CN203526664U

CN203526664U - Milling cutter for vortex groove

Info

Publication number: CN203526664U
Application number: CN201320713975.XU
Authority: CN
Inventors: 吴进修
Original assignee: CHINA METAL (SUZHOU) PRECISION MACHINERY Co Ltd
Current assignee: CHINA METAL (SUZHOU) PRECISION MACHINERY Co Ltd
Priority date: 2013-11-14
Filing date: 2013-11-14
Publication date: 2014-04-09
Anticipated expiration: 2023-11-14

Abstract

The utility model discloses a milling cutter for a vortex groove. Eight helical cutting edges are arranged on the milling cutter; depth dimensions of chip grooves formed between every two adjacent cutting edges are 2.0 mm and each chip groove is provided with an outward taper of 1 degree in the axis direction from the top end of the milling cutter to the tool holder, and the depth is progressively diminished to ensure the sufficient diameter of the milling cutter core, so that the rigidity of the milling cutter during the cutting process is increased and the abrasiveness time of the milling cutter is prolonged. Therefore, the rigidity of the milling cutter is further enhanced and the service life is prolonged. The milling cutter is designed in that all components complement and interact with one another, so that the high rigidity, long service life and high feed speed of the milling cutter during the cutting are ensured; the milling cutter can fulfill the milling of two side surfaces and one bottom surface of the vortex groove with the depth of 50 mm at one time; the cutting perdurability reaches 40 h and the cutting length exceeds 640 meters; moreover, when the milling cutter is used for straight line milling, the cutting length can exceed1400 meters. Therefore, the production efficiency is effectively improved and the manufacturing cost is reduced.

Description

Volution trough Milling Process cutter

Technical field

The utility model relates to a kind of volution trough Milling Process cutter, refers more particularly to the high-efficiency and low-cost roughing tool of scroll compressor part volution trough.

Background technology

Development along with compressor of air conditioner manufacturing technology, scroll compressor compares piston reciprocating compressor and has that energy consumption is low, noise is little, reliable stable, the advantage such as maintenance cost is low, progressively replace piston reciprocating compressor, become compressor industry development inexorable trend.But scroll compressor manufacturing cost is relatively high, reduce manufacturing cost, the especially processing cost of its kernel component the orbiting and fixed scroll of scroll compressor, determine the key in universal screw compressor market from now on.Scroll plate molded line is hyperbolic function equation, and the compressor that the power of take is 10hp is example, and the length of run of scroll plate molded line is 720mm, and the molded line degree of depth is 50mm.The 4 sword ripple milling cutters that current more general processing mode is specification carry out the roughing of volution trough, the shortcoming of this tool sharpening is, when milling depth surpasses 3 times of tool diameter processing occasions, because cutter rigidity is poor, sword number only has 4 swords, causing the Tool in Cutting time is 6.7H, 108 meters of lengths of cut, life-span and production efficiency are low, and comprehensive process cost is higher.

Utility model content

The purpose of this utility model is to provide a kind of high efficiency volution trough roughing tool, and it has improved cutting feed speed and the service life of cutter effectively, can realize two sidewalls of volution trough and bottom surface high efficiency processing simultaneously.

For achieving the above object, the utility model is to realize by following technical scheme:

A kind of volution trough Milling Process cutter, it is characterized in that, 8 spiral helicine cutting edges are set on the cutter of cylindricality, the chip area depth dimensions forming between cutting edge is 2.0mm, and the degree of depth axis direction from cutter termination to install handle of a knife direction be designed with 1 ° to external taper, the degree of depth is progressively successively decreased.

The grooved of described chip area is U-shaped or shallow U-shaped.

The diameter of cutter is 15mm, the long 50mm of sword.

The beneficial effects of the utility model are: by improvement of the present utility model, realized in the situation that milling depth reaches 3.33 times of tool diameters, high efficiency Milling Process is carried out in two of scroll plate sides and a bottom surface simultaneously, its distinctive chip area degree of depth and groove design of while, guarantee the enough rigidity of cutter, can bear the cutting resistance that adds man-hour, the design of 8 cutting edge numbers, has promoted feed speed.More current sword volution trough milling cutter, this cutter has been realized the scroll plate roughing time and has been reduced to 160 seconds/part by 256 seconds/part, improving productivity 60%, Tool in Cutting number of packages is increased to 900 by 150, promote 6 times service life, overcome the deficiency of general milling cutter, Tool in Cutting speed and service life are improved greatly, effectively improve production efficiency, reduced manufacturing cost.

