CN112692313A - Numerical control turning tool for machining inner annular groove of O-shaped rubber ring die with die parting surface of 45 degrees - Google Patents
Numerical control turning tool for machining inner annular groove of O-shaped rubber ring die with die parting surface of 45 degrees Download PDFInfo
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- CN112692313A CN112692313A CN202011587802.9A CN202011587802A CN112692313A CN 112692313 A CN112692313 A CN 112692313A CN 202011587802 A CN202011587802 A CN 202011587802A CN 112692313 A CN112692313 A CN 112692313A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
- B23B27/06—Profile cutting tools, i.e. forming-tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B5/00—Turning-machines or devices specially adapted for particular work; Accessories specially adapted therefor
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Abstract
The invention relates to the technical field of machining, in particular to a numerical control turning tool for machining an inner annular groove of an O-shaped rubber ring die with a die parting surface of 45 degrees. The numerical control turning tool comprises a cutting part and a tool handle, wherein the cutting part comprises a front tool face, a rear tool face and a cutting edge; the intersection of the front cutter face and the rear cutter face is a cutting edge, and the section of a tool nose formed by the front cutter face, the rear cutter face and the cutting edge is a circle with the radius of R1. The rake angle gamma formed by the rake face and the horizontal plane is 16-18 degrees; the main back angle alpha formed by the back cutter face and the vertical plane is 9-11 degrees; the main deflection angle kappa gamma formed by the upper tangent line of the circular section of the cutter tip and the horizontal axis is 45-45.5 degrees. The rubber mold processing tool is simple to manufacture, low in cost and convenient to use, rubber mold processing within a certain specification range can be finished by one specification tool, and most of rubber mold processing in a workshop can be covered by only a plurality of specifications of tools.
Description
Technical Field
The invention relates to the technical field of machining, in particular to a numerical control turning tool for machining an inner annular groove of an O-shaped rubber ring die with a die parting surface of 45 degrees.
Background
The mold parting surface of the mold for manufacturing the O-shaped rubber ring is 45 degrees, the molding cutter with the same size as the ring groove is adopted for processing the ring groove in the mold, and a large number of molding cutters are required to process the mold due to more types of rubber rings processed in a workshop; moreover, the shrinkage rate of the rubber material is a range value, and a plurality of groups of molds with different inner ring groove sizes are often required to be manufactured when the rubber ring is manufactured in a trial mode, which is also finished by a plurality of groups of forming cutters, so that the manufacturing cost of the rubber mold is increased.
The cutter of processing rubber mold mostly is the shaping sword, and every kind of rubber mold all needs a cutter to go to accomplish so, and extravagant serious, cutter customization and processing cycle also can influence rubber mold processing cycle.
Disclosure of Invention
In view of the above, the invention provides a numerical control turning tool for machining an inner annular groove of an O-shaped rubber ring mold with a mold parting surface of 45 degrees, one specification of the tool can complete rubber mold machining within a certain specification range, and only several specifications of the tool can cover most of rubber mold machining in a workshop.
The technical scheme adopted by the invention is as follows:
the inner annular groove of the O-shaped rubber ring die with the die parting surface of 45 degrees is used for machining a numerical control turning tool, and the numerical control turning tool comprises a cutting part and a tool shank, wherein the cutting part is fixed at one end of the tool shank and comprises a front tool face, a rear tool face and a cutting edge; the intersection of the front cutter face and the rear cutter face is a cutting edge, and the section of a tool nose formed by the front cutter face, the rear cutter face and the cutting edge is a circle with the radius of R1. As shown in fig. 2(b), the rake surface is connected to the tool shank through an arc-shaped curved surface and a machining surface. The rake angle gamma formed by the rake face and the horizontal plane is 16-18 degrees; the main back angle alpha formed by the back cutter face and the vertical plane is 9-11 degrees; the main deflection angle kappa gamma formed by the upper tangent line of the circular section of the cutter tip and the horizontal axis is 45-45.5 degrees; the minor deflection angle kappa' gamma formed by the lower tangent line of the circular section of the cutter tip and the horizontal axis is 135-135.5 degrees.
