A jaw protection tool and clamping tool

Abstract

The utility model belongs to the technical field of aircraft assembly and manufacturing, disclose a kind of jaw protection frock and clamping tool.The jaw protection frock is used to protect the jaw of clamping tool, and the jaw protection frock has accommodating cavity, the jaw of clamping tool can be embedded in accommodating cavity, the jaw protection frock is provided with assembly port and avoiding mouth, and assembly port and avoiding mouth are communicated with accommodating cavity, assembly port is opened along first direction, avoiding mouth is opened along second direction, first direction is perpendicular to second direction, the jaw protection frock is further provided with limit component, and the relative position of accommodating cavity inner wall and jaw can be locked or unlocked by limit component.The jaw protection frock is easy to assemble and not easy to fall off.

Description

Technical Field

[0001] This utility model relates to the field of aircraft assembly and manufacturing technology, and in particular to a jaw protection tool and clamping tool. Background Technology

[0002] In aircraft riveting, drilling and other operations, different sizes of clamping tools are often used to fix parts or fixtures, such as C-type clamping tools and straight-jaw clamping tools. The jaws of these tools can quickly lock the parts and generate a large clamping force. The jaws are in direct contact with the aircraft products, which poses a risk of product damage. Problems such as paint peeling and slight dents on the product surface are easy to occur, which require a certain amount of time and materials to repair, which is not conducive to improving production efficiency.

[0003] In related technologies, some protective devices for rubber products, although they protect the jaws, are not adequately designed to prevent them from falling off in aircraft assembly and manufacturing environments. They are prone to damage from foreign objects in the production site and are therefore unsuitable for aircraft assembly and manufacturing environments. Utility Model Content

[0004] The purpose of this utility model is to provide a jaw protection fixture and clamping tool, which is easy to assemble and not easy to fall off.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] On one hand, a jaw protection fixture is provided for protecting the jaws of a clamping tool. The jaw protection fixture has a receiving cavity in which the jaws of the clamping tool can be embedded. The jaw protection fixture is provided with an assembly port and a clearance port, and both the assembly port and the clearance port are connected to the receiving cavity. The assembly port is opened along a first direction, and the clearance port is opened along a second direction. The first direction is perpendicular to the second direction. The jaw protection fixture is also provided with a limiting component, which can lock or unlock the relative position between the inner wall of the receiving cavity and the jaws.

[0007] Preferably, the jaw protection fixture includes a first side plate, a second side plate, a third side plate, and a base plate. The first side plate, the second side plate, and the third side plate are connected in sequence and set at an angle. The first side plate, the second side plate, and the third side plate are all set perpendicular to the base plate and fixedly connected. The base plate is set opposite to the clearance opening, and the second side plate is set corresponding to the assembly opening.

[0008] Preferably, the limiting assembly includes two first limiting members spaced apart, which can block or open at least a portion of the assembly opening, and the two first limiting members are respectively intersecting and connected at an angle to the first side plate and the third side plate.

[0009] Preferably, the limiting assembly includes two second limiting members spaced apart, which can block or open at least a portion of the assembly opening, and the two second limiting members are respectively intersecting and connected at an angle to the first side plate and the third side plate.

[0010] Preferably, the first side plate, the second side plate, the third side plate, the bottom plate, the first limiting member, and the second limiting member are integrally formed.

[0011] Preferably, the two second limiting members intersect with the two first limiting members in a one-to-one correspondence and are set at an angle.

[0012] Preferably, the wall thickness of the receiving cavity is 1.5 mm to 2 mm.

[0013] Preferably, the assembly opening is T-shaped; and / or, the clearance opening is T-shaped.

[0014] Preferably, the jaw protection tool is made of thermoplastic polyurethane rubber material.

[0015] On the other hand, a clamping tool is provided, which includes a clamping tool body and two jaw protection fixtures of any of the above technical solutions. The clamping tool body includes two jaws and two connecting rods. The two jaws and two connecting rods are fixedly connected in a one-to-one correspondence. The two jaw protection fixtures are sleeved on the two jaws in a one-to-one correspondence. The connecting rods can pass through the corresponding clearance openings, and the inner wall of the receiving cavity can fit with the corresponding jaws.

