A fixture for irregularly shaped workpieces

Abstract

This application relates to the field of parts clamping technology, and particularly to a clamping fixture for irregularly shaped workpieces. The fixture includes a first clamping block with a first clamping area comprising a first clearance groove, a first clamping plane, and a first arc-shaped fitting surface. The first clearance groove is located in the middle of the first clamping block, the first clamping plane is located on both sides of the first clearance groove, and the first arc-shaped fitting surface is located on one side of the first clamping plane. A second clamping block has a second clamping area comprising a second clearance groove, a second clamping plane, and a second arc-shaped fitting surface. The second clearance groove is located in the middle of the second clamping block, the second clamping plane is located on both sides of the second clearance groove, and the second arc-shaped fitting surface is located on one side of the second clamping plane. The curvature of the first arc-shaped clamping surface is less than the curvature of the corresponding curved surface of the irregularly shaped workpiece, and the curvature of the second arc-shaped clamping surface is also less than the curvature of the corresponding curved surface of the irregularly shaped workpiece. This fixture can stably clamp the irregularly shaped workpiece.

Description

Technical Field

[0001] This application relates to the field of parts clamping technology, and in particular to a clamping fixture for irregularly shaped workpieces. Background Technology

[0002] For space optimization, automotive components typically have complex outlines. This is because the design and functional requirements of a car dictate that components must adapt to different spatial layouts and mechanical structures. Components in the engine compartment need to be closely packed to make full use of space while ensuring reasonable clearances between parts to facilitate heat dissipation, maintenance, and repair. This necessitates components with complex shapes and outlines to fit into this compact spatial layout. Furthermore, lightweighting requires removing as much redundant material as possible from parts while still meeting strength requirements, resulting in complex external curves for automotive components.

[0003] like Figure 6 , 7 When processing irregularly shaped workpieces, the first step often requires clamping the surface of these workpieces, but conventional fixtures cannot stably clamp the complex outline of these workpieces. Utility Model Content

[0004] This application aims to at least partially address one of the aforementioned technical problems in the prior art. To this end, embodiments of this application provide a fixture for irregularly shaped workpieces, which is specifically designed to stably hold such workpieces.

[0005] A fixture for irregularly shaped workpieces, comprising: A first clamping block is provided with a first clamping area. The first clamping area includes a first clearance groove, a first clamping plane, and a first arc-shaped fitting surface. The first clearance groove is provided in the middle of the first clamping block, and the first clamping plane is located on both sides of the first clearance groove. The first clamping plane is used to clamp the clamping surface of the irregular workpiece, and the first arc-shaped fitting surface is provided on the side of the first clamping plane away from the first clearance groove. The second clamping block has a second clamping area, which includes a second clearance groove, a second clamping plane, and a second arc-shaped fitting surface. The second clearance groove is located in the middle of the second clamping block, and the second clamping plane is located on both sides of the second clearance groove. The second clamping plane is used to clamp the clamping surface of the irregular workpiece, and the second arc-shaped fitting surface is located on the side of the second clamping plane away from the second clearance groove. The curvature of the first arc-shaped clamping surface is less than the curvature of the corresponding surface of the irregular workpiece, and the curvature of the second arc-shaped clamping surface is less than the curvature of the corresponding surface of the irregular workpiece. After the first clamping block and the second clamping block clamp the irregular workpiece, there is a gap between the first arc-shaped fitting surface and the corresponding surface of the irregular workpiece, and there is a gap between the second arc-shaped fitting surface and the corresponding surface of the irregular workpiece.

[0006] In optional or preferred embodiments, both the first clearance groove and the second clearance groove are polygonal groove structures.

[0007] In optional or preferred embodiments, both the first clearance groove and the second clearance groove are pentagonal open grooves.

[0008] In an optional or preferred embodiment, both the first clamping block and the second clamping block are fan-shaped structures, with the first clamping area located on the horizontal side of the first clamping block and the second clamping area located on the horizontal side of the second clamping block.

[0009] In an optional or preferred embodiment, the first clamping block and the second clamping block are symmetrically clamped on both sides of the irregular workpiece.

[0010] Based on the above technical solution, the embodiments of this application have at least the following beneficial effects: When the fixture clamps the irregularly shaped workpiece, the first clamping plane and the second clamping plane simultaneously contact the clamping surface of the irregularly shaped workpiece, providing the main clamping force. The first clearance groove and the second clearance groove provide sufficient clearance space for the protruding part of the irregularly shaped workpiece, ensuring that the fixture can completely fit the surface of the irregularly shaped workpiece. The first arc-shaped fitting surface and the second arc-shaped fitting surface maintain an appropriate gap with the curved part of the irregularly shaped workpiece, avoiding applying excessive force to the aluminum irregularly shaped workpiece. This fixture can specifically and stably clamp the irregularly shaped workpiece, facilitating subsequent processing of the irregularly shaped workpiece. Attached Figure Description

[0011] The present application will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a schematic diagram of the structure of an irregular workpiece fixture provided in one embodiment of this application; Figure 2 yes Figure 1 The diagram shown is a schematic representation of the structure for clamping irregularly shaped workpieces in the embodiment shown. Figure 3 yes Figure 2 Another structural diagram from a different perspective; Figure 4 yes Figure 3 The main view; Figure 5 yes Figure 4 A magnified view of a section at point A in the middle; Figure 6This is a structural schematic diagram of the irregularly shaped workpiece in this application; Figure 7 yes Figure 6 A structural diagram from another perspective.

