CN117206602A - Die-cut processing gear model cutter with nano coating film - Google Patents

Abstract

The invention provides a die-cut processing gear model cutter with a nano coating, which relates to the technical field of gear processing and comprises the following components: the installation assembly is provided with a push rod for installing a workpiece, and the workpiece and the push rod are coaxial; a plurality of groups of cutting blades stacked from top to bottom; each cutting blade is provided with a cutting hole coaxial with the push rod, the inner side wall of each cutting blade is provided with cutting teeth, and the inner diameters of each group of cutting holes are sequentially reduced from top to bottom; a gap exists between the cutting tooth below and the cutting tooth adjacent to the cutting tooth above and forms a first chip groove; each group of cutting blades is provided with a second chip groove communicated with the first chip groove, and the second chip grooves radially penetrate through the cutting blades; the shape and the inner diameter of the lowest cutting tooth are the same as those of the target workpiece; the base is provided with a positioning piece and a blanking hole; wherein, every group cutting blade all is equipped with setting element complex first locating hole, can process all dogteeth of work piece simultaneously, machining efficiency improves greatly.

Description

Die-cut processing gear model cutter with nano coating film

Technical Field

The invention relates to the technical field of gear machining, in particular to a die-cut machining gear model cutter with a nano coating.

Background

There are various gear machining methods, such as hobbing and gear shaping. Taking gear shaping as an example, refer to an invention patent with publication number CN115156632A as a numerical control precise gear shaping machine, which comprises a base, wherein a workbench is fixedly arranged on the base, a placing table is rotationally connected to the top of the workbench, the placing table is driven to rotate by a stepping motor, and a gear blank is arranged on the top of the placing table. The upper part of the workbench is fixedly connected with a top plate through a connecting plate, the bottom of the top plate is movably connected with a driving assembly, the bottom of the driving assembly is fixedly provided with a gear shaping cutter, and the driving assembly drives the gear shaping cutter to regularly reciprocate up and down in the vertical direction so as to realize the cutting processing of the gear blank. The gear shaper in the prior art can only machine part of the convex teeth of the tooth blank every time, and a great deal of time can be consumed after one gear is machined, so that the machining efficiency is extremely low.

Accordingly, there is a need for a die-cut machined gear model tool with nano-coating that provides gear machining efficiency.

Disclosure of Invention

The invention aims to provide a die-cut processing gear model cutter with a nano-coating film, which aims to solve the technical problems that a gear shaper in the prior art only can process partial convex teeth of a tooth blank in each cutting process and has low processing efficiency _。

In order to achieve the above purpose, the present invention provides the following technical solutions:

the invention provides a die-cut processing gear model cutter with nano-coating, which comprises the following components: the installation assembly is provided with a push rod for installing a workpiece, and the workpiece and the push rod are coaxial; a plurality of groups of cutting blades stacked from top to bottom; each cutting blade is provided with a cutting hole coaxial with the push rod, the inner side wall of each cutting blade is provided with cutting teeth, and the inner diameters of each group of cutting holes are sequentially reduced from top to bottom; a gap exists between the cutting tooth below and the cutting tooth adjacent to the cutting tooth above and forms a first chip groove; each group of cutting blades is provided with a second chip groove communicated with the first chip groove, and the second chip grooves radially penetrate through the cutting blades; the shape and the inner diameter of the lowest cutting tooth are the same as those of the target workpiece; the base is provided with a positioning piece and a blanking hole; the blanking hole is coaxial with the cutting hole and is used for the workpiece to pass through; wherein, every group cutting blade all is equipped with setting element complex first locating hole.

Preferably, the inner diameter surface of each set of cutting teeth is a bevel, and the upper end of the bevel is closer to the axis of the cutting hole than the lower end.

Preferably, the side wall of the first chip groove comprises a first conical surface and a second conical surface; the lower end of the first conical surface is connected with the lower end of the second conical surface; the upper end of the first conical surface is close to the cutting hole; the second conical surface is connected with the second chip removal groove.

Preferably, the number of the second chip grooves is plural and circumferentially arranged on the cutting insert.

Preferably, the above further comprises a guide die; the guide die is positioned above the cutting blade at the uppermost layer, and is provided with a second positioning hole matched with the positioning piece; the guide die is also provided with a guide hole coaxial with the cutting hole, and the guide hole is used for passing through the workpiece and guiding the workpiece.

