Fillet weld measuring device for narrow space
By designing auxiliary inspection fixtures to work with inspection rulers, the problem of inaccurate measurement of fillet welds in confined spaces was solved, achieving efficient and accurate measurement results.
Patent Information
- Application Number
- CN202423173996.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing welding gauges and steel rulers cannot effectively enter confined spaces to measure fillet welds, resulting in inaccurate measurement data.
An auxiliary inspection fixture was designed, including a slot and an abutting pointer, which is used in conjunction with an inspection ruler. It is fixed in a narrow space by a locking device to ensure that the inspection ruler fits snugly against the fillet weld and achieves accurate measurement.
It improves the accuracy and convenience of measuring fillet welds in confined spaces, solving the problem that conventional tools cannot effectively measure them.
Smart Images

Figure CN223485049U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of measuring device technology, specifically to a measuring device for fillet welds in confined spaces. Background Technology
[0002] Existing technology typically uses a weld gauge to measure welds. However, in practical applications, it has been found that some workpieces have narrow internal spaces during the construction of AP1000 steel structures. Since the existing weld gauge is only about 70mm in size, it cannot effectively enter the narrow space to measure the height of the fillet weld. If only a steel ruler is used for measurement, it is easy to shift, and the steel ruler cannot effectively fit the weld, which can easily lead to inaccurate measurement data.
[0003] Based on this, a fillet weld measuring device for use in confined spaces is provided. Utility Model Content
[0004] This invention addresses the technical problem that fillet welds in confined spaces cannot be measured using a weld gauge, and that using only a steel ruler results in inaccurate measurements due to easy displacement and the inability of the steel ruler to effectively conform to the weld. The aim is to provide a fillet weld measuring device for confined spaces. This device is smaller than existing weld gauges, allowing it to be inserted into narrow spaces for measurement. It is simple and convenient to operate, and improves the accuracy of the measurement.
[0005] This utility model is achieved through the following technical solution:
[0006] A measuring device for fillet welds in confined spaces includes a measuring ruler and further includes:
[0007] The auxiliary testing fixture has a slot and an abutting pointer, and the testing ruler is movably locked in the slot.
[0008] A locking device is connected to the auxiliary testing fixture and locks the measuring ruler inside the slot;
[0009] During measurement, the end of the abutting pointer rests against the edge of the fillet weld.
[0010] As a further technical solution of this utility model, the slot is a concave slot.
[0011] As a further technical solution of this utility model, the auxiliary detection fixture includes a base plate, side plates vertically connected to both sides of the base plate, and a protrusion, wherein the base plate, side plates, and protrusion together form an open slot.
[0012] As a further technical solution of this utility model, the protrusion is triangular.
[0013] As a further technical solution of this utility model, a through hole is provided on the base plate.
[0014] As a further technical solution of this utility model, the locking device is threadedly connected to the base plate through a through hole.
[0015] As a further technical solution of this utility model, the locking device is a bolt.
[0016] As a further technical solution of this utility model, the abutting pointer is triangular, and the bottom end face of the abutting pointer is flush with the end face of the side plate and the protrusion.
[0017] As a further technical solution of this utility model, the widest part of the auxiliary detection fixture does not exceed 35mm.
[0018] As a further technical solution of this utility model, the auxiliary testing tooling is made of steel ingot.
[0019] Compared with the prior art, this utility model has the following advantages and beneficial effects:
[0020] 1. This utility model designs an auxiliary testing fixture for use with a calibrated measuring ruler (150mm steel ruler). The auxiliary testing fixture can fit with the measuring ruler, and the measuring ruler can move up and down in the slot. At the same time, a locking device can fix the measuring ruler after it is adjusted to a suitable position to prevent the measuring ruler from moving and ensure accurate readings. The widest part of the auxiliary testing fixture of this utility model does not exceed 35mm, which is smaller than the size of existing welding measuring rulers, and can be inserted into narrow spaces to measure corner welds.
