Arc-shaped hole cover machining device

By setting multiple equally spaced arc-shaped mounting grooves on the outer circumference of the fixed body of the arc-shaped hole cover processing device, and using screws to fasten the workpiece, the problem of low processing efficiency of arc-shaped hole covers is solved, and efficient mass production and improved positioning accuracy are achieved.

CN121756128APending Publication Date: 2026-03-31SHANXI FENXI HEAVY IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-01-20
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing technologies have low processing efficiency for arc-shaped hole covers, making it difficult to meet the needs of mass production.

Method used

Design an arc-shaped hole cover processing device, which adopts a fixed body with multiple equally spaced arc-shaped mounting grooves on the outer circumference. The workpiece is fastened in the groove with screws, so as to realize the simultaneous processing of multiple hole covers.

Benefits of technology

It significantly improves processing efficiency, ensures positioning accuracy and finished product size consistency, avoids loosening or displacement of workpieces during processing, and is suitable for mass production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The embodiment of the invention discloses an arc-shaped hole cover machining device which comprises a fixing main body, and a plurality of arc-shaped mounting grooves formed at equal intervals are formed in the peripheral surface of the fixing main body; the shape of each arc-shaped mounting groove is matched with that of a workpiece to be machined; the radian of the fixing body is consistent with that of a workpiece to be machined. And the machining efficiency and the forming consistency of the arc-shaped hole cover are improved.
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Description

Technical Field

[0001] This invention relates to the field of machining, and more particularly to a device for machining arc-shaped hole covers. Background Technology

[0002] Generally, underwater vehicles have a relatively long hull, composed of multiple sections. These sections are fastened together with connecting bolts, which are located in recesses within the hull. These recesses are covered with curved caps. In addition, some sections may have operating ports, which are also covered with curved caps to maintain the overall streamlined shape of the hull.

[0003] The machining of this type of arc-shaped cover plate is relatively complex, especially the arc-shaped surface. Such parts are generally machined by CNC machining centers. The time required to machine a set of arc-shaped hole covers is relatively long, which does not meet the needs of mass production.

[0004] There is currently no effective solution to the problem of low processing efficiency of arc-shaped hole covers in existing technologies. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides an arc-shaped hole cover processing device. By setting a fixed body, multiple arc-shaped hole covers can be simultaneously mounted on the fixed body. The outer circumferential surface of the fixed body is used as a reference for processing the outer surface of the workpiece, thereby processing multiple arc-shaped hole covers at once, thus solving the problem of low processing efficiency of arc-shaped hole covers in the prior art.

[0006] To achieve the above objectives, the present invention provides an arc-shaped hole cover processing device, comprising: a fixed body, wherein the outer peripheral surface of the fixed body is provided with a plurality of equally spaced arc-shaped mounting grooves; the shape of each arc-shaped mounting groove is adapted to the shape of the workpiece to be processed; and the curvature of the fixed body is consistent with the curvature of the workpiece to be processed.

[0007] Optionally, each of the arc-shaped mounting grooves is provided with a mounting hole for positioning and securing the workpiece to be processed within the mounting groove using a mounting component.

[0008] Alternatively, the mounting hole may be a threaded hole, and the mounting element may be a screw.

[0009] Optionally, the number of the arc-shaped mounting grooves is eight, which are distributed equally along the outer circumference of the fixing body.

[0010] Further optionally, the dimensional parameters of the fixed body include the outer diameter, inner diameter, and thickness; the outer diameter is designed according to the outer diameter of the corresponding aircraft cabin.

[0011] Alternatively, the fixing body is an arc-shaped structure, and the inner circumference is a regular circular structure, used for clamping with a three-jaw chuck.

[0012] Alternatively, the fixing body may have a lifting hole.

[0013] Alternatively, the bottom surface of the fixing body may be provided with an anti-slip pad or an anti-slip ring.

