A special indexable crown ball end milling cutter for hardened steel mold

A hardened steel and mold technology, applied in the field of indexable crown ball end milling cutters for hardened steel molds, can solve the problem of low cutting efficiency of ball end milling cutters, large surface roughness of workpieces, short cutting edges of annular milling cutters, etc. problem, to achieve the effect of good high-speed milling stability, good workpiece surface quality and high processing efficiency

Inactive Publication Date: 2017-09-01
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a special indexable crown ball end milling cutter for hardened steel molds, to solve the problem of low cutting efficiency of the ball end milling cutter and large surface roughness of the workpiece when processing flat surface workpieces; The cutting edge is short, the tool wear and damage caused by unstable load during the cutting process is serious, the chips are difficult to remove, and the problem that the tool is not easy to replace after wear and tear

Method used

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  • A special indexable crown ball end milling cutter for hardened steel mold
  • A special indexable crown ball end milling cutter for hardened steel mold
  • A special indexable crown ball end milling cutter for hardened steel mold

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specific Embodiment approach 1

[0024] Specific implementation mode one: as Figure 1 to Figure 7 As shown, this embodiment discloses an indexable crown ball end milling cutter for hardened steel molds, including a handle 1, a cutter body 2 and two milling inserts, and the cutter body 2 and the handle 1 are the same The shaft is integrally made, and the two milling blades are respectively a milling blade one 3 and a milling blade two 4, and the appearance profile of the milling blade one 3 is rhombus, and the milling blade two 4 The appearance profile of the cutter body 2 is trapezoidal, and the front end of the cutter body 2 is processed with a blade installation groove 1 and a blade installation groove 2, the milling blade 3 is installed in the blade installation groove 1, and the milling blade 2 4 is installed in the blade installation groove In the second, the milling insert 3 is fixedly connected with the cutter body 2 through the countersunk screw 1, and the milling insert 2 4 is fixedly connected with...

specific Embodiment approach 2

[0027] Specific implementation mode two: as figure 1 and figure 2 As shown, a special indexable crown ball end milling cutter for hardened steel molds, the radius of the large arc cutting edge is 1.2 to 2 times the radius of the cutter body 2 . The undisclosed technical features in this embodiment are the same as those in the first embodiment.

[0028] The beneficial effects of this embodiment are: the effective cutting edge is longer, it is easy to process the uneven area of ​​the workpiece allowance, the safety is high, the contact with the workpiece is surface contact, the vibration in the cutting process is reduced, and it is more conducive to realizing high-speed and stable cutting , improve the tool life, the small cutting angle will produce a relatively small cutting thickness, the cutting edge cuts into the workpiece more smoothly, and reduces the damage caused to the tool due to the influence of unstable cutting load when the tool cuts in.

specific Embodiment approach 3

[0029] Specific implementation mode three: as figure 1 As shown, a special indexable crown ball end milling cutter for hardened steel molds, the outer surface of the handle 1 is processed with grooves 5 . Easy to clamp. The undisclosed technical features in this embodiment are the same as those in the first embodiment.

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Abstract

The invention provides an indexable crown ball-end milling cutter special for a quenched steel die, and belongs to the technical field of cutting tools. The invention aims at solving the problems that at present, when a flat surface workpiece is machined, the cutting efficiency of a ball-end milling cutter is low, roughness of the workpiece surface is large, a cutting edge of an annular milling cutter is short, cutter abrasion and dilapidation caused by an unstable load in the cutting process are serious, cuttings are difficult to remove, and the cutter is difficult to replace after abrasion and dilapidation. The appearance contour of a first milling blade is shaped like a rhombus, the appearance contour of a second milling blade is shaped like a trapezoid, a first blade installation groove and a second blade installation groove are machined in the front end face of a cutter body, the first milling blade is installed in the first blade installation groove, the second milling blade is installed in the second blade installation groove, the first milling blade is fixedly connected with the cutter body through a first sunk screw, the second milling blade is fixedly connected with the cutter body through a second sunk screw, a main cutting edge of the first milling blade and a main cutting edge of the second milling blade are combined to form a large circular arc cutting edge, and the radius of the large circular arc cutting edge is larger than that of the cutter body. The indexable crown ball-end milling cutter special for the quenched steel die is used for milling machining of the quenched steel die.

Description

technical field [0001] The invention relates to the technical field of cutting tools, in particular to a special indexable crown ball end milling cutter for hardened steel moulds. Background technique [0002] The hardened steel material has the advantages of high hardness, low elongation, low plasticity and easy to form a high-clean processing surface, and is widely used in the car panel mold industry. However, due to the high hardness and complex surface characteristics of large hardened steel molds, the cutting load is large and variable during processing, which easily leads to tool wear and damage, thereby reducing the quality of the mold processing surface. challenge. At present, the commonly used tools in the processing of large-scale cover parts are ball end milling cutters and ring milling cutters. [0003] 1) The ball end milling cutter is one of the important tools used in semi-finishing and finishing. Ball end milling cutter is used in the cutting process of la...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23C5/10
CPCB23C5/1027
Inventor 陈涛应宇翔刘献礼袁帅王道源
Owner HARBIN UNIV OF SCI & TECH
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