Clamping device and machining method for machining directional and fixed-size opening of non-metal easily-deformed circular ring

Abstract

The invention discloses a clamping device and a machining method for machining a directional and fixed-size opening of a non-metal easily-deformed circular ring. A first annular platform is connected to the position, close to one end face, of the cylindrical face of a cylindrical support, and one end face of the first annular platform is flush with one end face of the cylindrical support; one end face of the first annular platform is provided with an annular sinking table used for containing a to-be-opened circular ring, the radial width of the annular sinking table is the same as that of the to-be-opened circular ring, and the axial depth of the annular sinking table is smaller than the axial thickness of the to-be-opened circular ring. A second annular platform is connected to the position, close to one end face, of the cylindrical face of the cylindrical pressing base, one end face of the second annular platform is flush with one end face of the cylindrical pressing base, and the cylindrical pressing base and the cylindrical support can be detachably connected. After the cylindrical pressing base is connected with the cylindrical support, one end face of the second annular platform can make contact with one end face of the first annular platform, and the to-be-opened circular ring is tightly pressed on the annular sinking table. The method can effectively overcome the easy deformation characteristic of the non-metal easy-to-deform circular ring, realizes high-precision opening processing, and meets the high-quality requirement of the aerospace field on the non-metal easy-to-deform circular ring.

Description

Technical Field

[0001] The invention belongs to the technical field of non-metallic deformable ring processing, and in particular relates to a clamping device and a processing method for directional and sizing opening processing of a non-metallic deformable ring. Background Art

[0002] In the field of aerospace, non-metallic deformable rings are widely used as a key component in various precision devices and structural connections. Such rings are usually made of polymer materials, composite materials or other non-metallic materials, and have the advantages of light weight, corrosion resistance, and good insulation properties, but their physical properties also bring processing problems. In particular, in order to meet specific functional requirements, these rings need to be precisely opened with openings of specific angles and specific widths. The design parameters of these openings, including the opening angle and opening width, are crucial to ensuring the performance of the entire structure. Generally speaking, the width of the opening is strictly controlled within a narrow range of 0.4mm to 0.8mm. This precision requirement is extremely high and poses a challenge to processing technology.

[0003] Due to its material properties, such as low rigidity and easy deformation, non-metallic deformable rings make it difficult to directly apply traditional mechanical processing methods. During the processing, the deformability of the ring makes it difficult to stably clamp it in the machining center, and thus the machining accuracy cannot be ensured. Attempts to perform opening operations directly on the machining center often cause the angle and width of the opening to deviate from the design requirements due to slight movement or deformation of the ring, seriously affecting product quality. In addition, manual opening, as an alternative, although it can be dealt with to a certain extent, has obvious shortcomings in ensuring high precision. It is difficult to accurately control the angle and width of the opening by manual operation, especially in such a narrow width range (0.4mm~0.8mm), and even a small error may cause the performance of the entire structure to deteriorate or fail. Therefore, manual opening is not only inefficient, but also cannot meet the strict requirements of high precision and high reliability in the aerospace field. Summary of the invention

[0004] In response to the problems existing in the prior art, the present invention provides a clamping device and a processing method for directional and sized opening processing of non-metallic deformable rings, which can effectively overcome the easy deformation characteristics of non-metallic deformable rings and achieve high-precision opening processing to meet the high quality requirements of non-metallic deformable rings in the aerospace field.

[0005] In order to solve the above technical problems, the present invention is implemented by the following technical solutions: According to a first aspect of the present invention, there is provided a clamping device for directional and sizing opening processing of a non-metallic deformable ring, comprising: A cylindrical support, wherein a first annular platform is connected to a position near one end surface on the cylindrical surface of the cylindrical support, one end surface of the first annular platform is flush with one end surface of the cylindrical support, and an annular sink for placing a circular ring to be opened is arranged on one end surface of the first annular platform, the radial width of the annular sink is the same as the radial width of the circular ring to be opened, and the axial depth of the annular sink is less than the axial thickness of the circular ring to be opened; A cylindrical pressure seat, a second annular platform is connected to a position near one end face of the cylindrical surface of the cylindrical pressure seat, one end face of the second annular platform is flush with one end face of the cylindrical pressure seat, and the cylindrical pressure seat and the cylindrical support can be detachably connected; when the cylindrical pressure seat is connected to the cylindrical support, one end face of the second annular platform can contact one end face of the first annular platform, so as to press the circular ring to be opened onto the annular sinking platform.

