CN215358919U

CN215358919U - Woodworking tool for explosion-proof edges

Info

Publication number: CN215358919U
Application number: CN202023267138.8U
Authority: CN
Inventors: 李中权
Original assignee: Qiren Guangdong Precision Technology Co ltd
Current assignee: Qiren Guangdong Precision Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2021-12-31
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to the technical field of woodworking processing tools, and particularly discloses an explosion-proof edge woodworking processing tool, which comprises a tool shank and a tool body integrally formed with the tool shank; the cutter body comprises a first cutting part and a second cutting part which are symmetrically arranged in a staggered manner, the first cutting part and the second cutting part are respectively provided with a flat bottom surface, an outer peripheral surface, an inner peripheral surface and a top surface, the outer peripheral surface and the inner peripheral surface are in arc transition, arc-shaped blades are embedded at the intersection of the outer peripheral surface and the inner peripheral surface, the two arc-shaped blades are symmetrically arranged, and the arc-shaped blades incline to the top surface and form an included angle with a central shaft of the cutter handle at a certain angle; the flat plane with the crossing department of top surface inlays and is equipped with straight cutting edge, two straight cutting edge dislocation end to end, two straight cutting edge both ends distance is less than two the distance at arc cutting edge both ends can prevent effectively that the plank surface from exploding the limit, and the cutting plane is smooth, and the chip removal is smooth and easy, and the cutter has long service life.

Description

Woodworking tool for explosion-proof edges

Technical Field

The utility model relates to the technical field of woodworking processing cutters, in particular to an explosion-proof edge woodworking 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 burr easily appears, and the life of cutter is shorter.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems of the existing woodworking processing cutter, the utility model provides an explosion-proof woodworking processing cutter which can effectively prevent the surface of a wood board from edge explosion, has a smooth cutting surface and smooth chip removal and has long service life.

The technical scheme adopted by the utility model for solving the technical problems is as follows: an explosion-proof edge woodworking tool comprises a tool shank and a tool body integrally formed with the tool shank;

the cutter body comprises a first cutting part and a second cutting part which are symmetrically arranged in a staggered manner, the first cutting part and the second cutting part are respectively provided with a flat bottom surface, an outer peripheral surface, an inner peripheral surface and a top surface, the outer peripheral surface and the inner peripheral surface are in arc transition, arc-shaped blades are embedded at the intersection of the outer peripheral surface and the inner peripheral surface, the two arc-shaped blades are symmetrically arranged, and the arc-shaped blades incline to the top surface and form an included angle with a central shaft of the cutter handle at a certain angle;

the flat bottom surface and the crossing department of top surface inlay and are equipped with straight cutting edge, two straight cutting edge dislocation end to end, two straight cutting edge both ends distance is less than two the distance at arc cutting edge both ends.

Preferably, the included angle formed by the arc-shaped cutting edge and the central axis of the knife handle is 15 +/-2 degrees.

Furthermore, a first chip discharge groove is formed between the flat bottom surface and the inner circumferential surface.

Furthermore, one end of the outer peripheral surface, which is close to the arc-shaped cutting edge, is provided with a concave second chip removal groove.

Further, the top surfaces are provided with heat dissipation grooves.

Preferably, the distance between the two ends of the two straight edges is 34.5mm, and the distance between the two ends of the two arc-shaped edges is 35 mm.

Furthermore, the top ends of the two arc-shaped cutting edges and the two straight cutting edges are at the same height, and the top end height of the straight cutting edges is lower than that of the arc-shaped cutting edges.

Preferably, the arc-shaped blade and the straight blade are made of PCD diamond blades.

Preferably, the material of the cutter body is tungsten-manganese alloy.

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

through the first cutting portion and the second cutting portion that set up the dislocation symmetry at the cutter body, and first cutting portion and second cutting portion all have a flat tie, the outer peripheral face, inner peripheral surface and top surface, the convex transition of outer peripheral face and inner peripheral surface inlays and is equipped with the arc cutting edge in crossing department, two arc cutting edge symmetries set up and the arc cutting edge to the top surface slope and form the contained angle of certain angle with the center pin of handle of a knife, make the cutting of arc cutting edge be some cutting, arc cutting edge stress concentration is in the machined surface, can prevent effectively that the edge burst and the chip removal on punching or fluting plank surface are smooth and easy, the cutting plane is also more smooth, no burr.

The crossing department of flat plane and top surface inlays establishes straight cutting edge, two straight cutting edges dislocation end to end, carry out rough cut to the bottom in processing hole or groove, two arc cutting edge symmetries set up in the both sides of straight cutting edge, carry out the truing to the inboard global of processing hole or groove, and two straight cutting edge both ends distance is less than the distance at two arc cutting edge both ends, and the top height of straight cutting edge is less than the top height of arc cutting edge, make straight cutting edge and arc cutting edge each other its duties, process the machined surface of difference simultaneously respectively, the life of cutter not only is prolonged, and be favorable to improving machining efficiency.

