CN215468166U - Indexable turning tool - Google Patents
Indexable turning tool Download PDFInfo
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- CN215468166U CN215468166U CN202121433163.0U CN202121433163U CN215468166U CN 215468166 U CN215468166 U CN 215468166U CN 202121433163 U CN202121433163 U CN 202121433163U CN 215468166 U CN215468166 U CN 215468166U
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Abstract
The utility model provides an indexable turning tool, which comprises an end face and a cutting edge arranged on the edge of the end face; the cutting edge comprises a main cutting edge, a transition cutting edge and an arc cutting edge which are sequentially connected, wherein the edge width W1 of the transition cutting edge is larger than the edge width W2 of the main cutting edge and the edge width W3 of the arc cutting edge; the end face is respectively provided with a chip breaker with the outer edge connected with the cutting edge and a chip-removing platform connected with the inner edge of the chip breaker. The utility model aims to provide an indexable turning insert which can easily break chips even when the cutting depth is less than or equal to 0.2 mm.
Description
Technical Field
The utility model belongs to the field of machining tools, and particularly relates to an indexable turning tool.
Background
The train wheel can be worn and deformed after being used for a long time, and potential safety hazards can be brought to the running of a train by continuously using the worn and deformed train wheel. Therefore, the outer shape of the train wheel after a certain period of use needs to be repaired with a tool. The repair margin is very small, the turning blade is generally used for repair, and in the repair machining process, when the cutting depth of the existing indexable turning blade at home and abroad is less than or equal to 0.2mm, the chips are very long strip-shaped. The overlong strip-shaped chips are easily wound on the cutter and the machine tool, and damage to the cutter and the machine tool is caused. Long chips can also scratch the machined surface, affecting the surface quality of the workpiece. The operator then has to clean these long cuttings with long iron hooks, which also constitutes a safety risk for the operator. Therefore, the indexable turning insert for repairing and processing train wheels at home and abroad has the problem of no cutting when the cutting depth is less than or equal to 0.2mm, which causes the above adverse effects.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide an indexable turning insert that is easy to chip down also at a cutting depth of 0.2mm or less.
This patent scheme provides an indexable turning cutter, includes: the cutting edge is arranged on the edge of the end face; the cutting edge comprises a main cutting edge, a transition cutting edge and an arc cutting edge which are sequentially connected, wherein the edge width W1 of the transition cutting edge is larger than the edge width W2 of the main cutting edge and the edge width W3 of the arc cutting edge; the end face is respectively provided with a chip breaker with the outer edge connected with the cutting edge and a chip-removing platform connected with the inner edge of the chip breaker.
Specifically, the maximum edge width M of the transition cutting edge is between 0.16mm and 0.8 mm.
Specifically, the extension lines of any two adjacent main cutting edges intersect to form a virtual intersection point, the distance from the widest part of the transition cutting edge to the intersection point is K, and K is between 1mm and 6 mm.
Specifically, the included angle between the inner edge of the transition edge and the main cutting edge connected with the transition edge is beta, and the beta is 5-45 degrees.
Specifically, the edge width W3 of the arc cutting edge is between 0.08mm and 0.4 mm.
The side surface comprises a plurality of main side surfaces and arc side surfaces connecting the adjacent main side surfaces; the cutting edge is formed by the intersection of the end surface and the side surface.
Further, the main cutting edge and the circular arc cutting edge are formed by intersecting the end face with the main side face and the circular arc side face respectively.
Specifically, the radius r of the arc side surface is between 1mm and 5 mm.
Specifically, the included angle alpha between any two adjacent main side faces is 77-103 degrees.
Further, the cutting edge is connected to the flank by a chamfer or rounding.
The improvement of this patent brings the following advantage:
(1) the indexable turning tool comprises an end face and a cutting edge arranged on the edge of the end face; the cutting edge comprises a main cutting edge, a transition cutting edge and an arc cutting edge which are connected in sequence, and the edge width W1 of the transition cutting edge is larger than the edge width W2 of the main cutting edge and the edge width W3 of the arc cutting edge; the end surface is also respectively provided with a chip breaker with the outer edge connected with the cutting edge and a chip-removing platform connected with the inner edge of the chip breaker. The edge width of the transition cutting edge is wider than that of the cutting edges at the other two ends, and the relatively widened transition cutting edge is equivalent to a chip-resisting platform when the cutting depth is small (such as the cutting depth is less than or equal to 0.2mm), so that the bending and breaking of chips are facilitated, and the chip-breaking effect is achieved.
