Clamping and positioning tool for aviation aluminum alloy sliding rail sleeve welding

Abstract

The utility model relates to the technical field of aviation parts, in particular to a clamping and positioning tool for welding an aviation aluminum alloy sliding rail sleeve. The tool is reasonable in design, all the components are cooperated, the bottom plate, the vertical frame and the guide rod are used for providing guide support for displacement of the two movable seats, the lead screw driving assembly is used for driving the two movable seats to be close to each other, the two movable seats clamp a flange pipe and an arc-shaped sleeve through the flange pipe clamping assembly and the sleeve clamping assembly respectively, and therefore the flange pipe and the arc-shaped sleeve are clamped. After the two movable seats are in butt joint, the flange pipe clamping assembly and the sleeve clamping assembly can be in butt joint and can be driven by the overturning driving assembly to synchronously overturn, in this way, a flange pipe and an arc-shaped sleeve can be in butt joint accurately and can synchronously rotate after butt joint, and the requirement for circumferential welding of the inner wall of a butt joint is met.

Description

Technical Field

[0001] This utility model relates to the field of aviation component technology, and in particular to a clamping and positioning tooling for welding aviation aluminum alloy slide rail sleeves. Background Technology

[0002] As a core moving component of the aircraft wing fuel tank system, the design of the aerospace aluminum alloy slide rail sleeve integrates the combined technical requirements of materials mechanics, fluid dynamics, and aerospace structural engineering. In terms of material selection, the use of 7075-T6 aerospace aluminum alloy (tensile strength ≥524MPa) not only meets the high strength requirements but also achieves excellent resistance to stress corrosion through a copper content of 3.5–4.5%, with a density of only 2.81 g / cm³. 3 The characteristics significantly reduce the inertial mass of moving parts. In terms of structural design, the thin-walled features (typical wall thickness 1.2–2.5 mm) employ a variable cross-section design, with localized thickening in stress concentration areas achieved through finite element topology optimization. Functionally, the arc-shaped axis utilizes a combined segmented design to achieve a smooth transition in the motion trajectory. The inner surface undergoes hard anodizing treatment (film thickness 25–30 μm) and is inlaid with a PTFE wear-resistant bushing, with the friction coefficient controlled within the range of 0.08–0.12.

[0003] Our company produces an aviation aluminum alloy slide rail sleeve, which is mainly composed of flange tubes and arc sleeves welded together.

[0004] Traditional clamping and positioning fixtures for welding aerospace aluminum alloy slide rail sleeves have shortcomings. First, they cannot reliably clamp flange fittings and curved sleeve fittings. Second, they cannot accurately align the clamped flange fittings and curved sleeve fittings and drive them to rotate synchronously after alignment to meet the requirements of circumferential welding of the inner wall of the joint. Therefore, optimization and improvement are needed. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned problems existing in the traditional technology and provide a clamping and positioning tool for welding aviation aluminum alloy slide rail sleeves.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0007] A clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves includes a base plate, uprights, guide rods, a screw drive assembly, movable seats, support rollers, a flange pipe clamping assembly, a flipping drive assembly, and a sleeve clamping assembly. Two uprights are symmetrically fixed to the upper side of the base plate. A guide rod penetrating two movable seats and a screw drive assembly for driving the relative displacement of the two movable seats are installed between the two uprights. Support rollers capable of rolling along the base plate are installed at the bottom end of each movable seat. One movable seat contains a flange pipe clamping assembly for clamping a flange pipe and a flipping drive assembly for driving its flipping. The other movable seat contains a sleeve clamping assembly for clamping an arc-shaped sleeve. When the two movable seats are aligned, the sleeve clamping assembly can align with the flange pipe clamping assembly and flip synchronously, thereby achieving alignment and synchronous flipping of the flange pipe and the arc-shaped sleeve.

[0008] Furthermore, in the aforementioned clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves, the lead screw drive assembly consists of a movable plate, a lead screw motor, and a lead screw. The lead screw motor is fixed on an adjacent upright, and a lead screw is installed at the output end of the lead screw motor. The lead screw has two lead screw sections with opposite rotation directions, and a movable plate is sleeved on the outer side of each lead screw section. The bottom end of the movable plate is fixed to the top side of the corresponding movable seat.