[0006] In a possible implementation of the first aspect, a cylindrical groove is provided at the center position of one end surface of the cylindrical support, and a cylindrical boss matching the cylindrical groove is connected to the center position of one end surface of the cylindrical pressure seat, and the cylindrical groove and the cylindrical boss cooperate to achieve a detachable connection between the cylindrical pressure seat and the cylindrical support.

[0007] In a possible implementation of the first aspect, an internal thread is provided on the inner wall surface of the cylindrical groove, and an external thread matching the internal thread is provided on the outer cylindrical surface of the cylindrical boss. The cylindrical groove and the cylindrical boss are connected to the cylindrical pressure seat and the cylindrical support through threaded cooperation.

[0008] In a possible implementation manner of the first aspect, a depth of the cylindrical groove is at least 1 mm greater than a length of the cylindrical boss.

[0009] In a possible implementation manner of the first aspect, the depth of the annular sink along the axial direction is 0.15 mm to 0.25 mm smaller than the thickness of the circular ring to be opened along the axial direction.

[0010] In a possible implementation manner of the first aspect, an outer diameter of the first annular platform is the same as an outer diameter of the second annular platform.

[0011] In a possible implementation manner of the first aspect, a radial width of the first annular platform is 1 mm to 1.5 mm greater than a radial width of the circular ring to be opened.

[0012] In a possible implementation of the first aspect, the cylindrical support, the first annular platform, and the annular sink are integrally formed; The cylindrical pressure seat and the second annular platform are integrally formed.

[0013] According to a second aspect of the present invention, a processing method for directional sizing opening processing of a non-metallic deformable ring is provided. Based on the clamping device for directional sizing opening processing of a non-metallic deformable ring, the processing method comprises: When processing the first circular ring to be opened, first fix the cylindrical support on the fixture, then place the circular ring to be opened on the annular sink, then connect the cylindrical pressing seat with the cylindrical support, so that one end face of the second annular platform contacts one end face of the first annular platform, so as to press the circular ring to be opened on the annular sink, and finally use the milling cutter to move along the preset tool path to mill a groove on the first annular platform and the second annular platform, and at the same time process the opening on the circular ring to be opened, wherein the size of the milling cutter meets the opening width of the circular ring to be opened, and the preset tool path meets the opening angle of the circular ring to be opened; After completing the opening processing of the first circular ring to be opened, the cylindrical pressure seat is removed from the cylindrical support, and the first circular ring to be opened is taken down, and then the next circular ring to be opened is placed on the annular sinking platform, 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, so that the circular ring to be opened is pressed tightly on the annular sinking platform, and finally the milling cutter is used to move the tool according to 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 process the opening on the circular ring to be opened. In a possible implementation manner of the second aspect, the cutting depth of the milling cutter in the Z direction exceeds the axial thickness of the circular ring to be opened by 0.4 mm to 0.7 mm.

[0014] Compared with the prior art, the present invention has at least the following beneficial effects: The present invention provides a clamping device for directional and sized opening processing of non-metallic easily deformable circular rings. Through the cooperation of a cylindrical support and a cylindrical pressure seat, the circular ring to be opened is stably pressed on the annular sink table by using a first annular platform and a second annular platform. This design effectively prevents the non-metallic easily deformable circular ring from slightly moving or deforming during the processing, thereby ensuring that the angle and width of the opening can accurately meet the design requirements and improve the processing accuracy. The radial width of the annular sink table is the same as the radial width of the circular ring to be opened, and the depth along the axial direction is less than the axial thickness of the circular ring to be opened. This design makes the circular ring more stable during clamping, and is not prone to sliding or tilting, thereby enhancing the stability of the clamping. The cylindrical support and the cylindrical pressure seat can be easily disassembled and connected, thereby improving the processing efficiency. At the same time, due to the stable clamping, the processing interruption and rework caused by the deformation of the circular ring are reduced, thereby improving the overall processing efficiency. Based on the clamping device of the present invention, the processing method can accurately process an opening with a specific angle and a specific width in one go by presetting the tool path and a milling cutter that meets the opening width requirements, thereby meeting the high-quality requirements of the aerospace field for non-metallic deformable rings. The processing method adopts a continuous processing method. After completing the opening processing of the first ring, the next ring can be directly processed without re-adjusting the fixture or device, which greatly improves the processing efficiency. In addition, since the processing process is stable and accurate, the material waste and rework costs caused by processing errors are reduced, thereby reducing the overall processing cost.

