CN113560675A

CN113560675A - Cutting blade and cutting tool

Info

Publication number: CN113560675A
Application number: CN202110758781.0A
Authority: CN
Inventors: 张�杰; 黄强
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-07-05
Filing date: 2021-07-05
Publication date: 2021-10-29

Abstract

The invention relates to the field of metal cutting tools, in particular to a cutting blade and a cutting tool, which comprise a tool holder, a tool body and blades, wherein the tool body is of a flat structure, and the blades are arranged on two sides of the tool body; the knife handle comprises a sliding block, an elastic piece, a rubber sleeve and a fixed shaft; one end of the fixed shaft is fixedly connected with the middle part of one end of the cutter body, and the other end of the fixed shaft is sleeved with a rubber sleeve; the outer wall of the rubber sleeve is provided with a sliding chute; a T-shaped block is connected inside the sliding chute in a sliding manner; the T-shaped blocks are fixedly connected with the corresponding sliding blocks; the sliding block close to the cutter body is fixedly connected with the rubber sleeve; two adjacent sliding blocks are fixedly connected through an elastic piece; according to the invention, the elastic part is pressed by the fingers to drive the two adjacent sliding blocks to approach each other, so that the sliding blocks completely wrap the outer contour surface which is pressed by the fingers and extends into the space between the two adjacent sliding blocks, thereby achieving the effect that the cutter is not easy to fall off when being held by hands, and further improving the safety in the production working process.

Description

Cutting blade and cutting tool

Technical Field

The present invention relates to the field of metal cutting tools, and more particularly, to a cutting insert and a cutting tool.

Background

Cutting tools are tools commonly used in machining operations; most knives are machine, but also hand; in mechanical production, the cutter of machine can produce the condition of cutting unclean, the burr when carrying out cutting work, consequently, need carry out burring processing, manual burring does not need technical treatment for the machine burring, practice thrift the cost and environmental protection, the burring cutting tool of hand usefulness mainly includes handle of a knife and cutter body two parts, the workman can sweat under long-time high strength work, the hand that perspires can produce and hold not tightly the handle of a knife and drop or even injure the condition in hand, can influence workman's normal work and personal safety from this, different workman's finger thickness is different, so need to go to hold cutting tool as far as, thereby make things convenient for the workman to carry out work.

Chinese patent with application number CN210359620U discloses a plane scraper, which comprises a cutter head, a fixed cutter bar, a lengthened cutter bar and a cutter handle, wherein: the cutter head is connected with the first end of the fixed cutter bar in an embedded mode and locked through a screw; the second end of the fixed cutter bar is detachably connected with the first end of the lengthened cutter bar; the second end of the lengthened cutter bar is detachably connected with the cutter handle, and the technical scheme solves the technical problem that in the prior art, in order to meet the process requirements of rough scraping and fine scraping, scrapers need to be prepared, the number of the scrapers is large, the scrapers are different in length, and the carrying is inconvenient; however, in the technical scheme, the fixed cutter bar is not provided with the groove, and the situation that the safety of a worker is affected by the falling off of the cutting tool possibly caused after the palm of the worker sweats is also not considered due to the fact that the thickness of different fingers of the worker is different, so that the invention has limitation.

In view of the above, in order to overcome the above technical problems, the present invention provides a cutting insert and a cutting tool, which solve the above technical problems.

Disclosure of Invention

In order to make up for the defects of the prior art, the invention provides the cutting blade and the cutting tool.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a cutting blade and a cutting tool, which comprise a tool holder, a tool body and blades, wherein the tool body is of a flat structure, and the blades are arranged on two sides of the tool body; the knife handle comprises a sliding block, an elastic piece, a rubber sleeve and a fixed shaft; one end of the fixed shaft is fixedly connected with the middle part of one end of the cutter body, and the other end of the fixed shaft is sleeved with a rubber sleeve; the outer wall of the rubber sleeve is provided with a sliding chute; the number of the sliding grooves is two, and T-shaped blocks are connected inside the sliding grooves in a sliding mode; the T-shaped blocks are fixedly connected with the corresponding sliding blocks; the number of the sliding blocks is five, and a chamfer is arranged on one side of each sliding block, which is far away from the rubber sleeve; the sliding block close to the cutter body is fixedly connected with the rubber sleeve; two adjacent sliding blocks are fixedly connected through an elastic piece; the elastic piece is made of elastic materials, the elastic piece is in a sheet shape, and the elastic piece can drive the two adjacent sliding blocks to move close to each other in the pressing process of fingers.

