CN202824792U

CN202824792U - Milling machine cutter

Info

Publication number: CN202824792U
Application number: CN 201220463682
Authority: CN
Inventors: 郑森法
Original assignee: NINGBO HAISHUN NUMERICAL CONTROL MACHINERY CO Ltd
Current assignee: NINGBO HAISHUN NUMERICAL CONTROL MACHINERY CO Ltd
Priority date: 2012-09-12
Filing date: 2012-09-12
Publication date: 2013-03-27
Anticipated expiration: 2022-09-12

Abstract

The utility model discloses a milling machine cutter. The milling machine cutter comprises a cutter holder, cutter bars installed on the cutter holder, and blades installed on the cutter bars. The cutter holder comprises a plurality of installation arms which extend in the radial direction. The milling machine cutter is characterized in that installation holes used for installing the cutter bars are formed in the portions of the installation bars, close to the outer edges. Distances between the centers of at least two of the installation holes and the corresponding outer edges are not equal. Vertical installation heights of at least two of the cutter bars are not equal. Layered cutting in the horizontal direction in the process of cutting is achieved through inconformity of installation centers of the cutter bars on the cutter holder, and layered cutting in the vertical direction in the process of the cutting is achieved through inconformity of extending lengths of the cutter bars out of the cutter holder. Torsion can be reduced, milling depth in each time of cutting is small, noise is little, machining time of workpieces is shortened, and service life of the cutter is long.

Description

A kind of cutter for milling machines

Technical field

The utility model relates to a kind of machinery processing apparatus, the cutter that especially a kind of milling machine is used.

Background technology

The roughing tool that is used for the cutting spray on the present milling machine, generally include cutterhead, the centre of cutterhead has installing hole, be installed in the knife bar on the milling machine table by installing hole, four cutter heads of even circumferential distribution of cutterhead, by locking device cutter head and cutterhead are fixed, the angle between adjacent two cutter heads is 90 °.

This cutter commonly used, general cutter head is uniform, and the blade angle of cutter head is consistent, and torque is larger during Tool in Cutting, thereby causes that the blade quick abrasion of blade, noise are large, long processing time, and service life is shorter.

The utility model content

Technical problem to be solved in the utility model provide a kind of process simple, noise is little, the cutter for milling machines of long service life.

The utility model solves the problems of the technologies described above the technical scheme that adopts: a kind of cutter for milling machines, comprise tool rest, be installed in the knife bar on the described tool rest, and be installed in blade on the described knife bar, described tool rest comprises a plurality of hold-down arms that radially extend, it is characterized in that, contiguous outer edge offers be used to the installing hole that described knife bar is installed on the described hold-down arm, center and the distance between the respective outer edges of at least two described installing holes are unequal, and the at right angle setting height of at least two described knife bars is unequal.

Described tool rest comprises equally distributed four described hold-down arms, center and the distance between the respective outer edges of the installing hole on two adjacent hold-down arms are unequal, the center of the installing hole on two relative hold-down arms equates with the distance between the respective outer edges, the layered cutting when having reached cutting on the horizontal direction.

Described knife bar is fixed by locking mechanism and described tool rest, and described locking mechanism comprises the screw rod that passes described tool rest and knife bar side and is arranged on described screw rod two ends with the nut of described screw rod locking.

Compared with prior art, the utility model has the advantage of: inconsistent in the mounting center of tool rest by knife bar, the layered cutting when having reached cutting on the horizontal direction; The length of stretching out tool rest by knife bar is inconsistent, and the layered cutting when having reached cutting on the vertical direction can reduce moment of torsion, and each bite is less, and noise is little, and shorten the process time of workpiece, and cutting-tool's used life is longer.

Description of drawings

Fig. 1 is the perspective view of cutter of the present utility model;

Fig. 2 is the side view of cutter of the present utility model;

Fig. 3 is the top view of cutter of the present utility model.

The specific embodiment

Embodiment is described in further detail the utility model below in conjunction with accompanying drawing.

Referring to Fig. 1-Fig. 3, a kind of cutter for milling machines comprises tool rest 1, is installed in the knife bar 2 on the tool rest 1, and is installed in the blade 3 on the knife bar 2.

Tool rest 1 comprises radially extension, equally distributed a plurality of hold-down arms 11, in the present embodiment, be four, contiguous outer edge offers for the installing hole 12 that knife bar 2 is installed on the hold-down arm 11, has distance D between the outward flange of the center of installing hole 12 and hold-down arm 11.Four distance D can be different, and are preferred, have certain ratio, in order to better control cutting output.In the present embodiment, the distance D on two relative hold-down arms 11 is identical, and the distance D on two adjacent hold-down arms 11 is then not identical.That is, the knife bar 2 of relatively installing is identical with the distance between hold-down arm 11 outward flanges, and the knife bar 2 of adjacent installation is then not identical with distance between hold-down arm 11 outward flanges.

Knife bar 2 is fixing by locking mechanism and tool rest 1, and in the present embodiment, locking mechanism comprises the screw rod 13 that passes tool rest 1 and knife bar 2 sides and is arranged on screw rod 13 two ends with the nut 14 of screw rod 13 lockings.The length that each knife bar 2 stretches out tool rest 1 is for consistent, and namely each knife bar 2 bottom surface be that unanimously the vertical height of knife bar 2 is inconsistent to the distance of tool rest 1 bottom surface, so that the blade of blade 3 is not consistent to the distance of tool rest 1.

Because when knife bar 2 and tool rest 1 are installed, mounting center inconsistent, layered cutting when having reached cutting on the horizontal direction, and knife bar 2 to stretch out the length of tool rest 1 inconsistent, layered cutting when having reached cutting on the vertical direction, can be so that each bite be less, noise is little, and cutting-tool's used life is longer.

The above only is preferred embodiment of the present utility model; should be pointed out that for the ordinary skill in the art, do not breaking away under the principle prerequisite of the present utility model; can also make various deformation and improvement, this also should be considered as protection domain of the present utility model.

Claims

1. cutter for milling machines, comprise tool rest (1), be installed in the knife bar (2) on the described tool rest (1), and be installed in blade (3) on the described knife bar (2), described tool rest (1) comprises a plurality of hold-down arms (11) that radially extend, it is characterized in that, the upper contiguous outer edge of described hold-down arm (11) offers be used to the installing hole that described knife bar (2) are installed (12), center and the distance between the respective outer edges of at least two described installing holes (12) are unequal, and the at right angle setting height of at least two described knife bars (2) is unequal.

2. cutter for milling machines as claimed in claim 1, it is characterized in that, described tool rest (1) comprises equally distributed four described hold-down arms (11), center and the distance between the respective outer edges of the installing hole (12) on adjacent two hold-down arms (11) are unequal, and the center of the installing hole (12) on relative two hold-down arms (11) equates with the distance between the respective outer edges.

3. cutter for milling machines as claimed in claim 1 or 2, it is characterized in that, described knife bar (2) is fixing by locking mechanism and described tool rest (1), and described locking mechanism comprises the screw rod (13) that passes described tool rest (1) and knife bar (2) side and is arranged on described screw rod (13) two ends with the nut (14) of described screw rod (13) locking.