CN204075256U - Combination T knife - Google Patents

Abstract

The utility model discloses a combination T type sword, its characterized in that: including the cutter arbor, the tip that is equipped with chip groove, cutter arbor on the cutter arbor is equipped with a plurality of blades with one heart, is equipped with a plurality of cutting parts on each blade, the cutting part contains blade face, first back blade face, second back blade face that intersect in proper order, the chip groove extends to blade department at the top always from the blade department at the bottom, and is located between corresponding two cutting parts, the blade face meets with the chip groove wall that corresponds.

Description

Combination T knife

technical field

The utility model relates to a processing cutter, in particular to a combined T-shaped cutter. the

Background technique

The T-shaped knife is used to process the grooves on the eye frame for inlaying lenses. The ordinary T-shaped knife can only process one pair of eye frames at a time. The processing efficiency is low and the processing time is long. Therefore, in view of the above problems, the designer A combined T-shaped knife is designed, which can process multiple pairs of eye frames at the same time in one clamping, thus greatly improving the processing efficiency and accuracy. the

Contents of the invention

In order to overcome the deficiencies of the prior art, the utility model provides a combined T-shaped knife with high processing efficiency and short processing time. the

The technical scheme that the utility model solves its technical problem adopts is:

The combined T-shaped knife is characterized in that: it includes a knife bar, a chip removal groove is provided on the knife bar, a number of blades are concentrically arranged at the end of the knife bar, and a number of cutting parts are arranged on each blade, and the cutting parts include sequentially intersecting The rake face, the first flank face, and the second flank face, the chip flute extends from the bottommost insert to the topmost insert, and is located between the corresponding two cutting parts. The rake The surface meets the corresponding flute wall. the

The blades at the top end are staggered by an angle φ to the blades at the bottom end. the

The angle is φ=30°. the

The cutting portion is provided with a third flank intersecting with the second flank, and the third flank is in contact with the corresponding wall surface of the flute. the

The flutes are helical. the

The beneficial effects of the utility model are: the utility model includes a cutter bar, the cutter bar is provided with a chip removal groove, the end of the cutter bar is concentrically provided with several blades, and each blade is provided with a plurality of cutting parts, and the cutting parts include The intersecting rake face, the first flank face, and the second flank face in turn, the chip flute extends from the bottommost blade to the topmost blade, and is located between the corresponding two cutting parts. The rake face is in contact with the corresponding chip flute wall, and through the above settings, each blade can process a pair of corresponding eye frames, thereby realizing. the

Description of drawings

Below in conjunction with accompanying drawing and embodiment the utility model is further described. the

Fig. 1 is the three-dimensional schematic view of the utility model;

Fig. 2 is the front schematic view of the utility model;

Fig. 3 is a schematic top view of the utility model. the

Detailed ways

Referring to Fig. 1 to Fig. 3, the utility model discloses a combined T-shaped knife, which includes a cylindrical knife bar 1, a chip removal groove 2 is arranged on the knife bar 1, and the end of the knife bar 1 is arranged concentrically from top to bottom. There are three blades 3, and four cutting parts 4 are evenly distributed along the side edge on each blade 3, and the cutting parts 4 include a rake face 5, a first flank face 6, and a second flank face 7 intersecting in sequence, The chip flute 2 extends from the bottommost blade 3 to the topmost blade 3, and is located between the corresponding two cutting parts 4, and the rake face 5 is in contact with the wall of the corresponding chip flute 2, Therefore, the iron filings flowing out through the rake face 5 are guided into the chip flute 2 and discharged. the

As shown in the figure, the topmost blade 3 to the bottommost blade 3 are sequentially arranged with an angle φ staggered. In this example, the staggered angle φ=30°. The above setting can ensure that the cutter bar 1 is evenly stressed during the cutting process, and a total of twelve cutting parts 4 on the three blades 3 are evenly separated on the projection plane, so as to avoid sudden cutting of the cutting parts 4 on different blades 3 at the same time, resulting in the cutting of the tool bar. 1 Too much force is too urgent, resulting in stress fatigue of the cutter bar 1, shortening the service life and increasing the machine load. the

As shown in the figure, the cutting part 4 is provided with a third flank 8 that intersects with the second flank 7, and the third flank 8 is in contact with the wall of the corresponding flute 2. In the above structure, the continuous The design of multiple flanks is beneficial to reduce the relief angle from the large angle to the small angle smoothly, which can not only ensure the sufficient strength of the cutter head, but also reduce the friction between the cutting edge and the processing surface, prevent heat, and effectively To improve cutting accuracy. the

The chip flute 2 is helical, and the helical chip flute 2 not only has a large chip capacity, but also the iron chips are pressed by the wall of the chip flute 2 during the rotation of the tool, so that it can be quickly guided Iron filings are discharged. the

A kind of combined T-shaped knife provided by the embodiment of the present invention has been introduced in detail above. The principle and implementation of the present invention have been explained by using specific examples in this paper. The description of the above embodiment is only used to help understand To understand the method of the present utility model and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present utility model, there will be changes in the specific implementation and scope of application. In summary, this specification The content should not be construed as limiting the utility model. the

Claims (5)

1. combine T-shaped cutter, it is characterized in that: comprise knife bar, knife bar is provided with chip area, the end of knife bar is provided with some blades with one heart, each blade is provided with some cutting portions, described cutting portion comprises the rake face, major first flank, the second rear knife face that intersect successively, described chip area extends to the blade place of pushing up most from the blade at the most end always, and is positioned between corresponding two cutting portions, and described rake face connects with corresponding chip area wall.

2. the T-shaped cutter of combination according to claim 1, is characterized in that: the blade of described top to lowermost end blade successively offset angular φ arrange.

3. the T-shaped cutter of combination according to claim 2, is characterized in that: the angle ranging from, φ=30 °.

4. the T-shaped cutter of combination according to claim 1, is characterized in that: described cutting portion is provided with the three rear knife face crossing with knife face after second, and after the 3rd, knife face connects with corresponding chip area wall.

5. the T-shaped cutter of combination according to claim 1, is characterized in that: described chip area is helical form.