CN209902334U

CN209902334U - Length-adjustable milling cutter

Info

Publication number: CN209902334U
Application number: CN201920441282.7U
Authority: CN
Inventors: 刘兴
Original assignee: CHANGZHOU XINGQIANG TOOL Co Ltd
Current assignee: CHANGZHOU XINGQIANG TOOL Co Ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-01-07
Anticipated expiration: 2029-04-02

Abstract

The utility model relates to a milling cutter with adjustable length, which comprises a first handle, a second handle and a cutter head, wherein the second handle and the cutter head are integrally formed, the second handle comprises an upper surface, a lower surface, a left side surface and a right side surface, the upper surface and the lower surface are mutually parallel planes, the left side surface and the right side surface are arc surfaces, the first handle is cylindrical, one end of the first handle is provided with a slot for the second handle to be inserted, the left side surface of the second handle extends out from the left side of the slot, the right side surface of the second handle extends out from the right side of the slot, the left side surface and the right side surface of the second handle and the outer surface of the first handle are in the same arc surface, the left side surface, the right side surface and the outer surface of the first handle are provided with the same external thread, the first handle is provided with a nut which can be in threaded connection with the first handle and the second handle, the second handle is fixedly connected with the first handle through the nut, the utility model discloses adjustment milling cutter length is convenient, and adaptability is high, and the range of application is wide.

Description

Length-adjustable milling cutter

Technical Field

The utility model relates to a milling cutter, especially adjustable length milling cutter.

Background

The milling cutter on the existing market is fixed in length mostly, the milling cutter with different length specifications is required to be replaced according to different working requirements, the milling cutter is inconvenient to use, the application range is narrow, the milling cutter is replaced, the lengthening of the working time is also achieved, and the working efficiency is reduced.

Disclosure of Invention

The utility model aims at providing a convenient to use, strong adaptability, application scope wide adjustable length milling cutter.

Realize the utility model discloses the technical scheme of purpose as follows:

the milling cutter with the adjustable length comprises a first cutter handle, a second cutter handle and a cutter head, wherein the second cutter handle and the cutter head are integrally formed, the second knife handle comprises an upper surface, a lower surface, a left side surface and a right side surface, the upper surface and the lower surface are planes parallel to each other, the left side surface and the right side surface are arc surfaces, the first knife handle is cylindrical, one end of the first knife handle is provided with a slot for the second knife handle to insert, the left side surface of the second knife handle extends out from the left side of the slot, the right side surface of the second knife handle extends out from the right side of the slot, the left side surface and the right side surface of the second knife handle and the outer surface of the first knife handle are positioned on the same arc surface, the left side surface and the right side surface of the second knife handle and the outer surface of the first knife handle are provided with the same external threads, the first tool handle is provided with a nut which can be in threaded connection with the first tool handle and the second tool handle simultaneously, and the second tool handle is inserted into the slot of the first tool handle and then fixedly connected with the first tool handle through the nut.

After adopting above-mentioned structure, when needing to adjust milling cutter length, will grasp first handle of a knife and second handle of a knife earlier and make two handles of a knife fixed, then swivel nut for second handle of a knife breaks away from with the nut, slides the second handle of a knife after that, adjusts the extension length of second handle of a knife, then swivel nut once more, the nut once more with second handle of a knife threaded connection, realize the fixed connection of first handle of a knife and second handle of a knife, accomplish the adjustment to milling cutter length promptly, the utility model discloses adjustment milling cutter length is convenient, and adaptability is high, and the range of application is wide.

Preferably, in order to prevent the nut from loosening, a plurality of positioning holes are formed in the nut, a fixing block is arranged on the first cutter handle, a positioning rod in threaded connection with the fixing block is arranged on the fixing block, and the positioning rod is inserted into the positioning holes.

Preferably, in order to facilitate the butt joint of the second tool holder and the nut, a transition part is arranged at the end part of the second tool holder inserted into the slot, and the side surface of the transition part is a curved surface.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the connection between the nut and the first and second tool shanks.

In the figure: the tool comprises a first tool handle 1, a second tool handle 2, a tool bit 3, an upper surface 4, a lower surface 5, a left side surface 6, a right side surface 7, an external thread 8, a nut 9, a positioning hole 10, a fixing block 11, a positioning rod 12, a slot 13 and a transition part 14.

Detailed Description

It can be seen from fig. 1 and 2 that the length-adjustable milling cutter of the present invention comprises a first handle 1, a second handle 2 and a cutter head 3, the second handle and the cutter head are integrally formed, the second handle comprises an upper surface 4, a lower surface 5, a left side surface 6 and a right side surface 7, the upper surface and the lower surface are parallel planes, the left side surface and the right side surface are arc surfaces, the first handle is cylindrical, one end of the first handle is provided with a slot 13 for the second handle to be inserted into, the left side surface of the second handle extends out from the left side of the slot, the right side surface of the second handle extends out from the right side of the slot, the left side surface and the right side surface of the second handle and the outer surface of the first handle are in the same arc surface, the left side surface and the right side surface of the second handle and the outer surface of the first handle are provided with the same external threads, the first handle and the second handle are provided with a nut which can be simultaneously in threaded, the second knife handle is fixedly connected with the first knife handle through a nut after being inserted into the slot of the first knife handle, a plurality of positioning holes are formed in the nut, a fixing block is arranged on the first knife handle, a positioning rod in threaded connection with the fixing block is arranged on the fixing block and inserted into the positioning holes, a transition portion 14 is arranged at the end portion, inserted into the slot, of the second knife handle, and the side face of the transition portion is a curved surface. .

After adopting above-mentioned structure, when needing to adjust milling cutter length, seize first handle of a knife and second handle of a knife earlier and make two handles of a knife immovable, then swivel nut, make second handle of a knife and nut break away from, slide the second handle of a knife after that, adjust the extension length of second handle of a knife, then swivel nut once more, the nut once more with second handle of a knife threaded connection, realize the fixed connection of first handle of a knife and second handle of a knife, accomplish the adjustment to milling cutter length promptly, can prevent simultaneously through the locating lever that the nut from receiving the vibration influence to rotate by oneself in the milling cutter work engineering, become flexible, make the connection of first handle of a knife and second handle of a knife more stable, the utility model discloses adjustment milling cutter length is convenient, and adaptability is high, and.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. Adjustable length milling cutter, its characterized in that: comprises a first knife handle, a second knife handle and a knife head, wherein the second knife handle and the knife head are integrally formed, the second knife handle comprises an upper surface, a lower surface, a left side surface and a right side surface, the upper surface and the lower surface are parallel planes, the left side surface and the right side surface are arc surfaces, the first knife handle is cylindrical, one end of the first knife handle is provided with a slot for the second knife handle to insert, the left side surface of the second knife handle extends out from the left side of the slot, the right side surface of the second knife handle extends out from the right side of the slot, the left side surface and the right side surface of the second knife handle and the outer surface of the first knife handle are positioned on the same arc surface, the left side surface and the right side surface of the second knife handle and the outer surface of the first knife handle are provided with the same external threads, the first tool handle is provided with a nut which can be in threaded connection with the first tool handle and the second tool handle simultaneously, and the second tool handle is inserted into the slot of the first tool handle and then fixedly connected with the first tool handle through the nut.

2. The length adjustable milling cutter according to claim 1, wherein: the nut is provided with a plurality of positioning holes, the first cutter handle is provided with a fixing block, the fixing block is provided with a positioning rod in threaded connection with the fixing block, and the positioning rod is inserted into the positioning holes.

3. The length adjustable milling cutter according to any one of claims 1 or 2, wherein: the end part of the second tool holder inserted into the slot is provided with a transition part, and the side surface of the transition part is a curved surface.