Further, the whole cutter is a hard alloy rod.
Further, the knife handle is an unsharpened hard alloy bar.
The invention has the beneficial effects that:
the rubber mold processing tool is simple to manufacture, low in cost and convenient to use, rubber mold processing within a certain specification range can be finished by one specification tool, and most of rubber mold processing in a workshop can be covered by only a plurality of specifications of tools.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2(a) is a side view of the present invention;
FIG. 2(b) is a top view of the present invention;
fig. 3 is a schematic view of the tool machining.
In the figure: 1, cutting edge; 2, a front cutter face; 3, a rear cutter face; 4 knife handles.
Detailed Description
In order that the present invention may be more readily and clearly understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings.
Example 1:
referring to the attached drawings, the invention adopts an inner annular groove machining numerical control turning tool of an O-shaped rubber ring mould with a 45-degree parting surface, and comprises a cutting part and a tool handle 4, wherein the cutting part is fixed at one end of the tool handle 4 and comprises a front tool face 2, a rear tool face 3 and a cutting edge 1; the intersection of the rake face 2 and the flank face 3 is a cutting edge 1, and the section of a cutting edge formed by the rake face 2, the flank face 3 and the cutting edge 1 is a circle with the radius of R1. As shown in fig. 2(b), the rake face 2 is connected to the holder 4 by an arc-shaped curved surface and a machined surface. The rake angle gamma formed by the rake face 2 and the horizontal plane is 16 degrees; the main clearance angle alpha formed by the rear cutter face and the vertical plane is 9 degrees; a main deflection angle kappa gamma formed by an upper tangent line of the circular section of the cutter tip and a horizontal axis is 45.5 degrees; the minor offset angle kappa' gamma formed by the lower tangent of the circular section of the cutter tip and the horizontal axis is 45.5 degrees.
Example 2:
referring to the attached drawings, the invention adopts an inner annular groove machining numerical control turning tool of an O-shaped rubber ring mould with a 45-degree parting surface, and comprises a cutting part and a tool handle 4, wherein the cutting part is fixed at one end of the tool handle 4 and comprises a front tool face 2, a rear tool face 3 and a cutting edge 1; the intersection of the rake face 2 and the flank face 3 is a cutting edge 1, and the section of a cutting edge formed by the rake face 2, the flank face 3 and the cutting edge 1 is a circle with the radius of R1. As shown in fig. 2(b), the rake face 2 is connected to the holder 4 by an arc-shaped curved surface and a machined surface. The rake angle gamma formed by the rake face 2 and the horizontal plane is 18 degrees; the main clearance angle alpha formed by the rear cutter face and the vertical plane is 11 degrees; a main deflection angle kappa gamma formed by an upper tangent line of the circular section of the cutter tip and a horizontal axis is 45.5 degrees; the minor offset angle kappa' gamma formed by the lower tangent of the circular section of the cutter tip and the horizontal axis is 45.5 degrees. The whole cutter is a hard alloy bar, and the cutter handle 4 is an unsharpened hard alloy bar.
Example 3:
and (3) profiling the inner annular groove of the rubber ring mold by using a numerical control turning tool with a tool nose R1 smaller than the annular groove R of the rubber ring mold and combining a numerical control programming technology.
The requirement on the roughness of the inner ring groove of the rubber mold is high, so that the front angle gamma of the cutter is sharp when taking 16-18 degrees, the cutting resistance is small, the cutting heat is small, and the better processing roughness is convenient to obtain;
the main function of the main clearance angle alpha is to reduce the friction between the rear cutter face and the workpiece processing part, so as to improve the surface quality of the workpiece and prolong the service life of the cutter. The increase of the main back angle can make the cutting edge of the turning tool sharp, but can weaken the strength of the turning tool and can also make the heat dissipation condition worse, so the main back angle alpha is between 9 and 11 degrees;
the main deflection angle k gamma mainly affects the heat dissipation condition of the turning tool, the magnitude of the cutting component force, the change of the processing direction and the change of the cutting thickness. Theoretically, when a rubber mold with a 45-degree parting surface is machined, the machining requirement can be met by taking the main deflection angle kappa gamma of 45 degrees, and in order to avoid the influence of uncertain factors such as material resilience, machine tool precision and the like, the main deflection angle kappa gamma is taken to be 44.5 degrees;
the auxiliary deflection angle kappa ' gamma mainly reduces the friction between the auxiliary cutting edge and the machined surface of the workpiece, influences the surface machining quality of the workpiece and the strength of a turning tool, theoretically, when a rubber mold with a 45-degree parting surface is machined, the machining requirement can be met by taking the auxiliary deflection angle kappa ' gamma at 135 degrees, and in order to avoid the influence of uncertain factors such as material rebound and machine tool precision, the auxiliary deflection angle kappa ' gamma is taken at 135.5 degrees
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (3)
1. The inner ring groove processing numerical control lathe tool of the O-shaped rubber ring die with the die parting surface of 45 degrees comprises a cutting part and a tool shank (4), wherein the cutting part is fixed at one end of the tool shank (4), and is characterized in that:
the cutting part comprises a front cutter surface (2), a rear cutter surface (3) and a cutting edge (1); the cutting edge is characterized in that the joint of the front cutter face (2) and the rear cutter face (3) is a cutting edge (1), and the section of a tool nose formed by the front cutter face (2), the rear cutter face (3) and the cutting edge (1) is a circle with the radius of R1; the front knife face (2) is connected with the knife handle (4) through an arc-shaped curved surface and a processing surface; the rake angle gamma formed by the rake face (2) and the horizontal plane is 16-18 degrees; the main back angle alpha formed by the back cutter face and the vertical plane is 9-11 degrees; the main deflection angle kappa gamma formed by the upper tangent line of the circular section of the cutter tip and the horizontal axis is 45-45.5 degrees; the minor deflection angle kappa' gamma formed by the lower tangent line of the circular section of the cutter tip and the horizontal axis is 135-135.5 degrees.
2. The numerical control turning tool for machining the inner annular groove of the O-shaped rubber ring die with the die parting surface of 45 degrees as claimed in claim 1, wherein: the cutting part adopts a hard alloy rod.
3. The numerical control turning tool for machining the inner annular groove of the O-shaped rubber ring die with the die parting surface of 45 degrees as claimed in claim 1 or 2, wherein: the knife handle (4) is a hard alloy bar which is not sharpened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587802.9A CN112692313A (en) | 2020-12-28 | 2020-12-28 | Numerical control turning tool for machining inner annular groove of O-shaped rubber ring die with die parting surface of 45 degrees |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011587802.9A CN112692313A (en) | 2020-12-28 | 2020-12-28 | Numerical control turning tool for machining inner annular groove of O-shaped rubber ring die with die parting surface of 45 degrees |
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| Publication Number | Publication Date |
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| CN112692313A true CN112692313A (en) | 2021-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011587802.9A Pending CN112692313A (en) | 2020-12-28 | 2020-12-28 | Numerical control turning tool for machining inner annular groove of O-shaped rubber ring die with die parting surface of 45 degrees |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112296615A (en) * | 2020-10-13 | 2021-02-02 | 厦门众翰精密工业有限公司 | O-shaped sealing ring die and machining process thereof |
| CN114393219A (en) * | 2021-12-27 | 2022-04-26 | 贵阳万江航空机电有限公司 | Method for machining semicircular cavity of rubber mold core and universal cutter |
-
2020
- 2020-12-28 CN CN202011587802.9A patent/CN112692313A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112296615A (en) * | 2020-10-13 | 2021-02-02 | 厦门众翰精密工业有限公司 | O-shaped sealing ring die and machining process thereof |
| CN114393219A (en) * | 2021-12-27 | 2022-04-26 | 贵阳万江航空机电有限公司 | Method for machining semicircular cavity of rubber mold core and universal cutter |
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