Welded construction and method for welding such a welded construction with a construction
By setting a welding indicator arrangement structure on the welded components, the problem of improper welding area design is solved, the reliability and consistency of welding quality can be checked, and the correct coverage and position of the welding area can be ensured.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- PRIME LTD
- Filing Date
- 2022-09-07
- Publication Date
- 2026-06-16
Smart Images
Figure CN115770969B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a welded component, which is fixed to a component by means of at least one welded area. Background Technology
[0002] For example, in the manufacture of exhaust equipment for internal combustion engines, it is known that a housing for receiving sensors, which is considered a welded component, is fixed to an exhaust guide component, such as a pipe or housing, which is considered a component, by welding. This is done by fixing such a housing against the pipe or housing and by establishing a connection between the housing and the pipe or housing through a weld that typically surrounds the housing entirely. Summary of the Invention
[0003] The objective of this invention is to provide a weldable component and a method for welding such a weldable component to another component, thereby enabling, with simple measures, the correct design of the welded area for establishing a fixed connection between the weldable component and the component.
[0004] According to a first aspect of the invention, the task is solved by a welding member for welding a component by means of at least one welding area, wherein at least one welding indicator arrangement structure is provided on the welding member, wherein the at least one welding indicator arrangement structure has a minimum welding area indicator to be covered by the at least one welding area and a maximum welding area indicator not to be covered by the at least one welding area.
[0005] Such a welding indicator arrangement allows for the determination, after the welding area is formed, by visual inspection, and if necessary, by an optical inspection system, whether the welding area adequately surrounds (holds) the joined (welded) components. If the welding area covers the minimum welding area indicator when the maximum welding area indicator is not covered, this indicates that the welding area is correctly sized. If the welding area does not cover the minimum welding area indicator or also covers the maximum welding area indicator, this indicates that the welding area is sized too small or too large and further processing is necessary.
[0006] For good visual visibility, the minimum indicator of the welded area can have a contour variation of the welded component. The maximum indicator of the welded area can also have a contour variation of the welded component.
[0007] Such a contour variation can be provided, for example, by having at least one recessed area relative to the outer contour of the welded member.
[0008] For example, the minimum indicator of the welding area may have a transition from the outer contour to the recessed area, and the maximum indicator of the welding area may have a transition from the recessed area to the outer contour.
[0009] In one alternative design, at least one welding indicator arrangement may have two recessed areas spaced apart from each other with respect to the outer contour of the welded member.
[0010] In particular, in welded members that extend or extend along the longitudinal axis of the welded member, the outer contour may be the outer periphery of the welded member about the longitudinal axis of the welded member, and the at least one recessed area may have a groove-shaped recess that preferably completely surrounds the longitudinal axis of the welded member.
[0011] In one alternative design of the welded component, good visual perceptibility of the quality or size of the welded area can be achieved, namely, the weld indicator arrangement structure has a transition area between a first outer contour area and a second outer contour area offset from the first outer contour area, and the minimum weld area indicator has a transition from the first outer contour area to the transition area and the maximum weld area indicator has a transition from the transition area to the second outer contour area.
[0012] Therefore, the first outer contour region can be a first outer peripheral contour region of the welded member about the longitudinal axis of the welded member, and the second outer contour region can be a second outer peripheral contour region of the welded member about the longitudinal axis of the welded member. In the first outer contour region, the welded member has a different radial dimension about the longitudinal axis of the welded member than in the second outer contour region, thereby providing a transition from the radial dimension of the first outer contour region to the radial dimension of the second outer contour region in the transition region.
[0013] For example, the transition region can be formed in a substantially truncated cone shape.
[0014] To define the positioning of the welded component with respect to the component to be connected by welding, a support area is provided on the welded component for support on the component to be welded to, and the minimum indicator of the welded area has a smaller distance from the support area compared to the maximum indicator of the welded area.
[0015] Especially in applications involving the exhaust systems of internal combustion engines, the welded component can be a sleeve, preferably a sensor receiving sleeve, including a receiving opening, wherein a component support surface is provided on the sleeve for supporting the sleeve on the component to be welded to the sleeve. At least one welding indicator arrangement structure can then be provided on the outer peripheral region of the sleeve.
[0016] According to another aspect, the task given at the beginning is solved by a method for welding at least one welding component according to the invention to another component, the method having the following measures:
[0017] a) Positioning the at least one welded component relative to the component in a welding relative positioning.