[0014] Optionally, the arc-shaped mounting groove is provided with a chip removal hole that penetrates the thickness of the fixing body.

[0015] Alternatively, the outer circumference of the fixing body is provided with scale markings.

[0016] The above technical solution has the following beneficial effects: The fixing body adopts an integral circular ring structure, and multiple equally spaced arc-shaped mounting grooves are set on its outer circumference, so that multiple arc-shaped hole covers to be processed can be clamped at one time, thus significantly improving processing efficiency and making it suitable for mass production; the groove shape of each arc-shaped mounting groove is precisely matched with the curvature of the arc-shaped hole cover to be processed, so that the workpiece can be stably attached and clearly positioned in the mounting groove, thus improving the positioning accuracy and finished product size consistency during processing; each mounting groove is provided with mounting holes, and the workpiece can be fastened in the groove with screws, thus avoiding loosening or displacement of the workpiece during processing, thus ensuring the stability and safety of the processing process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an arc-shaped orifice cover in the prior art; Figure 2 This is a schematic diagram of the arc-shaped hole cover processing device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the arc-shaped hole cover assembly structure provided in an embodiment of the present invention.

[0019] Reference numerals: 1-Fixed body; 2-Mounting groove; 3-Mounting hole; 4-Workpiece to be processed; 5-Mounting component; 6-Three-jaw chuck. Detailed Implementation

[0020] The technical solutions of the embodiments 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, and 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.

[0021] To address the problems of low workpiece processing efficiency and difficulty in ensuring dimensional consistency in existing technologies, this invention provides an arc-shaped hole cover processing device. Please refer to... Figures 1-3 , Figure 1 This is a schematic diagram of the structure of an arc-shaped orifice cover in the prior art; Figure 2 This is a schematic diagram of the arc-shaped hole cover processing device provided in an embodiment of the present invention; Figure 3 This is a schematic diagram of the arc-shaped hole cover assembly structure provided in an embodiment of the present invention.

[0022] The device includes: a fixed body 1, the outer peripheral surface of which is provided with a plurality of equally spaced arc-shaped mounting grooves 2; the shape of each arc-shaped mounting groove 2 is adapted to the shape of the workpiece 4 to be processed; the curvature of the fixed body 1 is consistent with the curvature of the workpiece 4 to be processed.

[0023] The fixed body 1 has an overall ring-shaped structure with a certain thickness, and is preferably made of stainless steel to ensure sufficient structural strength and corrosion resistance.

[0024] Multiple arc-shaped mounting slots 2 are arranged at equal intervals along the outer periphery of the fixed body 1, and the multiple arc-shaped mounting slots 2 are distributed around the 360-degree circumference. Each arc-shaped mounting slot 2 can install a workpiece 4 to be processed, which is the arc-shaped hole cover.

[0025] The groove shape of each arc-shaped mounting groove 2 is designed according to the workpiece 4 to be processed. Its radius of curvature and width are adapted to the shape of the workpiece 4 to be processed, so that the hole cover can be stably embedded in the groove.

[0026] The overall curvature of the fixed body 1 is consistent with the curvature of the workpiece 4 to be processed, thereby ensuring that the posture of multiple workpieces 4 to be processed remains uniform during the processing. The curvature of the outer peripheral surface of the fixed body 1 should be set according to the shape processing requirements of the workpiece 4 to be processed, so as to ensure that the outer peripheral surface is used as a reference surface for processing the workpiece 4.

[0027] As an optional implementation, each arc-shaped mounting groove 2 is provided with a mounting hole 3, which is used to position and fasten the workpiece 4 to be processed in the mounting groove 2 by means of the mounting component 5.

[0028] In actual use, the arc-shaped hole cover to be processed is placed in the corresponding arc-shaped mounting groove 2, and its initial positioning is achieved through the curved surface fitting with the groove. The operator can insert mounting parts 5 such as screws, pressure plates, and U-clamps into the mounting hole 3, and secure the arc-shaped hole cover in the groove by tightening or clamping to achieve reliable positioning.

