Clamping device and processing method for non-metal deformable ring directional sizing opening processing

Abstract

The application discloses a clamping device and a processing method for directional and dimensional opening processing of a non-metal deformable circular ring, a first annular platform is connected to a position close to an end face of a cylindrical surface of a cylindrical support, an end face of the first annular platform is flush with an end face of the cylindrical support, an annular sink for placing a to-be-opened circular ring is arranged on the end face of the first annular platform, the radial width of the annular sink is the same as the radial width of the to-be-opened circular ring, and the axial depth of the annular sink is smaller than the axial thickness of the to-be-opened circular ring; a second annular platform is connected to a position close to an end face of a cylindrical surface of a cylindrical pressing support, an end face of the second annular platform is flush with an end face of the cylindrical pressing support, and the cylindrical pressing support and the cylindrical support can be detachably connected; after the cylindrical pressing support and the cylindrical support are connected, the end face of the second annular platform can be in contact with the end face of the first annular platform, and the to-be-opened circular ring can be pressed on the annular sink. The application can effectively overcome the deformable characteristic of the non-metal deformable circular ring, realize high-precision opening processing, and meet the high-quality requirement of the non-metal deformable circular ring in the field of aviation and aerospace.

Description

Technical Field

[0001] This invention belongs to the field of non-metallic easily deformable ring processing technology, specifically relating to a clamping device and processing method for directional and dimensional opening processing of non-metallic easily deformable rings. Background Technology

[0002] In the aerospace field, non-metallic deformable rings are widely used as a key component in various precision devices and structural connections. These rings are typically made of polymer materials, composite materials, or other non-metallic materials, offering advantages such as light weight, corrosion resistance, and good insulation properties. However, their physical characteristics also present processing challenges. In particular, to meet specific functional requirements, these rings need to have openings with specific angles and widths precisely cut into them. The design parameters of these openings, including the opening angle and width, are crucial to ensuring the performance of the entire structure. Generally, the width of the opening is strictly controlled within a narrow range of 0.4 mm to 0.8 mm, a precision requirement that poses a significant challenge to processing technology.

[0003] Non-metallic, easily deformable rings, due to their material properties such as low rigidity and high deformability, make them difficult to machine using traditional methods. During machining, the ring's deformability makes stable clamping in a machining center difficult, compromising machining accuracy. Attempts to open the ring directly on the machining center often result in deviations in the opening angle and width from design requirements due to minute movements or deformations of the ring, severely impacting product quality. Furthermore, while manual opening is an alternative, it falls short in ensuring high precision. Manual operation makes precise control of the opening angle and width difficult, especially within such a narrow width range (0.4mm~0.8mm); even minute errors can lead to performance degradation or failure of the entire structure. Therefore, manual opening is not only inefficient but also fails to meet the stringent requirements of high precision and reliability in the aerospace industry. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a clamping device and processing method for directional and dimensional opening processing of non-metallic deformable rings. This method can effectively overcome the deformability of non-metallic deformable rings and achieve high-precision opening processing to meet the high-quality requirements of the aerospace industry for non-metallic deformable rings.

[0005] To solve the above-mentioned technical problems, the present invention is achieved through the following technical solution:

[0006] According to a first aspect of the present invention, a clamping device is provided for machining a oriented, fixed-size opening in a non-metallic, easily deformable ring, comprising:

[0007] A cylindrical support is provided, wherein a first annular platform is connected to one end face of the cylindrical surface of the cylindrical support, one end face of the first annular platform is flush with one end face of the cylindrical support, and an annular recess is provided on one end face of the first annular platform for placing an annular ring to be opened. The radial width of the annular recess is the same as the radial width of the annular ring to be opened, and the axial depth of the annular recess is less than the axial thickness of the annular ring to be opened.

[0008] A cylindrical pressure seat has a second annular platform connected to one end face of its cylindrical surface. One end face of the second annular platform is flush with one end face of the cylindrical pressure seat. The cylindrical pressure seat and the cylindrical support can be detachably connected. When the cylindrical pressure seat and the cylindrical support are connected, one end face of the second annular platform can contact one end face of the first annular platform, thereby pressing the annular ring to be opened onto the annular platform.