(2) The chip breaker groove forms one part of the front tool face of the blade, the chip breaker groove is a concave groove, the outer edge of the chip breaker groove is connected with the cutting edge band to form a front angle of the blade, the inner edge of the chip breaker groove is connected with the chip counter table to form a chip counter angle of the blade, the chip breaker groove has the function of enabling cut chips to smoothly flow out and bending the chips so as to break the chips finally, and overlong chips can wind a cutter and a workpiece, are not beneficial to continuous cutting and can also bring potential safety hazards to operators.
(3) The chip-resisting platform is used for bending chips and providing a supporting surface in the cutting process, so that the area of the chip-resisting platform cannot be too small, otherwise, the pressure intensity is too large, and the area needs to be dispersed as much as possible, so that the stability in the machining process can be improved.
(4) As an improvement, the side surface comprises a plurality of main side surfaces and an arc side surface connecting the adjacent main side surfaces, the side surfaces form a rear cutter surface of the cutter, and the side surfaces are connected with an upper end surface and a lower end surface. The included angle between any two adjacent main side surfaces forms the tool nose (namely, the arc side surface) of the tool. The angle of the knife tip is alpha (namely the included angle alpha between any two adjacent main side surfaces), the alpha is between 77 degrees and 103 degrees, and the larger the alpha is, the higher the strength of the knife tip is. When the chip is cut by the cutting edge and bent by the chip breaker, the chip bends and extends from the end surface to the side surface, and the tip of the chip strikes the side surface and is finally broken.
(5) As an improvement, any two adjacent main side surfaces are connected and transited through arc side surfaces, the arc radius of the tool nose (namely the arc side surfaces) is r, and r is between 1mm and 5 mm. The larger r is, the larger the radial force in the machining process is, and the size of r is also an important factor influencing the surface quality of the workpiece.
(6) As an improvement, the cutting edge is connected to the flank by a chamfer or rounding. The chamfering is connected and transited by a small inclined plane, and the rounding is connected and transited by a small smooth curved surface. The purpose of chamfering or rounding is to improve the strength of the cutting edge, remove the defects such as burrs and micro-gaps left in the manufacturing process of the cutter, and further improve the service life of the cutter.
Drawings
Fig. 1 is a schematic perspective view of an indexable turning tool according to an embodiment of the present disclosure;
FIG. 2 is a schematic top view of an indexable turning tool according to an embodiment of the present disclosure;
FIG. 3 is a side view schematic of an indexable turning tool according to an embodiment of the present disclosure;
FIG. 4 is an enlarged view at A in FIG. 2;
wherein, 1 is the terminal surface, 2 is the cutting edge, 21 is main cutting edge, 22 is transition cutting edge, 221 is the interior limit of transition cutting edge, 23 is the circular arc cutting edge, 3 is the chip breaker, 4 is anti-bits platform, 5 is the intersection point, 6 is the side, 61 is the leading flank, 62 is the circular arc side, 7 is the through-hole, M is the biggest sword width of transition cutting edge, K is the widest department of transition cutting edge to the distance of intersection point, and alpha is arbitrary two adjacent contained angle between the leading flank, beta is the interior limit of transition cutting edge and the contained angle of the main cutting edge that meets, and r is the circular arc radius of circular arc side, and D is the diameter of through-hole.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example 1 of the present application, as shown in fig. 1 to 4, is an indexable turning tool in which the basic shape of the tool body may be a rectangular parallelepiped with rounded edges, including
The end surfaces 1 are provided with a plurality of grooves,
