A sleeve-shaped welding member transverse positioning detection mechanism

Abstract

The utility model discloses a kind of sleeve-shaped welding piece transverse positioning detection mechanism, it is related to welding piece detection technical field, including water tank frame small support body, a pair of through holes is dug in water tank frame small support body, preloading nut is welded on water tank frame small support body, and preloading nut is corresponding with the through hole located above, the side of water tank frame small support body is equipped with first connecting sleeve.The utility model is wrapped in the outside of fiber-optic sensor body by setting first connecting sleeve and second connecting sleeve, forms physical barrier protection, and drives fiber-optic sensor body to extend to preloading nut inside and carry out "in position / loss" state close-range detection, not only fast and accurate, compared with naked detection of prior art, welding slag splashed in welding area can not be easily attached on the detection end of fiber-optic sensor body, reduce interference, not prone to damage, guarantee its detection accuracy.

Description

Technical Field

[0001] This utility model belongs to the field of welding component inspection technology, and in particular relates to a sleeve-shaped welding component lateral positioning inspection mechanism. Background Technology

[0002] In the manufacturing process of assemblies such as longitudinal beams, U-beams, and water tank frames (especially small supports for water tank frames), sleeve-shaped welded parts such as nuts and sleeves are key components that ensure the structural connection stability and functional effectiveness of the assembly. They need to be precisely welded to their predetermined installation positions in advance. If such sleeve-shaped welded parts fall off or are lost from their intended positions, it will not only directly cause subsequent assembly processes to be unable to proceed normally, resulting in production stoppages, but also render the already processed assemblies scrap due to the loss of key connecting components, significantly increasing production costs and production cycle losses.

[0003] Currently, to avoid the loss of sleeve-shaped welded parts, existing technologies often use fiber optic sensors for detection. This involves using the lateral optical path signal feedback of the fiber optic sensor to determine if the sleeve-shaped welded part is in a predetermined position. (The exposed fiber optic sensor emits visible or infrared light of a specific wavelength towards the nut's location and provides signal feedback. If the nut is in place, the light is reflected by the nut's surface (or blocked by the nut), and the reflected light is captured by the fiber optic sensor's receiver, forming a "signal present" feedback. If the nut is missing, the light is unobstructed (or only illuminates the support surface, resulting in a weak reflected signal), and the receiver provides no effective signal feedback.) However, during the welding process of sleeve-shaped welded parts, a large amount of welding slag is generated in the welding area. This slag easily adheres to the detection end of the fiber optic sensor, interfering with the sensor's optical path signal transmission, leading to decreased detection accuracy and increased false positive rate. In severe cases, it can even cause the fiber optic sensor to completely fail, rendering it unable to perform normal detection functions. Therefore, this invention proposes a lateral positioning detection mechanism for sleeve-shaped welded parts. Utility Model Content

[0004] This invention provides a sleeve-shaped welding component lateral positioning detection mechanism. By setting a first connecting sleeve and a second connecting sleeve to wrap around the outside of the fiber optic sensor body, a physical barrier is formed for protection. This allows the fiber optic sensor body to extend into the pre-installed nut for close-range detection of "in-place / missing" states. This method is not only fast and accurate, but also, compared to the exposed detection method of existing technologies, it prevents weld spatter from adhering to the detection end of the fiber optic sensor body, reducing interference and preventing damage, thus ensuring detection accuracy. The compression nut, in conjunction with the L-shaped sleeve and L-shaped groove, compresses the first connecting sleeve and the detection end of the fiber optic sensor body after they extend into the pre-installed nut. The system is designed to be tight and stable. Simultaneously, the lateral compression hole, in conjunction with external screws, compresses and presses the fiber optic sensor body inside the first connecting sleeve, ensuring the long-term stability of the relative position between the fiber optic sensor body and the detection through-hole. This prevents optical path misalignment due to vibration and reduces false alarms. A pair of L-shaped clamps hold the water tank frame bracket body in a stable position at the detection reference point, ensuring that the detection ends of the first connecting sleeve and the fiber optic sensor body extend precisely into the pre-installed nut. This also prevents displacement or shaking during welding, thus avoiding alignment deviations between the pre-installed nut and the detection end of the fiber optic sensor body, further reducing false alarms. In summary, this solves the problems in the background technology.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model discloses a transverse positioning and detection mechanism for sleeve-shaped welded parts, comprising:

[0007] The water tank frame bracket body has a pair of through holes drilled on it. A pre-installed nut is welded to the water tank frame bracket body, and the pre-installed nut corresponds to the through hole located above. A first connecting sleeve is provided on one side of the water tank frame bracket body, and a second connecting sleeve is threaded to one end of the outer wall of the first connecting sleeve. A fiber optic sensor body is installed between the interiors of the first and second connecting sleeves, and the detection end of the fiber optic sensor body is located inside the first connecting sleeve and is laterally positioned. A detection through hole is drilled on the side wall of the first connecting sleeve, and the detection end of the fiber optic sensor body corresponds to the detection through hole. The end of the first connecting sleeve away from the second connecting sleeve passes through the through hole located above and extends into the pre-installed nut. An L-shaped sleeve block is provided on one side of the water tank frame bracket body, and a sleeve hole is drilled on the L-shaped sleeve block. The L-shaped sleeve block is fitted onto the outer wall of the first connecting sleeve through the sleeve hole. A compression nut is threaded to the outer wall of the first connecting sleeve, and the compression nut is in close contact with the L-shaped sleeve block.

[0008] Furthermore, the outer wall of the first connecting sleeve is provided with external threads, the inner wall of the second connecting sleeve is provided with internal threads, and the internal threads on the second connecting sleeve are threadedly connected to the external threads on the first connecting sleeve. The first connecting sleeve is threadedly connected to the compression nut through the external threads.

[0009] Furthermore, the L-shaped sleeve has an L-shaped groove on the side near the pre-installed nut, and the inner wall of the L-shaped groove is in close contact with the outer wall of the first connecting sleeve.

[0010] Furthermore, the side wall of the first connecting sleeve is provided with a lateral extrusion hole, and the end of the first connecting sleeve away from the second connecting sleeve is tapered.

[0011] Furthermore, a first connecting frame is threadedly connected to one side of the L-shaped sleeve block, and a second connecting frame is provided on both sides of the water tank frame bracket body. An L-shaped clamp is threadedly connected to the second connecting frame, and the opposite sides of the pair of L-shaped clamps are in close contact with the two sides of the water tank frame bracket body.

[0012] Furthermore, the L-shaped sleeve, the first connecting frame, the second connecting frame, and the L-shaped clamp are all drilled with multiple first screw holes, and first screws are threaded into the first screw holes. The L-shaped sleeve and the first connecting frame, as well as the second connecting frame and the L-shaped clamp, are connected by first screws. The first connecting frame and the second connecting frame are all drilled with second screw holes, and second screws are threaded into the second screw holes.

[0013] The present invention has the following advantages over the prior art:

[0014] 1. Physical barrier protection to reduce welding slag interference: This technical solution forms a physical barrier by setting a first connecting sleeve and a second connecting sleeve to wrap around the outside of the fiber optic sensor body. This allows the fiber optic sensor body to extend into the pre-installed nut for close-range detection of the "in-place / missing" state. This is not only fast and accurate, but also, compared to the exposed detection of existing technologies, it prevents welding slag from adhering to the detection end of the fiber optic sensor body, reducing interference, preventing damage, and ensuring detection accuracy.

[0015] 2. Compression to prevent loosening and ensure detection accuracy: This technical solution uses a compression nut in conjunction with an L-shaped sleeve and an L-shaped groove to compress and tighten the first connecting sleeve and the fiber optic sensor body after they extend into the pre-installed nut, keeping them stable. At the same time, the lateral compression hole, in conjunction with the external screw, can compress and tighten the fiber optic sensor body inside the first connecting sleeve, ensuring the long-term stability of the relative position between the fiber optic sensor body and the detection through hole, avoiding optical path deviation caused by vibration and reducing misjudgment.

[0016] 3. Fixed bracket to prevent shaking and reduce misjudgment: This technical solution uses a pair of L-shaped clamps to hold the small bracket body of the water tank frame in opposite directions, which can stabilize it in the detection reference position. This ensures that the detection end of the first connecting sleeve and the fiber optic sensor body can be accurately extended into the pre-installed nut, while avoiding displacement or shaking during the welding process. This avoids the alignment deviation between the pre-installed nut and the detection end of the fiber optic sensor body, and further reduces detection misjudgment.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a three-dimensional structural diagram of a sleeve-shaped welding component transverse positioning and detection mechanism according to the present invention;

[0020] Figure 2 This is a three-dimensional structural diagram of the water tank frame bracket body and the through hole in this utility model;

[0021] Figure 3 This is a partial three-dimensional structural diagram of a sleeve-shaped welding component transverse positioning and detection mechanism according to the present invention;

[0022] Figure 4 This is a partial three-dimensional structural schematic diagram of a sleeve-shaped welding component transverse positioning and detection mechanism according to this utility model from another perspective;

[0023] Figure 5 This is a partial top view of the transverse positioning and detection mechanism for a sleeve-shaped welded component according to the present invention.

