An overhanging ear auxiliary support device

Abstract

The utility model relates to the field of machining, concretely relates to a kind of overhanging lug auxiliary supporting device, including backing plate, pressing plate and connecting piece;Backing plate: including the support part of adaptation with overhanging lug profile, still including the extension capable of abutting with workpiece main body, the support part and the extension connection form whole, the support part one side is equipped with the as-formed support surface of adaptation with overhanging lug outer side surface shape;Pressing plate: for setting to the inner side surface of overhanging lug;Connecting piece: the pressing plate and the backing plate are detachably connected by the connecting piece.The utility model is directly abutted with the extension of workpiece main body by setting, can realize that the cutting force suffered by overhanging lug is directly transmitted to workpiece main body through rigid structure, forms stable force flow path, fundamentally solves the problem of insufficient local rigidity of overhanging lug.

Description

Technical Field

[0001] This utility model relates to the field of machining, and in particular to an auxiliary support device for cantilever lugs. Background Technology

[0002] In the fields of high-end equipment manufacturing such as aerospace, shipbuilding, and heavy machinery, it is often necessary to process a workpiece with relatively set lugs (or lifting lugs, convex lugs). These lugs are usually used for subsequent connection, suspension or load-bearing.

[0003] In actual processing, because the outer and inner surfaces of the lugs are not flat, or there are lower limit areas such as depressions or slopes formed due to design requirements, the contact between the bottom of the lug and the worktable is not a complete and stable surface contact. When the lower lug is placed on the worktable, a suspended area will be formed between its bottom and the worktable. Furthermore, there is a problem of insufficient rigidity when processing the upper and lower lugs. When the lugs are subjected to cutting forces from the tool, vibrations, and other loads, they are prone to elastic deformation or even slight vibrations, which affects the processing quality and efficiency.

[0004] Therefore, the lack of a dedicated clamping solution that can effectively enhance the local rigidity of the lugs, suppress machining deformation, and ensure machining accuracy has become a bottleneck problem restricting the high-quality and high-efficiency machining of such workpieces. Utility Model Content

[0005] The purpose of this utility model is to overcome the technical problem in the prior art that the workpiece cantilever lugs deform and vibrate due to insufficient local rigidity during processing, which affects the processing quality and efficiency, and to provide an auxiliary support device for cantilever lugs.

[0006] This utility model provides an auxiliary support device for a cantilever lug, including a pad, a pressure plate, and a connector; Pad: includes a support portion adapted to the contour of the cantilever lug, and an extension portion capable of abutting against the workpiece body. The support portion and the extension portion are connected to form an integral whole. One side of the support portion is provided with a conformal support surface adapted to the shape of the outer side of the cantilever lug. Pressure plate: used to be set onto the inner side of the cantilever lug; Connector: The pressure plate and the pad are detachably connected via the connector.

[0007] This utility model discloses an auxiliary support device for a cantilever lug. In use, the conformal support surface of the pad is attached to the outer side of the cantilever lug, and the extension portion is stably abutted against the workpiece body. The pressure plate is placed on the inner side of the cantilever lug. Then, the pressure plate and the pad are fastened together by the connector, so that the cantilever lug is stably clamped between the pad and the pressure plate. Thus, the processing load on the cantilever lug is effectively transferred to the workpiece body through the extension portion, thereby enhancing the local rigidity of the cantilever lug.

[0008] Preferably, the connector is a fastening bolt, the pad is provided with a threaded hole adapted to the fastening bolt, and the pressure plate is provided with a connecting hole corresponding to the threaded hole.

[0009] The connection between the pressure plate and the pad is realized. By tightening the fastening bolts, the pressure plate can be pressed against the inner side of the cantilever lug.

[0010] Preferably, the connecting hole is an oblong hole or a smooth hole with a diameter larger than that of the fastening bolt.

[0011] The oblong or large-sized aperture provides a certain positional adjustment margin for the pressure plate, making it easier to align during initial installation, reducing clamping difficulty, and improving the fault tolerance and ease of use of the device.

[0012] Preferably, the pad is provided with two threaded holes, and the pressure plate is provided with two corresponding connecting holes, each of which is equipped with a fastening bolt.

[0013] The dual-point connection can balance the clamping force applied to the cantilever lugs, preventing the pressure plate from tilting or the workpiece from being deformed locally due to single-point force, making the clamping more uniform and stable.

[0014] Preferably, the conformal support surface is provided with a limiting boss, and the limiting boss is adapted to the shape of the through groove on the cantilever ear.

[0015] The limiting boss can be embedded in the through groove or specific structure of the cantilever lug to play a radial and circumferential positioning role, preventing the workpiece from moving relative to the pad during the processing, thus improving positioning accuracy and processing reliability.

[0016] Preferably, the two ends of the pressure plate are rounded.

[0017] The rounded ends avoid sharp edges, which not only prevents stress concentration but also facilitates installation and operation, improves safety, and reduces interference between the pressure plate and the machining tool.

[0018] Preferably, the pad is provided with a plurality of light-reducing grooves on the side away from the conformal support surface.

[0019] The weight reduction groove can effectively reduce the overall weight of the pad without significantly affecting the structural strength, making it easier to handle and operate, while reducing the stress on the overhanging lugs.

[0020] Preferably, the light-reducing groove is disposed away from the threaded hole.

[0021] This layout design ensures sufficient solid material wall thickness around the threaded hole, avoiding local weak points caused by the lightening groove. This significantly improves the connection strength of the threaded hole and prevents tearing or plastic deformation in the area around the threaded hole when tightening torque is applied or cutting force is applied, thereby ensuring connection reliability and the overall service life of the device.

[0022] Preferably, both the pad and the pressure plate are structural components made of No. 45 steel.

[0023] 45 steel, a commonly used high-quality carbon structural steel, is selected because it has good strength and toughness, excellent machinability, is easy to manufacture and repair, and is inexpensive. This material can be further improved through quenching and tempering, making it very suitable as a base material for tooling and fixtures. It achieves a balance between performance and economy and practicality.

[0024] Preferably, the thickness of both the pad and the pressure plate is 20mm ± 2mm.

[0025] The 20mm±2mm thickness specification provides the device with reference rigidity and load-bearing capacity, while also controlling the weight of the pad and pressure plate to meet the working conditions of ear plate processing. The introduction of a ±2mm tolerance range provides flexibility for fine-tuning according to different workpiece sizes and cutting loads, while also meeting the economic precision of conventional machining. This facilitates the control of production costs and efficiency, and promotes the standardization and serialization of the device.

[0026] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides an auxiliary support device for a cantilever lug. By setting a conformal support surface that is perfectly adapted to the shape of the outer side of the cantilever lug, it can achieve full fit support for the entire outer contour of the cantilever lug, effectively disperse processing stress, and significantly enhance the deformation resistance of the cantilever lug. 2. This utility model provides an auxiliary support device for cantilever lugs. By setting an extension that directly abuts against the workpiece body, the cutting force on the cantilever lugs can be directly transmitted to the workpiece body through a rigid structure, forming a stable force flow path, and fundamentally solving the problem of insufficient local rigidity of the cantilever lugs. 3. This utility model provides an auxiliary support device for cantilever lugs. Through the detachable connection structure of the pressure plate and the pad, rigid constraints can be provided simultaneously from both the inner and outer sides of the cantilever lugs to form a stable clamping system, effectively suppressing vibration and deformation during processing. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of an auxiliary support device for a cantilevered ear piece according to the present invention; Figure 2 This is a schematic diagram of the inner side structure of the pad described in this utility model; Figure 3 This is a schematic diagram of the outer side structure of the pad described in this utility model; Figure 4 This is a schematic diagram of the structure of the pressure plate described in this utility model; Figure 5 This is a diagram showing the usage state of a cantilevered ear auxiliary support device according to this utility model; Marked in the image: 1-Plate, 11-Support part, 111-Conformal support surface, 112-Threaded hole, 113-Limiting boss, 12-Extension part, 101-Relief groove, 2-Pressure plate, 21-Connecting hole, 3-Connector, 31-Fastening bolt, 4-Workpiece body, 41-Cantilever lug. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0029] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0030] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0031] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0032] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0033] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0034] Example 1 like Figure 1 , Figure 2 and Figure 5 As shown, an auxiliary support device for a cantilever lug 41 includes a pad 1, a pressure plate 2, and a connector 3; Pad 1: includes a support portion 11 adapted to the contour of the cantilever lug 41, and an extension portion 12 capable of abutting against the workpiece body 4. The support portion 11 and the extension portion 12 are connected to form an integral whole. One side of the support portion 11 is provided with a conformal support surface 111 adapted to the shape of the outer side surface of the cantilever lug 41. Pressure plate 2: used to be set on the inner side of the cantilever lug 41; Connector 3: The pressure plate 2 and the pad 1 are detachably connected by the connector 3.

[0035] In optional implementations, such as Figure 4 As shown, the two ends of the pressure plate 2 can be set to be arc-shaped to avoid sharp edges, which not only prevents stress concentration, but also facilitates installation and operation, improves the safety of use, and can also reduce the interference of the pressure plate 2 on the machining tool.

[0036] In an optional embodiment, both the pad 1 and the pressure plate 2 can be structural components made of 45# steel, tempered to HRC28-32. 45# steel, a commonly used high-quality carbon structural steel, possesses good strength and toughness, excellent machinability, is easy to manufacture and repair, and is inexpensive. This material can achieve even higher comprehensive mechanical properties through tempering, making it very suitable as a base material for tooling fixtures. This achieves a balance between performance and economy and practicality.

[0037] In an optional embodiment, the thickness of both the pad 1 and the pressure plate 2 is 20mm ± 2mm, which ensures the reference rigidity and load-bearing capacity, while also controlling the weight of the pad 1 and the pressure plate 2 to meet the working conditions of the ear piece processing. The introduction of a tolerance range of ± 2mm provides flexibility for fine-tuning according to different workpiece sizes and cutting loads, and also meets the economic precision of conventional machining, making it easier to control production costs and efficiency, and facilitating the standardization and serialization of the device.

[0038] In one or more implementations, such as Figure 1 , Figure 2 and Figure 4 As shown, the connector 3 can be a fastening bolt 31. The pad 1 is provided with a threaded hole 112 that is compatible with the fastening bolt 31. The pressure plate 2 is provided with a connecting hole 21 corresponding to the threaded hole 112, which realizes the connection between the pressure plate 2 and the pad 1. By tightening the fastening bolt 31, the pressure plate 2 can be pressed against the inner side of the cantilever ear 41.

[0039] In optional implementations, such as Figure 4 As shown, the connecting hole 21 can be an oblong hole or a light hole with a diameter larger than that of the fastening bolt 31. The oblong hole or the large light hole provides a certain position adjustment margin for the pressure plate 2, which makes it easy to align the position during initial installation, reduces the clamping difficulty, and improves the fault tolerance and ease of use of the device.

[0040] In optional implementations, such as Figure 3 and Figure 4As shown, two threaded holes 112 can be provided on the pad 1, and two connecting holes 21 are provided on the pressure plate 2. Each connecting hole 21 is equipped with a fastening bolt 31. The dual-point connection can balance the clamping force applied to the cantilever lug 41, prevent the pressure plate 2 from tilting or the workpiece from being deformed locally due to single-point force, and make the clamping more uniform and stable.

[0041] In optional implementations, such as Figure 2 As shown, a limiting boss 113 can be provided on the conformal support surface 111. The limiting boss 113 is adapted to the shape of the through groove on the cantilever lug 41. The limiting boss 113 is embedded in the through groove or specific structure of the cantilever lug 41 to play a radial and circumferential positioning role, preventing the workpiece from moving relative to the pad 1 during the processing, thereby improving the positioning accuracy and processing reliability.

[0042] In optional implementations, such as Figure 3 As shown, several weight-reducing grooves 101 can be provided on the side of the pad 1 away from the conformal support surface 111. Without significantly affecting the structural strength, the overall weight of the pad 1 can be effectively reduced, making it easier to handle and operate, while reducing the stress on the overhanging lugs 41.

[0043] In optional implementations, such as Figure 3 As shown, the relief groove 101 is positioned away from the threaded hole 112. This layout design ensures that there is sufficient solid material wall thickness around the threaded hole 112, avoiding local weak points caused by the relief groove 101. This significantly improves the connection strength of the threaded hole 112 and prevents tearing or plastic deformation in the area around the threaded hole 112 when tightening torque is applied or cutting force is applied, thereby ensuring connection reliability and the overall service life of the device.

[0044] How to use: Scenario 1: Used to support the lower ear piece Place the workpiece on the worktable so that the lower overhanging lug 41 is naturally positioned.

[0045] The conformal support surface 111 of the pad 1 is attached to the outer side of the lower cantilever lug 41 to ensure that the limiting boss 113 is embedded in the corresponding groove of the lug, while the extension 12 is in stable contact with the workpiece body 4.

[0046] Place the pressure plate 2 on the inner side of the cantilever lug 41.

[0047] Pass the fastening bolt 31 through the connecting hole 21 of the pressure plate 2, screw it into the threaded hole 112 of the pad 1 and tighten it appropriately so that the cantilever lug 41 is stably clamped between the pressure plate 2 and the pad 1.

[0048] At this time, the cutting force generated when machining the upper overhanging lug 41 can be transmitted to the clamped lower lug through the workpiece body 4, the extension 12 of the pad 1, and the support 11, forming a stable support system that effectively suppresses vibration and deformation. When machining the lower overhanging lug 41 itself, the device can also provide rigid support.

[0049] Scenario 2: Used to support the upper ear piece Place the workpiece on the worktable (usually the lower lug or other reference surface is in contact with the worktable).

[0050] The conformal support surface 111 of the pad 1 is attached to the outer side of the upper overhanging lug 41 and positioned.

[0051] Place the pressure plate 2 on the inner side of the upper suspended ear piece 41.

[0052] Similarly, fastening bolts 31 are used to fasten the pressure plate 2, the upper cantilever lug 41 and the pad 1 together.

[0053] At this time, when machining the upper cantilever lug 41, the cutting force is directly transmitted to the workpiece body 4 with better rigidity through the extension 12 of the pad 1, which greatly enhances the local rigidity of the cantilever lug 41 and effectively suppresses machining deformation and vibration.

[0054] This utility model provides rigid constraints from both the inner and outer sides of the ear piece through the cooperation of the pad 1 and the pressure plate 2, and together with the extension 12 that directly abuts against the workpiece body 4, it constructs a stable force flow path, which significantly improves the rigidity of the cantilever ear piece 41 during the processing and ensures the processing accuracy and quality.

[0055] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements 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. An auxiliary support device for a cantilever lug (41), characterized in that, Includes a pad (1), a pressure plate (2), and a connector (3); Pad (1): includes a support part (11) adapted to the contour of the overhanging lug (41), and an extension part (12) capable of abutting against the workpiece body (4). The support part (11) and the extension part (12) are connected to form an integral whole. One side of the support part (11) is provided with a conformal support surface (111) adapted to the shape of the outer side of the overhanging lug (41). Pressure plate (2): used to be set onto the inner side of the cantilever lug (41); Connector (3): The pressure plate (2) and the pad (1) are detachably connected by the connector (3).

2. The auxiliary support device for the cantilevered ear piece (41) according to claim 1, characterized in that, The connector (3) is a fastening bolt (31), the pad (1) is provided with a threaded hole (112) adapted to the fastening bolt (31), and the pressure plate (2) is provided with a connecting hole (21) corresponding to the threaded hole (112).

3. The auxiliary support device for the cantilevered ear piece (41) according to claim 2, characterized in that, The connecting hole (21) is an oblong hole or a smooth hole with a diameter larger than that of the fastening bolt (31).

4. The auxiliary support device for the cantilevered ear piece (41) according to claim 2, characterized in that, The pad (1) is provided with two threaded holes (112), and the pressure plate (2) is provided with two connecting holes (21) respectively. Each connecting hole (21) is equipped with a fastening bolt (31).

5. The auxiliary support device for a cantilevered ear piece (41) according to claim 4, characterized in that, The conformal support surface (111) is provided with a limiting boss (113), which is adapted to the shape of the through groove on the cantilever ear (41).

6. The auxiliary support device for the cantilevered ear piece (41) according to claim 1, characterized in that, The pressure plate (2) has rounded ends.

7. The auxiliary support device for the cantilevered ear piece (41) according to claim 2, characterized in that, The pad (1) has several light-reducing grooves (101) on the side away from the conformal support surface (111).

8. The auxiliary support device for the cantilevered ear piece (41) according to claim 7, characterized in that, The light-reducing groove (101) is positioned away from the threaded hole (112).

9. An auxiliary support device for a cantilevered lug (41) according to any one of claims 1-8, characterized in that, Both the pad (1) and the pressure plate (2) are structural components made of No. 45 steel.

10. The auxiliary support device for a cantilevered ear piece (41) according to claim 9, characterized in that, The thickness of both the pad (1) and the pressure plate (2) is 20mm ± 2mm.

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