Method of processing and polishing piece

Abstract

The application provides a processing method and a polishing piece. The processing method is applied to a porous soft piece with a first surface and a non-processing surface arranged oppositely. The processing method comprises the following steps: providing a processing piece; abutting the processing piece against at least part of the first surface, so that at least part of the first surface is protruded towards a direction close to the non-processing surface; and cutting the first surface by using the processing piece to obtain a second surface, wherein the second surface is obtained by cutting the first surface, the surface type of the second surface is a curved surface type, and the spherical error SE of the second surface satisfies the following condition: 0.5 μm≤SE≤3 μm. By using the processing piece to extrude the first surface and cut the porous soft piece at the same time, the processing piece applies a force to the first surface towards the direction close to the non-processing surface, so that the probability of surface protrusion in the processing process is reduced, and the shape accuracy of the processed porous soft piece is improved.

Description

Technical Field

[0001] This application belongs to the field of precision machining technology, specifically relating to machining methods and polished parts. Background Technology

[0002] In the field of precision machining technology, due to the characteristics of porous soft components having multiple blind holes and being made of soft materials, it is easy to tear porous soft components during machining, resulting in more surface protrusions and lower shape accuracy after machining. Summary of the Invention

[0003] In view of this, the first aspect of this application provides a processing method applied to a porous soft device, the porous soft device having a first surface and a non-processed surface disposed opposite to each other, the processing method comprising:

[0004] Provide processed parts;

[0005] The workpiece is brought into contact with at least a portion of the first surface, such that at least a portion of the first surface protrudes toward the direction of the unworked surface;

[0006] The first surface is machined using the workpiece to obtain a second surface, which is obtained by machining the first surface. The second surface is curved, and the sphericity error SE of the second surface satisfies the following condition: 0.5μm≤SE≤3μm.

[0007] The processing method provided in the first aspect of this application is simple in steps and highly operable. First, a workpiece is used to abut against at least a portion of a first surface, with the first surface bulging towards the non-machined surface. Then, the workpiece is used to cut and machine the first surface.

[0008] Specifically, the workpiece abuts against at least a portion of the first surface, causing the first surface to bulge towards the non-machined surface. This can be understood as the workpiece pressing against and squeezing the first surface, causing a portion of the first surface to deform towards the non-machined surface; or, the workpiece applies a force to the first surface towards the non-machined surface; or, the workpiece applies pressure to the first surface from top to bottom. By squeezing at least a portion of the first surface and performing cutting, the force applied to the first surface towards the non-machined surface during cutting reduces the probability of the first surface bulging away from the non-machined surface; or, the downward pressure applied to the first surface reduces the probability of the first surface bulging upwards, thereby improving the shape accuracy of the porous soft part after processing. It should be noted that the shape accuracy in this application can be understood as sphericity error, and the shape accuracy of curved surfaces is equivalent to sphericity error.

[0009] In addition, the second surface in this application is curved. During the processing, the extrusion force of the workpiece on each part of the first surface can converge or approximately converge and intersect on the non-processed surface along the normal direction of the curved surface. This processing is beneficial to further improve the shape accuracy of the porous soft part after processing, and can also improve the surface quality of the porous soft part after processing.

[0010] Therefore, this application reduces the probability of surface protrusions during processing and improves the shape accuracy of the porous soft part after processing by using a workpiece to press the first surface while cutting the porous soft part, and the workpiece applies a force to the first surface toward the direction close to the non-machined surface.

[0011] The workpiece includes a rake face and a connecting surface that bends to connect the rake face. The connecting surface is a plane, and the angle α between the rake face and the connecting surface is a negative rake angle and is an acute angle.

[0012] The included angle α between the rake face and the connecting face satisfies the following condition: -60°≤α<0°.

[0013] The processed part includes a processing section for processing the first surface, and the surface of the processing section protrudes in a direction close to the first surface.

[0014] Wherein, at least a portion of the processing part is circular or near-circular, and the radius r of the processing part satisfies the following condition: 0.1mm≤r≤2mm.