[0024] Figure 6 In this utility model Figure 5 A schematic diagram of the cross-sectional structure;

[0025] Figure 7 This is a three-dimensional structural diagram of the second connecting sleeve, the compression nut, and the fiber optic sensor body in this utility model.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Water tank frame bracket body; 2. Through hole; 3. Pre-installed nut; 4. L-shaped sleeve; 5. First connecting sleeve; 6. Second connecting sleeve; 7. Compression nut; 8. Fiber optic sensor body; 9. Detection through hole; 10. L-shaped groove; 11. Lateral compression hole; 12. First connecting frame; 13. First screw; 14. Second connecting frame; 15. L-shaped clamp; 16. Second screw. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be understood that the terms "relative", "one end", "inner", "lateral", "end", "both ends", "both sides", "front", "one end face", "the other end face", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Specific Implementation

[0030] Please see Figures 1-7 As shown, the present invention provides a sleeve-shaped welding component transverse positioning and detection mechanism, comprising:

[0031] The water tank frame bracket body 1 has a pair of through holes 2 drilled on it. A pre-installed nut 3 is welded onto the water tank frame bracket body 1, and the pre-installed nut 3 corresponds to the through hole 2 located above. A first connecting sleeve 5 is provided on one side of the water tank frame bracket body 1, and a second connecting sleeve 6 is threadedly connected to one end of the outer wall of the first connecting sleeve 5. A fiber optic sensor body 8 is installed between the interior of the first connecting sleeve 5 and the second connecting sleeve 6, with the detection end of the fiber optic sensor body 8 located inside the first connecting sleeve 5 and designed for lateral movement. The first connecting sleeve 5 has a detection through hole 9 drilled on its side wall, and the detection end of the fiber optic sensor body 8 corresponds to the detection through hole 9. The end of the first connecting sleeve 5 away from the second connecting sleeve 6 passes through the upper through hole 2 and extends into the pre-installed nut 3. An L-shaped sleeve block 4 is provided on one side of the water tank frame bracket body 1, and a sleeve hole is drilled on the L-shaped sleeve block 4. The L-shaped sleeve block 4 is sleeved on the outer wall of the first connecting sleeve 5 through the sleeve hole. A compression nut 7 is threadedly connected to the outer wall of the first connecting sleeve 5, and the compression nut 7 is in close contact with the L-shaped sleeve block 4.

[0032] In the specific implementation process, an external driving device (such as a cylinder) drives one end of the first connecting sleeve 5 through the upper through hole 2 and extends into the pre-installed nut 3, thereby driving the detection end of the fiber optic sensor body 8 (in this embodiment, its model can be FX-101-CC2 (diffuse reflection type), compact and suitable for narrow spaces) to extend into the pre-installed nut 3. Through the side-opened detection through hole 9, it can be directly aligned with the inner wall surface of the pre-installed nut 3 instead of detecting from a long distance along the axial direction. The detection optical path is short, the light attenuation is small, and the reflected signal intensity is high and stable. Then, the rotating and pressing nut 7 presses the L-shaped sleeve 4 towards the small bracket of the water tank frame. In the direction of body 1, the L-shaped sleeve 4 presses the protruding part on the first connecting sleeve 5 into close contact with one side of the water tank frame bracket body 1, so that the first connecting sleeve 5 remains fixed and is not easy to shift. Then, the detection end of the fiber optic sensor body 8 can be directly shot to the pre-installed nut 3 through the detection through hole 9 to perform close-range detection of the "in place / missing" state. Moreover, the fiber optic sensor body 8 is located inside the first connecting sleeve 5 and the second connecting sleeve 6, and only a very small area is exposed through the detection through hole 9 (about 1 / 10 of the traditional exposed sensor). Welding slag is difficult to adhere to, reducing interference and preventing damage, thus ensuring its detection accuracy.

[0033] The outer wall of the first connecting sleeve 5 is provided with external threads, the inner wall of the second connecting sleeve 6 is provided with internal threads, and the internal threads on the second connecting sleeve 6 are threadedly connected to the external threads on the first connecting sleeve 5. The first connecting sleeve 5 is threadedly connected to the compression nut 7 through the external threads.