[0018] b) This creates at least one welding area for fixing the welded component to the component, such that the minimum welding area indicator of the at least one welding indicator arrangement structure is covered by the at least one welding area and the maximum welding area indicator of the welding indicator arrangement structure is not covered by the welding area.
[0019] In this method, the positioning of the components to be welded to each other, i.e., the welded components and the defined components, can be achieved by positioning the welded components with the support area abutting the components in order to achieve the relative positioning of the weld in measure a).
[0020] When using a sleeve as a welding component, in measure a), the sleeve can be positioned against the component with the component support surface, and the at least one welding area generated in measure b) can have a weld that preferably completely surrounds the sleeve.
[0021] The present invention also relates to an exhaust device for an internal combustion engine, having at least one sleeve for providing a welded component according to the present invention, which is fixed to an exhaust guide member providing the component by means of the method according to the present invention. Attached Figure Description
[0022] The present invention will now be described in detail with reference to the accompanying drawings.
[0023] Figure 1 A longitudinal sectional view of the sleeve providing the welded component is shown;
[0024] Figure 2 Show Figure 1 Enlarged view of detail II in the image;
[0025] Figure 3 This illustrates a corresponding alternative design for providing a sleeve for welded components. Figure 1 Longitudinal sectional view;
[0026] Figure 4 Show Figure 3 A magnified view of detail IV in the image;
[0027] Figure 5 Figures a) and b) show enlarged views of different designs for the arrangement of the welding indicator;
[0028] Figure 6 A section of the venting equipment, including a sleeve for providing welded components, is shown. Detailed Implementation
[0029] Before proceeding with the detailed description of the invention, refer to Figure 6Explain the contents that may be used herein.
[0030] Figure 6 This diagram illustrates a section of an exhaust system, generally indicated by 10, representing an internal combustion engine, such as in a vehicle. The exhaust system 10 has an exhaust guide member 12, for example, formed as a pipe or housing, within which exhaust gas A flows, for example, from or to an exhaust treatment unit, such as a catalytic converter, particulate filter, or the like.
[0031] An opening 16 is formed in the wall 14 of the exhaust guide member 12, and a socket 18 for receiving a sensor is fixed to the wall 14 in the area of the opening. A receiving opening 20 is formed in the socket 18, through which the sensor to be fixed to the socket 18 can interact with the exhaust gas A.
[0032] In the context of this invention, a sleeve 18 of a welded component 22 constructed of metallic material extends longitudinally along the longitudinal axis L of the welded component or is substantially rotationally symmetrical with respect to the longitudinal axis of the welded component, and a support area 26 is provided by a component support surface 24. Using this support area, the sleeve 18, in the context of this invention, can be positioned in a welding-relative positioning on the exhaust guide member 12 of the component 28 constructed of metallic material. The sleeve 18 is fixed to the exhaust guide member 12 by a weld 32 that preferably completely surrounds the longitudinal axis L of the welded component and provides a welding area 30. Thus, a stable and also airtight connection is achieved between the sleeve 18 or the welded component 22 and the exhaust guide member 12 or the component 28.
[0033] The first design form of this type of connector 18 is in Figure 1 , 2 In 5a and in Figure 6 The left half is illustrated figuratively. In this design, a recessed region 36 is provided on the substantially (cylindrical) outer peripheral surface 34 of the sleeve 18, which provides or defines the outer contour 33, at an axial distance from the component support surface 24. This recess includes a groove-shaped recess 38 that preferably completely surrounds the longitudinal axis L of the welded component in the circumferential direction. The recessed region 36 or the groove-shaped recess 38 has a width B along the longitudinal axis L of the welded component and generally provides a welding indicator arrangement structure 40. The transition portion 42 from the groove-shaped recess 38 to the portion 44 of the outer peripheral surface 34 located between the groove-shaped recess 38 and the component support surface 24 forms the minimum welding area indicator 46 of the welding indicator arrangement structure 40, and the transition portion 48 from the groove-shaped recess 38 to the portion 50 of the outer peripheral surface 34 that is further away from the component support surface 24 forms the maximum welding area indicator 52.
[0034] The axial distance between the minimum indicator 46 and the maximum indicator 52 of the welding area corresponds to the width B of the groove-shaped recess 38. On the component 28 or the exhaust guide component 12, a welding-oriented... Figure 6 In the welding relative positioning shown, the minimum welding area indicator 46 has a distance d from the outer surface 54 of the component 28 or the exhaust guide component 12 for supporting the welding component 22 or the sleeve 18. The distance is smaller in width B than the distance D between the maximum welding area indicator 52 and the outer surface 54.
