CN214644471U - Point cutting woodworking tool - Google Patents

Abstract

The utility model relates to the technical field of woodworking processing tools, in particular to a point cutting woodworking processing tool, which comprises a tool handle and a tool body integrated with the tool handle; the cutter body comprises a plurality of cutting parts which are arranged at equal intervals in the same clockwise direction, each cutting part is provided with a flat bottom surface, an inclined side surface and an upper surface, and an L-shaped cutting edge is embedded in the periphery of the flat bottom surface; l type sword includes horizontal cutting edge and vertical cutting edge, the horizontal cutting edge with the upper surface downward sloping sets up, vertical cutting edge with the leaned side leanin set up and with the center pin of handle of a knife forms the contained angle of certain angle, adopts the mode of point cutting, can prevent effectively that plank surface from exploding the limit, and the cutting plane is smooth, improves the result of use of plank.

Description

Point cutting woodworking tool

Technical Field

The utility model relates to a carpenter processing cutter technical field, concretely relates to point cutting carpenter processing cutter.

Background

A woodworking tool for machining wood into a desired shape and size by a cutting method is classified into a saw, a blade, a milling cutter, a drill, a mortise machining tool, and the like. Wherein the milling cutter is a rotary cutter having one or more cutter teeth, each of which intermittently cuts off the allowance of the workpiece in turn by relative movement of the workpiece and the milling cutter. The milling cutter is widely used for processing planes, forming surfaces, mortises, tenons, slotted holes, sculptures and the like in joinery production.

When punching and grooving the carpenter, generally adopt milling cutter, current milling cutter is when punching the plank, and the plank surface is easy to appear exploding the limit, and the cutting plane is smooth level inadequately, and the easy burr that appears influences the result of use of plank.

SUMMERY OF THE UTILITY MODEL

For solving the above-mentioned problem that current carpenter's processing cutter exists, the utility model provides a point cutting carpenter's processing cutter adopts the mode of point cutting, can prevent effectively that the plank surface from exploding the limit, and the cutting plane is smooth, improves the result of use of plank.

The utility model provides a technical scheme that its technical problem adopted is: a point cutting woodworking tool comprises a tool shank and a tool body which is integrally formed with the tool shank;

the cutter body comprises a plurality of cutting parts which are arranged at equal intervals in the same clockwise direction, each cutting part is provided with a flat bottom surface, an inclined side surface and an upper surface, and an L-shaped cutting edge is embedded in the periphery of the flat bottom surface;

the L-shaped cutting edge comprises a horizontal cutting edge and a longitudinal cutting edge, the horizontal cutting edge and the upper surface are arranged in a downward inclined mode, and the longitudinal cutting edge and the inclined side face are arranged in an inward inclined mode and form an included angle with the central shaft of the cutter handle at a certain angle.

Further, the upper surface is provided with a concave chip removal groove.

Furthermore, an included angle formed by the longitudinal cutting edge and a central axis of the knife handle is 15 +/-2 degrees.

Furthermore, the number of the cutting parts is four, and the four cutting parts are symmetrically arranged in a staggered mode.

Further, the periphery of the flat bottom surface is provided with an L-shaped groove matched with the L-shaped blade.

Furthermore, the L-shaped cutting edge is made of PCD diamond cutters.

Furthermore, the tool handle and the tool body are made of tungsten-manganese alloy.

The technical scheme provided by the embodiment of the application at least has the following technical effects or advantages:

through setting up the cutter body into a plurality of equidistant cutting portions of same hour hand direction, the cutting portion has the flat plane, incline side and upper surface, the flat plane periphery inlays and is equipped with L type cutting edge, the horizontal cutting edge and the upper surface downward slope setting of L type cutting edge, vertical cutting edge and the inboard slope setting of incline side and the contained angle that forms certain angle with the center pin of handle of a knife, make the cutting of L type cutting edge be the point cutting, L type cutting edge stress is concentrated in the machined surface, can prevent effectively that to punch or fluting plank surface explode the limit and the chip removal is smooth and easy, the cutting plane is also more smooth, no burr.

Through the chip groove that sets up the indent on the upper surface, be favorable to processing the concentrated discharge of saw-dust, prevent the secondary bonding of saw-dust, further ensure the smoothness on plank surface.

Drawings

FIG. 1 is a front view of a point cut woodworking tool of an embodiment of the present application;

FIG. 2 is a schematic structural view of a point-cut woodworking tool according to an embodiment of the present disclosure;

FIG. 3 is a top view of a point cut woodworking tool in accordance with an embodiment of the present application;

fig. 4 is a bottom view of a point cut woodworking tool of an embodiment of the present application.

In the figure: 1. a knife handle; 2. a cutter body; 21. a cutting portion; 211. a flat bottom surface; 212. a beveled side; 213. an upper surface; 2131. a chip groove; 3. an L-shaped blade; 31. a horizontal blade; 32. a longitudinal blade.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects solved by the present invention more clearly understood, the embodiments of the present invention are further described below with reference to the accompanying drawings and embodiments.