[0015] The spindle speed s of the workpiece satisfies the following condition: 1000rpm≤s≤5000rpm.

[0016] The first surface has a plurality of blind holes, and before "the workpiece abuts against at least a portion of the first surface", it further includes:

[0017] Provide filling material;

[0018] The filler is placed inside the plurality of blind holes.

[0019] Wherein, "at least a portion of the processed part abutting the first surface" includes:

[0020] Make the side of the filler facing away from the unprocessed surface flush with the first surface.

[0021] The filler is capable of bonding the porous soft component.

[0022] The second aspect of this application provides a polished part, which is obtained by processing a porous soft component using the processing method provided in the first aspect of this application. The polished part has a polishing surface for polishing, which is obtained by cutting a first surface of the porous soft component. The polishing surface has a curved surface shape, and the sphericity error SE of the polishing surface satisfies the following condition: 0.5μm≤SE≤3μm.

[0023] The polished part provided in the second aspect of this application has a polished surface obtained by using the processing method provided in the first aspect of this application from the first surface of the porous soft part. By using a processing part to press the first surface while cutting the porous soft part, the processing part applies a force to the first surface in the direction close to the non-processed surface, thereby reducing the probability of surface protrusion during processing and improving the shape accuracy of the porous soft part after processing. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the embodiments of this application will be described below.

[0025] Figure 1 This is a cross-sectional view of the porous software component after processing using relevant technologies.

[0026] Figure 2 This is a process flow diagram of the processing method in one embodiment of this application.

[0027] Figure 3 This is a cross-sectional view of the porous soft component before processing in one embodiment of this application.

[0028] Figure 4 This is a cross-sectional view of the processed porous soft component according to one embodiment of this application.

[0029] Figure 5 This is a three-dimensional structural diagram of the processed part according to one embodiment of this application.

[0030] Figure 6 for Figure 5 A magnified view of a portion of the image.

[0031] Figure 7 This is a cross-sectional view of a porous soft component during the processing according to an embodiment of this application.

[0032] Figure 8 This is a process flow diagram of a processing method in another embodiment of this application.

[0033] Figure 9 This is a cross-sectional view of a porous soft component during processing, according to another embodiment of this application.

[0034] Figure 10This is a process flow diagram of a processing method in another embodiment of this application.

[0035] Label Explanation:

[0036] Porous soft component-1, first surface-1a, unmachined surface-1b, second surface-1c, protrusion-11, blind hole-12, machined part-2, rake face-2a, connecting surface-2b, machined part-21, filler-3. Detailed Implementation

[0037] The following are preferred embodiments of this application. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0038] Before introducing the technical solution of this application, let's go over the technical issues in related technologies in detail.

[0039] Soft porous polishing materials are widely used in the polishing of optical glass. In recent years, the polishing of optical components has evolved from classical polishing to high-speed polishing. Correspondingly, polishing materials have also evolved from natural polymers to hybrid polishing materials and synthetic polymers. Currently, materials used for polishing optical components include asphalt, felt, and polyurethane polishing pads. Polyurethane materials possess a unique soft and hard segment structure. The flexible soft segments composed of polyols impart elasticity and toughness to the material, while the rigid hard segments composed of isocyanates impart strength and hardness. This special microphase structure makes polyurethane an ideal polishing material.

[0040] In high-precision polishing processes, the polishing material needs to achieve a certain removal rate from the material being polished, but the coefficient of friction between the material and the polished material cannot be too high, causing numerous scratches on the surface. This requires the polishing material to possess both rigidity and flexibility, and the structural characteristics of polyurethane perfectly meet this requirement. Abrasive fillers can also be added during the manufacturing process to suit polishing applications for various optical components, resulting in different machinability properties due to the addition of abrasive powder.

[0041] The development of Computer Controlled Optical Surfacing (CCOS) technology has introduced small polishing heads with spherical or special curved surfaces. The differences in surface shape, pore distribution, and protrusion distribution have a great influence on the polishing of optical components.