[0012] Figure label: 100 - First clamping block; 110 - First clearance groove; 120 - First clamping plane; 130 - First arc-shaped fitting surface; 200 - Second clamping block; 210 - Second clearance groove; 220 - Second clamping plane; 230 - Second arc-shaped fitting surface; 300 - Irregularly shaped workpiece. Detailed Implementation

[0013] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0014] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0016] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0017] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0018] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0019] For space optimization, automotive components typically have complex outlines. This is because the design and functional requirements of a car dictate that components must adapt to different spatial layouts and mechanical structures. Components in the engine compartment need to be closely packed to make full use of space while ensuring reasonable clearances between parts to facilitate heat dissipation, maintenance, and repair. This necessitates components with complex shapes and outlines to fit into this compact spatial layout. Furthermore, lightweighting requires removing as much redundant material as possible from parts while still meeting strength requirements, resulting in complex external curves for automotive components.

[0020] like Figure 6 , 7 When processing irregularly shaped workpieces, the first step often requires clamping the surface of these workpieces, but conventional fixtures cannot stably clamp the complex outline of these workpieces.

[0021] Reference Figures 1 to 7The irregular workpiece fixture includes a first clamping block 100 and a second clamping block 200, which clamp the irregular workpiece 300 symmetrically. The first clamping block 100 has a first clamping area, which includes a first clearance groove 110, a first clamping plane 120, and a first arc-shaped fitting surface 130. The first clearance groove 110 is located in the middle of the first clamping block 100, providing sufficient clearance space for the protruding parts of the irregular workpiece 300, ensuring that the fixture can adapt to the irregular shape of the workpiece. The first clamping planes 120 are distributed on both sides of the first clearance groove 110. These first clamping planes 120 are specifically designed to contact and clamp the surface of the irregular workpiece 300, providing a stable and reliable clamping force through planar contact, avoiding stress concentration and workpiece deformation problems that may occur with point contact.

[0022] The first arc-shaped adapter surface 130 is located on the side of the first clamping plane 120 away from the first clearance groove 110. The curvature of the first arc-shaped adapter surface 130 is less than the curvature of the corresponding surface of the irregular workpiece 300. Since the irregular workpiece 300 is made of aluminum, if the force applied by the first arc-shaped adapter surface 130 to the surface of the irregular workpiece to be clamped is too large, it will cause the irregular workpiece to deform. Therefore, by designing the curvature of the first arc-shaped adapter surface 130 to be less than the curvature of the corresponding surface of the irregular workpiece 300, when the first clamping plane 120 contacts and clamps the surface of the irregular workpiece 300, a gap will be formed between the first arc-shaped adapter surface 130 and the surface of the irregular workpiece to be clamped, thereby avoiding the problem of deformation of the aluminum irregular workpiece caused by the first arc-shaped adapter surface 130 applying too large a force to the irregular workpiece.

[0023] The second clamping block 200 has a structural design corresponding to the first clamping block 100, and has a completely symmetrical configuration. The second clamping area includes a second clearance groove 210, a second clamping plane 220, and a second arc-shaped fitting surface 230. The second clearance groove 210 is located in the middle of the second clamping block 200, providing clearance space for the complex contour of the other side of the irregularly shaped workpiece 300. The second clamping plane 220 is located on both sides of the second clearance groove 210, and together with the first clamping plane 120, it forms a symmetrical clamping system, ensuring that the irregularly shaped workpiece 300 is subjected to uniform force during clamping, and avoiding tilting or displacement of the irregularly shaped workpiece due to unbalanced clamping force. The second arc-shaped fitting surface 230 is located on the side of the second clamping plane 220 away from the second clearance groove 210, and the curvature of the second arc-shaped fitting surface 230 is also less than the curvature of the corresponding surface of the irregularly shaped workpiece 300. Since the curvature of the second arc-shaped adapter surface 230 is less than the curvature of the corresponding surface of the irregular workpiece 300, after the second clamping plane 220 clamps the clamping plane of the irregular workpiece 300, a gap will also be formed between the second arc-shaped adapter surface 230 and the surface of the irregular workpiece to be clamped, which can effectively prevent the irregular workpiece from being deformed due to excessive force applied by the second arc-shaped adapter surface 230 to the aluminum irregular workpiece.

[0024] In some embodiments, both the first clearance groove 110 and the second clearance groove 210 adopt a polygonal groove structure design.

