Radial riveting device for flexible clamp
By using the cross-groove structure design of the radial riveting device for flexible clamps, the problem of easy cracking and bending of the pin after riveting is solved, achieving efficient and reliable riveting effect and improving the stability of aviation hydraulic and fuel pipeline connections.
Patent Information
- Application Number
- CN202520429725.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-03-12
AI Technical Summary
Traditional pins are prone to cracking and bending after riveting, which reduces the structural resilience of aviation hydraulic and fuel line connections and makes it difficult to guarantee product quality.
A flexible clamp radial riveting device is adopted, including a base, a pressure head, an upper pressure block and a lower pressure block. The cross-groove structure is used to form a cross-groove structure at the tail end of the pin under radial extrusion, thereby expanding the maximum size profile to limit it on the product and prevent loosening.
It improves product reliability and anti-loosening properties, reduces part wear, and enhances riveting efficiency and structural stability.
Smart Images
Figure CN223801489U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hydraulic system pipeline connection technical field especially relates to a radial riveting device for flexible clamp. BACKGROUND
[0002] With the rapid development of national aviation industry, higher requirements are put forward for the safety performance of aircraft operation, and the safety and reliability performance of the aviation pipeline system is extremely important. The hydraulic system and fuel pipeline system on the aircraft are important components of the pipeline system, and the aviation hydraulic and fuel pipeline connection end is usually fixed by quick-release flexible joint to ensure the stability and safety of the pipeline. The sheet metal part of the quick-release flexible joint is fixed on the pin shaft, and the traditional pin shaft is fixed in the hole of the product by high-pressure riveting technology, but the pin shaft is deformed after riveting, which is easy to crack, and the pin shaft is easy to bend after being subjected to strong force, thereby reducing the structural risk resistance and affecting the product quality. SUMMARY
[0003] According to the above technical problems, a radial riveting device for flexible clamp is provided. The technical means adopted by the utility model is as follows:
[0004] A radial riveting device for flexible clamp, comprising: a base, a pressure head, an upper pressing block, a lower pressing block and a fixed block, the fixed block is installed on the base, the fixed block is provided with a guide sliding rail structure, the upper pressing block and the lower pressing block are arranged in the guide sliding rail structure, the upper pressing block slides along the guide sliding rail structure, the pressure head is installed on the base through gap fit, one side of the pressure head is connected with a hydraulic pump, and the other side is connected with the upper pressing block; the upper pressing block is located between the pressure head and the lower pressing block, a cross-shaped groove structure I is arranged on one side of the upper pressing block close to the lower pressing block, and a cross-shaped groove structure II is arranged on one side of the lower pressing block close to the upper pressing block.
[0005] Further, the base comprises a first end and a second end, a groove structure is arranged between the first end and the second end, the fixed block is installed in the groove structure, the upper pressing block is close to the first end, the lower pressing block is close to the second end, the second end is used for limiting the movement of the lower pressing block, and a through hole structure is formed in the inside of the first end.
[0006] Further, one side of the pressure head has an external thread structure I, and a boss structure is arranged at a position close to the external thread structure I; the external thread structure I is threadedly connected with the hydraulic pump, and the boss structure is gap-fitted with the through hole structure of the base.
[0007] Further, one end of the upper pressing block has an internal thread structure, the other side of the pressure head has an external thread structure II, and the external thread structure II is threadedly connected with the internal thread structure.
[0008] Further, the upper pressing block is provided with a U-shaped groove structure I, the lower pressing block is provided with a U-shaped groove structure II, the inner side of the guide slide rail structure is provided with a protruding structure, the U-shaped groove structure I and the U-shaped groove structure II are connected in a clamping mode with the protruding structure, and the U-shaped groove structure I is connected in a sliding mode with the protruding structure.
[0009] Further, the side end face of the upper pressing block close to the lower pressing block is a plane, and the cross-shaped groove structure I is arranged on the side end face.
[0010] The end face of the lower pressing block close to the upper pressing block is a plane, and the cross-shaped groove structure II is arranged on the end face.
