A butt joint process plug
By designing detachable process inserts, the problems of complex coordination of process equipment and easy deformation of machining slots in aircraft manufacturing and assembly were solved, achieving the effects of controllable precision and cost savings.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGXI HONGDU AVIATION IND GRP
- Filing Date
- 2025-07-24
- Publication Date
- 2026-07-24
AI Technical Summary
In the existing aircraft manufacturing and assembly process, when using analog quantity transfer methods, the coordination of process equipment is complicated, the machining slots are prone to deformation and cannot be reused, resulting in high processing costs and inconsistent accuracy.
Design a mating process insert, including a U-shaped insert, a control gap pad, and countersunk screws. Through detachable installation and precision grinding, ensure thickness accuracy, achieve detachability and interchangeability, and facilitate the mating requirements of different gap specifications.
It improves the precision and detachability of process inserts, reduces processing costs, enables secondary use, and improves production efficiency.
Smart Images
Figure CN224546292U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aircraft assembly structure technology, and in particular to a process insert for assembly. Background Technology
[0002] Currently, in aircraft manufacturing and assembly, some critical dimensions still rely on analog measurement to ensure coordination accuracy. This involves using physical analog measurements (mold lines, templates, standard samples, etc.) to transmit the product's shape and dimensions during manufacturing, achieving coordination between process equipment and interchangeability between parts. However, the coordination of process equipment requires numerous auxiliary tools such as alignment pins and process blocks to ensure accurate dimensional and shape transmission. For example, in some jigs, the joints of beams 1-5 need to be aligned and coordinated according to specifications. This involves numerous alignment gap specifications, varying mating surfaces, and the need to avoid alignment pins, making it quite complex. Current alignment methods involve cutting a single sheet of material and then machining the corresponding alignment gap grooves and notches for the pins using wire cutting. This method is prone to deformation due to processing stress during groove machining, affecting the accuracy of the blocks. Furthermore, the alignment gaps for each joint are different, resulting in numerous specifications and quantities, high processing costs, and the method is only suitable for alignment of gaps of the same specification, making reuse impossible. Utility Model Content
[0003] The technical problem solved by this utility model is to provide a process insert for use in combination, so as to solve the problems existing in the background art.
[0004] The technical problem solved by this utility model is achieved by the following technical solution: A process insert for mating includes insert blocks, a control gap pad, a straight handle, and countersunk screws. The control gap pad is detachably fitted between two insert blocks, and the upper part of the two insert blocks is provided with a countersunk through hole for the countersunk screw to pass through, so as to realize the detachable installation of the control gap pad and the insert blocks. At the same time, the insert block located below the mounting hole is provided with a groove for assisting the mating of the process insert block. The upper part of the control gap pad is provided with a straight handle for moving the process insert block.
[0005] In this invention, the insert is a U-shaped insert.
[0006] In this invention, the countersunk through holes are symmetrically arranged on the upper part of the U-shaped insert.
[0007] In this invention, the bottom of the U-shaped insert has an arc-shaped structure to protect the mating surfaces.
[0008] In this invention, the control gap pad is provided with an internal threaded hole for tightening countersunk screws.
[0009] In this invention, the outer surface of the control gap pad and the longitudinal surface of the insert are located on the same horizontal plane to prevent scratches during the mating process.
[0010] In this invention, the control gap pad and the insert are manufactured separately. After the shape is machined by a milling machine, the thickness of the insert and the control gap pad is machined by a grinding machine. The thickness accuracy is easy to control, which effectively ensures the accuracy of the thickness of the insert and the control gap pad, thus ensuring the accuracy of the mating gap. At the same time, the connection, fixation and disassembly are achieved by countersunk screws, so as to realize detachable installation and convenient interchangeability.
[0011] Beneficial effects: The insert block and control gap pad in this utility model are simple to manufacture individually. The thickness of the insert block and control gap pad is processed by a grinding machine, and the precision is easy to control. This makes the insert block of this process detachable and interchangeable. At the same time, according to different mating gaps, only the corresponding control gap pad needs to be prepared, which effectively saves manufacturing costs and improves production efficiency while ensuring tooling quality. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of a preferred embodiment of the present invention.
[0013] Figure 2 This is a front view of a preferred embodiment of the present invention.
[0014] Figure 3 This is a side view of a preferred embodiment of the present invention.
[0015] Figure 4 This is a diagram showing the combined use state of a preferred embodiment of the present invention. Detailed Implementation
[0016] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0017] See Figures 1-3 A process insert for mating includes a U-shaped insert 1, a control gap pad 2, a straight handle 3, and a countersunk screw 4. The control gap pad 2 is detachably fitted between two U-shaped inserts 1, and a countersunk through hole is provided on the upper part of the two U-shaped inserts 1 for the countersunk screw 4 to pass through. The control gap pad 2 and the U-shaped insert 1 are detachably installed by the countersunk screw 4. At the same time, a groove is provided on the U-shaped insert 1 located below the mounting hole to assist the mating of the process insert. The straight handle 3 is provided on the upper part of the control gap pad 2 for moving the process insert.
[0018] In this embodiment, the countersunk through holes are symmetrically arranged on the upper part of the U-shaped insert 1.
[0019] In this embodiment, the bottom of the U-shaped insert 1 has an arc-shaped structure to protect the mating surfaces.
[0020] In this embodiment, the control gap pad 2 is provided with an internal threaded hole for tightening the countersunk screw 4.
[0021] In this embodiment, the outer surface B of the control gap pad 2 and the longitudinal surface C of the U-shaped insert 1 are located on the same horizontal plane to prevent scratches during the mating process.
[0022] In this embodiment, the control gap pad 2 and the U-shaped insert 1 are manufactured separately. After the outer shape is machined by a milling machine, the thickness of the U-shaped insert 1 and the control gap pad 2 is machined by a grinding machine. The thickness accuracy is easily controlled, effectively ensuring the accuracy of the thickness of the U-shaped insert 1 and the control gap pad 2, thus guaranteeing the accuracy of the mating gap. Simultaneously, they are connected and fixed by countersunk screws for easy disassembly and interchangeability. Changing the thickness of the control gap pad 2 alters the mating gap of the process insert, preventing deformation of the groove due to processing stress, which would affect the insert accuracy. It is suitable for mating with gaps of different specifications and can be reused. The usage state of this process insert A is as follows... Figure 4 As shown in the image.
[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A process insert for use with other components, comprising the insert, a clearance control pad, a straight handle, and a countersunk screw, characterized in that, The control gap pad is detachably fitted between the two insert blocks, and the upper part of the two insert blocks is provided with countersunk through holes for countersunk screws to pass through so as to realize the detachable installation of the control gap pad and the insert blocks. At the same time, the insert block located below the mounting hole is provided with a groove for assisting the alignment of the insert blocks in this process; the upper part of the control gap pad is provided with a straight handle for moving the insert blocks in this process.
2. The process insert block for use according to claim 1, characterized in that, The insert is a U-shaped insert.
3. A process insert for use according to claim 2, characterized in that, The countersunk holes are symmetrically arranged on the upper part of the U-shaped insert.
4. A process insert for use according to claim 2, characterized in that, The bottom of the U-shaped insert has an arc-shaped structure.
5. A process insert for use according to claim 1, characterized in that, The control gap pad is provided with an internal threaded hole for tightening countersunk screws.
6. A process insert for use according to claim 1, characterized in that, The outer surface of the control gap pad and the longitudinal surface of the insert are located on the same horizontal plane.