Preferably, the above further comprises a sizing die; the sizing die is positioned between the base and the cutting blade at the lowest layer; the shaping die is provided with a shaping hole coaxial with the cutting hole, and the shape and the aperture of the shaping hole are the same as those of the target workpiece; the sizing die is provided with a third positioning hole matched with the positioning piece.

Preferably, the mounting assembly comprises a first mounting seat and a second mounting seat which are detachably connected; the first mounting seat is used for being connected with an external driving device; the second mounting seat is detachably connected with the push rod; the external driving device drives the first mounting seat, the second mounting seat and the push rod to move along the axis of the push rod.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the mounting assembly is used for being connected with an external driving device, a workpiece is mounted on the push rod, the driving device drives the workpiece to feed towards a cutting hole on the cutting blade through the mounting assembly and the push rod, the cutting teeth on the cutting blade cut the outer side wall of the workpiece, and the cut scraps of the workpiece fall into the first chip removal groove and fall to the outer side of the cutting blade through the second chip removal groove. In the engineering that the inner diameter of each group of cutting holes is sequentially reduced from top to bottom and the push rod drives the workpiece to press down, the cutting teeth continuously cut the periphery of the workpiece until the workpiece moves to the position of the cutting blade at the lowest position, and the workpiece is processed to the shape and the size of the target workpiece. When the workpiece moves into the blanking hole, the workpiece can be taken out from the blanking hole or fall off. The locating piece is used for locating the cutting blade on the base, prevents that the push rod from driving the work piece to push down the process, and the work piece contacts the back with the cutting tooth, and the cutting blade takes place to deflect, influences cutting accuracy. The die-cut processing gear model cutter with the nano-coating can process all convex teeth of a workpiece at the same time, is convenient to operate and greatly improves the processing efficiency.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a die-cut gear model cutter with nano-coating according to an embodiment of the invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic view of the structure of a cutting insert according to an embodiment of the present invention.

Icon: 1. a mounting assembly; 11. a first mount; 12. a second mounting base; 1201. a mounting hole; 2. a push rod; 21. a connecting block; 22. a key body; 23. a mounting block; 3. a cutting insert; 301. cutting a hole; 302. a first junk slot; 3021. a first conical surface; 3022. a second conical surface; 303. a second junk slot; 304. a first positioning hole; 31. cutting teeth; 311. a cutting portion; 4. a base; 401. a blanking hole; 5. a positioning piece; 6. a workpiece; 7. a guide die; 701. a second positioning hole; 702. a guide hole; 8. shaping the mold; 801. shaping the hole; 802. and a third positioning hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the embodiments of the present invention, it should be noted that, if the azimuth or positional relationship indicated by the terms "inner", "outer", etc. appears to be based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, it is merely for convenience in describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, "plurality" means at least 2.

In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

The invention provides a die-cut processing gear model cutter with a nano-coating film, which refers to fig. 1-3 and comprises the following components: a mounting assembly 1 provided with a push rod 2 for mounting a workpiece 6, the workpiece 6 being coaxial with the push rod 2; a plurality of groups of cutting blades 3 stacked from top to bottom; each cutting blade 3 is provided with a cutting hole 301 coaxial with the push rod 2, the inner side wall of each cutting blade 3 is provided with a cutting tooth 31, and the inner diameters of each group of cutting holes 301 are sequentially reduced from top to bottom; a gap exists between the lower cutting tooth 31 and the upper adjacent cutting tooth 31 and forms a first junk slot 302; each set of cutting inserts 3 is provided with a second junk slot 303 in communication with the first junk slot 302, the second junk slot 303 extending radially through the cutting inserts 3; the shape and inner diameter of the lowermost cutting tooth 31 are the same as those of the target workpiece 6; a base 4 provided with a positioning piece 5 and a blanking hole 401; the blanking hole 401 is coaxial with the cutting hole 301, and the blanking hole 401 is used for the workpiece 6 to pass through; wherein each set of cutting inserts 3 is provided with a first positioning hole 304 cooperating with the positioning member 5.