[0035] In the welding relative positioning of the sleeve 18 on the exhaust guide member 12, according to... Figure 6 After positioning, weld 32 is formed in the transition region from the outer peripheral surface 34 of sleeve 18 to the outer surface 54 of vent guide member 12, such that the weld extends along the longitudinal axis L of the welded member on the outer peripheral surface 34 to the region of the welding indicator arrangement structure 40. This means that weld 32 is formed such that it covers the region of the portion 44 of the outer peripheral surface 34 up to or beyond the minimum welding area indicator 46, so that the minimum welding area indicator 46, i.e., the transition portion 42 between the groove-shaped recess 38 and the portion 44 of the outer peripheral surface 34, is no longer visible. However, weld 32 does not extend so far that it covers the entire groove-shaped recess 38 up to the maximum welding area indicator 52, i.e., the transition portion 48 to the portion 50 of the outer peripheral surface 34 of sleeve 18.
[0036] In the extension of weld 32 along the longitudinal axis L of the welded member, the weld is correctly sized or positioned. This can be verified visually, for example, by means of a corresponding optical system. If it is found that the minimum indicator 46 of the weld area is covered by weld 32, while the maximum indicator 52 of the weld area is still visible, the manufactured joint is evaluated as correct. If it is found, for example, that weld 32 does not cover the minimum indicator 46 of the weld area, i.e., the minimum indicator is still visible in optical inspection, then weld 32 is evaluated as not correctly sized. If it is found that not only the minimum indicator 46 of the weld area but also the maximum indicator 52 of the weld area is covered and therefore cannot be identified in optical inspection, then weld 32 or weld area 30 is similarly evaluated as incorrect implementation. In cases where weld area 32 is evaluated as incorrect implementation, corrections can be performed in subsequent work steps to determine whether or to what extent corrections can or must be made to modify weld area 30 if necessary, or if not, the thus manufactured joint is rejected and not sent for further processing.
[0037] An alternative design in Figure 3 , 4 5b and Figure 6The image is illustrated in the right half of the diagram. In this design, the welding indicator arrangement 40 has a transition region 56 between portions 44 and 50 of the outer peripheral surface 34 of the sleeve 18. This transition region 56 may also have a width B along the longitudinal axis L of the welded member. The transition portion 56 has, for example, a frustoconical structure, such that the portion 44 of the outer peripheral surface 34 providing the first outer contour region 58 in this design has a smaller radial distance from the longitudinal axis L of the welded member than the portion 50 of the outer peripheral surface 34 providing the second outer contour region 60. The transition portion 62 from the portion 44 or the first outer contour region 58 to the transition region 56 provides the minimum welding area indicator 46 in this design. The transition portion 64 from the transition region 56 to the portion 50 of the outer peripheral surface 34 providing the second outer contour region 60 provides the maximum welding area indicator 52.
[0038] On the exhaust guide member 12, the sleeve 18 is in Figure 6 As can be seen in the welding relative positioning, weld 32 is formed such that it extends along the longitudinal axis L of the welded member into the axial extension region of transition region 56, so that although transition portion 62 is covered, transition portion 64 is not covered. Only then is weld 32 evaluated as correctly implemented. Otherwise, weld 32 is judged as incorrectly implemented, and it must be determined whether, and to what extent or in what manner, it should be corrected.
[0039] The present invention makes it possible, through simple structural measures, to inspect the welded area in such a way that the welded area is correctly sized or positioned. It should be noted that such a weld indicator arrangement can be provided on two components to be joined by welding, that is, not only on the welding component but also on the component to be welded. In the example shown, for example, a notch or groove-like recess can be formed on the outer surface 54 of the wall 14 of the exhaust guide component 12, spaced apart from the opening 16, for example as a concentric ring, so that the corresponding transition portion of the outer surface 54 provides a minimum weld area indicator and a maximum weld area indicator. Similarly, for example, when in Figure 6 When it can be seen that the weld 32 should only be implemented locally along the circumferential direction, it is also possible to provide a minimum weld area indicator and a maximum weld area indicator on the outer circumferential surface 34 of the sleeve 18 at different circumferential positions, for example, by providing a groove-shaped recess in the outer circumferential surface 34 extending along the longitudinal axis L of the welded member.
