Sealing detection device for welding seam of mechanical part

By designing a tight-fitting detection device with a rotating and multi-angle detection mechanism, the problems of welding defects in robots and low efficiency of manual inspection were solved, and efficient and accurate inspection of weld seams in mechanical parts was achieved.

CN223924412UActive Publication Date: 2026-02-17HANG ZHOU CHA CHE BAN HAN YOU XIAN GONG SI
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Patent Information

Application Number
CN202520717124.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-02-17
Estimated Expiration
2035-04-16

AI Technical Summary

Technical Problem

Robot welding defects are a serious problem, and manual inspection is inefficient, making it difficult to efficiently and accurately inspect the tightness of welds on mechanical parts.

Method used

A tight-fitting inspection device including a rotating mechanism and a multi-angle inspection mechanism was designed. The device utilizes a drive motor and a dual-axis motor to achieve multi-angle inspection of weld defects in X-ray machines. Combined with an arc-shaped guide rail and a guide groove, it achieves stable movement, thereby improving the inspection range and accuracy.

Benefits of technology

It enables multi-angle, high-precision inspection of weld seams in mechanical parts, improving inspection efficiency and accuracy, and reducing the missed detection rate of manual inspection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a sealing detection device for a weld joint of a mechanical part. The sealing detection device for the welding seam of the mechanical part comprises a base, wherein a rotating mechanism and a multi-angle detection mechanism are arranged on the base; the rotating mechanism comprises an L-shaped frame, a driving motor, a fixing shaft, a rectangular plate, four connecting blocks and two arc-shaped guide rails, the L-shaped frame is fixedly installed on the top of the base, the driving motor is fixedly installed on the L-shaped frame, the fixing shaft is fixedly installed on an output shaft of the driving motor, the rectangular plate is fixedly installed at the bottom end of the fixing shaft, and the four connecting blocks are fixedly installed on the rectangular plate. The four connecting blocks are fixedly installed at the bottom of the rectangular plate, and the two arc-shaped guide rails are fixedly installed at the bottoms of the four connecting blocks. The sealing detection device for the welding seam of the mechanical part has the advantages that laser detection can be carried out on the welding seam of a frame, multi-angle detection can be carried out, and the detection accuracy is improved.
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Description

Technical Field

[0001] This utility model belongs to the field of weld inspection technology, and in particular relates to a tightness inspection device for welds of mechanical parts. Background Technology

[0002] With the promotion of machine replacement and intelligent factories, robots are increasingly being used in the welding field, especially in the production of forklift structural parts. Due to the low dimensional accuracy of structural parts, the problem of robot welding defects is becoming more and more serious. Manual inspection is carried out afterward, but manual inspection is inefficient and easy to miss.

[0003] Therefore, it is necessary to provide a new sealing detection device for weld seams of mechanical parts to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a sealing detection device for weld seams of mechanical parts that can perform laser detection on the weld seams of vehicle frames and can perform multi-angle detection to improve the detection accuracy.

[0005] To solve the above-mentioned technical problems, the present invention provides a sealing detection device for weld seams of mechanical parts, comprising: a base, wherein a rotating mechanism and a multi-angle detection mechanism are provided on the base;

[0006] The rotating mechanism includes an L-shaped frame, a drive motor, a fixed shaft, a rectangular plate, four connecting blocks, and two arc-shaped guide rails. The L-shaped frame is fixedly installed on the top of the base, the drive motor is fixedly installed on the L-shaped frame, the fixed shaft is fixedly installed on the output shaft of the drive motor, the rectangular plate is fixedly installed on the bottom of the fixed shaft, the four connecting blocks are all fixedly installed on the bottom of the rectangular plate, and the two arc-shaped guide rails are fixedly installed on the bottom of the four connecting blocks.

