CN214293582U

CN214293582U - Bottom-cleaning milling cutter

Info

Publication number: CN214293582U
Application number: CN202023348637.XU
Authority: CN
Inventors: 陈方贵; 陈芳清
Original assignee: Jiangsu Songpu Intelligent Equipment Technology Co ltd
Current assignee: Jiangsu Songpu Intelligent Equipment Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-09-28
Anticipated expiration: 2030-12-31

Abstract

The utility model relates to a clear end milling cutter, including handle of a knife and tool bit, handle of a knife and tool bit welded fastening, be provided with first cutting edge, second cutting edge and third cutting edge on the working face of tool bit, the tool bit includes first installation department, second installation department and third installation department, the one end of first installation department links to each other with the one end of second installation department is perpendicular, the other end of second installation department links to each other with the one end of third installation department is perpendicular, first cutting edge is installed on the first installation department, the second cutting edge is installed on the second installation department, the third cutting edge is installed on the third installation department, second cutting edge side has the chip groove of seting up on second installation department surface. Change traditional double-edge into three cutting edge structures, these three cutting edges are arranged respectively on three installation department for whole tool bit shows for Z shape structure on the projection, and the arrangement of this kind of structure is favorable to the feeding of milling and is improved the toughness of tool bit, also can improve cutting ability and efficiency simultaneously, improves milling cutter's life.

Description

Bottom-cleaning milling cutter

Technical Field

The utility model relates to a milling cutter technical field, especially a clear end milling cutter can be applied to milling flutes and deburring in the wood working.

Background

The common wood processing tool in the market can be used as a counter bore and also can be used as a cutter for milling a groove and trimming, namely a bottom-clearing milling cutter. The key of the bottom clearing milling cutter is the cutter head part, the prior bottom clearing cutter is that two hard alloy blades and a base body are processed together through high-frequency brazing, two chutes are usually formed in the cutter head part of the base body, the wedge-shaped hard alloy blades are arranged in the chutes, and because the hard alloy blades at the cutter head part are required to be over-centered radially, the projections of the two chutes in the vertical direction are connected to form a line, and a chip removal groove is also required to be formed, so that the thickness of the base body at the cutter head part is very thin, and the heat capacity is very small. Because the thickness of the base body at the head part of the knife is too thin, the base body is greatly subjected to thermal deformation during welding, the hard alloy blade is easy to break, and even if the hard alloy blade which is not broken is welded, the hard alloy blade can be partially broken due to the accumulation of external force caused by the thermal stress, the grinding force and the like during subsequent sharpening. After the product is finished, the cutter, especially the head part, can be broken wholly or seriously deformed or the hard alloy blade can be broken due to the residual stress of the hard alloy blade, the strength difference of the head part of the base body and the like when the product is used. Based on this, the current double-blade bottom-cleaning milling cutter has poor cutting capability, low strength and short service life.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the technical problem, the bottom clearing milling cutter is provided, and is provided with three cutting edges, so that the cutting capacity is greatly improved.

The utility model discloses a clear end milling cutter, including handle of a knife and tool bit, handle of a knife and tool bit welded fastening, be provided with first cutting edge, second cutting edge and third cutting edge on the working face of tool bit, the tool bit includes first installation department, second installation department and third installation department, the one end of first installation department links to each other with the one end of second installation department is perpendicular, the other end of second installation department links to each other with the one end of third installation department is perpendicular, first cutting edge is installed on the first installation department, the second cutting edge is installed on the second installation department, the third cutting edge is installed on the third installation department, second cutting edge side has the chip groove of seting up on second installation department surface. Change traditional double-edge into three cutting edge structures, these three cutting edges are arranged respectively on three installation department for whole tool bit shows for Z shape structure on the projection, and the arrangement of this kind of structure is favorable to the feeding of milling and is improved the toughness of tool bit, also can improve cutting ability and efficiency simultaneously, improves milling cutter's life.

