阅读说明：本技术 一种硬质平底合金铣刀 (Hard flat-bottom alloy milling cutter ) 是由 王辰 陈文超 于 2021-08-13 设计创作，主要内容包括：本发明涉及铣刀技术领域,具体的说是一种硬质平底合金铣刀；包括棒体和刀体；刀体包括内刀体、外刀体、一号槽、一号弹簧、凸块、圆孔、一号刀片、二号槽和二号刀片；当机床进行工作时,机床带动铣刀进行高速转动,当内刀体内的二号刀片弹出二号槽后,一号刀片和二号刀片同时进行转动,二号刀片和一号刀片对工件进行加工,通过在外刀体上端开设排屑孔,当一号刀片对工件进加工时,一号刀片使加工后产生的碎屑通过排屑孔进行排屑。(The invention relates to the technical field of milling cutters, in particular to a hard flat-bottom alloy milling cutter; comprises a rod body and a cutter body; the cutter body comprises an inner cutter body, an outer cutter body, a first groove, a first spring, a lug, a round hole, a first blade, a second groove and a second blade; when the machine tool works, the machine tool drives the milling cutter to rotate at a high speed, after a second blade in the inner cutter body is ejected out of a second groove, the first blade and the second blade rotate simultaneously, the second blade and the first blade process a workpiece, the upper end of the outer cutter body is provided with a chip removal hole, and when the first blade processes the workpiece, the first blade enables chips generated after processing to be removed through the chip removal hole.)

1. The hard flat-bottom alloy milling cutter comprises a rod body and a cutter body, and is characterized in that: the outer ring of the rod body is provided with a chip removal groove, the cutter body is arranged below the rod body and comprises an inner cutter body (1) and an outer cutter body (11), the inner cutter body (1) is fixedly connected below the rod body, the outer cutter body (11) is provided with a first groove (12) in a vertically through mode, the inner cutter body (1) is in sliding connection with the inner wall of the first groove (12) of the outer cutter body (11), a first spring (13) is fixedly connected to the side wall, which is not in contact with the inner cutter body (1), in the first groove (12), the other end of the first spring (13) is fixedly connected with the inner cutter body (1), a groove is arranged at one side of the inner cutter body (1), a convex block (14) is fixedly connected in the groove through a reset spring, a round hole (15) is formed at one side of the outer cutter body (11), the convex block (14) is elastically inserted into the round hole (15), a first blade (16) is fixedly connected to one side, which is opposite to the round hole (15), of the outer cutter body (11), a second groove (17) is formed in one end, far away from the protruding block (14), of the inner cutter body (1), a second blade (18) is connected in the second groove (17) in a sliding mode, and the second blade (18) is fixedly connected with the groove wall of the second groove (17) through a second spring (191).

2. The hard flat bottom alloy milling cutter according to claim 1, wherein: the cutter is characterized in that one end, close to the first blade (16), of the outer cutter body (11) is uniformly provided with chip removal holes (19), and the chip removal holes (19) are located above the first blade (16).

3. The hard flat bottom alloy milling cutter according to claim 2, wherein: interior cutter body (1) is seted up No. three groove (2), No. three groove (2) are located the top of No. two grooves (17), No. three groove (2) sliding connection have one piece (21), one end that lug (14) were kept away from in one piece (21) links firmly with a groove (12) inner wall of outer cutter body (11), No. one piece (21) are located the below of chip removal hole (19).

4. The hard flat bottom alloy milling cutter according to claim 3, wherein: the first block (21) is obliquely arranged, the horizontal height of one end, close to the chip removal hole (19), of the first block (21) is lower than that of one end, far away from the chip removal hole (19), of the first block (21), and the third groove (2) and the first block (21) are both arranged in an arc shape.

5. The milling cutter according to claim 4, wherein the milling cutter comprises: the length of the first blade (16) is different from that of the second blade (18), and the sections of the first blade (16) and the second blade (18) are the same.

6. The milling cutter according to claim 5, wherein the milling cutter comprises: no. four grooves (171) have been seted up to the upside cell wall of No. two grooves (17), No. five grooves (181) have been seted up to the upper end of No. two blade (18), there is No. two piece (183) through No. three spring (182) sliding connection in No. five grooves (181), No. five groove (181) are stretched out to No. two piece (183) one end.

Technical Field

The invention relates to the technical field of milling cutters, in particular to a hard flat-bottom alloy milling cutter.