[0007] The multi-angle inspection mechanism includes a moving plate, a X-ray machine weld defect detector, four fixed plates, four rollers, and a dual-axis motor. The moving plate is positioned between two arc-shaped guide rails. The X-ray machine weld defect detector is fixedly mounted on the moving plate. All four fixed plates are fixedly mounted on one side of the moving plate. The four rollers are respectively mounted on the four fixed plates and each roller contacts one of the two arc-shaped guide rails. The dual-axis motor is fixedly mounted on one side of the moving plate, and its two output shafts are fixedly connected to the corresponding two rollers.

[0008] As a further embodiment of this utility model, four mounting rods are fixedly installed on the L-shaped frame, and a disc is fixedly installed at the bottom end of the four mounting rods. Four pull plates are fixedly installed on the top of the rectangular plate, and support wheels are rotatably installed on the four pull plates. All four support wheels are in contact with the top of the disc.

[0009] As a further embodiment of this utility model, an arc-shaped guide groove is provided on the arc-shaped guide rail, an L-shaped guide rod is fixedly installed on the moving plate, a guide wheel is fixedly installed on the L-shaped guide rod, and the guide wheel is located in the arc-shaped guide groove and is adapted to the arc-shaped guide groove.

[0010] As a further embodiment of this utility model, a plurality of support rods are fixedly installed on the top of the base, and a placement platform is fixedly installed on the top of the plurality of support rods.

[0011] As a further embodiment of this utility model, a plurality of connecting plates are fixedly installed between the two arc-shaped guide rails, and the plurality of connecting plates are evenly distributed.

[0012] As a further embodiment of this utility model, a circular hole is provided on the disk, and the fixed shaft passes through the circular hole.

[0013] Compared with related technologies, the sealing detection device for weld seams of mechanical parts provided by this utility model has the following advantages:

[0014] 1. This utility model, by setting a rotating mechanism, enables the arc-shaped guide rail to rotate, thereby allowing the X-ray machine weld defect detector to rotate more accurately and improve the detection range;

[0015] 2. This utility model, by setting up a multi-angle detection mechanism, enables the X-ray machine weld defect detector to move on an arc-shaped guide rail, thereby cooperating with the rotation mechanism to perform multi-angle detection, improving the detection range and accuracy. Attached Figure Description

[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 A three-dimensional structural schematic diagram of the sealing detection device for weld seams of mechanical parts provided by this utility model;

[0018] Figure 2 A partial structural diagram of the sealing detection device for weld seams of mechanical parts provided by this utility model;

[0019] Figure 3 This is a second partial structural schematic diagram of the sealing detection device for weld seams of mechanical parts provided by this utility model.

[0020] Figure 4 This is a schematic diagram of the third part of the structure of the sealing detection device for weld seams of mechanical parts provided by this utility model.

[0021] In the diagram: 1. Base; 2. L-shaped frame; 3. Drive motor; 4. Fixed shaft; 5. Rectangular plate; 6. Connecting block; 7. Arc-shaped guide rail; 8. Moving plate; 9. X-ray machine weld defect detector; 10. Fixed plate; 11. Roller; 12. Dual-axis motor; 13. Mounting rod; 14. Disc; 15. Pull plate; 16. Support wheel; 17. Arc-shaped guide groove; 18. L-shaped guide rod; 19. Guide wheel; 20. Support rod; 21. Placement platform; 22. Connecting plate. Detailed Implementation

[0022] Please refer to the following: Figure 1 , Figure 2 , Figure 3 and Figure 4 ,in, Figure 1 A three-dimensional structural schematic diagram of the sealing detection device for weld seams of mechanical parts provided by this utility model; Figure 2 A partial structural diagram of the sealing detection device for weld seams of mechanical parts provided by this utility model; Figure 3 This is a second partial structural schematic diagram of the sealing detection device for weld seams of mechanical parts provided by this utility model. Figure 4 This is a third partial structural diagram of the sealing detection device for weld seams of mechanical parts provided by this utility model. The sealing detection device for weld seams of mechanical parts includes: a base 1, on which a rotating mechanism and a multi-angle detection mechanism are provided;

[0023] The rotating mechanism includes an L-shaped frame 2, a drive motor 3, a fixed shaft 4, a rectangular plate 5, four connecting blocks 6, and two arc-shaped guide rails 7. The L-shaped frame 2 is fixedly installed on the top of the base 1, the drive motor 3 is fixedly installed on the L-shaped frame 2, the fixed shaft 4 is fixedly installed on the output shaft of the drive motor 3, the rectangular plate 5 is fixedly installed on the bottom of the fixed shaft 4, the four connecting blocks 6 are all fixedly installed on the bottom of the rectangular plate 5, and the two arc-shaped guide rails 7 are fixedly installed on the bottom of the four connecting blocks 6.

