Three-piece shaped surface split insert assembly

Abstract

This utility model relates to the field of insert assembly technology, and discloses a three-lobed irregular curved surface splicing insert assembly, comprising: a rod-shaped main body, one end of which has a connecting end with a protrusion, and the other end of which has an assembly end with a fitting structure. The assembly end has a first groove and a fourth groove on its end face, and a protruding post on its side wall. The end face of the protruding post has a first convex surface and a second convex surface; a sleeve, one end of which has a groove and a first protrusion on its inner wall; and a columnar insert, one end of which has a second groove and a third groove. The beneficial effect of adopting the above technical solution is that by the cooperation of the protruding post of the rod-shaped main body with the groove of the sleeve, the engagement of the first protrusion with the first groove, and the cooperation of the second and third grooves of the columnar insert with the first and second convex surfaces, the precise splicing of the three components is achieved, improving the assembly stability of the insert assembly.

Description

Technical Field

[0001] This utility model relates to the field of insert assembly technology, specifically to a three-lobed irregular curved surface splicing insert assembly. Background Technology

[0002] In mold manufacturing, precision machinery assembly, and other fields, insert assemblies serve as core assembly components, and their assembly accuracy and connection stability directly affect the operational accuracy and service life of the entire equipment or mold. Among them, multi-lobed composite inserts are widely used in the processing and assembly of irregularly shaped workpieces due to their advantages of easy disassembly and adaptability to complex cavities or structures.

[0003] Existing multi-part insert assemblies, especially those involving irregular curved surfaces, typically employ simple pin positioning, threaded connections, or single slot-protrusion mating methods to assemble the components. For example, some insert assemblies achieve sliding assembly by creating straight grooves in the main body and engaging protrusions on the inserts. However, such structures only provide positioning in a single direction and lack effective limiting mechanisms for fitting irregular curved surfaces. This leads to easy misalignment during assembly, making it difficult to ensure precise alignment of the components and consequently affecting the overall assembly accuracy of the insert assembly.

[0004] Meanwhile, the existing connection structures of insert assemblies are mostly single-point or few-point mating, such as fixing by only a single protrusion engaging with the groove, resulting in poor connection stability after assembly. Under external force or after long-term use, the components are prone to relative loosening, which not only reduces the operational stability of the equipment, but may also cause damage to the insert structure due to local stress concentration, shortening its service life. Utility Model Content

[0005] The purpose of this invention is to provide a three-lobed irregular curved surface splicing insert assembly to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a three-lobed irregular curved surface splicing insert assembly, comprising: A rod-shaped main body, one end of which is provided with a connecting end with a protrusion, and the other end is provided with an assembly end with a fitting structure. The end face of the assembly end is provided with a first groove and a fourth groove, and the side wall of the assembly end is provided with a protruding post. The end face of the protruding post is provided with a first convex surface and a second convex surface. A sleeve component, wherein a groove is provided on the inner wall of one end of the sleeve component, and a first protrusion is provided on the inner wall of the sleeve component; A columnar insert, wherein one end of the columnar insert is provided with a second groove and a third groove; The sleeve is assembled to the assembly end of the rod-shaped body through the engagement of the groove and the protrusion, and the snap-fit ​​of the first protrusion and the first groove; the columnar insert engages with the first convex surface and the second convex surface through the second groove and the third groove, respectively.

[0007] The beneficial effects of adopting the above technical solution are: by the groove cooperation between the protrusion of the rod-shaped main body and the sleeve, the first protrusion and the first groove, combined with the cooperation between the second and third grooves of the columnar insert and the first and second convex surfaces, the precise assembly of the three parts is achieved, which improves the assembly stability of the insert assembly.

[0008] As a further improvement of this utility model, the first convex surface and the second convex surface are irregular curved surfaces, and the inner wall curved surfaces of the second groove and the third groove are completely in contact with the curved surfaces of the first convex surface and the second convex surface.

[0009] The beneficial effects of adopting the above technical solution are: the first convex surface, the second convex surface and the curved surfaces of the second groove and the third groove are completely fitted, which increases the contact area between the columnar insert and the rod-shaped body, enhances the connection strength between the two, and avoids local stress concentration.

[0010] As a further improvement of this utility model, the groove of the sleeve extends axially along its inner wall, and the length of the groove is less than the axial length of the protrusion.

[0011] The beneficial effects of adopting the above technical solution are: the groove length is less than the axial length of the protrusion, so that the protrusion can retain some extension allowance in the groove, which not only ensures the assembly space of the sleeve part, but also allows it to be assembled with the columnar insert.

[0012] As a further improvement of this utility model, at least two first protrusions are distributed circumferentially along the inner wall of the sleeve, and each first protrusion corresponds to one first groove.