[0034] The first connecting sleeve 5 and the second connecting sleeve 6 are screwed together to form a closed cavity that encloses the fiber optic sensor body 8; the compression nut 7 is screwed into the first connecting sleeve 5 through its external thread, and the thread feed applies controllable pressure to the L-shaped sleeve block 4 to achieve compression and tightening, thus ensuring the fixation of the first connecting sleeve 5.

[0035] Among them, the L-shaped sleeve 4 has an L-shaped groove 10 cut on the side near the pre-installed nut 3, and the inner wall of the L-shaped groove 10 is in close contact with the outer wall of the first connecting sleeve 5.

[0036] The tight fit of the L-shaped groove 10 reduces the radial displacement space of the first connecting sleeve 5 (and in this embodiment, the inner wall of the L-shaped groove 10 can be provided with an "annular sealing groove" (cross-sectional size 2mm×1mm) and a "high temperature resistant O-ring" (material fluororubber, model O-ring 20×2.4mm) can be embedded to ensure that when the L-shaped sleeve 4 is fitted with the first connecting sleeve 5, the sealing ring is compressed by 10%-20% to achieve gap sealing), ensuring the stability of the first connecting sleeve 5 and preventing it from shaking or shifting.

[0037] The first connecting sleeve 5 has a lateral extrusion hole 11 cut into its side wall, and the end of the first connecting sleeve 5 away from the second connecting sleeve 6 is tapered.

[0038] During installation, tools such as screws can be used to squeeze the housing of the fiber optic sensor body 8 by passing through the lateral extrusion hole 11 (in this embodiment, the lateral extrusion hole 11 can be set as an M3 threaded hole with a depth of 5mm), and the matching screw is an M3×6 socket head cap screw (material 304 stainless steel). A 5mm×3mm×1mm silicone pad (material fluororubber, high temperature resistant 200℃) is attached to the end of the screw to avoid directly squeezing the sensor housing. This further fixes the fiber optic sensor body 8 and prevents it from axially moving within the first connecting sleeve 5 and the second connecting sleeve 6. The extension end of the first connecting sleeve 5 is tapered, which reduces the contact area so that it can still extend into the pre-installed nut 3 and make corresponding adjustments when displacement deviation occurs.

[0039] Among them, the L-shaped sleeve 4 is threadedly connected to one side of the first connecting frame 12, and the water tank frame small bracket body 1 is provided with a second connecting frame 14 on both sides. The second connecting frame 14 is threadedly connected to an L-shaped clamp 15, and the opposite sides of the pair of L-shaped clamps 15 are in close contact with the two sides of the water tank frame small bracket body 1.

[0040] By using an external driving device (such as a cylinder) to drive a pair of L-shaped clamps 15 to clamp the water tank frame bracket body 1 in opposite directions, the water tank frame bracket body 1 can be stabilized at the detection reference position, ensuring that the detection end of the first connecting sleeve 5 and the fiber optic sensor body 8 can be accurately extended into the pre-installed nut 3 (in actual use, the position can also be detected and adjusted accordingly by an industrial camera to ensure accurate extension), while avoiding displacement or shaking during the welding process, thereby avoiding alignment deviation between the pre-installed nut 3 and the detection end of the fiber optic sensor body 8, and further reducing detection misjudgment.

[0041] Among them, the L-shaped sleeve 4, the first connecting frame 12, the second connecting frame 14 and the L-shaped clamp 15 are all drilled with multiple first screw holes, and the first screw holes are threaded with first screws 13. The L-shaped sleeve 4 and the first connecting frame 12, as well as the second connecting frame 14 and the L-shaped clamp 15, are all connected by the first screws 13. The first connecting frame 12 and the second connecting frame 14 are all drilled with second screw holes, and the second screw holes are threaded with second screws 16.

[0042] The first screw 13 is used for the detachable connection between the L-shaped sleeve 4 and the first connecting frame 12, the second connecting frame 14 and the L-shaped clamp 15. The second screw 16 can be used to drive the first connecting frame 12 and the second connecting frame 14 to external driving equipment (such as cylinders) so as to drive the detection end of the first connecting sleeve 5 and the fiber optic sensor body 8 to extend into the pre-installed nut 3, or drive a pair of L-shaped clamps 15 to clamp and fix the water tank frame bracket body 1.

[0043] The circuits, electronic components, and chip modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0044] All standard parts used in the application documents can be purchased from the market. All components in this application document can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The electrical components mentioned in this document are all electrically connected to the external main controller and power supply, and the main controller is a conventional known device that can play a control role.