[0040] In one alternative design of the welding indicator arrangement structure, the welding indicator arrangement structure may have two recessed areas or groove-shaped recesses spaced apart from each other, one of the recessed areas forming a minimum welding area indicator and which should at least partially cover the welding area when welding correctly, while the other recessed area provides a maximum welding area indicator and should not, or at least should not, completely cover the welding area when welding correctly.
Claims
1. A method for welding at least one weldable component (22) to a component (28), the method comprising the following measures: a) Provide the at least one weldable member (22) as a sleeve (18) extending longitudinally along the longitudinal axis (L) of the weldable member, the sleeve having a receiving opening (20) and a member support surface (24) providing a support area (26) for axially supporting the sleeve (18) on the member (28) to which it is to be welded, wherein, A welding indicator arrangement structure (40) is provided on the outer peripheral area of the sleeve (18), wherein the welding indicator arrangement structure (40) has a minimum welding area indicator (46) that is to be covered by the welding area (30) and a maximum welding area indicator (52) that is not covered by the welding area (30), and the minimum welding area indicator (46) is at a smaller distance (d) from the component support surface (24) than the maximum welding area indicator (52). b) The sleeve (18) is positioned relative to the component (28) in a welding relative positioning such that the sleeve (18) is positioned axially against the component (28) with the component support surface (24) as the positioning point. c) A welding area (30) for fixing the sleeve (18) to the member (28) is generated as a weld (32) surrounding the sleeve (18), such that the minimum welding area indicator (46) of the welding indicator arrangement structure (40) is covered by the weld (32) and the maximum welding area indicator (52) of the welding indicator arrangement structure (40) is not covered by the weld (32).
2. The method according to claim 1, characterized in that, In measure a), the sleeve (18) is provided as a sensor receiving sleeve for the exhaust device (10) of the internal combustion engine, and the at least one welded area (30) produced in measure c) has a weld (32) that completely surrounds the sleeve (18).
3. The method according to claim 1 or 2, characterized in that, The minimum indicator of the welding area (46) has a contour change of the sleeve (18), and / or the maximum indicator of the welding area (52) has a contour change of the sleeve (18).
4. The method according to claim 3, characterized in that, The at least one welding indicator arrangement structure (40) has at least one recessed area (36) relative to the outer contour (33) of the sleeve (18).
5. The method according to claim 4, characterized in that, The minimum welding area indicator (46) has a transition portion (42) from the outer contour (33) to the recessed area (36), and the maximum welding area indicator (52) has a transition portion from the recessed area (36) to the outer contour (33).
6. The method according to claim 4, characterized in that, At least one welding indicator arrangement structure (40) has two recessed areas (36) that are set at a distance from each other relative to the outer contour of the sleeve (18).
7. The method according to claim 5, characterized in that, The outer contour is the outer peripheral contour of the sleeve (18) relative to the longitudinal axis (L) of the welded member, and the at least one recessed area (36) has a groove-shaped recess (38) with respect to the longitudinal axis (L) of the welded member.
8. The method according to claim 7, characterized in that, The at least one recessed region (36) has a groove-shaped recess (38) that completely surrounds the longitudinal axis (L) of the welded member.
9. The method according to claim 3, characterized in that, The welding indicator arrangement structure (40) has a transition region (56) between a first outer contour region (58) and a second outer contour region (60) offset from the first outer contour region (58), and the minimum welding area indicator (46) has a transition portion (62) from the first outer contour region (58) to the transition region (56), and the maximum welding area indicator (52) has a transition portion (64) from the transition region (56) to the second outer contour region (60).
10. The method according to claim 9, characterized in that, The first outer contour region (58) is the first outer periphery contour region of the sleeve (18) about the longitudinal axis (L) of the welded component, and the second outer contour region (60) is the second outer periphery contour region of the sleeve (18) about the longitudinal axis (L) of the welded component. In the first outer contour region (58), the sleeve (18) has a different radial dimension relative to the longitudinal axis (L) of the welded component than in the second outer contour region (60), and a transition portion from the radial dimension in the first outer contour region (58) to the radial dimension in the second outer contour region (60) is provided in the transition region (56).
11. The method according to claim 10, characterized in that, The transition region is formed in a truncated cone shape.
12. An exhaust device for an internal combustion engine, having at least one sleeve (18) fixed on an exhaust guide member (12) of a providing member (28) by means of the method according to any one of claims 1-11.