[0016] The beneficial effects of this utility model are as follows: It provides a jaw protection fixture and a clamping tool. The jaw protection fixture is provided with a receiving cavity, which allows the jaws of the clamping tool to be embedded in the receiving cavity to protect the jaws. The assembly port and the clearance port facilitate the assembly of the jaws of the clamping tool with the jaw protection fixture. The limiting component is provided to prevent the jaws from detaching from the receiving cavity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the jaw protection tool provided in Embodiment 1 of this utility model;

[0018] Figure 2 This is an assembly drawing of the jaw protection fixture and clamping tool provided in Embodiment 1 of this utility model;

[0019] Figure 3 This is a schematic diagram of the jaw protection tool provided in Embodiment 2 of this utility model;

[0020] Figure 4 This is an assembly drawing of the jaw protection fixture and clamping tool provided in Embodiment 2 of this utility model;

[0021] Figure 5This is a schematic diagram of the jaw protection tool provided in Embodiment 3 of this utility model;

[0022] Figure 6 This is an assembly drawing of the jaw protection fixture and clamping tool provided in Embodiment 3 of this utility model.

[0023] In the diagram: 1. Assembly port; 2. Clearance port; 3. First limiting component; 4. Second limiting component; 5. First side plate; 6. Second side plate; 7. Third side plate; 8. Base plate; 9. Jaw; 10. Connecting rod. Detailed Implementation

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0027] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0028] In aircraft riveting and drilling operations, clamping tools of different specifications are frequently used to secure parts or fixtures. While the jaws of these tools can quickly lock the parts in place and generate significant clamping force, direct contact between the jaws and the aircraft components poses a risk of damage, such as paint chipping or minor dents. Repairs require considerable time and materials, hindering production efficiency. Related technologies utilize rubber products to protect the jaws and the clamped parts or fixtures. However, in aircraft assembly and manufacturing environments, these products often lack adequate anti-detachment design, allowing parts to easily slip from the jaws and cause foreign object damage. Therefore, a jaw protection tool and clamping device are needed to address these issues. The following section provides a detailed introduction to the jaw protection tool and clamping device.

[0029] Example 1:

[0030] On the one hand, please refer to Figure 1 and Figure 2 This embodiment provides a jaw protection fixture for protecting the jaws 9 of a clamping tool. The jaw protection fixture has a receiving cavity in which the jaws 9 can be fitted. The jaw protection fixture is provided with an assembly port 1 and a clearance port 2, both of which are connected to the receiving cavity. The assembly port 1 is opened along a first direction, and the clearance port 2 is opened along a second direction, which is perpendicular to the first direction. The jaw protection fixture is also provided with a limiting component that can lock or unlock the relative position between the inner wall of the receiving cavity and the jaws 9. With this configuration, the receiving cavity allows the jaws 9 of the clamping tool to be fitted into it, thus protecting the jaws 9; the assembly port 1 facilitates the assembly of the jaws 9 of the clamping tool with the jaw protection fixture; and the clearance port 2 prevents interference between the jaw protection fixture and the jaws 9 or connecting rods during assembly. The limiting component locks or unlocks the relative position between the inner wall of the receiving cavity and the jaws 9, preventing the jaws 9 from detaching from the receiving cavity.

[0031] Specifically, in this embodiment, the jaws 9 of the clamping tool are flat-headed jaws.

[0032] Specifically, please refer to Figure 1The jaw protection fixture includes a first side plate 5, a second side plate 6, a third side plate 7, and a base plate 8. The first side plate 5, second side plate 6, and third side plate 7 are sequentially connected and angled. All three side plates are perpendicular to and fixedly connected to the base plate 8. The base plate 8 is positioned opposite the clearance opening 2, and the second side plate 6 corresponds to the assembly opening 1. The base plate 8 has a contact surface for contacting external parts, ensuring that the clamping tool with the jaw protection fixture installed can clamp the external parts. It should be understood that the shape and size of the first side plate 5, second side plate 6, third side plate, and base plate 8 are adaptively adjusted according to the shape and size of the jaws 9 to ensure that the inner wall of the receiving cavity fits snugly against the jaws 9, preventing the jaw protection fixture from detaching from the jaws 9.

[0033] Alternatively, please refer to Figure 1 and Figure 2 The limiting assembly includes two first limiting members 3 spaced apart. Each first limiting member 3 can block or open at least a portion of the assembly opening 1. The two first limiting members 3 intersect and are connected at an angle to the first side plate 5 and the third side plate 7, respectively. This arrangement prevents the jaws 9 from sliding out of the receiving cavity from the assembly opening 1 along the first direction, thereby preventing the jaw protection fixture from detaching from the jaws 9 along the first direction and ensuring the reliability of the jaw protection fixture.