[0024] The multi-angle inspection mechanism includes a movable plate 8, a X-ray machine weld defect detector 9, four fixed plates 10, four rollers 11, and a dual-axis motor 12. The movable plate 8 is disposed between two arc-shaped guide rails 7. The X-ray machine weld defect detector 9 is fixedly installed on the movable plate 8. The four fixed plates 10 are all fixedly installed on one side of the movable plate 8. The four rollers 11 are respectively installed on the four fixed plates 10 and are in contact with the two arc-shaped guide rails 7. The dual-axis motor 12 is fixedly installed on one side of the movable plate 8, and the two output shafts of the dual-axis motor 12 are respectively fixedly connected to the two corresponding rollers 11.

[0025] like Figure 1 and Figure 3As shown, four mounting rods 13 are fixedly installed on the L-shaped frame 2, and a disc 14 is fixedly installed at the bottom end of the four mounting rods 13. Four pull plates 15 are fixedly installed on the top of the rectangular plate 5, and support wheels 16 are rotatably installed on the four pull plates 15. All four support wheels 16 are in contact with the top of the disc 14.

[0026] By setting up the mounting rod 13, disc 14, pull plate 15 and support wheel 16, the weight of the rectangular plate 5 can be directly transferred to the L-shaped frame 2, reducing the weight borne by the drive motor 3 and the fixed shaft 4 and improving the stability of the drive motor 3 and the fixed shaft 4.

[0027] like Figure 2 and Figure 4 As shown, the arc-shaped guide rail 7 has an arc-shaped guide groove 17, the moving plate 8 is fixedly installed with an L-shaped guide rod 18, and a guide wheel 19 is fixedly installed on the L-shaped guide rod 18. The guide wheel 19 is located in the arc-shaped guide groove 17 and is adapted to the arc-shaped guide groove 17.

[0028] By setting the arc-shaped guide groove 17, the L-shaped guide rod 18 and the guide wheel 19, the movable plate 8 can be restricted and guided, and the movable plate 8 is restricted on the two arc-shaped guide rails 7 to prevent the movable plate 8 from falling.

[0029] like Figure 1 As shown, a plurality of support rods 20 are fixedly installed on the top of the base 1, and a placement platform 21 is fixedly installed on the top of the plurality of support rods 20;

[0030] By setting up support rod 20 and placement platform 21, it is easy to support and place forklift structural components so that the welds of forklift structural components can be inspected by X-ray weld defect detector 9.

[0031] like Figure 2 As shown, multiple connecting plates 22 are fixedly installed between the two arc-shaped guide rails 7, and the multiple connecting plates 22 are evenly distributed.

[0032] By setting the connecting plate 22, the two arc-shaped guide rails 7 can be connected, so that the two arc-shaped guide rails 7 form a whole, thereby improving stability.

[0033] like Figure 3 As shown, a circular hole is provided on the disk 14, and the fixed shaft 4 passes through the circular hole;

[0034] By setting a circular hole, it is easy for the fixed shaft 4 to pass through the disc 14 and connect to the rectangular plate 5, so that the drive motor 3 can drive the rectangular plate 5 to rotate through the fixed shaft 4.

