CN117124371B - Ultrasonic disc cutter and processing method thereof - Google Patents
Ultrasonic disc cutter and processing method thereof Download PDFInfo
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- CN117124371B CN117124371B CN202311395057.1A CN202311395057A CN117124371B CN 117124371 B CN117124371 B CN 117124371B CN 202311395057 A CN202311395057 A CN 202311395057A CN 117124371 B CN117124371 B CN 117124371B
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- 238000003672 processing method Methods 0.000 title claims abstract description 13
- 238000005520 cutting process Methods 0.000 claims abstract description 175
- 239000000835 fiber Substances 0.000 claims abstract description 78
- 239000002131 composite material Substances 0.000 claims abstract description 49
- 230000036346 tooth eruption Effects 0.000 claims abstract description 35
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000003754 machining Methods 0.000 claims description 56
- 238000005452 bending Methods 0.000 claims description 13
- 239000000463 material Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000033001 locomotion Effects 0.000 description 3
- 238000010008 shearing Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 2
- 239000004964 aerogel Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
- B26D1/12—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis
- B26D1/14—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a cutting member moving about an axis with a circular cutting member, e.g. disc cutter
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/08—Means for treating work or cutting member to facilitate cutting
- B26D7/086—Means for treating work or cutting member to facilitate cutting by vibrating, e.g. ultrasonically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
- B26D1/0006—Cutting members therefor
- B26D2001/006—Cutting members therefor the cutting blade having a special shape, e.g. a special outline, serrations
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- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
The application discloses an ultrasonic disc cutter and a processing method thereof, wherein the ultrasonic disc cutter comprises a cutter body, wherein a main cutting edge, a front cutter surface and a rear cutter surface are arranged on the cutter body; a plurality of cutting convex blocks are arranged on the front cutter surface and the rear cutter surface; the cutting convex blocks are uniformly distributed on the front cutter surface and the rear cutter surface, and the size parameters of the cutting convex blocks are in the same order of magnitude as those of the composite material fiber to be cut and are not smaller than those of the composite material fiber to be cut; the main cutting edge is fully provided with a plurality of cutting teeth, and each size of each cutting tooth is in the same order of magnitude as the size parameter of the composite material fiber to be cut and is not smaller than the size parameter of the composite material fiber to be cut; the cutting lug makes the cutter body surface uneven, and the fibre can not the cutter body structure take place large tracts of land adhesion, and the convex cutting lug can cut the fibre fast at the rotatory in-process of following the cutter body simultaneously, has further reduced the adhesion of fibre and cutter body, improves incision planarization, also avoids taking place to pull because of the adhesion is too strong, improves processingquality.
Description
Technical Field
The application relates to the technical field of cutter equipment, in particular to an ultrasonic disc cutter and a processing method thereof.
Background
With the development of manufacturing technology and the development of new materials, the processing requirements of all materials are difficult to be met by the traditional processing mode, the ultrasonic processing technology is a cutting mode of adding ultrasonic vibration on the basis of the traditional processing technology such as turning, milling, drilling and the like, and the ultrasonic cutting of a disc cutter shows better processing quality than the traditional processing when cutting soft and brittle materials such as paper-based honeycomb materials, aerogel and the like which take fibers as main bearing structures.
When processing the soft and brittle material with the fiber structure as the main bearing structure, the knife face and the knife edge of the disc knife are easy to be temporarily bonded with the fiber structure, and locking occurs when the bonding is serious, and the fiber structure of the processed part is torn due to the continuous rotation of the disc knife, so that the improvement of the processing quality is not facilitated.
Disclosure of Invention
The main aim of the application is to provide an ultrasonic disc cutter and a processing method thereof, which aim to solve the defect of poor processing quality in the prior art.