[0034] Specifically, the first limiting member 3 is a limiting block or a limiting baffle. The connections between the two first limiting members 3 and the corresponding first side plate 5 and third side plate 7 are elastic connections. When the jaws 9 need to be inserted into or removed from the jaw protection fixture, only a force needs to be applied along the first direction to deform the first limiting member 3, opening the assembly port 1 for easy assembly and disassembly of the jaw protection fixture. After assembly, under elastic action, the first limiting member 3 returns to its original position, blocking the assembly port 1, thus preventing the jaw protection fixture from falling off the jaws 9 along the first direction. This design facilitates the assembly of the jaw protection fixture and improves work efficiency.

[0035] Optionally, the limiting assembly includes two second limiting members 4 spaced apart. The two second limiting members 4 can block or open at least a portion of the assembly opening 1. The two second limiting members 4 intersect and are connected at an angle to the first side plate 5 and the third side plate 7, respectively. This arrangement prevents the jaws 9 from sliding out of the receiving cavity from the assembly opening 1 along the second direction, thereby preventing the jaw protection fixture from falling off the jaws 9 along the second direction and ensuring the reliability of the jaw protection fixture.

[0036] Optionally, the first side plate 5, the second side plate 6, the third side plate 7, the base plate 8, the first limiting member 3, and the second limiting member 4 are integrally formed. This configuration enhances the structural strength of the jaw protection fixture, prevents cracking and damage during use, extends the service life of the jaw protection fixture, and saves costs.

[0037] Specifically, the jaw protection fixture is made using 3D printing technology, which eliminates the cost of designing and manufacturing tooling molds.

[0038] Furthermore, the two second limiting members 4 intersect with the two first limiting members 3 in a one-to-one correspondence and are set at an angle. Specifically, the angle of the first limiting members 3 and the second limiting members 4 can be adaptively adjusted according to the shape of the jaws 9 to ensure that the inner wall of the receiving cavity fits against the jaws 9, preventing the jaw protection fixture from detaching from the jaws 9 of the clamping tool. At the same time, the intersecting first limiting members 3 and the second limiting members 4 can better distribute and bear the various forces generated by the workpiece during processing, preventing the workpiece from shifting or vibrating during processing, thereby improving the processing stability and quality of the workpiece.

[0039] Preferably, the wall thickness of the receiving cavity is 1.5 mm to 2 mm. This setting avoids damage due to excessively thin walls of the receiving cavity; or, conversely, prevents the jaws 9 of the clamping tool from being unable to fit into the receiving cavity due to excessively thick walls.

[0040] Alternatively, please refer to Figure 1 Assembly port 1 is T-shaped; and / or, clearance port 2 is T-shaped. This configuration provides clearer guidance and positioning for the assembly of the jaws 9 of the clamping tool, reduces errors during the assembly process, and improves assembly efficiency.

[0041] Optionally, the jaw protection tooling is made of thermoplastic polyurethane rubber. This design allows the thermoplastic polyurethane rubber material to possess excellent elasticity and flexibility, enabling it to quickly return to its original shape after being subjected to external force. This allows the tooling to better adapt to the shape of the jaws 9 during assembly, facilitating the entry of the jaws 9 into the receiving cavity and preventing damage to the jaws 9 during assembly and disassembly. Furthermore, using thermoplastic polyurethane rubber in the 3D printing of the jaw protection tooling makes it easy to process and mold, allowing for the creation of complex shapes and structures.

[0042] On the other hand, a clamping tool is provided, which includes a clamping tool body and two jaw protection fixtures as described above. The clamping tool body includes two jaws 9 and two connecting rods. The two jaws 9 and the two connecting rods are fixedly connected in a one-to-one correspondence. The two jaw protection fixtures are fitted onto the two jaws 9 in a one-to-one correspondence. The connecting rods can pass through the corresponding clearance openings 2, and the inner wall of the receiving cavity can fit against the corresponding jaw 9.

[0043] Specifically, to ensure that the inner wall of the receiving cavity can fit snugly against the corresponding jaws 9, the inner wall of the receiving cavity has the same shape as the jaws 9. The dimensions of each side of the inner wall of the receiving cavity and the jaws 9 must meet the preset fit tolerance. That is, the dimension of the inner wall of the receiving cavity is equal to the sum of the dimension of the corresponding side of the jaws 9 and the fit tolerance. For example, when the dimension of one side of the jaws 9 is 10mm and the preset fit tolerance is 0.05mm, the dimension of the side of the inner wall of the receiving cavity corresponding to that side of the jaws 9 is 10.05mm.