When the cutting tool works, a worker can sweat from hands under long-time high-strength work, the sweated hands can fall off or even hurt the hands due to untightening the tool handle, so that the normal work and personal safety of the worker can be influenced, and different workers have different finger thicknesses, so that the cutting tool needs to be gripped as much as possible, and the worker can conveniently work;

therefore, when a user stretches a finger into a gap between every two adjacent sliding blocks, the two adjacent sliding blocks are close to each other in the process that the finger presses the elastic piece until the two adjacent sliding blocks wrap the corresponding outer contour surface of the finger, and the function of locking the finger is achieved, so that the problem that the cutter slides down or even hurts the hand due to the fact that the cutter is not tightly held when the cutter handle is held to work is solved;

according to the invention, the elastic part is pressed by the fingers to drive the two adjacent sliding blocks to approach each other, so that the sliding blocks completely wrap the outer contour surface which is pressed by the fingers and extends into the space between the two adjacent sliding blocks, thereby achieving the effect that the cutter is not easy to fall off when being held by hands, and further improving the safety of workers in the production working process.

Preferably, the end face, close to the rubber sleeve, of the sliding block is provided with a first circular groove; a ball and a spring are arranged in the first round groove; the round ball is in sliding connection with the first round groove; one end of the spring is connected with the bottom of the first round groove, and the other end of the spring is connected with the ball; a second circular groove is formed in the outer wall of one side, away from the cutter body, of the rubber sleeve; the groove wall of the second circular groove is communicated with the outer wall of the rubber sleeve, and a circular rod is rotatably connected inside the second circular groove; the outer wall of the round rod is axially and uniformly provided with ball grooves; the ball grooves are hemispherical, and the number of the ball grooves is at least four; the spring can push the ball into the ball groove; when the cutter works, a worker rotates one end of the round rod far away from the cutter body by hand, when the outer wall of the round rod close to the ball groove rotates to the end face of one side, close to the rubber sleeve, of the sliding block, the spring which is originally in a compressed state because the ball is extruded by the round rod is loosened, the spring pushes the ball into the ball groove, so that the relative position of the ball and the ball groove is clamped, meanwhile, the sliding block cannot move, and the stability of the sliding block for wrapping fingers is further improved; when the worker wants to take out the fingers after working, the worker rotates the round bar in the opposite direction, the round ball moves towards the inside of the first round groove under the thrust of the round bar, finally the round ball returns to the inside of the first sliding groove, the sliding blocks are not blocked by the round bar on the round ball and can move along the sliding grooves, the distance between every two adjacent sliding blocks is increased, and the fingers can extend out; simultaneously, the setting up of elastic component makes the people use the cutter at the during operation, has certain effect to stopping that the cutting thing gets into the ball inslot, also can make the people hand can not directly hold on the ball groove of pole, has certain comfort level to the staff at the during operation.

Preferably, one end of the round bar, which is far away from the cutter body, is fixedly connected with a knob; the knob is flat; the during operation, the staff rotates the pole with the hand, has set up a knob in one side that the cutter body was kept away from to the pole, has avoided because the surface of pole seems to be difficult to the condition of pressing from both sides holding for circular comparatively smooth, and the knob of platykurtic more can laminate people's finger for the people hand is lighter convenient when rotating the pole more, has further promoted the stability of slider with the pole operation.

Preferably, the two side end faces of the sliding block, which are close to the elastic piece, are symmetrically provided with air holes; the other end of the air hole is communicated with the inside of the first round groove, and the diameter of the air hole is gradually reduced along with the distance from the first round groove; gas generated by the pressure inside the first round groove can impact the corresponding ball groove along one end of the air hole; when the ball-shaped cutting machine works, when the ball slides to the bottom of the first round groove, the space in the first round groove is reduced, but the total amount of gas is unchanged, so that the gas pressure in the first round groove is increased, the gas pressure in the first round groove can impact the corresponding ball groove through the gas hole, and the cut objects in the ball groove can be blown away by the gas flow generated by the gas pressure impact; and, the diameter that keeps away from a recess along with the gas pocket is littleer and more, but the gaseous total amount is unchangeable to the gas pocket spun air current impact velocity increases, makes the cutting thing in the ball groove drop more easily, and simultaneously, the setting of elastic component can prevent that the staff from directly covering on the ball groove, and then influences the effect that the air current in the gas pocket is to blowing off the cutting thing in the ball groove.

