Fixture for controlling welding deformation of shell type structural member
By designing a fixture for shell-shaped structural components and utilizing the cooperation of a fixed base and a core mold structure for positioning, the problem of welding deformation in shell-shaped structural components was solved, achieving high-precision and high-efficiency welding results.
Patent Information
- Application Number
- CN202423308593.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Shell-shaped structural components are prone to deformation during welding, resulting in low welding accuracy and efficiency. Existing manual splicing and fixing block methods cannot guarantee welding quality.
A fixture consisting of a fixed base and a core mold structure is used. By setting assembly grooves and positioning pins on the fixed base, and combining the clearance fit between the connecting through holes and connecting studs of the core mold structure, the parts to be welded are positioned and fixed, thus avoiding deformation during the welding process.
It effectively ensures the dimensional and positional tolerances of welded parts, improves welding accuracy, reduces correction and adjustment, and enhances welding efficiency and quality.
Smart Images
Figure CN223932938U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of welding technology, for example to a fixture for controlling welding deformation of shell-shaped structural members. Background Technology
[0002] The shell-shaped structural components are welded from five thin-plate parts made of 30CrMnSiA material with a thickness of 1.5-2mm. Among them are two trumpet-shaped bending parts. Since 30CrMnSiA is a medium-carbon quenched and tempered steel with a high carbon content and many alloying elements, the steel has a high hardening tendency and a low Ms point. Martensite structure appears in the near-weld zone, which is prone to cracking. Furthermore, due to the thin-walled structure of this type of structural component, deformation is prone to occur during the welding process. The deformation of thin-plate welding is complex and multifaceted, which is a technical challenge in the manufacturing of thin-plate welding.
[0003] Currently, welding operations are mostly carried out manually, with fixed blocks used for assistance. Although the above methods can complete the welding, the welded workpiece is also prone to displacement, requiring repeated adjustments, making it difficult to guarantee welding accuracy, affecting welding quality, and is also time-consuming and labor-intensive, reducing welding efficiency.
[0004] Therefore, it is evident that improving welding quality and completing welding operations efficiently and quickly is a technical problem that urgently needs to be solved by those skilled in the art.
[0005] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content
[0006] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.
[0007] This disclosure provides a fixture for controlling the welding deformation of shell-shaped structural parts, which effectively ensures the dimensional and positional tolerances of the welded parts, has high welding accuracy, improves welding quality, and eliminates the need for repeated adjustments and corrections during the welding process, thus helping to complete the welding operation efficiently and quickly.
[0008] In some embodiments, a fixture for controlling welding deformation of a shell-shaped structural component includes: a fixed base and a mandrel structure. The fixed base has an upward-opening assembly groove, and a connecting stud is provided at the center of the groove. The fixed base also has a plurality of positioning pins evenly arranged around the periphery of the assembly groove. The mandrel structure has a connecting through hole, is disposed in the assembly groove, and the connecting stud passes through the connecting through hole, wherein the connecting through hole and the connecting stud are clearance-fitted.
[0009] Optionally, the fixed base has multiple threaded holes corresponding to the positioning pins, and the positioning pins are threaded into the threaded holes on the fixed base.
[0010] Optionally, the side of the locating pin located outside the threaded hole is a smooth surface.
[0011] Optionally, the core mold structure is provided with an operating handle.
[0012] Optionally, the operating handles are provided in pairs, and the pairs of operating handles are symmetrically arranged on both sides of the connecting hole.
[0013] Optionally, a fastening nut is provided on the connecting stud.
[0014] Optionally, the clearance fit between the connecting hole and the connecting stud is greater than or equal to 0.5 mm and less than or equal to 1 mm.
[0015] Optionally, the side of the mounting groove is an inclined surface, and the bottom of the side of the mounting groove is inclined towards its center.
[0016] Optionally, the fixed base is a rectangular structure, and the mounting groove in the upper center is a ring structure.
[0017] Optionally, the bottom of the connecting stud is welded into the mounting groove.
[0018] The fixture for controlling welding deformation of shell-shaped structural components provided in this disclosure can achieve the following technical effects:
[0019] The fixed base is fixed on the platform, and the cleaned and qualified parts to be welded are loaded in sequence. After leveling, the core mold structure is installed. The core mold structure is used to position and fix the parts to be welded, and the welding operation is started. This fixture can avoid changes in the size and shape of the parts to be welded during the welding operation, effectively ensuring the size and form and position tolerances of the welded parts, with high welding accuracy and improved welding quality. Moreover, there is no need for repeated adjustments and corrections during the welding operation, which helps to complete the welding operation efficiently and quickly.