[0009] In one possible implementation of the first aspect, a cylindrical groove is provided at the center of one end face of the cylindrical support, and a cylindrical protrusion matching the cylindrical groove is connected at the center of one end face of the cylindrical pressure seat. The cylindrical groove and the cylindrical protrusion cooperate to realize the detachable connection between the cylindrical pressure seat and the cylindrical support.

[0010] In one possible implementation of the first aspect, an internal thread is provided on the inner wall of the cylindrical groove, and an external thread that mates with the internal thread is provided on the outer cylindrical surface of the cylindrical protrusion. The cylindrical groove and the cylindrical protrusion are connected to the cylindrical pressure seat and the cylindrical support through threaded engagement.

[0011] In one possible implementation of the first aspect, the depth of the cylindrical groove is at least 1 mm greater than the length of the cylindrical protrusion.

[0012] In one possible implementation of the first aspect, the axial depth of the annular recess is 0.15 mm to 0.25 mm smaller than the axial thickness of the annular ring to be opened.

[0013] In one possible implementation of the first aspect, the outer diameter of the first annular platform is the same as the outer diameter of the second annular platform.

[0014] In one possible implementation of the first aspect, the radial width of the first annular platform is 1 mm to 1.5 mm larger than the radial width of the annulus to be opened.

[0015] In one possible implementation of the first aspect, the cylindrical support, the first annular platform, and the annular sink are integrally formed.

[0016] The cylindrical pressure seat and the second annular platform are integrally machined.

[0017] According to a second aspect of the present invention, a processing method for machining a directional, fixed-size opening in a non-metallic, easily deformable ring is provided. Based on the aforementioned clamping device for machining a directional, fixed-size opening in a non-metallic, easily deformable ring, the processing method includes:

[0018] When machining the first ring to be opened, the cylindrical support is first fixed on the fixture, then the ring to be opened is placed on the annular countersink, and then the cylindrical pressure seat is connected to the cylindrical support so that one end face of the second annular platform contacts one end face of the first annular platform, thereby pressing the ring to be opened onto the annular countersink. Finally, a milling cutter is used to mill a groove on the first annular platform and the second annular platform according to a preset tool path, and at the same time, an opening is machined on the ring to be opened. The size of the milling cutter meets the opening width of the ring to be opened, and the preset tool path meets the opening angle of the ring to be opened.

[0019] After completing the opening machining of the first ring to be opened, the cylindrical pressure seat is removed from the cylindrical support, and the first ring to be opened is removed. Then, the next ring to be opened is placed on the annular platform, and the cylindrical pressure seat is connected to the cylindrical support so that one end face of the second annular platform contacts one end face of the first annular platform, thereby pressing the ring to be opened onto the annular platform. Finally, the milling cutter is used to follow the preset tool path, and the milling cutter directly passes through the grooves milled on the first annular platform and the second annular platform to machine the opening on the ring to be opened.

[0020] In one possible implementation of the second aspect, the depth of cut of the milling cutter in the Z direction exceeds the axial thickness of the annulus to be opened by 0.4 mm to 0.7 mm.

[0021] Compared with the prior art, the present invention has at least the following beneficial effects:

[0022] This invention provides a clamping device for directional and dimensional opening machining of non-metallic, easily deformable rings. Through the cooperation of a cylindrical support and a cylindrical pressure seat, the ring to be opened is stably pressed onto an annular countersink using a first annular platform and a second annular platform. This design effectively prevents minor movement or deformation of the non-metallic, easily deformable ring during machining, thereby ensuring that the opening angle and width accurately meet design requirements and improving machining accuracy. The radial width of the annular countersink is the same as the radial width of the ring to be opened, and its axial depth is less than the axial thickness of the ring. This design makes the ring more stable during clamping, less prone to slippage or tilting, and enhances clamping stability. The cylindrical support and cylindrical pressure seat can be easily disassembled and connected, improving machining efficiency. Simultaneously, due to stable clamping, machining interruptions and rework caused by ring deformation are reduced, improving overall machining efficiency. Based on the clamping device of this invention, the machining method, through a preset tool path and a milling cutter that meets the opening width requirements, can accurately machine openings with specific angles and widths in a single operation, satisfying the high-quality requirements of the aerospace industry for non-metallic, easily deformable rings. The machining method employs a continuous machining approach; after machining the opening of the first ring, the next ring can be machined directly without readjusting the fixture or device, significantly improving machining efficiency. Furthermore, the stable and high-precision machining process reduces material waste and rework costs caused by machining errors, thereby lowering the overall machining cost.

