CN209754101U

CN209754101U - Hexagonal wood drill

Info

Publication number: CN209754101U
Application number: CN201920359817.6U
Authority: CN
Inventors: 王丹杰
Original assignee: Danyang Youjie Tools Co Ltd
Current assignee: Danyang Youjie Tools Co Ltd
Priority date: 2019-03-21
Filing date: 2019-03-21
Publication date: 2019-12-10
Anticipated expiration: 2029-03-21

Abstract

A hexagonal wood drill comprises a tool shank and a tool bit, wherein a spiral row cutting groove is formed in the tool bit, the tail end of the tool bit is connected with the tool shank, the top end of the tool bit is a tool nose, the tool nose comprises two cutting faces which are the same in shape and symmetrically connected, the cutting faces comprise a main cutting face and an auxiliary cutting face, the main cutting face comprises a main cutting edge, an auxiliary cutting edge and a bottom edge, the auxiliary cutting face and the main cutting face share the same auxiliary cutting edge, in addition, the auxiliary cutting face further comprises a rear groove edge and an auxiliary bottom edge, the lower end of the cutting face is connected with a spiral peripheral edge, a spiral row cutting groove is formed between every two adjacent peripheral edges, vertical grinding faces are arranged at the crossed positions of the two adjacent cutting faces at the top end of the row cutting groove, a flow guide surface is arranged at the tail end of the row cutting groove, and each spiral peripheral edge comprises a blade back and a blade, and a flow guide plane is arranged between the tail end of the blade edge extending downwards along the central shaft of the knife handle and the blade back.

Description

hexagonal wood drill

Technical Field

The utility model belongs to the technical field of the instrument, especially, relate to a hexagonal wood bores.

Background

twist drill is the cutter of processing the hole from the entity material, in order to improve twist drill's work efficiency among the prior art, generally adopt and set up two axisymmetric blades at the drill bit front end, constitute big drill edge, and such drill bit is in the in-service use in-process, because the asymmetric design of double blade, make the drilling rod atress uneven, machining stability and machining precision are not ideal enough, and at present drill bit in the drilling process, because stress concentration is on the drill bit surface, when taking place to collapse the sword on the drill bit surface, can lead to tool bit department to warp, cause the influence to drilling quality.

Therefore, the above problems are problems that should be considered and solved in the structural design and use of the drill bit.

SUMMERY OF THE UTILITY MODEL

to the problem that exists, the utility model provides an overcome the defect among the prior art, provide a rational in infrastructure, intensity is high, stability can be strong, work efficiency is high hexagonal wood bores.

the technical solution of the utility model is that: a hexagonal wood drill comprises a tool shank and a tool bit, wherein a spiral row cutting groove is formed in the tool bit, the tail end of the tool bit is connected with the tool shank, the top end of the tool bit is a tool nose which comprises two cutting surfaces which are symmetrically connected along the central axis direction of the tool shank, each cutting surface comprises a main cutting surface and a grinding surface, each main cutting surface comprises a main cutting edge, a cross edge, an auxiliary cutting edge and a bottom edge, the main cutting surface is divided into two platform surfaces which are parallel to each other and have a height difference surface, the rear surface is connected with the grinding surface and shares the auxiliary cutting edges, each cutting surface extension body is a spiral peripheral edge, a spiral row cutting groove is formed between every two adjacent spiral peripheral edges, a flow guide slope surface is arranged at the tail end of the spiral row cutting groove, each spiral peripheral edge comprises an edge back and an edge strip, and a flow guide plane is arranged between the tail end, extending downwards along the central axis of the tool shank, and the edge back, the knife handle is connected with the knife head in a detachable connection mode.

The utility model discloses a further improvement lies in: the chisel edge of one cutting surface is a straight line, the chisel edge of the other cutting surface is a curve, and the intersecting part of the two chisel edges forms a tool tip, so that the tool tip in the shape can play a role in increasing the contact area and enabling the whole tool bit to be firm.

The utility model discloses a further improvement lies in: the water conservancy diversion plane includes left side limit and lower limb, left side limit and lower limb are crossing perpendicularly, the lower limb is connected the afterbody of margin, the planar setting of water conservancy diversion can cooperate the heliciform chip groove to carry out the chip removal and flow in the effect of outflow coolant liquid.

the utility model discloses a further improvement lies in that two the crossing angle of main cutting edge is 160 ~ 170 degrees, sets up this angle and makes the area of contact between tool bit and the contact surface increase and improve the stability of whole tool bit.

The utility model discloses a further improvement lies in: the main cutting edge and the auxiliary cutting edge are both folding lines which are two sections, because the main cutting surface is provided with two layers of platforms, the main cutting edge and the auxiliary cutting edge are caused to be folding lines, the force generated in the machining process can not be concentrated on one point due to the shape arrangement, and the cutter head is more stable and firm.

