CN205888202U

CN205888202U - Milling cutter

Info

Publication number: CN205888202U
Application number: CN201620627273.3U
Authority: CN
Inventors: 陈小惠
Original assignee: Huangyan Taizhou Aung Mould Co Ltd
Current assignee: Huangyan Taizhou Aung Mould Co Ltd
Priority date: 2016-06-21
Filing date: 2016-06-21
Publication date: 2017-01-18
Anticipated expiration: 2026-06-21

Abstract

The utility model discloses a milling cutter, including integrative tool bit and the handle of a knife that sets up, characterized by still includes the extension cover with the other end interference fit of handle of a knife, other end an organic whole of extension cover is provided with the fixed cutting ferrule that is used for by the centre gripping. The utility model has the characteristics of can adapt to the great mould of volume.

Description

Milling cutter

Technical field

This utility model is related to a kind of cutter, more specifically, it relates to a kind of milling cutter.

Background technology

Milling cutter, be for Milling Process, the rotary cutter with one or more cutters tooth.During work each cutter tooth successively between Cut the surplus of workpiece with having a rest.Milling cutter is mainly used in processing plane, hole milling, step, groove, profiled surface and cut-out on milling machine Workpiece etc..

In the actual course of processing, such as when larger to some volumes mould cuts, milling cutter needs to be deep into In mould, and because the length of milling cutter is inadequate, the tool rest clamping milling cutter can be led to collide with mould, working angles are caused to do Relate to.

Utility model content

In view of the shortcomings of the prior art, the purpose of this utility model is to provide a kind of mould that can be larger to volume Has the milling cutter normally being cut.

For achieving the above object, this utility model provides following technical scheme:

A kind of milling cutter, including the cutter head being wholely set and handle of a knife；Also include the prolongation with the other end interference fit of handle of a knife Set；The other end of described extending sleeve is wholely set for clamped fixing cutting ferrule.

By above technical scheme, by arranging this extending sleeve, the entire length enabling to milling cutter is increased, so When being deep in the larger mould of volume, the tool rest of clamping milling cutter would not with contacting dies, it is to avoid working angles are made Become to interfere.

Preferably, described extending sleeve includes the body of hollow setting, and one end of described body is provided with for handle of a knife insertion Slot；The bore of described slot is more than the hollow space of body.

By above technical scheme, when assembling handle of a knife and extending sleeve, first extending sleeve is heated, so that extending sleeve is occurred slight Expansion so that the bore of slot can slightly become big；Then handle of a knife is inserted in slot, after extending sleeve cools down, The bore of slot diminishes, and handle of a knife is firmly blocked.Further, since in working angles, cutter head is subject to when travelling forward Power is maximum, and this power is possible to lead to handle of a knife to move into slot；But the setting through above scheme, slot and extending sleeve The junction of hollow space form a recessed shoulder, when mounted, the end of handle of a knife can contact on recessed shoulder, thus not continuing Continuous movement.

Preferably, described body female thread is connected with a screw rod；Described handle of a knife be located at slot in one end be provided with The screw of screw rod cooperation.

By above technical scheme, after assembling handle of a knife, rotate screw rod so as to be screwed in the screw of handle of a knife, with knife Handle type becomes threaded, so it can be avoided that handle of a knife moves axially.

Preferably, described handle of a knife includes front shank body and rear shank body, and described front shank body is tapered, and rear shank body is in cylinder.

By above technical scheme, the front shank body of taper is not susceptible to fracture, and extends service life.

Preferably, the medial wall of the periphery of described rear shank body and slot is all in coarse setting, and roughness is identical.

By above technical scheme, the frictional force between shank body and slot after can increasing to a certain extent, it is to avoid milling In working angles, there is the movement of relative circumference or axial direction with extending sleeve in handle of a knife with knife.

Brief description

Fig. 1 is the explosive view of milling cutter；

Fig. 2 is the partial sectional view of milling cutter.

Reference: 1, cutter head；2nd, handle of a knife；21st, front shank body；22nd, rear shank body；221st, screw；3rd, extending sleeve；31st, slot； 32nd, recessed shoulder；4th, fixing cutting ferrule；5th, screw rod；51st, cross recess.

Specific embodiment

With reference to embodiment and accompanying drawing, the utility model is described in further detail, but reality of the present utility model The mode of applying is not limited only to this.

With reference to Fig. 1, Fig. 2, a kind of milling cutter, including cutter head 1, handle of a knife 2 and extending sleeve 3；Wherein, cutter head 1 and handle of a knife 2 one Setting, handle of a knife 2 includes front shank body 21 and rear shank body 22, front shank body 21 tapered so as to structural strength is higher, thus being not susceptible to Fracture, after extending service life, shank body 22 is in cylinder.

Extending sleeve 3 includes the body of hollow setting, and one end of body is provided with the slot 31 for handle of a knife 2 insertion, extending sleeve 3 The other end be wholely set for clamped fixing cutting ferrule 4.When being assembled to handle of a knife 2 on extending sleeve 3, first to extending sleeve 3 heating, make extending sleeve 3 that slight expansion to occur, so that the bore of slot 31 can slightly become big；Then handle of a knife 2 is inserted Enter in slot 31, after extending sleeve 3 cools down, the bore of slot 31 diminishes, and handle of a knife 2 is firmly blocked.Meanwhile, in order to increase Frictional force between handle of a knife 2 and slot 31, the periphery of rear shank body 22 and the medial wall of slot 31 are all in coarse setting and coarse Degree is identical, and so in milling cutter in working angles, handle of a knife 2 is just not susceptible to the movement of relative circumference or axial direction with extending sleeve 3.

In addition, in the present embodiment, the bore of this slot 31 is more than the hollow space of body so that slot 31 and extending sleeve 3 The junction of hollow space form a recessed shoulder 32, when mounted, the end of handle of a knife 2 can contact on recessed shoulder 32, thus Will not continue to move.

In addition, body female thread is connected with a screw rod 5, meanwhile, handle of a knife 2 be located at slot 31 in one end be provided with The screw 221 of screw rod 5 cooperation, after assembling handle of a knife 2, rotates screw rod 5 so as to be screwed in the screw 221 of handle of a knife 2, with knife Handle 2 forms threaded, so it can be avoided that handle of a knife 2 moves axially.The rear end of screw rod 5 is provided with " cross recess 51 ", work Make personnel to extend into inside it from the rear end of extending sleeve 3 using longer screwdriver, rotate screw rod 5.

Claims

1. a kind of milling cutter, including the cutter head (1) being wholely set and handle of a knife (2)；It is characterized in that, also include another with handle of a knife (2) The extending sleeve (3) of end interference fit；The other end of described extending sleeve (3) is wholely set for clamped fixing cutting ferrule (4)； Described extending sleeve (3) includes the body of hollow setting, and one end of described body is provided with the slot (31) inserting for handle of a knife (2)； The bore of described slot (31) is more than the hollow space of body；Described body female thread is connected with a screw rod (5)；Described handle of a knife (2) one end being located in slot (31) is provided with the screw (221) coordinating with screw rod (5)；Shank body before described handle of a knife (2) inclusion (21) and rear shank body (22), described front shank body (21) is tapered, and rear shank body (22) is in cylinder；The periphery of described rear shank body (22) And the medial wall of slot (31) is all in coarse setting, and roughness is identical.