Background

The hard alloy milling cutter is a milling cutter made of hard alloy, and the hard alloy milling cutter firstly knows what is hard alloy, wherein the hard alloy is a powder metallurgy product which is sintered in a vacuum furnace or a hydrogen reduction furnace by taking micron-sized carbide powder of high-hardness refractory metal as a main component and cobalt or nickel and molybdenum as a binder; when the hard alloy milling cutter in the prior art is used for processing workpieces with different specifications, the milling cutter with different specifications needs to be replaced.

A technical scheme of a hard flat-bottom alloy milling cutter appears in the prior art, for example, a chinese patent with the application number CN2013100770079 discloses a hard alloy milling cutter disc relating to the field of machining, wherein the milling cutter disc comprises a cutter body for mounting the hard alloy milling cutter and the hard alloy milling cutter; the cutter body is a disc-shaped body with a shaft hole in the middle and four cutter grooves in the edge, and a notch is formed in the edge of the cutter body between every two adjacent cutter grooves; hard alloy milling cutters with cutter heads protruding out of the same disc surface of the cutter body are arranged in the four cutter grooves, and the lengths of the hard alloy milling cutters arranged in the two opposite cutter grooves are shorter than those of the hard alloy milling cutters arranged in the other two opposite cutter grooves; the inner side wall of at least one side of the notch is provided with a screw hole communicated with the adjacent cutter groove, and the screw hole corresponds to the cutter body of the hard alloy milling cutter positioned in the cutter groove; the milling cutter head can simultaneously machine high and low two surfaces forming steps, and machined parts are good in precision and high in yield;

in the prior art, the cutter is provided with a shaft hole, a cutter groove, a disc-shaped body, a notch, a cutter head, a blade, a cutter withdrawing rod, a lifting platform and a positioning bead; the method can simultaneously process two high and low surfaces forming the steps, and the processed parts have good precision and high yield; however, when the cutter head in the prior art is used for machining workpieces with different specifications, milling cutters with different sizes and specifications need to be replaced, so that various milling cutters need to be prepared, the labor cost is indirectly increased, and the labor intensity is improved.

In view of this, the present invention provides a hard flat bottom alloy milling cutter, which solves the above problems.

Disclosure of Invention

In order to make up for the defects of the prior art, the problems that when the milling cutter in the prior art is used for processing workpieces with different specifications, the milling cutter with different sizes and specifications needs to be replaced, so that various milling cutters need to be prepared, the labor cost is indirectly increased, and the labor intensity is improved are solved; the invention provides a hard flat-bottom alloy milling cutter.

The technical scheme adopted by the invention for solving the technical problems is as follows: a hard flat-bottom alloy milling cutter comprises a rod body and a cutter body, wherein a chip groove is formed in the outer ring of the rod body, the cutter body is arranged below the rod body and comprises an inner cutter body and an outer cutter body, the inner cutter body is fixedly connected below the cutter body, a first groove is formed in the outer cutter body in a vertically through mode, the inner body is in sliding connection with the inner wall of the first groove of the outer cutter body, a first spring is fixedly connected to the side wall, which is not in contact with the inner cutter body, in the first groove, the other end of the first spring is fixedly connected with the inner cutter body, a groove is formed in one side of the inner cutter body, a lug is fixedly connected in the groove through a reset spring, a round hole is formed in one side of the outer cutter body, the lug is bounced into the round hole, a first blade is fixedly connected to one side, which is opposite to the round hole, a second groove is formed in one end, which is far away from the lug, in the cutter body, and a second blade is connected in the second groove in a sliding mode, the second blade is fixedly connected with the wall of the second groove through a second spring;

when the milling cutter is used, when an operator operates the machine tool to work, the machine tool works to drive the milling cutter to rotate, when the operator processes different workpieces and the milling cutters with different specifications are needed, the convex block on one side of the outer cutter body of the milling cutter is pressed to enter the round hole, so that the convex block does not block the outer cutter body and the inner cutter body any more, after the reset spring is extruded, the convex block enters the groove, the outer cutter body slides on two sides of the inner cutter body, after the outer cutter body slides out of the range of the second groove, the second spring in the second groove moves, the second spring enables the second cutter blade to pop out of the second groove, and the first cutter blade and the second cutter blade are arranged side by side, so that the specification of the milling cutter is increased, and the milling cutter is suitable for processing workpieces with different sizes.

Preferably, chip removal holes are uniformly formed in one end, close to the first blade, of the outer cutter body, and the chip removal holes are located above the first blade;

when the milling cutter is used, chip removing holes are uniformly formed in one end, close to the first blade, of the outer cutter body, the chip removing holes are located above the first blade, when the milling cutter works, the milling cutter is driven by the machine tool to rotate at a high speed, after the second blade in the inner cutter body is ejected out of the second groove, the first blade and the second blade rotate simultaneously, the second blade and the first blade process a workpiece, the chip removing holes are formed in the upper end of the outer cutter body, and when the first blade processes the workpiece, chips generated after processing are removed through the chip removing holes by the first blade.