The utility model discloses a further improvement lies in: the spiral peripheral edge is arranged along the edge of the spiral chip groove and is provided with two spiral peripheral edges which are matched with the main cutting edge to carry out processing operation.

The utility model discloses a further improvement lies in: the utility model discloses a simple structure, the domatic water conservancy diversion is domatic, including water conservancy diversion, buffering cylinder area, water conservancy diversion domatic lower limb, the lower limb of water conservancy diversion is domatic with set up one section buffering cylinder area between the handle of a knife, the length in buffering cylinder area with the length of water conservancy diversion domatic lower limb to the knife tip is the same, buffering cylinder area can be so that sweeps and waste liquid flow out on the wall in buffering cylinder area, prevents that.

The utility model discloses a further improvement lies in: the diameter of the knife handle is the same as that of the knife head.

The utility model discloses a further improvement lies in: the utility model discloses a drilling tool, including handle of a knife, the handle of a knife is provided with the cutter groove, and the cutter is provided with the cutter groove and is provided with the cutter groove.

The utility model discloses a further improvement lies in: the tool bit is characterized in that an anti-corrosion layer is covered on the outer side of the tool bit and is a three-layer water-based acrylate heavy-duty anti-corrosion coating, a wear-resistant layer is arranged on the outer side of the anti-corrosion layer, and the anti-corrosion layer and the wear-resistant layer are arranged to prolong the service life of the tool bit.

The utility model has the advantages that:

1. The hexagonal wood drill is simple in structure and reasonable in design, and the two main cutting surfaces are matched with the peripheral edge, so that the drill can cut stably in the operation process, and the feeding speed is improved;

2. The cutter handle is arranged to be hexagonal, so that a stabilizing effect can be achieved, and the situation that the drill bit moves in the high-speed operation process to cause low working efficiency is prevented;

3. The tail of the spiral cutting groove is provided with the flow guide plane, so that chips can be removed more smoothly, the high temperature generated by the cutting edge in the machining process can be rapidly reduced, the machining speed is increased, the durability of the drill bit is also improved, the operation is safer, and the production efficiency is greatly improved.

Drawings

Fig. 1 is a schematic view of the overall side structure of the present invention;

FIG. 2 is a top view of the tip of the present invention;

Fig. 3 is an enlarged side view of the cutting tip of the present invention.

Wherein: 1-knife handle, 2-knife head, 3-knife tip, 4-cutting face, 5-main cutting face, 6-dressing face, 7-main cutting edge, 8-cross edge, 9-auxiliary cutting edge, 10-bottom edge, 11-spiral row cutting groove, 12-platform face, 13-spiral peripheral edge, 14-flow guide slope face, 15-buffer cylindrical zone, 16-knife back 16, 17-knife edge zone, 18-flow guide plane, 19-left side edge, 20-lower edge, 21-tool withdrawal groove and 22-height difference face.

Detailed Description

In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.

