An end mill insert

Abstract

The utility model relates to a vertical installation milling blade, and the middle of blade body has a center hole, and the blade body has two end faces and four side faces, one end face is bottom surface locating face, one side face is axial locating face, the other side face adjacent to axial locating face is lateral locating face, a locating recess is recessed on axial locating face, the edge line between the side face opposite to lateral locating face and the end face opposite to bottom surface locating face is provided with first cutting edge, and first cutting edge is on the side away from axial locating face, the blade body has bottom surface locating face, axial locating face and lateral locating face, the locating mode is various, and the universality is good, has two axial locating modes, when being installed on the ordinary cutter disc of inadjustable, axial locating face is combined with cutter disc body to realize axial locating, when being installed on the adjustable cutter disc with adjusting screw, locating recess is combined with the adjusting screw on cutter disc to realize axial locating, and the universality is good.

Description

Technical Field

[0001] This utility model relates to a milling insert, and more particularly to a vertically mounted milling insert, which belongs to a metal cutting tool for machining. Background Technology

[0002] Vertically mounted milling cutters are milling cutters that are installed vertically. Vertical mounting means the cutter is installed at a height, unlike conventional milling cutters. This installation method is designed for replaceable cutters, reducing operating costs. Vertically mounted milling cutters offer advantages such as convenient and quick cutter replacement, stable machining accuracy, high-precision hole machining, long service life, and adaptability to machining various materials, making them widely used.

[0003] Currently, the vertical milling inserts available on the market for mass production have only one axial positioning surface, resulting in poor versatility. One type of insert is installed on the non-adjustable cutter head, while another type of vertical milling insert is installed on the adjustable cutter head, which is not conducive to the standardized mass production of inserts. Utility Model Content

[0004] The purpose of this utility model is to provide a vertical milling insert to solve the problem of poor versatility of existing vertical milling inserts.

[0005] To solve the above problems, the vertical milling insert involved in this utility model adopts the following technical solution: a vertical milling insert includes an insert body with a central hole in the middle. The insert body has two end faces and four side faces. One end face is a bottom positioning surface, one side face is an axial positioning surface, and the other side face adjacent to the axial positioning surface is a lateral positioning surface. A positioning groove is recessed on the axial positioning surface. A first cutting edge is provided at the ridge line between the side face opposite to the lateral positioning surface and the end face opposite to the bottom positioning surface. The first cutting edge is located on the side away from the axial positioning surface.

[0006] A positioning groove is also provided on the side opposite to the axial positioning surface. The two positioning grooves are symmetrical. A second cutting edge is provided at the ridge line between the lateral positioning surface and the end face opposite to the bottom positioning surface. The second cutting edge is located on the side close to the axial positioning surface.

[0007] The positioning groove is crescent-shaped.

[0008] The radius of the cylindrical groove bottom of the positioning groove is between 1.2 and 2 mm.

[0009] The maximum distance between the positioning groove and the side surface is between 0.2 and 0.5 mm.

[0010] The center line of the positioning groove is parallel to the axis of the center hole of the blade body.

[0011] The central hole is a stepped hole, and the portion of the central hole near the bottom positioning surface is a small-diameter section.

[0012] The central hole has a transition section between the large-diameter section and the small-diameter section.

[0013] The center angle of the transition section is 60 degrees.

[0014] The lateral positioning surface and its opposite side surface are both inclined surfaces with an obtuse angle to the bottom positioning surface.

[0015] The blade body of this utility model has a bottom positioning surface, an axial positioning surface, and a lateral positioning surface, providing diverse positioning methods and good versatility. It has two axial positioning methods: when installed on a non-adjustable ordinary cutter head, the axial positioning surface fits into the cutter head body to achieve axial positioning; when installed on an adjustable cutter head with adjusting screws, the positioning groove fits into the adjusting screws on the cutter head to achieve axial positioning, providing good versatility.

[0016] The present invention also has a positioning groove on the side opposite to the axial positioning surface. The two positioning grooves are symmetrical. A cutting edge is also provided on the side opposite to the lateral positioning surface at the end near the axial positioning surface. It can be installed in two directions. When one cutting edge becomes dull, the other can be replaced. Two cutting edges can be replaced at once, and the replacement can be used for a longer period of time.

[0017] The lateral positioning surface and its opposite side surface of this invention are both obtuse angles between them and the bottom positioning surface. This makes it easy to install the cutting edge and ensures that the blade body does not interfere with the workpiece being cut. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below: Figure 1 This is a schematic diagram of the structure of existing vertical milling inserts; Figure 2 This is a schematic diagram of the structure of Embodiment 1 of this utility model; Figure 3 for Figure 2 The left view; Figure 4 This is one installation method on the cutter head according to Embodiment 1 of this utility model; Figure 5 This is another installation method on the cutter head according to Embodiment 1 of this utility model; Figure 6 This utility model relates to a cutting edge setting method for vertically mounted milling inserts; Figure 7This is Embodiment 2 of the present invention. Detailed Implementation

[0019] To make the technical objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain this utility model and are not intended to limit this utility model; that is, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] In the specific embodiment 1 of the vertical milling cutter involved in this utility model, in Figures 1-5 In the blade body 1, there is a central hole 2 in the middle. The blade body 1 has two end faces and four side faces. One end face is a bottom positioning surface 3, one side face is an axial positioning surface 5, and the other side face adjacent to the axial positioning surface 5 is a lateral positioning surface 4. A positioning groove 6 is recessed on the axial positioning surface 5. A first cutting edge 7 is provided at the ridge line between the side face opposite to the lateral positioning surface 4 and the end face opposite to the bottom positioning surface 3. The first cutting edge 7 is located on the side away from the axial positioning surface 5.