As shown in fig. 1-4, the utility model discloses a point cutting woodworking tool, including handle of a knife 1 and cutter body 2, handle of a knife 1 and cutter body 2 integrated into one piece. Wherein handle of a knife 1 is used for with engraver fixed connection in order to process the plank, and cutter body 2 is used for punching or fluting the plank.

In a preferred embodiment, the cutter body 2 includes a plurality of cutting portions 21 arranged at equal intervals in the needle direction, the cutting portions 21 have a flat bottom surface 211, a slanted side surface 212 and an upper surface 213, and the L-shaped cutting edge 3 is embedded in the outer periphery of the flat bottom surface 211.

The periphery of the flat bottom surface 211 is provided with an L-shaped groove matched with the L-shaped blade 3, the L-shaped blade 3 is welded and fixed in the L-shaped groove, and the outer surface of the L-shaped blade 3 and the flat bottom surface 211 are in the same plane.

The L-shaped cutting edge 3 comprises a horizontal cutting edge 31 and a longitudinal cutting edge 32, the horizontal cutting edge 31 and the upper surface 213 are obliquely arranged downwards, the longitudinal cutting edge 32 and the oblique side surface 212 are obliquely arranged inwards, and the longitudinal cutting edge 32 and the central axis of the knife handle 1 form an included angle of a certain angle, wherein the included angle is preferably 15 +/-2 degrees.

The horizontal direction downward sloping of L type sword 3, longitudinal direction leanin make L type sword 3 cutting be the point cutting, and L type sword 3 stress concentrates in the machined surface, for the face cutting of like products in the market, can effectively prevent to punch or the edge explosion on fluting plank surface, and the cutting plane is also more smooth, and no burr to improve the result of use of plank. Meanwhile, the longitudinal knife edge 32 and the inclined side surface 212 are arranged in an inward inclined mode, so that the chips can be discharged more smoothly, secondary bonding of the chips can be reduced in an auxiliary mode, and the smoothness of the surface of the wood board is improved.

As a preferred embodiment, the upper surface 213 of the cutting portion 21 has concave chip discharge grooves 2131, which is beneficial for concentrated discharge of processed wood chips, and prevents secondary adhesion of wood chips and influence on smoothness of the wood board surface.

As a preferred embodiment, as shown in fig. 3, the number of the cutting portions 21 is four, four cutting portions 21 are symmetrically arranged in a staggered manner, and four cutting portions 21 are arranged at equal intervals in the needle direction.

The horizontal cutting edges 31 of the four L-shaped cutting edges 3 are positioned on the same horizontal plane, wherein two horizontal cutting edges 31 which are oppositely arranged are connected in a staggered way end to end, and the other two horizontal cutting edges 31 which are oppositely arranged are arranged on two sides of the horizontal cutting edges in a staggered way. The four horizontal cutting edges 31 together cut the bottom of the machined hole or groove. The longitudinal blades 32 are perpendicular to the horizontal blades 31, and the longitudinal blades 32 of the four L-shaped blades 3 are obliquely provided on the outer periphery of the cutter body 2 to cut the inner peripheral surface of a machined hole or groove.

In a preferred embodiment, the L-shaped blade 3 is made of PCD diamond cutter, and the shank 1 and the cutter body 2 are made of tungsten manganese alloy.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principles of the present invention should fall within the protection scope of the present invention.

Claims (7)

1. The utility model provides a point cutting woodworking tool, its characterized in that: comprises a knife handle (1) and a knife body (2) which is integrally formed with the knife handle (1);

the cutter body (2) comprises a plurality of cutting parts (21) which are arranged at equal intervals in the same clockwise direction, each cutting part (21) is provided with a flat bottom surface (211), an inclined side surface (212) and an upper surface (213), and an L-shaped cutting edge (3) is embedded in the periphery of the flat bottom surface (211);

l type cutting edge (3) include horizontal cutting edge (31) and vertical cutting edge (32), horizontal cutting edge (31) with upper surface (213) downward sloping setting, vertical cutting edge (32) with inclined side (212) inwards slope setting and with the center pin of handle of a knife (1) forms the contained angle of certain angle.

2. The point cutting woodworking tool of claim 1, wherein: the upper surface (213) is provided with a concave chip removing groove (2131).

3. The point cutting woodworking tool of claim 1, wherein: the included angle formed by the longitudinal cutting edge (32) and the central axis of the knife handle (1) is 15 +/-2 degrees.

4. The point cutting woodworking tool of claim 1, wherein: the number of the cutting parts (21) is four, and the four cutting parts (21) are symmetrically arranged in a staggered manner.

5. The point cutting woodworking tool of claim 1, wherein: the periphery of the flat bottom surface (211) is provided with an L-shaped groove matched with the L-shaped cutting edge (3).

6. The point cutting woodworking tool of any one of claims 1-5, wherein: the L-shaped cutting edge (3) is made of PCD diamond cutters.

7. The point cutting woodworking tool of claim 6, wherein: the knife handle (1) and the knife body (2) are made of tungsten-manganese alloy.

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