[0025] Furthermore, in a specific implementation, both the first clearance groove 110 and the second clearance groove 210 are designed as pentagonal open grooves. The pentagonal structure of the first clearance groove 110 and the second clearance groove 210 can not only avoid the protruding parts of irregularly shaped workpieces, but also provide lateral support when necessary, thus achieving an organic combination of clearance and support functions.

[0026] In some embodiments, both the first clamping block 100 and the second clamping block 200 adopt a fan-shaped structure, which provides a good distribution of mechanical strength. The first clamping area is located on the horizontal side of the first clamping block 100, and the second clamping area is located on the horizontal side of the second clamping block 200. This layout ensures the horizontal symmetry of the first clamping area and the second clamping area.

[0027] In actual use, the first clamping block 100 and the second clamping block 200 are fixed to both sides of the irregular workpiece 300 by symmetrical clamping. The symmetrical clamping method of the first clamping block 100 and the second clamping block 200 ensures a balanced distribution of clamping force and avoids deformation or displacement of the irregular workpiece that may be caused by unilateral clamping. When the fixture clamps the irregular workpiece, the first clamping plane 120 and the second clamping plane 220 simultaneously contact the clamping surface of the irregular workpiece, providing the main clamping force; the first clearance groove 110 and the second clearance groove 210 provide sufficient clearance space for the protruding part of the irregular workpiece, ensuring that the fixture can completely fit the surface of the irregular workpiece; the first arc-shaped fitting surface 130 and the second arc-shaped fitting surface 230 maintain appropriate clearance contact with the curved part of the irregular workpiece, providing additional support and positioning, while avoiding applying excessive force to the aluminum irregular workpiece.

[0028] This clamp is specifically designed for gripping. Figure 6 , 7 The irregularly shaped workpiece shown is clamped stably by means of the coordinated operation of the first clearance groove 110, the first clamping plane 120, the first arc-shaped fitting surface 130, the second clearance groove 210, the second clamping plane 220, and the second arc-shaped fitting surface 230, which achieves stable clamping of the complex outline of the irregularly shaped workpiece 300. The first clearance groove 110 and the second clearance groove 210 are used to avoid the protrusions of the irregularly shaped workpiece 300, the first clamping plane 120 and the second clamping plane 220 provide reliable clamping force transmission, and the first arc-shaped fitting surface 130 and the second arc-shaped fitting surface 230 ensure good fit with the curved surface of the irregularly shaped workpiece without causing damage to the workpiece. The design that the curvature of the first arc-shaped adapter surface 130 is less than the curvature of the corresponding surface of the irregular workpiece 300 and the curvature of the second arc-shaped adapter surface 230 is less than the curvature of the corresponding surface of the irregular workpiece 300 creates appropriate gaps between the first arc-shaped adapter surface 130 and the surface of the irregular workpiece, and between the second arc-shaped adapter surface 230 and the surface of the irregular workpiece. This achieves stable support and positioning while avoiding deformation caused by applying excessive force to the aluminum irregular workpiece.

[0029] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A fixture for irregularly shaped workpieces, characterized in that, include: A first clamping block is provided with a first clamping area. The first clamping area includes a first clearance groove, a first clamping plane, and a first arc-shaped fitting surface. The first clearance groove is provided in the middle of the first clamping block, and the first clamping plane is located on both sides of the first clearance groove. The first clamping plane is used to clamp the clamping surface of the irregular workpiece, and the first arc-shaped fitting surface is provided on the side of the first clamping plane away from the first clearance groove. The second clamping block has a second clamping area, which includes a second clearance groove, a second clamping plane, and a second arc-shaped fitting surface. The second clearance groove is located in the middle of the second clamping block, and the second clamping plane is located on both sides of the second clearance groove. The second clamping plane is used to clamp the clamping surface of the irregular workpiece, and the second arc-shaped fitting surface is located on the side of the second clamping plane away from the second clearance groove. The curvature of the first arc-shaped adapter surface is less than the curvature of the corresponding surface of the irregular workpiece, and the curvature of the second arc-shaped adapter surface is less than the curvature of the corresponding surface of the irregular workpiece. After the first clamping block and the second clamping block clamp the irregular workpiece, there is a gap between the first arc-shaped adapter surface and the corresponding surface of the irregular workpiece, and there is a gap between the second arc-shaped adapter surface and the corresponding surface of the irregular workpiece.

2. The irregular workpiece fixture according to claim 1, characterized in that: Both the first clearance groove and the second clearance groove are polygonal groove structures.

3. The irregular workpiece fixture according to claim 2, characterized in that: Both the first clearance groove and the second clearance groove are pentagonal open grooves.

4. The irregular workpiece fixture according to claim 1, characterized in that: Both the first clamping block and the second clamping block have a fan-shaped structure. The first clamping area is located on the horizontal side of the first clamping block, and the second clamping area is located on the horizontal side of the second clamping block.

5. The irregular workpiece fixture according to claim 1, characterized in that: The first clamping block and the second clamping block are symmetrically clamped on both sides of the irregular workpiece.

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