[0023] In summary, the clamping device and processing method for oriented and sized opening processing of non-metallic easily deformable rings provided by the present invention have significant advantages in improving processing accuracy, enhancing clamping stability, improving processing efficiency, reducing processing costs, and improving product quality. They are easy to promote and apply, and have great practical value.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of a clamping device for oriented and sized opening processing of a non-metallic easily deformable ring in use, according to an embodiment of the present invention.

[0027] Figure 2This is a schematic diagram of the cylindrical support structure in a clamping device for directional and dimensional opening processing of a non-metallic easily deformable ring according to an embodiment of the present invention.

[0028] Figure 3 This is a schematic diagram of the cylindrical pressure seat in a clamping device for oriented and sized opening processing of a non-metallic easily deformable ring according to an embodiment of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure of the ring to be opened in an embodiment of the present invention;

[0030] Figure 5 This is a schematic diagram showing the specific dimensions of the cylindrical support and cylindrical pressure seat in a clamping device for machining oriented and sized openings of non-metallic easily deformable rings according to an embodiment of the present invention.

[0031] In the figure: 1-cylindrical support; 10-first annular platform; 11-annular recess; 12-cylindrical groove; 2-cylindrical pressure seat; 20-second annular platform; 21-cylindrical protrusion; 3-annular ring to be opened. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Combination Figure 1 , Figure 2 and Figure 3As shown, this embodiment of the invention provides a clamping device for oriented and sized openings in non-metallic deformable rings. The purpose is to solve the problem of difficulty in controlling the machining accuracy of non-metallic deformable rings due to material properties, especially for openings with specific angles (45°) and widths (0.4mm to 0.8mm) that need to be precisely made on the ring. The clamping device includes a cylindrical support 1 and a cylindrical pressure seat 2. A first annular platform 10 is connected to one end face of the cylindrical surface of the cylindrical support 1. One end face of the first annular platform 10 is flush with one end face of the cylindrical support 1. An annular countersunk platform 11 for placing the ring 3 to be opened is provided on one end face of the first annular platform 10. The radial width of the annular countersunk platform 11 is the same as the radial width of the ring 3 to be opened, and the axial depth of the annular countersunk platform 11 is less than the axial thickness of the ring 3 to be opened. A second annular platform 20 is connected to one end face of the cylindrical pressure seat 2. One end face of the second annular platform 20 is flush with one end face of the cylindrical pressure seat 2. The cylindrical pressure seat 2 and the cylindrical support 1 can be detachably connected. When the cylindrical pressure seat 2 and the cylindrical support 1 are connected, one end face of the second annular platform 20 can contact one end face of the first annular platform 10, thereby pressing the ring 3 to be opened onto the annular sink 11.

[0034] Specifically, the cylindrical support 1 serves as the foundation component of the entire clamping device, with a first annular platform 10 connected to one end face of its cylindrical surface. One end face of the first annular platform 10 is flush with one end face of the cylindrical support 1, ensuring they are on the same plane. An annular countersunk 11 is provided on one end face of the first annular platform 10. The radial width of the annular countersunk 11 is the same as the radial width of the ring 3 to be opened, ensuring the ring can be stably placed on the annular countersunk 11 without slipping or shifting. The axial depth of the annular countersunk 11 is less than the axial thickness of the ring 3 to be opened; this design provides a certain amount of compression when clamping the ring 3, enhancing clamping stability. For example, the cylindrical support 1 is made of a high-strength, low-deformation metal material to ensure its durability as a support structure. The annular countersunk 11 is ground to the required dimensions, with its radial width precisely matching the radial width of the ring 3 to be opened, ensuring centering when the ring is placed. Meanwhile, the axial depth of the annular recess 11 is slightly less than the thickness of the ring 3 to be opened, which makes it easier for the ring 3 to be opened to form a small deformation under the action of the pressure seat, thereby achieving a stable clamping effect.

