CN102672252A

CN102672252A - Step-shaped chip separation disk milling cutter

Info

Publication number: CN102672252A
Application number: CN2012100208176A
Authority: CN
Inventors: 庞勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-15
Filing date: 2012-01-10
Publication date: 2012-09-19
Also published as: CN102328124A

Abstract

The invention relates to a milling cutter used on boring and milling machine tool equipment, in particular to a step-shaped chip separation disk milling cutter. Four T-shaped grooves are respectively arranged on a cutter head; four cutter bars are arranged in the four T-shaped grooves in a sliding mode; the cutter bars are provided with screwed holes; the cutter bars are connected with regulating bolts by the cutter head; the regulating bolts are twisted by an internal hexagonal wrench, so that the cutter bars can be driven to move along the axis of the cutter head; and by scales engraved on the cutter head and the cutter bars, the specific positions of the cutter bars relative to the cutter head can be conveniently known. In the manufacturing process of the cutter bars, the position for installing a blade has micro difference (1mm) in the radial direction of the cutter head, the four cutter bars are divided into two groups, the effect of milling in two layers when milling a plane can be conveniently implemented by regulating the regulating bolts and the thickness of a milling layer can be regulated, so that the chip separation milling is implemented; when the milling cutter is used for milling, the reduction of a milling force and a milling power can be implemented, the thickness of the milling layer which is milled in one step is increased, the milling efficiency is improved and the step-shaped chip separation disk milling cutter is convenient to operate and has strong practicality.

Description

Stepped branch bits dish milling cutter

[technical field]

The stepped branch bits dish milling cutter that the present invention relates to use on the machine tool.

[background technology]

Some milling class lathes such as CNC milling machine, plain-milling machine used clip type dish cutting plate for milling cutters installation site when milling plane is on the same radius of gyration and the same plane of rotation, and can not carry out staged cutting adjustment.It is little to have cutting depth, can not carry out staged cutting, can not once accomplish thick fine finishining, and cutting force and cutting power required during milling are bigger, and characteristics such as it is not steady to have a cutting, and impulsive force is big.

[summary of the invention]

The present invention proposes a kind of dish milling cutter that can carry out the cutting of stepped branch bits.

For solving the problems of the technologies described above; The present invention proposes following solution; Stepped branch bits dish milling cutter; Comprise cutterhead, handle of a knife, knife bar, blade, push type broach screw, buckle, adjustment bolt, screw, it is characterized in that axis direction has T type groove on the described cutterhead, knife bar can slide in T type groove.When adjusting to the right place, knife bar can lock knife bar with housing pin.

For solving the precise displacement problem of knife bar, on cutterhead and knife bar, be carved with scale, and utilize cursor principle to carry out accurate displacement (the actual displacement precision can reach 0.02mm), thereby the plane of rotation of point of a knife is in same plane when the same ladder of assurance multitool cuts.

Can move easily for the displacement that guarantees knife bar, be provided with the adjustment bolt, only need just can drive knife bar and on the axis direction of cutterhead, move with inner hexagon spanner twisting adjustment bolt.The restriction of the axial displacement of adjustment bolt, the circular hole and the buckle of cutterhead end face capable of using limit.

T type groove number on the cutterhead can change along with the variation of cutter diameter, can adopt the branch of 2,3,4,6 grooves, and the quantity of knife bar is corresponding with it.When adopting 2 grooves, can adopt 2 ladders to cut.Adopt 3 ladders to cut when adopting 3 grooves.Adopt 2 ladders to cut when adopting 4 grooves, this moment 2 is cutter one group, is in same ladder.Adopt 3 ladders to cut when adopting 6 grooves, this moment 2 is cutter one group, is in same ladder.

The ladder degree of depth of cutting can be adjusted easily in actual the use, and the back locking housing pin of adjusting to the right place gets final product., the degree of depth of basecoat ladder just can realize thick fine finishining simultaneously when being adjusted into allowance for finish.

The present invention can be convenient to use in machine tooling, only needs blade is installed, and knife bar is adjusted to the right place; The locking knife bar just can cut; Owing to be to carry out the ladder cutting, contrast common clip type dish milling cutter, can increase cutting depth in the cutting at one time; Improve stock-removing efficiency, easy to operate practical.

[description of drawings]

Fig. 1 is the axonometric drawing of stepped branch bits dish milling cutter.

Fig. 2 is the assembling exploded view of stepped branch bits dish milling cutter.

1-handle of a knife, 2-housing pin (locking knife bar), 3-housing pin (locking knife bar) among the figure

4-housing pin (locking knife bar), 5-housing pin (locking knife bar), 6-cutterhead, 7-knife bar 1

8-adjustment bolt, 9-push type broach screw, 10-blade, 11-knife bar 2,12-adjust bolt

13-push type broach screw, 14-blade, 15-buckle, 16-screw (compressing buckle)

17-screw (compressing buckle), 18-screw (compressing buckle), 19-housing pin (locking knife bar)

20-housing pin (locking knife bar), 21-hexagon socket head cap screw (upper tool pan)

22-screw (compressing buckle), 23-buckle, 24-housing pin (locking knife bar)

25-housing pin (locking knife bar), 26-screw (compressing buckle), 27-buckle

28-screw (compressing buckle), 29-buckle, 30-screw (compressing buckle), 31-screw (compressing buckle)

32-adjustment bolt, 33-blade, 34-push type broach screw, 35-knife bar 2,36-blade, 37-adjust bolt

38-knife bar 1,39-push type broach screw

Fig. 3 is the axonometric drawing of the cutterhead part of stepped branch bits dish milling cutter.