Preferably, a first magnet is embedded at the bottom of the ball groove; a second magnet is embedded in the outer wall of the ball close to the ball groove; the magnetism of the first magnet is opposite to that of the second magnet; during operation, when the ball stretched into the ball inslot that corresponds, the magnetic force of a magnet and No. two magnets cooperated with the spring, further stabilized the relative position of pole and slider, also further promoted the stability that the slider wrapped up to people's finger simultaneously.

Preferably, two sides of the cutter body are provided with grooves, and the other two sides of the cutter body are provided with a first threaded hole; the blade and the cutter body are connected in a sliding mode through a groove, and two threaded holes are formed in two sides of the blade; the first threaded hole is connected with the corresponding second threaded hole through a bolt; when the cutter works, the blades which are connected with the two sides of the cutter body in a sliding mode can cut the upper surface and the lower surface of a workpiece or a die at the same time, and the working efficiency is greatly improved; meanwhile, the detachable blade does not influence the normal use of the cutter after the service life is expired, the service life of other parts of the cutter can be maximized, the whole cutter is prevented from being replaced, and the cost is saved.

The invention has the following beneficial effects:

1. according to the invention, the elastic piece is pressed by the fingers to drive the two adjacent sliding blocks to approach each other, so that the sliding blocks completely wrap the outer contour surface which is pressed by the fingers and extends into the space between the two adjacent sliding blocks, thereby achieving the effect that the fingers are not easy to fall off when holding a cutter, further improving the safety of workers in the production working process.

2. According to the invention, the round rod in the second round groove is rotated by hands, when the outer wall of the round rod close to the ball groove is rotated to the end face of one side of the sliding block close to the rubber sleeve, the spring which is originally in a compressed state because the ball is extruded by the round rod is loosened, the spring pushes the ball into the ball groove, so that the relative position of the ball and the ball groove is clamped, meanwhile, the sliding block cannot move, and the stability of the sliding block for wrapping the fingers is further improved.

3. According to the invention, the knob is arranged on one side of the round bar, which is far away from the cutter body, and the flat knob can be more attached to fingers of a person, so that the hand of the person can rotate the round bar more easily and conveniently.

Drawings

The invention is further described with reference to the following figures and embodiments.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a front view of the present invention with the bolt disconnected;

FIG. 3 is a perspective view of the present invention tool holder;

FIG. 4 is a cross-sectional view A-A of FIG. 2;

FIG. 5 is a cross-sectional view B-B of FIG. 4;

fig. 6 is a perspective view of the blade.

In the figure: the knife handle 1, the sliding block 11, the T-shaped block 111, the first round groove 112, the round ball 113, the second magnet 1131, the spring 114, the air hole 115, the elastic piece 12, the round rod 13, the ball groove 131, the knob 132, the first magnet 133, the rubber sleeve 14, the sliding groove 141, the second round groove 142, the fixing shaft 15, the knife body 2, the groove 21, the bolt 22, the first threaded hole 23, the blade 3 and the second threaded hole 31.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, the cutting insert and the cutting tool according to the present invention comprise a holder 1, a tool body 2 and a blade 3, wherein the tool body 2 is a flat structure, and the blade 3 is disposed on two sides of the tool body 2; the hilt 1 comprises a slide block 11, an elastic piece 12, a rubber sleeve 14 and a fixed shaft 15; one end of the fixed shaft 15 is fixedly connected with the middle part of one end of the cutter body 2, and the other end of the fixed shaft is sleeved with a rubber sleeve 14; the outer wall of the rubber sleeve 14 is provided with a sliding groove 141; the number of the sliding grooves 141 is two, and the T-shaped blocks 111 are connected inside the sliding grooves 141 in a sliding manner; the T-shaped blocks 111 are fixedly connected with the corresponding sliding blocks 11; the number of the sliding blocks 11 is five, and a chamfer is arranged on one side of each sliding block 11, which is far away from the rubber sleeve; the sliding block 11 close to the cutter body 2 is fixedly connected with the rubber sleeve 14; two adjacent sliding blocks 11 are fixedly connected through an elastic piece 12; the elastic piece 12 is made of an elastic material, the elastic piece 12 is sheet-shaped, and the elastic piece 12 drives the two adjacent sliding blocks 11 to move close to each other in the process of being pressed by fingers;

