Metal plate product repairing and assembling tool

Abstract

The invention provides a sheet metal product repairing and assembling tool, and belongs to the technical field of repairing and assembling tools. The problems that in the fields of aerospace and the like, when a multi-section spliced groove type metal plate product is assembled, the butt joint gap, the step difference and the overall straightness are difficult to accurately control, and a traditional special repairing and assembling tool is poor in universality, high in cost and inconvenient to adjust are solved. The device comprises a bottom plate, a sliding rail, sliding blocks, a supporting seat, a positioning seat and a top plate, the sliding rail is installed on the bottom plate, the sliding rail is connected with the multiple sliding blocks in a sliding mode, the supporting seat is arranged on the sliding blocks, the positioning seat is detachably installed above the supporting seat, the positioning seat is provided with an inner molded surface used for positioning and supporting a sheet metal part, and the top plate is provided with an inner molded surface used for positioning and supporting the sheet metal part. The top plate is installed on the positioning seat, a pressing molded surface is arranged on the top plate, a plurality of fastening bolts are connected to the pressing molded surface in a threaded mode, and the fastening bolts press the inner side of the sheet metal part. The device is mainly used for repairing sheet metal products.

Description

Technical Field

[0001] This invention belongs to the field of repair tooling technology, and in particular relates to a repair tooling for sheet metal products. Background Technology

[0002] In the aerospace manufacturing field, many structural components, especially aircraft skins, often employ segmented, channel-shaped sheet metal structures. These structures are typically formed by connecting straight or curved sections of varying lengths through processes such as welding and bolting to create large or complex integral products.

[0003] However, in the assembly process of such multi-segment spliced ​​products, how to accurately control the fit quality at the joints of each segment has always been a technological challenge. For example... Figure 7 As shown, after segmented connection, gaps and step differences are easily generated at the docking points, and the straightness of the overall structure is also difficult to guarantee. Assembly accuracy issues directly affect the product's aerodynamic performance, structural strength, appearance quality, and subsequent system installation and compatibility.

[0004] Currently, when repairing and fitting grooved products of different lengths and cross-sectional shapes, it is often necessary to design and manufacture dedicated fixed tooling for each specific product. This method not only results in high tooling development and manufacturing costs and long cycles, but also poor tooling versatility, making it unable to adapt to changes in product models or sizes. This leads to cumbersome production preparation, a heavy burden on tooling inventory management, and difficulty in meeting the production needs of multi-variety, small-batch, or rapid-response production.

[0005] Therefore, there is an urgent need for a universal repair tool that can adapt to products of different specifications, is easy to adjust, and can ensure high assembly accuracy, in order to solve the problems of high specialization, inconvenience of adjustment, and high cost of existing tooling, thereby improving assembly efficiency and quality. Summary of the Invention

[0006] In view of this, the present invention aims to propose a sheet metal product repair tooling to solve the problems of difficulty in accurately controlling the butt joint gap, step difference and overall straightness during the assembly of multi-segment spliced ​​groove-shaped sheet metal products in aerospace and other fields, and the poor versatility, high cost and inconvenience of traditional special repair tooling.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a sheet metal product repair fixture, comprising a base plate, a slide rail, a slider, a support seat, a positioning seat, and a top plate. The slide rail is mounted on the base plate, and multiple sliders are slidably connected to the slide rail. A support seat is provided on the slider. The positioning seat is detachably mounted above the support seat. The positioning seat has an inner surface for positioning and supporting the sheet metal part. The top plate is mounted on the positioning seat, and a pressing surface is provided on the top plate. Multiple fastening bolts are screwed onto the pressing surface, and the fastening bolts press against the inner side of the sheet metal part.

[0008] Furthermore, the support base has an I-shaped structure.

[0009] Furthermore, the upper surface of the support base and the bottom of the positioning base are provided with positioning pin holes and threaded holes, with positioning pins inserted into the positioning pin holes and screws threaded into the threaded holes.

