CN115889868B - Two-edged milling cutter and camera assembly processing method - Google Patents
Two-edged milling cutter and camera assembly processing method Download PDFInfo
- Publication number
- CN115889868B CN115889868B CN202210916969.8A CN202210916969A CN115889868B CN 115889868 B CN115889868 B CN 115889868B CN 202210916969 A CN202210916969 A CN 202210916969A CN 115889868 B CN115889868 B CN 115889868B
- Authority
- CN
- China
- Prior art keywords
- cutting
- chamfer
- groove
- milling cutter
- edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000003801 milling Methods 0.000 title claims abstract description 87
- 238000003672 processing method Methods 0.000 title abstract description 6
- 238000005520 cutting process Methods 0.000 claims abstract description 166
- 230000002093 peripheral effect Effects 0.000 claims description 30
- 238000000034 method Methods 0.000 abstract description 27
- 238000005299 abrasion Methods 0.000 abstract description 8
- 238000001125 extrusion Methods 0.000 abstract description 8
- 238000003754 machining Methods 0.000 description 29
- 239000000463 material Substances 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000007769 metal material Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Landscapes
- Milling Processes (AREA)
Abstract
The invention discloses a two-edge milling cutter and a camera component processing method, wherein the two-edge milling cutter comprises a rod-shaped body; the rod-shaped body is divided into a cutting section and a cutter handle, a cutting part is arranged at the bottom end of the cutting section, an empty-avoiding groove is formed between the cutting parts, and a chip removing groove is formed in the back of the cutting part from the bottom of the empty-avoiding groove to the direction of the cutter handle. In order to facilitate rapid chip removal in the operation process of the cutting parts, the two cutting parts can be symmetrical relative to the axis of the rod-shaped body, and a clearance groove is formed between the two cutting parts. In the operation process of the cutting part, the cutting edge of the cutting part continuously mills the blank plate, and flying scraps are formed at the cutting edge part. The flying chips can enter the clearance groove and then enter the two chip removing grooves, are discharged rapidly, avoid the mutual extrusion of a large number of flying chips between the two cutting parts, effectively solve the phenomenon of cutter abrasion, enable the preliminary shape precision of the machined camera component to meet the requirements, and improve the surface quality of a workpiece (the camera component).
Description
Technical Field
The invention relates to the technical field of cutters, in particular to a two-edge milling cutter and a camera component processing method.
Background
A cutting tool is a tool used for cutting machining in machine manufacturing, and since tools used in machine manufacturing are basically all used for cutting a metal material, such tools are metal cutting tools, wherein a milling cutter is a rotary tool for milling machining having one or more cutter teeth. When in operation, each cutter tooth cuts off the allowance of the workpiece intermittently in sequence. Milling cutters are mainly used for machining planes, steps, grooves, forming surfaces, cutting workpieces, etc. on milling machines. The end mill is one of metal cutting tools, and is the most commonly used one on numerical control machines, and the end mill has cutting edges on both the cylindrical surface and the end face, and can cut simultaneously or separately. The applicant of the present application found that when machining a camera assembly, the traditional milling machine tool had insufficient chip removal space, which easily resulted in chip extrusion, damaged the surface quality of the workpiece, and reduced the tool life.
Disclosure of Invention
The invention aims to provide a two-edge milling cutter, which solves the technical problems that when a camera component is machined, the traditional milling machine cutter has insufficient chip removal space, chip extrusion is easy to generate, the surface quality of a workpiece is damaged, and the service life of the cutter is reduced.
In order to achieve the above purpose, the invention provides the following technical scheme: two-edge milling cutter, two-edge milling cutter is applied to camera subassembly processing, the camera subassembly includes radius structure and periphery, disposable machine-shaping radius structure and periphery, two-edge milling cutter includes:
A rod-like body; the rod-shaped body is divided into a cutting section and a cutter handle, wherein the free end of the cutting section is set to be the bottom end, the free end of the cutter handle is set to be the top end, and the top end is used for being connected with a milling machine;
the bottom end of the cutting section is provided with a cutting part, the cutting part is symmetrical relative to the axis of the rod-shaped body, a clearance groove is formed between the cutting parts, and a chip removing groove is formed in the back surface of the cutting part from the bottom of the clearance groove to the direction of the cutter handle;
the cutting part and the chip removing grooves are respectively provided with two chip removing grooves which are symmetrical relative to the axis of the rod-shaped body and are not communicated with each other; in the axial direction of the rod-shaped body, the cross section of the cutting part is of a step structure, the step structure is set to sequentially comprise a cutting edge surface, an end surface and a bottom surface from the bottom of the cutting part to the bottom of the clearance groove, the side wall surface of the clearance groove between the cutting edge surface and the end surface is a peripheral surface, a first chamfer is arranged at the connecting position between the peripheral surface and the end surface, and the first chamfer is used for generating flying chips;
A second chamfer is further arranged between the peripheral surface and the end surface, the second chamfer is used for removing chips, and the peripheral surface, the first chamfer, the second chamfer and the end surface are sequentially connected; the radius size range of the first chamfer is 0.05 mm-0.09 mm; and/or the clearance groove is in a round hole shape, the diameter size range of the clearance groove is 4mm-8mm, and the depth size range of the clearance groove is 1mm-2mm.