[0020] The above general description and the description below are exemplary and illustrative only and are not intended to limit this application. Attached Figure Description
[0021] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations and drawings do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are shown as similar elements. The drawings are not to be scaled. And wherein:
[0022] Figure 1 This is a schematic diagram of a fixture for controlling welding deformation of shell-shaped structural components provided in an embodiment of this disclosure;
[0023] Figure 2 This is a schematic diagram of the operating handle structure provided in an embodiment of this disclosure;
[0024] Figure 3 This is a schematic diagram of the structure of the fastening nut provided in the embodiments of this disclosure;
[0025] Figure 4 This is a schematic diagram of another fixture for controlling welding deformation of shell-shaped structural components provided in an embodiment of this disclosure;
[0026] Figure 5 This is a schematic diagram of the structure of the fixed base provided in the embodiment of this disclosure;
[0027] Figure 6 This is a schematic diagram of the core mold structure provided in the embodiments of this disclosure.
[0028] Figure label:
[0029] 100. Fixed base; 101. Assembly groove; 102. Connecting stud; 103. Positioning pin; 200. Core mold structure; 201. Connecting through hole; 300. Operating handle; 400. Fastening nut. Detailed Implementation
[0030] To provide a more detailed understanding of the features and technical content of the embodiments of this disclosure, the implementation of the embodiments of this disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for illustrative purposes only and are not intended to limit the embodiments of this disclosure. In the following technical description, for ease of explanation, several details are used to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be simplified in their depiction to simplify the drawings.
[0031] The terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this disclosure are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of this disclosure described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.
[0032] In this disclosure, the terms "upper," "lower," "inner," "middle," "outer," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for better description of the embodiments of this disclosure and their implementations, and are not intended to limit the indicated devices, elements, or components to having a specific orientation, or to require them to be constructed and operated in a specific orientation. Furthermore, some of the aforementioned terms may be used to indicate other meanings besides orientation or positional relationship; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in the embodiments of this disclosure according to the specific circumstances.
[0033] Furthermore, the terms "set up," "connect," and "fix" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this disclosure according to the specific circumstances.
[0034] Unless otherwise stated, the term "multiple" means two or more.
[0035] In this embodiment of the disclosure, the character " / " indicates that the objects before and after it are in an "or" relationship. For example, A / B means: A or B.
[0036] The term "and / or" describes an association between objects, indicating that three relationships can exist. For example, A and / or B means: A or B, or A and B.
[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present disclosure can be combined with each other.
[0038] Combination Figure 1As shown in the figure, this disclosure provides a fixture for controlling the welding deformation of a shell-shaped structural component, comprising: a fixed base 100 and a core mold structure 200. The fixed base 100 has an upward-opening assembly groove 101, and a connecting stud 102 is provided at the center of the groove. The fixed base 100 also has a plurality of positioning posts 103 evenly arranged around the periphery of the assembly groove 101. The core mold structure 200 has a connecting through hole 201, and the core mold structure 200 is disposed in the assembly groove 101. The connecting stud 102 passes through the connecting through hole 201, wherein the connecting through hole 201 and the connecting stud 102 are clearance fit.
[0039] Using the fixture for controlling welding deformation of shell-shaped structural parts provided in this embodiment, the fixed base 100 is fixed on the platform, and the cleaned and qualified parts to be welded are loaded in sequence. After adjustment and leveling, the core mold structure 200 is loaded and the parts to be welded are positioned and fixed using the core mold structure 200. Welding operation is then started. This fixture can avoid changes in the size and shape of the parts to be welded during the welding operation, effectively ensuring the size and form and position tolerances of the welded parts, providing high welding accuracy, improving welding quality, and eliminating the need for repeated adjustments and corrections during the welding operation, which helps to complete the welding operation efficiently and quickly.
[0040] Optionally, the fixed base 100 has multiple threaded holes corresponding to the positioning pins 103, and the positioning pins 103 are threaded into the threaded holes on the fixed base 100. This makes the installation of the positioning pins 103 more flexible, facilitates quick installation and disassembly, and allows for adjustment of the number of positioning pins 103 used according to the fixing requirements of the welded parts, so as to better position and fix the welded parts.