[0015] In summary, the clamping device and processing method for directional and sized opening processing of non-metallic easily deformable circular 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. It is easy to promote and apply and has great practical value.

[0016] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the specific implementation modes of the present invention, the drawings required for use in the description of the specific implementation modes will be briefly introduced below. Obviously, the drawings described below are some implementation modes of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a clamping device in use for directional and sizing opening processing of a non-metallic easily deformable circular ring according to an embodiment of the present invention; Figure 2It is a structural schematic diagram of a cylindrical support in a clamping device for directional and sizing opening processing of a non-metallic easily deformable circular ring according to an embodiment of the present invention; Figure 3 It is a schematic structural diagram of a cylindrical pressing seat in a clamping device for directional and sizing opening processing of a non-metallic easily deformable circular ring according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of a circular ring to be opened in an embodiment of the present invention; Figure 5 The present invention is a schematic diagram of the specific dimensions of a cylindrical support and a cylindrical pressure seat in a clamping device for directional and sizing opening processing of a non-metallic easily deformable ring according to an embodiment of the present invention.

[0019] In the figure: 1-cylindrical support; 10-first annular platform; 11-annular sink; 12-cylindrical groove; 2-cylindrical pressure seat; 20-second annular platform; 21-cylindrical boss; 3-circular ring to be opened. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] Combination Figure 1 , Figure 2 and Figure 3As shown, an embodiment of the present invention provides a clamping device for directional and sized opening processing of non-metallic easily deformable circular rings, the purpose of which is to solve the problem that the processing accuracy of non-metallic easily deformable circular rings is difficult to control due to material characteristics during processing, especially for openings with a specific angle (45°) and a specific width (0.4mm to 0.8mm) that need to be accurately opened on the circular ring. The clamping device includes a cylindrical support 1 and a cylindrical pressing seat 2. A first annular platform 10 is connected to a position close to one end face on 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 sink 11 for placing a circular ring 3 to be opened is provided on one end face of the first annular platform 10. The radial width of the annular sink 11 is the same as the radial width of the circular ring 3 to be opened, and the axial depth of the annular sink 11 is less than the axial thickness of the circular ring 3 to be opened. A second annular platform 20 is connected to a position near one end face on the cylindrical surface of the cylindrical pressure seat 2, and one end face of the second annular platform 20 is flush with one end face of the cylindrical pressure seat 2, and the cylindrical pressure seat 2 and the cylindrical support 1 can be detachably connected; when the cylindrical pressure seat 2 is connected to the cylindrical support 1, one end face of the second annular platform 20 can contact one end face of the first annular platform 10, so as to press the circular ring 3 to be opened onto the annular sink 11.

[0022] Specifically, the cylindrical support 1 serves as the basic component of the entire clamping device, and a first annular platform 10 is connected to a position near one end face on its cylindrical surface. One end face of the first annular platform 10 is flush with one end face of the cylindrical support 1, ensuring that the two are on the same plane. An annular sink 11 is arranged on one end face of the first annular platform 10, and the radial width of the annular sink 11 is the same as the radial width of the circular ring 3 to be opened, ensuring that the circular ring can be stably placed on the annular sink 11 and is not easy to slip or shift. The depth of the annular sink 11 along the axial direction is less than the axial thickness of the circular ring 3 to be opened. Such a design can provide a certain amount of compression when the circular ring 3 to be opened is pressed, thereby enhancing the stability of the clamping. Exemplarily, the cylindrical support 1 is made of a high-strength, low-deformation metal material to ensure its durability as a supporting structure. The annular sink 11 is ground to the required size, and its radial width accurately matches the radial width of the circular ring 3 to be opened, ensuring the centering of the circular ring when it is placed. At the same time, the axial depth of the annular sink 11 is slightly smaller than the thickness of the circular ring 3 to be opened, so that the circular ring 3 to be opened can be slightly deformed under the action of the pressure seat, thereby achieving a stable clamping effect.

