CN224195971U - A type of TCT straight knife - Google Patents

Abstract

The utility model discloses a TCT straight blade in the field of straight blades, which comprises a blade handle and a cutting head integrally formed with the blade handle, wherein the surface of the cutting head extends outwards to form a bevel part, the surface of the cutting head extends outwards to form a chip removing part, the surface of the chip removing part is recessed to the inside of the chip removing part to form a chip removing groove, the chip removing groove extends outwards in the inclined direction of the chip removing part, one end of the cutting head extends outwards to form a straight blade rod, the surface of the straight blade rod extends outwards to form an inclined blade edge part, and a chip dividing groove is formed between the blade edge parts.

Description

TCT straight knife

Technical Field

The utility model relates to the field of straight cutters, in particular to a TCT straight cutter.

Background

TCT straight cutters are a special cutter whose edge portions are mainly composed of cemented carbide (also called tungsten steel) materials. The cutter has important importance in the cutting industry due to the characteristics of wear resistance, durability, high cutting precision, efficiency improvement and the like, and is particularly widely applied to the fields of furniture, woodworking, construction and the like. The TCT straight knife has the characteristic of multiple functions of one knife, and can be used for various processing tasks such as grooving, cutting, trimming, instantaneous drilling and the like. The numerical control processing device is particularly suitable for numerical control processing equipment such as a computer engraving machine and a CNC processing center, and can remarkably improve the processing efficiency and the processing precision.

CN203636929U, a TCT straight knife, comprising a knife handle and an alloy rod knife body, wherein the rear end of the alloy rod knife body is welded with the knife handle, two edges of the front part of the alloy rod knife body are respectively provided with cutting edges, and the cutting edges on the two edges are symmetrically arranged along the axis of the alloy rod knife body. Has the advantages of high production efficiency, stable cutter body quality, high cutting precision, wide application range and convenient operation.

The TCT straight blade with the structure has the following defects that the surface of the alloy rod blade body is not provided with a chip groove, chips generated during cutting of the alloy rod blade body are difficult to discharge, the chips and the chips are also cut when the alloy rod blade body is cut, the chips cannot be discharged in real time due to large cutting quantity, the accumulated chips can cause local temperature rise and repeated chips, once the chips are blocked, the operation of cutting cannot be continued, the machining must be suspended temporarily, the pin cutting tool needs to be replaced again, the cutting process is not smooth due to the residual chips, the quality of the machined surface of the straight blade is reduced due to repeated cutting, the residual chips are easy to adhere to the inner wall of a machined material, in addition, the chips can be accumulated on the side surfaces of the tool bit and the tool bit, the tool bit cannot advance, the depth of cutting into the workpiece material is further caused, the cutting resistance and the cutting force are increased, and finally the machining efficiency is obviously not in the best, the machining cost is increased, and the cutting capability of the TCT straight blade is deteriorated.

Disclosure of utility model

In order to overcome the defects of the prior art, the utility model provides the TCT straight knife, which can effectively solve the technical problems of poor cutting capability, low cutting efficiency and difficult chip removal of the traditional TCT straight knife.

The technical scheme includes that the TCT straight cutter comprises a cutter handle and a cutting head integrally formed with the cutter handle, wherein the surface of the cutting head extends outwards to form a bevel portion, the surface of the cutting head extends outwards to form a chip removing portion, the surface of the chip removing portion is recessed inwards to form a chip removing groove, the chip removing groove extends along the inclined direction of the chip removing portion, one end of the cutting head extends outwards to form a straight edge rod, the surface of the straight edge rod extends outwards to form an inclined edge portion, and chip dividing grooves are formed between the edge portions.

Further, the surface of the tapered portion is provided with a curved surface piece that extends in the oblique direction of the tapered portion.

Further, the inner wall of the chip removal portion is provided with a chamfer, and the chamfer extends along the inner wall of the chip removal portion.

Further, the length of the chamfer is smaller than the length of the chip removing portion.

Further, the inner wall of the chip dividing groove is provided with a cutting piece, and the cutting piece extends along the inner wall of the chip dividing groove.

Further, the surfaces of the chamfering part, the chip removing part and the knife edge part are all provided with coatings.

Further, the coating is one of TiNC coating, tiN coating, tiSiNC coating, diamond-like coating, aluminum oxide coating, nichrome coating, and tungsten carbide coating.

Further, the shank and the cutting head are both composed of high-speed steel.

Compared with the prior art, the TCT straight cutter has the beneficial effects that the cutting capability and the chip removal effect of the cutter are enhanced by the TCT straight cutter, the inclined cutter edge part formed by extending the surface of the straight blade rod and the chip separation groove between the cutter edge parts, so that the cutting process is smoother, the chip removal groove extends along the inclined direction of the chip removal part, chips generated in the cutting process can be rapidly discharged, the cutter abrasion and the reduction of the quality of a processing surface caused by chip accumulation are prevented, the inclined cutting part formed by extending the surface of the cutting head is capable of cutting into a workpiece material more effectively, the cutting resistance and the cutting force are reduced, the cutting efficiency is improved, and the smoother processing surface is formed.

Drawings

FIG. 1 is a perspective view of a TCT straight blade according to the present utility model;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a side view of a TCT straight blade according to the present utility model.

