Hard alloy indexable milling blade

Abstract

The utility model discloses a hard alloy indexable milling blade, which relates to the technical field of machining, aims to improve the compatibility of workpiece structures and effectively improve the cutting efficiency, and adopts the technical scheme that the hard alloy indexable milling blade comprises an indexing part and a cutting part, the transposition part comprises a rotating base, a threaded hole and a tool apron, the cutting part comprises a blade assembly, a fastening bolt and a chip removal slope, the tool apron comprises a placing groove and a fixing groove, the blade assembly comprises a cutting blade and a cutting edge, the indexable milling blade adopts cutting blades of different models, and the indexable milling blade is convenient to use. The model number of the blade is replaced through rotation of the rotary base, transposition is carried out according to the structural shape of a workpiece to replace the model number of the blade, the time for halting to replace the blade is shortened, the production efficiency is improved, grinding between the workpiece and the tool apron is avoided by lengthening the cutting edge when the blade is abraded, and the service life of the tool apron is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field especially is a kind of hard alloy indexable milling insert. BACKGROUND

[0002] ‌Indexable insert is a kind of tool mechanically clamped on tool body, and its cutting edge is used bluntly without regrinding and is used by indexing. Specifically, the indexable insert is a polygonal insert that is pre-processed and has a plurality of cutting edges, which is fixed on the tool body by mechanical clamping. When a cutting edge is worn, the clamping device is loosened, the insert is rotated or replaced, the new cutting edge is put into work, and then clamping is performed to restore the use of the indexable insert.

[0003] However, the existing indexable insert can only switch the same type of insert, and cannot realize the conversion of different types of inserts. The existing indexable insert has a short cutting edge, which is easy to cause collision between the workpiece and the tool holder after the cutting edge is worn, affecting the service life of the tool holder. SUMMARY

[0004] The utility model aims at providing a kind of hard alloy indexable milling insert, and different types of inserts are replaced by indexing, the compatibility of workpiece structure is improved, and the cutting efficiency is effectively improved.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0006] A kind of hard alloy indexable milling insert, including index part and cutting part, wherein the cutting part is arranged at the top of index part, the cutting part is rotated through index part, the index part includes rotating base, screw hole and tool holder, the rotating base is provided with screw hole inside, the rotating base is connected by screw hole thread on lathe, the rotating base is rotated by the rotating tool bar of lathe, the tool holder is provided with five, and is arranged in circumferential array at the top of index part, the cutting part includes insert assembly, fastening bolt and chip removal slope, the insert assembly is embedded in the tool holder, the fastening bolt is arranged in the tool holder and the insert assembly, the fastening bolt connects the tool holder and the insert assembly, and the chip removal slope is arranged at the bottom of the tool holder.

[0007] Further, the tool holder includes a placement groove and a fixing groove, the placement groove is in the shape of a triangular prism cut groove on a cylinder, the fixing groove is arranged in the left side of the placement groove, the insert assembly is fixed in the fixing groove by the fastening bolt, and the insert assembly is taken out and placed through the placement groove.

[0008] Further, the insert assembly includes a cutting insert and a cutting edge, the cutting insert is provided with five, and is bolted in the fixing groove, the five cutting inserts are different in type, the cutting edge is arranged at the outer end of the cutting insert, and the cutting edge extends out of the fixing groove.

[0009] Further, the cutting insert is rotated by the rotating part, the chip removal slope is arranged below the cutting insert, and the cutting chip is guided out through the chip removal slope.

[0010] To sum up, the beneficial technical effects of the utility model are:

[0011] 1. Different types of cutting inserts are adopted, the type of the cutting insert is replaced through the rotation of the rotating base, the type of the cutting insert is replaced according to the structure and shape of the workpiece, the time of stopping and replacing the cutting insert is reduced, and the production efficiency is improved.

[0012] 2. The lengthened cutting edge is applied, the cutting edge is lengthened, the workpiece is prevented from being abraded with the tool holder when the cutting insert is abraded, the service life of the tool holder is improved, and the accumulation of the cutting chip in the tool groove is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole structure schematic view of the utility model;

[0014] Figure 2 It is a structure schematic view of the index part of the utility model;

[0015] Figure 3 It is a structure schematic view of the cutting part of the utility model.

[0016] 1, index part; 2, cutting part; 11, rotating base; 12, threaded hole; 13, tool holder; 21, cutting insert assembly; 22, fastening bolt; 23, chip removal slope; 131, placing groove; 132, fixing groove; 211, cutting insert; 212, cutting edge. DETAILED DESCRIPTION

[0017] The utility model will be further explained in detail in combination with the drawings.