[0023] The cylindrical press seat 2 is arranged opposite to the cylindrical support 1, and a second annular platform 20 is connected to the cylindrical surface of the cylindrical press seat 2 near one end surface. One end surface of the second annular platform 20 is flush with one end surface of the cylindrical press seat 2, ensuring that force can be evenly applied when the circular ring 3 to be opened is pressed. The cylindrical press seat 2 and the cylindrical support 1 can be detachably connected, for example, by bolts, threads or other connecting mechanisms, so that the circular ring 3 to be opened can be easily removed and replaced after the processing is completed. Exemplarily, the cylindrical press seat 2 is also made of high-strength metal material, and the second annular platform 20 thereon is designed with a contact surface that matches the first annular platform 10, ensuring that uniform pressure distribution can be provided during the clamping process.

[0024] The present embodiment provides a processing method for directional sizing opening processing of a non-metallic easily deformable circular ring, which uses the above-mentioned clamping device for directional sizing opening processing of a non-metallic easily deformable circular ring to clamp the circular ring to be processed, and then performs opening processing, which is specifically as follows: Fix the cylindrical support 1 on the machine tool workbench through a standard fixture (such as a three-jaw chuck) to ensure that the position of the cylindrical support 1 is stable and avoid any shaking during the processing. Place the circular ring 3 to be opened on the annular sink 11, and use the shape and size of the annular sink 11 to naturally guide the correct placement of the ring. Fix the cylindrical press seat 2 and the cylindrical support 1 through a preset connection mechanism (such as a thread, a locking mechanism) so that the second annular platform 20 is in close contact with the first annular platform 10, so that the circular ring 3 to be opened is stably clamped on the annular sink 11. According to the design requirements of the circular ring 3 to be opened, the size (diameter), rotation speed, feed speed 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. Start the machine tool, and the milling cutter cuts through the first annular platform 10 and the second annular platform 20 according to the preset trajectory, and passes through the circular ring 3 to be opened at the same time to form the required opening.

[0025] After completing the processing of the first circular ring 3 to be opened, there is no need to recalibrate the equipment or adjust the parameters, and directly proceed to the next round of processing: first loosen the connection mechanism, remove the cylindrical press seat 2 from the cylindrical support 1, and then take out the processed circular ring. Repeat the above steps of placing the circular ring and clamping the circular ring to prepare the next circular ring to be processed. Since the corresponding notches have been milled on the first annular platform 10 and the second annular platform 20, the milling cutter can directly continue to process the new circular ring 3 to be opened through this notch, which improves the processing efficiency and precision consistency.

[0026] The present invention effectively solves the problem of stable clamping of non-metallic easily deformed circular rings during the processing process through a precisely designed clamping device, thereby ensuring processing accuracy. The continuous processing mode is adopted to reduce the preparation time before each processing and improve the overall processing efficiency. By utilizing the accuracy of machine tool control and the preset tool path, precise control of the opening angle and width is achieved to meet the high-precision requirements in the aerospace field. Since the circular ring 3 to be processed is stably clamped on the annular sink 11, the problem of the opening angle and width deviating from the design requirements due to slight movement or deformation of the circular ring during the processing can be effectively avoided, effectively solving the technical difficulties in the opening processing of non-metallic easily deformed circular rings, and has important practical application value in production practice.

[0027] In one possible implementation, combining Figures 1 to 3 As shown, a cylindrical groove 12 is opened at the center position of one end face of the cylindrical support 1, and a cylindrical boss 21 matching the cylindrical groove 12 is connected to the center position of one end face of the cylindrical pressure seat 2. The cylindrical groove 12 and the cylindrical boss 21 cooperate to realize the detachable connection between the cylindrical pressure seat 2 and the cylindrical support 1.

