CN104802576B - Disposable multi-edged carving blade - Google Patents

Abstract

The present invention is a disposable multi-edged engraving blade. The two ends of the engraving blade are set to be symmetrical V-shaped, respectively sandwiched by a right side surface and a left side surface. The two oblique corresponding surfaces at the end of the V-shape are respectively provided with a chip groove. The bottom surface of the chip groove intersects with the rotation axis of the blade, so that the bottom surface of the chip groove forms a right cutting edge with the right side surface and a left cutting edge with the left side surface, forming a disposable engraving blade with at least two cutting edges.

Description

Disposable multi-edged carving blade

technical field

The present invention relates to an improvement of a discarded engraving blade, which refers to a discarded multi-edged engraving blade with a multi-edged blade structure and a high material removal rate.

Background technique

Generally used engraving knives are mainly used for lettering on metal surfaces or engraving various patterns, patterns, etc., as shown in Figures 6 to 8, which are general solid carbide engraving knives 30, the engraving Knife 30 comprises two parts of cutter bar 31 and engraving blade 32, and wherein this engraving blade 32 is surrounded by a flat top surface 321, right side 322, left side 323 on the centerline, and is provided with a horizontal plane at the end. It is formed by an end cutting edge 324 of at least 5°. Please refer to FIG. 8 which shows a partial enlarged view of the engraving blade. The centerline 320 of the engraving blade 32 and the centerline 310 of the knife bar have an appropriate eccentric value e , the value of the end of the end cutting edge 324 and the centerline 310 of the knife bar is the groove width radius Y, and the groove width cut by the carving knife is 2Y. Because the cutting amount of the carving knife 30 is small, it is mainly by the engraving With the design of the eccentric value e of the blade 32, only the single right side 322 and the end cutting edge 324 have the cutting ability, that is, only a single edge cutting ability, so the removal rate of the material is low, and it is usually used for less than 0.3mm Shallow lettering, engraving, etc. in width or depth.

Please refer to Fig. 9 , it is an engraving tool 40 with a discarded structure. A knife holder 42 is arranged at the end of the cutter bar 41 of the discarded cutter. To deviate from the value e, a discarded engraving blade 50 must be locked on the knife seat 42. The discarded engraving blade 50 has a diamond-shaped appearance, and one end is provided with a right cutting edge 51 and a left cutting edge 52 to form a V shape. The V-shaped end is provided with an end cutting edge 53, the left cutting edge 52 and the right cutting edge 51 are symmetrical, the intersection point of the ends is located on the center line 500 of the blade, and the step hole 54 of the blade for locking is located in the discarding type. The central position of the engraving blade 50; therefore, when the disposable engraving blade 50 is locked on the knife seat 42, the tip of the end cutting edge 53 and the centerline 400 of the knife bar have a groove width radius Y, and only one side of the right cut The edge 51 and the end cutting edge 53 have cutting ability, so the discarded engraving blade 50 only has the ability of single-edged cutting, and the material removal rate can only be improved by rotating speed. Layer lettering, engraving patterns and other work.

Since the above two engraving tools only have the ability to cut with a single edge, if the engraving operation with a large width and deep depth (greater than 0.3mm) is engraved, the engraving speed is relatively slow, and more processing time is required. In addition, the conventional engraving knife edge The top surface of the blade is located at the center of rotation. As shown in Figure 7, the flat top surface 321 of the engraving blade 32 is located on the center line. There will be a phenomenon of vibration, so this type of tool cannot cut at high speed; and please refer to Figures 6 to 8, by virtue of the design of the eccentric value e of the engraving blade 32, only the single right side 322 and the end cutting of the end Edge 324 has cutting ability, promptly has only the ability of single edge cutting, also because only has single blade cutting ability, the removal rate of material is half of the general common cutting tool, therefore, the economic benefit of this cutting tool is low, obviously to Production and processing speed cannot be improved.

The edge of the knife will be passivated after using for a period of time. Since the edge of the carving knife is very small, the grinding must be very accurate so as not to cause excessive eccentricity. Therefore, the grinding technology is high and grinding errors are often encountered. Due to the gradual loss of talents and the aging of technicians, the eyesight cannot afford such small-sized grinding operations. Therefore, fewer and fewer people use engraving knives made of solid carbide materials, and use discarded engraving blades instead. Grinding the edge of the knife, but only single-edged discarded blades are only suitable for engraving below 0.3mm; when engraving with a larger width (above 0.3mm) is still processed with a single-edged blade, because the speed cannot be increased, moving The removal rate cannot be increased, but the wear of the blade is doubled, and the load on the blade increases, so the wear of the blade is very obvious.

Contents of the invention

Conventional engraving tools only have the ability to cut with a single edge, so the material removal rate is low. For engraving operations with a large width and deep depth, the engraving speed is relatively slow and requires more processing time. At the same time, the cutting edge However, the wear of the blade is doubled, the load on the blade increases, and the wear on the blade is very obvious.

For reaching above-mentioned purpose, solution of the present invention is:

A discarded multi-edged engraving blade, the two ends of the engraving blade are set in a symmetrical V shape, which are respectively sandwiched by a right side and a left side bread, and two obliquely corresponding sides of the V-shaped end are respectively provided with a chip removal groove , the bottom surface of the flute is a cutting surface, and intersects with the rotation axis of the blade, forming cutting edges on both sides of the rotation axis.

Further, the engraving blade is installed on the knife seat in a negative angle state, and an appropriate thickness is slightly increased on the engraving blade, so that the thickness of the blade on both sides of the blade rotation axis can be averaged, and the number of blades can be increased at the end of the blade.