As shown in the figure: the technical solution of the embodiment is as follows: a hexagonal wood drill comprises a tool shank 1 and a tool bit 2, wherein a spiral row cutting groove 11 is formed in the tool bit 2, a layer of anti-corrosion layer is covered on the outer side of the tool bit 2 and is provided with three layers of water-based acrylate heavy anti-corrosion coatings, a layer of wear-resistant layer is arranged on the outer side of the anti-corrosion layer and is provided with an anti-corrosion layer and an anti-wear layer to prolong the service life of the tool bit 2, the tail end of the tool bit 2 is connected with the tool shank 1, the top end of the tool bit 2 is provided with a tool nose 3, the tool nose 3 comprises two cutting surfaces 4 which are symmetrically connected along the central axis direction of the tool shank 1, each cutting surface 4 comprises a main cutting surface 5 and a grinding surface 6, each main cutting surface 5 comprises a main cutting edge 7, a cross edge 8, an auxiliary cutting edge 9 and a bottom edge 10, the cross edge 8 of one cutting surface 4 is a straight line, the cross edge 8, the tool nose 3 with the shape can play a role in increasing the contact area and enabling the whole tool bit 2 to be firm, the two main cutting surfaces 5 are divided into two platform surfaces 12, the two platform surfaces 12 are parallel and have a height difference surface 22, the main cutting surface 7 and the secondary cutting surface 9 are both folding lines with two sections, because the main cutting surface 5 is provided with two layers of platforms, the main cutting surface 7 and the secondary cutting surface 9 are folding lines, the force in machining cannot be concentrated on one point, the tool bit 2 is more stable and firm, the grinding surface 6 is connected with the main cutting surface 5 and shares the secondary cutting surface 9, the extension body of the cutting surface 4 is a spiral peripheral edge 13, two adjacent spiral peripheral edges 13 form a spiral row cutting groove 11, the tail end of the spiral row cutting groove 11 is provided with a flow guide slope surface 14, the lower edge of the flow guide slope surface 14 and a section of buffer cylindrical belt 15 is arranged between the cutter handle 1, the length of the buffer cylindrical belt 15 is equal to the length from the lower edge of the flow guide slope surface 14 to the cutter point 3, the buffer cylindrical belt 15 can enable waste chips and waste liquid to flow out along the wall of the buffer cylindrical belt 15, and the waste chips and the waste liquid are prevented from being accumulated above the cutter handle 1. Spiral peripheral edge 13 along spiral chip groove 11 edge sets up and has two, spiral peripheral edge 13 cooperation main cutting edge 7 carries out the processing operation, spiral peripheral edge 13 includes back of the blade 16 and margin 17, margin 17 is followed the terminal of the down extension of center pin of handle of a knife 1 with be equipped with water conservancy diversion plane 18 between the back of the blade 16, water conservancy diversion plane 18 includes left side 19 and lower limb 20, left side 19 and lower limb 20 intersect perpendicularly, lower limb 20 connects the afterbody of margin 17, the effect that spiral chip groove 11 carries out the chip removal and flows out the coolant liquid can be cooperated in the setting of water conservancy diversion plane 18, handle of a knife 1 with handle of a knife 2 is connected through detachable connected mode, the diameter of 1 with the diameter of handle of a knife 2 is the same, handle of a knife 1 bottom is equilateral hexagon handle of a knife just handle 1 includes six the same and the plane that is connected, the utility model discloses a drill bit, including handle of a knife 1, set up handle of a knife 21, handle of a knife 1 sets up to equilateral hexagon for the cutter is installed and is worked in the machining tool more stable, sets up round tool withdrawal 21 and also can make the drill bit is more stable installs inside the machining tool.

Utility model's beneficial effect:

It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a hexagonal wood drill, includes handle of a knife and tool bit, seted up the heliciform on the tool bit and arranged the cutting groove, its characterized in that: the tail end of the cutter head is connected with the cutter handle, the top end of the cutter head is a cutter point, the cutter point comprises two cutting surfaces and is symmetrically connected along the central axis direction of the cutter handle, the cutting surface comprises a main cutting surface and a grinding surface, the main cutting surface comprises a main cutting edge, a chisel edge, an auxiliary cutting edge and a bottom edge, the main cutting surface is divided into two platform surfaces which are parallel and have a height difference surface, the height difference surface is connected with the coping surface and shares the secondary cutting edge, the cutting surface extension body is a spiral peripheral edge, a spiral row cutting groove is formed between two adjacent peripheral edges, the tail end of the spiral row cutting groove is provided with a flow guide slope surface, the spiral peripheral edge comprises an edge back and an edge band, the knife handle is detachably connected with the knife head in a detachable connection mode.

2. A hexagonal wood drill according to claim 1, wherein: the chisel edge of one cutting face is straight and the chisel edge of the other cutting face is curved.

3. A hexagonal wood drill according to claim 1, wherein: the guide plane comprises a left side edge and a lower edge, the left side edge and the lower edge are vertically intersected, and the lower edge is connected with the tail portion of the blade zone.

4. the hexagonal wood drill according to claim 1, wherein the angle at which the two main cutting edges intersect is 160 ~ 170 degrees.

5. A hexagonal wood drill according to claim 1, wherein: the main cutting edge and the auxiliary cutting edge are both broken lines in two sections.

6. A hexagonal wood drill according to claim 1, wherein: the spiral peripheral edges are arranged along the edges of the spiral row-cutting grooves and are provided with two spiral peripheral edges.

7. A hexagonal wood drill according to claim 1, wherein: a section of buffering cylindrical belt is arranged between the lower edge of the flow guide slope surface and the tool handle, and the length of the buffering cylindrical belt is the same as the length from the lower edge of the flow guide slope surface to the tool tip.

8. A hex drill according to claim 1, wherein: the diameter of the knife handle is the same as that of the knife head.

9. A hexagonal wood drill according to claim 8, wherein: the utility model discloses a handle of a knife, including handle of a knife, handle of a knife is equipped with the round groove of withdrawing, handle of a knife bottom is equilateral hexagon just the handle of a knife includes six the same planes that just are connected, be equipped with the round groove of withdrawing on the handle of a knife.

10. A hexagonal wood drill according to claim 1, wherein: the tool bit is characterized in that an anti-corrosion layer covers the outer side of the tool bit, the anti-corrosion layer is a three-layer water-based acrylate heavy-duty anti-corrosion coating, and a wear-resistant layer is arranged on the outer side of the anti-corrosion layer.