[0029] As an optional implementation, mounting hole 3 is a threaded hole, and mounting component 5 is a screw.

[0030] The threaded holes are arranged radially along the fixing body 1, preferably in the middle of the arc-shaped mounting groove 2, and the spacing matches the size of the arc-shaped hole cover to be processed. The screw can pass directly through the pre-set through hole or positioning hole of the arc-shaped hole cover and be screwed into the threaded hole below to achieve reliable fixation between the workpiece and the arc-shaped mounting groove 2.

[0031] As an optional implementation, the number of arc-shaped mounting grooves 2 is eight, which are distributed equally along the outer circumference of the fixed body.

[0032] There are eight arc-shaped mounting slots 2, which are evenly distributed along the outer circumference of the fixed body, with a central angle of 45° between each adjacent two mounting slots 2, achieving a regular distribution. The mounting slots 2 are evenly arranged on the circumference of the fixed body, and the distance between the slots is consistent, ensuring that the workpieces in each slot are subjected to balanced and symmetrical force distribution during rotational processing, avoiding phenomena such as uneven loading, vibration, or runout caused by uneven clamping.

[0033] As an optional implementation, the dimensions of the fixed body include the outer diameter, inner diameter, and thickness; the outer diameter is designed according to the outer diameter of the corresponding aircraft cabin.

[0034] The outer diameter refers to the maximum dimension of the fixed body in the radial direction, corresponding to the size of its outer circumferential ring; the inner diameter refers to the diameter of the central cavity of the fixed body, used to cooperate with the clamping device; the thickness refers to the dimension of the fixed body in the axial direction (i.e., the height direction of the processing device), used to support the structural depth of the workpiece 4 to be processed.

[0035] As an optional implementation, the fixing body 1 has an arc-shaped structure with a regular inner circumference, which is used for clamping by the three-jaw chuck 6.

[0036] The inner circumference of the fixed body 1 is a regular circular structure, meaning that the inner circular surface has a constant radius over the entire circumference, forming a complete concentric circular inner hole. The size of this inner hole can be designed according to the clamping range of the standard lathe three-jaw chuck 6, so that it fully fits the contact surface of the jaws of the lathe spindle chuck, thereby achieving stable clamping.

[0037] As an optional implementation, the fixing body 1 has a lifting hole.

[0038] In practical applications, because the processing device is made entirely of metal and is large in size (such as an outer diameter of several hundred millimeters), it has a large mass. In order to facilitate the handling, installation or removal of the processing device from the equipment on the production site, a lifting hole structure is specially designed.

[0039] As an optional implementation, the bottom surface of the fixing body 1 is provided with anti-slip pads or anti-slip rings.

[0040] The bottom surface of the fixing body 1 is provided with anti-slip pads or anti-slip rings. This structure can be set in multiple support areas on the bottom surface of the fixing body 1. It is preferably made of materials with certain elasticity and high friction coefficient, such as rubber, silicone or polyurethane. It can also be a metal anti-slip ring structure with texture, grooves or sandblasting treatment on the surface.

[0041] As an optional implementation, the arc-shaped mounting groove 2 is provided with a chip removal hole that penetrates the thickness of the fixing body 1.

[0042] In actual machining processes, when machining tools perform turning or cutting operations on the arc-shaped hole cover, a large amount of metal chips are often generated. Especially when multiple stations are machining simultaneously, the chips can easily accumulate in the mounting groove 2 or jam the edge of the workpiece, thus affecting machining accuracy, cooling effect, and even damaging the tool. By setting chip removal holes in the arc-shaped mounting groove 2, chips can be easily discharged in a timely manner, preventing chip accumulation from interfering with machining.

[0043] As an optional implementation, the outer circumference of the fixed body 1 is provided with scale markings.