[0013] The beneficial effects of adopting the above technical solution are: the cooperation between at least two first protrusions and the corresponding first groove makes the assembly force of the sleeve and the rod-shaped body more uniform, improves the circumferential positioning accuracy of the sleeve, and reduces the risk of loosening after assembly.

[0014] As a further improvement of this utility model, the groove edges of the second and third grooves of the columnar insert are chamfered, and the edges of the first and second convex surfaces are rounded to match the chamfers.

[0015] The beneficial effects of adopting the above technical solution are: the chamfers of the openings of the second and third grooves are adapted to the rounded corners of the edges of the first and second convex surfaces, which can guide the columnar insert to quickly align with the assembly end of the rod-shaped body, improving assembly efficiency and avoiding damage to the structural edges during assembly.

[0016] As a further improvement of this utility model, the outer wall of the sleeve is provided with anti-slip ridges, which extend along the axial direction of the sleeve.

[0017] The beneficial effects of adopting the above technical solution are: the axial anti-slip ridges on the outer wall of the sleeve increase the hand friction during operation, making it easier to slide and adjust the sleeve, and improving the convenience of assembly and disassembly.

[0018] As a further improvement of this utility model, the length of the sleeve is not less than two-thirds of the length of the rod-shaped main body assembly end.

[0019] The beneficial effects of adopting the above technical solution are: the length of the sleeve is not less than two-thirds of the length of the assembly end of the rod-shaped body, which can form a large range of wrapping around the assembly end of the rod-shaped body, enhance the connection stability between the rod-shaped body and the sleeve, and reduce the risk of structural deformation at the assembly end. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0021] Figure 1 This is a schematic diagram of the overall structure of the three-lobed irregular curved surface splicing inlay assembly of this utility model; Figure 2 This is a side view of the three-lobed irregular curved surface splicing inlay assembly of this utility model; Figure 3 This is a schematic diagram of the rod-shaped main structure of the three-lobed irregular curved surface splicing insert assembly of this utility model; Figure 4 This is a schematic diagram of the sleeve structure of the three-lobed irregular curved surface splicing insert assembly of this utility model; Figure 5 This is a schematic diagram of the columnar insert structure of the three-lobed irregular curved surface splicing insert assembly of this utility model; Figure 6 This is an exploded structural diagram of the sleeve, columnar insert, and the space between columnar inserts in the three-lobed irregular curved surface splicing and inlay assembly of this utility model. Figure 7 This is a schematic diagram of the planar structure of the three-lobed irregular curved surface splicing inlay assembly of this utility model; Figure 8 This utility model is a three-lobed irregular curved surface splicing inlay assembly. Figure 7 Schematic diagram of the sectional structure of the middle AA section; Figure 9 This utility model is a three-lobed irregular curved surface splicing inlay assembly. Figure 7 Schematic diagram of the cross-sectional structure of the middle BB.

[0022] In the figure: 1. Rod-shaped main body; 11. Connecting end; 12. First groove; 13. First convex surface; 14. Second convex surface; 15. Fourth groove; 16. Protruding column; 2. Sleeve; 21. Groove; 22. First protrusion; 3. Columnar insert; 31. Second groove; 32. Third groove. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-9 This utility model provides a three-lobed irregular curved surface splicing inlay assembly, including: The rod-shaped body 1 has a connecting end 11 with a protrusion at one end and an assembly end with a fitting structure at the other end. The end face of the assembly end is provided with a first groove 12 and a fourth groove 15, and the side wall of the assembly end is provided with a protruding post 16. The end face of the protruding post 16 is provided with a first convex surface 13 and a second convex surface 14. Sleeve 2, one end of the inner wall of sleeve 2 is provided with a groove 21, and the inner wall of sleeve 2 is provided with a first protrusion 22; The columnar insert 3 has a second groove 31 and a third groove 32 at one end; Among them, the sleeve 2 is assembled on the assembly end of the rod-shaped body 1 through the cooperation of the groove 21 and the protrusion 16, and the snap-fit ​​of the first protrusion 22 and the first groove 12; the column-shaped insert 3 is cooperated with the first convex surface 13 and the second convex surface 14 through the second groove 31 and the third groove 32 respectively.

[0025] The beneficial effects of adopting the above technical solution are: by the cooperation of the protrusion 16 of the rod-shaped main body 1 with the groove 21 of the sleeve part 2, and the engagement of the first protrusion 22 with the first groove 12, combined with the cooperation of the second groove 31 and the third groove 32 of the columnar insert 3 with the first convex surface 13 and the second convex surface 14, the precise assembly of the three parts is achieved, and the assembly stability of the insert assembly is improved.

[0026] The first convex surface 13 and the second convex surface 14 are irregular curved surfaces, and the inner wall curved surfaces of the second groove 31 and the third groove 32 are completely in contact with the curved surfaces of the first convex surface 13 and the second convex surface 14.