[0044] The preset dimensional tolerances are as follows:

[0045] When the side length of jaw 9 is 0mm-10mm, the fit tolerance is 0.02mm-0.05mm;

[0046] When the side length of jaw 9 is 10mm-20mm, the fit tolerance is 0.05mm-0.08mm;

[0047] When the side length of jaw 9 is 20mm-25mm, the fit tolerance is 0.08mm-0.14mm;

[0048] When the side length of jaw 9 is 25mm-30mm, the fit tolerance is 0.14mm-0.20mm.

[0049] This design further ensures that the inner wall of the receiving cavity can fit against the corresponding jaws 9, preventing the jaw protection fixture from detaching from the jaws 9, thus improving the safety and reliability of the clamping tool, while also protecting the parts that need to be clamped.

[0050] Understandably, the dimensions of the inner wall of the receiving cavity can be adaptively adjusted according to the different dimensions of the jaws 9. This embodiment does not specifically limit the dimensions of the inner wall of the receiving cavity.

[0051] Example 2:

[0052] Please refer to Figure 3 and Figure 4 The structure of this embodiment is roughly the same as that of Embodiment 1. The only difference is that in this embodiment, the jaws 9 of the clamping tool are low-profile round-headed jaws, and the shape of the receiving cavity is consistent with the shape of the low-profile round-headed jaws.

[0053] Example 3:

[0054] Please refer to Figure 5 and Figure 6 The structure of this embodiment is roughly the same as that of Embodiment 1. The only difference is that in this embodiment, the jaws 9 of the clamping tool are high-leg round-head jaws, and correspondingly, the shape of the receiving cavity is consistent with the shape of the high-leg round-head jaws.

[0055] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. For those skilled in the art, various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A jaw protection fixture for protecting the jaws (9) of a clamping tool, characterized in that, The jaw protection fixture has a receiving cavity, and the jaws (9) of the clamping tool can be embedded in the receiving cavity. The jaw protection fixture is provided with an assembly port (1) and a clearance port (2), and the assembly port (1) and the clearance port (2) are both connected to the receiving cavity. The assembly port (1) is opened along a first direction, and the clearance port (2) is opened along a second direction. The first direction is perpendicular to the second direction. The jaw protection fixture is also provided with a limiting component, which can lock or unlock the relative position of the inner wall of the receiving cavity and the jaws (9).

2. The jaw protection fixture according to claim 1, characterized in that, The jaw protection fixture includes a first side plate (5), a second side plate (6), a third side plate (7), and a base plate (8). The first side plate (5), the second side plate (6), and the third side plate (7) are connected in sequence and set at an angle. The first side plate (5), the second side plate (6), and the third side plate (7) are all set perpendicularly to the base plate (8) and fixedly connected. The base plate (8) is set opposite to the clearance opening (2), and the second side plate (6) is set corresponding to the assembly opening (1).

3. The jaw protection fixture according to claim 2, characterized in that, The limiting component includes two first limiting members (3) spaced apart. The two first limiting members (3) can block or open at least a portion of the assembly port (1). The two first limiting members (3) are respectively intersecting and connected at an angle to the first side plate (5) and the third side plate (7).

4. The jaw protection fixture according to claim 3, characterized in that, The limiting component includes two second limiting members (4) spaced apart. The two second limiting members (4) can block or open at least a portion of the assembly port (1). The two second limiting members (4) are respectively intersecting and connected at an angle to the first side plate (5) and the third side plate (7).

5. The jaw protection fixture according to claim 4, characterized in that, The first side plate (5), the second side plate (6), the third side plate (7), the bottom plate (8), the first limiting member (3), and the second limiting member (4) are integrally formed.

6. The jaw protection fixture according to claim 4, characterized in that, The two second limiting members (4) intersect with the two first limiting members (3) in a one-to-one correspondence and are set at an angle.

7. The jaw protection fixture according to claim 1, characterized in that, The wall thickness of the receiving cavity is 1.5 mm to 2 mm.

8. The jaw protection fixture according to claim 1, characterized in that, The assembly port (1) is T-shaped; and / or the clearance port (2) is T-shaped.

9. The jaw protection fixture according to any one of claims 1-8, characterized in that, The jaw protection tool is made of thermoplastic polyurethane rubber material.

10. A clamping tool, characterized in that, The clamping tool includes a clamping tool body and two jaw protection fixtures as described in any one of claims 1-9. The clamping tool body includes two jaws (9) and two connecting rods. The two jaws (9) and the two connecting rods are fixedly connected in a one-to-one correspondence. The two jaw protection fixtures are fitted onto the two jaws (9) in a one-to-one correspondence. The connecting rods can pass through the corresponding clearance openings (2). The inner wall of the receiving cavity can fit against the corresponding jaws (9).

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