Plane repairing milling cutter group

Abstract

The utility model discloses a plane repairing milling cutter group, which relates to the field of milling cutters, and comprises a cutter bar disc, a plurality of chip guide grooves uniformly arranged around the cutter bar disc, a plurality of first blades and a plurality of second blades, and the first blades and the second blades are sequentially and alternately arranged on the surfaces of the chip guide grooves in the rotating direction. The axial position of the cutting tip of the first blade is lower than the axial position of the cutting tip of the second blade, and the radial position of the cutting tip of the first blade is larger than the axial position of the cutting tip of the second blade. When the cutter moves, the height of a material is reduced through milling of the first blade, then the material is milled to the set depth through the second blade, the two-time milling mode avoids damage to the blades due to the too large height difference of the surface of a workpiece, and rapid plane repairing work is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of milling cutter, especially to a plane repair milling cutter set. BACKGROUND

[0002] PCD milling cutter as common metal processing cutter, it has the cutter bar of connecting lathe main shaft and the PCD blade that surrounds the cutter bar evenly, through driving cutter bar rotation, all blade tip along the same circular path to metal surface milling, for the workpiece processing groove class structure or to the metal surface plane repair.

[0003] Traditional PCD milling cutter all blade milling tip is inclined to axial, the peeling ability of lateral material is limited in the cutter translation process, can not realize the surface of the workpiece of larger size difference one step milling machining, and the workpiece surface that needs plane repair often has larger size difference, when using traditional PD milling cutter for plane repair, to avoid the damage of blade caused by the larger size difference of metal surface, need to deepen milling depth multiple times, and the processing efficiency is low. SUMMARY

[0004] The utility model aims at providing a kind of plane repair milling cutter set, for solving the milling tip of all blade of traditional PCD milling cutter is inclined to axial, can not quickly implement the fast milling repair work to the workpiece of larger size difference of surface.

[0005] To solve the problems of prior art, the technical scheme of the utility model is as follows:

[0006] A kind of plane repair milling cutter set, including cutter bar disc, multiple chip guides are evenly arranged around the cutter bar disc, further include several first blade and second blade, first blade and second blade are alternately arranged in the surface of the chip guide towards rotation direction, the axial position of the cutting tip of first blade is lower than the axial position of the cutting tip of second blade, the radial position of the cutting tip of first blade is greater than the axial position of the cutting tip of second blade.

[0007] Preferably, the axial position difference of the cutting tip of first blade and the axial position of the cutting tip of second blade is 0.5-1mm.

[0008] Preferably, the radial position difference of the cutting tip of first blade and the radial position of the cutting tip of second blade is 0.5-1mm.

[0009] Preferably, the surface of the chip guide towards rotation direction has tool groove, and the first blade and the second blade are all adapted to be fixed in the tool groove.

[0010] Preferably, the bottom of the chip guide extends to the edge surface of the cutter bar disc with downward inclination.

[0011] Preferably, the surface of the chip guide groove facing away from the rotation direction is connected to the bottom surface of the chip guide groove through an arc corner.

[0012] Preferably, the surface of the chip guide groove facing away from the rotation direction has liquid holes, which point towards the cutting tips of the first and second blades.

[0013] Compared with related technologies, this utility model has the following beneficial effects:

[0014] This invention uses alternating and evenly distributed first and second blades to mill the surface of a metal part. When the tool moves, the first blade mills to reduce the height of the material, and then the second blade mills the material to a set depth. This two-step milling method avoids damage to the blades caused by excessive height difference on the workpiece surface, thus achieving rapid flat surface repair. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a schematic diagram of the first and second blades of this utility model.

[0017] Reference numerals: 1. Tool holder; 2. First blade; 3. Second blade; 4. Chip guide groove; 41. Arc corner; 5. Tool groove; 6. Liquid hole. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0019] like Figure 1 As shown, the planar repair milling cutter set consists of a tool holder 1, a first insert 2, and a second insert 3. The tool holder 1 has an axial connection port for connecting to the machine tool spindle, and multiple chip guide grooves 4 are evenly opened around the outer circle contour of the end face of the tool holder 1.