Accompanying drawing explanation

The existing tool sharpening schematic diagram of Fig. 1;

Fig. 2 the utility model tool sharpening schematic diagram;

Fig. 3 scroll plate top view;

Fig. 4 volution trough Milling Process of the present utility model cutter schematic diagram;

Fig. 5 is the left view of Fig. 4;

In figure, main symbol implication is:

1, handle of a knife; 2, scroll plate; 3, existing 4 angle of throat tools; 4, the utility model 8 angle of throat tools; 41, chip area; 42, chip area grooved; 43, cutting edge.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, illustrate the technical solution of the utility model.

In the prior art shown in Fig. 1, existing 4 angle of throat tool 3 clampings are on handle of a knife 1, by being connected of handle of a knife and machine tool chief axis, cutter produces rotation, carry out the Milling Process of scroll plate 2, milling mode is bilateral milling, two sides of a milling and a bottom surface, and a feed milling of axial depth completes.

In the schematic diagram shown in Fig. 2, Fig. 3, the utility model 8 angle of throat tool 4 clampings are on handle of a knife 1, by being connected of handle of a knife and machine tool chief axis, cutter produces rotation, carry out the Milling Process of scroll plate 2, milling mode is bilateral milling, two sides of a milling and a bottom surface, and a feed milling of axial depth completes.

Being the utility model 8 angle of throat tools 4 as shown in Figure 4, Figure 5, is a kind of volution trough processing milling cutter, and diameter, it is mainly characterized in that the design of the chip area degree of depth, grooved and sword number.Chip area 41 depth dimensionses are 2.0mm, and the degree of depth axis direction be designed with from bottom to top 1 ° to external taper, the degree of depth is progressively successively decreased, and guarantees enough cutter core diameters, to increase rigidity in tool cutting process, extends cutter wearing time.Chip area grooved 42 is designed to shallow U font, and chip area, in the narrowed width of circumferencial direction, to increase cutter sword number, further strengthens cutter rigidity, increases the service life.Cutting edge 43 sword numbers are designed to 8 cutting edges, and in the situation that single-blade cutting output is identical, because sword number increases, cutting feed speed is able to corresponding lifting.

Meeting under the prerequisite of chip space, chip area 41 degree of depth comparison with standard milling cutters shallow 33%, and groove depth at axis direction from bottom to top (from cutter end from handle of a knife direction, i.e. direction from left to right in figure) be designed with 1 ° to external taper, the degree of depth is progressively successively decreased, the top chip area degree of depth relative standard milling cutter shallow 60%, guarantee enough cutter core diameters, strengthened to a great extent cutter rigidity, guarantee that cutting depth is under the prerequisite of 3.33 times of tool diameters, can bear the cutting resistance of three faces of milling volution trough simultaneously, reduce feed path, reduce tool wear.Chip area grooved 42 is designed to shallow U font by the parabola shaped change of commonly using, and chip area, in the narrowed width of circumferencial direction, can increase cutter sword number, cutter rigidity is further strengthened, tool life.Cutting edge 43 sword numbers are designed to 8 cutting edges by 4 sword changes of routine, and in the situation that single-blade cutting output is identical, after sword number increases, machining feed speed is able to corresponding lifting.

The 3 places design of this practicality exploitation is complemented each other, is interacted, thereby the high rigidity in assurance tool cutting process, high life, high feed speed, can a milling complete the degree of depth and be two sides and a bottom surface (each 2.0mm of the processing capacity) processing of totally three faces of 50mm volution trough, the Tool in Cutting time reaches 40 hours, length of cut is more than 640 meters, this cutter is as being applied in line milling occasion, length of cut can reach more than 1400 meters, effectively improve production efficiency, reduced manufacturing cost.

Claims

1. a volution trough Milling Process cutter, it is characterized in that, 8 spiral helicine cutting edges are set on the cutter of cylindricality, the chip area depth dimensions forming between cutting edge is 2.0mm, and the degree of depth axis direction from cutter termination to install handle of a knife direction be designed with 1 ° to external taper, the degree of depth is progressively successively decreased.

2. volution trough Milling Process cutter according to claim 1, is characterized in that, the grooved of described chip area is U-shaped.

3. volution trough Milling Process cutter according to claim 1, is characterized in that, the diameter of cutter is 15mm, the long 50mm of sword.