[0021] 2. In the measurement process of this utility model, the measuring ruler is first attached to the auxiliary measuring fixture, and the steel ruler is placed in the workpiece to be measured, so that the bottom reference surface of the steel ruler is in horizontal contact with the bottom of the workpiece. The locking device is adjusted to move the auxiliary measuring fixture to a suitable position, so that the tip of the abutting pointer is against the edge of the fillet weld and completely in contact with the fillet weld to be measured. The measuring ruler is then locked to the auxiliary measuring fixture, the measuring device is removed, and the reading is taken to complete the measurement of the fillet weld leg height data. This effectively solves the problem that conventional weld measuring rulers cannot be used effectively due to limited space, and that inaccurate measurement data is easily caused by using only a measuring ruler.
[0022] 3. In this utility model, the abutment pointer is set on the side of the side plate and is set in a triangular shape. The bottom end face of the abutment pointer is flush with the end face of the side plate and the protrusion. By setting the abutment pointer in a triangular shape, its end is an acute-angled tip, which can point to and effectively fit with the edge of the fillet weld, making it convenient for human eyes to observe and assist in checking whether the position of the tooling is appropriate, thereby improving the accuracy of measurement and detection. Attached Figure Description
[0023] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:
[0024] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0025] Figure 2 This is a side sectional view of the present invention;
[0026] Figure 3 A schematic diagram of the three-dimensional structure of the auxiliary testing fixture;
[0027] Figure 4 A top view of the auxiliary inspection fixture;
[0028] Figure 5 A front view of the auxiliary inspection fixture.
[0029] The attached diagram shows the markings and corresponding component names:
[0030] 100-Auxiliary inspection fixture, 101-Base plate, 102-Side plate, 103-Slot, 104-Protrusion, 105-Through hole, 106-Abutting pointer, 200-Inspection ruler, 300-Locking device. Detailed Implementation
[0031] 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 embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.
[0032] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures, circuits, materials, or methods are not specifically described in order to avoid obscuring the present invention.
[0033] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0034] In the description of this utility model, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the product of this application is usually placed in when in use, or the orientation or positional relationship that is commonly understood by those skilled in the art. It is only for the convenience of describing this application and simplifying the description, and is not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.
[0035] Meanwhile, the terms "set up," "assemble," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0036] Example
[0037] This embodiment provides a fillet weld measuring device for use in confined spaces, such as... Figure 1-Figure 5 As shown, it includes a measuring ruler 200, an auxiliary measuring fixture 100, and a locking device 300.
[0038] The auxiliary detection fixture 100 has a slot 103 and an abutting pointer 106, and the detection ruler 200 is movably engaged in the slot 103.
[0039] like Figure 3 and 4 As shown, the slot 103 is a concave groove, which facilitates the insertion of the detection ruler 200 into the auxiliary detection fixture 100.
[0040] The auxiliary testing fixture 100 includes a base plate 101, side plates 102 vertically connected to both sides of the base plate 101, and a protrusion 104. The base plate 101, side plates 102, and protrusion 104 together form an open slot 103. The auxiliary testing fixture 100 is made of steel ingot. The protrusion 104 is triangular to facilitate human observation and reduce obstruction of the line of sight. A through hole 105 is provided on the base plate 101, and the inner wall of the through hole 105 is threaded. It is connected to the locking device 300 through the thread to fix the measuring ruler 200.
[0041] The locking device 300 is connected to the auxiliary detection fixture 100 and locks the detection ruler 200 inside the slot 103. In a specific embodiment, the locking device 300 is a bolt.
[0042] During measurement, the end of the abutment pointer 106 rests against the edge of the fillet weld. For example... Figure 5 As shown, in one specific embodiment, the abutment pointer 106 is disposed on the side of the side plate 102. The abutment pointer 106 is triangular, and its bottom end face is flush with the end face of the side plate 102 and the protrusion 104. By setting the abutment pointer 106 to a triangular shape with an acute-angled tip, it can point to and effectively fit against the edge of the fillet weld, facilitating visual observation and auxiliary inspection of whether the tooling position is appropriate, thereby improving the accuracy of measurement and detection.