Furthermore, in order to improve the chip removal capacity of the milling cutter, one side of the chip removal groove is arranged in a penetrating mode.

Further, the outer wall surfaces of the first mounting part and the third mounting part are inclined planes, and the rotating directions of the first mounting part and the third mounting part are the same. The milling cutter has the same rotating direction and the outer wall is an inclined plane, so that the air resistance is smaller in the rotating process of the milling cutter, and the milling capacity is improved.

Further, the roots of the first blade, the second blade and the third blade are arranged on the same line. The three points of the root part are connected into a line, so that the stress is uniform in the milling process, stronger milling capability is formed, and the service life of the milling cutter can be prolonged.

The beneficial effects of the utility model are that, this end milling cutter that clears away adopts three cutting edge structures, and the reinforcing mills the ability, the rational arrangement structure of three cutting edges simultaneously for it is even to mill the in-process atress, has improved milling cutter's milling efficiency.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic three-dimensional structure diagram of the bottom-cleaning milling cutter of the present invention;

fig. 2 is a top view of the bottom milling cutter of the present invention.

In the figure: 1. the cutting tool comprises a tool handle, 2, a tool bit, 3, a first cutting edge, 4, a second cutting edge, 5, a third cutting edge, 6, a first mounting part, 7, a second mounting part, 8, a third mounting part, 9 and a chip groove.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

Referring to fig. 1 and 2, the bottom clearing milling cutter comprises a cutter handle 1 and a cutter head 2, wherein the cutter handle 1 and the cutter head 2 are welded and fixed, a first cutting edge 3, a second cutting edge 4 and a third cutting edge 5 are arranged on the working surface of the cutter head 2, the cutting edges adopt diamond composite sheets, the cutter handle adopts No. 45 steel, the first cutting edge 3, the second cutting edge 4 and the third cutting edge 5 are arranged on the same connecting line, the cutter head 2 comprises a first mounting part 6, a second mounting part 7 and a third mounting part 8, one end of the first mounting part 6 is vertically connected with one end of the second mounting part 7, the other end of the second mounting part 7 is vertically connected with one end of the third mounting part 8, the first cutting edge 3 is arranged on the first mounting part 6, the second cutting edge 4 is arranged on the second mounting part 7, the third cutting edge 5 is arranged on the third mounting part 8, a chip removing groove 9 arranged on the surface of the second mounting part 7 is arranged on the cutting edge side of the second cutting edge 4, one side of the chip groove 9 is arranged in a penetrating way. The outer wall surfaces of the first mounting portion 6 and the third mounting portion 8 are inclined surfaces, and the rotation directions thereof are the same.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. The utility model provides a clear end milling cutter, includes handle of a knife (1) and tool bit (2), handle of a knife (1) and tool bit (2) welded fastening, its characterized in that: be provided with first cutting edge (3), second cutting edge (4) and third cutting edge (5) on the working face of tool bit (2), tool bit (2) are including first installation department (6), second installation department (7) and third installation department (8), the one end of first installation department (6) links to each other with the one end of second installation department (7) is perpendicular, the other end of second installation department (7) links to each other with the one end of third installation department (8) is perpendicular, install first cutting edge (3) on first installation department (6), install second cutting edge (4) on second installation department (7), third cutting edge (5) are installed on third installation department (8), second cutting edge (4) cutting edge side has chip groove (9) of seting up on second installation department (7) surface.

2. The bottom milling cutter according to claim 1, wherein: one side of the chip groove (9) is arranged in a penetrating mode.

3. The bottom milling cutter according to claim 1, wherein: the outer wall surfaces of the first installation part (6) and the third installation part (8) are inclined planes, and the rotating directions of the first installation part and the third installation part are the same.

4. The bottom milling cutter according to claim 1, wherein: the roots of the first cutting edge (3), the second cutting edge (4) and the third cutting edge (5) are arranged on the same connecting line.