[0041] Optionally, the side of the locating pin 103 outside the threaded hole is a smooth surface. This allows the welded parts to be smoothly connected to the locating pin 103, improving the ease of assembly, and also avoids damage to the welded parts due to friction between the locating pin 103 and the welded parts.
[0042] Optionally, the shell-shaped structural component to be welded has an opening corresponding to the positioning post 103. The opening of the shell-shaped structural component to be welded is fitted onto the positioning post 103, and the opening and the positioning post 103 are also clearance fit. In this way, after the shell-shaped structural component to be welded is assembled on the positioning post 103, the position of the shell-shaped structural component to be welded can be finely adjusted and fixed after adjustment, which helps to ensure the subsequent welding accuracy.
[0043] Optionally, the clearance fit dimension is greater than or equal to 0.2 mm and less than or equal to 0.3 mm. This ensures that the clearance fit dimension is within a reasonable range, allowing the shell-shaped structural component to be welded to be finely adjusted within a movement range of 0.2 mm to 0.3 mm.
[0044] Optionally, the height of the positioning post 103 is greater than or equal to the thickness of the shell-type structural flange, and less than or equal to twice the thickness of the shell-type structural flange. This ensures that the parts to be welded are securely fixed while reducing the impact of the positioning post 103 on the welding operation and preventing the positioning post 103 from obstructing the welding operation.
[0045] like Figure 2 As shown, optionally, the core mold structure 200 is provided with an operating handle 300. This makes it easier to move the core mold structure 200, saving time and effort and improving operational convenience.
[0046] Optionally, the operating handle 300 is formed by bending a rod into an open shape. This makes it easier to move the core mold structure 200 by holding the operating handle 300, enhancing the operating experience and preventing accidental drops, thus improving the safety of movement.
[0047] Optionally, the operating handles 300 are provided in pairs, and the pairs of operating handles 300 are symmetrically arranged on both sides of the connecting through hole 201. This allows the user to hold the operating handles 300 with both hands to move the core mold structure 200, further enhancing the stability and safety of movement. It also facilitates fine-tuning of the core mold structure 200 through the operating handles 300 after the core mold structure 200 is placed into the assembly groove 101.
[0048] Optionally, the operating handle 300 is welded to the core mold structure 200. This makes the installation of the operating handle 300 more secure, prevents the operating handle 300 from falling off, and enhances the safety of use.
[0049] Optionally, the height of the operating handle 300 is greater than or equal to the height of the shell-shaped structural component to be welded, and less than or equal to twice the height of the shell-shaped structural component to be welded. This facilitates the removal of the core mold structure 200 via the operating handle 300 after welding, avoiding situations where the shell-shaped structural component obstructs the user's grip on the operating handle 300.
[0050] like Figure 3-4 As shown, optionally, a fastening nut 400 is provided on the connecting stud 102. In this way, the fastening nut 400 presses the mandrel structure 200, making the placement of the mandrel structure 200 in the assembly groove 101 more stable, avoiding displacement or shaking that would affect the welding accuracy, and further ensuring the welding quality.
[0051] Optionally, the fastening nut 400 has a hexagonal end face slotted structure. This facilitates easy and quick tightening of the fastening nut 400, improving operational convenience.
[0052] Optionally, the maximum diameter of the fastening nut 400 is greater than or equal to three times the diameter of the connecting stud 102, and less than or equal to five times the diameter of the connecting stud 102. This increases the contact area between the fastening nut 400 and the mandrel structure 200, allowing for more stable and neat compression of the mandrel structure 200, and further enhancing the stability of the mandrel structure 200.
[0053] Optionally, the clearance fit between the connecting hole 201 and the connecting stud 102 is greater than or equal to 0.5 mm and less than or equal to 1 mm. This facilitates movement of the mandrel structure 200 after it is placed in the assembly groove 101, allowing for fine-tuning of the mandrel structure 200 to better position and fix the parts to be welded, thus ensuring subsequent welding accuracy.
