A machining device based on U-shaped workpieces

By designing a hollowed-out lower fixture and pad, the blind spot problem in U-shaped workpiece machining is solved, achieving high-precision and high-quality machining results, and improving safety and efficiency.

CN224938881UActive Publication Date: 2026-11-06BOHAI SHIPYARD GROUP CORP LTD
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Patent Information

Application Number
CN202522438176.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-11-18
Publication Date
2026-11-06
Estimated Expiration
2035-11-18

AI Technical Summary

Technical Problem

Traditional U-shaped workpiece machining methods have blind spots, resulting in poor machining accuracy and quality, as well as safety hazards and low efficiency.

Method used

The lower fixture and matching pad with a hollow structure ensure that the U-shaped workpiece is fully exposed. The support plate matches the U-shaped workpiece, and the rib plate matches the radius of the arc, so as to achieve full display and smooth transition.

Benefits of technology

It improves the machining accuracy and quality of U-shaped workpieces, avoids blind spots that obstruct the field of vision, reduces safety risks, and improves production efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model proposes a processing device based on a U-shaped workpiece. It includes a lower fixture and a pad; the pad is matched with the U-shaped workpiece and is placed between the U-shaped workpiece and the upper table of the hydraulic press before processing; the lower fixture is set on the lower table of the hydraulic press to support the U-shaped workpiece, and the lower fixture has a hollow structure, allowing for a full view of the U-shaped workpiece. The lower fixture includes a panel, a support plate, and a base plate; the support plate has a recessed portion on its side, and the support plates are arranged together on the base plate to form a hollow structure that is narrow at the top and wide at the bottom. The recessed portion exposes the U-shaped workpiece, providing space for adjustment during processing while ensuring the operator's field of vision is not obstructed; the panel is located on top of the support plate and parallel to the base plate, supporting the U-shaped workpiece for all-around processing; the pad includes a pressure plate and ribs; the ribs are arrayed on the lower surface of the pressure plate, and the distance between two ribs matches the radius of the arc of the U-shaped workpiece. It is suitable for use as a processing device for U-shaped workpieces.
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Description

Technical Field

[0001] This utility model relates to U-shaped workpieces in the field of shipbuilding, and in particular to a processing device based on U-shaped workpieces. Background Technology

[0002] Currently, U-shaped workpiece machining is indispensable in the shipbuilding industry. Due to its unique structure and wide range of applications, U-shaped workpieces have high requirements for machining accuracy and quality. The surface of the formed workpiece must be smooth, and the tolerance must be controlled within ±1mm.

[0003] Traditional machining methods for U-shaped workpieces typically involve using a fixed jig and shims for shaping. The following are some shortcomings of this traditional method: 1. Machining blind spot problem: The structure of traditional fixtures limits the operating angle, and the machining blind spot often causes problems such as indentation and hard spots on the workpiece surface, making it difficult to process some areas, affecting machining accuracy, quality and efficiency; 2. Safety hazards: Operators are prone to accidents such as hand pinching due to blind spots during processing; 3. Inefficiency: Changing the jig and adjusting the pads takes a long time, making it difficult to meet the needs of high-efficiency production. Summary of the Invention

[0004] To address the shortcomings of existing technologies, and considering the problems of blind spots affecting processing accuracy and efficiency, as well as safety hazards, in U-shaped workpiece repair fixtures, this application provides a processing device based on U-shaped workpieces. This device utilizes a hollowed-out structure in the lower fixture to display the U-shaped workpiece, and a matching pad with the U-shaped workpiece, thus resolving the technical problems associated with U-shaped workpiece repair fixtures.

[0005] The solution adopted by the embodiments of this application to solve the technical problem is: A processing device based on a U-shaped workpiece includes a lower fixture and a pad. The pad is matched with the U-shaped workpiece and is used to place between the U-shaped workpiece and the upper table of the hydraulic press before processing, so that the surface of the U-shaped workpiece can be smoothly transitioned; the lower fixture is set on the lower table of the hydraulic press to support the U-shaped workpiece. The lower fixture has a hollow structure, which can display the U-shaped workpiece in a panoramic view.

[0006] In order to further solve the technical problems to be solved by the embodiments of this application, the lower jig provided in the embodiments of this application includes a panel, a support plate and a base plate; The base plate serves as the supporting foundation for the lower fixture; the support plate is a plate-shaped structure with recessed sections on its sides. The support plates are arranged on the base plate and clustered together to form a hollow structure that is narrow at the top and wide at the bottom. The recessed sections expose the U-shaped workpiece, allowing for adjustment of the U-shaped workpiece during processing, while ensuring that the operator's field of vision is not obstructed; the panel is a rectangular plate, located on top of the support plate and parallel to the base plate, used to support the U-shaped workpiece for all-around processing. The support plate is connected to the bottom plate and the front plate at both ends, forming a stable hollow structure that is narrow at the top and wide at the bottom.

[0007] Furthermore, there are four support plates arranged in an array around the center of the panel, providing a full-view display of the U-shaped workpiece.