Fig. 4 installs the assembling of adjustment bolt and the sketch map of decomposition on the cutterhead of stepped branch bits dish milling cutter.

Fig. 5 is the cutterhead of stepped branch bits dish milling cutter and the locking state figure of knife bar high scale enlarged drawing and knife bar.

Fig. 6 is the partial enlarged drawing of the knife bar of stepped branch bits dish milling cutter.

Fig. 7 is the blade installation site disparity map of knife bar 1 and knife bar 2.

Fig. 8 is stepped cutting sketch map.

[specific embodiment]

Embodiment one

The stepped branch bits dish milling cutter that the present invention proposes; Comprise cutterhead (6), handle of a knife (1), knife bar 1 (7) (38), knife bar 2 (11) (35), blade (10) (14) (33) (36), push type broach screw (9) (13) (34) (39), buckle (15) (23) (27) (29), adjustment bolt (8) (12) (32) (37), screw (16) (17) (18) (22) (26) (28) (30) (31), hexagon socket head cap screw (21), housing pin (2) (3) (4) (5) (19) (20) (24) (25); Cutterhead and handle of a knife are connected through the hole axle in Fig. 1, Fig. 2; And by straight end-face key connection and transmission moment of torsion; Handle of a knife matches with the endoporus of machine tool chief axis, and cutterhead is fixed on the handle of a knife through hexagon socket head cap screw, in Fig. 3, Fig. 4, Fig. 6; Cutterhead is provided with 4 T type grooves can install 4 knife bars respectively; The back side of knife bar is provided with a screwed hole, can be connected with the adjustment bolt installed on the cutterhead, and the adjustment bolt is stuck between buckle and the cutterhead through buckle; And guaranteeing axially to have certain clearance, twisting adjustment bolt just can drive knife bar and produce displacement along the cutter axis direction.Buckle is pressed on the cutterhead through screw.In Fig. 5, be carved with scale respectively on cutterhead and the knife bar body, utilize cursor principle, can make knife bar produce accurate displacement, precision can reach 0.02mm.Adjusting to the right place when knife bar can be through housing pin locking knife bar.In Fig. 6, can see the clip type blade is installed on the knife bar, and screwed hole behind.In Fig. 7, can see that knife bar can be divided into knife bar 1 and knife bar 2 because this cutterhead is installed 4 knife bars, use in pairs, and when using the radius of gyration of knife bar 1 than the big 1mm of the radius of gyration of knife bar 2.Fig. 8 can find out that cutter carries out the situation of stepped cutting.

During work, can be divided into and only carry out roughing or thick fine finishining is once accomplished.When carrying out roughing.The height of adjusting two ladders according to the difference of rapidoprint is between 2～5mm, and use in pairs, only needs the locking knife bar according to the scale cutter back of adjusting to the right place, can carry out cut.When carrying out fine finishining; The height of ladder can be adjusted into about 0.5mm; This moment, roughing (surplus that can be bigger) was carried out on the upper strata of cutter, and lower floor carries out fine finishining, and for improving the surface roughness of part; Blade can adopt the blade with wide sword smoothing effect, improves the surface roughness of part.

Claims

1. stepped branch bits dish milling cutter comprises cutterhead, handle of a knife, knife bar, blade, push type broach screw, buckle, adjustment bolt, screw, it is characterized in that axis direction has T type groove on the described cutterhead, and knife bar can slide in T type groove.

2. stepped branch bits dish milling cutter as claimed in claim 1 has housing pin on it is characterized in that on the described cutterhead, after knife bar moves into place, can lock knife bar.

3. stepped branch bits dish milling cutter as claimed in claim 1 is characterized in that being carved with scale on described cutterhead and the knife bar, utilizes cursor principle to carry out accurate displacement to the position of knife bar.

4. stepped branch bits dish milling cutter as claimed in claim 1 is characterized in that the described knife bar back side is provided with screwed hole, can utilizes twisting adjustment bolt, drives knife bar and on cutterhead, carries out accurate displacement.

5. stepped branch bits dish milling cutter as claimed in claim 4 is characterized in that described adjustment bolt utilizes the circular hole of cutterhead end face and the axial displacement that buckle limits the adjustment bolt.

6. stepped branch bits dish milling cutter as claimed in claim 1 is characterized in that described cutterhead can not have 2,3,4,6 T type grooves according to the same of cutter diameter, and uses the knife bar quantity that matches.

7. stepped branch bits dish milling cutter as claimed in claim 6, the difference of place ladder when it is characterized in that described knife bar according to cutting, the blade installation site can differ 1～3mm on the direction of cutter rotary radius.