Further, the central end point of the rotating shaft of the engraving blade is provided with an appropriate angle and is tangent to the cutting surface. The end of the engraving blade is provided with an end surface of appropriate width, and the end surface is tangent to the cutting surface to form a right cutting edge and a left cutting edge.

The present invention has a multi-edge cutting edge (at least two cutting edges) at the end of the disposable engraving blade, which is different from the single cutting edge of the conventional one, which can double the material removal rate and change the design of the conventional disposable engraving knife form, the engraving operation time can be reduced and the production capacity can be improved.

Description of drawings

Fig. 1 is the three-dimensional view of discarded multi-edged carving blade of the present invention;

Fig. 2 is an auxiliary view of the discarded multi-edged carving blade of the present invention;

Fig. 3 is the front view of the disposable multi-edged carving blade of the present invention;

Figure 4 is a top view of the combination of the discarded multi-edged carving blade and the cutting tool of the present invention;

Figure 5 is a side view of the combination of the discarded multi-edged carving blade and the cutting tool of the present invention;

Fig. 6 is the plane view of the engraving cutter of known whole solid carbide material;

Fig. 7 is the side view of the engraving tool of the known whole solid carbide material;

Fig. 8 is a partially enlarged schematic diagram of a known engraving tool of solid carbide material;

Fig. 9 is a schematic plan view of a conventional disposable engraving tool.

Symbol Description:

10 Engraving blade 100 Rotation shaft 11 Center seat hole 12 Right side 13 Left side 14 Chip flute 150 Cutting surface 151 Right trimming edge 152 Left trimming edge 20 Tool 21 Tool holder 30 Engraving tool 31 Tool bar 310 Tool bar center line 32 Engraving blade 320 centerline 321 flat top surface 322 right side 323 left side 324 end cutting edge R cutting radius e eccentric value Y groove width radius θ angle m thickness.

detailed description

In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.

Please refer to Figs. 1 to 4, the discarded multi-edged carving blade 10 of the present invention is provided with a center seat hole 11, which is located at the center of the carving blade 10, and the two ends of the carving blade 10 are provided with It is a symmetrical V shape, which is respectively sandwiched by a right side 12 and a left side 13. The two obliquely corresponding sides at the end of the V shape are respectively provided with a chip removal groove 14, and the bottom surface of the chip removal groove 14 is a cutting surface. 150, and intersects with the rotation axis 100 of the blade 10, and forms a cutting edge on both sides of the rotation axis. Disposable carving blade with two cutting edges.

Please refer to shown in Figure 5, the side view of the carving blade 10 of the present invention installed on the cutter 20, the carving blade 10 can be installed on the knife seat 21 in a negative angle state, the carving blade 10 is in a forward tilted state, and at the same time Only need to slightly increase an appropriate thickness m in this engraving blade 10, just can make the blade thickness on both sides of blade rotating shaft 100 be able to average, promptly can increase the number of blades at the end of blade, form the engraving blade of multi-edged edge.

Please refer to Fig. 5, the central end point of the rotating shaft 100 of the carving blade 10 of the present invention is not located on the top surface of the carving blade 10, so an appropriate angle θ is provided at the central end point of the rotating shaft 100, which is set to 60 with the embodiment of the present invention °, and tangent to the cutting surface 150, the end of the engraving blade 10 is provided with an end face of appropriate width, which is tangent to the cutting surface 150 to form a right cutting edge 151 and a left cutting edge 152, and the right cutting edge 151 Width is the radius R of engraving cutting, according to which the right cutting edge 151 and the left cutting edge 152 can be used to cut material to form the engraving blade 10 with multiple edges.

From the foregoing description, the present invention obtains at least two trimming edges at the end of the blade 10, one is the right trimming edge 151, and the other is the left trimming edge 152. When the tool feeds, the two trimming edges can be cut at the same time, so that the material removal rate It can be multiplied, and the processing speed is also multiplied with the increase of the number of blades, thereby reducing the engraving operation time and having the effect of reducing production costs. In addition, the engraving blade 10 can be locked on a general non-eccentrically arranged knife rod for direct use , that is, it can be shared with the tool holder of the general chamfering tool or the non-eccentric design of the disposable engraving tool, which has the effect of saving costs.

By means of the foregoing description, the present invention has at least two cutting edges at the end of the discarded engraving blade, which is different from the single cutting edge provided by the conventional one, and thus can double the removal rate of the material and change the conventional discarding. The shape of the traditional engraving tool design can reduce the engraving work time and improve the production capacity.

The above-mentioned embodiments and drawings do not limit the form and style of the product of the present invention, and any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of the present invention.

Claims (2)

1. a kind of disposable type multiple-cutting-edge carving blade, it is characterised in that：The two ends of the carving blade are set to symmetrical V-shape, the V-arrangement The oblique corresponding sides in shape end two are respectively equipped with a chip area, and the bottom surface of the chip area is a cutting face, and with the rotary shaft of blade It is intersecting, form edge in rotary shaft both sides, rotating shaft center's distal point of carving blade is provided with an appropriate angle, and with cutting Face is tangent, and the end of the carving blade sets the end face of a proper width, the end face and cutting face are tangent and form right cut side and a left side Trimming.

2. disposable type multiple-cutting-edge carving blade as claimed in claim 1, it is characterised in that：Carving blade sets negative angle state installing In on tool rest, increase by an appropriate thickness in the carving blade, the blade thickness of blade rotary shaft both sides can be made average, blade End is increased blade quantity.