Preferably, a third groove is formed in the inner cutter body and is positioned above the second groove, a first block is connected in the third groove in a sliding manner, one end, far away from the convex block, of the first block is fixedly connected with the inner wall of the first groove of the outer cutter body, and the first block is positioned below the chip removal hole;

when the milling cutter is used, the third groove is arranged above the second groove, the first block is fixedly connected with the outer cutter body and is positioned below the chip removal hole, when the milling cutter works, the milling cutter is driven by the machine tool to rotate, so that the first blade and the second blade process a workpiece, when the workpiece is processed, chips generated by the workpiece are discharged to the outside through the chip removal hole, and when the outer cutter body slides out from the inner cutter body, the first block slides out of the third groove along with the outer cutter body, so that the chips enter the inner part of the outer cutter body through the chip removal hole and are blocked by the first block, and the chips are prevented from returning to the processing surface to influence the processing of the milling cutter.

Preferably, the first block is arranged obliquely, the horizontal height of one end, close to the chip removal hole, of the first block is lower than that of one end, far away from the chip removal hole, of the first block, and the third groove and the first block are both arranged in an arc shape;

during the use, set up for the slope through making a piece, make a piece be close to the one end level in chip removal hole and be less than a piece and keep away from the one end in chip removal hole, make No. three grooves and a piece be the arc setting, when the lathe is worked, the lathe drives milling cutter and carries out high-speed rotation, thereby make a blade and No. two blades process the work piece, make the piece that produces after the processing pass through the chip removal hole and get into the top of a piece, set up for the slope through making a piece, and a piece is the arc setting, after the chip removal hole gets into a piece top, subsequent piece extrudees the piece that gets into behind the chip removal hole, thereby make the piece along with the slope of a piece, the piece is discharged from outer cutter body upper end.

Preferably, the length of the first blade is different from that of the second blade, and the sections of the first blade and the second blade are the same;

when the milling cutter is used, the length of the first blade is different from that of the second blade, but the sections of the first blade and the second blade are the same, when the outer cutter body slides from the inner cutter body, the outer cutter body slides out of the position of the second groove, the second blade in the second groove is popped out from the second groove, the first blade and the second blade are enabled to be the same in section size, when the first blade and the second blade are arranged side by side, the first blade and the second blade form a whole, and therefore when the milling cutter is driven by a machine tool to rotate, the machining efficiency of the first blade and the second blade on a workpiece is improved.

Preferably, a fourth groove is formed in the upper groove wall of the second groove, a fifth groove is formed in the upper end of the second blade, a second block is connected in the fifth groove in a sliding mode through a third spring, and one end of the second block extends out of the fifth groove;

during the use, No. four grooves have been seted up through the upside cell wall in No. two grooves, No. five grooves have been seted up in the upper end of No. two blades, there is No. two pieces through No. three spring sliding connection in No. five inslots, make No. two piece one end when No. two blades are not abreast with a blade, No. two piece one end is located No. five inslots, when No. two blades pop out from No. two grooves, extrude to No. five inslots through making No. two pieces, make No. two blades slide in an inslot, after No. two blades and a blade are abreast, make No. two pieces receive No. three spring elasticity, No. two pieces pop into No. four inslots from No. five inslots, thereby make No. two blades fix No. two inslots, thereby improved No. two blades and a blade stability when adding man-hour.

The invention has the following beneficial effects:

1. the hard flat-bottom alloy milling cutter is provided with an outer cutter body, a first blade and a chip removal hole; when the machine tool works, the machine tool drives the milling cutter to rotate at a high speed, after a second blade in the inner cutter body is ejected out of a second groove, the first blade and the second blade rotate simultaneously, the second blade and the first blade process a workpiece, the upper end of the outer cutter body is provided with a chip removal hole, and when the first blade processes the workpiece, the first blade enables chips generated after processing to be removed through the chip removal hole.

2. The hard flat-bottom alloy milling cutter is characterized in that a second groove, a fourth groove, a second blade, a fifth groove, a third spring and a second block are arranged; make No. two piece one end when No. two blades are not abreast with a blade, No. two piece one end is located No. five inslots, when No. two blades pop out from No. two grooves, extrude to No. five inslots through making No. two pieces, make No. two blades slide in an inslot, after No. two blades and a blade are abreast, make No. two pieces receive No. three spring elasticity, No. two pieces are followed No. five inslots and are popped into No. four inslots, thereby make No. two blades fix No. two inslots, thereby improved the stability that No. two blades and a blade add man-hour.

Drawings

The invention will be further explained with reference to the drawings.

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

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

FIG. 3 is a structural view of the inner and outer cutter bodies of FIG. 1;

FIG. 4 is a structural view of the inner cutter body of FIG. 3;

FIG. 5 is a partial enlarged view at B in FIG. 4;

FIG. 6 is a structural view of the outer cutter body of FIG. 3;

in the figure: the cutter comprises an inner cutter body 1, an outer cutter body 11, a first groove 12, a first spring 13, a bump 14, a round hole 15, a first blade 16, a second groove 17, a fourth groove 171, a second blade 18, a fifth groove 181, a third spring 182, a second block 183, a chip removal hole 19, a second spring 191, a third groove 2 and a first block 21.

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, a hard flat-bottom alloy milling cutter comprises a rod body and a cutter body, wherein a chip groove is formed in the outer ring of the rod body, the cutter body is arranged below the rod body, the cutter body comprises an inner cutter body 1 and an outer cutter body 11, the inner cutter body 1 is fixedly connected below the cutter body, a first groove 12 is formed in the outer cutter body 11 in a vertically penetrating manner, the inner cutter body 1 is slidably connected with the inner wall of the first groove 12 of the outer cutter body 11, a first spring 13 is fixedly connected with the side wall of the first groove 12, which is not in contact with the inner cutter body 1, the other end of the first spring 13 is fixedly connected with the inner cutter body 1, a groove is formed in one side of the inner cutter body 1, a lug 14 is fixedly connected with the groove through a reset spring, a circular hole 15 is formed in one side of the outer cutter body 11, the lug 14 is sprung into the circular hole 15, a first blade 16 is fixedly connected with one side of the outer cutter body 11, a second groove 17 is formed in one end of the inner cutter body 1, which is far away from the lug 14, a second blade 18 is connected in the second groove 17 in a sliding manner, and the second blade 18 is fixedly connected with the groove wall of the second groove 17 through a second spring 191;

when the milling cutter is used, when an operator operates the machine tool to work, the machine tool works to drive the milling cutter to rotate, when the operator processes different workpieces and the milling cutters with different specifications are needed, the convex block 14 on one side of the outer cutter body 11 is pressed to enable the convex block 14 to enter the round hole 15, the convex block 14 does not block the outer cutter body 11 and the inner cutter body 1 any more, after the reset spring is extruded, the convex block 14 enters the groove, the outer cutter body 11 slides on two sides of the inner cutter body 1, after the outer cutter body 11 slides out of the range of the second groove 17, the second spring 191 in the second groove 17 moves, the second blade 18 is ejected out of the second groove 17 by the second spring 191, and the first blade 16 and the second blade 18 are arranged side by side, so that the specification of the milling cutter is increased, and the cutter body is suitable for processing workpieces with different sizes.

As a specific embodiment of the present invention, the outer cutter body 11 has a uniform clearance hole 19 at one end close to the first blade 16, and the clearance hole 19 is located above the first blade 16;

when the milling cutter is used, the outer cutter body 11 is provided with the chip removing holes 19 at one end close to the first blade 16, so that the chip removing holes 19 are located above the first blade 16, when the milling cutter works, the milling cutter is driven by the machine tool to rotate at a high speed, after the second blade 18 in the inner cutter body 1 is ejected out of the second groove 17, the first blade 16 and the second blade 18 rotate simultaneously, the second blade 18 and the first blade 16 process a workpiece, and the chip removing holes 19 are formed in the upper end of the outer cutter body 11, so that when the first blade 16 processes the workpiece, chips generated after processing are removed by the first blade 16 through the chip removing holes 19.

As a specific embodiment of the invention, a third groove 2 is formed in the inner cutter body 1, the third groove 2 is positioned above the second groove 17, a first block 21 is connected in the third groove 2 in a sliding manner, one end of the first block 21, which is far away from the bump 14, is fixedly connected with the inner wall of the first groove 12 of the outer cutter body 11, and the first block 21 is positioned below the chip removal hole 19;

when the milling cutter is used, the third groove 2 is formed in the inner cutter body 1, the third groove 2 is located above the second groove 17, the first block 21 is connected with the outer cutter body 11 in the third groove 2 in a sliding mode, the first block 21 is fixedly connected with the first cutter body 11, the first block 21 is located below the chip removal hole 19, when the milling cutter works, the milling cutter is driven by the machine tool to rotate, the first blade 16 and the second blade 18 are used for processing a workpiece, when the workpiece is processed, chips generated by the workpiece are discharged to the outside through the chip removal hole 19, when the outer cutter body 11 slides out of the inner cutter body 1, the first block 21 slides out of the third groove 2 along with the outer cutter body 11, and therefore when the chips enter the inner cutter body 11 through the chip removal hole 19, the chips are blocked by the first block 21, and the chips are prevented from returning to the processing surface to influence the processing of the milling cutter.