Further, the radius of the second chamfer is 8-12 times of the radius of the first chamfer.
The angle of the cutting edge of the cutting part is 0 degree.
Further, a first relief angle and a second relief angle are formed between the end edge of the cutting part and the wall of the clearance groove, the angle range of the first relief angle is 6-8 degrees, and the angle range of the second relief angle is 18-20 degrees.
Compared with the prior art, the application has the following technical effects: the whole two-edge milling cutter is a rod-shaped body, the rod-shaped body is provided with a cutting section and a cutter handle, the top end of the cutter handle is used for being connected with a milling machine, and the bottom end of the cutting section is provided with a cutting part. The cutting part is used for milling a blank plate required by the camera assembly, and the blank plate is mainly made of metal materials. For rapid formation of the camera head assembly shape, two cutting parts may be provided at the bottom of the cutting section, the two cutting parts being symmetrical with respect to the axis of the stick, the rotation directions of the two cutting parts 11 being identical, and may be left-handed or right-handed, so as to shape the periphery of the cylinder. The two cutting portions cut the blank sheet material when the cutting portions cut the blank sheet material. Specifically, the cutting section feeds a blank plate with a preset track according to a feed program preset by CNC, mills the blank plate through the cutting part, and cuts a cylinder out of the peripheral edge of the cutting part to form the preliminary shape of the camera component. In order to facilitate rapid chip removal during the operation of the cutting portions during milling, the two cutting portions may be symmetrical with respect to the axis of the rod-shaped body, and a clearance groove may be provided between the two cutting portions. In the operation process of the cutting part, the cutting edge of the cutting part continuously mills the blank plate, and flying scraps are formed at the cutting edge part. The flying chips can enter the empty avoidance groove and then enter the two chip removal grooves, are rapidly discharged, avoid the mutual extrusion of a large number of flying chips between the two cutting parts, effectively solve the phenomenon of cutter abrasion, avoid the phenomenon that the extruded chips damage the surface smoothness of the cutter, ensure that the primary shape precision of the machined camera assembly meets the requirements, and improve the surface quality of a workpiece (the camera assembly).
It is worth mentioning that two chip removing grooves are formed in the back surfaces of the two cutting parts from the bottom of the empty avoiding groove to the direction of the cutter handle. The chip removing device aims at facilitating chip removal in the cutting process, each cutting part continuously cuts the blank plate in the milling process, and the flying chips milled by the cutting parts can move along the chip removing grooves towards the cutter handle, so that a plurality of flying chips are prevented from remaining on the cutting parts.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings that are needed in the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of a two-edge milling cutter according to an embodiment of the present invention;
fig. 2 is a schematic view of a two-bladed milling cutter according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at M;
Fig. 4 is a schematic view of a structure of a two-edge milling cutter according to an embodiment of the present invention;
FIG. 5 is a schematic view of a cutting segment of a two-edge milling cutter according to an embodiment of the present invention;
FIG. 6 is a schematic view of a camera assembly process according to an embodiment of the invention;
FIG. 7 is a schematic view of a camera assembly process according to an embodiment of the invention;
FIG. 8 is a flow chart of an example of a method of processing a camera assembly according to an embodiment of the invention;
FIG. 9 is a flow chart of an example of a method of processing a camera assembly according to an embodiment of the invention;
Fig. 10 is a flow chart illustrating an example of a method of processing a camera module according to an embodiment of the invention.
