CN103551646A

CN103551646A - Vortex groove milling tool

Info

Publication number: CN103551646A
Application number: CN201310562775.3A
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: 2014-02-05

Abstract

The invention discloses a vortex groove milling tool. Eight spiral cutting blades are arranged on the tool; the depth size of a scrap removal groove formed between the adjacent cutting blades is 2.0mm; the depth is designed to have 1-degree outward taper from the end of the tool to a tool handle in the axis direction, and is progressively decreased, so that the core diameter of the tool is enough, the rigidity of the tool in a cutting process is improved, the abrasion time of the tool is prolonged, the rigidity of the tool is further improved, and the service life is prolonged. The design is complementary and interactive, so that the high rigidity, long service life and high feeding speed of the tool in the cutting process are ensured, two side surfaces and one bottom surface of a vortex groove of which the depth is 50mm can be milled for one time, the cutting time of the tool reaches 40 hours, and the cutting length exceeds 640m. The tool is applied to the occasion of linear milling, the cutting length can exceed 1,400m, the production efficiency is effectively improved, and the manufacturing cost is reduced.

Description

Volution trough Milling Process cutter

Technical field

The present invention relates to a kind of volution trough Milling Process cutter, refer 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 15mm 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.

Summary of the invention

The object of the present invention is to provide a kind of high efficiency volution trough roughing tool, 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 present invention is achieved by the following technical solutions:

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, and the chip area depth dimensions forming between cutting edge is 2.0mm, and the degree of depth axis direction from cutter termination to 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 invention has the beneficial effects as follows: by improvement of the present invention, 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 15mm 4 sword volution trough milling cutters, 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 tool sharpening schematic diagram of the present invention;

Fig. 3 scroll plate top view;

Fig. 4 volution trough Milling Process of the present invention 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 present invention's 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 technical scheme of the present invention.

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 present invention's 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 present invention's 8 angle of throat tools 4 as shown in Figure 4, Figure 5, is a kind of volution trough processing milling cutter, and diameter 15mm, 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.