The application realizes the aim through the following technical scheme:
an ultrasonic disc cutter comprises a cutter body, wherein a main cutting edge, a front cutter surface and a rear cutter surface are arranged on the cutter body;
a plurality of cutting convex blocks, which are uniformly distributed on the front cutter surface and the rear cutter surface around the axis of the cutter body;
the size parameters of the cutting convex blocks are in the same order of magnitude as the size parameters of the composite material fibers to be cut, and are not smaller than the size parameters of the composite material fibers to be cut;
the cutting teeth are uniformly distributed on the main cutting edge around the axis of the cutter body;
the dimensions of each cutting tooth are in the same order of magnitude as the dimension parameter of the composite material fiber to be cut, and are not smaller than the dimension parameter of the composite material fiber to be cut.
Optionally, the rear cutter surface is located at the bottom surface of the cutter body, and the rear cutter surface is perpendicular to the axis of the cutter body; the front cutter face is of a conical surface structure, and the axis of the front cutter face is coincident with the axis of the cutter body; the upper side of the main cutting edge is connected with the rake surface, and the lower side is connected with the flank surface.
Optionally, the cutting protrusion is a protruding columnar structure, and the axis of the cutting protrusion is perpendicular to the surface of the cutting protrusion.
Optionally, the cutting protrusion has an elliptical structure; the height, width and length of the cutting protruding block are all in the same order of magnitude as the maximum diameter of the composite material fiber to be cut, and are not smaller than the size parameter of the composite material fiber to be cut.
Optionally, each cutting lug is radially arranged on the front cutter surface and the rear cutter surface, and two adjacent rows of cutting lugs are arranged in a staggered manner.
Optionally, the cutting teeth are in a zigzag structure, and the distance between any two adjacent cutting teeth is in the same order of magnitude as the maximum diameter of the composite material fiber to be cut and is not smaller than the dimension parameter of the composite material fiber to be cut.
Correspondingly, the application also discloses a processing method of the ultrasonic disc cutter, which comprises the following steps:
determining the size parameters of the cutting convex blocks and the size parameters of the cutting teeth according to the size parameters of the composite material fibers to be processed;
determining machining parameters of the cutting convex blocks according to the size parameters of the cutting convex blocks;
determining machining parameters of the cutting teeth according to the size parameters of the cutting teeth;
finishing the machining of the cutting convex block according to the machining parameters of the cutting convex block; and finishing machining the cutting teeth according to the machining parameters of the cutting teeth.
Optionally, determining the machining parameters of the cutting lug according to the size parameters of the cutting lug includes the following steps:
extracting dimension parameters of the cutting convex blocks, wherein the dimension parameters comprise depth, width and length of the cutting convex blocks;
setting the rotating speed of the ultrasonic disc cutterω r Determining the distance r between each cutting lug and the circle center of the cutter body 1 、r 2 、...、r i Wherein i represents the number of different distances;
calculating the longitudinal vibration amplitude of the machining tool according to the depth of the cutting convex block;
calculating bending vibration amplitude of the machining tool according to the length of the cutting convex block;
according to the width of the cutting convex blockw、Rotational speed of ultrasonic disc cutterω r And the distance r between the cutting convex block and the center of the cutter body i Determining longitudinal vibration amplitude and bending vibration amplitude of machining toolWeb of paperf。
Optionally, the depth of the cutting protrusion satisfies the following relationshipd= 0.5A l The method comprises the steps of carrying out a first treatment on the surface of the The length of the cutting convex block meets the following conditionsl= 0.5A e The method comprises the steps of carrying out a first treatment on the surface of the Cutting bump widthwSatisfy the following requirementsw= 0.5r*ω r /f。
Optionally, the machining of the cutting lug is completed according to the machining parameters of the cutting lug, including the following steps:
applying vibration frequency f and amplitude A to the machining tool in the direction perpendicular to the surface to be machined l Longitudinal vibration of (2); simultaneously, in the direction parallel to the surface to be processed and pointing to the rotation center, the vibration frequency of the processing cutter is f, and the amplitude is A e Bending vibration of (2);
according to the distance r between the cutting convex block and the circle center of the cutter body i Adjusting the working point position of the processing cutter;
according to the rotation speed omega r Controlling the rotation of a cutter body to be machined, and adjusting a machining cutter to finish machining of the cutting lug;
repeatedly according to the distance r between the cutting convex block and the circle center of the cutter body i And adjusting the working point positions of the machining tool to finish machining all the cutting convex blocks.