therefore, in the invention, when a user stretches a finger into a gap between two adjacent sliding blocks 11, the two adjacent sliding blocks 11 are close to each other in the process of pressing the elastic part 12 by the finger until the two adjacent sliding blocks 11 wrap the corresponding outer contour surface of the finger, so that the function of locking the finger is realized, and the problem that the cutter slides down or even scratches the hand due to the reason that the cutter is not tightly held when the cutter handle is held is solved;

according to the invention, the two adjacent sliding blocks 11 are driven to approach each other by pressing the elastic part 12 with the fingers, so that the sliding blocks 11 completely wrap the outer contour surface which is pressed by the fingers and extends into the space between the two adjacent sliding blocks 11, thereby achieving the effect that the hand is not easy to fall off when holding the knife, and further improving the safety of workers in the production working process.

As an embodiment of the invention, a first circular groove 112 is formed on the end surface of the sliding block 11 close to the rubber sleeve 14; a round ball 113 and a spring 114 are arranged in the first round groove 112; the round ball 113 is in sliding connection with the first round groove 112; one end of the spring 114 is connected with the bottom of the first round groove 112, and the other end is connected with the ball 113; a second circular groove 142 is formed in the outer wall of one side, away from the cutter body 2, of the rubber sleeve 14; the wall of the second circular groove 142 is communicated with the outer wall of the rubber sleeve 14, and a circular rod 13 is rotatably connected inside the second circular groove 142; the outer wall of the round rod 13 is uniformly provided with ball grooves 131 in the axial direction; the ball grooves 131 are hemispherical, and the number of the ball grooves 131 is at least four; the spring 114 can push the ball 113 into the ball groove 131; when the cutter works, a worker rotates one end of the round rod 13 far away from the cutter body 2 by hand, when the outer wall of the round rod 13 close to the ball groove 131 rotates to the end face of one side, close to the rubber sleeve 14, of the sliding block 11, the round ball 113 is squeezed by the round rod 13 to form the spring 114 in a compressed state, the spring 114 is loosened, the round ball 113 is pushed into the ball groove 131 by the spring 114, so that the relative position of the round ball 113 and the ball groove 131 is clamped, meanwhile, the sliding block 11 cannot move, and the stability of the sliding block 11 for wrapping fingers is further improved; when the worker wants to take out the fingers after working, the round bar 13 is rotated in the opposite direction, the round ball 113 moves towards the first round groove 112 under the thrust of the round bar 13, and finally the round ball 113 returns to the first sliding groove 141, the sliding blocks 11 are not hindered by the round bar 13 to the round ball 113 and can move along the sliding grooves 141, the distance between every two adjacent sliding blocks 11 is increased, and the fingers can extend out; meanwhile, the elastic part 12 is arranged to enable a user to use the cutter to have a certain effect on preventing cut objects from entering the ball groove 131 when the cutter works, so that the hand of the user cannot be directly held on the ball groove 131 of the round bar 13, and the hand of the user has certain comfort level when the cutter works.

As an embodiment of the present invention, the end of the round bar 13 away from the cutter body 2 is fixedly connected with a knob 132; the knob 132 is flat; during operation, the staff rotates pole 13 with the hand, has set up a knob 132 in one side that the cutter body 2 was kept away from to the pole, has avoided because the surface of pole 13 seems to be the condition of being difficult to the clamp because circular comparatively smooth, and the flat knob 132 more can laminate people's finger for the staff is light more convenient when rotating pole 13, has further promoted the stability of slider 11 with the operation of pole 13.

