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Machining head replacement type rotary tool, holder, and machining head

A technology of rotary cutter and machining head, applied in the field of rotary cutter with replacement of machining head, can solve the problems of difficulty in obtaining sufficient installation strength, inability to disassemble, and flank welding, etc., and achieves easy screwing and loosening, easy disassembly, and welding inhibition. Effect

Inactive Publication Date: 2012-05-16
OSG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, when the tooth flanks on both sides are substantially vertical square threads, the possibility of welding the tooth flanks is low regardless of thermal expansion, but there is a problem that it is difficult to obtain sufficient mounting strength.
[0007] On the other hand, Patent Document 2 describes a technique in which, when the machining head is tapered to the tool holder, an auxiliary pin is screwed and detached from the opposite side of the machining head to push out the machining head. In the combined processing head exchangeable rotary tool, it is considered to use such a detachment assist pin, but even in this case, it may not be detachable

Method used

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  • Machining head replacement type rotary tool, holder, and machining head
  • Machining head replacement type rotary tool, holder, and machining head
  • Machining head replacement type rotary tool, holder, and machining head

Examples

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Embodiment

[0036] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0037] figure 1 It is a figure which shows the machining head replaceable rotary cutter 10 which concerns on one embodiment of this invention, figure 1 (a) is a front view viewed from a direction perpendicular to the axis O, figure 1 (b) is a bottom view seen from the front end side, figure 1 (c) is figure 1 IC-IC line sectional view in (a), figure 1 (d) is a perspective view. The machining head replaceable rotary tool 10 is a milling tool, and has a cylindrical shank 12 and a machining head 14 . The shank 12 is equivalent to the tool holder, and is made of relatively cheap high-speed tool steel, while the machining head 14 is made of cemented carbide, and is provided with six peripheral cutting edges 16, and is coated with a hard coating such as a compound coating as needed. The cutting edge diameter D of the peripheral cutting edge 16 is 12 mm in this ...

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Abstract

A machining head replaceable rotating tool having a fastening male screw and a fastening female screw disposed on respective shaft centers of one and the other of a machining head and a holder, the fastening male and female screws being threadably engaged with each other to concentrically and removably attach the machining head to a tip portion of the holder, the machining head and the holder being disposed with abutting surfaces abutted against each other in a fastened state when the fastening male and female screws are threadably engaged, the machining head replaceable rotating tool being integrally and rotationally driven via the holder in a tool rotation direction causing the fastening male and female screws to be fastened by a machining load to perform predetermined machining with the machining head, the abutment of the abutting surfaces preventing the fastening male and female screws from being further fastened by a machining load, the fastening male and female screws being saw-tooth buttress screws having a following flank angle [alpha] smaller than a leading flank angle [beta].

Description

technical field [0001] The present invention relates to a processing head replaceable rotary cutter, in particular to a processing head replaceable rotary cutter in which a cutter bar and a processing head are integrated through a connecting external thread and a connecting internal thread, which can be easily disassembled and replaced. Technology for replacing processing heads. Background technique [0002] There is known a processing head replaceable rotary tool (refer to Patent Document 1), (a) the connecting external threads and the connecting internal threads respectively provided on the axes of one and the other of the processing head and the tool bar are screwed together, Thus, the processing head can be detachably mounted concentrically with respect to the front end portion of the tool holder. (c) the machining head replaceable rotary tool applies a machining load to the connecting external thread and the connecting internal thread through the tool holder on the abu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23C5/22B23B51/00B23C5/10
CPCB23C2210/03B23B2260/1388B23B31/1122B23B2231/0204B23B31/005B23C2210/02B23C5/10Y10T408/95Y10T408/907Y10T409/30952
Inventor 大泽二朗伊东格
Owner OSG
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