the end surface 1 may be an end surface 1, such as the upper surface of a tool; it is also possible to have two end faces 1 arranged opposite, for example the upper and lower faces of the tool; the structure of the lower surface is the same as that of the upper surface, the lower surface is generally quadrangular, the length is L, the width is B, and the distance between the upper surface and the lower surface forms the thickness T of the cutter; the end face 1 serves as a rake face of a tool when cutting a workpiece;
a cutting edge 2 provided at the edge of the end face 1;
the cutting edge 2 is generally used for cutting a workpiece made of a material such as metal; the cutting edge 2 can be arranged on all edges of the end surface 1, or can be arranged on one side edge of the end surface 1; in order to increase the economy of the tool, it is preferred that all edges are provided with cutting edges 2; the cutting edge 2 comprises a main cutting edge 21, a transition cutting edge 22 and an arc cutting edge 23 which are connected in sequence; the cutting edge 2 may be a continuous annular band or may be discontinuous (interrupted by some depressed or raised areas); the main cutting edge 21 is a straight edge extending in a straight line, the circular arc cutting edge 23 is a circular arc cutting edge, the transition cutting edge 22 is located between the two cutting edges and connects the two cutting edges, the edge width of the transition cutting edge 22 is wider than that of the other two cutting edges 2, specifically, the edge width W1 of the transition cutting edge 22 is larger than the edge width W2 of the main cutting edge 21 and the edge width W3 of the circular arc cutting edge 23; the shape of the transition cutting edge 22 can be a hill-like shape as shown in fig. 4, the middle part is the highest point (the widest part of the edge width), the transition cutting edge gradually narrows towards two sides, and then is respectively connected with the main cutting edge 21 and the arc cutting edge 23 in a smooth transition way; the transition cutting edge 22 is equivalent to the chip-resisting table 4 when the cutting depth is small (such as the cutting depth is less than or equal to 0.2mm), so that the bending and breaking of chips are facilitated, the chip-breaking effect is achieved, and the cutting edge 2 has the function of finishing metal cutting;
as shown in fig. 4, in particular, the maximum edge width M of the transition cutting edge 22 is between 0.16mm and 0.8 mm;
as shown in fig. 4, optionally, the extended lines of any two adjacent main cutting edges 21 intersect to form a virtual intersection point 5, the distance from the widest part of the transition cutting edge 22 to the intersection point 5 is K, and K is between 1mm and 6 mm; the distance K here means: the distance in the direction of extension of the main cutting edge 21 adjoining the transition cutting edge 22;
as shown in fig. 4, optionally, the inner edge 221 of the transition edge cutting edge is at an angle β with the adjoining main cutting edge 21, where β is between 5 ° and 45 °; the inner edge refers to the edge where the transition cutting edge 22 is connected with the chip breaker groove 3 and is relatively close to the center of the end face;
optionally, the edge width W3 of the circular arc cutting edge 23 is between 0.08mm and 0.4 mm;
the end surface 1 is respectively provided with a chip breaker groove 3 with the outer edge connected with the cutting edge 2 and a chip-resisting platform 4 connected with the inner edge of the chip breaker groove 3; the chip breaker groove 3 is a groove concavely arranged on the end surface 1 and extends along the cutting edge 2; the outer edge of the chip breaker groove 3 is connected with the cutting edge 2 to form a front angle of the blade, the inner edge of the chip breaker groove 3 is connected with the chip counter table 4 to form a chip counter angle of the blade, the chip breaker groove 3 has the function of enabling cut chips to smoothly flow out and bending the chips so as to break the chips finally, and the overlong chips can be wound around a cutter and a workpiece and are not beneficial to continuous cutting;
the raised part of the anti-chip platform 4 and the end surface 1 are a larger horizontal plane, the anti-chip platform 4 can be a continuous surface or discontinuous (separated by some concave areas), the anti-chip platform 4 is used for bending chips and providing a supporting surface in the cutting process, so that the area of the anti-chip platform 4 cannot be too small, otherwise, the pressure intensity is too large, and the area needs to be dispersed as much as possible, so that the stability in the machining process can be improved.