[0035] A cylindrical pressure seat 2 is positioned opposite to a cylindrical support 1, with a second annular platform 20 connected to one end face of its cylindrical surface. One end face of the second annular platform 20 is flush with one end face of the cylindrical pressure seat 2, ensuring uniform force application when clamping the ring 3 to be opened. The cylindrical pressure seat 2 and the cylindrical support 1 are detachably connected, for example by bolts, threads, or other connecting mechanisms, to facilitate easy disassembly and replacement of the ring 3 to be opened after processing. For example, the cylindrical pressure seat 2 is also made of high-strength metal, and its second annular platform 20 is designed with a contact surface that matches the first annular platform 10, ensuring uniform pressure distribution during clamping.

[0036] This embodiment describes a processing method for directional and dimensional opening of a non-metallic easily deformable ring. The ring to be processed is clamped using the aforementioned clamping device for directional and dimensional opening of a non-metallic easily deformable ring, and the opening is then performed. The specific steps are as follows:

[0037] The cylindrical support 1 is fixed to the machine tool table using a standard fixture (such as a three-jaw chuck) to ensure its stable position and prevent any shaking during machining. The ring 3 to be opened is placed on the annular countersunk table 11, using the shape and size of the countersunk table 11 to naturally guide the ring into the correct position. The cylindrical pressure seat 2 is fixed to the cylindrical support 1 using a preset connecting mechanism (such as a thread or locking mechanism), so that the second annular platform 20 is in close contact with the first annular platform 10, thereby stably clamping the ring 3 to be opened onto the annular countersunk table 11. According to the design requirements of the ring 3 to be opened, the size (diameter), speed, feed rate, and preset tool path of the milling cutter are set through the machine tool control system to ensure that the opening width and angle meet the design requirements. The machine tool is started, and the milling cutter cuts through the first annular platform 10 and the second annular platform 20 according to the preset path, while simultaneously passing through the ring 3 to be opened, forming the required opening.

[0038] After machining the first ring 3 to be opened, there is no need to recalibrate the equipment or adjust the parameters; the next round of machining can proceed directly: first, loosen the connecting mechanism, remove the cylindrical pressure seat 2 from the cylindrical support 1, and then remove the machined ring. Repeat the above steps of placing and clamping the ring to prepare for the next ring to be machined. Since the corresponding slots have been milled on the first annular platform 10 and the second annular platform 20, the milling cutter can directly continue machining the new ring 3 to be opened through these slots, improving machining efficiency and accuracy consistency.

[0039] This invention effectively solves the problem of stable clamping of non-metallic, easily deformable rings during machining through a precisely designed clamping device, ensuring machining accuracy. The continuous machining mode reduces preparation time before each machining operation, improving overall machining efficiency. Utilizing the precision of machine tool control and preset toolpaths, precise control of the opening angle and width is achieved, meeting the high-precision requirements of the aerospace field. Because the ring 3 to be machined is stably clamped on the annular countersunk table 11, the problem of deviations in the opening angle and width from design requirements due to minor movement or deformation of the ring during machining is effectively avoided. This effectively solves the technical challenge of machining the opening of non-metallic, easily deformable rings, and has significant practical application value in production.

[0040] In one feasible approach, combining Figures 1 to 3 As shown, a cylindrical groove 12 is provided at the center of one end face of the cylindrical support 1, and a cylindrical protrusion 21 matching the cylindrical groove 12 is connected at the center of one end face of the cylindrical pressure seat 2. The cylindrical groove 12 and the cylindrical protrusion 21 cooperate to realize the detachable connection between the cylindrical pressure seat 2 and the cylindrical support 1.

[0041] In other words, the cylindrical support 1 not only serves as a supporting structure, but its design also fully considers the stability of its connection with the cylindrical pressure seat 2. A cylindrical groove 12 is formed at the center of one end face of the cylindrical support 1. The design of this cylindrical groove 12 not only provides a mating position for the cylindrical pressure seat 2, but also ensures stability and coaxiality after connection through the control of its depth and diameter. A cylindrical protrusion 21, matching the cylindrical groove 12, is connected to the center of one end face of the cylindrical pressure seat 2, and the cylindrical protrusion 21 fits tightly with the cylindrical groove 12. When the cylindrical pressure seat 2 is connected to the cylindrical support 1, the cylindrical protrusion 21 inserts into the cylindrical groove 12, forming a stable connection structure. The fit between the cylindrical groove 12 and the cylindrical protrusion 21 enables a detachable connection between the cylindrical pressure seat 2 and the cylindrical support 1. This connection method is not only simple and convenient, but also has a high degree of coaxiality.

