CN210937342U

CN210937342U - A cutting edge inequality divides milling cutter for processing compressor vortex

Info

Publication number: CN210937342U
Application number: CN201921700215.9U
Authority: CN
Inventors: 王迪
Original assignee: Suzhou Spandi Precision Tools Co ltd
Current assignee: Chuzhou Yongpu Alloy Tool Co ltd
Priority date: 2019-10-11
Filing date: 2019-10-11
Publication date: 2020-07-07
Anticipated expiration: 2029-10-11

Abstract

The utility model discloses a cutting edge inequality divides milling cutter for processing compressor vortex, including handle of a knife, cutter body, all sword and helicla flute, its characterized in that: the cutter body includes the end sword of five inequality divisions, including the tooth's socket between the end sword, adjacent five the end sword is 67 along the central axis direction of cutter body to the plane of projection of cutter body bottom surface and the shared angle of an adjacent tooth's socket in proper order, 77, 72, 67, 77, its technical scheme main points are through adopting the incomplete equipartition of five sword with the end sword, prevent that the cutter from producing resonance with the product in the course of working, prevent that long-time processing from leading to part surface machining quality to reduce, promote processing product quality.

Description

A cutting edge inequality divides milling cutter for processing compressor vortex

Technical Field

The utility model relates to a machining technology field, more specifically say, it relates to a cutting edge inequality divides milling cutter for processing compressor vortex.

Background

The milling cutter is a rotary cutter which is used for milling and provided with one or more cutter teeth, and the cutter teeth cut off the allowance of a workpiece intermittently in sequence during working; the milling cutter is mainly used for processing planes, steps, grooves, formed surfaces, cut-off workpieces and the like on a milling machine.

When the existing end milling cutter is used for machining parts such as compressor scroll, the following defects are mainly existed: 1. the cutting edges of the traditional end mill are evenly distributed, continuous harmonic vibration can be generated during processing, and particularly when the same (vortex type) processing feeding mode is kept for a long time, the processing quality of the surface of a part is reduced due to long-time processing, so that the workpiece is repaired, and even the workpiece can be scrapped; 2. the strength of the cutter is not enough, and the processing life is greatly influenced; 3. when some deeper slotted holes are processed, burrs are easily left at the opening of the slotted hole, secondary processing is needed, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a cutting edge inequality divides milling cutter for processing compressor vortex, it has can effectively reduce the vibration, promotes cutter intensity, mills the effect

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a cutting edge does not divide milling cutter equally for processing compressor vortex, includes handle of a knife, cutter body, week sword and helicla flute, its characterized in that: the cutter body includes five unequally divided end blades, include the tooth's socket between the end blade, five adjacent end blade is 67 along the central axis direction of cutter body to the plane of projection of cutter body bottom surface and the shared angle of an adjacent tooth's socket in proper order, 77, 72, 67, 77.

Preferably, the bottom edge comprises a wiper edge, and the wiper edge is recessed by an angle of 0.5 °.

Preferably, a chamfer angle with an included angle of 45 degrees with the peripheral edge at the position is arranged at the connecting position of the peripheral edge and the cutter body, and the bottom line of the chamfer angle is perpendicular to the tangent line of the peripheral edge at the position.

Preferably, the spiral angle of the spiral groove is 30-40 degrees.

Preferably, the peripheral edge includes a peripheral edge rake angle and a peripheral edge relief angle, and the angles of the peripheral edge rake angle and the peripheral edge relief angle are 4 ° and 11 °, respectively.

Preferably, the diameters of the tool shank and the tool body are 12mm and 10mm respectively.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the five blades are not completely equally divided, so that the cutter is prevented from resonating with a product in the machining process, the reduction of the machining quality of the surface of a part caused by long-time machining is prevented, and the quality of a machined product is improved;

2. by arranging the bottom edge smoothing edge, the rigidity of the sharp corner of the cutter is increased, the inner concave angle of the smoothing edge is 0.5 degree, and the contact area of the bottom edge is increased, so that the finish degree of the bottom edge is increased;

3. the cutter external diameter D10 connects D12 handle of a knife, increases the cutter rigidity, and the department of meeting of circumference sword and cutter body is provided with 45 degrees chamfers, gets rid of hole exit burr, and a sword is multi-purpose.

