Cylinder multi-surface positioning welding tool

Abstract

This utility model discloses a cylindrical multi-faceted positioning welding fixture, including a positioning base plate that supports the workpiece to be processed. The vertical projection of the workpiece to be processed is located inside the positioning base plate. Four flange positioning seats are installed on the outer edge of the positioning base plate. Each flange positioning seat corresponds to the mounting seat position on the workpiece to be processed. A vertical guide post is installed on the positioning base plate. The guide post passes through the positioning holes on the same vertical surface of the two positioning round flanges on the workpiece to be processed, forming a mechanical constraint in the vertical direction, reducing the misalignment rate, and solving the assembly deviation problem caused by processing errors in the original process.

Description

Technical Field

[0001] This utility model relates to the technical field of processing cylindrical components in agricultural dust collectors, specifically to a cylindrical multi-faceted positioning welding fixture. Background Technology

[0002] like Figure 1 As shown, the ductwork of existing agricultural dust collectors is mostly cylindrical, including the workpiece 1, mounting base 2, and positioning flange 3. After processing, the positioning holes 31 of the positioning flange 3 are prone to misalignment with the vertical plane; it is difficult to ensure the working position of the mounting base 1 during installation, that is, it is impossible to ensure that the flange installation centerline and the long side centerline of the positioning flange form a 45° angle. At the same time, since the ductwork of this agricultural dust collector is a non-standard part, there are no special manufacturing tools.

[0003] To address the aforementioned issues, we provide a cylindrical multi-faceted positioning welding fixture. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides a cylindrical multi-faceted positioning welding fixture. Through the coordinated structural design of the integrated positioning base plate, flange positioning seat and guide column, it eliminates positioning hole misalignment and ensures coaxial accuracy. At the same time, it locks the 45° mounting seat angle to eliminate human error, accurately adapts to the air duct of the grain dryer, and improves the versatility of air duct production for agricultural dust collectors.

[0005] To achieve the above objectives, this utility model employs a cylindrical multi-faceted positioning welding fixture, including a positioning base plate that supports the workpiece to be processed. The vertical projection of the workpiece to be processed is located inside the positioning base plate. Four flange positioning seats are installed on the outer edge of the positioning base plate, and each flange positioning seat corresponds to the mounting seat position on the workpiece to be processed. A vertical guide post is installed on the positioning base plate. The guide post passes through the positioning holes on the same vertical surface of the two positioning circular flanges on the workpiece to be processed, forming a mechanical constraint in the vertical direction, reducing the misalignment rate, and solving the assembly deviation problem caused by processing errors in the original process.

[0006] As a further optimization of the above solution, the angle between the centerline of the flange positioning seat and the centerline of the long side of the positioning base plate is 45°. The 45° angle is directly limited by the mechanical structure to eliminate manual calibration error.

[0007] As a further optimization of the above solution, the flange positioning seat includes a positioning base adapted to the width of the mounting seat and lateral limiting baffles installed on both walls of the positioning base. The lateral limiting baffles are used to limit the two sides of the mounting seat and clamp the mounting seat from both sides to prevent radial displacement caused by welding heat deformation.

[0008] As a further optimization of the above solution, a receiving boss is provided in the middle of the lateral limiting baffle to receive the mounting seat. The thickness of the receiving boss is equal to the thickness of the positioning round flange on the workpiece. When the positioning welding fixture is aligned with the workpiece, the lower positioning round flange of the workpiece is fitted into the inner side of the receiving boss. The top surface of the receiving boss receives the mounting seat, and a through-weld hole corresponding to the through hole position on the welding fixture is opened on the receiving boss. By using the thickness of the receiving boss to position the round flange, the positioning round flange and the receiving boss are accurately fitted together, forming a height limit in the Z direction, avoiding the sinking or warping of the workpiece during welding.

[0009] As a further optimization of the above solution, the lower surface of the positioning base plate is provided with a support pad, the guide post is threadedly engaged with the positioning base plate, and the positioning base plate is provided with a threaded groove that mates with the guide post. The guide post is fixedly connected to the support pad, and the support pad and the positioning base plate are separately engaged. The design of the guide post structure allows the operator to fine-tune the penetration depth. The separate design of the support pad supports the replacement of the overall height, and the guide post can be rotated more easily by rotating the support pad, making it easier for the operator to adjust the position of the guide post.