In some embodiments, referring to fig. 1-3, the mounting assembly 1 may be connected to an external hydraulic press or punch press, the workpiece 6 is mounted on the push rod 2 and the workpiece 6 is coaxial with the push rod 2, the initial state of the workpiece 6 may be cylindrical, and the target workpiece 6 is a spur gear. The mounting assembly 1 brings the push rod 2 to feed into the cutting hole 301 in the cutting insert 3, the axis of the push rod 2 being coaxial with the cutting hole 301. The axis of the push rod 2 can be vertically arranged, the advancing direction of the push rod 2 can be from top to bottom, the cutting teeth 31 cut the periphery of the workpiece 6 from bottom to top, the waste scraps cut off by the workpiece 6 automatically drop on the upper end face of the cutting teeth 31, the waste scraps reenter the first chip groove 302, along with the descending of the push rod 2, the cutting waste scraps of the workpiece 6 enter from the first chip groove 302 on each layer of cutting blades 3, and the waste scraps generated before are pushed to move along the first chip groove 302 by the continuously increased waste scraps, and finally are discharged from the second chip groove 303. In the process of sequentially reducing the inner diameters of the cutting holes 301 in each group from top to bottom and driving the workpiece 6 to press down by the push rod 2, the cutting teeth 31 continuously cut the periphery of the workpiece 6 until the workpiece 6 moves to the position of the cutting blade 3 at the lowest position, and the workpiece 6 is processed to the shape and the size of the target workpiece 6. When the work piece 6 moves into the blanking hole 401, the work piece 6 can be taken out from the blanking hole 401 or dropped. The locating piece 5 on the base 4 is used for locating the cutting blade 3, so that the push rod 2 is prevented from driving the workpiece 6 to press down, and the cutting blade 3 deflects after the workpiece 6 contacts the cutting teeth 31, and the cutting precision is affected. The die-cut processing gear model cutter with the nano-coating can simultaneously process all convex teeth of the workpiece 6, is convenient to operate, and greatly improves the processing efficiency.

In some embodiments, referring to fig. 1-3, the number of cutting blades 3 may be 6, the number of cutting blades 3 may be set according to the cutting margin of the workpiece 6 being processed, that is, cutting scraps, and the greater the number of cutting blades 3, the greater the number of first junk slots 302 and second junk slots 303, the greater the cutting scraps that the cutting blades 3 can discharge.

In some embodiments, referring to fig. 1, a connecting block 21 is disposed at one end of the push rod 2 away from the mounting assembly 1, connecting holes matched with the connecting block 21 are disposed in the middle of the processed workpiece 6, a key slot communicated with the connecting holes can be further disposed on the workpiece 6, a key body 22 matched with the key slot is disposed on the connecting block 21, the workpiece 6 is inserted on the connecting block 21, the key body 22 is matched with the key slot, so that the installation of the workpiece 6 and the push rod 2 can be completed, and the workpiece 6 cannot rotate relative to the push rod 2 in the cutting process due to the matching of the key body 22 and the key slot. The outer diameter of the connecting block 21 is smaller than the body diameter of the push rod 2, so that when the cutting teeth 31 cut the workpiece 6 from bottom to top, the workpiece 6 cannot slide along the axial direction of the push rod 2. The engagement of the connection block 21 with the connection hole may be a clearance engagement, and when the workpiece 6 is located in the blanking hole 401 of the base 4, the workpiece 6 may automatically fall from the push rod 2 and fall out of the blanking hole 401.

In some embodiments, referring to fig. 1-3, the inner diameter surface of each set of cutting teeth 31 is a chamfer with an upper end that is closer to the axis of the cutting bore 301 than a lower end.

In detail, when the axis of the cutting insert 3 is arranged in the vertical direction, the cutting teeth 31 extend from bottom to top, and the inner diameter of the lower end of the cutting teeth 31 is smaller than the inner diameter of the upper end, so that the upper end of the inner side of the cutting teeth 31 forms a sharp corner, facilitating cutting of the workpiece 6. The inner diameter surface of the cutting tooth 31 is a slope, and the slope may be an arc surface or a flat slope. In some embodiments, the inner diameter surface of the cutting tooth 31 may be formed by combining two inclined surfaces with different inclination angles, wherein an included angle between the upper inclined surface and the axis of the cutting hole 301 is smaller than an included angle between the lower inclined surface and the axis of the cutting hole 301, the upper inclined surface is mainly used for cutting a workpiece, and the lower inclined surface has the function of guiding cutting scraps so as to enable the cutting scraps to conveniently enter the first chip groove 302. Experiments show that the cutting effect of the inner diameter surface of the cutting tooth 31 formed by combining the inclined surfaces with different inclination angles is good.

