CN217070994U

CN217070994U - Slotting tool

Info

Publication number: CN217070994U
Application number: CN202220225687.9U
Authority: CN
Inventors: 康梦利; 邢建军; 冯军伟; 李和鑫
Original assignee: Funik Ultrahard Material Co Ltd
Current assignee: Funik Ultrahard Material Co Ltd
Priority date: 2022-01-27
Filing date: 2022-01-27
Publication date: 2022-07-29
Anticipated expiration: 2032-01-27

Abstract

The utility model provides a slotting cutter, which comprises a cutter bar, wherein one end of the cutter bar is provided with a pressing plate and a cutter bar fixing surface, and a cutter body is arranged in the cutter bar fixing surface through the pressing plate and a screw; one end of the cutter body is respectively provided with a bottom positioning surface, a pressing surface matched with the pressing plate and a tail positioning surface matched with the cutter bar fixing surface, the other end of the cutter body is provided with a cutter head, and the edge of the cutter head is provided with a cutting edge; the inner side of the cutting edge is provided with a chip breaker groove, the chip breaker groove comprises a groove bottom and a groove surface which is obliquely arranged, one side of the groove bottom is connected with the cutting edge, and the other side of the groove bottom is connected with the bottom of the groove surface. This groove sword all sets up the inclination face respectively through afterbody, bottom and the upper portion at the groove blade and as pressing surface, afterbody locating surface and bottom locating surface, can be so that when this groove blade of clamping, the location is more accurate, and the processing stability is better.

Description

Slotting tool

Technical Field

The utility model relates to a cutting tool field, specific theory has related to a slotting cutter.

Background

With the continuous development of science and technology, the design shape of the workpiece is more complex, and the processing difficulty is more and more high. In the machining process, the cutting speed is changed continuously in the machining process, particularly in the cutting process, the cutting speed is changed from the maximum value to zero, and therefore the cutting force is changed continuously. Meanwhile, in the machining process, the front angle and the rear angle of the cutter are constantly changed, and the blade can be subjected to cutting impact force with constantly changing magnitude. And if the clamping force on the slot cutter is insufficient, the slot cutter is easy to shake, the chip is difficult to break, the surface of a workpiece is easy to scratch, the wear resistance of the blade is reduced, and the service life of the blade is short.

Application number 202010705641.2's patent application discloses a novel chip breaking platform groove sword, this novel chip breaking platform groove sword includes: a cutter body; the cutter head is arranged at the end part of the cutter body, and a cutting edge is arranged at the edge position of the cutter head; the chip breaking table is arranged on the cutter head and comprises a table bottom and a table wall, the table bottom is connected with the cutting edge, the table wall is arranged on one side, away from the cutting edge, of the table bottom, the table bottom and the table wall are not coplanar, the intersection line of the table bottom and the table wall comprises a plurality of connecting sections, and a curve transition section is arranged between every two adjacent connecting sections. Through the technical scheme that this application provided, can solve the difficult problem of chip breaking in the groove course of working among the prior art. But the slotting tool does not solve the problem of good clamping stability.

In order to solve the above problems, people are always seeking an ideal technical solution.

SUMMERY OF THE UTILITY MODEL

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a slotting cutter comprises a cutter bar, wherein one end of the cutter bar is provided with a pressing plate and a cutter bar fixing surface, and a cutter body is arranged in the cutter bar fixing surface through the pressing plate and a screw;

one end of the cutter body is respectively provided with a bottom positioning surface, a pressing surface matched with the pressing plate and a tail positioning surface matched with the cutter bar fixing surface, the other end of the cutter body is provided with a cutter head, and the edge of the cutter head is provided with a cutting edge;

the inner side of the cutting edge is provided with a chip breaker groove, the chip breaker groove comprises a groove bottom and a groove surface which is obliquely arranged, one side of the groove bottom is connected with the cutting edge, and the other side of the groove bottom is connected with the bottom of the groove surface.

Based on the above, in order to improve the chip breaking efficiency, the groove surface is formed by mutually connecting a plurality of inclined surfaces to form a saw-toothed structure.

Based on the above, in order to improve the clamping stability, the pressing surface is arranged obliquely, and the included angle between the pressing surface and the cross section of the cutter body is 10-30 degrees.

