Double-row corrugated milling cutter blade and cutter bar

Abstract

The application discloses a double-row corrugated milling cutter blade and a cutter bar, which comprise a cutter body, two parallel arranged first corrugated cutting edges and second corrugated cutting edges are arranged on the cutter body, the first corrugated cutting edges and the second corrugated cutting edges are formed by a plurality of parallel arranged circular arc cutting edges, and the circular arc cutting edges at the corresponding positions of the first corrugated cutting edges and the second corrugated cutting edges are arranged in a staggered mode. The double-row corrugated cutter blade is multi-blade cutting, the cutter bar can be provided with four cutter blades, each cutter blade is double-blade, and a total of eight blades are arranged on the cutter bar, and eight milling cutting edges simultaneously process during cutting, compared with a corn milling cutter (two blades) on the market. The feeding speed can be increased by at least more than four times, and the production capacity is increased. The double-row corrugated milling cutter blade of the application can recycle iron scraps generated after milling, can reduce the tool cost, and does not generate waste. The application is more environmentally friendly.

Description

Technical fields:

[0001] This invention relates to a double-row corrugated milling insert and tool holder. Background technology:

[0002] Sand casting produces casting gates (including runners and risers), which are typically removed by grinding and milling. Grinding is environmentally unfriendly; the dust collection equipment used in grinding is energy-intensive and noisy, and the shavings from the grinding process become waste, requiring costly disposal (environmental authorities also require foundries to reduce grinding processes and replace them with turning and milling to reduce pollution and waste). Milling, commonly using corn milling (AP inserts), is environmentally friendly, as the milled shavings can be recycled. However, it is less efficient, affecting production output, and consumes more cutting tools, making it more expensive than grinding. Summary of the Invention:

[0003] The present invention provides a double-row corrugated milling insert and tool holder to solve the problems existing in the prior art.

[0004] The technical solutions adopted in this invention are as follows:

[0005] A double-row corrugated milling insert includes an insert body with two parallel corrugated cutting edges and a second corrugated cutting edge. The first and second corrugated cutting edges are both formed by several parallel arc cutting edges, and the arc cutting edges at corresponding positions of the first and second corrugated cutting edges are staggered.

[0006] Furthermore, the radius of the arc-shaped cutting edge is R0.8mm, and the axial distance between two adjacent arc-shaped cutting edges is 1.75mm.

[0007] Furthermore, the widths of the first and second corrugated cutting edges are equal, both being 2.25 mm.

[0008] Furthermore, the cutting edge surfaces of the first and second corrugated cutting edges are both arranged at an angle towards the bottom surface of the blade body, and the inclination angles of the cutting edge surfaces of the first and second corrugated cutting edges are the same, both being 8°.

[0009] Furthermore, the blade body has a width of 10mm, a length of 17.3mm, and a height of 6mm.

[0010] Furthermore, mounting holes are provided in the height direction of the blade body.

[0011] The present invention also discloses a tool holder for a double-row corrugated milling insert, characterized in that: four mounting slots for mounting corrugated milling inserts are provided on the tool holder, and the insert body is fixed in the mounting slots by screws.

[0012] Furthermore, the blade body has a diameter of 25mm and a length of 120mm.

[0013] The present invention has the following beneficial effects:

[0014] The double-row corrugated inserts are multi-flute cutting inserts. The tool holder can hold four inserts, each with two flutes, for a total of eight flutes per tool holder. During cutting, all eight milling edges work simultaneously, increasing feed rate and productivity by at least four times compared to commercially available corn milling cutters (two flutes). The double-row corrugated end mill inserts of this invention produce recyclable milling chips, reducing tooling costs and generating no waste, making them more environmentally friendly. Attached image description:

[0015] Figure 1 is a top view of a double-row corrugated milling insert.

[0016] Figure 2 is a left view of a double-row corrugated milling insert.

[0017] Figure 3 shows the front view of a double-row corrugated milling insert.

[0018] Figure 4 shows the front view of the tool holder.

[0019] Figure 5 and Figure 6 This is a cross-sectional view of the tool holder. Detailed implementation method:

[0020] The invention will now be further described with reference to the accompanying drawings.

[0021] like Figures 1 to 3 This invention discloses a double-row corrugated milling insert, comprising an insert body 1. The upper surface of the insert body 1 has two parallel corrugated cutting edges 11 and 12. The widths of the first corrugated cutting edges 11 and 12 are equal, both being 2.25 mm. Both the first corrugated cutting edges 11 and 12 are formed by several parallel arc-shaped cutting edges 10, with corresponding positions of the arc-shaped cutting edges 10 in the first and second corrugated cutting edges 11 and 12 staggered. The cutting edges of both the first and second corrugated cutting edges 11 and 12 are inclined towards the bottom surface of the insert body 1 at an angle of 8°.