Compared with the prior art, the application has the following beneficial effects:
the cutter comprises a cutter body, wherein a main cutting edge, a front cutter surface and a rear cutter surface are arranged on the cutter body; a plurality of cutting convex blocks are arranged on the front cutter surface and the rear cutter surface; each cutting lug is uniformly fully distributed on the front cutter surface and the rear cutter surface, and meanwhile, each dimension parameter of each cutting lug is in the same order of magnitude as that of the composite material fiber to be cut and is not smaller than that of the composite material fiber to be cut; and a plurality of cutting teeth are fully distributed on the main cutting edge, and each size of each cutting tooth is in the same order of magnitude as the size parameter of the composite material fiber to be cut and is not smaller than the size parameter of the composite material fiber to be cut.
Since the size parameters of the cutting convex blocks are in the same order of magnitude as the size parameters of the composite material fibers to be cut, the size parameters of the composite material fibers to be cut are not smaller than the size parameters of the composite material fibers to be cut; simultaneously, the sizes of the cutting teeth and the size parameters of the composite material fibers to be cut are in the same order of magnitude and are not smaller than the size parameters of the composite material fibers to be cut;
therefore, in the cutting process, the protruding cutting convex blocks can shield the smooth front cutter surface and the smooth rear cutter surface, and meanwhile, the surfaces of the front cutter surface and the rear cutter surface are uneven, so that the fiber cannot be adhered to the smooth cutter body structure in a large area, the adhesion strength is limited, and meanwhile, the protruding cutting convex blocks can be used for rapidly shearing the fiber in a very short time in the process of rotating along with the cutter body at high speed, so that the adhesion between the fiber and the cutter body is further reduced, the flatness of a cut is improved, and meanwhile, the fiber is prevented from being pulled due to over-strong adhesion, and the processing quality is improved;
meanwhile, the size parameters of the cutting convex blocks and the size parameters of the fibers are in the same order, so that the height of the cutting convex blocks is limited, the fibers are cut in the area close to the fiber adhesion part as much as possible, a large amount of fiber residues are avoided, the flatness of the surface of the cutter is improved, and the cutting quality is improved;
meanwhile, due to the existence of the cutting teeth, the main cutting edge is not in a flat and round structure, so that the cutting teeth also provide high-strength radial shearing force in the working process, especially fibers adhered to a gap between two adjacent cutting teeth are rapidly cut off, and adhesion is avoided;
compared with the prior art, the ultrasonic disc cutter not only can reduce the bonding force between the fibers and the cutter body, but also can form a plurality of cutting points on the uneven surface, so that the adhered fibers are rapidly cut off, and the cutting quality of the ultrasonic disc cutter is improved.
Drawings
Fig. 1 is a schematic structural view of an ultrasonic disc cutter according to embodiment 1 of the present application;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is an enlarged view of portion B of FIG. 1;
fig. 4 is a flowchart of a processing method of an ultrasonic disc cutter according to embodiment 2 of the present application;
reference numerals: 1-cutter body, 2-main cutting edge, 3-rake face, 4-flank face, 5-cutting lug, 6-cutting tooth.
The realization of the objects, the functional characteristics and the advantages of the present application will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all 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 all directional indicators (such as upper and lower … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present invention, unless explicitly specified and defined otherwise, the terms "connected", "fixed", etc. should be construed broadly and the specific meaning of the above terms in the present invention will be understood to those skilled in the art according to the specific circumstances.