Reference numerals:
100. Two-edge milling cutter; 10. a cutting segment; 11. a cutting portion; 111. an end face; 112. a peripheral surface; 113. an end blade; 200. a camera assembly; 210. a rounded structure; 220. a periphery; A. an empty-avoiding groove; B. chip removing grooves; D. the diameter size of the clearance groove; H. the depth dimension of the void-avoidance groove; r1, a first chamfer; r2, a second chamfer; a. cutting edge angle; b. a first relief angle; c. second relief angle
Detailed Description
The following description of the embodiments of the invention will be made more clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the invention. All other embodiments, based on the embodiments of the invention, which would be apparent to one of ordinary skill in the art without inventive effort are within the scope of the invention.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicators are changed accordingly.
It will also be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Furthermore, the description of "first," "second," etc. in the present invention is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed by the invention.
Referring to fig. 1 and 8, a detailed description will be given of a technical solution according to an embodiment of the present application with reference to the accompanying drawings.
A cutting tool is a tool used for cutting machining in machine manufacturing, and since tools used in machine manufacturing are basically all used for cutting a metal material, such tools are metal cutting tools, wherein a milling cutter is a rotary tool for milling machining having one or more cutter teeth. When in operation, each cutter tooth cuts off the allowance of the workpiece intermittently in sequence. Milling cutters are mainly used for machining planes, steps, grooves, forming surfaces, cutting workpieces, etc. on milling machines.
The end mill is one of metal cutting tools, and is the most used one in numerical control machines, and has cutting edges on both the cylindrical surface and the end face 111, and can cut simultaneously or individually.
The applicant of the present application has found that when machining the camera head assembly 200, the conventional milling machine tool has insufficient chip removal space, which is prone to chip extrusion, damage the surface quality of the workpiece, and reduce the tool life.
In view of this, the present application provides a two-edge milling cutter 100 to solve the technical problems that the conventional milling machine tool has insufficient chip removal space, is easy to generate chip extrusion, damages the surface quality of the workpiece, and reduces the service life of the tool when the camera assembly 200 is processed.
Referring to fig. 1 and 3, a first two-edge milling cutter 100 according to the present application, the two-edge milling cutter 100 comprises:
a rod-like body; the rod-shaped body is divided into a cutting section 10 and a cutter handle, wherein the free end of the cutting section 10 is set as the bottom end, the free end of the cutter handle is set as the top end, and the top end is used for being connected with a milling machine;
The bottom of the cutting section 10 is provided with a cutting part 11, the cutting part 11 is symmetrical relative to the axis of the rod-shaped body, a clearance groove A is formed between the cutting parts 11, and a chip removing groove B is formed in the back surface of the cutting part 11 from the bottom of the clearance groove A to the direction of the cutter handle.
The two-edge milling cutter 100 of the present application can be used for producing metal appearance parts for processing 3C consumer electronic products. In the conventional metal part product, the processing control is focused on dimensional accuracy, burrs and the like, and the metal appearance part of the electronic product is the camera assembly 200.
In the two-edge milling cutter 100 according to the present embodiment, the entire two-edge milling cutter 100 is a rod-shaped body having a cutting segment 10 and a shank, the top end of the shank is used for connecting with a milling machine, and the bottom end of the cutting segment 10 is provided with a cutting portion 11. It is understood that the number of the cutting portions 11 may be plural, and is not limited herein. The cutting portion 11 is used to mill a blank sheet material, which is mainly a metal material, required for the camera head assembly 200. For rapid formation of the camera head assembly 200 shape, two cutting portions 11 may be provided at the bottom of the cutting segment 10, the two cutting portions 11 being symmetrical with respect to the axis of the stick, the rotation directions of the two cutting portions 1111 being identical, either left-handed or right-handed, to facilitate formation of the cylindrical periphery 220. The two cutting portions 11 cut the blank sheet material, and the cutting portions 11 cut the blank sheet material. Specifically, the cutting segment 10 feeds a blank plate material with a preset track according to a feed program preset by CNC, and mills the blank plate material through the cutting portion 11, and the peripheral edge of the cutting portion 11 cuts a cylinder to form a preliminary shape of the camera assembly 200. In order to facilitate rapid chip removal during operation of the cutting portions 11 during milling, the two cutting portions 11 may be symmetrical about the axis of the rod-shaped body, with a clearance groove a being provided between the two cutting portions 11. During operation, the cutting edge of the cutting portion 11 continuously mills the blank plate, and flying chips are formed at the edge portion. The flying chips can enter the clearance groove A and then enter the two chip removing grooves B, are discharged quickly, avoid the mutual extrusion of a large number of flying chips between the two cutting parts 11, effectively solve the problem of cutter abrasion, avoid the phenomenon that the extruded chips damage the surface smoothness of the cutter, ensure that the primary shape precision of the machined camera assembly 200 meets the requirements, and improve the surface quality of a workpiece (the camera assembly 200).