Reference numerals in the drawings:

1-knife handle, 2-cutting head, 3-bevel part, 4-curved surface piece, 5-chip removing part, 6-chip removing groove, 7-bevel piece, 8-straight blade rod, 9-knife edge part, 10-chip dividing groove and 11-cutting piece.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-3, a TCT straight knife comprises a knife handle 1 and a cutting head 2 integrally formed with the knife handle 1, wherein the surface of the cutting head 2 extends outwards to form a bevel portion 3, the surface of the cutting head 2 extends outwards to form a chip removing portion 5, the surface of the chip removing portion 5 is recessed inwards to form a chip removing groove 6, the chip removing groove 6 extends along the inclined direction of the chip removing portion 5, one end of the cutting head 2 extends outwards to form a straight edge rod 8, the surface of the straight edge rod 8 extends outwards to form an inclined knife edge portion 9, a chip dividing groove 10 is formed between the knife edge portions 9, the opening of the chip dividing groove 10 is large, most of chips generated by cutting are discharged from the chip dividing groove 10, the chip dividing groove 10 can also play a role of radiating the chips, the heat generated during cutting can be discharged, the accumulation of the heat and the chips can be reduced, the chips can be prevented from accumulating to the cutting head 2, the chips can not advance, the chips can not be discharged deeply into a workpiece material due to the fact that the chips cannot be cut into the workpiece, and the chips can be discharged largely by setting up the chip removing groove 6.

The surface of the chamfering part 3 is provided with a curved sheet 4, the curved sheet 4 extends along the inclined direction of the chamfering part 3, the inner wall of the chip removing part 5 is provided with a chamfering sheet 7, the chamfering sheet 7 extends along the inner wall of the chip removing part 5, the length of the chamfering sheet 7 is smaller than that of the chip removing part 5, the stress condition in the cutting process can be further optimized, the processing precision and the surface quality are improved, the inner wall of the chip dividing groove 10 is provided with a cutting sheet 11, the cutting sheet 11 extends along the inner wall of the chip dividing groove 10, the surfaces of the chamfering part 3, the chip removing part 5 and the knife edge part 9 are all provided with a coating, the coating is TiNC coating, the hardness, wear resistance, corrosion resistance and high-temperature stability of the cutter can be remarkably improved, the service life of the straight cutter is further prolonged, the cutter handle 1 and the cutting head 2 are both made of high-speed steel, the high strength, high hardness and good cutting performance of the straight cutter are ensured, the cutter is suitable for various cutting processing tasks with high difficulty and high efficiency, the curved surface piece 4, the inclined cutting piece 7 and the cutting piece 11 are all of a sheet-shaped structure, the curved surface piece 4, the inclined cutting piece 7 and the cutting piece 11 are made of hard alloy materials, and the cutter has a series of excellent performances of high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance and the like, and basically keeps unchanged even at the temperature of 500 ℃, and has high hardness at the temperature of 1000 ℃.

According to the TCT straight cutter, the cutting capability and the chip removal effect of the cutter are enhanced by the inclined cutter edge part 9 formed by extending the surface of the straight blade rod 8 and the chip separation groove 10 between the cutter edge parts 9, so that the cutting process is smoother, the chip removal groove 6 extends along the inclined direction of the chip removal part 5, chips generated in the cutting process can be rapidly discharged, the cutter abrasion and the reduction of the quality of the processed surface caused by chip accumulation are prevented, the inclined cutting part 3 formed by extending the surface of the cutting head 2 outwards can cut into a workpiece material more effectively, the cutting resistance and the cutting force are reduced, the cutting efficiency is improved, the smoother processed surface is facilitated to be formed, the smooth discharge of the cutting chips can be effectively guided, the smooth effect of chip removal is improved, and the service life is reduced due to the overheat of the temperature in the cutting process can be prevented.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (8)

1. A TCT straight cutter comprises a cutter handle and a cutting head integrally formed with the cutter handle, and is characterized in that the surface of the cutting head extends outwards to form a bevel portion, the surface of the cutting head extends outwards to form a chip removing portion, the surface of the chip removing portion is recessed inwards to form a chip removing groove, the chip removing groove extends along the inclined direction of the chip removing portion, one end of the cutting head extends outwards to form a straight blade rod, the surface of the straight blade rod extends outwards to form an inclined blade edge portion, and chip dividing grooves are formed between the blade edge portions.

2. The TCT straight blade according to claim 1, wherein the surface of the beveled portion is provided with a curved surface piece extending in an oblique direction of the beveled portion.

3. The TCT straight blade according to claim 1, wherein the inner wall of the chip portion is provided with beveled chips extending along the inner wall of the chip portion.

4. A TCT straight blade as set forth in claim 3, wherein the length of the chamfer is less than the length of the chip removing portion.

5. A TCT straight blade as in claim 1, wherein the inner wall of the chip breaker is provided with a cutting tab extending along the inner wall of the chip breaker.

6. A TCT straight blade according to any of claims 1-5, characterized in that the surfaces of the chamfer, chip removal portion and blade edge portion are provided with a coating.

7. A TCT straight blade as in claim 6, wherein the coating is one of TiNC coating, tiN coating, tiSiNC coating, diamond-like coating, aluminum oxide coating, nichrome coating, and tungsten carbide coating.

8. A TCT straight blade as defined in claim 1, wherein the shank and cutting head are each constructed of high speed steel material.