[0010] This utility model provides a cylindrical multi-faceted positioning and welding fixture, which has the following beneficial effects: This utility model discloses a cylindrical multi-faceted positioning welding fixture. Through the design of guide posts penetrating the vertical positioning holes on the two positioning flanges of the workpiece, a rigid constraint is formed in the vertical direction, effectively solving the problem of misalignment between the positioning holes and the vertical plane. The pre-set structure, where the centerline of the flange positioning seat forms a 45° angle with the centerline of the long side of the positioning base plate, directly fixes the angle of the mounting seat, eliminating manual calibration errors. The lateral limiting baffles synchronously clamp both sides of the mounting seat, effectively suppressing radial displacement caused by welding thermal deformation and ensuring the relative positional accuracy between the mounting seat and the positioning flanges.

[0011] This utility model discloses a cylindrical multi-faceted positioning welding fixture. The design of the receiving boss having a thickness equal to the thickness of the positioning round flange allows the positioning round flange at the bottom of the workpiece to be processed to be embedded inside the receiving boss, forming a Z-axis height limit and preventing the workpiece from sinking or warping during the welding process.

[0012] This utility model discloses a cylindrical multi-faceted positioning welding fixture. The coordinated design of the split support pads and threaded guide columns enables fine adjustment of the penetration depth, adapting to non-standard air ducts of different specifications.

[0013] Referring to the following description and accompanying drawings, specific embodiments of the present invention are disclosed in detail, indicating how the principles of the present invention can be adopted. It should be understood that the embodiments of the present invention are not limited in scope as a result, and the embodiments of the present invention include many changes, modifications and equivalents. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the workpiece to be processed in this utility model; Figure 2 A schematic diagram of a cylindrical multi-faceted positioning welding fixture; Figure 3 In this utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This is a schematic diagram of the positioning base plate in this utility model; Figure 5 This is a schematic diagram of the supporting foot structure in this utility model.

[0015] In the diagram: 1. Workpiece to be processed; 2. Mounting seat; 3. Positioning round flange; 31. Positioning hole; 4. Positioning base plate; 41. Threaded groove; 5. Flange positioning seat; 51. Positioning base; 52. Lateral limiting baffle; 53. Receiving boss; 531. Through welding hole; 6. Guide column; 7. Support pad. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit its scope.

[0017] It should be noted that when an element is referred to as "set on" or "provided with" another element, it can be directly on the other element or there may be an intermediate element. When an element is referred to as "connected to" or "connected to" another element, it can be directly connected to the other element or there may be an intermediate element at the same time. "Fixed connection" means fixed connection. There are many ways of fixed connection, which are not within the scope of protection of this document. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terms used in the description herein are for the purpose of describing particular embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Please refer to the instruction manual appendix. Figure 2-5This utility model provides a specific embodiment of a cylindrical multi-faceted positioning welding fixture. In this embodiment, the positioning welding fixture includes a positioning base plate 4 that supports the workpiece 1 to be processed. The vertical projection of the workpiece 1 to be processed is located inside the positioning base plate 4. Four flange positioning seats 5 are installed on the outer edge of the positioning base plate 4, and each flange positioning seat 5 corresponds to the position of the mounting seat 2 of the workpiece 1 to be processed. The positioning base plate 4 is provided with a vertical guide post 6, which penetrates the positioning hole 31 on the same vertical surface of the two positioning round flanges 3 of the workpiece 1 to be processed, forming a mechanical constraint to reduce the misalignment rate and solve the assembly deviation problem caused by processing error.

[0019] Furthermore, the centerline of the flange positioning seat forms a 45° angle with the centerline of the long side of the positioning base plate 4. This 45° angle is directly defined by a mechanical structure, eliminating errors caused by manual calibration. The flange positioning seat 5 includes a positioning base 51 adapted to the width of the mounting seat 2 and lateral limiting baffles 52 installed on both walls of the positioning base 51. These lateral limiting baffles 52 limit the two sides of the mounting seat 2, clamping the mounting seat 2 from both sides to prevent radial displacement caused by welding heat deformation.

[0020] Furthermore, the lateral limiting baffle 52 is provided with a receiving boss 53 in the middle to receive the mounting seat 2. The thickness of the receiving boss 53 is equal to the thickness of the positioning round flange 3 of the workpiece 1. When the positioning welding fixture is aligned with the workpiece 1, the lower positioning round flange 3 of the workpiece 1 is embedded in the inner side of the receiving boss 53, and the top surface of the receiving boss 53 receives the mounting seat 2. The receiving boss 53 has a through-welding hole 531 corresponding to the through-hole position of the welding fixture. The thickness of the receiving boss 53 is equal to the thickness of the positioning round flange 3 on the workpiece 1, so that the positioning round flange 3 and the receiving boss 53 are accurately fitted together, forming a Z-direction height limit, and preventing the workpiece 1 from sinking or warping during the welding process.