A first chip removal groove is formed between the flat bottom surface and the inner peripheral surface, an inwards concave second chip removal groove is formed at one end, close to the arc-shaped cutting edge, of the outer peripheral surface, concentrated discharge of processed sawdust is guaranteed, meanwhile, the heat dissipation groove is formed in the top surface, high-temperature secondary adhesion of organic binders in the sawdust can be prevented, and surface smoothness of the cutting surface is further guaranteed.

Drawings

FIG. 1 is a front view of an explosion-proof edge woodworking tool of an embodiment of the application;

FIG. 2 is a first schematic structural diagram of an explosion-proof woodworking tool according to an embodiment of the present disclosure;

FIG. 3 is a schematic structural diagram of an explosion-proof woodworking tool of the embodiment of the present application;

FIG. 4 is a top view of an explosion-proof edge woodworking tool in accordance with an embodiment of the present application;

fig. 5 is a longitudinal sectional view of an arc-shaped blade of the blast-resistant woodworking tool in accordance with the embodiment of the present application.

In the figure: 1. a knife handle; 2. a cutter body; 21. a first cutting portion; 211. a flat bottom surface; 212. an outer peripheral surface; 213. an inner peripheral surface; 214. a top surface; 215. an arc-shaped blade; 2151. a blade face; 2152. positioning the tip; 2153. an inclined plane; 216. a straight blade; 22. a second cutting portion; 221. a flat bottom surface; 222. an outer peripheral surface; 223. an inner peripheral surface; 224. a top surface; 225. an arc-shaped blade; 226. a straight blade; 31. a first chip discharge groove; 32. a first chip discharge groove; 41. a heat dissipation groove; 42. a heat dissipation groove; 51. a second chip groove; 52. a second chip groove.

Detailed Description

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

It is to be noted that, in the present invention, relational terms such as "first", "second", and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.

As shown in fig. 1-5, the woodworking tool with the explosion-proof edge comprises a tool shank 1 and a tool body 2, wherein the tool shank 1 and the tool body 2 are integrally formed. 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.

As a preferred embodiment, the cutter body 2 comprises a first cutting portion 21 and a second cutting portion 22 which are symmetrically arranged in a staggered manner.

The first cutting part 21 is provided with a flat bottom surface 211, an outer peripheral surface 212, an inner peripheral surface 213 and a top surface 214, the outer peripheral surface 212 and the inner peripheral surface 213 are in circular arc transition and are embedded with arc-shaped blades 215 at the intersection, the outer side of the arc-shaped blades 215 is provided with circular arc-shaped blade surfaces 2151, the top part is provided with positioning tips 2152, the surfaces are provided with inclined planes 2153, and the blade surfaces 2151 are in circular arc transition connection with the inner peripheral surface 213.

The first cutting part 22 has a flat bottom surface 221, an outer peripheral surface 222, an inner peripheral surface 223 and a top surface 224, the outer peripheral surface 222 and the inner peripheral surface 223 are in circular arc transition and are embedded with an arc-shaped cutting edge 225 at the intersection, the outer side of the arc-shaped cutting edge 225 is provided with a circular arc-shaped cutting edge surface 2251, the top is provided with a positioning tip 2252, the surface is provided with an inclined plane 2253, and the cutting edge surface 2251 is in circular arc transition connection with the inner peripheral surface 223.

The curved edge 215 is inclined towards the top surface 214 and forms an angle, preferably 15 + -2 degrees, with the central axis of the handle 1, and the curved edge 225 is inclined towards the top surface 224 and forms an angle, preferably 15 + -2 degrees, with the central axis of the handle 1.

Arc cutting edge 215 and arc cutting edge 225 slope to top surface 214 and top surface 224 respectively to form the contained angle of certain angle with the center pin of handle of a knife 1, make the cutting of cutting edge be the point cutting, relatively conventional face cutting, arc cutting edge 215 and arc cutting edge 225 stress concentration in the machined surface, can effectively prevent to punch or the board surface of fluting explode the limit and the chip removal is smooth and easy, the cutting plane is also more smooth, no burr.

In a preferred embodiment, a straight blade 216 is embedded at the intersection of the flat bottom surface 211 and the top surface 214, a straight blade 226 is embedded at the intersection of the flat bottom surface 221 and the top surface 224, the cross sections of the straight blade 216 and the straight blade 226 are rectangular, the straight blade 216 and the straight blade 226 are staggered and connected end to perform rough cutting on the bottom of a machined hole or groove, the arc-shaped blades 215 and the arc-shaped blades 225 are symmetrically arranged on two sides of the straight blade 216 and the straight blade 226 to perform fine trimming on the inner peripheral surface of the machined hole or groove.

