the lower surface of blade body 1 runs through the length direction of blade body 1.
In the present embodiment, the insert body 1 is further provided with positioning surfaces 19 and 20 on the lower surfaces of the major cutting edge flank surfaces 6 at both ends 2 in the length direction.
The utility model relates to an indexable copying turning blade for processing a thrust wheel, which adopts a blade body 1, wherein at two ends 2 of the length, convex parts 3 with the outline projection in the shape of circular arc are respectively and convexly extended outwards along the width direction; in the insert body 1, at the positions corresponding to two short sides of the long square shape, a linear main cutting edge 4 is formed by intersecting the upper surface and the side surface, a main cutting edge rake face 5 is arranged by extending the main cutting edge 4 along the upper surface towards the inner side direction, and a main cutting edge flank face 6 is arranged by extending the main cutting edge along the side surface towards the lower side direction; in the insert body 1, at a position corresponding to the protruding part 3, an arc cutting edge 7 is formed by the intersection of the upper surface and the side surface, an arc cutting edge rake face 8 is arranged by extending the arc cutting edge along the upper surface in the inward direction, and an arc cutting edge flank face 9 is arranged by extending the arc cutting edge along the side surface in the downward direction; cutting rake angles alpha 1 and alpha 2 of the front cutting surface of the main cutting edge and the front cutting surface of the circular arc cutting edge and cutting relief angles beta 1 and beta 2 of the rear cutting surface of the main cutting edge and the rear cutting surface of the circular arc cutting edge are set to correspondingly change along with the shape change of the contour of a workpiece to be machined; the arc cutting edge 7 and the main cutting edge 4 are in tangent transition. According to the structure, the four arc cutting edges and the two linear cutting edges are arranged on one blade, so that the requirements of profile turning and end face turning can be met simultaneously, the arc cutting edges and the linear cutting edges are in smooth transition, no intersection point exists, and the perfect transition of the intersection of the arcs and the linear cutting edges on the inner wall of a machined workpiece can be ensured; the four-time transposition can be carried out by utilizing the four arc cutting edges, so that the economical efficiency of the blade is greatly improved; the utility model simultaneously arranges the chip breaker groove on each arc cutting edge and each straight cutting edge, thus reducing the processing resistance, reasonably breaking chips and improving the performance of the blade.
The foregoing is considered as illustrative of the preferred embodiments of the utility model and is not to be construed as limiting the utility model in any way. Although the present invention has been described with reference to the preferred embodiments, it is not intended to be limited thereto. Those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or equivalent modifications, without departing from the scope of the disclosed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should fall within the protection scope of the technical scheme of the present invention, unless the technical spirit of the present invention departs from the content of the technical scheme of the present invention.
Claims (10)
1. An indexable contour turning insert for machining thrust wheels, comprising an insert body; the projection of the outline of the blade body is in a long-strip square shape; among the blade body, its characterized in that: at the two ends of the length, convex parts with the outline projection in the shape of circular arc are respectively and convexly extended outwards along the width direction; the insert body having an upper surface, a bottom surface, and side surfaces; in the blade body, at the positions corresponding to two short sides of the long square shape, a linear main cutting edge is formed by intersecting an upper surface and a side surface, a front blade surface of the main cutting edge is arranged by extending the main cutting edge along the upper surface towards the inner side direction, and a rear blade surface of the main cutting edge is arranged by extending the main cutting edge along the side surface towards the lower side direction; in the blade body, an arc cutting edge is formed by the intersection of the upper surface and the side surface at the position corresponding to the protruding part, an arc cutting edge front blade surface is arranged by extending the arc cutting edge along the upper surface towards the inner side direction, and an arc cutting edge rear blade surface is arranged by extending the arc cutting edge along the side surface towards the lower side direction; the cutting rake angles of the front cutter surface of the main cutting edge and the front cutter surface of the arc cutting edge, and the cutting relief angles of the rear cutter surface of the main cutting edge and the rear cutter surface of the arc cutting edge are respectively set to correspondingly change along with the shape change of the profile of the workpiece to be machined; the arc cutting edge and the main cutting edge are in tangent transition.
2. The indexable contour turning insert for machining thrust wheels of claim 1, wherein: in the blade body, a chip breaker groove anti-chip surface of a main cutting edge with an anti-chip angle which changes correspondingly with the shape change of the profile of a machined workpiece is arranged in an extending way from the front tool surface of the main cutting edge to the inner side direction along the upper surface; the chip breaker groove anti-chip surface of the arc cutting edge with an anti-chip angle which correspondingly changes along with the change of the outline of the machined workpiece is arranged by extending the front tool surface of the arc cutting edge along the upper surface towards the inner side direction.
3. The indexable contour turning insert for machining thrust wheels of claim 1, wherein: a linear cutting edge zone is also arranged between the main cutting edge and the front tool surface of the main cutting edge; and an arc cutting edge zone is also arranged between the arc cutting edge and the front cutter face of the arc cutting edge.
4. The indexable contour turning insert for machining thrust wheels of claim 3, wherein: the linear cutting blade zone and the circular arc cutting blade zone have blade widths with the same width, and the width variation range is 0-1 mm.
5. The indexable contour turning insert for machining thrust wheels of claim 2, wherein: the change range of the cutting front angle of the main cutting edge is 0-60 degrees, the change range of the cutting rear angle is 0-45 degrees, and the change range of the chip-removing angle is 0-60 degrees.
6. The indexable contour turning insert for machining thrust wheels of claim 2, wherein: the change range of the cutting front angle of the arc cutting edge is 0-60 degrees, the change range of the cutting back angle is 0-45 degrees, and the change range of the chip-removing angle is 0-60 degrees.
7. The indexable contour turning insert for machining thrust wheels of claim 1, wherein: the angle range of the arc cutting edge is 0-180 degrees.
8. The indexable contour turning insert for machining thrust wheels of claim 1, wherein: in the side of blade body, in the position corresponding to two long limits of rectangular square shape, still be equipped with two holding surfaces that are parallel to each other.
9. The indexable contour turning insert for machining thrust wheels of claim 1, wherein: in the blade body, a V-shaped positioning groove with a V-shaped cross section is respectively arranged on the upper surface and the lower surface.
10. The indexable contour turning insert for machining thrust wheels of claim 9, wherein: the angle of the V shape of the V-shaped positioning groove is larger than 90 degrees and smaller than 180 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122542077.XU CN216632628U (en) | 2021-10-21 | 2021-10-21 | Indexable copying turning blade for machining thrust wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122542077.XU CN216632628U (en) | 2021-10-21 | 2021-10-21 | Indexable copying turning blade for machining thrust wheel |
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| Publication Number | Publication Date |
|---|---|
| CN216632628U true CN216632628U (en) | 2022-05-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122542077.XU Active CN216632628U (en) | 2021-10-21 | 2021-10-21 | Indexable copying turning blade for machining thrust wheel |
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| CN (1) | CN216632628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953547A (en) * | 2021-10-21 | 2022-01-21 | 厦门金鹭特种合金有限公司 | Indexable copying turning blade for machining thrust wheel |
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2021
- 2021-10-21 CN CN202122542077.XU patent/CN216632628U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113953547A (en) * | 2021-10-21 | 2022-01-21 | 厦门金鹭特种合金有限公司 | Indexable copying turning blade for machining thrust wheel |
| CN113953547B (en) * | 2021-10-21 | 2025-02-18 | 厦门金鹭特种合金有限公司 | An indexable profiling turning insert for machining track rollers |
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