It should be noted that, from the bottom of the clearance groove a to the direction of the tool shank, two chip-removing grooves B are provided on the back surfaces of the two cutting portions 11. The purpose is in order to be convenient for the cutting process to carry out the chip removal, and every cutting portion 11 is in the in-process of milling operation, and the flying chip that is milled by cutting portion 11 can remove to the handle of a knife direction along moving away bits groove B, avoids a plurality of flying chip to remain on cutting portion 11, leads to the blade temperature of cutting portion 11 too high.
As shown in fig. 2-3, the chip removing grooves B are symmetrical with respect to the axis of the rod-shaped body, and the chip removing grooves B are not communicated with each other. In this embodiment, the two chip removing grooves B are not connected with each other, so that the blank plate can be continuously cut by each cutting portion 11 in the milling process, the chips milled by the cutting portions 11 can move along the chip removing grooves B towards the cutter handle, the chips between the two chip removing grooves B can not be accumulated with each other, a plurality of chips are prevented from remaining on the cutting portions 11, the cutting edge temperature of the cutting portions 11 is prevented from being too high, the surface quality of a workpiece is ensured, and the service life of a cutter is prolonged.
Referring to fig. 4 and 5, for example, in the axial direction of the rod-shaped body, the cross-sectional shape of the cutting portion 11 is a stepped structure (not labeled in the drawing), and the stepped structure is configured to have a blade surface (not labeled in the drawing), an end surface 111, and a bottom surface (not labeled in the drawing) in this order from the bottom of the cutting portion 11 to the bottom of the clearance groove a, and the sidewall surface of the clearance groove a is a peripheral surface 112, and a first chamfer R1 is provided at a connection position between the peripheral surface 112 and the end surface 111.
For the dimensional requirements of the camera, the general precision tolerance requirement is within 0.006mm so as to achieve the technical requirements of special waterproof grade and the like, and the camera has special requirements on appearance.
Because the camera module has the arc requirement of 0.06mm radius, the camera module is manufactured according to the existing processing mode, and the arc precision size of 0.06mm radius is difficult to ensure.
It should be noted that, in machining the camera module 200, the applicant has found that the conventional milling cutter is required to sequentially machine the outer circumferential wall of the camera (i.e., the periphery 220 of the present application), the end surface plane, and the circular arc connecting the outer circumferential wall and the end surface (i.e., the rounded structure 210 of the present application). After the cutter is molded once during processing, the plane of the primary end is processed again, the outer circular wall and the connected circular arc are molded once, and the efficiency is improved; meanwhile, the side wall and the circular arc are connected and formed in one step, and compared with the traditional cutter for sequentially machining and forming, the product obtained by the method for forming in one step is better in consistency. The point of contradiction is also mainly in efficiency and product consistency.
The two-edge milling cutter 100 according to the present application improves the machining efficiency and the product consistency, but in order to avoid the blockage of chips caused by unsmooth chip removal, thereby affecting the surface quality of the product and the service life of the cutter, the first chamfer R1 and the second chamfer R2 are provided, wherein the first chamfer R1 is used for machining an arc connecting the outer circular wall and the end plane, and the second chamfer R2 is used for chip removal design.
Specifically, in this embodiment, a first chamfer R1 may be disposed between the end surface 111 and the peripheral surface 112, so that the rounded structure 210 of the camera assembly 200 is machined by using the first chamfer R1 during the milling operation of the cutting portion 11;
Secondly, because the two-edge milling cutter 100 of the application processes the blank plate in an insert milling mode, the first chamfer R1 can finish the periphery 220 and the rounding structure 210 of the camera assembly 200 with one-time processing, and the cutter abrasion loss is small, so that the smooth and stable performance of the connection between the rounding structure 210 and the periphery 220 is well ensured.
Illustratively, a second chamfer R2 is further disposed between the peripheral surface 112 and the end surface 111, and the peripheral surface 112, the first chamfer R1, the second chamfer R2, and the end surface 111 are sequentially connected.