Embodiment 1
Referring to fig. 1 to 4, this embodiment, which is an alternative embodiment of the present application, discloses an ultrasonic disc cutter, comprising a cutter body 1, wherein the cutter body 1 comprises a disc-shaped connecting part and a cutting part, and the connecting part is connected with the cutting part through a conical transition part; the connecting part is used for connecting external driving equipment, and the dotted line in fig. 1 represents the axis of the cutter body;
the cutting part is an annular disc, the bottom surface of the cutting part is a rear cutter surface 4, a conical front cutter surface 3 is also arranged on the circumference of the cutting part, the circumference surface of the cutting part is a main cutting edge 2, and two sides of the main cutting edge 2 are respectively connected with the front cutter surface 3 and the rear cutter surface 4;
a plurality of cutting convex blocks 5 are arranged on the front cutter surface 3 and the rear cutter surface 4, and all the cutting convex blocks 5 are uniformly distributed on the front cutter surface 3 and the rear cutter surface 4 around the axis of the cutter body 1; meanwhile, each cutting lug 5 is of a convex columnar structure and protrudes outwards along the direction perpendicular to the surface of the cutting lug; thereby reducing the flatness of the rake face 3 and the relief face 4;
the cutting protrusion 5 is preferably of an oval configuration; the height, width and length of the cutting convex blocks 5 are in the same order of magnitude as the maximum diameter of the composite material fiber to be cut, and are not smaller than the size parameter of the composite material fiber to be cut;
each cutting lug 5 is radially arranged on the front cutter surface 3 and the rear cutter surface 4, and two adjacent rows of the cutting lugs 5 are arranged in a staggered manner;
through the arrangement, an S-shaped gap can be formed, an annular gap is avoided, and the fiber is ensured to be cut by a cutting block no matter where the fiber is adhered;
the main cutting edge 2 is also provided with a plurality of cutting teeth 6, and each cutting tooth is uniformly arranged around the axis of the cutter body 1; the cutting teeth 6 are of a sawtooth structure, and the distance between any two adjacent cutting teeth 6 is in the same order of magnitude as the maximum diameter of the composite material fiber to be cut and is not smaller than the dimension parameter of the composite material fiber to be cut.
Since the size parameters of the cutting projections 5 are in the same order of magnitude as the size parameters of the composite material fibers to be cut, and are not smaller than the size parameters of the composite material fibers to be cut; simultaneously, the sizes of the cutting teeth 6 are in the same order of magnitude as the size parameters of the composite material fibers to be cut, and are not smaller than the size parameters of the composite material fibers to be cut;
therefore, in the cutting process, the protruding cutting convex blocks 5 not only can shield the smooth front cutter surface 3 and the smooth rear cutter surface 4, but also can prevent the surface of the front cutter surface 3 and the surface of the rear cutter surface 4 from being uneven, so that the fiber can not be adhered to the structure of the smooth cutter body 1 in a large area, the adhesion strength is limited, and meanwhile, the protruding cutting convex blocks 5 can also shear the fiber rapidly in the process of rotating along with the cutter body 1 at a high speed, so that the adhesion between the fiber and the cutter body 1 is further reduced, the notch flatness is improved, and meanwhile, the pulling caused by the over-strong adhesion is avoided, and the processing quality is improved;
meanwhile, the size parameters of the cutting convex blocks 5 and the size parameters of the fibers are in the same order, so that the height of the cutting convex blocks 5 is limited, the fibers are cut in the area close to the fiber adhesion part as much as possible, a large amount of fiber residues are avoided, the flatness of the surface of the cutter is improved, and the cutting quality is improved;
meanwhile, due to the existence of the cutting teeth 6, the main cutting edge 2 is not in a flat and round structure any more, so that the cutting teeth 6 provide high-strength radial shearing force in the working process, especially fibers adhered to a gap between two adjacent cutting teeth 6 are rapidly cut off, and adhesion is avoided;
compared with the prior art, the ultrasonic disc cutter not only can reduce the bonding force between the fibers and the cutter body 1, but also can form a plurality of cutting points on the uneven surface, so that the adhered fibers are rapidly cut off, and the cutting quality of the ultrasonic disc cutter is improved.