As a specific embodiment of the invention, the first block 21 is obliquely arranged, the horizontal height of the end, close to the chip removal hole 19, of the first block 21 is lower than that of the end, far away from the chip removal hole 19, of the first block 21, and the third groove 2 and the first block 21 are both arc-shaped;

when the milling cutter is used, the first block 21 is arranged in an inclined mode, the horizontal height of one end, close to the chip removal hole 19, of the first block 21 is lower than that of one end, far away from the chip removal hole 19, of the first block 21, the third groove 2 and the first block 21 are both arranged in an arc mode, when the milling cutter works, the milling cutter is driven by the milling cutter to rotate at a high speed, the first blade 16 and the second blade 18 are used for processing a workpiece, chips generated after processing enter the upper portion of the first block 21 through the chip removal hole 19, the first block 21 is arranged in an inclined mode, the first block 21 is arranged in an arc mode, after the chip removal hole 19 enters the upper portion of the first block 21, the chips after entering the chip removal hole 19 are subsequently extruded, and the chips are discharged from the upper end of the outer cutter body 11 along with the inclination of the first block 21.

As a specific embodiment of the present invention, the lengths of the first blade 16 and the second blade 18 are different, and the sections of the first blade 16 and the second blade 18 are the same;

when the milling cutter is used, the length of the first blade 16 is different from that of the second blade 18, but the sections of the first blade 16 and the second blade 18 are the same, when the outer cutter body 11 slides from the inner cutter body 1, the outer cutter body 11 slides out of the position of the second groove 17, the second blade 18 in the second groove 17 is ejected out of the second groove 17, the sections of the first blade 16 and the second blade 18 are the same, when the first blade 16 and the second blade 18 are arranged side by side, the first blade 16 and the second blade 18 form a whole, and therefore when the milling cutter is driven by a machine tool to rotate at a high speed, the machining efficiency of the first blade 16 and the second blade 18 on a workpiece is improved.

As a specific embodiment of the present invention, a fourth groove 171 is formed on an upper groove wall of the second groove 17, a fifth groove 181 is formed on an upper end of the second blade 18, a second block 183 is slidably connected to the fifth groove 181 through a third spring 182, and one end of the second block 183 extends out of the fifth groove 181;

when the cutter is used, the groove wall on the upper side of the second groove 17 is provided with the fourth groove 171, the upper end of the second blade 18 is provided with the fifth groove 181, the second block 183 is connected with the second block 183 in the fifth groove 181 in a sliding mode through the third spring 182, one end of the second block 183 is located in the fifth groove 181 when the second blade 18 is not arranged in parallel with the first blade 16, one end of the second block 183 is located in the fifth groove 181, when the second blade 18 is ejected out of the second groove 17, the second blade 18 slides in the first groove 12 by pressing the second block 183 into the fifth groove 181, and after the second blade 18 and the first blade 16 are arranged in parallel, the second block 183 is elastically urged by the third spring 182 and the second block 183 is ejected into the fourth groove 171 from the fifth groove 181, so that the second blade 18 is fixed in the second groove 17, and the stability of the second blade 18 and the first blade 16 during machining is improved.

The specific working process is as follows:

when an operator operates the machine tool to work, the machine tool works to drive the milling cutter to rotate, when the operator processes different workpieces and needs milling cutters with different specifications, the lug 14 on one side of the outer cutter body 11 is pressed to enable the lug 14 to enter the round hole 15, so that the lug 14 does not block the outer cutter body 11 and the inner cutter body 1 any more, after the reset spring is extruded, the lug 14 enters the groove, the outer cutter body 11 slides on two sides of the inner cutter body 1, after the outer cutter body 11 slides out of the range of the second groove 17, the second spring 191 in the second groove 17 moves, the second spring 191 enables the second blade 18 to pop out of the second groove 17, and the first blade 16 and the second blade 18 are arranged side by side, so that the specification of the milling cutter is increased, and the cutter body is suitable for processing workpieces with different sizes.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention. All other embodiments obtained by a person skilled in the art without making any inventive step are within the scope of protection of the present invention.