The distance between the two ends of the straight blade 216 and the straight blade 226 is 34.5mm, which is less than the distance between the two ends of the arc-shaped blade 215 and the arc-shaped blade 225 is 35mm, the top ends of the arc-shaped blade 215 and the arc-shaped blade 225 and the top ends of the straight blade 216 and the straight blade 226 are all at the same height, and the top ends of the straight blade 216 and the straight blade 226 are lower than the height of the top ends of the arc-shaped blade 215 and the arc-shaped blade 225. The arc-shaped blade 215 and the arc-shaped blade 225, the straight blade 216 and the straight blade 226 respectively perform their own functions and process different processing surfaces simultaneously, so that the service life of the cutter is prolonged, and the processing efficiency is improved.

Meanwhile, the positioning tips 2152 and 2252 are higher than the top ends of the

straight blades

216 and 226, so that positioning is performed during machining, and compared with the existing tool, another tool for positioning is omitted, and cost is saved.

In a preferred embodiment, the first chip discharge grooves 31 are formed between the flat bottom surface 211 and the inner circumferential surface 213, and the first chip discharge grooves 32 are formed between the flat bottom surface 221 and the inner circumferential surface 223.

One end of the outer peripheral surface 212, which is close to the arc-shaped cutting edge 215, is provided with a concave second chip removing groove 51, and the second chip removing groove 51 is in smooth transition with the inclined plane 2153; the outer peripheral surface 222 has a concave second flute 52 at an end thereof adjacent to the arc blade 225, and the second flute 52 smoothly transitions with the inclined plane 2253.

The first

chip discharge grooves

31 and 32 and the second

chip discharge grooves

51 and 52 work together to ensure the concentrated discharge of the processed wood chips.

In a preferred embodiment, the top surface 214 has heat dissipation grooves 41 and the top surface 224 has heat dissipation grooves 42. The composite wood board is usually bonded by organic adhesive, in the processing process, the high-speed rotation of the cutter generates heat by friction, if the heat is not dissipated in time, the organic adhesive in the wood chips is secondarily bonded at high temperature, the heat dissipation groove 41 and the heat dissipation groove 42 provide a heat dissipation space, the secondary bonding of the organic adhesive in the wood chips can be effectively prevented, and the surface smoothness of the cutting surface is further ensured.

In a preferred embodiment, the arc-shaped blade 215, the arc-shaped blade 225, the straight blade 216 and the straight blade 226 are PCD diamond blades, and the tool body 2 is made of tungsten manganese alloy.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention should fall within the protection scope of the present invention.

Claims

1. The utility model provides an explosion-proof limit woodworking processing cutter which 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 first cutting part (21) and a second cutting part (22) which are symmetrically arranged in a staggered mode, the first cutting part (21) and the second cutting part (22) are respectively provided with a flat bottom surface (211, 221), an outer peripheral surface (212, 222), an inner peripheral surface (213, 223) and a top surface (214, 224), the outer peripheral surface (212, 222) and the inner peripheral surface (213, 223) are in arc transition, arc-shaped cutting edges (215, 225) are embedded in the intersection position, the two arc-shaped cutting edges (215, 225) are symmetrically arranged, the arc-shaped cutting edges (215, 225) incline to the top surface (214, 224) and form an included angle with the central axis of the cutter handle (1) at a certain angle;

straight cutting edges (216, 226) are embedded at the intersection of the flat bottom surfaces (211, 221) and the top surfaces (214, 224), the two straight cutting edges (216, 226) are staggered and connected end to end, and the distance between the two ends of the two straight cutting edges (216, 226) is smaller than that between the two ends of the two arc-shaped cutting edges (215, 225).

2. The explosion-proof limit woodworking processing cutter of claim 1, wherein: the included angle formed by the arc-shaped cutting edges (215, 225) and the central axis of the knife handle (1) is 15 +/-2 degrees.

3. The explosion-proof limit woodworking processing cutter of claim 1, wherein: a first chip discharge groove (31,32) is formed between the flat bottom surface (211, 221) and the inner circumferential surface (213, 223).

4. The explosion-proof limit woodworking processing cutter of claim 1, wherein: one end of the outer peripheral surface (212, 222) close to the arc-shaped cutting edge (215, 225) is provided with a concave second chip removing groove (51, 52).

5. The explosion-proof limit woodworking processing cutter of claim 1, wherein: the top surfaces (214, 224) each have a heat dissipation groove (41, 42).

6. The explosion-proof limit woodworking processing cutter of claim 1, wherein: the distance between the two ends of the two straight cutting edges (216, 226) is 34.5mm, and the distance between the two ends of the two arc-shaped cutting edges (215, 225) is 35 mm.

7. The explosion-proof limit woodworking processing cutter of claim 1, wherein: the top ends of the two arc-shaped blades (215, 225) and the two straight blades (216, 226) are at the same height, and the height of the top end of each straight blade (216, 226) is lower than that of the top end of each arc-shaped blade (215, 225).

8. An explosion-proof edge woodworking tool according to any one of claims 1-7, wherein: the arc-shaped cutting edges (215, 225) and the straight cutting edges (216, 226) are made of PCD diamond cutters.

9. The explosion-proof limit woodworking processing tool of claim 8, wherein: the cutter body (2) is made of tungsten-manganese alloy.