In conventional processes for machining the camera head assembly 200, a blank sheet is generally machined from the periphery 220, then machined from the end face 111, and finally machined into the rounded structure 210. This traditional processing method has 3 disadvantages:
① Because the two sides of the rounded structure 210 are respectively connected with the periphery 220 and the end surface 111, when the periphery 220 and the end surface 111 are processed, the cutter wear amount is inconsistent, and the connection position with the rounded structure 210 is not smooth or inconsistent;
② When the rounding structure 210 is processed, the dimension of the rounding structure 210 is too small, and the included angle between two sides is only 90 degrees, so that the chip removal space is insufficient, chip squeezing phenomenon is easy to occur, the surface quality of a workpiece is damaged, and the service life of a cutter is reduced;
③ The whole processing technology needs three steps to be completed, the processing route is longer, and the processing time is longer.
In view of this, the present application is configured such that the second chamfer R2 is provided between the outer peripheral surface 112 and the end surface 111, and the outer peripheral surface 112, the first chamfer R1, the second chamfer R2, and the end surface 111 are connected in this order. In the milling operation process of each cutting part 11, the blank plate is continuously cut, the flying chips milled by the cutting parts 11 can move towards the cutter handle along the chip removing grooves B, the flying chips between the two chip removing grooves B can not be mutually accumulated, a plurality of flying chips are prevented from remaining on the cutting parts 11, the cutting edge temperature of the cutting parts 11 is prevented from being too high, the surface quality of a workpiece is ensured, and the service life of a cutter is prolonged. The first chamfer R1 can finish the periphery 220 and the rounding structure 210 with one-time processing, and the cutter abrasion loss is small, so that the smooth and stable performance of the connection between the rounding structure 210 and the periphery 220 is well ensured.
After the machining is finished, the second rounding part (not shown in the figure) is milled, so that the condition that the machining precision of the first rounding part (not marked in the figure) is not satisfied can be avoided, and secondly, the first rounding part with the dimensional precision tolerance within 0.006mm can be easily machined in the process of milling the second rounding part.
It will be appreciated that a standard end mill may be selected for milling the second rounded portion and/or the peripheral surface 112.
For example, camera assembly 200 is machined using a standard end mill. During machining, the shank rotates and moves in a circular motion, and a cylinder is cut by the outer peripheral edge of the cutting portion 11.
Illustratively, the radius of the first chamfer R1 ranges from 0.05mm to 0.09mm. In this embodiment, in order to facilitate the first rounded portion with a dimensional accuracy tolerance of 0.006mm or less at the machining site, the radius dimension range of the first chamfer R1 is defined to be 0.05mm to 0.09mm.
Illustratively, the radius of the second chamfer R2 is 8-12 times the radius of the first chamfer R1. In this embodiment, since the periphery 220 of the camera assembly 200 and the rounded structure 210 are completed in one pass by the plunge milling method, the radius size of the second chamfer R2 is defined to be 8-12 times that of the first chamfer R1, in the milling process of each cutting portion 11, the blank plate is continuously cut, and the flying scraps generated at the position of the first chamfer R1 can be discharged through the space where the second chamfer R2 is located, so that the problem of chip extrusion is effectively solved, and meanwhile, the flying scraps are prevented from being accumulated on the cutting portion 11, the temperature of the cutting edge of the cutting portion 11 is prevented from being too high, the surface quality of a workpiece is ensured, and the service life of a cutter is improved. The first chamfer R1 can finish the periphery 220 and the rounding structure 210 with one-time processing, and the cutter abrasion loss is small, so that the smooth and stable performance of the connection between the rounding structure 210 and the periphery 220 is well ensured.
Illustratively, the cutting angle a of the cutting portion 11 is 0 degrees. In this embodiment, the cutting portion 11 has a blade in the vertical direction, and the angle between the blade and the axis of the shank is a blade angle a, which is defined as 0 degrees, so that the periphery 220 of the camera head assembly 200 can be cut and machined quickly.
Illustratively, a first relief angle b and a second relief angle c are formed between the end edge 113 of the cutting portion 11 and the groove wall of the clearance groove a, wherein the angle of the first relief angle b ranges from 6 degrees to 8 degrees, and the angle of the second relief angle b ranges from 18 degrees to 20 degrees. In this embodiment, the present application defines the angle range of the first relief angle b as 6 degrees to 8 degrees, and the portion is the rear cutting edge surface of the main cutting edge of the two-edge milling cutter 100, for cutting scrap iron and meeting the workpiece size requirement; the second relief angle b is defined to be in the range of 18-20 degrees, and the condition that the relief angle is higher than the cutting edge due to the insufficient angle when the first relief angle b is cut is avoided.