[0011] Further, the fixing block is provided with a threaded hole structure, and a screw is connected in a matching mode in the threaded hole structure, and the fixing block is installed on the base through the screw.
[0012] Compared with the prior art, the radial riveting device for the flexible clamp has the following advantages:
[0013] 1. The radial riveting device for the flexible clamp has the advantages of few components, simple structure, easy operation, high efficiency and the like.
[0014] 2. In the radial riveting device for the flexible clamp, the tail end of the pin shaft is subjected to a radial extrusion force in the riveting process, thereby effectively solving the problems of cracking and bending of the pin shaft after riveting, reducing the abrasion between parts, and improving the reliability of the product.
[0015] 3. In the radial riveting device for the flexible clamp, the upper pressing block and the lower pressing block have the cross-shaped groove structure, and the tail end of the pin shaft has the cross-shaped structure under the action of the radial extrusion force after riveting, thereby expanding the maximum size profile of the tail end of the pin shaft, and limiting the product, and having good anti-loosening property.
[0016] Based on the above reasons, the radial riveting device for the flexible clamp can be widely popularized in the field of hydraulic system pipeline connection. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.
[0018] Figure 1 It is a structural schematic view of the present application.
[0019] Figure 2It is a structure schematic view of the base of the utility model.
[0020] Figure 3 It is a structure schematic view of the pressure head of the utility model.
[0021] Figure 4 It is a structure schematic view of the upper pressing block of the utility model.
[0022] Figure 5 It is a structure schematic view of the lower pressing block of the utility model.
[0023] Figure 6 It is a structure schematic view of the fixed block of the utility model.
[0024] In the drawing: 1, base; 2, pressure head; 3, upper pressing block; 4, lower pressing block; 5, fixed block;
[0025] 11, first end; 12, through hole structure; 13, second end;
[0026] 21, external thread structure I; 22, boss structure; 23, external thread structure II;
[0027] 31, internal thread structure; 32, U-shaped groove structure I; 33, cross-shaped groove structure I;
[0028] 41, end face; 42, cross-shaped groove structure II; 43, U-shaped groove structure II;
[0029] 51, threaded hole structure; 52, guide slide rail structure; 53, protruding structure. DETAILED DESCRIPTION
[0030] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be described clearly and completely below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0031] The utility model provides a kind of radial riveting device for flexible clamp with high reliability, high anti-looseness, high riveting efficiency, simple structure, easy operation and other advantages, solve the problems existing in existing quick-release flexible joint.
[0032] As Figure 1As shown, a flexible clamp radial riveting device includes a base 1, a pressure head 2, an upper pressing block 3, a lower pressing block 4 and a fixed block 5. The upper pressing block 3 and the lower pressing block 4 are installed in the guide slide rail structure 52 of the fixed block 5, the upper pressing block 3 slides along the guide slide rail structure 52, the fixed block 5 is installed on the base 1 by screws, and the pressure head 2 is installed on the base 1 by clearance fit, one side of the pressure head 2 is connected with a hydraulic pump, and the other side is connected with the upper pressing block 3; the upper pressing block 3 is located between the pressure head 2 and the lower pressing block 4, and under the pressure action of the hydraulic pump, the pressure head 2 and the upper pressing block 3 move synchronously, and the lower pressing block 4 cooperates to realize pin shaft riveting. The side of the upper pressing block 3 close to the lower pressing block 4 is provided with a cross groove structure I 33, and the side of the lower pressing block 4 close to the upper pressing block 3 is provided with a cross groove structure II 42. After the two side end faces of the upper pressing block 3 and the lower pressing block 4 contact, the cross groove structure I 33 and the cross groove structure I 33 can form a cross hole structure in opposite combination.
[0033] The base 1 has a stepped platform structure, as shown in Figure 2 , the material of which is DC53, the first end 11 (left end) of the base 1 has a through hole structure 12, which provides space for the installation of the pressure head 2, the middle space of the base 1 ensures the riveting process, and the second end 13 (right end) of the base 1 is the terminal position of the riveting process, which limits the movement of the lower pressing block 4 and provides reliability for the riveting process. The first end 11 and the second end 13 are recessed structures (the middle space of the base 1), and the fixed block 5 is installed in the recessed structure. The upper pressing block 3 is close to the first end 11, and the lower pressing block 4 is close to the second end 13.