[0027] The beneficial effects of adopting the above technical solution are: the curved surfaces of the first convex surface 13, the second convex surface 14 and the second groove 31 and the third groove 32 are completely fitted, which increases the contact area between the columnar insert 3 and the rod-shaped body 1, enhances the connection strength between the two, and avoids local stress concentration.

[0028] The groove 21 of the sleeve 2 extends axially along its inner wall, and the length of the groove 21 is less than the axial length of the protrusion 16.

[0029] The beneficial effects of adopting the above technical solution are: the length of the groove 21 is less than the axial length of the protrusion 16, so that the protrusion 16 can retain some extension allowance in the groove 21, which not only ensures the assembly space of the sleeve 2, but also allows it to be assembled with the columnar insert 3.

[0030] At least two first protrusions 22 are distributed circumferentially along the inner wall of the sleeve 2, and each first protrusion 22 corresponds to a first groove 12.

[0031] The beneficial effects of adopting the above technical solution are: the cooperation between at least two first protrusions 22 and the corresponding first groove 12 makes the assembly force of the sleeve 2 and the rod-shaped body 1 more uniform, improves the circumferential positioning accuracy of the sleeve 2, and reduces the risk of loosening after assembly.

[0032] The groove edges of the second groove 31 and the third groove 32 of the columnar insert 3 are chamfered, and the edges of the first convex surface 13 and the second convex surface 14 are rounded to match the chamfer.

[0033] The beneficial effects of adopting the above technical solution are: the chamfers of the openings of the second groove 31 and the third groove 32 are adapted to the rounded corners of the edges of the first convex surface 13 and the second convex surface 14, which can guide the columnar insert 3 to quickly align with the assembly end of the rod-shaped body 1, thereby improving the assembly efficiency and avoiding damage to the structural edges during the assembly process.

[0034] The outer wall of the sleeve 2 is provided with anti-slip ridges, which extend along the axial direction of the sleeve 2.

[0035] The beneficial effects of adopting the above technical solution are: the axial anti-slip ridges on the outer wall of the sleeve 2 increase the hand friction during operation, making it easier to slide and adjust the sleeve 2, and improving the convenience of assembly and disassembly.

[0036] In this embodiment, the length of the sleeve 2 is not less than two-thirds of the length of the assembly end of the rod-shaped body 1.

[0037] The beneficial effects of adopting the above technical solution are: the length of the sleeve 2 is not less than two-thirds of the length of the assembly end of the rod-shaped body 1, which can form a large range of wrapping around the assembly end of the rod-shaped body 1, enhance the connection stability between the rod-shaped body 1 and the sleeve 2, and reduce the risk of structural deformation at the assembly end.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A three-lobed irregular curved surface splicing inlay assembly, characterized in that, include: A rod-shaped main body, one end of which is provided with a connecting end with a protrusion, and the other end is provided with an assembly end with a fitting structure. The end face of the assembly end is provided with a first groove and a fourth groove, and the side wall of the assembly end is provided with a protruding post. The end face of the protruding post is provided with a first convex surface and a second convex surface. A sleeve component, wherein a groove is provided on the inner wall of one end of the sleeve component, and a first protrusion is provided on the inner wall of the sleeve component; A columnar insert, wherein one end of the columnar insert is provided with a second groove and a third groove; The sleeve is assembled to the assembly end of the rod-shaped body through the engagement of the groove and the protrusion, and the snap-fit ​​of the first protrusion and the first groove; the columnar insert engages with the first convex surface and the second convex surface through the second groove and the third groove, respectively.

2. The three-lobed irregular curved surface splicing insert assembly according to claim 1, characterized in that, The first convex surface and the second convex surface are irregular curved surfaces, and the inner wall curved surfaces of the second groove and the third groove are completely in contact with the curved surfaces of the first convex surface and the second convex surface.

3. The three-lobed irregular curved surface splicing insert assembly according to claim 1, characterized in that, The groove of the sleeve extends axially along its inner wall, and the length of the groove is less than the axial length of the protrusion.

4. The three-lobed irregular curved surface splicing insert assembly according to claim 1, characterized in that, The sleeve has at least two first protrusions distributed circumferentially along its inner wall, and each first protrusion corresponds to one first groove.

5. The three-lobed irregular curved surface splicing insert assembly according to claim 1, characterized in that, The second and third grooves of the columnar insert have chamfered edges, and the edges of the first and second convex surfaces have rounded corners that match the chamfers.

6. The three-lobed irregular curved surface splicing insert assembly according to claim 1, characterized in that, The outer wall of the sleeve is provided with anti-slip ridges, which extend along the axial direction of the sleeve.

7. The three-lobed irregular curved surface splicing insert assembly according to claim 1, characterized in that, The length of the sleeve is not less than two-thirds of the length of the rod-shaped main body assembly end.

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