[0042] Please refer to the following: Figure 1 , Figure 1This is a cross-sectional view of a porous soft component after processing using relevant technologies. In the field of ultra-precision machining technology, due to the characteristics of the porous soft component 1 having multiple blind holes 12 and being made of soft material, it is easy to tear the porous soft component 1 during processing, resulting in more surface protrusions 11 and reducing the shape accuracy of the porous soft component 1 after processing.

[0043] In view of this, in order to solve the above problems, this application provides a processing method. Please refer to it as well. Figures 2-4 , Figure 2 This is a process flow diagram of the processing method in one embodiment of this application. Figure 3 This is a cross-sectional view of the porous soft component before processing in one embodiment of this application. Figure 4 This is a cross-sectional view of the processed porous soft component according to one embodiment of this application.

[0044] This embodiment provides a processing method applied to a porous soft component 1, the porous soft component 1 having a first surface 1a and a non-processed surface 1b arranged opposite to each other.

[0045] The porous soft component 1 provided in this embodiment is made of a porous soft material. The porous soft component 1 is elastic. The porous soft component 1 includes a plurality of blind holes 12 spaced apart. Optionally, the material of the porous soft component 1 includes at least one of polyurethane, polyimide, polyamide, etc. The porous soft component 1 has a first surface 1a and an unprocessed surface 1b disposed opposite to each other. The first surface 1a can also be understood as the upper surface, and the unprocessed surface 1b as the lower surface used for support and placement.

[0046] The processing method includes S100, S200, and S300. Detailed descriptions of S100, S200, and S300 are as follows.

[0047] S100, provides 2 machined parts.

[0048] This embodiment provides a machining component 2 for cutting the porous soft component 1. The machining component 2 can also be understood as a cutting tool. This embodiment does not limit the shape of the machining component 2; for example, it can be a cylindrical machining component 2, a saw blade machining component 2, a vertical machining component 2, a surface machining component 2, or a three-sided cutting component 2, etc., as long as it can machine and cut the porous soft component 1. Optionally, the machining component 2 includes, but is not limited to, milling cutters, reamers, drill reamers, boring tools, drill bits, etc.

[0049] S200, the processed part 2 is brought against at least a portion of the first surface 1a, such that at least a portion of the first surface 1a protrudes toward the direction close to the unprocessed surface 1b.

[0050] In this embodiment, the processing member 2 abuts against at least a portion of the first surface 1a and causes the first surface 1a to bulge toward the direction of the non-processed surface 1b. This can be understood as the processing member 2 abutting against and pressing the first surface 1a, causing a portion of the first surface 1a to deform toward the direction of the non-processed surface 1b; or, the processing member 2 applying a force to the first surface 1a toward the direction of the non-processed surface 1b; or, the processing member 2 applying a pressure to the first surface 1a from top to bottom.

[0051] By pressing at least a portion of the first surface 1a and performing cutting, the probability of the first surface 1a producing a protrusion in the direction away from the non-machined surface 1b can be reduced because the force applied to the first surface 1a during cutting is directed toward the direction closer to the non-machined surface 1b; or, the downward pressing force applied to the first surface 1a can reduce the probability of the first surface 1a producing an upward protrusion, thereby improving the shape accuracy of the porous soft part 1 after processing.

[0052] Optionally, the first surface 1a includes an extruded portion and a non-extruded portion surrounding the periphery of the extruded portion. The step of causing at least a portion of the first surface 1a to bulge towards the unprocessed surface 1b includes:

[0053] At least a portion of the extruded portion protrudes toward the direction close to the unprocessed surface 1b; wherein the distance d between the extruded portion protruding toward the direction close to the unprocessed surface 1b and the unextruded portion satisfies the following condition: 1μm≤d≤100μm.

[0054] In other words, the pressing amount of the workpiece 2 pressing down on the first surface 1a is 1μm-100μm. Specifically, the value of the spacing d can be, but is not limited to, 1μm, 10μm, 20μm, 30μm, 40μm, 50μm, 60μm, 70μm, 80μm, 90μm, and 100μm.