An indexable turning tool according to embodiment 2 of the present application, as shown in fig. 1-4, is substantially the same as embodiment 1 except that it further comprises a side surface 6, the side surface 6 intersecting the end surface 1 to form a cutting edge 2, the side surface 6 comprising major side surfaces 61 and rounded side surfaces 62 connecting adjacent major side surfaces 61; the major side 61 is a substantially flat plane and the circular arc side 62 is substantially semicircular in cross section; as shown in fig. 2, specifically, the arc radius r of the arc side surface 62 is between 1mm and 5 mm; as shown in fig. 2, in particular, the included angle α between any two adjacent major side surfaces 61 is between 77 ° and 103 °; the cutting edge 2 can be connected with the side surface 6 in a transition way through chamfering or rounding; the chamfering is a small inclined surface connection transition, the rounding is a small round curved surface connection transition, and the chamfering or rounding aims to improve the strength of the cutting edge 2 and remove the defects of burrs, micro gaps and the like left in the manufacturing process of the cutter, so that the service life of the cutter is prolonged.
Alternatively, the major cutting edge 21 and the circular arc cutting edge 23 are formed by the intersection of the end surface 1 with the major side surface 61 and the circular arc side surface 62, respectively.
As shown in fig. 3, optionally, a through hole 7 is formed in the middle of the main side surface 61 or the middle of the end surface 1, the diameter of the through hole 7 is D, D is not less than 4.8mm and not more than 10mm, two ends of the through hole 7 are generally provided with chamfers, the chamfers have a guiding function when being installed, and the through hole 7 is used for facilitating installation and fixation of the blade on the turning cutter bar.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An indexable turning tool comprising an end face, a cutting edge disposed at an edge of the end face; the cutting edge comprises a main cutting edge, a transition cutting edge and an arc cutting edge which are sequentially connected, wherein the edge width W1 of the transition cutting edge is larger than the edge width W2 of the main cutting edge and the edge width W3 of the arc cutting edge; the end face is respectively provided with a chip breaker with the outer edge connected with the cutting edge and a chip-removing platform connected with the inner edge of the chip breaker.
2. An indexable turning tool according to claim 1 wherein the maximum edge width M of the transition cutting edge is between 0.16mm and 0.8 mm.
3. An indexable turning tool according to claim 1 wherein extensions of any two adjacent major cutting edges intersect to form an imaginary intersection point, the widest point of the transition cutting edge being at a distance K from the intersection point, K being between 1mm and 6 mm.
4. An indexable turning tool according to claim 1 wherein the angle between the inner edge of the transition edge and the adjoining main cutting edge is β, β being between 5 ° and 45 °.
5. An indexable turning tool according to claim 1 wherein the width W3 of the radiused cutting edge is between 0.08mm and 0.4 mm.
6. The indexable turning tool of claim 1 further comprising side surfaces comprising major side surfaces, radiused side surfaces joining adjacent major side surfaces; the cutting edge is formed by the intersection of the end surface and the side surface.
7. The indexable turning tool of claim 6 wherein the major cutting edge and the radiused cutting edge are formed by the end surface intersecting the major side surface and the radiused side surface, respectively.
8. An indexable turning tool according to claim 6 or 7, wherein the radius r of the circular arc side surface is between 1mm and 5 mm.
9. An indexable turning tool according to claim 6 or 7, wherein the included angle α between any two adjacent major side surfaces is between 77 ° and 103 °.
10. An indexable turning tool according to claim 6 or 7, wherein the cutting edge merges with the side face by a chamfer or radius.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121433163.0U CN215468166U (en) | 2021-06-25 | 2021-06-25 | Indexable turning tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121433163.0U CN215468166U (en) | 2021-06-25 | 2021-06-25 | Indexable turning tool |
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| Publication Number | Publication Date |
|---|---|
| CN215468166U true CN215468166U (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121433163.0U Active CN215468166U (en) | 2021-06-25 | 2021-06-25 | Indexable turning tool |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117644221A (en) * | 2024-01-30 | 2024-03-05 | 赣州澳克泰工具技术有限公司 | Cutting insert and cutting tool with stable cutting |
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2021
- 2021-06-25 CN CN202121433163.0U patent/CN215468166U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117644221A (en) * | 2024-01-30 | 2024-03-05 | 赣州澳克泰工具技术有限公司 | Cutting insert and cutting tool with stable cutting |
| CN117644221B (en) * | 2024-01-30 | 2024-04-05 | 赣州澳克泰工具技术有限公司 | Cutting insert and cutting tool with stable cutting |
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