[0054] like Figure 5-6 As shown, optionally, the side of the mounting groove 101 is an inclined surface, and the bottom of the side of the mounting groove 101 is inclined towards its center. In this way, after the welding part is placed, the core mold structure 200 can more stably position and fix it, greatly reducing the probability of the welding part moving or shaking, making the placement of the welding part more stable, and effectively ensuring the dimensional and positional tolerances of the welding part after welding.
[0055] Understandably, the inclination of the bottom of the side of the mounting groove 101 towards its center position means that the opening size of the mounting groove 101 is larger than the size of its bottom side.
[0056] Optionally, the depth of the mounting groove 101 is the same as the thickness of the core mold structure 200, and the side surface of the core mold structure 200 is also an inclined surface. The inclination method and inclination degree of the side surface of the core mold structure 200 are the same as those of the side surface of the mounting groove 101. In this way, the core mold structure 200 and the mounting groove 101 are adapted to each other, which not only facilitates the smooth placement of the core mold structure 200 into the mounting groove 101, but also better fixes the welded parts.
[0057] Optionally, the fixed base 100 has a rectangular structure, and the mounting groove 101 in the upper center is annular. In this way, the overall structure of the fixed base 100 is more regular and neat, which facilitates stable placement. The annular structure of the mounting groove 101 makes its inner surface smoother and eliminates sharp corners, so that the parts to be welded can be more stably positioned and fixed after being placed in it.
[0058] Optionally, the bottom of the connecting stud 102 is welded into the mounting groove 101. This makes the installation of the connecting stud 102 more secure, preventing it from falling off after movement, thereby providing better stable positioning and installation of the core mold structure 200.
[0059] In some embodiments, the connecting stud 102 is optionally detachably disposed within the mounting groove 101. Preferably, the connecting stud 102 is threadedly connected to the bottom of the mounting groove 101. This ensures connection stability while facilitating disassembly, maintenance, replacement, and storage.
[0060] The foregoing description and accompanying drawings fully illustrate embodiments of the present disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included or substituted for parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from its scope. The scope of the present disclosure is limited only by the appended claims.
Claims
1. A fixture for controlling welding deformation of shell-shaped structural components, characterized in that, include: A fixed base (100) has an upward-opening mounting groove (101) and a connecting stud (102) is provided at the center of the groove. The fixed base (100) also has a plurality of positioning pins (103) evenly arranged around the mounting groove (101). The core mold structure (200) has a connecting through hole (201) on it. The core mold structure (200) is set in the assembly groove (101), and the connecting stud (102) passes through the connecting through hole (201). The connecting through hole (201) and the connecting stud (102) are clearance fit.
2. The fixture for controlling welding deformation of shell-shaped structural components according to claim 1, characterized in that, The fixed base (100) has multiple threaded holes corresponding to the positioning pins (103), and the positioning pins (103) are threaded into the threaded holes on the fixed base (100).
3. The fixture for controlling welding deformation of shell-shaped structural components according to claim 2, characterized in that, The side of the positioning pin (103) located outside the threaded hole is a smooth surface.
4. The fixture for controlling welding deformation of shell-shaped structural components according to claim 1, characterized in that, An operating handle (300) is provided on the core mold structure (200).
5. The fixture for controlling welding deformation of shell-shaped structural components according to claim 4, characterized in that, The operating handles (300) are arranged in pairs, and the pairs of operating handles (300) are symmetrically arranged on both sides of the connecting hole (201).
6. The fixture for controlling welding deformation of shell-shaped structural members according to any one of claims 1 to 5, characterized in that, A fastening nut (400) is provided on the connecting stud (102).
7. The fixture for controlling welding deformation of shell-shaped structural members according to any one of claims 1 to 5, characterized in that, The clearance fit between the connecting hole (201) and the connecting stud (102) is greater than or equal to 0.5 mm and less than or equal to 1 mm.
8. The fixture for controlling welding deformation of shell-shaped structural members according to any one of claims 1 to 5, characterized in that, The side of the mounting groove (101) is an inclined surface, and the bottom of the side of the mounting groove (101) is inclined towards its center.
9. The fixture for controlling welding deformation of shell-shaped structural members according to any one of claims 1 to 5, characterized in that, The fixed base (100) has a rectangular structure, and the mounting groove (101) in the upper center is annular.
10. The fixture for controlling welding deformation of shell-shaped structural members according to any one of claims 1 to 5, characterized in that, The bottom of the connecting stud (102) is welded into the assembly groove (101).