[0009] Furthermore, in the aforementioned clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves, the flange pipe clamping assembly includes a first annular seat. The interior of the first annular seat is provided with a first clamping cavity that mates with the flange pipe. The inner wall of the first clamping cavity is provided with a plurality of first vacuum suction cups along the circumferential direction. A first limiting protrusion is installed on the outer side of the first annular seat. The outer side of the first limiting protrusion is evenly distributed with toothed grooves along the circumferential direction. The inner end face of the first annular seat is provided with a plurality of positioning protrusions along the circumferential direction.

[0010] Furthermore, in the aforementioned clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves, the flipping drive assembly consists of a servo motor and a drive gear installed at its output end, and the drive gear meshes with the tooth groove of the first limiting convex ring.

[0011] Furthermore, in the above-mentioned clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves, the sleeve clamping assembly includes a second annular seat. The interior of the second annular seat is provided with a second clamping cavity that cooperates with the arc-shaped sleeve. The inner wall of the second clamping cavity is provided with a plurality of second vacuum suction cups along the circumferential direction. A second limiting protrusion is installed on the outer side of the second annular seat. The inner end face of the second annular seat is provided with a plurality of positioning grooves that cooperate with the positioning protrusions along the circumferential direction.

[0012] Furthermore, in the aforementioned clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves, the adsorption surface of the first vacuum chuck matches the outer surface shape of the flange tail, and the adsorption surface of the second vacuum chuck matches the outer surface shape of the arc-shaped sleeve head.

[0013] Furthermore, in the aforementioned clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves, the movable seat where the flange pipe clamping assembly and the flipping drive assembly are located is provided with a first movable cavity to facilitate the movement of the first annular seat and the first limiting protrusion ring, and the movable seat where the sleeve clamping assembly is located is provided with a second movable cavity to facilitate the movement of the second annular seat and the second limiting protrusion ring.

[0014] Furthermore, in the aforementioned clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves, the upright frame is provided with a clearance through hole to facilitate the avoidance of flange pipes or arc-shaped sleeves.

[0015] The beneficial effects of this utility model are:

[0016] This utility model tooling is rationally designed and mainly consists of a base plate, a vertical frame, a guide rod, a screw drive assembly, movable seats, supporting rollers, a flange pipe clamping assembly, a flip drive assembly, and a sleeve clamping assembly. All components work together, with the base plate, vertical frame, and guide rod providing guidance and support for the displacement of the two movable seats. The screw drive assembly drives the two movable seats closer together. The two movable seats respectively use the flange pipe clamping assembly and the sleeve clamping assembly to clamp the flange pipe and the arc-shaped sleeve. When the two movable seats are aligned, the flange pipe clamping assembly and the sleeve clamping assembly can align and flip synchronously under the drive of the flip drive assembly. This method allows for precise alignment of the flange pipe and the arc-shaped sleeve, and they can rotate synchronously after alignment, meeting the requirements for circumferential welding of the inner wall of the joint.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the aviation aluminum alloy slide rail sleeve in this utility model;

[0021] Figure 3This is a schematic diagram showing the overall usage state of this utility model;

[0022] Figure 4 This is a schematic diagram of the flange pipe clamping assembly in this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the flip drive assembly in this utility model;

[0024] Figure 6 This is a schematic diagram of the sleeve clamping assembly in this utility model;

[0025] In the attached diagram, the components represented by each number are as follows:

[0026] 1-Base plate, 2-Upright frame, 3-Guide rod, 4-Modible seat, 5-Modible plate, 6-Screw motor, 7-Screw, 8-Support roller, 9-Flange pipe clamping assembly, 901-First annular seat, 902-First clamping cavity, 903-First vacuum suction cup, 904-First limiting protrusion ring, 905-Groove, 906-Positioning protrusion, 10-Tilting drive assembly, 101-Servo motor, 102-Drive gear, 11-Sleeve clamping assembly, 111-Second annular seat, 112-Second clamping cavity, 113-Second vacuum suction cup, 114-Second limiting protrusion ring, 115-Positioning groove, 12-Flange pipe, 13-Arc sleeve. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-6As shown, this embodiment provides a clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves, including a base plate 1, uprights 2, guide rods 3, screw drive assembly, movable seats 4, support rollers 8, flange pipe clamping assembly 9, flip drive assembly 10, and sleeve clamping assembly 11. Two uprights 2 are symmetrically fixed to the upper side of the base plate 1. A guide rod 3 penetrating two movable seats 4 and a screw drive assembly for driving the relative displacement of the two movable seats 4 are installed between the two uprights 2. Support rollers 8 capable of rolling along the base plate 1 are installed at the bottom end of the movable seats 4. One movable seat 4 is equipped with a flange pipe clamping assembly 9 for clamping a flange pipe 12 and a flip drive assembly 10 for driving its flipping. The other movable seat 4 is equipped with a sleeve clamping assembly 11 for clamping an arc-shaped sleeve 13. When the two movable seats 4 are aligned, the sleeve clamping assembly 11 can align with the flange pipe clamping assembly 9 and flip synchronously, thereby achieving alignment and synchronous flipping of the flange pipe 12 and the arc-shaped sleeve 13.

[0029] In this embodiment, the lead screw drive assembly consists of a movable plate 5, a lead screw motor 6, and a lead screw 7. The lead screw motor 6 is fixed on the adjacent upright 2, and the lead screw 7 is installed at the output end of the lead screw motor 6. The lead screw 7 has two lead screw segments with opposite directions of rotation. The movable plate 5 is sleeved on the outer side of each lead screw segment, and the bottom end of the movable plate 5 is fixed to the top side of the corresponding movable seat 4.

[0030] In this embodiment, the flange pipe clamping assembly 9 includes a first annular seat 901. The interior of the first annular seat 901 is provided with a first clamping cavity 902 that cooperates with the flange pipe 12. The inner wall of the first clamping cavity 902 is provided with a plurality of first vacuum suction cups 903 along the circumferential direction. A first limiting protrusion ring 904 is installed on the outer side of the first annular seat 902. The outer side of the first limiting protrusion ring 904 is provided with toothed grooves 905 evenly distributed along the circumferential direction. The inner end face of the first annular seat 901 is provided with a plurality of positioning protrusions 906 along the circumferential direction.

[0031] In this embodiment, the flip drive assembly 10 consists of a servo motor 101 and a drive gear 102 installed at its output end. The drive gear 102 meshes with the tooth groove 905 of the first limiting convex ring 904.

[0032] In this embodiment, the sleeve clamping assembly 11 includes a second annular seat 111. The interior of the second annular seat 111 is provided with a second clamping cavity 112 that cooperates with the arc-shaped sleeve 13. The inner wall of the second clamping cavity 112 is provided with a plurality of second vacuum suction cups 113 along the circumferential direction. A second limiting protrusion ring 114 is installed on the outer side of the second annular seat 111. The inner end face of the second annular seat 111 is provided with a plurality of positioning grooves 115 that cooperate with the positioning protrusion 906 along the circumferential direction.

[0033] In this embodiment, the adsorption surface of the first vacuum suction cup 903 is matched with the outer surface shape of the flange tube 12 tail, and the adsorption surface of the second vacuum suction cup 113 is matched with the outer surface shape of the arc sleeve 13 head.

[0034] In this embodiment, the movable seat 4 where the flange pipe clamping assembly 9 and the flipping drive assembly 10 are located has a first movable cavity that facilitates the movement of the first annular seat 901 and the first limiting protrusion ring 904, and the movable seat 4 where the sleeve clamping assembly 11 is located has a second movable cavity that facilitates the movement of the second annular seat 111 and the second limiting protrusion ring 114.

[0035] In this embodiment, the support frame 2 is provided with a clearance through hole to facilitate the avoidance of the flange pipe 12 or the arc sleeve 13.

