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Special vertical staggered-tooth adjustable width cutting knife for disk milling slotting of open blisk

A technology of integral blisk and disc milling, applied in milling cutting inserts, milling cutters, manufacturing tools, etc., can solve problems such as low efficiency, and achieve the effects of simple preparation, convenient process, and improved positioning accuracy

Inactive Publication Date: 2015-11-25
HARBIN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a new type of open blisk flow channel slotting tool, which is mainly used in the process of slotting the titanium alloy open blisk flow channel, so as to improve the low efficiency in the processing process, and realize the Under the condition of not changing the tool, it can process slots of different widths, the operation of changing and adjusting the blade is convenient and simple, and the positioning is accurate, so as to improve the processing quality and efficiency, and effectively reduce the production cost

Method used

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  • Special vertical staggered-tooth adjustable width cutting knife for disk milling slotting of open blisk
  • Special vertical staggered-tooth adjustable width cutting knife for disk milling slotting of open blisk
  • Special vertical staggered-tooth adjustable width cutting knife for disk milling slotting of open blisk

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specific Embodiment approach 1

[0021] Specific implementation mode one: combine Figure 1-Figure 4 Note that the vertically-mounted adjustable width cutting tool for milling and slotting of open-type integral blisks in this embodiment adopts a vertically-mounted structure with indexable and staggered teeth to ensure the stability of the tool during processing, which is beneficial to reduce processing time. The vibration of the process mainly includes the cutter body 1 and 12 blades. The material of the cutter body 1 is 42CrMo, which increases the strength of the cutter body. The diameter of the cutter body is 200mm. The center of the cutter body 1 is processed with a central through hole, and the diameter of the central through hole is 50mm. , the center bushing 2 is designed in the center through hole, which is mainly used to connect the milling cutter to the tool holder, and can increase the strength of the tool; the center bushing 2 is designed with an axial keyway 3 for axial positioning, which improves ...

specific Embodiment approach 2

[0023] Specific implementation mode two: combination Figure 1-Figure 4 Note that each flute 4 in this embodiment is composed of two inclined surfaces and an arc surface, the included angle between the inclined surface and the radial direction in the plane of the cutter body is 30°, and the included angle between the two inclined surfaces along the axial direction is 3° °~5°, the inclination direction is the same as the direction of installing the blade, which is easy to curl, break and discharge chips, avoid machining errors caused by poor chip removal during processing, and reduce tool wear;

[0024] A sipe 10 is designed on the top side of the slope of each discharge groove 4, and two positioning grooves 8 are designed in each sipe 10, and two adjacent sipe 4 are designed as a staggered tooth structure.

specific Embodiment approach 3

[0025] Specific implementation mode three: combination Figure 1-Figure 4 Explain that each adjusting block 7 of this embodiment is provided with a threaded hole, and the adjusting block 7 is fixed in the knife groove 4 by the fastening screw 5 and the positioning groove 8, and the positioning is simple and accurate;

[0026] When the blade 6 is in the initial position, the blade 6 penetrates the fastening screw 5 and is fixed in the knife groove 4 through the positioning screw hole on the blade and the positioning groove 8 on the cutter body;

[0027] When the blade 6 is shifted by 0.5 mm, an adjustment spacer 7 is designed between the bottom end of the blade 6 and the knife groove 4, and the adjustment spacer 1 7 is fixed in the knife groove 4 by the fastening screw 5 and the positioning groove 8, and the blade 6 And the adjustment block-7 penetrates the fastening screw 5 and is fixed in the knife groove 4 through the positioning groove 8 on the cutter body. When the blade 6...

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Abstract

The invention relates to a special vertical staggered-tooth adjustable width cutting knife for disk milling slotting of an open blisk, belongs to the technical field of metal cutting processing knives, and solves the problems of low processing efficiency, easy abrasion of the knife, poor chip removal, short service life of the knife and high cost of slotting of the conventional open blisk. A center bushing is fixed at the center of a knife body, and twelve chip removal slots are uniformly formed in the periphery of the knife body. Each chip removal slot is composed of two slopes and an arc, a knife slot is formed in one slope, and the two adjacent knife slots adopt a staggered-tooth structure. Two positioning slots are formed in each knife slot, blades are fixed in the knife slots, and the blades and adjusting cushion blocks are fixed in the knife slots through fastening screws. Each blade unilaterally shifts for 0.5, 1.0 or 1.5mm by replacing each adjusting cushion block, and therefore the adjustable width cutting processing of the knife is realized. The special vertical staggered-tooth adjustable width cutting knife is mainly used for runner slotting of the open blisk.

Description

technical field [0001] The invention relates to a vertically mounted and adjustable cutting width cutting tool specially used for milling and slotting of open-type integral blisks, belonging to the technical field of metal cutting tools. Background technique [0002] The processing of open blisks generally has a long cycle and low efficiency. The material removed from the blank to the forming process reaches about 90%. The blisk blanks are generally made of difficult-to-machine materials such as titanium alloys and high-temperature alloys, which is difficult to process. At present, side milling and plunge milling are the main methods of roughing open blisk flow channels, which have low processing efficiency, severe tool wear and short tool life during processing, thus reducing production efficiency and increasing production costs. Disc milling cutters (three-sided edge milling cutters) are widely used due to their high efficiency in slotting. Commonly used disc milling cutte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C5/20B23C5/02
CPCB23C5/02B23C3/28B23C2200/0444B23C2220/36B23C5/202
Inventor 程耀楠左殿阁陈天启刘献礼冯新敏
Owner HARBIN UNIV OF SCI & TECH
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