[0008] Furthermore, the pad includes a pressure plate and ribs; the pressure plate is a rectangular plate, and the ribs are strip-shaped plates, arrayed on the lower surface of the pressure plate, with the distance between the two ribs matching the arc radius of the U-shaped workpiece.

[0009] Positive effects: The technical solutions provided in this application embodiment have at least the following technical effects or advantages: 1. Because the embodiments of this application adopt a hollow structure with a narrow upper part and a wide lower part for the lower fixture, the U-shaped workpiece is fully exposed, avoiding blind spots in the processing of the U-shaped workpiece. This effectively solves the technical problem of U-shaped workpiece repair fixtures in the prior art, ensuring that the operator's field of vision is not affected, thereby achieving the technical effect of improving the processing accuracy and quality of the U-shaped workpiece.

[0010] 2. Because the embodiment of this application adopts the technical means of providing a concave part in the support plate, the concave part can expose the U-shaped workpiece, effectively solving the technical problem of U-shaped workpiece repair jig in the prior art, displaying the U-shaped workpiece in all directions, and thus achieving the technical effect of not obstructing the operator's view.

[0011] 3. Because the embodiments of this application adopt the technical means of rib array on the lower surface of the pressure plate, the distance between the two ribs matches the arc radius of the U-shaped workpiece, which effectively solves the technical problem of U-shaped workpiece repair jig in the prior art. During the rounding operation, the surface of the U-shaped workpiece transitions smoothly, meeting the arc radius requirements of the U-shaped workpiece, thereby achieving the technical effect of improving the processing quality of the U-shaped workpiece.

[0012] In summary, it is suitable for use as a processing device based on U-shaped workpieces. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is the front view of this embodiment; Figure 2 This is a side view of this embodiment; Figure 3 This is a top view of this embodiment; Figure 4 This is the front view of the pad. Figure 5 This is a bottom view of the pad.

[0015] In the figure, 1. Panel, 2. Support plate, 21. Recess, 3. Base plate, 4. Pad, 41. Pressure plate, 42. Rib, 5. U-shaped workpiece. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0017] This application provides a processing device based on U-shaped workpieces, which solves the problems of blind spots affecting processing accuracy and efficiency, and safety hazards that easily occur when using repair jigs to repair U-shaped workpieces in the prior art. By using a hollowed-out lower jig and pad in the repair of U-shaped workpieces, the processing accuracy is improved, personal safety is protected, work efficiency is increased, and workpiece quality is guaranteed.

[0018] As shown in the figure, a processing device based on a U-shaped workpiece includes a lower jig and a pad 4; The pad 4 is matched with the U-shaped workpiece 5 and is used to place between the U-shaped workpiece 5 and the upper table of the hydraulic press before processing, so that the surface of the U-shaped workpiece 5 can be smoothly transitioned, meet the processing arc requirements of the U-shaped workpiece 5, and protect the U-shaped workpiece 5. The lower fixture is set on the lower table of the hydraulic press to support the U-shaped workpiece 5. The lower fixture has a hollow structure, which can display the U-shaped workpiece 5 in a full view. When the U-shaped workpiece 5 is being processed, the angle can be moved at any time, so as not to obstruct the operator's view, thereby improving processing accuracy, protecting personal safety, improving work efficiency, and ensuring workpiece quality.

[0019] To ensure the stability of the structure in this embodiment, the lower fixture includes a panel 1, a support plate 2, and a base plate 3; The base plate 3 is a rectangular plate, which serves as the supporting foundation for the lower fixture. In this embodiment, the base plate 3 is made of high-strength steel plate, and its size is determined according to the maximum size of the U-shaped workpiece 5, which is 600X400mm. The support plate 2 is a plate-shaped structure with a recessed part 21 on its side. The support plates 2 are arranged on the base plate 3 and gathered together to form a hollow structure that is narrow at the top and wide at the bottom. The recessed part 21 exposes the U-shaped workpiece 5. When processing the U-shaped workpiece 5, there is a gap to adjust the U-shaped workpiece 5, while ensuring that the operator's field of vision is not affected. Panel 1 is a rectangular plate, which is set on top of support plate 2 and parallel to base plate 3, and is used to support U-shaped workpiece 5 for all-round processing; in this embodiment, the size of panel 1 is 200X95mm. The support plate 2 is connected to the base plate 3 and the panel 1 at both ends, forming a stable hollow structure that is narrow at the top and wide at the bottom. When the operator finds a processing defect in a certain part of the U-shaped workpiece 5 during the processing of the U-shaped workpiece 5, he can adjust the angle and direction of the U-shaped workpiece 5 in time, which makes up for the shortcomings of the traditional processing method.

[0020] In this embodiment, the support plate 2, the base plate 3, and the panel 1 are welded together using a full welding method.

[0021] To further ensure the stability of the structure in this embodiment, the support plate 2 consists of four pieces arranged in an array around the center of the panel 1, displaying the U-shaped workpiece 5 from all angles, so that the operator's view is not obstructed, thus facilitating and speeding up the processing operation.