[0010] Furthermore, a positioning bolt is installed at the center of the support base, and the positioning bolt abuts against the base plate after being tightened.

[0011] Furthermore, positioning blocks are provided at both ends of the slide rail, and the positioning blocks are connected to the base plate.

[0012] Furthermore, a longitudinal reinforcing rib is provided below the base plate, and transverse reinforcing ribs are provided at intervals below the longitudinal reinforcing rib.

[0013] Furthermore, the upper end of the top plate is connected to the positioning seat via connecting bolts.

[0014] Furthermore, two parallel slide rails are installed on the base plate.

[0015] Furthermore, the slide rail is fixed to the base plate by screw connection, and the support base is fixedly installed on the slider by screw connection.

[0016] Furthermore, the inner surface shape of the positioning seat is the same as the outer surface shape of the sheet metal part.

[0017] Compared with the prior art, the beneficial effects of the present invention are: the present invention provides a universal and high-precision repair tooling, which can effectively solve the problem of assembly accuracy control of multi-segment splicing groove sheet metal products and the problem of poor adaptability of traditional tooling mentioned in the background art.

[0018] The sheet metal product repair fixture described in this invention achieves high-precision control of gaps, step differences, and overall straightness at mating positions within 0.1mm, significantly improving product assembly quality. This fixture offers high versatility and flexibility. The I-shaped support plate, through the cooperation of sliders and slide rails, can move freely along the base plate, adjusting the relative distance between different positioning seats. One set of fixtures can be used to repair grooved products of different lengths. Furthermore, the positioning seats are designed as detachable structures, and their inner surfaces can be machined according to the specific structure of the grooved product to be repaired. By changing positioning seats with different surfaces, one set of fixtures can be used for repairing products with different skin structures. This overcomes the shortcomings of existing technologies, such as high development and manufacturing costs, long cycles, poor versatility, and heavy inventory management burdens, which require designing and manufacturing dedicated fixed fixtures for each specific product.

[0019] This invention achieves multi-purpose tooling by combining sliding adjustment with modular replacement positioning seats. It can well adapt to the production needs of multi-variety, small-batch or rapid response, and greatly improve the efficiency and flexibility of production preparation while ensuring high assembly accuracy. Attached Figure Description

[0020] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a three-dimensional structural diagram of a sheet metal product repair tooling according to the present invention; Figure 2 This is a schematic diagram of the main structure of a sheet metal product repair tooling according to the present invention; Figure 3 This is a side view of a sheet metal product repair tooling according to the present invention. Figure 4 This is a schematic diagram of the positioning seat connection structure described in this invention; Figure 5 This is a schematic diagram of the top plate structure described in this invention; Figure 6 This is a schematic diagram of the top plate mounting structure described in this invention; Figure 7 This is a schematic diagram of the sheet metal product structure described in this invention.

[0021] In the picture: 1-Base plate, 2-Slide rail, 3-Slider, 4-Support seat, 5-Positioning seat, 6-Top plate, 7-Positioning pin, 8-Positioning block, 9-Longitudinal reinforcing rib, 10-Transverse reinforcing rib, 11-Sheet metal part, 12-Connecting bolt, 13-Positioning bolt, 14-Fastening bolt. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present invention can be combined with each other, and the described embodiments are only some embodiments of the present invention, not all embodiments.

[0023] See Figure 1-7This embodiment describes a sheet metal product repair fixture, which includes a base plate 1, a slide rail 2, sliders 3, a support seat 4, a positioning seat 5, and a top plate 6. The slide rail 2 is mounted on the base plate 1, and multiple sliders 3 are slidably connected to the slide rail 2. The support seat 4 is provided on the sliders 3. The positioning seat 5 is detachably mounted above the support seat 4. The positioning seat 5 has an inner surface for positioning and supporting the sheet metal part 11. The top plate 6 is mounted on the positioning seat 5, and a pressing surface is provided on the top plate 6. Multiple fastening bolts 14 are screwed onto the pressing surface, and the fastening bolts 14 press against the inner side of the sheet metal part 11.