Illustratively, the clearance groove A is in a round hole shape, the diameter dimension D of the clearance groove A ranges from 4mm to 8mm, and the depth dimension H of the clearance groove A ranges from 1mm to 2mm. In this embodiment, in order to improve the chip removal capability of the clearance groove a, the diameter dimension D of the clearance groove a is defined to be 4mm-8mm, and the depth dimension H is defined to be 1mm-2mm. In the operation process of the cutting parts 11, the cutting edges continuously mill blank plates, flying chips are formed at the cutting edge parts and can enter the clearance groove A, the clearance groove A has enough containing space, accumulation of the flying chips can be avoided in a short time, a large amount of flying chips between the two cutting parts 11 are prevented from being extruded mutually, the phenomenon of cutter abrasion is effectively solved, the phenomenon that the cutter surface smoothness is damaged by the extruded flying chips is avoided, the primary shape precision of the machined camera assembly 200 meets the requirement, and the surface quality of a workpiece (the camera assembly 200) is improved.
Referring to fig. 6 and 7, in a conventional process for manufacturing the camera module 200, a blank plate is generally manufactured by machining the outer periphery 220, then machining the end face 111, and finally machining the rounded structure 210. This traditional processing method has 3 disadvantages:
① Because the two sides of the rounded structure 210 are respectively connected with the periphery 220 and the end surface 111, when the periphery 220 and the end surface 111 are processed, the cutter wear amount is inconsistent, and the connection position with the rounded structure 210 is not smooth or inconsistent;
② When the rounding structure 210 is processed, the dimension of the rounding structure 210 is too small, and the included angle between two sides is only 90 degrees, so that the chip removal space is insufficient, chip squeezing phenomenon is easy to occur, the surface quality of a workpiece is damaged, and the service life of a cutter is reduced;
③ The whole processing technology needs three steps to be completed, the processing route is longer, and the processing time is longer.
In view of this, the present application proposes a method for processing a camera module 200, wherein the method for processing the camera module 200 employs the two-edge milling cutter 100, and the method for processing the camera module 200 comprises:
placing the blank plate on a workbench, wherein the cutter handle is connected with a driving structure, and the end face 111 of the cutting part 11 is abutted against the surface of the blank plate;
the cutter handle is driven to rotate, and the periphery 220, the rounding structure 210 and the end face 111 of the camera assembly 200 are milled;
Wherein the periphery 220, the rounded structure 210 and the end surface 111 are connected in sequence.
The specific structure of the two-edge milling cutter 100 refers to the above embodiment, and the processing method of the camera assembly 200 adopts all the technical solutions of all the embodiments, so that at least all the beneficial effects brought by the technical solutions of the embodiments are provided, and will not be described in detail herein.
In the above technical scheme, the blank plate is placed on a workbench, and the workbench can be a workbench of a milling machine. The two-edge milling cutter 100 of the present application is mounted on a milling machine such that the cutting portion 11 thereof is aligned with the blank plate. The drive structure may enable a drill bit of the milling machine. The milling machine drives the two-edge milling cutter 100 to rotate, the blank plate is fed by a preset track according to a feed program preset by CNC, the blank plate is milled by the cutting part 11, and the peripheral edge of the cutting part 11 cuts out a cylinder to form the preliminary shape of the camera assembly 200. It will be appreciated that the preliminary shape of the camera head assembly 200 includes the periphery 220, the rounded structure 210 and the end face 111, and is one-shot formed to facilitate subsequent machining of the rounded structure 210 to within 0.006mm tolerance.
As shown in fig. 8, a flowchart of an embodiment of a method for processing a camera assembly 200 according to an embodiment of the present application is shown. The method for processing the camera module 200 described in the present embodiment is applied to processing the camera module 200, and the method for processing the camera module 200 includes the following steps:
in step S101, the blank plate is placed on a workbench, the tool shank is connected with a driving structure, and the end face 111 of the cutting part 11 abuts against the surface of the blank plate.
In practice, the two-edge milling cutter 100 is mounted on a milling machine with its cutting portion 11 aligned with the blank sheet. Specifically, a blank plate meeting the machining specification can be selected first and fixed on a workbench of a milling machine. In order to facilitate alignment of the cutting portion 11 to the blank sheet, a machining start point may be marked in advance on the blank sheet. The shank is fitted to the drill of the milling machine and the cutting portion 11 is aligned with the blank sheet.