[0055] In this embodiment, when the spacing d is within the range of 1μm-100μm, it not only reduces the probability of the first surface 1a producing a protrusion in the direction away from the non-machined surface 1b, but also reduces the impact on the cutting of the porous soft component 1. If the spacing d is too small, the pressure applied by the workpiece 2 to the first surface 1a will be too small, failing to reduce the probability of the first surface 1a producing a protrusion in the direction away from the non-machined surface 1b. If the spacing d is too large, it will be detrimental to the cutting of the porous soft component 1, reducing the shape accuracy of the porous soft component 1 after processing.

[0056] S300, the first surface 1a is machined by the machining part 2 to obtain the second surface 1c. The second surface 1c is obtained by machining the first surface. The surface shape of the second surface 1c is curved. The sphericity error SE of the second surface 1c satisfies the following condition: 0.5μm≤SE≤3μm.

[0057] A curved surface can also be understood as a curved surface; or, in other words, the surface is not a plane, but rather bent or curved. Optionally, the curved surface can be semi-circular, near-circular, circular, elliptical, etc. It should be noted that the shape accuracy of this application can be understood as sphericity error (SE), and the shape accuracy of the curved surface is equivalent to sphericity error.

[0058] In this embodiment, the second surface 1c, i.e., the processed first surface 1a, is curved. During processing, the extrusion force exerted by the workpiece 2 on various parts of the first surface 1a can converge or approximately converge and intersect on the non-processed surface 1b along the normal direction of the curved surface. This processing method is beneficial for further improving the shape accuracy of the porous soft component 1 after processing, and can also improve the surface quality of the porous soft component 1 after processing. Here, the normal refers to the line perpendicular to the curved surface.

[0059] Optionally, the first surface 1a has a first surface porosity, and the second surface 1c has a second surface porosity, the value of which is 1.5-2 times that of the first surface porosity. In other words, the surface porosity of the second surface 1c is improved to be 1.5-2 times that of the first surface 1a. By simultaneously extruding the first surface 1a and cutting the porous soft part 1 in this embodiment, the surface porosity of the first surface 1a can be increased, improving the surface quality of the processed porous soft part 1, and exposing more blind holes 12 on the polished surface. The exposed blind holes 12 can be used to store polishing fluid, thereby improving the polishing effect of the processed porous soft part 1.

[0060] In summary, the processing method provided in this embodiment is simple in steps and highly operable. First, the processing component 2 abuts against at least a portion of the first surface 1a, causing the first surface 1a to bulge towards the non-processed surface 1b. Then, the processing component 2 performs cutting processing on the first surface 1a. By simultaneously pressing the first surface 1a with the processing component 2 and cutting the porous soft component 1, the processing component 2 applies a force to the first surface 1a towards the non-processed surface 1b, thereby reducing the probability of surface bulging during processing and improving the shape accuracy of the porous soft component 1 after processing.

[0061] Please refer to this as well. Figure 5 and Figure 6 , Figure 5 This is a three-dimensional structural diagram of the processed part according to one embodiment of this application. Figure 6 for Figure 5 A partially enlarged view. In one embodiment, the machined part 2 includes a rake face 2a and a connecting surface 2b that bends and connects the rake face 2a. The connecting surface 2b is a plane, and the angle α between the rake face 2a and the connecting surface 2b is a negative rake angle and is an acute angle.

[0062] The machining part 2 used in this embodiment has a rake face 2a and a connecting surface 2b. The rake face 2a refers to the surface from which the cutting material flows out, and the connecting surface 2b refers to the surface used to connect the rake face 2a. The connecting surface 2b is connected to the side of the rake face 2a that is away from the first surface 1a. The angle α between the rake face 2a and the connecting surface 2b is a negative rake angle. This setting can apply greater compressive force to the porous soft part 1, thereby further reducing the probability of the first surface 1a bulging upwards, or in other words, further reducing the probability of the first surface 1a tearing deformation, thereby further improving the shape accuracy of the porous soft part 1 after machining, and further improving the surface quality of the porous soft part 1 after machining.