Referring to fig. 2, the cutting teeth 31 on each cutting blade 3 include a plurality of circumferentially arranged cutting portions 311, the cutting portions 311 are for cutting tooth slot portions of the workpiece 6, gaps exist between adjacent cutting portions 311 and are adapted to teeth of the workpiece 6, the number of cutting portions 311 is the same as the number of tooth slots of the target workpiece, and the shape of the cutting portions 311 is adapted to the tooth slot shape of the target workpiece.

In some embodiments, referring to fig. 2, the cutting portions 311 of the uppermost cutting insert 3 are connected as a unit to cut off the side wall of the workpiece 6 as a whole, so that the workpiece 6 is coaxial with the cutting hole 301. While a gap is provided between every two cutting portions 311 of the lower cutting insert 3 for engaging with the teeth of the workpiece 6.

In some embodiments, referring to fig. 2, the sidewall of the first junk slot 302 includes a first conical surface 3021 and a second conical surface 3022; the lower end of the first conical surface 3021 is connected with the lower end of the second conical surface 3022; the upper end of the first tapered surface 3021 is close to the cutting hole 301; the second conical surface 3022 is connected to the second junk slot 303.

In detail, the first tapered surface 3021 is disposed at an angle to the inner diameter surface of the cutting tooth 31 and forms a cutting bit. The first tapered surface 3021 may be a straight tapered surface, the second tapered surface 3022 may be an arc tapered surface, the radial length of the first tapered surface 3021 is greater than the radial length of the second tapered surface 3022, and the first chip groove 302 is mainly used for temporarily accommodating cutting chips.

In some embodiments, referring to fig. 3, the second junk slots 303 are plural in number and circumferentially arrayed on the cutting insert 3. The number of the second chip grooves 303, the height and the width of the second chip grooves 303 may be set according to the cutting allowance of the workpiece 6, the second chip grooves 303 may be rectangular grooves, and the bottom of the second chip grooves 303 may be parallel to the axial end face of the cutting insert 3.

In some embodiments, referring to fig. 1, a guide die 7 is also included; the guide die 7 is positioned above the cutting blade 3 at the uppermost layer, and the guide die 7 is provided with a second positioning hole 701 matched with the positioning piece 5; the guide die 7 is further provided with a guide hole 702 coaxial with the cutting hole 301, the guide hole 702 being for passing through the work piece 6 and guiding the work piece 6.

In detail, the side edge of the workpiece 6 can be machined by turning the tool before machining the workpiece 6, so that the side edge of the workpiece 6 is round and the eccentric situation can not occur. A guide hole 702 can be formed in the middle of the guide die 7, the push rod 2 drives the workpiece 6 to move towards the cutting hole 301, the workpiece 6 can firstly enter the guide hole 702, and the upper end of the guide hole 702 is subjected to chamfering treatment so that the workpiece 6 can enter. The side wall of the guide hole 702 is adapted to the workpiece 6, and the workpiece 6 is coaxial with the cutting hole 301 after the workpiece 6 enters the guide hole 702. The guide die 7 can be positioned by the positioning member 5 to prevent the guide die 7 from deflecting relative to the cutting insert 3 during insertion of the workpiece 6 into the guide hole 702.

In some embodiments, referring to fig. 1, a sizing die 8 is also included; the sizing die 8 is positioned between the base 4 and the cutting insert 3 at the lowest layer; the shaping die 8 is provided with a shaping hole 801 coaxial with the cutting hole 301, and the shape and the aperture of the shaping hole 801 are the same as those of the target workpiece 6; the sizing die 8 is provided with a third positioning hole 802 which cooperates with the positioning member 5.

In detail, the sizing die 8 is fixed between the cutting insert 3 and the base 4 by the positioning member 5. The shaping hole 801 is machined to be identical to the shape and outer diameter of the target workpiece 6, and the shaping die 8 is used for performing finish forging forming on the workpiece 6, so that the size of the workpiece 6 is accurate.

In some embodiments, referring to fig. 1, the positioning members 5 may be positioning pins, and the number of the positioning members 5 may be plural and circumferentially disposed around the blanking hole 401. One end of the positioning piece 5 is fixed on the base 4, the other end extends towards the mounting assembly 1 and is a free end, and the axis of the positioning piece 5 is parallel to the axis of the blanking hole 401. The first positioning hole 304, the second positioning hole 701 and the third positioning hole 802 can be hole-shaped, the first positioning hole 304 can be arranged at intervals with the second chip removing groove 303, the positioning piece 5 sequentially penetrates through the third positioning hole 802, the first positioning hole 304 and the second positioning hole 701 from bottom to top, and the installation and the disassembly of the guide die 7, the cutting blade 3, the sizing die 8 and the positioning piece 5 are simple and convenient.