Step S102, driving the cutter handle to rotate, and milling out the periphery 220, the rounding structure 210 and the end face 111 of the camera assembly 200;
In particular embodiments, the drive structure may be a drill bit of a milling machine. The milling machine drives the two-edge milling cutter 100 to rotate, the blank plate is fed by a preset track according to a feed program preset by CNC, the blank plate is milled by the cutting part 11, and the peripheral edge of the cutting part 11 cuts out a cylinder to form the preliminary shape of the camera assembly 200. It will be appreciated that the preliminary shape of the camera head assembly 200 includes the periphery 220, the rounded structure 210 and the end face 111, and is one-shot formed to facilitate subsequent machining of the rounded structure 210 to within 0.006mm tolerance.
Referring to fig. 8, it will be appreciated that a standard end mill may be selected for milling the second rounded portion and/or peripheral surface 112.
For example, camera assembly 200 is machined using a standard end mill. During machining, the shank rotates and moves in a circular motion, and a cylinder is cut by the edge of the peripheral edge of the cutting portion 11.
Referring to fig. 9, a flowchart of an embodiment of a method for processing a camera assembly 200 according to an embodiment of the application is shown. For the rounding structure 210 with the machining precision tolerance requirement within 0.006mm, setting the bottom surface of the clearance groove A as an end surface 111, the side wall surface of the clearance groove A as a peripheral surface 112, and setting a first chamfer R1 at the connection position between the peripheral surface 112 and the end surface 111; a second chamfer R2 is further disposed between the peripheral surface 112 and the end surface 111, and the peripheral surface 112, the first chamfer R1, the second chamfer R2, and the end surface 111 are sequentially connected;
Step S102 includes:
and S1021, feeding the two-edge milling cutter 100 from top to bottom in a direction perpendicular to the horizontal direction, cutting the blank plate, and returning the two-edge milling cutter 100 from bottom to top after reaching a specified size to form a first rounding part and a second rounding part.
In particular, the lower end of the cutting portion 11 of the two-edge milling cutter 100 is provided with a second chamfer R2 between the peripheral surface 112 and the end surface 111, and the peripheral surface 112, the first chamfer R1, the second chamfer R2, and the end surface 111 are connected in this order. In the milling operation process of each cutting part 11, the blank plate is continuously cut, the flying chips milled by the cutting parts 11 can move towards the cutter handle along the chip removing grooves B, the flying chips between the two chip removing grooves B can not be mutually accumulated, a plurality of flying chips are prevented from remaining on the cutting parts 11, the cutting edge temperature of the cutting parts 11 is prevented from being too high, the surface quality of a workpiece is ensured, and the service life of a cutter is prolonged. The first chamfer R1 can finish the periphery 220 and the rounding structure 210 with one-time processing, and the cutter abrasion loss is small, so that the smooth and stable performance of the connection between the rounding structure 210 and the periphery 220 is well ensured. After the machining is finished, the second rounding part is milled, so that the condition that the machining precision of the first rounding part is not satisfied can be avoided, and secondly, the first rounding part with the dimensional precision tolerance within 0.006mm can be easily machined in the process of milling the second rounding part.
Referring to fig. 8 and 10, a flowchart of an embodiment of a method for processing a camera module 200 according to an embodiment of the application is shown. Step S102 includes:
step S103, abutting the end edge 113 of the two-edge milling cutter 100 against the second rounding part;
Step S104, driving the shank to rotate, and controlling the two-edge milling cutter 100 to reciprocate horizontally, so that the end edge 113 of the two-edge milling cutter 100 cuts the second rounded portion.
In a specific implementation, the standard end mill is replaced. After the first rounded portion is machined, the machined camera head assembly 200 may have a second rounded portion due to the second chamfer R2 space, and thus, the standard end mill may be replaced on the milling machine. The second rounded portion is cut by the standard end mill, and this aims to remove a portion that is increased by the addition of the second chamfer R2 to the two-edge mill 100.
Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
The above description of the preferred embodiments is not intended to limit the scope of the invention, but is intended to cover all modifications, equivalents, and uses of the invention in the field of the invention, including both literally and in the field of the invention, including both the literal and the equivalent, or by direct/indirect application in the field of the invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210916969.8A CN115889868B (en) | 2022-08-01 | 2022-08-01 | Two-edged milling cutter and camera assembly processing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210916969.8A CN115889868B (en) | 2022-08-01 | 2022-08-01 | Two-edged milling cutter and camera assembly processing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115889868A CN115889868A (en) | 2023-04-04 |
| CN115889868B true CN115889868B (en) | 2024-11-22 |
Family
ID=86483885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210916969.8A Active CN115889868B (en) | 2022-08-01 | 2022-08-01 | Two-edged milling cutter and camera assembly processing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115889868B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207223041U (en) * | 2017-09-30 | 2018-04-13 | 鼎胜刀具（东莞）有限公司 | A kind of two blade milling cutters for the processing of mobile phone aluminum alloy casing |
| CN209223213U (en) * | 2018-12-12 | 2019-08-09 | 深圳市明辉刀具有限公司 | One time forming cutting tool and lathe |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09290315A (en) * | 1996-04-25 | 1997-11-11 | Mitsubishi Materials Corp | Cutter machining method and milling tool |
| CN202894448U (en) * | 2012-09-19 | 2013-04-24 | 常州克劳诺斯特种轴承制造有限公司 | Annular groove and chamfer combined milling cutter |
| CN107717044A (en) * | 2017-11-17 | 2018-02-23 | 中山市园丰精密刃具有限公司 | A high-gloss chamfering knife for the outer ring of the camera |
| CN207770998U (en) * | 2018-01-06 | 2018-08-28 | 东莞市同进刀具科技有限公司 | A kind of bloom chamfering tool |
| CN108838449A (en) * | 2018-07-23 | 2018-11-20 | 中山市园丰精密刃具有限公司 | A kind of end sword cutter block |
| CN112705770B (en) * | 2020-12-01 | 2022-04-29 | 珠海市润星泰电器有限公司 | Machining surface coarsening milling cutter and machining surface machining method thereof |
| CN215392742U (en) * | 2021-07-12 | 2022-01-04 | 无锡富泰盛精模科技有限公司 | Novel milling cutter for processing workpieces |
-
2022
- 2022-08-01 CN CN202210916969.8A patent/CN115889868B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207223041U (en) * | 2017-09-30 | 2018-04-13 | 鼎胜刀具（东莞）有限公司 | A kind of two blade milling cutters for the processing of mobile phone aluminum alloy casing |
| CN209223213U (en) * | 2018-12-12 | 2019-08-09 | 深圳市明辉刀具有限公司 | One time forming cutting tool and lathe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115889868A (en) | 2023-04-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104400008B (en) | A kind of numerical-control processing method in the deep chamber of ring of obturaging | |
| CN113369551A (en) | End mill and double-curved-surface milling method for wing surface of rotating shaft beam based on end mill | |
| CN115889868B (en) | Two-edged milling cutter and camera assembly processing method | |
| CN206677204U (en) | A kind of integrated coarse and fine boring cutting tool | |
| JPH09192930A (en) | Thread cutter | |
| JP3025383U (en) | Rotary cutting tool with twisting fluid supply hole | |
| CN216065722U (en) | Drum-shaped arc milling cutter | |
| CN218503491U (en) | Segmented processing reamer | |
| CN212823865U (en) | A drill-and-insert milling cutter | |
| CN214640518U (en) | Plunge milling cutter | |
| CN216575739U (en) | Rough and finish machining integrated milling cutter | |
| CN214684430U (en) | Z-axis bidirectional-feed cutting plunge milling cutter | |
| CN213257329U (en) | Left-handed tungsten steel coating forming milling cutter | |
| CN210848519U (en) | Left-right turning combined T-shaped cutter | |
| CN211276691U (en) | Compound staggered tooth cutter | |
| CN209407530U (en) | A Formed Wrong-tooth Milling Cutter | |
| CN222020671U (en) | A high-precision differential oil groove machining tool | |
| CN222957579U (en) | A U-shaped groove three-blade aluminum milling cutter | |
| CN217192797U (en) | Multifunctional chamfering centering drilling and milling cutter for metal cutting | |
| CN217530125U (en) | High-efficiency ultra-precision gantry numerical control computer gong | |
| CN222429392U (en) | Double-arc-surface slotting tool | |
| CN218745099U (en) | Center avoiding type drilling and milling cutter | |
| CN213614388U (en) | Unequal integral milling cutter | |
| CN218016030U (en) | End milling cutter | |
| CN222307467U (en) | Forming milling cutter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |