CN216178302U

CN216178302U - V-shaped blade forming cutter

Info

Publication number: CN216178302U
Application number: CN202122476820.6U
Authority: CN
Inventors: 盛胜利
Original assignee: Shanghai Taifeng Precision Cutting Tool Co ltd
Current assignee: Shanghai Taifeng Precision Cutting Tool Co ltd
Priority date: 2021-10-14
Filing date: 2021-10-14
Publication date: 2022-04-05
Anticipated expiration: 2031-10-14

Abstract

The utility model provides a V-shaped blade forming cutter, which comprises a cutter bar and a blade, wherein one side of the end part of the cutter bar is provided with a convex cutter head, the other side of the end part of the cutter bar is provided with a transitional tangent plane, and the section of the cutter head is in a right-angled triangle shape; a positioning clamping groove is formed in the sharp corner of the cutter head, the blade is fixed in the positioning clamping groove, and a cutting edge is formed in the side end face of the blade; the blade is divided into outer oblique cutting edge, protruding cutting edge, interior oblique concave cutting edge and linking sword in proper order from most advanced, and the outer oblique cutting edge of connection, protruding cutting edge and interior oblique concave cutting edge form V type incision shape, and outer oblique cutting edge just outwards carried on the back with the incline direction that links up the sword, and the incline direction of protruding cutting edge and interior oblique concave cutting edge is the same and carries on the back with the incline direction that links up the sword. In this application, according to the demand of work piece shape, the cutting edge forms V type incision shape through a plurality of inclined plane cooperations, thereby avoids cutting out the V type incision shape of needs through the locomotive cutter arbor, directly once only cuts out the V type incision shape of needs through the cutting edge, has shortened process time, can reduce the cutter cost.

Description

V-shaped blade forming cutter

Technical Field

The utility model relates to the field of precision cutters, in particular to a V-shaped blade forming cutter.

Background

In the prior art of complex contour machining, multiple cutters are usually adopted to complete multiple times of machining through a machine tool program, the machining time is long, the number of required cutters is large, and the machining cannot be completed by using a single cutter.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a V-shaped blade forming cutter which can process and form the outline of a workpiece at one time and shorten the processing time.

In order to achieve the purpose, the utility model provides a V-shaped blade forming cutter, which comprises a cutter bar (1) and a blade (2), wherein one side of the end part of the cutter bar (1) is a convex cutter head (11), the other side of the end part of the cutter bar is a transitional tangent plane (12), and the section of the cutter head (11) is in a right-angled triangle shape; a positioning clamping groove (13) is formed in the sharp corner of the cutter head (11), the blade (2) is fixed in the positioning clamping groove (13), and a cutting edge is formed in the side end face of the blade (2); the blade is divided into outer chamfer sword (31), protruding cutting edge (32), interior oblique concave cutting edge (33) and links up sword (34) in proper order from most advanced, connects outer chamfer sword (31), protruding cutting edge (32) and interior oblique concave cutting edge (33) form V type incision shape, outer chamfer sword (31) and the incline direction of linking sword (34) back to the back and outside, the incline direction of protruding cutting edge (32) and interior oblique concave cutting edge (33) is the same and with the incline direction of linking sword (34) back to the back.

Furthermore, in the V-shaped blade forming tool, an included angle between the outer beveling blade (31) and the axis of the blade is & lt A, an included angle between one side of the convex cutting blade (32) connected with the outer beveling blade (31) and the axis of the blade is & lt B, and & lt A & lt B; the included angle between one side of the inner inclined concave cutting edge (33) connected with the connection edge (34) and the axis of the blade is less than C, the included angle between the axes of the connection edge (34) and the blade is less than D, and less than C is less than D.

Further, in the V-shaped blade forming tool, the angle A is equal to angle D, and the angle B is equal to angle C.

Further, in the V-shaped blade forming tool, angle a is 5 ° ± 1 °, angle B is 20 ° ± 1 °, angle C is 20 ° ± 1 °, and angle D is 5 ° ± 1 °.

Further, in the V-shaped blade forming tool, the horizontal protrusion height of the convex cutting edge (32) based on the joint with the outer oblique cutting edge (31) is E, the horizontal depression depth of the inner oblique concave cutting edge (33) based on the joint with the connecting edge (34) is F, and E is not less than F.

Further, in the V-shaped blade forming cutter, a pair of symmetrically arranged plane cutting surfaces (4) are arranged on the side surface of the cutter rod (1).

Furthermore, in the V-shaped blade forming cutter, a through mounting hole (5) is formed in the center of the blade (2), and the blade (2) is fixed in the positioning clamping groove (13) through a screw which penetrates through the mounting hole (5).

Furthermore, in the V-shaped blade forming tool, the blade (2) is in a diamond shape, the cutting edge is arranged on the outer side of one end, opposite to the blade (2), of the blade, and the outer sides of the two ends of the blade (2) are arranged in a centrosymmetric mode.

Furthermore, in the V-shaped blade forming tool, a chip guide groove (6) is formed in the inner side of the cutting edge, and the chip guide groove (6) and one end face, provided with the cutting edge, of the blade (2) are parallel to each other.

Further, in the V-shaped blade forming tool, the outer edges of the chip guide grooves (6) on two sides of the blade (2) are formed into the shape of the cutting edge through tool grinding.

Compared with the prior art, the utility model has the following beneficial effects: and (3) grinding the profile of a formed cutting edge on two sides of the blade according to the profile of a workpiece by using a standard ISO turning blade as a blank body, and locking the cutter bar and the blade through screws by matching with a standard turning tool rod. Simultaneously, according to the demand of work piece shape, the cutting edge forms V type incision shape through a plurality of inclined plane cooperations, thereby avoids cutting out the V type incision shape of needs through the locomotive cutter arbor, directly once only cuts out the V type incision shape of needs through the cutting edge, has shortened process time, can reduce the cutter cost.

Drawings

FIG. 1 is a schematic perspective view of a V-shaped blade forming tool according to the present invention;

FIG. 2 is a left side view schematically illustrating the structure of the V-shaped blade forming tool of the present invention;

FIG. 3 is a front view of the V-shaped blade forming tool of the present invention;

FIG. 4 is a schematic top view of the V-shaped blade forming tool of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 4;

fig. 6 is a schematic view of the structure of the blade of the present invention.

Wherein: the cutter comprises a cutter bar (1), a cutter head (11), a transition section (12), a positioning clamping groove (13), a blade (2), an outer oblique cutting edge (31), a convex cutting edge (32), an inner oblique concave cutting edge (33), a connecting edge (34), a plain section (4), a mounting hole (5) and a chip guide groove (6).

Detailed Description

The V-blade forming tool of the present invention will now be described in greater detail with reference to the schematic drawings, in which preferred embodiments of the utility model are shown, it being understood that one skilled in the art could modify the utility model herein described while still achieving the advantageous effects of the utility model. Accordingly, the following description should be construed as broadly as possible to those skilled in the art and not as limiting the utility model.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated without limiting the specific scope of protection of the present invention.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The utility model is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become more apparent from the following description. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention.

As shown in fig. 1 to 4, the present invention provides a V-shaped blade forming tool, which includes a tool bar 1 and a blade 2, wherein one side of the end of the tool bar 1 is a convex tool bit 11, the other side is a transition tangent plane 12, and the cross section of the tool bit 11 is in a right triangle shape; the sharp corner of the cutter head 11 is provided with a positioning clamping groove 13, the blade 2 is fixed in the positioning clamping groove 13, and the side end face of the blade 2 is provided with a cutting edge.

Specifically, as shown in fig. 5, the cutting edge is sequentially divided into an outer oblique cutting edge 31, a convex cutting edge 32, an inner oblique concave cutting edge 33 and a connecting edge 34 from the tip, the connected outer oblique cutting edge 31, convex cutting edge 32 and inner oblique concave cutting edge 33 form a V-shaped cut shape, the inclination directions of the outer oblique cutting edge 31 and the connecting edge 34 are opposite and outward, the outer oblique cutting edge 31 and the connecting edge 34 inclined to the outer two sides are used for smoothly transitioning the cut edge, and the cut edge is prevented from being too sharp. The inclination directions of the convex cutting edge 32 and the inner oblique concave cutting edge 33 are the same and are opposite to the inclination direction of the connecting edge 34. The equidirectional protruding cutting edge 32 and interior oblique concave cutting edge 33 have guaranteed promptly that the incision shape is interior oblique V-arrangement, have the cutting degree of difficulty that can avoid reverse angle, and the cisoid cutting can reduce the cutting dynamics, increases cutting speed.

The included angle between the outer beveling edge 31 and the axis of the blade is & lt A, the included angle between the side of the convex cutting edge 32 connected with the outer beveling edge 31 and the axis of the blade is & lt B, and & lt A & lt B; the included angle between the side of the inner inclined concave cutting edge 33 connected with the connecting edge 34 and the axis of the blade is < C, the included angle between the axes of the blades of the connecting edge 34 is < D, and < C > D. In this embodiment, angle a is equal to angle D and angle B is equal to angle C. Preferably, angle a is 5 ° ± 1 °, angle B is 20 ° ± 1 °, angle C is 20 ° ± 1 °, and angle D is 5 ° ± 1 °.

Meanwhile, as shown in FIG. 5, the convex cutting edge 32 has a horizontal convex height E based on the joint with the outer chamfered edge 31, and the inner chamfered cutting edge 33 has a horizontal concave depth F based on the joint with the joining edge 34, and E.gtoreq.F.

Further, in this embodiment, as shown in fig. 1 to 4, a pair of symmetrically arranged flat surfaces 4 is disposed on the side surface of the cutter bar 1, so that the cutter bar 1 can be clamped and fixed by the flat surfaces 4 on the upper and lower sides of the machine tool, the fixture, and the like, and the situation that the cylindrical cutter bar 1 is loosened by rotation during the process of clamping for selecting work can be avoided.

The center of the blade 2 is provided with a through mounting hole 5, and the blade 2 is fixed in the positioning clamping groove 13 through a screw penetrating through the mounting hole 5. Specifically, as shown in fig. 4 and 6, the blade 2 is diamond-shaped, a cutting edge is arranged on the outer side of one end of the blade 2 opposite to the cutting edge, and the outer sides of two ends of the blade 2 are arranged in a centrosymmetric manner.

Further, in the present embodiment, as shown in fig. 1 and 4, the inner side of the cutting edge is provided with a chip guide groove 6, and the chip guide groove 6 is parallel to one end surface of the blade 2 provided with the cutting edge. When the turning tool cuts, the chips cut by the blade 2 at the cutting edge are firstly placed in the chip guide groove 6 and thrown outwards along the arc shape of the chip guide groove 6, so that the accumulation of the chips is avoided.

In addition, the outer edges of the chip guide grooves 6 on both sides of the blade 2 are ground by a tool to form the shape of a cutting edge.

In summary, in the present embodiment, the proposed V-shaped insert forming tool uses a standard ISO turning insert as a blank, the profile of the forming edge is ground on both sides of the insert according to the profile of the workpiece, and the tool bar and the insert are locked by a screw in cooperation with a standard turning tool bar. Simultaneously, according to the demand of work piece shape, the cutting edge forms V type incision shape through a plurality of inclined plane cooperations, thereby avoids cutting out the V type incision shape of needs through the locomotive cutter arbor, directly once only cuts out the V type incision shape of needs through the cutting edge, has shortened process time, can reduce the cutter cost.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any way. It will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The V-shaped blade forming cutter is characterized by comprising a cutter bar (1) and a blade (2), wherein one side of the end part of the cutter bar (1) is provided with a convex cutter head (11), the other side of the end part of the cutter bar is provided with a transitional tangent plane (12), and the section of the cutter head (11) is in a right-angled triangle shape; a positioning clamping groove (13) is formed in the sharp corner of the cutter head (11), the blade (2) is fixed in the positioning clamping groove (13), and a cutting edge is formed in the side end face of the blade (2); the blade is divided into outer chamfer sword (31), protruding cutting edge (32), interior oblique concave cutting edge (33) and links up sword (34) in proper order from most advanced, connects outer chamfer sword (31), protruding cutting edge (32) and interior oblique concave cutting edge (33) form V type incision shape, outer chamfer sword (31) and the incline direction of linking sword (34) back to the back and outside, the incline direction of protruding cutting edge (32) and interior oblique concave cutting edge (33) is the same and with the incline direction of linking sword (34) back to the back.

2. The V-shaped blade forming tool as claimed in claim 1, wherein the included angle between the outer beveling edge (31) and the axis of the blade is ≦ A, the included angle between the side of the convex cutting edge (32) that is connected with the outer beveling edge (31) and the axis of the blade is ≦ B, and ≦ A ≦ B; the included angle between one side of the inner inclined concave cutting edge (33) connected with the connection edge (34) and the axis of the blade is less than C, the included angle between the axes of the connection edge (34) and the blade is less than D, and less than C is less than D.

3. The V-shaped blade forming tool as claimed in claim 2, wherein angle a is angle D and angle B is angle C.

4. The V-shaped blade forming tool as claimed in claim 2, characterized in that angle a is 5 ° ± 1 °, angle B is 20 ° ± 1 °, angle C is 20 ° ± 1 °, and angle D is 5 ° ± 1 °.

5. The V-shaped blade forming tool as set forth in claim 1, wherein the convex cutting edge (32) has a horizontal protrusion height E based on the contact with the outer chamfer cutting edge (31), and the inner chamfer cutting edge (33) has a horizontal depression depth F based on the contact with the engagement edge (34), and E is not less than F.

6. The V-blade forming tool according to claim 1, characterized in that the side surface of the shank (1) is provided with a pair of symmetrically arranged planar facets (4).

7. The V-blade forming tool according to claim 1, wherein the center of the blade (2) is provided with a through mounting hole (5), and the blade (2) is fixed in the positioning slot (13) by a screw passing through the mounting hole (5).

8. The V-shaped blade forming tool according to claim 1, wherein the blade (2) is diamond-shaped, the cutting edge is arranged at the outer side of the opposite end of the blade (2), and the cutting edge is arranged at the outer side of the two ends of the blade (2) in a centrosymmetric manner.

9. The V-shaped insert forming tool according to claim 8, wherein the inner side of the cutting edge is provided with chip guide grooves (6), and the chip guide grooves (6) are parallel to an end surface of the insert (2) provided with the cutting edge.

10. The V-blade forming tool according to claim 9, wherein the shape of the cutting edge is formed by tool grinding at the outer edges of the chip-guide grooves (6) on both sides of the blade (2).