[0020] like Figure 1 , Figure 2 As shown, the first blade 2 and the second blade 3 are both rhomboid structures. One acute-angled rhomboid tip of the first blade 2 and the second blade 3 is the cutting tip. The surface of the chip guide groove 4 facing the direction of rotation has a cutting groove 5. The first blade 2 and the second blade 3 are alternately arranged in each chip guide groove 4, and the first blade 2 and the second blade 3 are adapted and fixed in the cutting groove 5 with screws.

[0021] like Figure 2As shown, the cutting tip of the second blade 3 protrudes higher than the axial position of the cutting tip of the first blade 2 in the axial direction, and the axial position difference is 0.5-1mm, and the radial position of the cutting tip of the first blade 2 protrudes greater than the axial position of the cutting tip of the second blade 3, and the radial position difference is 0.5-1mm;

[0022] When the metal workpiece is subjected to plane repair milling, the machine tool drives the cutter bar disc 1 to rotate, and the uniform first blade 2 and the second blade 3 mill the protruding part of the metal piece surface, and the cutting end of the second blade 3 is used to mill the metal material in the depth direction, and when the cutter whole plane moves, the cutting tip of the first blade 2 is used to mill the metal material at the edge position, and the height difference of the material is reduced, and the second blade 3 is convenient for the second blade 3 to mill the part milled by the first blade 2 for secondary depth milling, and the rapid plane repair work is realized.

[0023] As shown in the figure, Figure 1 As shown, the bottom of the chip guide groove 4 extends downward to the edge surface of the cutter bar disc 1, and the surface of the chip guide groove 4 opposite to the rotation direction is connected with the bottom surface of the chip guide groove 4 through the arc corner 41, so that the chips milled by the first blade 2 and the second blade 3 are smoothly discharged, and the surface of the chip guide groove 4 opposite to the rotation direction is provided with a liquid hole 6, the liquid hole 6 points to the cutting tip of the first blade 2 and the second blade 3, and the liquid hole 6 is used to spray the cutting fluid to the cutting tip of the first blade 2 and the second blade 3, so as to reduce the temperature of the cutter and prolong the service life.

[0024] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A flat repair milling cutter set, comprising a cutter bar disc (1), a plurality of chip guide grooves (4) are evenly arranged around the cutter bar disc (1), characterized in that, Further comprising a plurality of first blades (2) and second blades (3), the first blades (2) and the second blades (3) are arranged alternately on the surface of the chip flute (4) facing the rotation direction, the axial position of the cutting tip of the first blade (2) is lower than that of the second blade (3), and the radial position of the cutting tip of the first blade (2) is greater than that of the second blade (3).

2. The set of flat restoration milling cutters according to claim 1, characterized in that The axial position difference between the cutting tip of the first blade (2) and the cutting tip of the second blade (3) is 0.5-1mm.

3. The set of flat build-up milling cutters according to claim 1, characterized in that The radial position difference between the cutting tip of the first blade (2) and the cutting tip of the second blade (3) is 0.5-1mm.

4. The set of flat build-up milling cutters according to claim 1, characterized in that The surface of the chip flute (4) facing the rotation direction has a blade groove (5), and the first blade (2) and the second blade (3) are fixed in the blade groove (5).

5. The set of flat build-up milling cutters according to claim 1, characterized in that The bottom of the chip flute (4) extends downwardly to the edge surface of the blade bar disc (1).

6. The set of flat build-up milling cutters according to claim 5, characterized in that The surface of the chip flute (4) facing away from the rotation direction is connected with the bottom surface of the chip flute (4) through an arc corner (41).

7. The set of planar repair milling cutters according to claim 1, characterized in that The surface of the chip flute (4) facing away from the rotation direction is provided with a liquid hole (6), and the liquid hole (6) points to the cutting tip of the first blade (2) and the second blade (3).

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