[0034] The pressure head 2 has a rotary body structure feature, as shown in Figure 3 , the material of which is Cr12MoV, the left side of the pressure head 2 is an external thread structure I 21, which is threadedly connected with the hydraulic pump; the boss structure 22 adjacent to the external thread structure I 21 is clearance fitted with the through hole structure 12 of the base 1; the end adjacent to the boss structure 22 is an external thread structure II 23, which is threadedly connected with the internal thread structure 31 of the left end of the upper pressing block 3.
[0035] The upper pressing block 3 is made of DC53, and the structure diagram is shown in Figure 4 , one end of the upper pressing block 3 has an internal thread structure 31, which is threadedly connected with the external thread structure II 23 of the pressure head 2, so as to ensure that the pressure head 2 and the upper pressing block 3 move synchronously under the pressure action of the hydraulic pump; the middle part has a U-shaped groove structure 32, which facilitates sliding when the hydraulic pump applies pressure; the other end of the upper pressing block 3 has a cross groove structure I 33, which provides guarantee for the riveting of the tail end of the pin shaft. The side end face of the upper pressing block 3 close to the lower pressing block 4 is a plane, and the cross groove structure I 33 is arranged on the side end face.
[0036] The lower pressing block 4 is made of DC53, and the structure diagram is shown in Figure 5The end face 41 of the upper pressing block 3 is a plane, and the end face 41 has a cross-shaped groove structure II 42. When the cross-shaped groove structure II 42 of the lower pressing block 4 cooperates with the cross-shaped groove structure I 33 of the upper pressing block 3, the cross-shaped structure of the pin shaft tail end is formed after riveting, the maximum size profile of the pin shaft tail end is expanded, and the pin shaft tail end is limited on the product, thereby having good anti-loosening property. The side wall of the lower pressing block 4 is provided with a U-shaped groove structure II 43.
[0037] The fixed block 5 is made of DC53, and the structural schematic diagram is shown in Figure 6 The fixed block 5 has a threaded hole structure 51, which is installed on the riveting device base 1 through a screw. In addition, the fixed block 5 has a guide rail structure 52, which plays a role in fixing the upper pressing block 3 and the lower pressing block 4, and at the same time, when the hydraulic pump applies pressure, the upper pressing block 3 moves smoothly, thereby realizing the riveting of the pin shaft tail end. The inner side of the guide rail structure 52 is provided with a protruding structure 53, the U-shaped groove structure I 32 and the U-shaped groove structure II 43 are connected with the protruding structure 53 through clamping connection, and the U-shaped groove structure I 32 is connected with the protruding structure 53 through sliding connection, and the upper pressing block 3 can slide along the protruding structure 53.
[0038] In use, first, the base 1 is placed on a fixed plane, then the outer thread structure I 21 on the left side of the pressing head 2 is threadedly connected with the hydraulic pump, the boss structure 22 adjacent to the outer thread structure I 21 is gap-fitted with the through hole structure 12 of the base 1, one end adjacent to the boss structure 22 is an outer thread structure II 23, the outer thread structure II 23 is threadedly connected with the inner thread structure 31 of the left end of the upper pressing block 3, then the fixed block 5 is installed on the riveting device base 1 through a screw, and the upper pressing block 3 and the lower pressing block 4 are installed in the guide rail structure 52 of the fixed block 5. The pin shaft is placed between the cross-shaped groove structure I 33 of the upper pressing block 3 and the cross-shaped groove structure II 42 of the lower pressing block 4, and the hydraulic pump is started. Under the action of the force provided by the hydraulic pump, the pressing head 2 is driven to move along the radial direction through thread connection. Since the outer thread structure II 23 at the right end of the pressing head 2 is threadedly connected with the inner thread structure 31 of the upper pressing block 3, the pressing head 2 and the upper pressing block 3 move synchronously, and under the action of the radial force, the lower pressing block 4 is contacted, so that the cross-shaped structure of the pin shaft tail end is formed, and the riveting of the pin shaft is finally realized.