[0043] This utility model designs an auxiliary testing fixture 100 for use with a calibrated measuring ruler 200 (150mm steel ruler). The auxiliary testing fixture 100 can fit with the measuring ruler 200, and the measuring ruler 200 can move up and down within the slot 103. At the same time, by setting a locking device 300, the measuring ruler 200 can be fixed after it is adjusted to a suitable position to prevent the measuring ruler 200 from moving and ensure accurate readings. The widest part of the auxiliary testing fixture 100 of this utility model does not exceed 35mm, which is smaller than the size of existing welding measuring rulers, and can be inserted into narrow spaces to measure corner welds.
[0044] During measurement, first, the measuring ruler 200 is attached to the auxiliary measuring fixture 100. The steel ruler is placed on the workpiece to be measured, so that the bottom reference surface of the steel ruler is in horizontal contact with the bottom of the workpiece. The locking device 300 is adjusted to move the auxiliary measuring fixture 100 to a suitable position, so that the tip of the abutting pointer 106 is against the edge of the fillet weld and fully in contact with the fillet weld to be measured. The measuring ruler 200 is then locked to the auxiliary measuring fixture 100. The measuring device is then removed, the reading is taken, and the fillet weld leg height data is measured. This effectively solves the problem that conventional weld measuring rulers cannot be used effectively due to limited space, and that inaccurate measurement data is easily caused by using only the measuring ruler 200.
[0045] Finally, it should be noted that the above specific embodiments are only used to describe the purpose, technical solution, and beneficial effects of this utility model in detail. It should be understood that the above description is only a specific implementation of this utility model and is not intended to limit the protection scope of this utility model. Although this utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions or improvements can be made to some or all of the technical features. These modifications, equivalent substitutions, and improvements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.
Claims
1. A measuring device for fillet welds in confined spaces, comprising a measuring ruler (200), characterized in that, Also includes: An auxiliary testing fixture (100) has a slot (103) and an abutment pointer (106), and the testing ruler (200) is movably engaged in the slot (103); The locking device (300) is connected to the auxiliary detection fixture (100) and locks the detection ruler (200) inside the slot (103); During measurement, the end of the abutment pointer (106) rests against the edge of the fillet weld.
2. The fillet weld measuring device for confined spaces according to claim 1, characterized in that, The slot (103) is a concave groove.
3. The fillet weld measuring device for confined spaces according to claim 1, characterized in that, The auxiliary detection fixture (100) includes a base plate (101), side plates (102) vertically connected to both sides of the base plate (101), and a protrusion (104). The base plate (101), side plates (102), and protrusion (104) together form an open slot (103).
4. The fillet weld measuring device for confined spaces according to claim 3, characterized in that, The protrusion (104) is triangular.
5. A fillet weld measuring device for confined spaces according to claim 3, characterized in that, The base plate (101) has a through hole (105).
6. A fillet weld measuring device for confined spaces according to claim 5, characterized in that, The locking device (300) is threadedly connected to the base plate (101) through a through hole (105).
7. A fillet weld measuring device for confined spaces according to claim 6, characterized in that, The locking device (300) is a bolt.
8. A fillet weld measuring device for confined spaces according to claim 1, characterized in that, The contact pointer (106) is triangular, and the bottom end face of the contact pointer (106) is flush with the end face of the side plate (102) and the protrusion (104).
9. A fillet weld measuring device for confined spaces according to any one of claims 1-8, characterized in that, The widest part of the auxiliary testing fixture (100) does not exceed 35mm.
10. A fillet weld measuring device for confined spaces according to claim 9, characterized in that, The auxiliary testing fixture (100) is made of steel ingot.