Multifunctional thread milling cutter for machining speed reducer shell

Abstract

The utility model relates to the technical field of thread milling cutters, in particular to a multifunctional thread milling cutter for machining a speed reducer shell, which comprises a cutter body, a first cutting edge is arranged at the front end of the cutter body, and the first cutting edge is a thread cutting edge with the thread pitch of 1.5. A second cutting edge is arranged at the middle end of the cutter body, and the second cutting edge is a thread cutting edge with the thread pitch of 2.0; a handle part is arranged at the tail end of the cutter body, a through inner cooling liquid channel is formed in the central axis of the cutter body, and side cooling holes corresponding to the first cutting edge and the second cutting edge are formed in the left side and the right side of the inner cooling liquid channel correspondingly; through the design, the machining and orifice chamfering procedures of threaded holes with the thread pitches of 1.5 and 2.0 can be completed at the same time, and the machining efficiency is greatly improved; and the advantages of a multi-thread milling cutter and a single-thread milling cutter are combined, so that threaded holes with various thread pitches can be processed, and the processing efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to thread milling cutter technical field, concretely is a multifunctional thread milling cutter of speed reducer shell processing. BACKGROUND

[0002] Speed reducer is important component of transmission torque in mechanical parts, and there are a plurality of shafts, gear type parts in speed reducer, and the parts need to be installed on the outer shell of speed reducer.

[0003] The conventional thread hole processing generally adopts tap to process, but different thread types need different types of taps to process, and the tool needs to be frequently changed during processing, which affects the processing efficiency.

[0004] As a thread processing tool, the multi-tooth thread milling cutter can process different types of threads with the same pitch, and the processing efficiency is relatively high.

[0005] The speed reducer shell has more thread holes with a pitch of 1.5 and 2.0, and the thread hole orifice generally needs to be chamfered.

[0006] In summary, the utility model discloses a multifunctional thread milling cutter for speed reducer shell processing to solve the existing problems. INVENTION CONTENTS

[0007] The utility model discloses a multifunctional thread milling cutter for speed reducer shell processing to solve the problems in the background art.

[0008] To achieve the above object, the utility model provides the following technical scheme:

[0009] A multifunctional thread milling cutter for speed reducer shell processing, comprising a tool body, the front end of the tool body is provided with a cutting edge one, and the cutting edge one is a thread cutting edge with a pitch of 1.5;

[0010] The middle end of the tool body is provided with a cutting edge two, and the cutting edge two is a thread cutting edge with a pitch of 2.0;

[0011] The tail end of the cutter body is provided with a handle, and a central axis of the cutter body is provided with a through inner cooling liquid channel, wherein left and right sides of the inner cooling liquid channel are provided with side cooling holes corresponding to the first cutting edge and the second cutting edge respectively, and an outer wall of the cutter body is provided with a chip removal groove corresponding to the first cutting edge and the second cutting edge respectively.

[0012] The outer wall of the cutter body is provided with chamfered edges one and two on the left and right sides of the second cutting edge respectively.

[0013] As a preferred scheme of the utility model, the chip removal groove adopts a straight groove structure, and the first cutting edge and the second cutting edge both adopt a multi-tooth design.

[0014] As a preferred scheme of the utility model, the side cooling hole and the inner cooling liquid channel are in a mutual communication structure.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] In the utility model, the machining efficiency is greatly improved by simultaneously completing the thread hole machining and the hole mouth chamfering process with a pitch of 1.5 and 2.0, and the advantages of the multi-tooth thread milling cutter and the single-tooth thread milling cutter are combined, so that various pitch thread holes can be machined and the machining efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structural schematic view of the utility model.

[0018] In the figure: 1, cutter body; 101, first cutting edge; 102, second cutting edge; 103, handle; 104, inner cooling liquid channel; 105, side cooling hole; 106, chip removal groove; 107, chamfered edge one; 108, chamfered edge two. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0020] In order to facilitate understanding of the utility model, the utility model will be more fully described below with reference to the related drawings, and several embodiments of the utility model are given. However, the utility model can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and comprehensive.

[0021] It is to be understood that where an element such as a layer, region or substrate is described as being "on" another element, it can be directly on the other element or intervening elements can also be present. Where an element such as a layer, region or substrate is described as being "connected" to another element, it can be directly connected to the other element or intervening elements can also be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0023] Embodiments, please refer to Figure 1 The utility model provides a technical scheme:

[0024] A kind of multi-functional thread milling cutter of speed reducer shell processing, including cutter body 1, the front end of cutter body 1 is provided with cutting edge one 101, cutting edge one 101 is the thread cutting edge of pitch 1.5;

[0025] The middle end of cutter body 1 is provided with cutting edge two 102, and cutting edge two 102 is the thread cutting edge of pitch 2.0;

[0026] The tail end of cutter body 1 is provided with handle 103, and the central axis of cutter body 1 is provided with through inner cooling liquid passage 104, wherein the left and right sides of inner cooling liquid passage 104 are provided with side cooling holes 105 corresponding to cutting edge one 101 and cutting edge two 102 respectively, and the outer wall of cutter body 1 is provided with chip removal groove 106 corresponding to cutting edge one 101 and cutting edge two 102 respectively;

[0027] The outer wall of cutter body 1 is provided with chamfer blade one 107 and chamfer blade two 108 respectively on the left and right sides of cutting edge two 102, which can complete the chamfering process of hole after thread processing, reduce the frequency of tool changing, and improve the processing efficiency.

[0028] Chip removal groove 106 adopts straight groove structure, which improves the thread processing precision, stability and surface quality, and the cutter rigidity is better, so as to improve the thread processing precision and stability.

[0029] Cutting edge one 101 and cutting edge two 102 are both designed with multiple teeth, which can improve the processing efficiency.

[0030] The side cooling hole 105 and the inner cooling liquid channel 104 are in communication with each other, and the cutting fluid can directly reach the cutting edge to timely take away the cutting heat and the cutting chips, and improve the surface quality of the thread machining.

[0031] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A multi-functional thread milling cutter for machining of a gearbox housing, comprising a cutter body (1), characterized in that: The front end of the cutter body (1) is provided with a cutting edge one (101), and the cutting edge one (101) is a thread cutting edge with a pitch of 1.5; The middle end of the cutter body (1) is provided with a cutting edge two (102), and the cutting edge two (102) is a thread cutting edge with a pitch of 2.0; The tail end of the cutter body (1) is provided with a handle (103), and the central axis of the cutter body (1) is provided with a through inner cooling liquid channel (104), wherein the left and right sides of the inner cooling liquid channel (104) are respectively provided with side cooling holes (105) corresponding to the cutting edge one (101) and the cutting edge two (102), and the outer wall of the cutter body (1) is respectively provided with a chip groove (106) corresponding to the cutting edge one (101) and the cutting edge two (102); The outer wall of the cutter body (1) is respectively provided with a chamfer edge one (107) and a chamfer edge two (108) on the left and right sides of the cutting edge two (102).

2. The multi-functional thread milling cutter for machining of a gearbox housing according to claim 1, characterized in that: The chip groove (106) adopts a straight groove structure, and the cutting edge one (101) and the cutting edge two (102) both adopt a multi-tooth design.

3. The multi-functional thread milling cutter for machining of a gearbox housing according to claim 1, characterized in that: The side cooling hole (105) and the inner cooling liquid channel (104) are in a mutual communication structure.

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