[0022] To optimize the structure of this embodiment, the pad 4 includes a pressure plate 41 and a rib 42; the pressure plate 41 is a rectangular plate, and the rib 42 is a strip plate, arranged in an array on the lower surface of the pressure plate 41. The distance between the two ribs 42 matches the arc radius of the U-shaped workpiece 5 to ensure the fit with the U-shaped workpiece 5.

[0023] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages: Because the lower fixture has a hollow structure that is narrow at the top and wide at the bottom, the U-shaped workpiece 5 is fully exposed, avoiding blind spots in the processing of the U-shaped workpiece 5, ensuring that the operator's field of vision is not affected, and improving the processing accuracy and quality of the U-shaped workpiece 5.

[0024] Because the support plate 2 has a recessed portion 21, the recessed portion 21 can expose the U-shaped workpiece 5, displaying the U-shaped workpiece 5 from all directions, and the operator's field of vision is not obstructed.

[0025] Since the ribs 42 are arrayed on the lower surface of the pressure plate 41, the distance between the two ribs 42 matches the radius of the arc of the U-shaped workpiece 5. Therefore, during the rounding operation, the surface of the U-shaped workpiece 5 transitions smoothly, meeting the arc requirements of the U-shaped workpiece 5 and improving the processing quality of the U-shaped workpiece 5.

[0026] The working process of this embodiment: Includes the following steps: Step 1: Place the U-shaped workpiece 5 on top of the panel 1 of this device.

[0027] Step 2: Use the panel 1 of this device to cooperate with the upper table of the hydraulic press to perform the rounding operation. The side support plate 2 adopts the principle of being narrow at the top and wide at the bottom to form a hollow exposed space, which facilitates the spatial movement of the straight edge of the U-shaped workpiece 5 during processing.

[0028] Step 3: When the curvature of the U-shaped workpiece 5 is insufficient, use a pad 4 to press on the upper surface of the U-shaped workpiece 5 to ensure that the workpiece meets the design requirements.

[0029] Step 4: After processing, compare with the template to ensure that the surface of the U-shaped workpiece 5 is smooth and free of indentations, and the tolerance is controlled within ±1mm.

[0030] Step 5: Store this device properly in a safe area.

[0031] Features of this embodiment: First, this embodiment has a wide processing range: the hollow design expands the processing range to 360°, effectively avoiding blind spots and improving processing accuracy and quality.

[0032] Second, this embodiment has strong applicability: the lower fixture is suitable for all U-shaped parts with different thicknesses and curvatures, and has wide applicability.

[0033] Third, this embodiment is easy to operate: changing the lower tire is quick and easy, the operation is simple, and production efficiency is improved.

[0034] Fourth, this embodiment has high safety: it avoids the risk of hand pinching caused by the blind spot in the processing of U-shaped workpiece 5, and significantly improves operational safety.

[0035] The description of this utility model is given for illustrative and descriptive purposes only, and is not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical application of the utility model, and to enable those skilled in the art to understand the utility model and design various embodiments with various modifications suitable for a particular purpose.

[0036] Finally, it should be noted that: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A processing device based on a U-shaped workpiece, characterized in that: Including the lower tire and pad (4); The pad (4) is matched with the U-shaped workpiece (5) and is used to place between the U-shaped workpiece (5) and the upper table of the hydraulic press before processing, so that the surface of the U-shaped workpiece (5) can be smoothly transitioned. The lower fixture is set on the lower table of the hydraulic press to support the U-shaped workpiece (5). The lower fixture has a hollow structure, which can display the U-shaped workpiece (5) in a panoramic view.

2. The processing device based on a U-shaped workpiece according to claim 1, characterized in that: The lower fixture includes a panel (1), a support plate (2), and a base plate (3); The base plate (3) serves as the supporting foundation for the lower fixture; The support plate (2) is a plate-shaped structure with a recessed part (21) on its side. The support plates (2) are arranged on the bottom plate (3) and surrounded together to form a hollow structure that is narrow at the top and wide at the bottom. The recessed part (21) exposes the U-shaped workpiece (5). When processing the U-shaped workpiece (5), there is a gap to adjust the U-shaped workpiece (5) while ensuring that the operator's field of vision is not affected. The panel (1) is a rectangular plate, which is set on top of the support plate (2) and parallel to the base plate (3) to support the U-shaped workpiece (5) for all-round processing; Among them, the two ends of the support plate (2) are connected to the bottom plate (3) and the front plate (1) respectively, forming a stable hollow structure that is narrow at the top and wide at the bottom.

3. The processing device based on a U-shaped workpiece according to claim 2, characterized in that: The support plate (2) consists of four pieces, arranged in an array around the center of the panel (1) to display the U-shaped workpiece (5) from all directions.

4. The processing device based on a U-shaped workpiece according to claim 2, characterized in that: The support plate (2), the base plate (3) and the panel (1) are welded together by full welding.

5. The processing device based on a U-shaped workpiece according to claim 1, characterized in that: The pad (4) includes a pressure plate (41) and ribs (42); the pressure plate (41) is a rectangular plate and the ribs (42) are strip plates arranged on the lower surface of the pressure plate (41). The distance between the two ribs (42) matches the arc radius of the U-shaped workpiece (5).