[0021] Furthermore, the lower surface of the positioning base plate 4 is provided with a support pad 7; the guide post 6 is threadedly engaged with the positioning base plate 4, and the positioning base plate 4 has a threaded groove 41 that engages with the guide post 6; the guide post 6 is fixedly connected to the support pad 7, and the support pad 7 and the positioning base plate 4 are separately engaged; the guide post 6 can be finely adjusted in penetration depth, and the separate design of the support pad 7 enables the overall height to be changed and the position of the guide post 6 to be adjusted. Specifically, by rotating the support pad 7, the guide post 6 is rotated in conjunction with the rotation, which makes it easier for the staff to adjust the position of the guide post 6.

[0022] This embodiment provides a cylindrical multi-faceted positioning and welding fixture, the working principle of which is as follows: Place the workpiece 1 on the positioning base plate 4, ensuring its vertical projection is inside the positioning base plate 4. Align the four mounting seats 2 of the workpiece 1 with the four flange positioning seats 5 on the outer edge of the positioning base plate 4, and achieve rough positioning of the flanges through the preset positions of the flange positioning seats 5. At this time, the lateral limiting baffle 52 clamps the mounting seats 2 from both sides, and the vertical guide post 6 penetrates the positioning hole 31 on the same vertical surface on the two positioning round flanges 3 of the workpiece 1, forming a vertical constraint and forcing the two positioning round flanges 3 to remain coaxial. The lower positioning round flange 3 of the workpiece 1 is embedded inside the middle receiving boss 53 of the lateral limiting baffle 52. The thickness of the receiving boss 53 is equal to the thickness of the positioning round flange 3, achieving height limitation in the Z direction and ensuring the machining accuracy of the workpiece 1.

[0023] In summary, this utility model, through the integrated positioning base plate 4, flange positioning seat 5 and guide column 6 collaborative structural design, eliminates the misalignment of positioning hole 31, ensures coaxial accuracy, and locks the 45° angle of mounting seat 2 to eliminate human error, accurately adapts to the air duct of grain dryer, and improves the versatility of air duct production for grain dryer.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cylindrical multi-faceted tack welding fixture, characterized by, The positioning base plate (4) is used to support the workpiece (1). The vertical projection of the workpiece (1) is located inside the positioning base plate (4). Four flange positioning seats (5) are installed on the outer edge of the positioning base plate (4). Each flange positioning seat (5) corresponds to the position of the mounting seat (2) on the workpiece (1). The positioning base plate (4) is equipped with a vertical guide post (6). The guide post (6) passes through the positioning hole (31) on the same vertical plane of the two positioning round flanges (3) of the workpiece (1).

2. The cylindrical multi-sided tack welding fixture of claim 1, wherein: The angle between the centerline of the flange positioning seat (5) and the centerline of the long side of the positioning base plate (4) is 45°.

3. A cylindrical multi-sided tack welding fixture as claimed in claim 1 or claim 2, wherein: The flange positioning seat (5) includes a positioning base (51) adapted to the width of the mounting seat (2) and lateral limiting baffles (52) installed on both sides of the positioning base (51), which are used to limit the two sides of the mounting seat (2).

4. The cylindrical multi-sided tack welding fixture of claim 3, wherein: The lateral limiting baffle (52) is provided with a receiving boss (53) in the middle to receive the mounting seat (2), and the thickness of the receiving boss (53) is equal to the thickness of the positioning round flange (3) on the workpiece (1).

5. The cylindrical multi-sided tack welding fixture of claim 4, wherein: When the positioning welding fixture is aligned with the workpiece (1), the lower positioning round flange (3) of the workpiece (1) is embedded in the inner side of the receiving boss (53), and the top surface of the receiving boss (53) receives the mounting seat (2).

6. The cylindrical multi-sided tack welding fixture of claim 5, wherein: The receiving boss (53) has a through-weld hole (531) corresponding to the through-hole position on the welding fixture.

7. The cylindrical multi-sided tack welding fixture of claim 5, wherein: The lower surface of the positioning base plate (4) is provided with support pads (7).

8. The cylindrical multi-sided tack welding fixture of claim 7, wherein: The guide post (6) and the positioning base plate (4) are threaded together, and the positioning base plate (4) is provided with a threaded groove (41) that is in mate with the guide post (6).

9. A cylindrical multi-faceted positioning welding fixture according to claim 8, characterized in that: The guide post (6) is fixedly connected to the support foot (7), and the support foot (7) and the positioning base plate (4) are separate parts.

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