[0018] The utility model discloses a hard alloy indexable milling cutting insert, including index part 1 and cutting part 2, cutting part 2 sets up at the top of index part 1, cutting part 2 rotates through index part 1, and index part 1 includes rotating base 11, threaded hole 12 and tool holder 13, and threaded hole 12 is arranged in the inside of rotating base 11, and rotating base 11 is connected in screw thread on lathe through threaded hole 12, and rotating base 11 is rotated and driven by the rotating tool bar of lathe, and tool holder 13 is arranged with five, and is all circumferential array in the top of index part 1, and tool holder 13 is used for fixing cutting insert. Tool holder 13 includes placing groove 131 and fixing groove 132, and placing groove 131 is in the shape of three prism cutting groove on cylinder, and fixing groove 132 is arranged in the left side face of placing groove 131, and cutting insert assembly 21 is fixed in the inside of fixing groove 132 through fastening bolt 22, and cutting insert assembly 21 is taken and placed through placing groove 131, and specifically see Figure 1 、 Figure 2 .

[0019] The cutting part 2 comprises a blade assembly 21, a fastening bolt 22 and a chip removal slope 23, the blade assembly 21 is embedded in the inside of the tool holder 13, the fastening bolt 22 is arranged in the inside of the tool holder 13 and the blade assembly 21, the fastening bolt 22 connects the tool holder 13 and the blade assembly 21, the chip removal slope 23 is arranged at the bottom of the tool holder 13, and the cutting chips generated by cutting are discharged outward through the chip removal slope 23. The blade assembly 21 comprises cutting blades 211 and cutting edges 212, the cutting blades 211 are arranged in five, are bolted in the inside of the fixed groove 132, the cutting blades 211 are replaced by rotation, the five cutting blades 211 are different in type, the type of the blade is replaced by the rotation of the rotary base 11, the type of the blade is replaced by indexing according to the structure and shape of the workpiece, the time of stopping and replacing the blade is reduced, the production efficiency is improved, the cutting edges 212 are arranged at the outer ends of the cutting blades 211, the cutting edges 212 are arranged outside the fixed groove 132, the cutting edges 212 are partially lengthened, the workpiece is prevented from being abraded with the tool holder 13 when the blade is abraded, the service life of the tool holder 13 is improved, the accumulation of the cutting chips in the tool groove is reduced, the chip removal slope 23 is arranged below the cutting blades 211, and the cutting chips are discharged through the chip removal slope 23, and specific reference can be made to Figure 3 .

[0020] Embodiments

[0021] Operation flow

[0022] 1. Different types of cutting blades 211 are installed in the fixed groove 132 according to the type of the tool holder 13, and then the corresponding cutting blade 211 is selected according to the cutting requirement of the workpiece to perform cutting work;

[0023] 2. When the cutting blade needs to be replaced, the rotary base 11 is rotated by the lathe to index the blade, and then the cutting is continued;

[0024] 3. The blade is taken out from the fixed groove 132 by hand into the placing groove 131 to replace the blade;

[0025] 4. The cutting chips are discharged through the chip removal slope 23, and the cutting chips are cleaned in time. The embodiments of the specific embodiment are the preferred embodiments of the utility model, which do not limit the protection scope of the utility model, so that: any equivalent changes made according to the structure, shape and principle of the utility model should be covered in the protection scope of the utility model.

Claims

1. A hard metal indexable milling insert comprising an index portion (1) and a cutting portion (2), characterized in that: The cutting part (2) is arranged at the top end of the indexing part (1), the cutting part (2) is rotated through the indexing part (1), the indexing part (1) comprises a rotating base (11), a threaded hole (12) and a tool holder (13), the rotating base (11) is internally provided with a threaded hole (12), the rotating base (11) is threadedly connected to the lathe through the threaded hole (12), the rotating base (11) is rotated by the rotating tool bar of the lathe, the tool holder (13) is provided with five, which are arranged in a circular array at the top end of the indexing part (1), the cutting part (2) comprises a blade assembly (21), a fastening bolt (22) and a chip removal slope (23), the blade assembly (21) is embedded in the tool holder (13), the fastening bolt (22) is arranged in the tool holder (13) and the blade assembly (21), the fastening bolt (22) connects the tool holder (13) and the blade assembly (21), and the chip removal slope is arranged at the bottom of the tool holder (13).

2. A hard metal indexable milling insert according to claim 1, characterized in that: The tool holder (13) comprises a placing groove (131) and a fixing groove (132), the placing groove (131) is in the shape of a triangular prism cutting groove on a cylinder, the fixing groove (132) is arranged in the left side of the placing groove (131), the blade assembly (21) is fixed in the fixing groove (132) through the fastening bolt (22), and the blade assembly (21) is taken out through the placing groove (131).

3. A hard metal indexable milling insert according to claim 2, characterized in that: The blade assembly (21) comprises a cutting blade (211) and a cutting edge (212), the cutting blade (211) is provided with five, which are bolted in the fixing groove (132), the five cutting blades (211) are different in model, the cutting edge (212) is arranged at the outer end of the cutting blade (211), and the cutting edge (212) extends out of the fixing groove (132).

4. A hard metal indexable milling insert according to claim 3, characterized in that: The cutting blade (211) is replaced by rotating, the chip removal slope (23) is arranged below the cutting blade (211), and the cutting chip is guided out through the chip removal slope (23).

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