[0063] In one embodiment, if the angle α between the rake face 2a and the connecting surface 2b is not a negative rake angle, it is easy to produce more protrusions on the surface of the machined porous soft component 1. The diameter of the protrusions is about 1 mm, which will reduce the shape accuracy of the machined porous soft component 1 and also reduce the surface quality of the machined porous soft component 1. It should be noted that compared with the embodiment where the angle α between the rake face 2a and the connecting surface 2b is not a negative rake angle, the embodiment where the angle α between the rake face 2a and the connecting surface 2b is a negative rake angle results in a higher shape accuracy of the machined porous soft component 1; however, this does not mean that the machining method of this application must use a tool with a negative rake angle between the rake face 2a and the connecting surface 2b to achieve the purpose of improving the shape accuracy of the machined porous soft component 1. Using a tool where the angle α between the rake face 2a and the connecting surface 2b is not a negative rake angle can also achieve the purpose of improving the shape accuracy of the machined porous soft component 1.

[0064] Please refer to this as well. Figure 5 and Figure 6 In one embodiment, the included angle α between the rake face 2a and the connecting face 2b satisfies the following condition: -60° ≤ α < 0°. Specifically, the value of the included angle α can be, but is not limited to, -5°, -10°, -15°, -20°, -25°, -30°, -35°, -40°, -45°, -50°, -55°, and -60°.

[0065] In this embodiment, when the included angle α is within the range of -60° to 0°, not only can a greater extrusion force be applied to the porous soft component 1, but the manufacturing difficulty of the processed component 2 can also be reduced. If the included angle α is too small, the pressure applied by the processed component 2 to the first surface 1a will be too small, and the probability of the first surface 1a producing a protrusion in a direction away from the non-processed surface 1b cannot be reduced. If the included angle α is too large, it will increase the difficulty of manufacturing the processed component 2, increase the cost of manufacturing the processed component 2, and be detrimental to production.

[0066] Please refer to this as well. Figures 5-7 , Figure 7 This is a cross-sectional view of a porous soft component during processing according to one embodiment of this application. In one embodiment, the processing component 2 includes a processing part 21 for processing the first surface 1a, and the surface of the processing part 21 protrudes toward the first surface 1a.

[0067] The machining component 2 used in this embodiment includes a machining section 21, which is used to abut against and cut the first surface 1a to process the porous soft component 1. The surface of the machining section 21 protrudes in a direction close to the first surface 1a. Optionally, the shape of the machining section 21 is circular, semi-circular, nearly circular, elliptical, etc. Since this embodiment requires the surface shape of the porous soft component 1 to be curved after processing, using the machining component 2 with the machining section 21 protruding in a direction close to the first surface 1a can reduce the processing difficulty of the porous soft component, make it easier to process a curved surface, and thus further improve the shape accuracy of the porous soft component 1 after processing.

[0068] Please refer to this as well. Figures 5-7 In one embodiment, at least a portion of the processing part 21 is circular or near-circular, and the radius r of the processing part 21 satisfies the following condition: 0.1mm ≤ r ≤ 2mm. Specifically, the value of the radius r can be, but is not limited to, 0.1mm, 0.3mm, 0.5mm, 0.7mm, 0.9mm, 1.1mm, 1.3mm, 1.5mm, 1.7mm, 1.9mm, and 2mm, etc.

[0069] In this embodiment, when the radius r is within the range of 0.1mm-2mm, it not only reduces the processing difficulty of the porous soft material but also reduces the fabrication difficulty of the processed part 2. If the radius r is too small, it will be difficult to process curved surfaces, increasing the processing difficulty of the porous soft material. If the radius r is too large, it will increase the difficulty of fabricating the processed part 2, increase the cost of fabricating the processed part 2, and be detrimental to production.

[0070] In one embodiment, the spindle speed s of the workpiece 2 satisfies the following condition: 1000rpm ≤ s ≤ 5000rpm. Specifically, the value of the spindle speed s can be, but is not limited to, 1000rpm, 1500rpm, 2000rpm, 2500rpm, 3000rpm, 3500rpm, 4000rpm, 4500rpm, and 5000rpm.

[0071] In this embodiment, by increasing the spindle speed, the first surface 1a is cut faster, making it less likely for the porous soft component 1 to tear during cutting. In other words, the probability of tearing deformation of the first surface 1a is reduced, and the probability of upward protrusion of the first surface 1a is reduced, thereby further improving the shape accuracy of the porous soft component 1 after processing and further improving the surface quality of the porous soft component 1 after processing.

[0072] In this embodiment, when the spindle speed s is within the range of 1000rpm-5000rpm, not only can the probability of tearing deformation of the first surface 1a be reduced, but the processing efficiency can also be improved. If the spindle speed s is too small or too low, the porous soft component 1 will be prone to tearing, increasing the probability of upward protrusion of the first surface 1a and reducing the shape accuracy of the porous soft component 1 after processing.

[0073] Please refer to this as well. Figure 8 and Figure 9 , Figure 8 This is a process flow diagram of a processing method in another embodiment of this application. Figure 9 This is a cross-sectional view of a porous soft component during processing according to another embodiment of this application. In one embodiment, the first surface 1a has a plurality of blind holes 12, and prior to step S200, where the processed component 2 abuts against at least a portion of the first surface 1a, the process further includes:

[0074] S210, provides filler 3.

[0075] This embodiment provides a filler 3 for filling the blind holes 12 of the porous flexible component 1. Optionally, the filler 3 includes, but is not limited to, resin, rubber, silicone, adhesive, etc.

[0076] S220, the filler 3 is placed in the plurality of blind holes 12.

[0077] In one embodiment, the filler 3 can be snapped into the plurality of blind holes 12. In another embodiment, an adhesive can be first placed in the plurality of blind holes 12, and then the filler 3 can be placed in the plurality of blind holes 12. In yet another embodiment, the filler 3 is self-locking and adhesive, and can be directly adhered to the plurality of blind holes 12.

[0078] This embodiment increases the hardness of the porous soft component 1 by providing filler 3 in the blind holes 12 of the porous soft component 1, making the first surface 1a of the porous soft component 1 flatter, reducing the processing difficulty of the processing part 2 on the porous soft component 1, reducing the probability of tearing deformation of the first surface 1a, reducing the probability of upward protrusion of the first surface 1a, thereby further improving the shape accuracy of the porous soft component 1 after processing.

[0079] Please refer to this as well. Figures 9-10 , Figure 10 This is a process flow diagram of a processing method in another embodiment of this application. In one embodiment, the step of contacting at least a portion of the processed part 2 against the first surface 1a in step S220 includes:

[0080] S221, so that the side surface of the filler 3 facing away from the unprocessed surface 1b is flush with the first surface 1a.

[0081] In this embodiment, the side surface of the filler 3 facing away from the non-processed surface 1b is made flush with the first surface 1a. In other words, the side surface of the filler 3 with the exposed blind hole 12 is made flush with the first surface 1a. This reduces the height difference between the first surface 1a and the surface of the filler 3, making the first surface 1a of the porous soft component 1 flatter, reducing the processing difficulty of the processing component 2 on the porous soft component 1, reducing the probability of tearing deformation of the first surface 1a, and reducing the probability of upward protrusion of the first surface 1a, thereby further improving the shape accuracy of the porous soft component 1 after processing.

[0082] In one embodiment, the filler 3 is capable of bonding the porous soft component 1.

[0083] In this embodiment, the filler 3 is capable of bonding the porous flexible component 1; in other words, the filler 3 is adhesive. Optionally, the filler 3 is an adhesive, such as super glue, black glue, etc.

[0084] In this embodiment, the filler 3 can bond the porous soft component 1, which not only improves the connection performance between the filler 3 and the porous soft component 1 and increases the stability during processing, but also simplifies the process, eliminating the need to first apply adhesive and then place the filler 3 in the blind hole 12, thereby improving processing efficiency.

[0085] Optionally, in one embodiment, quick-drying adhesive is used as filler 3. First, the quick-drying adhesive is placed within a plurality of blind holes 12, with the side of the adhesive facing away from the non-machined surface 1b flush with the first surface 1a. Then, a processing component 2 is used to press against at least a portion of the first surface 1a, causing at least a portion of the first surface 1a to bulge towards the non-machined surface 1b. The processing component 2 then performs cutting processing on the first surface 1a. After processing is complete, the quick-drying adhesive can be removed from the processed porous flexible component 1 using acetone and ultrasonic methods.

[0086] This application also provides a polished part, which is obtained by processing a porous soft component using the processing method provided above in this application. The polished part has a polishing surface for polishing, which is obtained by cutting a first surface of the porous soft component. The surface shape of the polishing surface is curved, and the sphericity error SE of the polishing surface satisfies the following condition: 0.5μm≤SE≤3μm.

[0087] Optionally, the first surface has a first surface porosity, and the polished surface has a second surface porosity 1c, the value of which is 1.5-2 times the value of the first surface porosity. In other words, the surface porosity of the polished surface obtained after processing is improved to 1.5-2 times that of the first surface. By using the method of pressing the first surface while cutting the porous soft part in this embodiment, the surface porosity of the first surface can be increased, the surface quality of the processed porous soft part can be improved, and more blind holes can be exposed on the polished surface. The exposed blind holes can be used to store polishing fluid, thereby improving the polishing effect of the processed porous soft part.

[0088] The polished part provided in this embodiment has a polished surface obtained from the first surface of the porous soft part by using the processing method provided above in this application. By using a processing part to press the first surface while cutting the porous soft part, the processing part applies a force to the first surface in the direction close to the non-processed surface, thereby reducing the probability of surface protrusion during processing and improving the shape accuracy of the porous soft part after processing.

[0089] The above provides a detailed description of the embodiments provided in this application. This document elucidates and explains the principles and implementation methods of this application. The above description is only intended to help understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A processing method, characterized in that, Applied to porous soft components, the porous soft components having a first surface and a non-machined surface disposed opposite to each other, the processing method includes: Provide a machined part; the machined part includes a rake face and a connecting surface that bends to connect the rake face, the connecting surface is a plane, and the angle α between the rake face and the connecting surface is a negative rake angle and is an acute angle; The processed part includes a processing section for processing the first surface, the surface of the processing section protruding towards the first surface; at least a portion of the processing section is circular or near-circular, and the radius r of the processing section satisfies the following condition: 0.1mm ≤ r ≤ 2mm; The workpiece is brought into contact with at least a portion of the first surface, causing at least a portion of the first surface to bulge toward the direction of the unworked surface, thereby causing the first surface to undergo a curved concave deformation. The first surface is machined using the workpiece to obtain a second surface, which is obtained by machining the first surface. The second surface is curved, and the sphericity error SE of the second surface satisfies the following condition: 0.5μm≤SE≤3μm.

2. The processing method as described in claim 1, characterized in that, The included angle α between the rake face and the connecting face satisfies the following condition: -60°≤α<0°.

3. The processing method as described in claim 1, characterized in that, The spindle speed s of the workpiece satisfies the following condition: 1000rpm≤s≤5000rpm.

4. The processing method as described in claim 1, characterized in that, The first surface has a plurality of blind holes, and before "the workpiece abuts against at least a portion of the first surface", it further includes: Provide filling material; The filler is placed inside the plurality of blind holes.

5. The processing method as described in claim 4, characterized in that, The phrase "at least a portion of the processed part abutting the first surface" includes: Make the side of the filler facing away from the unprocessed surface flush with the first surface.

6. The processing method as described in claim 4, characterized in that, The filler can bond the porous soft component.

7. A polished part, characterized in that, The polished part is obtained by processing a porous soft component using the processing method described in any one of claims 1-6. The polished part has a polishing surface for polishing, which is obtained by cutting a first surface of the porous soft component. The polishing surface is curved, and the sphericity error SE of the polishing surface satisfies the following condition: 0.5μm≤SE≤3μm.

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