[0021] Furthermore, the positioning groove 6 is crescent-shaped. A crescent shape refers to the fact that the central angle of the cylindrical surface of the positioning groove is relatively small, resembling a crescent moon. In this embodiment, the central angle of the cylindrical surface of the positioning groove is less than 45 degrees.

[0022] Furthermore, the radius of the cylindrical groove bottom of the positioning groove 6 is selected between 1.2 and 2 mm.

[0023] Furthermore, the maximum distance between the positioning groove 6 and the side surface is selected between 0.2 and 0.5 mm.

[0024] Furthermore, the center line of the positioning groove 6 is parallel to the axis of the center hole 2 of the blade body.

[0025] Furthermore, the central hole 2 is a stepped hole, and the portion of the central hole 2 near the bottom positioning surface 3 is a small-diameter section.

[0026] Furthermore, there is a transition section between the large-diameter section and the small-diameter section of the central hole 2.

[0027] Furthermore, the center angle of the transition section is 60 degrees.

[0028] Furthermore, the lateral positioning surface 4 and its opposite side are both inclined surfaces with an obtuse angle to the bottom positioning surface 3.

[0029] The axial positioning surface and its opposite side are perpendicular to the bottom positioning surface. Meanwhile, the bottom positioning surface 3, which serves as the end face, is parallel to the other end face.

[0030] When using, such as Figure 4 As shown, it can be used on a non-adjustable cutter head, with the axial positioning surface 5 of the blade body 1 attached to the cutter head body 9 to achieve non-adjustable installation.

[0031] like Figure 5 As shown, it can also be installed on an adjusting cutter head. The positioning groove on the axial positioning surface 5 of the blade body 1 cooperates with the adjusting screw 10 on the cutter head body 9 to realize the axial adjustment of the blade body and achieve adjustable installation.

[0032] In the second specific embodiment of the vertical milling cutter involved in this utility model, in Figure 7 In this embodiment, the difference from embodiment 1 is only that: a positioning groove 6 is also provided on the side opposite to the axial positioning surface 5, the two positioning grooves 6 are centrally symmetrical, and a second cutting edge 8 is provided at the ridge line between the lateral positioning surface 4 and the end face opposite to the bottom positioning surface 3, the second cutting edge 8 is located on the side close to the axial positioning surface 5.

[0033] In the above embodiments, the center hole is a stepped hole, but it can also be a regular countersunk hole.

[0034] In the above embodiments, the lateral positioning surface and its opposite side surface are both obtuse angles with the bottom positioning surface. In other embodiments, the lateral positioning surface and its opposite side surface may also be perpendicular to the bottom positioning surface.

[0035] In the above embodiments, the first and second cutting edges can be made of the same cemented carbide material as the insert body, meaning the cutting edges are machined directly onto the insert body. In other embodiments, they can also be... Figure 6 As shown, polycrystalline diamond (PCD) is used as the cutting edge.

[0036] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this utility model. Any equivalent substitutions and modifications or partial substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of protection of the claims of this utility model.

Claims

1. A vertical milling insert, comprising an insert body having a central hole in the middle, and the insert body having two end faces and four side faces, characterized in that, One end face is the bottom positioning surface, one side face is the axial positioning surface, and the other side face adjacent to the axial positioning surface is the lateral positioning surface. A positioning groove is recessed on the axial positioning surface. A first cutting edge is provided at the ridge line between the side face opposite to the lateral positioning surface and the end face opposite to the bottom positioning surface. The first cutting edge is located on the side away from the axial positioning surface.

2. The vertical milling cutter according to claim 1, characterized in that, A positioning groove is also provided on the side opposite to the axial positioning surface. The two positioning grooves are symmetrical. A second cutting edge is provided at the ridge line between the lateral positioning surface and the end face opposite to the bottom positioning surface. The second cutting edge is located on the side close to the axial positioning surface.

3. The vertical milling cutter according to claim 2, characterized in that, The positioning groove is crescent-shaped.

4. The vertical milling cutter according to claim 3, characterized in that, The radius of the cylindrical groove bottom of the positioning groove is between 1.2 and 2 mm.

5. The vertical milling cutter according to claim 4, characterized in that, The maximum distance between the positioning groove and the side surface is between 0.2 and 0.5 mm.

6. The vertical milling insert according to any one of claims 1-5, characterized in that, The center line of the positioning groove is parallel to the axis of the center hole of the blade body.

7. The vertical milling cutter according to claim 1, characterized in that, The central hole is a stepped hole, and the portion of the central hole near the bottom positioning surface is a small-diameter section.

8. The vertical milling insert according to claim 7, characterized in that, The central hole has a transition section between the large-diameter section and the small-diameter section.

9. The vertical milling cutter according to claim 8, characterized in that, The center angle of the transition section is 60 degrees.

10. The vertical milling cutter according to claim 1, characterized in that, The lateral positioning surface and its opposite side surface are both inclined surfaces with an obtuse angle to the bottom positioning surface.

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