Embodiment 2
This embodiment, as a further alternative embodiment of the present application, discloses a processing method of an ultrasonic disc cutter, including the following steps:
it should be noted that this embodiment will be described by taking a paper honeycomb composite material as an example;
s1, determining the size parameters of a cutting lug and the size parameters of cutting teeth according to the size parameters of the composite material fibers to be processed;
firstly, referring to the size parameter of the composite material fiber to be processed through technical data, wherein the size parameter of the composite material fiber to be processed refers to the maximum diameter value of the fiber;
the dimensional parameters of the paper honeycomb composite were found to be 3 μm in the examples;
the dimension parameters of each cutting lug are in the same order of magnitude as the dimension parameters of the composite material fiber to be cut and are not smaller than the dimension parameters of the composite material fiber to be cut, thus setting the depth of the cutting lugd=5 μm; length of cutting projectionl=5 μm; width of cutting projectionw= 5 μm；
It should be noted that the above dimensional parameters of the cutting projections may be other values, which may be the same or different, as long as they are of the same order of magnitude and are not less than the dimensional parameters of the composite fibers to be cut;
simultaneously, as the dimensions of the cutting teeth and the dimension parameters of the composite material fibers to be cut are in the same order of magnitude and are not smaller than the dimension parameters of the composite material fibers to be cut;
therefore, the length of the connecting line between two adjacent points of the adjacent cutting tooth tops is set to be 5 mu m, and the length of the connecting line between two sides of the bottom of each cutting tooth is set to be 5 mu m;
s2, determining machining parameters of the cutting convex block according to the size parameters of the cutting convex block;
s21, extracting size parameters of the cutting convex blocks, wherein the size parameters comprise depth, width and length of the cutting convex blocks;
extracting various dimension parameters in the step S1, including depth of the cutting convex blockd=5 μm; length of cutting projectionl=5 μm; width of cutting projectionw= 5 μm；
S22, setting the rotating speed of the ultrasonic disc cutterω r (rad/s) determining the distance r between each cutting lug and the centre of the cutter body 1 、r 2 、...、r i Wherein i represents the number of different distances;
setting the rotating speed of the ultrasonic disc cutter in the processing process according to the actual working conditionω r (rad/s), in the example set the rotational speed of the ultrasonic disc bladeω r =0.2rad/s；
Because the rear cutter surface is of an annular structure, and the projection of the front cutter surface in the vertical direction is also annular, the cutting convex blocks are also arranged layer by layer according to the annular structure, and meanwhile, along the radial direction, the cutting blocks are radially arranged;
the distance from the machining point of each cutting lug positioned on the same layer to the axis of the cutter is the same; the distance is the distance r between the cutting convex block and the center of the cutter body 1 、r 2 、...、r i Wherein i represents the number of different distances;
s23, calculating the longitudinal vibration amplitude of the machining tool according to the depth of the cutting convex block;
the depth of the cutting convex block satisfies the following relationd= 0.5A l The method comprises the steps of carrying out a first treatment on the surface of the The depth parameter obtained in the step S21 is carried into the formula to calculate and obtain the longitudinal vibration amplitudeA l ；
S24, calculating bending vibration amplitude of the machining tool according to the length of the cutting convex block;
the length of the cutting convex block meets the following conditionsl= 0.5A e The method comprises the steps of carrying out a first treatment on the surface of the The length parameter obtained in the step S21 is put into the formula to calculate the bending vibration amplitudeA e ；
S25, according to the width of the cutting convex blockw、Rotational speed of ultrasonic disc cutterω r And the distance r between the cutting convex block and the center of the cutter body i Determining longitudinal vibration amplitude and bending vibration amplitude of machining toolf。
The cutting lug widthwSatisfy the following requirementsw= 0.5r*ω r /fThe rotating speed of the ultrasonic disc knife set in the step S22 is setω r And the distance r between the cutting convex block and the center of the cutter body i Bringing into the above formula to obtain longitudinal vibration amplitude and bending vibration amplitudef 1 、f 2 、...、f i ；
From the amplitude parameters, once the distance between the cutting convex block and the center of the cutter body changes, the amplitude also changes, so that the processing requirements of different bits are met;
s3, determining machining parameters of the cutting teeth according to the size parameters of the cutting teeth;
the machining of the cutting teeth adopts common fly-cutting machining, and corresponding technical parameters are set according to the size parameters of the cutting teeth;