[0028] That is to say, the cylindrical support 1 not only serves as a supporting structure, but its design also fully considers the connection stability with the cylindrical press seat 2. A cylindrical groove 12 is provided at the center position of one end face of the cylindrical support 1. The design of the cylindrical groove 12 not only provides a docking position for the cylindrical press seat 2, but also ensures the stability and coaxiality after the connection through the control of its depth and diameter. A cylindrical boss 21 matching the cylindrical groove 12 is connected to the center position of one end face of the cylindrical press seat 2, and the cylindrical boss 21 is tightly matched with the cylindrical groove 12. When the cylindrical press seat 2 is connected to the cylindrical support 1, the cylindrical boss 21 will be inserted into the cylindrical groove 12 to form a stable connection structure. The cooperation between the cylindrical groove 12 and the cylindrical boss 21 realizes the detachable connection between the cylindrical press seat 2 and the cylindrical support 1. This connection method is not only simple and convenient, but also has a high coaxiality.

[0029] In one possible implementation, an internal thread is provided on the inner wall surface of the cylindrical groove 12, and an external thread matching the internal thread is provided on the outer cylindrical surface of the cylindrical boss 21. The cylindrical groove 12 and the cylindrical boss 21 are connected to the cylindrical pressure seat 2 and the cylindrical support 1 through threaded cooperation.

[0030] That is to say, one or more sections of internal threads are provided on the inner wall surface of the cylindrical groove 12, and one or more sections of external threads are provided on the outer cylindrical surface of the cylindrical boss 21 to match the internal threads of the cylindrical groove 12. The connection between the cylindrical groove 12 and the cylindrical boss 21 is achieved by threaded matching. During the connection process, it is only necessary to align the external thread portion of the cylindrical boss 21 with the internal thread portion of the cylindrical groove 12 and rotate the cylindrical press seat 2 to make the two tightly connected together. This connection method is not only simple and convenient, but also has high stability, which can effectively avoid the problem of the opening angle and width deviating from the design requirements due to the slight movement or deformation of the ring during the processing.

[0031] It should be understood that some thread locking agent or lubricant may be applied between the cylindrical groove 12 and the cylindrical boss 21 to enhance the friction between the threads and prevent the connection from loosening due to vibration or impact during processing.

[0032] In one 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. Figure 2 and Figure 3 As shown, H1-h1>1mm.

[0033] Specifically, in order to ensure that one end face of the second annular platform 20 can be in close 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, and 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, it is ensured that one end face of the second annular platform 20 can form sufficient contact with one end face of the first annular platform 10, and this contact improves the stability of the pressing effect.

[0034] In one possible implementation, the depth of the annular sink 11 along the axial direction is 0.15 mm to 0.25 mm less than the thickness of the circular ring 3 to be opened along the axial direction. Preferably, the depth of the annular sink 11 along the axial direction is 0.2 mm less than the thickness of the circular ring 3 to be opened along the axial direction. Figure 2 As shown, H is 0.2 mm smaller than the axial thickness of the circular ring 3 to be opened.

[0035] That is to say, the depth of the annular sink 11 along the axial direction is controlled to be 0.15mm-0.25mm smaller than the thickness of the circular ring 3 to be opened along the axial direction. This design margin ensures that when the pressing plate (i.e., the second annular platform 20 of the cylindrical pressing seat 2) presses the circular ring 3 to be opened, the circular ring 3 to be opened can be subjected to sufficient pressure to remain stable, while avoiding obvious radial deformation of the circular ring 3 to be opened due to excessive pressure.

[0036] In one achievable manner, the outer diameter of the first annular platform 10 is the same as the outer diameter of the second annular platform 20 .

[0037] Specifically, the outer diameter of the second annular platform 20 is designed to be the same as the outer diameter 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 perfectly contact one end face of the first annular platform 10, achieving a uniform pressing effect between the two, thereby achieving the purpose of pressing the circular ring 3 to be opened onto the annular sink 11.

