CN203437717U

CN203437717U - T-shaped slot milling cutter

Info

Publication number: CN203437717U
Application number: CN201320526196.9U
Authority: CN
Inventors: 李艽
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-19
Filing date: 2013-08-19
Publication date: 2014-02-19
Anticipated expiration: 2023-08-19

Abstract

The utility model discloses a T-shaped slot milling cutter which comprises a cylindrical cutter bit substrate and hard alloy blades which are welded on the cutter bit substrate, wherein at least four spiral-line-shaped chip accommodating grooves are formed at equal intervals around the axis of the cutter bit substrate in the circumference of the cutter bit substrate; auxiliary chip discharging ports are formed in two ends of each chip accommodating groove; each blade is spiral-line-shaped, and spiral line shapes of the blades are the same as those of the chip accommodating grooves; one of the blades is embedded in and welded on an edge on the same side of each chip accommodating groove; spiral cutting edges of the blades are main cutting blades; and an auxiliary cutting edge is formed at each end of each blade, and the lowest point of each auxiliary cutting edge is higher than two end surfaces of each chip accommodating groove. According to the T-shaped slot milling cutter, cutter teeth are uniformly and equally divided, the cutter teeth are arranged at equal intervals in middle places, the cutting capacity is high, chips can be discharged smoothly, cutting feed is performed stably, the working efficiency is high, the cutter is durable, and the service life is long.

Description

T-slot cutter

Technical field

The utility model belongs to machining tool, is specifically related to a kind of T-slot cutter.

Background technology

Existing T-slot cutter (GB/T10948-2006) is that a kind of carbide chip is tilting, side set is welded on the milling cutter on cutter hub, is side set cutter, long 0.5 times of being generally no more than cutter work rotating diameter of sword of blade, and sword is long shorter; The decile of cutter tooth is poor, and the chip pocket of cutter and chip area change greatly.Therefore, its cutting power is poor, and feed is not brisk; During cutting, cutter vibrations are larger, steady not, easily forge a knife.

Summary of the invention

The purpose of this utility model is to overcome the existing above-mentioned deficiency of existing T-slot cutter, proposes that a kind of cutting power is strong, feed T-slot cutter stably.

The technical scheme that realizes above-mentioned purpose is: a kind of T-slot cutter, comprise cylindrical cutter head matrix and be welded on the carbide alloy tool section on cutter head matrix, on the periphery of described cutter head matrix, have at least four roads around its axis decile spiral yarn shaped chip pocket spaced apart, the two ends of chip pocket are provided with secondary chip removal mouth; Described tool section is spiral yarn shaped, spiral yarn shaped identical with described chip pocket; On the homonymy bead of per pass chip pocket, inlay and be welded with a described tool section; The helix cutting edge of tool section is main cutting edge, and respectively there is a front cutting edge at the two ends of tool section, and the minimum point of front cutting edge is higher than chip pocket both ends of the surface.

Further, on described main cutting edge, have 1～2 chip dividing groove.

Further, on described every tool section, the handing-over corner of main cutting edge and two ends front cutting edge is made as chamfering form, forms the relief angle of tool section.

Further, the spiral angle of described chip pocket and tool section is 20 °～30 °.

Further, the angle between the cutting edge of described front cutting edge and the cutting edge of main cutting edge is 88 °～89 °.

The utility model cutter tooth decile is even, and centre everywhere spacing is consistent, and cutting power is strong, and chip removal is smooth and easy, and feed is steady, and operating efficiency is high, and cutter is durable, and the life-span is long.

Accompanying drawing explanation

Fig. 1 is the front view of an embodiment of the utility model.

Fig. 2 is the left view of Fig. 1.

Fig. 3 is that a tool section is to the sectional stretch-out view of cutter hub central axis.

Fig. 4 is A portion enlarged drawing in Fig. 3.

In figure: 1. cutter head matrix, 2. handle of a knife, 3. tool section, 4. main cutting edge, 5. front cutting edge, 6. chip pocket, 7. secondary chip removal mouth, 8. relief angle, 9. chip dividing groove, β. helical angle.

