CN211588561U

CN211588561U - Combined cutter for increasing flat angle of local cutting edge

Info

Publication number: CN211588561U
Application number: CN201922459363.2U
Authority: CN
Inventors: 杜罗生; 范浩杰; 吴春露
Original assignee: SUZHOU FEIYU PRECISION TECHNOLOGY CO LTD
Current assignee: SUZHOU FEIYU PRECISION TECHNOLOGY CO LTD
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-29
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an increase gang tool of local blade straight angle in mould processing technology field aims at solving among the prior art gang tool and when cutting the appearance to the great spare part of shape specialty or angle, and the edge of a knife leads to shortening life and machining efficiency and the not high technical problem of precision because the product shape characteristics. The combined cutting tool comprises a lower blade and an upper blade capable of reciprocating along the vertical direction, the upper blade is provided with an arc-shaped cutting edge with two ends bent downwards, a first special-shaped groove is formed in the side face of the arc-shaped cutting edge, and a second special-shaped groove distributed oppositely to the first special-shaped groove is formed in the side face of the cutting edge of the lower blade.

Description

Combined cutter for increasing flat angle of local cutting edge

Technical Field

The utility model relates to an increase gang tool of local blade straight angle belongs to mould processing technology field.

Background

In the mold processing and manufacturing industry, parts with special shapes or large angles are often required to be cut, the upper blade and the lower blade frequently collide and rub with each other, the service life of a knife edge is shortened due to the shape characteristics of a product, and the cutting efficiency is low. In the cutting process, parts are easy to slightly laterally shift under the pushing of the acting force of the blade, the cutting machining precision is reduced, and further the adverse effect is generated on the product quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims to prior art's is not enough, the utility model aims to provide an increase gang tool of local blade straight angle to solve gang tool among the prior art when cutting the appearance to the great spare part of shape special or angle, the edge of a knife leads to shortening life and machining efficiency and the not high technical problem of precision owing to product shape characteristics.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides an increase gang tool of local blade straight angle, includes the bottom knife and can follow vertical direction reciprocating motion's last blade, it is equipped with the arc blade of both ends downwarping to go up the blade, arc blade side is equipped with first heterotypic groove, the blade side of bottom knife is equipped with the second heterotypic groove with first heterotypic groove opposite direction distribution.

Preferably, the cutting device further comprises an upper base plate detachably connected with the upper blade, and the upper base plate drives the upper blade to reciprocate along the vertical direction.

Preferably, the upper blade is detachably connected with the upper base plate through a transverse screw.

Preferably, the cutting tool further comprises a lower base plate detachably connected with the lower blade.

Preferably, the lower blade is detachably connected with the lower base plate through a transverse screw.

Preferably, the cutting edge surfaces of the upper blade or/and the lower blade are provided with quenching layers.

Compared with the prior art, the utility model discloses the beneficial effect who reaches: the upper blade is provided with the arc-shaped cutting edge with the two ends bent downwards, the arc-shaped cutting edge and the base material are always kept at an angle in the cutting process, namely, the left end and the right end of the cutting edge of the upper blade are always kept in point contact with the base material, the pressure applied by the cutting point is increased, and the cutting efficiency is improved. Because the left and right cutting points simultaneously apply inward acting force to the base material, the transverse stress balance of the base material is ensured, the transverse deviation is avoided, the cutting machining precision is favorably improved, and the product quality is ensured. Through the first type groove of blade side design and the second type groove at last blade and bottom knife to increased local blade flat angle, be favorable to improving the intensity of blade and bottom knife blade, improved the utility model discloses gang tool's life.

Drawings

Fig. 1 is a schematic front view of an embodiment of the present invention;

fig. 2 is a left side view structure diagram of the embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of the upper blade and the lower blade according to the embodiment of the present invention.