[0038] In one practicable manner, the radial width of the first annular platform 10 is 1 mm to 1.5 mm greater than the radial width of the circular ring 3 to be opened, so as to ensure that the milling cutter will not damage the cylindrical support 1 and the cylindrical pressing seat 2 when the milling cutter performs milling processing on the circular ring 3 to be opened. Exemplarily, the radial width of the first annular platform 10 is 1 mm greater than the radial width of the circular ring 3 to be opened. Figure 2 As shown, ФD1-ФD2>the radial width of the circular ring 3 to be opened+1mm.

[0039] In one achievable manner, the cylindrical support 1, the first annular platform 10 and the annular sink 11 are made by an integrated processing technology, that is, they are formed at one time by machining or casting from the same piece of material (such as stainless steel, aluminum alloy or other materials suitable for non-metallic ring processing). The integrated processing design ensures the structural strength between the cylindrical support 1, the first annular platform 10 and the annular sink 11, and avoids processing errors caused by loosening or deformation of the connecting parts.

[0040] The cylindrical pressing seat 2 and the second annular platform 20 are also manufactured by an integrated processing and molding technology, thereby ensuring the structural strength between the cylindrical pressing seat 2 and the second annular platform 20 .

[0041] In one embodiment, a processing method for directional sizing opening processing of a non-metallic deformable ring is provided based on a clamping device for directional sizing opening processing of a non-metallic deformable ring provided in the above embodiment. The processing method is specifically as follows: When processing the first circular ring to be opened, fix the cylindrical support 1 on the three-jaw chuck, and place the circular ring 3 to be opened on the annular sink 11 to ensure that the circular ring is in close contact with the annular sink 11. Connect the cylindrical press seat 2 with the cylindrical support 1, and rotate the cylindrical boss 21 into the cylindrical groove 12 and tighten it, 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, so that the circular ring 3 to be opened is pressed on the annular sink 11. Use the milling cutter to move according to the preset tool path, mill a groove on the first annular platform 10 and the second annular platform 20, and process the opening on the circular ring 3 to be opened at the same time. The size of the milling cutter must meet the opening width of the circular ring 3 to be opened, and the preset tool path must meet the opening angle of the circular ring 3 to be opened. The cutting depth of the milling cutter in the Z direction must exceed 0.4mm to 0.7mm of the axial thickness of the circular ring 3 to be opened, which not only ensures that the opening processing is completed in one time, but also avoids damage to the milling cutter caused by excessive cutting depth.

[0042] It should be noted that the ØD2 outer circle of the cylindrical support 1 is fixed on the A axis of the machining center, and it is required that when the first circular ring 3 to be opened is processed, the 0 point of the programming coordinate system coincides with the center of the circular ring 3 to be opened.

[0043] The subsequent processing of the ring to be opened is as follows: after the opening processing of the first ring to be opened 3 is completed, the cylindrical press seat 2 is disassembled from the cylindrical support 1, and the first ring to be opened 3 is removed. The next ring to be opened 3 is placed on the annular sink 11, and the above connection and pressing steps are repeated. The milling cutter is used to move the tool according to the preset tool path, and the milling cutter directly passes through the grooves previously milled on the first annular platform 10 and the second annular platform 20 to process the opening on the ring to be opened 3.

[0044] Exemplary, combined Figure 4 and Figure 5 As shown, in this embodiment, the material of the ring 3 to be opened is the protection ring part of SFB-2, the thickness of the ring 3 to be opened along the axial direction is 1mm, the width of the ring 3 to be opened 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 Ф51.4 0-0.1. Figure 5 Design and manufacture clamping devices to process parts on machining centers, with stable quality and efficient processing.