[0022] The parameters of the arc-shaped cutting edge 10 in the first corrugated cutting edge 11 and the second corrugated cutting edge 12 are as follows: the radius of the arc-shaped cutting edge 10 is R0.8mm, and the axial distance between two adjacent arc-shaped cutting edges 10 is 1.75mm.

[0023] The parameters of the blade body 1 are: width 10mm, length 17.3mm, and height 6mm.

[0024] like Figures 4 to 6 The tool holder structure used with the double-row corrugated milling inserts is as follows: the insert body 1 has a diameter of 25mm and a length of 120mm. Four mounting slots 2 for mounting corrugated milling inserts are provided on the tool holder, and mounting holes 13 are provided along the height direction of the insert body 1. The insert body 1 is fixed in the mounting slots 2 with screws.

[0025] This invention uses double-row corrugated inserts, with the two rows of corrugated cutting edges arranged in a staggered manner. This reduces milling resistance, increases feed rate, and improves machining efficiency.

[0026] The double-row corrugated inserts are multi-flute cutting tools. A 25mm diameter tool holder can hold four inserts, each with two flutes, for a total of eight flutes per tool holder. During cutting, all eight milling edges work simultaneously, increasing feed rate and productivity by at least four times compared to corn milling cutters (2 flutes) on the market.

[0027] The corn milling cutters on the market, with AP inserts and a diameter of D25mm, can only hold two inserts. During cutting, there are only two cutting edges, and the resistance is high (the milling contact area is large during cutting), which easily causes tool deflection, affects insert life, and the feed F value cannot be increased, thus affecting production capacity.

[0028] The use of the cutting blades of this invention can reduce waste generation and is more environmentally friendly. The waste generated from grinding (which requires costly treatment and has a significant impact on the environment) can be recycled by the double-row corrugated milling cutters of this invention. It can also reduce tool costs and generate no waste.

[0029] The use of the cutting blades in this invention improves efficiency: compared with corn milling cutters and AP cutting blades on the market, the efficiency can be increased by more than 4 times (the number of cutting blades is 4 to 1, and the corrugated blades have low resistance).

[0030] (1) The cutting edge is 4 times larger. The Ap tool holder can only hold 2 cutting blades on a diameter of D25mm. The new double-row corrugated tool holder can hold 4 cutting blades on a D25mm diameter. The double-row corrugated cutting blade has two rows of cutting edges on each blade, 4 blades x 2 edges x 8 edges, so there are a total of 8 cutting edges on one tool holder.

[0031] (2) The tool holder and the blade have strong structural rigidity (large core diameter).

[0032] (3) The 8-edge corrugated cutting has low cutting resistance, which can improve the feed rate, increase efficiency and extend tool life.

[0033] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several improvements without departing from the principle of the present invention, and these improvements should also be considered within the scope of protection of the present invention.

Claims

1. A double-pass wave fluted cutter insert, characterized by: The utility model relates to a kind of wave milling cutter blade, including blade body (1), the first corrugated edge (11) and the second corrugated edge (12) of two parallel arrangements are equipped on the blade body (1), the first corrugated edge (11) and the second corrugated edge (12) are formed by several juxtaposed arc edge (10), and the arc edge (10) of corresponding position in the first corrugated edge (11) and the second corrugated edge (12) is staggered arrangement; The radius of the arc edge (10) is R0.8mm, and the axial center spacing of two juxtaposed arc edges (10) is 1.75mm; The width of the first corrugated edge (11) and the second corrugated edge (12) is equal, and is 2.25mm; The edge surface of the first corrugated edge (11) and the second corrugated edge (12) is arranged in the direction of the bottom surface of blade body (1) with inclination, and the inclination angle of the edge surface of the first corrugated edge (11) and the second corrugated edge (12) is same, and is 8 °.

2. The double-row wave cutter insert according to claim 1, wherein: The width of the blade body (1) is 10mm, the length is 17.3mm, and the height is 6mm.

3. The double-row wave cutter insert according to claim 1, wherein: Mounting hole (13) is provided in the height direction of the blade body (1).

4. A cutter bar having the double row wave cutter insert of any one of claims 1 to 3, characterized in that: Four mounting grooves (2) for installing wave milling cutter blade are formed on the cutter bar, and the blade body (1) is fixed in the mounting groove (2) by screw.

5. The dual row wave fluted cutter bar of claim 4 wherein: The diameter of the blade body (1) is 25mm, and the length is 120mm.

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