As an embodiment of the present invention, the sliding block 11 is symmetrically provided with air holes 115 near both side end surfaces of the elastic member 12; the other end of the air hole 115 is communicated with the inside of the first round groove 112, and the diameter of the air hole 115 is gradually reduced along with the distance from the first round groove 112; the gas generated by the first round groove 112 under pressure can impact the corresponding ball groove 131 along one end of the air hole 115; when the air pressure impact device works, when the ball 113 slides to the bottom of the first round groove 112, the space in the first round groove 112 is reduced, but the total amount of air is unchanged, so that the air pressure in the first round groove is increased, the air pressure in the first round groove 112 impacts the corresponding ball groove 131 through the air hole 115, and the air flow generated by the air pressure impact blows off the cutting objects in the ball groove 131; moreover, as the diameter of the air hole 115 is smaller and smaller away from the first groove 21, but the total amount of air is unchanged, the impact speed of the air flow ejected from the air hole 115 is increased, so that the cut objects in the ball groove 131 can fall off more easily, and meanwhile, the arrangement of the elastic element 12 can prevent hands from directly covering the ball groove 131, thereby influencing the effect of the air flow in the air hole 115 on blowing off the cut objects in the ball groove 131.

In one embodiment of the present invention, a first magnet 133 is embedded in the bottom of the ball groove 131; a second magnet 1131 is embedded in the outer wall of the ball 113 close to the ball groove 131; the first magnet 133 and the second magnet 1131 have opposite magnetism; during operation, when the ball 113 extends into the corresponding ball slot 131, the magnetic force of the first magnet 133 and the second magnet 1131 is matched with the spring 114, so as to further stabilize the relative position of the round bar 13 and the sliding block 11, and further improve the stability of the sliding block 11 for wrapping the human fingers.

As an embodiment of the present invention, two sides of the cutter body 2 are provided with grooves 21, and the other two sides are provided with a first threaded hole 23; the blade 3 is connected with the cutter body 2 in a sliding mode through the groove 21, and two sides of the blade 3 are provided with a second threaded hole 31; the first threaded hole 23 is connected with the corresponding second threaded hole 31 through a bolt 22; when the cutter works, the blades 3 which are connected with the two sides of the cutter body 2 in a sliding mode can cut any cutting surface of a workpiece or a die, and the working efficiency is greatly improved; meanwhile, the detachable blade 3 does not affect the normal use of the cutter after the service life is over, other parts of the cutter can be maximally utilized, the whole cutter is prevented from being replaced, and the cost is saved.

The specific working process is as follows:

when the device works, a worker stretches fingers into a gap between two adjacent sliding blocks 11, and when the fingers press the elastic part 12, the two adjacent sliding blocks 111 are close to each other under the pulling force of the elastic part 12 until the two adjacent sliding blocks 11 wrap the outer contour surface of the fingers; at the moment, a hand rotates the knob 132 at one end of the round rod 13 far away from the cutter body 2, the outer wall of the round rod 13 close to the ball groove 131 is rotated to the end face of one side of the sliding block 11 close to the rubber sleeve 14, the round ball 113 is squeezed by the round rod 13 to form the spring 114 in a compressed state, the spring 114 is not pressed any more and is released, the round ball 113 can be pushed into the ball groove 131 by the spring 114, the relative position of the round ball 113 and the ball groove 131 is clamped, and meanwhile, the sliding block 11 cannot move under the influence of interaction of the round rod and the round ball; when the ball 113 slides to the bottom of the first round groove 112, the space in the first round groove 112 is reduced, but the total amount of gas is unchanged, so that the pressure in the first round groove is increased, the air pressure in the first round groove 112 can impact the corresponding ball groove 131 through the air hole 115, the air flow generated by the air pressure impact can blow off the cuttings in the ball groove 131, and as the diameter of the air hole 115 far away from the first round groove is smaller and smaller, the impact speed of the air flow sprayed out of the air hole 115 is increased, so that the cuttings in the ball groove 131 can fall off more easily, in the working process, the arrangement of the elastic member 12 can prevent hands from directly covering the ball groove 131 and affecting the condition that the air flow in the air hole 115 blows off the cuttings in the ball groove 131, meanwhile, the elastic member 12 can also prevent the cuttings from entering the ball groove 131, and can not enable the hands to be directly held at the corners of the edges of the ball groove 131 of the round bar 13; when the round ball 113 extends into the corresponding ball groove 131, the magnetic force of the first magnet 133 and the second magnet 1131 is matched with the spring 114, so that the relative position of the round rod 13 and the sliding block 11 is further stabilized, meanwhile, the stability of the sliding block 11 for wrapping the human fingers is further improved, and the final locking of the fingers is realized by the sliding block; when the worker wants to take out the finger after the work is finished, the worker only needs to rotate the round bar 13 in the opposite direction, the round ball 113 moves towards the inside of the first round groove 112 under the thrust of the round bar 13, finally the round ball 113 returns to the inside of the first sliding groove 141, the sliding block 11 is not obstructed by the round bar 13 to the round ball 113, and can move along the sliding groove 141, and the finger can be extended out; the blade 3 which is connected with the two sides of the cutter body 2 in a sliding way can cut any cutting surface of a workpiece or a mould.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A cutting tool comprises a tool holder, a tool body and a blade, and is characterized in that: the cutter body (2) is of a flat structure, and blades (3) are arranged on two sides of the cutter body (2); the hilt (1) comprises a sliding block (11), an elastic piece (12), a rubber sleeve (14) and a fixed shaft (15); one end of the fixed shaft (15) is fixedly connected with the middle part of one end of the cutter body (2), and the other end of the fixed shaft is sleeved with a rubber sleeve (14); a sliding groove (141) is formed in the outer wall of the rubber sleeve (14); the number of the sliding grooves (141) is two, and T-shaped blocks (111) are connected inside the sliding grooves (141) in a sliding mode; the T-shaped block (111) is fixedly connected with the corresponding sliding block (11); the number of the sliding blocks (11) is five, and a chamfer is arranged on one side, away from the rubber sleeve, of each sliding block (11); a sliding block (11) close to the cutter body (2) is fixedly connected with a rubber sleeve (14); two adjacent sliding blocks (11) are fixedly connected through an elastic piece (12); the elastic piece (12) is made of elastic materials, the elastic piece (12) is sheet-shaped, and the elastic piece (12) can drive the two adjacent sliding blocks (11) to move close to each other in the pressing process of fingers.

2. A cutting tool according to claim 1, wherein: the end surface of the sliding block (11) close to the rubber sleeve (14) is provided with a first circular groove (112); a round ball (113) and a spring (114) are arranged in the first round groove (112); the round ball (113) is in sliding connection with the first round groove (112); one end of the spring (114) is connected with the bottom of the first round groove (112), and the other end of the spring is connected with the round ball (113); a second circular groove (142) is formed in the outer wall of one side, away from the cutter body (2), of the rubber sleeve (14); the wall of the second round groove (142) is communicated with the outer wall of the rubber sleeve (14), and a round rod (13) is rotatably connected inside the second round groove (142); the outer wall of the round rod (13) is axially and uniformly provided with ball grooves (131); the ball grooves (131) are hemispherical, and the number of the ball grooves (131) is at least four; the spring (114) can push the round ball (113) into the ball groove (131).

3. A cutting tool according to claim 2, wherein: one end of the round bar (13) far away from the cutter body (2) is fixedly connected with a knob (132); the knob (132) is flat.

4. A cutting tool according to claim 3, wherein: air holes (115) are symmetrically formed in the end faces of the two sides, close to the elastic piece (12), of the sliding block (11); the other end of the air hole (115) is communicated with the interior of the first round groove (112), and the diameter of the air hole (115) is gradually reduced along with the distance from the first round groove (112); the gas generated by the first round groove (112) under pressure can impact the corresponding ball groove (131) along one end of the air hole (115).

5. A cutting tool according to claim 4, wherein: a first magnet (133) is embedded at the bottom of the ball groove (131); a second magnet (1131) is embedded in the outer wall, close to the ball groove (131), of the round ball (113); the first magnet (133) and the second magnet (1131) are opposite in magnetism.

6. A cutting insert characterized by: the insert (3) is suitable for use in a cutting tool according to any one of claims 1-5; two sides of the cutter body (2) are provided with grooves (21), and the other two sides are provided with a first threaded hole (23); the blade (3) and the cutter body (2) are connected in a sliding mode through a groove (21), and two threaded holes (31) are formed in two sides of the blade (3); the first threaded hole (23) is connected with the corresponding second threaded hole (31) through a bolt (22).