In the figure: 1. an upper substrate; 11. an upper blade; 12. a first profiled groove; 2. a lower substrate; 21. a lower blade; 22. a second profiled groove; 3. a transverse screw.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

It should be noted that, in the description of the present invention, the terms "front", "rear", "left", "right", "upper", "lower", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention but do not require the present invention to be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. As used in the description of the present invention, the terms "front," "back," "left," "right," "up," "down" and "in" refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

The utility model discloses specific embodiment provides an increase gang tool of local blade straight angle, as shown in fig. 1 and fig. 2, it is respectively the utility model discloses a foresight and left side look structure schematic diagram, gang tool includes upper substrate 1, upper slitter piece 11, infrabasal plate 2, bottom knife 21, upper slitter piece 11 is installed in 1 medial surface of upper substrate through transverse screw 3, bottom knife 21 is installed in 2 lateral surfaces of infrabasal plate through transverse screw 3. The cutting edge of the upper blade 11 is downward, and the cutting edge is an arc-shaped cutting edge with two downward bent ends. The upper base plate 1 is connected with a power output end of a driving source, and the upper base plate 1 can drive the upper blade 11 to reciprocate along the vertical direction under the driving of the driving source.

More specifically, as shown in fig. 3, which is a schematic cross-sectional structure diagram of the upper blade and the lower blade according to the embodiment of the present invention, a first special-shaped groove 12 is provided on one side of the cutting edge of the upper blade 11 facing the lower blade 21, and a second special-shaped groove 22 is provided on one side of the cutting edge of the lower blade 21 facing the upper blade 11.

Utilize the utility model discloses gang tool carries out the tangent plane to the substrate that is located between blade 11 and the bottom knife 21 and handles, because last blade 11 has the arc blade of both ends downwarping, this arc blade and substrate remain an angle throughout in the cutting process, and the point contact that remains throughout between 11 blade left and right ends of last blade and the substrate promptly has increased the pressure that the cutting point was applyed, is favorable to improving cutting efficiency. Because the left and right cutting points simultaneously apply inward acting force to the base material, the transverse stress balance of the base material is ensured, the transverse deviation is avoided, the cutting machining precision is favorably improved, and the product quality is ensured. The upper blade 11 and the lower blade 21 are correspondingly connected with the upper substrate 1 and the lower substrate 2 through the transverse screw 3, so that the upper blade 11 and the lower blade 21 with seriously worn cutting edges can be conveniently replaced, and meanwhile, a gasket can be additionally arranged between the transverse screw 3 and the upper substrate and the lower substrate so as to finely adjust the relative position of the upper blade 11 and the lower blade 21 in the transverse direction, and the processing precision is favorably ensured. Through the first type groove 12 of edge side design and the second type groove 22 at last blade 11 and bottom knife 21 to increased local blade flat angle, be favorable to improving the intensity of going up blade 11 and bottom knife 21 blade, improved the utility model discloses gang tool's life. In this embodiment, the surfaces of the cutting edges of the upper blade 11 and the lower blade 21 are both provided with quenching layers, which further increases the strength of the cutting edges of the upper blade 11 and the lower blade 21.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.

Claims

1. The utility model provides an increase gang tool of local blade straight angle, characterized by includes bottom knife piece (21) and can follow vertical direction reciprocating motion's last blade (11), it is equipped with the arc blade of both ends downwarping to go up blade (11), arc blade side is equipped with first profiled groove (12), the blade side of bottom knife piece (21) is equipped with second profiled groove (22) with first profiled groove (12) subtend distribution.

2. The gang tool for increasing the flat angle of the local cutting edge as claimed in claim 1, further comprising an upper base plate (1) detachably connected to the upper blade (11), wherein the upper base plate (1) drives the upper blade (11) to reciprocate in a vertical direction.

3. Combination tool for increasing the flat angle of a local cutting edge according to claim 2, characterized in that the upper blade (11) is detachably connected to the upper base plate (1) by means of a transverse screw (3).

4. The combination tool for increasing the flat angle of a partial cutting edge as set forth in claim 1, further comprising a lower base plate (2) detachably connected to the lower blade (21).

5. Combined tool for increasing the local edge flat angle according to claim 4, characterized in that the lower blade (21) is detachably connected to the lower base plate (2) by means of a transverse screw (3).

6. Combination tool for increasing the local edge flat angle according to claim 1, characterized in that the edge surfaces of the upper insert (11) or/and the lower insert (21) are provided with a quenching layer.