[0036] The specific application of this embodiment is as follows: This tooling mainly consists of a base plate 1, a vertical frame 2, a guide rod 3, a screw drive assembly, movable seats 4, supporting rollers 8, a flange pipe clamping assembly 9, a flip drive assembly 10, and a sleeve clamping assembly 11. The components work together to provide guidance and support for the displacement of the two movable seats 4 using the base plate 1, the vertical frame 2, and the guide rod 3. The screw drive assembly drives the two movable seats 4 to move closer to each other. The two movable seats 4 respectively use the flange pipe clamping assembly 9 and the sleeve clamping assembly 11 to clamp the flange pipe 12 and the arc sleeve 13. When the two movable seats 4 are connected, the flange pipe clamping assembly 9 and the sleeve clamping assembly 11 can be connected and flipped synchronously under the drive of the flip drive assembly 10. In this way, the flange pipe 12 and the arc sleeve 13 can be accurately connected and can rotate synchronously after connection, meeting the requirements of circumferential welding of the inner wall of the joint.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves, characterized in that, The system includes a base plate, uprights, guide rods, a screw drive assembly, movable seats, support rollers, a flange clamping assembly, a flip drive assembly, and a sleeve clamping assembly. Two uprights are symmetrically fixed to the upper side of the base plate. A guide rod passing through two movable seats and a screw drive assembly for driving the relative displacement of the two movable seats are installed between the two uprights. Support rollers capable of rolling along the base plate are installed at the bottom of each movable seat. One movable seat contains a flange clamping assembly for clamping a flange pipe and a flip drive assembly for driving its flipping. The other movable seat contains a sleeve clamping assembly for clamping an arc-shaped sleeve. When the two movable seats are aligned, the sleeve clamping assembly can align with the flange clamping assembly and flip synchronously, thereby achieving alignment and synchronous flipping of the flange pipe and the arc-shaped sleeve.

2. The clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves according to claim 1, characterized in that, The lead screw drive assembly consists of a movable plate, a lead screw motor, and a lead screw. The lead screw motor is fixed on an adjacent upright. A lead screw is installed at the output end of the lead screw motor. The lead screw has two lead screw segments with opposite directions of rotation. A movable plate is sleeved on the outer side of each lead screw segment. The bottom end of the movable plate is fixed to the top side of the corresponding movable seat.

3. The clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves according to claim 2, characterized in that, The flange clamping assembly includes a first annular seat, the interior of which is provided with a first clamping cavity that mates with the flange. The inner wall of the first clamping cavity is provided with a plurality of first vacuum suction cups along the circumferential direction. A first limiting protrusion is installed on the outer side of the first annular seat. The outer side of the first limiting protrusion is provided with toothed grooves evenly distributed along the circumferential direction. The inner end face of the first annular seat is provided with a plurality of positioning protrusions along the circumferential direction.

4. The clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves according to claim 3, characterized in that, The flip drive assembly consists of a servo motor and a drive gear mounted on its output end, the drive gear meshing with the tooth groove of the first limiting convex ring.

5. The clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves according to claim 4, characterized in that, The sleeve clamping assembly includes a second annular seat, the interior of which is provided with a second clamping cavity that mates with the arc-shaped sleeve. The inner wall of the second clamping cavity is provided with a plurality of second vacuum suction cups along the circumferential direction. A second limiting protrusion is installed on the outer side of the second annular seat. The inner end face of the second annular seat is provided with a plurality of positioning grooves along the circumferential direction that mate with the positioning protrusions.

6. The clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves according to claim 5, characterized in that, The adsorption surface of the first vacuum suction cup matches the outer surface shape of the flange tail, and the adsorption surface of the second vacuum suction cup matches the outer surface shape of the arc-shaped sleeve head.

7. The clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves according to claim 6, characterized in that, The movable seat containing the flange clamping assembly and the flipping drive assembly has a first movable cavity that facilitates the movement of the first annular seat and the first limiting protrusion ring. The movable seat containing the sleeve clamping assembly has a second movable cavity that facilitates the movement of the second annular seat and the second limiting protrusion ring.

8. The clamping and positioning fixture for welding aviation aluminum alloy slide rail sleeves according to claim 7, characterized in that, The support frame is provided with a clearance through hole to facilitate the avoidance of flange pipes or arc sleeves.

Images