s4, finishing machining of the cutting convex block according to the machining parameters of the cutting convex block; finishing machining of the cutting teeth according to machining parameters of the cutting teeth;
s41, according to the distance r between the cutting convex block and the circle center of the cutter body i Adjusting the working point position of the processing cutter;
s42, applying vibration frequency f (Hz) and amplitude A to the processing tool in the direction perpendicular to the surface to be processed l Longitudinal vibration of (2); simultaneously, in the direction parallel to the surface to be processed and pointing to the rotation center, the vibration frequency of the processing tool is f (Hz), and the amplitude is A e Bending vibration of (2);
according to the processing point position, the corresponding parameters are called from the amplitude parameters obtained in the step S25, the vibration frequency f (Hz) is applied to the processing tool in the direction perpendicular to the surface to be processed, and the amplitude is A l Longitudinal vibration of (2); simultaneously, in the direction parallel to the surface to be processed and pointing to the rotation center, the vibration frequency of the processing tool is f (Hz), and the amplitude is A e Bending vibration of (2);
s43, according to the rotation speed omega r Controlling the rotation of a cutter body to be machined, and adjusting a machining cutter to finish machining of the cutting lug;
according to the rotational speed parameter omega set in step S22 r Controlling the rotation of a cutter body to be machined, and adjusting a machining cutter to finish machining of the cutting lug;
s44, repeatedly according to the distance r between the cutting convex block and the circle center of the cutter body i And adjusting the working point positions of the machining tool to finish machining all the cutting convex blocks.
At a distance r i After the machining of the cutting tool, a distance parameter is fetched, the machining tool is adjusted to the corresponding machining point position, and the machining of all the cutting lugs is completed by repeating the steps.
S45, the machining parameters in the step S3 are coincidentally used, and machining operation of the cutting teeth is completed on the main cutting edge by adopting a fly cutting machining method.
Compared with the prior art, the method and the device realize rapid processing of the cutting lug by combining the combined motion of bending vibration and mass vibration and the rotary motion of the cutter head, so that the processing molding quality is ensured;
the foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.
Claims (8)
1. The processing method of the ultrasonic disc cutter is characterized in that the ultrasonic disc cutter comprises a cutter body (1), and a main cutting edge (2), a front cutter surface (3) and a rear cutter surface (4) are arranged on the cutter body (1);
a plurality of cutting convex blocks (5), wherein all the cutting convex blocks (5) are uniformly distributed on the front cutter surface (3) and the rear cutter surface (4) around the axis of the cutter body (1);
the size parameters of the cutting convex blocks (5) are in the same order of magnitude as the size parameters of the composite material fibers to be cut, and are not smaller than the size parameters of the composite material fibers to be cut;
a plurality of cutting teeth (6), each cutting tooth (6) is uniformly distributed on the main cutting edge (2) around the axis of the cutter body (1);
the dimensions of the cutting teeth (6) are in the same order of magnitude as the dimension parameters of the composite material fibers to be cut, and are not smaller than the dimension parameters of the composite material fibers to be cut;
the processing method comprises the following steps:
determining the size parameters of the cutting convex blocks (5) and the size parameters of the cutting teeth (6) according to the size parameters of the composite material fibers to be processed;
determining machining parameters of the cutting convex blocks (5) according to the size parameters of the cutting convex blocks (5);
extracting dimension parameters of the cutting lug (5), wherein the dimension parameters comprise depth, width and length of the cutting lug (5);
setting ultrasonic disc cutterRotational speed omega r Determining the distance r between each cutting lug (5) and the center of the cutter body (1) 1 、r 2 、...、r i Wherein i represents the number of different distances;
calculating the longitudinal vibration amplitude of the machining tool according to the depth of the cutting convex block (5);
calculating the bending vibration amplitude of the processing tool according to the length of the cutting convex block (5);
according to the width w of the cutting convex block (5), the rotating speed omega r of the ultrasonic disc cutter and the distance r between the cutting convex block (5) and the circle center of the cutter body (1) i Determining the longitudinal vibration amplitude and the bending vibration amplitude f of a machining tool;
finishing the machining of the cutting lug (5) according to the machining parameters of the cutting lug (5);
and finishing the machining of the cutting tooth (6) according to the connecting line length between two adjacent points of the adjacent cutting tooth tops and the connecting line length between two sides of the bottom of the cutting tooth.