[0045] The working principle of this utility model is as follows:

[0046] In use, this invention uses an external driving device to drive a pair of L-shaped clamps 15 to clamp the water tank frame bracket body 1 in opposite directions, stabilizing the water tank frame bracket body 1 at the detection reference position. Then, the external driving device drives one end of the first connecting sleeve 5 through the upper through hole 2 and extends into the pre-installed nut 3, driving the detection end of the fiber optic sensor body 8 to extend into the pre-installed nut 3. Through the side-opened detection through hole 9, it can be directly aligned with the inner wall surface of the pre-installed nut 3. Then, the rotating and pressing nut 7 presses the L-shaped sleeve 4 towards the water tank frame bracket body 1, so that the L-shaped sleeve 4 presses the protruding part on the first connecting sleeve 5 into close contact with one side of the water tank frame bracket body 1, making the first connecting sleeve 5 fixed. Next, the detection end of the fiber optic sensor body 8 can be horizontally shot directly into the pre-installed nut 3 through the detection through hole 9 to perform close-range detection of the "in place / missing" state.

[0047] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A transverse positioning and detection mechanism for sleeve-shaped welded parts, characterized in that, include: The water tank frame bracket body (1) has a pair of through holes (2) drilled on it. A pre-installed nut (3) is welded on the water tank frame bracket body (1), and the pre-installed nut (3) corresponds to the through hole (2) located above. A first connecting sleeve (5) is provided on one side of the water tank frame bracket body (1), and a second connecting sleeve (6) is threaded to one end of the outer wall of the first connecting sleeve (5). An optical fiber sensor body (8) is installed between the interior of the first connecting sleeve (5) and the second connecting sleeve (6), and the detection end of the optical fiber sensor body (8) is located inside the first connecting sleeve (5) and is set laterally. The first connecting sleeve (5) has a detection through hole (9) drilled on its side wall, and the detection end of the fiber optic sensor body (8) corresponds to the detection through hole (9). The end of the first connecting sleeve (5) away from the second connecting sleeve (6) passes through the upper through hole (2) and extends into the pre-installed nut (3). The side of the water tank frame bracket body (1) is provided with an L-shaped sleeve block (4), and a sleeve hole is drilled on the L-shaped sleeve block (4). The L-shaped sleeve block (4) is sleeved on the outer wall of the first connecting sleeve (5) through the sleeve hole. The outer wall of the first connecting sleeve (5) is threaded with a compression nut (7), and the compression nut (7) is in close contact with the L-shaped sleeve block (4). The outer wall of the first connecting sleeve (5) is provided with an external thread, the inner wall of the second connecting sleeve (6) is provided with an internal thread, and the internal thread on the second connecting sleeve (6) is threadedly connected to the external thread on the first connecting sleeve (5). The first connecting sleeve (5) is threadedly connected to the compression nut (7) through the external thread. The first connecting sleeve (5) and the second connecting sleeve (6) are screwed together by the threads to form a closed cavity to wrap the fiber optic sensor body (8).

2. The transverse positioning and detection mechanism for sleeve-shaped welded parts according to claim 1, characterized in that, The L-shaped sleeve (4) has an L-shaped groove (10) on the side near the pre-installed nut (3), and the inner wall of the L-shaped groove (10) is in close contact with the outer wall of the first connecting sleeve (5).

3. The transverse positioning and detection mechanism for sleeve-shaped welded parts according to claim 1, characterized in that, The side wall of the first connecting sleeve (5) is provided with a lateral extrusion hole (11), and the end of the first connecting sleeve (5) away from the second connecting sleeve (6) is tapered.

4. The transverse positioning and detection mechanism for sleeve-shaped welded parts according to claim 1, characterized in that, The L-shaped sleeve (4) is threaded with a first connecting frame (12) on one side, and the water tank frame small support body (1) is provided with a second connecting frame (14) on both sides. The second connecting frame (14) is threaded with an L-shaped clamp (15), and the opposite sides of the pair of L-shaped clamps (15) are in close contact with the two sides of the water tank frame small support body (1).

5. The transverse positioning and detection mechanism for sleeve-shaped welded parts according to claim 4, characterized in that, The L-shaped sleeve (4), the first connecting frame (12), the second connecting frame (14) and the L-shaped clamp (15) are all drilled with multiple first screw holes, and the first screw holes are threaded with first screws (13). The L-shaped sleeve (4) and the first connecting frame (12) and the second connecting frame (14) and the L-shaped clamp (15) are connected by first screws (13). The first connecting frame (12) and the second connecting frame (14) are all drilled with second screw holes, and the second screw holes are threaded with second screws (16).

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