[0035] The working principle of the sealing detection device for weld seams of mechanical parts provided by this utility model is as follows:

[0036] In use, the forklift structural component is placed on the placement platform 21, and the drive motor 3 is started. The drive motor 3 drives the fixed shaft 4 to rotate, the fixed shaft 4 drives the rectangular plate 5 to rotate, and the rectangular plate 5 drives the connecting block 6 and the arc-shaped guide rail 7 to rotate, thereby adjusting the orientation of the X-ray machine weld defect detector 9. The dual-axis motor 12 is started, and the dual-axis motor 12 drives the roller 11 to rotate, so that the moving plate 8 moves on the arc-shaped guide rail 7, thereby allowing the X-ray machine weld defect detector 9 to move to the other side after passing over the forklift structural component, realizing multi-angle weld inspection of the forklift structural component weld.

[0037] It should be noted that the device structure and accompanying drawings of this utility model mainly describe the principle of this utility model. In terms of the technical aspects of this design principle, the setting of the power mechanism, power supply system and control system of the device is not fully described. However, under the premise that those skilled in the art understand the principle of the above utility model, the specific details of its power mechanism, power supply system and control system can be clearly understood. The control method in the application document is automatic control through a controller. The control circuit of the controller can be implemented by those skilled in the art through simple programming.

[0038] All standard parts used can be purchased from the market, and can be customized according to the instructions and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the existing technology. The machinery, parts and equipment adopt conventional models in the existing technology, and the structure and principle of the components known to those skilled in the art can be known by those skilled in the art through technical manuals or conventional experimental methods.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made to these embodiments, or they can be used directly or indirectly, without departing from the principles and spirit of the present invention. In other related technical fields, the scope of the present invention is defined by the appended claims and their equivalents, and they are similarly included within the patent protection scope of the present invention.

Claims

1. A device for inspecting the tightness of weld seams in mechanical parts, characterized in that, include: A base, on which a rotating mechanism and a multi-angle detection mechanism are provided; The rotating mechanism includes an L-shaped frame, a drive motor, a fixed shaft, a rectangular plate, four connecting blocks, and two arc-shaped guide rails. The L-shaped frame is fixedly installed on the top of the base, the drive motor is fixedly installed on the L-shaped frame, the fixed shaft is fixedly installed on the output shaft of the drive motor, the rectangular plate is fixedly installed on the bottom of the fixed shaft, the four connecting blocks are all fixedly installed on the bottom of the rectangular plate, and the two arc-shaped guide rails are fixedly installed on the bottom of the four connecting blocks. The multi-angle inspection mechanism includes a moving plate, a X-ray machine weld defect detector, four fixed plates, four rollers, and a dual-axis motor. The moving plate is positioned between two arc-shaped guide rails. The X-ray machine weld defect detector is fixedly mounted on the moving plate. All four fixed plates are fixedly mounted on one side of the moving plate. The four rollers are respectively mounted on the four fixed plates and each roller contacts one of the two arc-shaped guide rails. The dual-axis motor is fixedly mounted on one side of the moving plate, and its two output shafts are fixedly connected to the corresponding two rollers.

2. The sealing detection device for weld seams of mechanical parts according to claim 1, characterized in that: Four mounting rods are fixedly installed on the L-shaped frame, and a disc is fixedly installed at the bottom of the four mounting rods. Four pull plates are fixedly installed on the top of the rectangular plate, and support wheels are rotatably installed on the four pull plates. All four support wheels are in contact with the top of the disc.

3. The sealing detection device for weld seams of mechanical parts according to claim 1, characterized in that: The arc-shaped guide rail has an arc-shaped guide groove, and an L-shaped guide rod is fixedly installed on the moving plate. A guide wheel is fixedly installed on the L-shaped guide rod, and the guide wheel is located in the arc-shaped guide groove and is adapted to the arc-shaped guide groove.

4. The sealing detection device for weld seams of mechanical parts according to claim 1, characterized in that: Multiple support rods are fixedly installed on the top of the base, and a placement platform is fixedly installed on the top of the multiple support rods.

5. The sealing detection device for weld seams of mechanical parts according to claim 1, characterized in that: Multiple connecting plates are fixedly installed between the two arc-shaped guide rails, and the multiple connecting plates are evenly distributed.

6. The sealing detection device for weld seams of mechanical parts according to claim 1, characterized in that: The disk has a circular hole, and the fixed shaft passes through the circular hole.