2. The processing method of the ultrasonic disc cutter according to claim 1, wherein the rear cutter surface (4) is positioned on the bottom surface of the cutter body (1), and the rear cutter surface (4) is perpendicular to the axis of the cutter body (1); the front cutter surface (3) is in a conical surface structure, and the axis of the front cutter surface (3) is coincident with the axis of the cutter body (1); the upper side of the main cutting edge (2) is connected with the rake surface (3), and the lower side is connected with the flank surface (4).
3. The processing method of the ultrasonic disc cutter according to claim 1, wherein the cutting protrusion (5) is a protruding columnar structure, and the axis of the cutting protrusion (5) is perpendicular to the surface of the cutting protrusion.
4. A method of machining an ultrasonic disc cutter according to claim 3, wherein the cutting projections (5) are of an oval configuration; the height, width and length of the cutting convex blocks (5) are in the same order of magnitude as the maximum diameter of the composite material fiber to be cut, and are not smaller than the size parameter of the composite material fiber to be cut.
5. The method for machining an ultrasonic disc cutter according to claim 4, wherein each cutting protrusion (5) is radially disposed on the rake face (3) and the flank face (4), and two adjacent rows of the cutting protrusions (5) are disposed in a staggered manner.
6. The processing method of the ultrasonic disc cutter according to claim 1, wherein the cutting teeth (6) are in a zigzag structure, and the distance between any two adjacent cutting teeth (6) is in the same order of magnitude as the maximum diameter of the composite material fiber to be cut and is not smaller than the dimension parameter of the composite material fiber to be cut.
7. A method of machining an ultrasonic disc cutter according to claim 1, characterized in that the depth of the cutting protrusion (5) satisfies the following relation d = 0.5 Al; the length of the cutting protrusion (5) satisfies l=0.5 Ae; the cutting protrusion (5) width w satisfies w=0.5 r ×ω r /f。
8. The method of machining an ultrasonic disc cutter according to claim 1, characterized in that the machining of the cutting protrusion (5) is done according to the machining parameters of the cutting protrusion (5), comprising the steps of:
applying longitudinal vibration with the vibration frequency f and the amplitude Al to the processing cutter in the direction perpendicular to the surface to be processed; meanwhile, bending vibration with the vibration frequency f and the amplitude Ae is applied to the processing cutter in the direction parallel to the surface to be processed and pointing to the rotating circle center;
adjusting the working point position of the processing cutter according to the distance ri between the cutting convex block (5) and the circle center of the cutter body (1);
according to the rotation speed omega r Controlling the rotation of a cutter body (1) to be machined, and adjusting a machining cutter to finish machining of the cutting lug (5);
and repeating the step of adjusting the working point position of the processing cutter according to the distance ri between the cutting convex blocks (5) and the circle center of the cutter body (1), and finishing the processing of all the cutting convex blocks (5).
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