[0042] In one possible implementation, the inner wall of the cylindrical groove 12 is provided with an internal thread, and the outer cylindrical surface of the cylindrical protrusion 21 is provided with an external thread that mates with the internal thread. The cylindrical groove 12 and the cylindrical protrusion 21 are connected to the cylindrical pressure seat 2 and the cylindrical support 1 through the threaded engagement.

[0043] In other words, the inner wall of the cylindrical groove 12 is provided with one or more internal threads, and the outer cylindrical surface of the cylindrical protrusion 21 is provided with one or more external threads that mate with the internal threads of the cylindrical groove 12. The connection between the cylindrical groove 12 and the cylindrical protrusion 21 is achieved through threaded engagement. During the connection process, simply align the external thread of the cylindrical protrusion 21 with the internal thread of the cylindrical groove 12, and rotate the cylindrical pressure seat 2 to tightly connect the two together. This connection method is not only simple and convenient, but also has high stability, effectively avoiding the problem of deviation of the opening angle and width from the design requirements caused by slight movement or deformation of the ring during processing.

[0044] It should be understood that applying some thread-locking agent or lubricant between the cylindrical groove 12 and the cylindrical protrusion 21 can enhance the friction between the threads and prevent the connection from loosening due to vibration or impact during processing.

[0045] In one possible implementation, the depth of the cylindrical groove 12 is at least 1 mm greater than the length of the cylindrical protrusion 21. Preferably, the depth of the cylindrical groove 12 is 1 mm greater than the length of the cylindrical protrusion 21, combined with... Figure 2 and Figure 3 As shown, H1-h1>1mm.

[0046] Specifically, to ensure that one end face of the second annular platform 20 can make tight contact with one end face of the first annular platform 10, the depth of the cylindrical groove 12 is designed to be at least 1 mm greater than the length of the cylindrical protrusion 21. This design margin ensures sufficient contact between the two. In other words, by designing the depth of the cylindrical groove 12 to be at least 1 mm greater than the length of the cylindrical protrusion 21, sufficient contact is ensured between one end face of the second annular platform 20 and one end face of the first annular platform 10, which improves the stability of the clamping effect.

[0047] In one possible implementation, the axial depth of the annular recess 11 is 0.15 mm to 0.25 mm smaller than the axial thickness of the ring 3 to be opened. Preferably, the axial depth of the annular recess 11 is 0.2 mm smaller than the axial thickness of the ring 3 to be opened, combined with... Figure 2 As shown, H is 0.2 mm smaller than the axial thickness of the ring 3 to be opened.

[0048] In other words, the axial depth of the annular recess 11 is controlled to be 0.15mm to 0.25mm smaller than the axial thickness of the ring 3 to be opened. This design margin ensures that when the pressure plate (i.e., the second annular platform 20 of the cylindrical pressure seat 2) presses against the ring 3 to be opened, the ring 3 to be opened can be subjected to sufficient pressure to remain stable, while avoiding significant radial deformation of the ring 3 to be opened due to excessive pressure.

[0049] In one possible implementation, the outer diameter of the first annular platform 10 is the same as the outer diameter of the second annular platform 20.

[0050] Specifically, the outer diameter of the second annular platform 20 is designed to be the same as that of the first annular platform 10, ensuring that when the cylindrical pressure seat 2 is connected to the cylindrical support 1, one end face of the second annular platform 20 can make perfect contact with one end face of the first annular platform 10, achieving a uniform pressing effect between the two, thereby achieving the purpose of pressing the ring 3 to be opened onto the annular sink 11.

[0051] In one possible implementation, the radial width of the first annular platform 10 is 1mm to 1.5mm larger than the radial width of the ring 3 to be opened. This ensures that the milling cutter will not damage the cylindrical support 1 and the cylindrical pressure seat 2 when milling the ring 3. For example, the radial width of the first annular platform 10 is 1mm larger than the radial width of the ring 3 to be opened. Combined with... Figure 2 As shown, ФD1-ФD2 > the radial width of the ring 3 to be opened + 1mm.