Based on the above, in order to improve the clamping stability, the tail positioning surface is obliquely arranged, and the included angle between the tail positioning surface and the longitudinal section of the cutter body is 10 degrees to 30 degrees.

Based on the above, in order to improve the clamping stability, the bottom positioning surface is inclined inwards, and the angle value of the included angle between the bottom positioning surface and the cross section of the cutter body is 10 degrees to 30 degrees.

Based on the above, the cutter bar fixing surface is an inclined surface matched with the bottom positioning surface, and the included angle between the cutter bar fixing surface and the cross section of the cutter body is 10 degrees to 30 degrees. Specifically, the included angle is 10 ° to 30 ° because the included angle does not play a role in improving the clamping stability when the included angle is too small, and the structural strength of the tool bit can be reduced when the included angle is too large.

Based on the aforesaid, the cutting edge is including the left side sword, end sword and the right side sword that link up in proper order, the end sword with one side of tank bottom is connected.

The utility model discloses relative prior art has substantive characteristics and progress, specific theory, the utility model provides a pair of groove sword through the chip breaker groove that is the wave handing-over and forms at tool bit portion position setting by tank bottom and groove face, can be at the effective chip breaking of cutting in-process, and can in time chip removal to avoid the phenomenon of smear metal fish tail work surface, improved machined surface quality and machining precision.

Furthermore, the inclined angle surfaces are respectively arranged at the tail part, the bottom part and the upper part of the slot blade to serve as the pressing surface, the tail part positioning surface and the bottom positioning surface, so that when the slot blade is clamped, the positioning is more accurate, and the processing stability is better.

Furthermore, the positioning surface is designed into an inner inclined surface structure with the outer side higher than the inner side, so that the blade is not easy to loosen during processing, and the blade cannot collapse or influence the surface quality of a workpiece due to the vibration of the blade.

Drawings

Fig. 1 is a schematic view of the overall assembly structure of the slotting cutter provided by the utility model.

Fig. 2 is a schematic structural view of a slot blade in a slot cutter provided by the present invention.

Fig. 3 is a schematic view of a structure of a middle blade of a slotting cutter provided by the present invention.

Fig. 4 and fig. 5 are schematic views of the end face structure of the slot cutter provided by the present invention.

Fig. 6 is a schematic view of a top surface structure of a slotting cutter provided by the present invention.

Fig. 7 is a schematic view of a structure of a rear portion of a slotting cutter.

Fig. 8 is a schematic view of a sectional structure of a cutting groove of a slotting cutter according to the present invention.

In the figure: 1. a cutter bar; 2. a screw; 3. pressing a plate; 4. a cutter body; 5. a compression surface; 6. a cutter head; 7. the bottom of the tank; 8. a groove surface; 9. a blade; 10. a tail positioning surface; 11. a bottom positioning surface; alpha, bottom positioning surface inclination angle; beta, tail positioning surface inclination angle; gamma, compression surface inclination angle; E. the included angle of the plane of the chip breaker groove; sigma, chip breaker angle; b. the chip breaker groove margin.

Detailed Description

The technical solution of the present invention will be described in further detail through the following embodiments.

The embodiment provides a slotting cutter, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7 and fig. 8, which includes a cutter bar 1, wherein a pressing plate 3 and a cutter bar fixing surface are arranged at one end of the cutter bar 1, and a cutter body 4 is installed in the cutter bar fixing surface through the pressing plate 3 and a screw 2.

One end of the cutter body 4 is respectively provided with a pressing surface 5 matched with the pressing plate 3, a tail positioning surface 10 matched with the cutter bar fixing surface and a bottom positioning surface 11. The other end of cutter body 4 is provided with tool bit 6, the border of tool bit 6 is provided with cutting edge 9.

The inboard of cutting edge 9 is provided with the chip breaker, the chip breaker includes the flute face 8 of tank bottom 7 and slope setting. One side of the groove bottom 7 is connected with the cutting edge 9, and the other side of the groove bottom 7 is connected with the bottom of the groove surface 8.

Specifically, as shown in fig. 3, the groove surface 8 is formed by joining a plurality of inclined surfaces to each other to form a saw-toothed structure.