Drawings

FIG. 1 is a schematic view of a tool;

fig. 2 is a schematic structural view of an unequal bottom edge.

In the figure: 1. a knife handle; 2. a cutter body; 21. a peripheral edge; 211. chamfering; 22. a helical groove; 23. a bottom edge; 24. a tooth socket; 231. and (4) smoothing the edge.

Detailed Description

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

The utility model provides a cutting edge unequal partition milling cutter for processing compressor vortex, refer to fig. 1 and 2, it includes handle of a knife 1, cutter body 2, all sword 21 and helicla flute 22, cutter body 1 includes five unequal end sword 23, include tooth's socket 24 between the end sword 23, five adjacent end sword 23 are along the center pin direction of cutter body 2, the angle that projection plane and an adjacent tooth's socket 24 account for to the bottom surface of cutter body 2 is 67 in proper order, 77, 72, 67, 77, through adopting five incomplete equipartions of sword, prevent that the cutter from producing resonance with the product in the course of working, prevent that long-time processing from leading to part surface machining quality to reduce, promote processing product quality.

The bottom edge 23 includes a wiper edge 231, and the wiper edge 231 has an inner concave angle of 0.5 ° for increasing the strength of the tool, increasing the rigidity of the sharp corner of the tool, and increasing the contact area of the bottom edge 23 to increase the finish of the bottom edge 23.

The joint of the peripheral edge 21 and the cutter body 2 is provided with a chamfer 211 with an included angle of 45 degrees with the peripheral edge 21, the bottom line of the chamfer 211 is perpendicular to the tangent line of the peripheral edge 21 at the position, and the chamfer 211 with the angle of 45 degrees is arranged, so that burrs at the hole outlet can be conveniently removed, and the cutter is multipurpose.

The spiral angle of the spiral groove 22 is 30-40 degrees, the peripheral edge 21 comprises a peripheral edge 21 front angle and a peripheral edge 21 back angle, the angles of the peripheral edge 21 front angle and the peripheral edge 21 back angle are respectively 4 degrees, the diameters of the cutter handle 1 and the cutter body 2 are respectively 12mm and 10mm, the overall strength of the cutter is high, and the spiral groove is suitable for finish machining of compressor scroll parts.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims

1. The utility model provides a cutting edge does not divide milling cutter equally for processing compressor vortex, includes handle of a knife, cutter body, week sword and helicla flute, its characterized in that: the cutter body includes five unequally divided end blades, include the tooth's socket between the end blade, five adjacent end blade is 67 along the central axis direction of cutter body to the plane of projection of cutter body bottom surface and the shared angle of an adjacent tooth's socket in proper order, 77, 72, 67, 77.

2. The unequal-blade milling cutter for machining compressor scrolls according to claim 1, wherein: the bottom edge comprises a wiper edge, and the inner concave angle of the wiper edge is 0.5 degrees.

3. The unequal-blade milling cutter for machining compressor scrolls according to claim 1, wherein: the peripheral edge is provided with a chamfer angle of 45 degrees with the peripheral edge at the position where the peripheral edge is connected with the cutter body, and the bottom line of the chamfer angle is vertical to the tangent line of the peripheral edge at the position.

4. The unequal-blade milling cutter for machining compressor scrolls according to claim 1, wherein: the spiral angle of the spiral groove is 30-40 degrees.

5. The unequal-blade milling cutter for machining compressor scrolls according to claim 1, wherein: the peripheral edge comprises a peripheral edge rake angle and a peripheral edge relief angle, and the angles of the peripheral edge rake angle and the peripheral edge relief angle are respectively 4 degrees and 11 degrees.

6. The unequal-blade milling cutter for machining compressor scrolls according to claim 1, wherein: the diameters of the knife handle and the knife body are respectively 12mm and 10 mm.