[0052] In one feasible embodiment, the cylindrical support 1, the first annular platform 10, and the annular recess 11 are manufactured using a one-piece machining process, meaning they are formed from the same piece of material (such as stainless steel, aluminum alloy, or other materials suitable for non-metallic ring machining) through machining or casting. This one-piece machining design ensures the structural strength between the cylindrical support 1, the first annular platform 10, and the annular recess 11, avoiding machining errors caused by loosening or deformation of connecting parts.

[0053] The cylindrical pressure seat 2 and the second annular platform 20 are also made by integral processing technology, which ensures the structural strength between the cylindrical pressure seat 2 and the second annular platform 20.

[0054] In one embodiment, a processing method for machining a non-metallic easily deformable ring with a directional and fixed-size opening is provided, based on a clamping device for machining a non-metallic easily deformable ring with a directional and fixed-size opening provided in the above embodiments. The specific processing method is as follows:

[0055] When machining the first ring to be opened, the cylindrical support 1 is fixed on a three-jaw chuck, and the ring 3 to be opened is placed on the annular countersunk 11, ensuring that the ring and the annular countersunk 11 are in close contact. The cylindrical pressure seat 2 is connected to the cylindrical support 1, and the cylindrical protrusion 21 is rotated into the cylindrical groove 12 and tightened, so that one end face of the second annular platform 20 is in close contact with one end face of the first annular platform 10, thereby pressing the ring 3 to be opened onto the annular countersunk 11. Using a milling cutter, a groove is milled on the first annular platform 10 and the second annular platform 20 according to the preset tool path, and the opening on the ring 3 to be opened is machined at the same time. The size of the milling cutter must meet the opening width of the ring 3 to be opened, and the preset tool path must meet the opening angle of the ring 3 to be opened. The depth of cut of the milling cutter in the Z direction must exceed the axial thickness of the ring 3 to be opened by 0.4mm to 0.7mm, which ensures that the opening is completed in one go, and avoids damage to the milling cutter due to excessive depth of cut.

[0056] It should be noted that when fixing the outer circle ФD2 of the cylindrical support 1 on the A axis of the machining center, the programming coordinate system 0 point should coincide with the center of the ring 3 to be opened when machining the first piece.

[0057] The subsequent machining process for the rings to be opened is as follows: After completing the opening machining of the first ring 3 to be opened, the cylindrical pressure seat 2 is removed from the cylindrical support 1, and the first ring 3 to be opened is removed. The next ring 3 to be opened is placed on the annular countersunk platform 11, and the above connection and clamping steps are repeated. Using a milling cutter, the cutter follows a preset tool path, directly passing through the grooves previously milled on the first annular platform 10 and the second annular platform 20, to machine the opening on the ring 3 to be opened.

[0058] For example, in combination Figure 4 and Figure 5 As shown, in this embodiment, the material of the ring 3 to be opened is a protective ring part of SFB-2. The thickness of the ring 3 along the axial direction is 1mm, the width of the ring 3 along the radial direction is 1.5mm, the required opening width is 0.4+0.40mm, the required opening angle is 45°±1°, the inner diameter of the ring 3 to be opened is Ф48.6+0.10, and the outer diameter is Ф51.40-0.1. Figure 5 Design and manufacture clamping devices to process parts on machining centers, resulting in stable part quality and high processing efficiency.