[0039] Compared with the riveting device of other structure forms commonly used before, the device has the following advantages: the device has the advantages of less component parts, simple structure, easy operation, high efficiency and the like. In addition, in the riveting process, the tail end of the pin shaft is subjected to a radial extrusion force, effectively solving the problems of cracking and bending of the pin shaft after riveting, reducing the wear between parts, thereby improving the reliability of the product; at the same time, in the riveting process, the upper pressing block and the lower pressing block have a cross groove structure, and under the action of the radial extrusion force, the tail end of the riveted pin shaft has a cross structure, the maximum size profile of the tail end of the pin shaft is expanded, and then the tail end is limited on the product, having good anti-looseness, finally meeting the performance index of the self-locking performance of the quick-release flexible joint.
[0040] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.
Claims
1. A radial riveting device for flexible banding, characterized by, The utility model relates to a kind of hydraulic press, including: Base (1), pressure head (2), upper pressing block (3), lower pressing block (4) and fixed block (5), the fixed block (5) is installed on base (1), the fixed block (5) is equipped with guide slide rail structure (52), the upper pressing block (3) and lower pressing block (4) are placed in guide slide rail structure (52), the upper pressing block (3) is slid along guide slide rail structure (52), the pressure head (2) is installed on base (1) by clearance fit, one side of the pressure head (2) is connected with hydraulic pump, the other side is connected with upper pressing block (3);The upper pressing block (3) is between pressure head (2) and lower pressing block (4), the side of the upper pressing block (3) close to lower pressing block (4) is equipped with cross-shaped groove structure I (33), the side of the lower pressing block (4) close to upper pressing block (3) is equipped with cross-shaped groove structure II (42).
2. The radial riveting device for flexible collars according to claim 1, characterized in that The base (1) includes first end (11) and second end (13), the first end (11) and the second end (13) are recess structure, the fixed block (5) is installed in recess structure, the upper pressing block (3) is close to the first end (11), the lower pressing block (4) is close to the second end (13), and the second end (13) is used to limit the movement of the lower pressing block (4), the inside of the first end (11) is provided with through-hole structure (12).
3. The radial riveting device for flexible collars according to claim 1, characterized in that, The side of the pressure head (2) has outer thread structure I (21), and the middle close to outer thread structure I (21) is provided with boss structure (22);The outer thread structure I (21) is connected with the hydraulic pump by thread, and the boss structure (22) is connected with the through-hole structure (12) of base (1) by clearance fit.
4. The radial riveting device for flexible collars according to claim 1, characterized in that, One end of the upper pressing block (3) has inner thread structure (31), the other side of the pressure head (2) has outer thread structure II (23), and the outer thread structure II (23) is connected with the inner thread structure (31) by thread.
5. The radial riveting device for flexible collars according to claim 1, characterized in that, The upper pressing block (3) is equipped with U-shaped groove structure I (32), the lower pressing block (4) is equipped with U-shaped groove structure II (43), the inner side of the guide slide rail structure (52) is equipped with protruding structure (53), the U-shaped groove structure I (32) and the U-shaped groove structure II (43) are connected with the protruding structure (53) by clamping, and the U-shaped groove structure I (32) is connected with the protruding structure (53) by sliding.
6. The radial riveting device for flexible collars according to claim 1, characterized in that, The side end face of the upper pressing block (3) close to the lower pressing block (4) is a plane, and the cross-shaped groove structure I (33) is arranged on the side end face; The end face (41) of the lower pressing block (4) close to the upper pressing block (3) is a plane, and the cross-shaped groove structure II (42) is arranged on the end face (41).
7. The radial riveting device for flexible collars according to claim 1, wherein The fixed block (5) is equipped with threaded hole structure (51), the threaded hole structure (51) is connected with screw by cooperation, and the fixed block (5) is installed on base (1) by screw.