In some embodiments, referring to fig. 1, the mounting assembly 1 includes a first mount 11 and a second mount 12 that are detachably connected; the first mounting seat 11 is used for being connected with an external driving device; the second mounting seat 12 is detachably connected with the push rod 2; the external driving device drives the first mounting seat 11, the second mounting seat 12 and the push rod 2 to move along the axis of the push rod 2.

In detail, the first mount 11 may be connected to an external hydraulic press or a punch press. The second mounting seat 12 may be provided with a mounting hole 1201, where the mounting hole 1201 is formed by axially connecting two through holes with different diameters, and the through hole with the larger diameter is close to the first mounting seat 11. The push rod 2 is provided with a mounting block 23 matched with the mounting hole 1201, the first mounting seat 11 and the second mounting seat 12 are separated from each other, and then the push rod 2 passes through the mounting hole 1201 so that the mounting block 23 is matched with the mounting hole 1201. The first mounting seat 11 may be provided with a threaded hole, the second mounting seat 12 may be provided with a through hole corresponding to the threaded hole, and a bolt penetrates through the second mounting seat 12 and is in threaded connection with the first mounting seat 11. The cross-sections of the mounting hole 1201 and the mounting block 23 may be polygonal, preventing the mounting block 23 from rotating within the mounting hole 1201.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. The utility model provides a die-cut processing gear model cutter of area nanometer coating film which characterized in that includes:

the installation assembly is provided with a push rod for installing a workpiece, and the workpiece is coaxial with the push rod;

a plurality of groups of cutting blades stacked from top to bottom; each cutting blade is provided with a cutting hole coaxial with the push rod, the inner side wall of each cutting blade is provided with cutting teeth, and the inner diameters of each group of cutting holes are sequentially reduced from top to bottom; a gap exists between the lower cutting tooth and the upper adjacent cutting tooth, and a first chip removing groove is formed; each group of the cutting blades is provided with a second chip groove communicated with the first chip groove, and the second chip grooves radially penetrate through the cutting blades; the shape and the inner diameter of the cutting teeth at the lowest part are the same as those of the target workpiece;

the base is provided with a positioning piece and a blanking hole; the blanking hole is coaxial with the cutting hole, and is used for a workpiece to pass through; wherein each group of cutting blades is provided with a first positioning hole matched with the positioning piece.

2. The nano-coated die-cut machined gear model cutter according to claim 1, wherein the inner diameter surface of each set of the cutting teeth is a bevel, and the upper end of the bevel is closer to the axis of the cutting hole than the lower end.

3. The nano-coated die-cut machined gear pattern tool of claim 1, wherein the sidewall of the first junk slot comprises a first conical surface and a second conical surface; the lower end of the first conical surface is connected with the lower end of the second conical surface; the upper end of the first conical surface is close to the cutting hole; the second conical surface is connected with the second chip removal groove.

4. The nano-coated die-cut machined gear pattern tool according to claim 1, wherein the number of second junk slots is plural and circumferentially arranged on the cutting insert.

5. The nano-coated die-cut machined gear pattern tool of claim 1, further comprising a guide die; the guide die is positioned above the cutting blade at the uppermost layer, and is provided with a second positioning hole matched with the positioning piece; the guide die is also provided with a guide hole coaxial with the cutting hole, and the guide hole is used for passing through the workpiece and guiding the workpiece.

6. The nano-coated die-cut machined gear pattern tool of claim 1, further comprising a sizing die; the sizing die is positioned between the base and the cutting blade at the lowest layer; the shaping die is provided with a shaping hole coaxial with the cutting hole, and the shape and the aperture of the shaping hole are the same as those of the target workpiece; the sizing die is provided with a third positioning hole matched with the positioning piece.

7. The nano-coated die-cut machined gear model cutter according to claim 1, wherein the mounting assembly comprises a first mount and a second mount that are detachably connected; the first mounting seat is used for being connected with an external driving device; the second mounting seat is detachably connected with the push rod; the external driving device drives the first mounting seat, the second mounting seat and the push rod to move along the axis of the push rod.