[0059] In the description of this invention, it should be understood that the terms "upper", "lower", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0060] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0061] In this invention, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0062] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0063] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0064] Finally, it should be noted that the above-described embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the technical scope disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A machining method for machining a non-metallic deformable torus directional dimensioned opening, characterized in that, A clamping device for machining oriented and sized openings in non-metallic, easily deformable rings includes: A cylindrical support (1) is provided with a first annular platform (10) connected to one end face of the cylindrical surface of the cylindrical support (1). One end face of the first annular platform (10) is flush with one end face of the cylindrical support (1). An annular recess (11) for placing the ring to be opened (3) is provided on one end face of the first annular platform (10). The radial width of the annular recess (11) is the same as the radial width of the ring to be opened (3). The axial depth of the annular recess (11) is less than the axial thickness of the ring to be opened (3). A cylindrical pressure seat (2) is provided, with a second annular platform (20) connected to one end face of the cylindrical surface of the cylindrical pressure seat (2). One end face of the second annular platform (20) is flush with one end face of the cylindrical pressure seat (2). The cylindrical pressure seat (2) and the cylindrical support (1) are detachably connected. When the cylindrical pressure seat (2) and the cylindrical support (1) are connected, one end face of the second annular platform (20) can contact one end face of the first annular platform (10), thereby pressing the ring (3) to be opened onto the annular countersunk platform (11). Processing methods include: When processing the first ring (3) to be opened, first fix the cylindrical support (1) on the fixture, then place the ring (3) to be opened on the annular countersink (11), then connect the cylindrical pressure seat (2) to the cylindrical support (1), so that one end face of the second annular platform (20) contacts one end face of the first annular platform (10), thereby pressing the ring (3) to be opened on the annular countersink (11), and finally use a milling cutter to follow the preset tool path to mill a groove on the first annular platform (10) and the second annular platform (20), and at the same time process the opening on the ring (3) to be opened. The size of the milling cutter meets the opening width of the ring (3) to be opened, and the preset tool path meets the opening angle of the ring (3) to be opened. After completing the opening of the first ring (3) to be opened, the cylindrical pressure seat (2) is removed from the cylindrical support (1), and the first ring (3) to be opened is removed. Then the next ring (3) to be opened is placed on the annular platform (11). Then the cylindrical pressure seat (2) is connected to the cylindrical support (1), so that one end face of the second annular platform (20) contacts one end face of the first annular platform (10), thereby pressing the ring (3) to be opened onto the annular platform (11). Finally, the milling cutter is used to follow the preset cutting path. The milling cutter passes directly through the grooves milled on the first annular platform (10) and the second annular platform (20) to process the opening on the ring (3) to be opened.

2. The processing method for oriented and dimensionally fixed opening of a non-metallic easily deformable ring according to claim 1, characterized in that, A cylindrical groove (12) is provided at the center of one end face of the cylindrical support (1), and a cylindrical protrusion (21) matching the cylindrical groove (12) is connected at the center of one end face of the cylindrical pressure seat (2). The cylindrical groove (12) and the cylindrical protrusion (21) cooperate to realize the detachable connection between the cylindrical pressure seat (2) and the cylindrical support (1).

3. A processing method for oriented and dimensionally fixed opening of a non-metallic easily deformable ring according to claim 2, characterized in that, The inner wall of the cylindrical groove (12) is provided with an internal thread, and the outer cylindrical surface of the cylindrical protrusion (21) is provided with an external thread that matches the internal thread. The cylindrical groove (12) and the cylindrical protrusion (21) are connected to the cylindrical pressure seat (2) and the cylindrical support (1) through the threaded engagement.

4. A processing method for oriented and dimensionally fixed opening of a non-metallic easily deformable ring according to claim 2, characterized in that, The depth of the cylindrical groove (12) is at least 1 mm greater than the length of the cylindrical protrusion (21).

5. A processing method for oriented and dimensionally fixed opening of a non-metallic easily deformable ring according to claim 1, characterized in that, The depth of the annular recess (11) along the axial direction is 0.15mm~0.25mm smaller than the thickness of the circular ring (3) to be opened along the axial direction.

6. A processing method for oriented and dimensionally fixed opening of a non-metallic easily deformable ring according to claim 1, characterized in that, The outer diameter of the first annular platform (10) is the same as the outer diameter of the second annular platform (20).

7. A processing method for oriented and dimensionally fixed opening of a non-metallic easily deformable ring according to claim 6, characterized in that, The radial width of the first annular platform (10) is 1 mm to 1.5 mm larger than the radial width of the ring (3) to be opened.

8. A processing method for oriented and dimensionally fixed opening of a non-metallic easily deformable ring according to claim 1, characterized in that, The cylindrical support (1), the first annular platform (10), and the annular sinkhole (11) are integrally formed; The cylindrical pressure seat (2) and the second annular platform (20) are integrally formed.

9. A processing method for oriented and dimensionally fixed opening of a non-metallic easily deformable ring according to claim 1, characterized in that, The cutting depth of the milling cutter in the Z direction exceeds the axial thickness of the ring (3) to be opened by 0.4 mm to 0.7 mm.

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