[0044] The outer circumference of the fixed body 1 is provided with scale markings. The scale markings are evenly arranged along the circumference and are preferably formed by laser etching, mechanical engraving or wear-resistant paint printing. The specific form may include numerical numbers, angle values, engravings or symbol markings.

[0045] In practice, the scale markings correspond to the positions of the arc-shaped mounting slots 2. For example, in a structure with 8 equally spaced arc-shaped mounting slots 2, angle markings or slot numbers (such as "0°", "45°", "90°", "number 1~8", etc.) can be marked on the corresponding positions of the circumference of each slot to assist in identification and operation.

[0046] The operating steps for the arc-shaped hole cover processing device are as follows: 1) Place the workpieces to be processed into the mounting slots of the arc-shaped hole cover processing device and use the mounting parts to secure them in place.

[0047] 2) Use the three-jaw chuck of the CNC lathe to support the inner circumference of the arc-shaped hole cover processing device. After alignment, machine the arc surface of the hole cover according to the arc surface size. This way, multiple sets of arc-shaped hole covers can be quickly formed at one time.

[0048] 3) Disassemble the mounting parts and remove the arc-shaped hole cover.

[0049] The above technical solution has the following beneficial effects: The fixing body adopts an integral circular ring structure, and multiple equally spaced arc-shaped mounting grooves are set on its outer circumference, so that multiple arc-shaped hole covers to be processed can be clamped at one time, thus significantly improving processing efficiency and making it suitable for mass production; the groove shape of each arc-shaped mounting groove is precisely matched with the curvature of the arc-shaped hole cover to be processed, so that the workpiece can be stably attached and clearly positioned in the mounting groove, thus improving the positioning accuracy and finished product size consistency during processing; each mounting groove is provided with mounting holes, and the workpiece can be fastened in the groove with screws, thus avoiding loosening or displacement of the workpiece during processing, thus ensuring the stability and safety of the processing process.

[0050] The above-described specific embodiments of the invention further illustrate the purpose, technical solution, and beneficial effects of the invention. It should be understood that the above content is only for specific embodiments of the invention and is not intended to limit the scope of protection of the invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. An arc hole cover processing apparatus characterized by comprising: The utility model relates to an arc hole cover processing device, including: A fixed body, the outer peripheral surface of the fixed body is equipped with a plurality of equidistantly arranged arc-shaped mounting grooves; The shape of each arc-shaped mounting groove is matched with the shape of the workpiece to be processed; The arc of the fixed body is consistent with the arc of the workpiece to be processed.

2. The arc hole cover processing device according to claim 1, wherein: Each arc-shaped mounting groove is provided with a mounting hole in the groove, which is used for positioning and fastening the workpiece to be processed in the mounting groove through a mounting member.

3. The arc hole cover processing device according to claim 2, wherein: The mounting hole is a threaded hole, and the mounting member is a screw.

4. The arc hole cover processing device according to claim 1, wherein: The number of arc-shaped mounting grooves is eight, which are distributed in equal parts along the outer circumference of the fixed body.

5. The arc hole cover processing device according to claim 1, wherein: The size parameters of the fixed body include the outer diameter, the inner diameter and the thickness; The outer diameter is designed according to the outer diameter of the corresponding aircraft cabin.

6. The arc hole cover processing device according to claim 1, wherein: The fixed body is a circular arc structure, and the inner circumference is a regular circular structure for three-jaw chuck clamping.

7. The arc hole cover processing device according to claim 1, wherein: The fixed body is provided with a lifting hole.

8. The arc hole cover processing device according to claim 1, wherein: The bottom surface of the fixed body is provided with an anti-skid pad or an anti-skid ring.

9. The arc hole cover processing device according to claim 1, wherein: The arc-shaped mounting groove is provided with a chip removal hole, and the chip removal hole penetrates the thickness of the fixed body.

10. The arc hole cover processing device according to claim 1, wherein: The outer circumference of the fixed body is provided with a scale mark.