Specifically, as shown in fig. 2, the pressing surface 5 is obliquely arranged, and an included angle between the pressing surface 5 and the cross section of the cutter body is 10 degrees to 30 degrees. Namely, the angle value of the inclination angle γ of the pressing surface in fig. 2 is 10 ° to 30 °.

Specifically, as shown in fig. 6, the tail positioning surface 10 is obliquely arranged, and an included angle between the tail positioning surface 10 and the longitudinal section of the cutter body is 10 ° to 30 °. Namely, the inclination angle β of the tail positioning surface in fig. 6 has an angle value of 10 ° to 30 °.

Specifically, as shown in fig. 4 and 5, the bottom positioning surface 11 is inclined inward, and an included angle between the bottom positioning surface 11 and the cross section of the cutter body is 10 ° to 30 °. Namely, the inclination angle α of the bottom positioning surface in fig. 5 has an angle value of 10 ° to 30 °.

The cutter bar fixing surface is an inclined surface matched with the bottom positioning surface 11, and the included angle between the cutter bar fixing surface and the cross section of the cutter body is 10-30 degrees. Namely, the angle value of the inclination angle γ of the pressing surface in fig. 7 is 10 ° to 30 °.

In this embodiment, the cutting edge 9 includes a left side edge, an end edge and a right side edge that are connected in sequence, and the end edge is connected with one side of the groove bottom 7. In the present embodiment, the included angle E of the breaker plane is 15 ° to 170 °, as shown in fig. 6 and 8; the angle sigma of the chip breaker is 20-85 degrees; the length of the chip breaker groove edge distance b is 0.05mm to 0.6 mm.

Specifically, the specific manufacturing process of the slot cutter provided by the embodiment includes the following steps:

(1) producing a corresponding die according to the shapes of the cutter body and the cutter head;

(2) adding the hard alloy powder mixed according to a certain proportion into a mould;

(3) pressing the hard alloy powder into a cutter body blank at high temperature and high pressure;

(4) cutting the tool bit blank by using laser cutting equipment;

(5) cutting a cutter groove on the cutter body blank by using a grooving machine;

(6) and welding the cutter head blank into the cutter groove on the cutter body by vacuum welding at the temperature of 750-850 ℃.

(7) Grinding the tool bit surface to be horizontal by a surface grinder, wherein the flatness requirement is 0.01 mm;

(8) machining the cutting edge of the blade by using grinding machine equipment;

(9) machining a chip breaker groove on the blade part by using laser 20PT equipment;

(10) and processing a cutter bar blank by using the quenching steel material, and further processing a cutter groove, a pressing plate and a threaded hole for correspondingly placing the slot blade on the cutter bar blank.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: the invention can be modified or equivalent substituted for some technical features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. A slotting cutter, includes the cutter arbor, its characterized in that: one end of the cutter bar is provided with a pressing plate and a cutter bar fixing surface, and a cutter body is arranged in the cutter bar fixing surface through the pressing plate and a screw;

2. A slot cutter according to claim 1, wherein: the groove surface is in a sawtooth structure formed by mutually connecting a plurality of inclined surfaces.

3. A slot cutter according to claim 2, wherein: the pressing surface is obliquely arranged, and the angle value of an included angle between the pressing surface and the cross section of the cutter body is 10-30 degrees.

4. A slot cutter according to claim 2 or 3, wherein: the tail positioning surface is obliquely arranged, and the angle value of an included angle between the tail positioning surface and the longitudinal section of the cutter body is 10-30 degrees.

5. A slot cutter according to claim 4, wherein: the bottom positioning surface is arranged in an inward inclined mode, and the angle value of an included angle between the bottom positioning surface and the cross section of the cutter body is 10-30 degrees.

6. A slot cutter according to claim 5, wherein: the cutter bar fixing surface is an inclined surface matched with the bottom positioning surface, and the included angle between the cutter bar fixing surface and the cross section of the cutter body is 10-30 degrees.

7. A slot cutter according to claim 6, wherein: the cutting edge comprises a left side edge, an end edge and a right side edge which are sequentially connected, wherein the end edge is connected with one side of the groove bottom.