[0024] The support base 4 described in this embodiment has an I-shaped structure. The upper surface of the support base 4 and the bottom of the positioning base 5 are provided with positioning pin holes and threaded holes. Positioning pins 7 are inserted into the positioning pin holes, and screws are screwed into the threaded holes. A positioning bolt 13 is installed at the center of the support base 4. After the positioning bolt 13 is tightened, it abuts against the base plate 1. Positioning blocks 8 are provided at both ends of the slide rail 2. The positioning blocks 8 are connected to the base plate 1. A longitudinal reinforcing rib 9 is provided below the base plate 1. A transverse reinforcing rib 10 is provided at intervals below the longitudinal reinforcing rib 9. The upper end of the top plate 6 is connected to the positioning base 5 by connecting bolts 12. Two slide rails 2 are installed parallel to each other on the base plate 1. The slide rails 2 are fixed to the base plate 1 by screwing. The support base 4 is fixedly installed on the slider 3 by screwing. The inner surface shape of the positioning base 5 is the same as the outer surface shape of the sheet metal part 11.

[0025] This embodiment of a sheet metal product repair fixture includes a base plate 1, slide rails 2, sliders 3, support seats 4, positioning seats 5, and a top plate 6. The base plate 1 serves as the foundation platform for the entire fixture, with longitudinal reinforcing ribs 9 below it. Transverse reinforcing ribs 10 are spaced below the longitudinal reinforcing ribs 9 to enhance the structural rigidity and stability of the base plate 1. Two slide rails 2 are installed parallel to each other on the upper surface of the base plate 1 via screw connections. Positioning blocks 8 are provided at both ends of the slide rails 2, and the positioning blocks 8 are connected to the base plate 1 to define the installation position of the slide rails 2.

[0026] The slider 3 is installed in conjunction with the slide rail 2 and can slide freely along the slide rail 2. The support base 4 is fixedly installed on the slider 3 by screw connection. In this embodiment, the support base 4 is preferably of I-shape to ensure structural strength. The upper surface of the support base 4 is machined with two positioning pin holes and two threaded holes. Two positioning bolts 13 are installed at the center of the support base 4. When the slider 3 drives the support base 4 to slide to the desired position, the positioning bolts 13 are tightened so that their lower ends abut against the base plate 1, thus firmly fixing the support base 4 in the current position and locking its movement along the slide rail 2.

[0027] The positioning seat 5 is detachably mounted on top of the support seat 4. The bottom of the positioning seat 5 is machined with positioning pin holes and threaded holes corresponding to the positions on the upper surface of the support seat 4. During installation, precise positioning is achieved by inserting the positioning pin 7 into the aligned positioning pin holes, and then a screw is used to pass through the threaded holes for fastening, thereby reliably mounting the positioning seat 5 onto the support seat 4. The inner surface of the positioning seat 5 is machined according to the outer surface shape of the grooved sheet metal part 11 to be repaired, and is used for precise positioning and support of the sheet metal part 11. By replacing the positioning seat 5 with different inner surfaces, this tooling can be adapted to grooved products with different cross-sectional shapes.

[0028] The top plate 6 is mounted on the upper end of the positioning seat 5 via connecting bolts 12. The top plate 6 has a clamping surface on which multiple fastening bolts 14 are screwed. During operation, the sheet metal parts 11 to be repaired are placed on the corresponding positioning seats 5, ensuring their outer surfaces align with the inner surfaces of the positioning seats 5. Then, by tightening the fastening bolts 14 on the top plate 6, the lower ends of the bolts press against the inner side of the sheet metal parts 11, thereby firmly pressing and fitting the sheet metal parts 11 onto the surface of the positioning seats 5.