[0045] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "connected", "connection" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0050] Finally, it should be noted that the above-described embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above-described embodiments, ordinary technicians in the field should understand that any technician familiar with the technical field can still modify the technical solutions recorded in the above-described embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A clamping device for directional and sizing opening processing of non-metallic deformable rings, characterized in that: include: A cylindrical support (1), wherein a first annular platform (10) is connected to a position on the cylindrical surface of the cylindrical support (1) near one end surface, one end surface of the first annular platform (10) is flush with one end surface of the cylindrical support (1), and an annular sink (11) for placing a circular ring (3) to be opened is arranged on one end surface of the first annular platform (10), the radial width of the annular sink (11) is the same as the radial width of the circular ring (3) to be opened, and the axial depth of the annular sink (11) is less than the axial thickness of the circular ring (3) to be opened; A cylindrical pressing seat (2), wherein a second annular platform (20) is connected to a position on the cylindrical surface of the cylindrical pressing seat (2) near one end face, one end face of the second annular platform (20) is flush with one end face of the cylindrical pressing seat (2), and the cylindrical pressing seat (2) and the cylindrical support (1) are detachably connected; when the cylindrical pressing 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 circular ring (3) to be opened onto the annular sink (11).

2. A clamping device for directional and sizing opening processing of non-metallic deformable rings according to claim 1, characterized in that: A cylindrical groove (12) is provided at the center of one end surface of the cylindrical support (1), and a cylindrical protrusion (21) matching the cylindrical groove (12) is connected to the center of one end surface of the cylindrical pressure seat (2). The cylindrical groove (12) cooperates with the cylindrical protrusion (21) to achieve a detachable connection between the cylindrical pressure seat (2) and the cylindrical support (1).

3. A clamping device for directional and sizing opening processing of non-metallic deformable rings according to claim 2, characterized in that: An internal thread is provided on the inner wall surface of the cylindrical groove (12), and an external thread matching the internal thread is provided on the outer cylindrical surface of the cylindrical boss (21). The cylindrical groove (12) and the cylindrical boss (21) are connected to the cylindrical pressure seat (2) and the cylindrical support (1) through threaded matching.

4. A clamping device for directional and sizing opening processing of non-metallic deformable rings 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 clamping device for directional and sizing opening processing of non-metallic deformable rings according to claim 1, characterized in that: The depth of the annular sink (11) along the axial direction is 0.15 mm to 0.25 mm less than the thickness of the circular ring (3) to be opened along the axial direction.

6. A clamping device for directional and sizing opening processing of non-metallic deformable rings 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 clamping device for directional and sizing opening processing of non-metallic deformable rings according to claim 6, characterized in that: The radial width of the first annular platform (10) is 1 mm to 1.5 mm greater than the radial width of the circular ring (3) to be opened.

8. A clamping device for directional and sizing opening processing of non-metallic deformable rings according to claim 1, characterized in that: The cylindrical support (1), the first annular platform (10) and the annular sink (11) are integrally formed; The cylindrical pressure seat (2) and the second annular platform (20) are integrally formed.

9. A method for directional and sizing opening of a non-metallic deformable ring, characterized in that: A clamping device for directional and sizing opening processing of a non-metallic deformable ring according to any one of claims 1 to 8, the processing method comprises: When processing the first circular ring (3) to be opened, the cylindrical support (1) is first fixed on the fixture, and then the circular ring (3) to be opened is placed on the annular sink (11), and then the cylindrical pressing seat (2) is connected to the cylindrical support (1), so that one end surface of the second annular platform (20) contacts one end surface of the first annular platform (10), so that the circular ring (3) to be opened is pressed tightly on the annular sink (11), and finally a milling cutter is used to move along a preset tool path to mill a groove on the first annular platform (10) and the second annular platform (20), and at the same time, an opening on the circular ring (3) to be opened is processed, wherein the size of the milling cutter meets the opening width of the circular ring (3) to be opened, and the preset tool path meets the opening angle of the circular ring (3) to be opened; After the opening processing of the first circular ring (3) to be opened is completed, the cylindrical pressing seat (2) is disassembled from the cylindrical support (1), and the first circular ring (3) to be opened is removed, and then the next circular ring (3) to be opened is placed on the annular sink (11), and then the cylindrical pressing 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), so that the circular ring (3) to be opened is pressed tightly on the annular sink (11), and finally a milling cutter is used to move the tool according to a preset tool path, and the milling cutter directly passes through the grooves milled on the first annular platform (10) and the second annular platform (20) to process the opening on the circular ring (3) to be opened.

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

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