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

As shown in Figures 1 to 4, the utility model from outside upper see with welded type helical tooth cutter more approaching.It comprises cylindrical cutter head matrix 1, handle of a knife 2 and is welded on the carbide alloy material tool section 3 on cutter head matrix, on the periphery of cutter head matrix 1, have at least four roads around its axis decile spiral yarn shaped chip pocket 6 spaced apart, the two ends of chip pocket 6 are secondary chip removal mouth 7; Tool section 3 is spiral yarn shaped, the spiral yarn shaped and chip pocket 6 of tool section 3 spiral yarn shaped identical; On the homonymy bead of per pass chip pocket 6, inlay and be welded with a tool section 3; The helix cutting edge of tool section 3 is main cutting edge 4, and respectively there is a front cutting edge 5 at the two ends of tool section 3, and the minimum point of front cutting edge is higher than the both ends of the surface of chip pocket.

In the present embodiment, have 1～2 chip dividing groove 9 on main cutting edge, as shown in Figure 1 and Figure 4, chip dividing groove can greatly reduce resistance to cutting, is also beneficial to iron filings from the interior discharge of chip pocket 6 simultaneously; On every tool section 3, main cutting edge 4 is made as chamfering form with the handing-over corner of two ends front cutting edge 5, forms the relief angle 8 of tool section 3, and this relief angle phenomenon of can effectively avoiding forging a knife occurs; The helixangleβ angle of chip pocket 6 and tool section 3 is 20 °～30 °, and this spiral angle can guarantee that Tool in Cutting is steady, can not shake; Angle between the cutting edge of the cutting edge of front cutting edge 5 and main cutting edge 4 is 88 °～89 °, and the front cutting edge 5 under this state does not press from both sides cutter in working angles, can improve the durability of cutter, and guarantees the base altitude size of the T-shaped groove of part to be processed.

It should be noted that, the number of chip pocket 6 and tool section 3 is to determine according to tool diameter, and tool diameter is larger, the quantity of chip pocket 6 and tool section 3 is more, generally, and when tool diameter is 16mm～32mm, quantity Ge Wei tetra-roads of chip pocket 6, the quantity of tool section 3 is four; When tool diameter is 30mm when above, more than quantity Ge Wei six roads of chip pocket 6, the quantity of tool section 3 is more than six.

The key factor that the utility model cutting power is strong is that the sword length of main cutting edge 4 is 0.4～1.25 times of its work rotating diameter, than the sword of existing side set cutter, grows up 1 times～2 times; Another factor is that respectively there is a front cutting edge 5 at the two ends of main cutting edge 4, and only have a front cutting edge on existing each blade of side set cutter.

Claims

1. a T-slot cutter, comprise cylindrical cutter head matrix and be welded on the carbide alloy tool section on cutter head matrix, it is characterized in that: on the periphery of described cutter head matrix, have at least four roads around its axis decile spiral yarn shaped chip pocket spaced apart, the two ends of chip pocket are provided with secondary chip removal mouth; Described tool section is spiral yarn shaped, spiral yarn shaped identical with described chip pocket; On the homonymy bead of per pass chip pocket, inlay and be welded with a described tool section; The helix cutting edge of tool section is main cutting edge, and respectively there is a front cutting edge at the two ends of tool section, and the minimum point of front cutting edge is higher than chip pocket both ends of the surface.

2. according to T-slot cutter claimed in claim 1, it is characterized in that: on described main cutting edge, have 1～2 chip dividing groove.

3. according to the T-slot cutter described in claim 1 or 2, it is characterized in that: on described every tool section, the handing-over corner of main cutting edge and two ends front cutting edge is made as chamfering form, forms the relief angle of tool section.

4. according to T-slot cutter claimed in claim 1, it is characterized in that: the spiral angle of described chip pocket and tool section is 20 °～30 °.

5. according to T-slot cutter claimed in claim 1, it is characterized in that: the angle between the cutting edge of described front cutting edge and the cutting edge of main cutting edge is 88 °～89 °.