[0029] When using: First, as Figure 7 As shown, the sheet metal product is composed of straight or curved groove-shaped sheet metal parts 11 of different lengths connected together. Based on the cross-sectional shape of the sheet metal product to be repaired, a matching positioning seat 5 is selected or machined, and then installed onto the support seat 4 using positioning pins 7 and screws. Next, each sheet metal part 11 is placed onto its corresponding positioning seat 5, and the top plate 6 is installed. The fastening bolts 14 on the top plate 6 are tightened to secure each sheet metal part 11. Then, according to the theoretical length or actual fitting requirements of each segment of the product, each slider 3 and the associated support seat 4 and positioning seat 5 assembly are slid along the slide rail 2 to adjust the relative distance between each positioning seat 5. After adjustment, the positioning bolt 13 in the center of the support seat 4 is tightened to fix the position of each component. At this point, all sheet metal segments are precisely positioned and clamped in the preset positions, and their end-to-end mating relationships are precisely controlled. In this state, the mating joints of the sheet metal parts can be repaired, such as by grinding and adjusting, to ensure that the gaps, step differences, and overall straightness after mating meet the high precision requirements of within 0.1mm. After the repair is completed, loosen the fastening bolt 14 and the positioning bolt 13, and the product can be removed.

[0030] This embodiment utilizes the slider 3 and the slide rail 2 to adjust the distance between the positioning seats 5 to accommodate products of different lengths; by replacing the positioning seats 5 with different inner surfaces, it can accommodate products with different cross-sectional shapes, thereby achieving high-precision and universal repair of a set of tooling for various specifications of grooved sheet metal products.

[0031] The specific embodiments of the present invention disclosed above are merely illustrative of the invention. These embodiments do not exhaustively describe all details, nor do they limit the invention to the specific embodiments described. 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 the invention, thereby enabling those skilled in the art to better understand and utilize the invention.

Claims

1. A sheet metal product repair tooling, characterized in that: It includes a base plate (1), a slide rail (2), a slider (3), a support seat (4), a positioning seat (5), and a top plate (6). The slide rail (2) is mounted on the base plate (1). Multiple sliders (3) are slidably connected on the slide rail (2). The support seat (4) is provided on the slider (3). The positioning seat (5) is detachably mounted above the support seat (4). The positioning seat (5) has an inner surface for positioning and supporting the sheet metal part (11). The top plate (6) is mounted on the positioning seat (5). The top plate (6) has a pressing surface. Multiple fastening bolts (14) are screwed onto the pressing surface. The fastening bolts (14) press the inner side of the sheet metal part (11).

2. The sheet metal product repair fixture according to claim 1, characterized in that: The support base (4) has an I-shaped structure.

3. The sheet metal product repair tooling according to claim 1, characterized in that: The upper surface of the support base (4) and the bottom of the positioning base (5) are provided with positioning pin holes and threaded holes. A positioning pin (7) is inserted into the positioning pin hole, and a screw is threaded into the threaded hole.

4. The sheet metal product repair fixture according to claim 1, characterized in that: A positioning bolt (13) is installed at the center of the support base (4), and the positioning bolt (13) abuts against the base plate (1) after being tightened.

5. The sheet metal product repair fixture according to claim 1, characterized in that: The slide rail (2) is provided with positioning blocks (8) at both ends, and the positioning blocks (8) are connected to the base plate (1).

6. The sheet metal product repair fixture according to claim 1, characterized in that: A longitudinal reinforcing rib (9) is provided below the base plate (1), and transverse reinforcing ribs (10) are provided at intervals below the longitudinal reinforcing rib (9).

7. The sheet metal product repair fixture according to claim 1, characterized in that: The top plate (6) is connected to the positioning seat (5) by connecting bolts (12) at its upper end.

8. The sheet metal product repair tooling according to claim 1, characterized in that: Two slide rails (2) are installed in parallel on the base plate (1).

9. A sheet metal product repair fixture according to claim 1, characterized in that: The slide rail (2) is fixed to the base plate (1) by screwing, and the support seat (4) is fixed to the slider (3) by screwing.

10. A sheet metal product repair fixture according to claim 1, characterized in that: The inner surface shape of the positioning seat (5) is the same as the outer surface shape of the sheet metal part (11).

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