Honeycomb core tailor-welding quality detection device and use method thereof

Abstract

The invention relates to the technical field of welding quality detection, in particular to a honeycomb core tailor-welding quality detection device and a using method thereof. The invention discloses a honeycomb core tailor-welding quality detection device which comprises a base, a transverse moving block, a longitudinal moving block and a detection block. A lifting block is slidably connected into the transverse moving groove. The transverse moving block is connected to the lifting block in a sliding mode. A lifting electric push rod is fixedly connected between the lifting block and the transverse moving block; the welding quality of the honeycomb core is detected by extending the detection block into the honeycomb core, filling air into the air vent and observing whether the air pressure in the air vent is reduced or not, meanwhile, the connecting blocks are driven to move through the folding motor, the positions of the connecting blocks are independently adjusted, and therefore the distance between every two adjacent connecting blocks is adjusted. And the distance between every two adjacent connecting blocks is equal to the distance between hexagonal patterns of the honeycomb core, so that the tailor-welding quality detection can be carried out on the honeycomb cores of different specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of welding quality detection, and particularly relates to a honeycomb core welding quality detection device and a using method thereof. Background Art

[0002] A honeycomb core is a lightweight structural material with numerous regular hexagonal cells. It is usually made of metals (such as aluminum) or non-metals (such as paper, glass fiber, carbon fiber, etc.). The structural characteristics of the honeycomb core endow it with excellent properties. First of all, it has high specific strength and specific stiffness, that is, it can bear large loads under the condition of relatively light weight while maintaining good rigidity. This makes the honeycomb core widely used in the aerospace field in structural components such as aircraft wings and fuselages to reduce the weight of the aircraft and improve fuel efficiency. Secondly, the honeycomb core has good energy absorption characteristics and can effectively absorb impact energy. Therefore, it is used in anti-collision structures in the fields of automobiles and rail transit. The common production method of metal honeycomb cores is welding. The metal plate is repeatedly bent into continuous semi-hexagonal corrugations. The semi-hexagonal corrugations of the upper and lower metal plates are assembled into complete hexagons and then welded together. Multiple metal plates are repeatedly welded to form a honeycomb core. The honeycomb core made by welding needs to detect the welding quality. The number of welds of the welded honeycomb core is large, and manual detection is rather cumbersome, resulting in limitations.

[0003] Therefore, we propose a honeycomb core welding quality detection device and a using method thereof. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a honeycomb core welding quality detection device and a using method thereof, which overcome the deficiencies of the prior art and aim to solve the problems in the background art.

[0005] To achieve the above object, the present invention provides the following technical solution: A honeycomb core welding quality detection device, comprising: A base, a transverse moving block, a longitudinal moving block and a detection block; a transverse moving groove is provided on the base; a lifting block is slidably connected in the transverse moving groove; the transverse moving block is slidably connected to the lifting block; a lifting electric push rod is fixedly connected between the lifting block and the transverse moving block; a transverse moving motor is fixedly connected in the transverse moving groove; an output end of the transverse moving motor is fixedly connected with a lead screw that is in threaded cooperation with the lifting block; the longitudinal moving block is slidably connected to the transverse moving block; a longitudinal moving motor is fixedly connected to the transverse moving block; an output end of the longitudinal moving motor is fixedly connected with a lead screw that is in threaded cooperation with the longitudinal moving block; the detection block is installed on the longitudinal moving block; The detection block is fixedly connected with a sealing block and a vent pipe; the sealing block is provided with a vent hole; the vent pipe is connected with the vent hole; and the detection block is provided with an air pressure sensor.

[0006] Preferably, a closing groove is provided on the longitudinal moving block; a connecting block is slidably connected in the closing groove; a closing motor is fixedly connected in the closing groove; a worm is fixedly connected to the output end of the closing motor; and the connecting block is threadedly matched with the worm.

[0007] Preferably, the two detection blocks are symmetrically slidably connected to the connection block; and an electric push rod is fixedly connected between the connection block and the detection block.

[0008] Preferably, the air pressure sensor is fixedly connected in the vent.

[0009] The welding quality of the honeycomb core is detected by extending the detection block into the honeycomb core, injecting air into the vent, and observing whether the air pressure in the vent drops. At the same time, the connection block is driven to move by the closing motor, and the position of the connection block is adjusted separately, thereby adjusting the distance between two adjacent connection blocks, so that the distance between two adjacent connection blocks is equal to the distance between the hexagonal patterns of the honeycomb core, thereby being able to perform welding quality detection on honeycomb cores of different specifications.

[0010] Preferably, a spreading electric push rod is fixedly connected to the detection block; and a spreading block is fixedly connected to the other end of the spreading electric push rod.

[0011] Preferably, a telescopic block is slidably connected to the detection block; a pressure sensor is fixedly connected to the telescopic block, and a detection rod is slidably connected to the telescopic block; a detection spring is fixedly connected between the detection rod and the pressure sensor; a detection electric push rod is fixedly connected to the detection block; and the output end of the detection electric push rod is fixedly connected to the telescopic block.

[0012] Preferably, the outer side surfaces of the lower ends of the propping block and the sealing block are inclined.

[0013] By arranging a propping block on the detection block, the propping block pushes the honeycomb core to both sides. Therefore, when the air pressure sensor detects the honeycomb core, the honeycomb core can be bent. When the welding is not firm, the weld will fall off to prevent the occurrence of cold welding, thereby improving the detection effect. At the same time, a pressure sensor and a detection rod are arranged so that the detection rod is in contact with the weld and cooperates with the air pressure sensor to improve the accuracy of the detection result.

[0014] A method for using a honeycomb core welding quality detection device, the method is applicable to the above-mentioned honeycomb core welding quality detection device, and the steps of the method are as follows: S1. The horizontal movement motor and the vertical movement motor drive the detection block and the sealing block to move horizontally and vertically on the base, and the lifting electric push rod drives the detection block and the sealing block to move up and down, so that the detection block and the sealing block extend into the honeycomb core, and the sealing block contacts the weld of the honeycomb core; S2. The expanding electric push rod drives the expanding block to move, so that the expanding block pushes the honeycomb core to both sides. At the same time, the air pipe fills air into the air vent, increasing the air pressure in the air vent. When there is a welding defect in the weld of the honeycomb core, the air leaks out from the gap, and the air pressure decreases; S3. The detection rod contacts the weld, and the expanding block pushes the honeycomb core to detect whether the weld is poorly welded.

[0015] Advantages of the present invention: 1. In the present invention, by extending the detection block into the honeycomb core and filling air into the air vent to observe whether the air pressure in the air vent drops, the welding quality of the honeycomb core is detected. At the same time, the closing motor drives the connecting block to move, and the position of the connecting block is adjusted separately, so as to adjust the distance between two adjacent connecting blocks, making the distance between two adjacent connecting blocks equal to the distance between the hexagonal patterns of the honeycomb core, and thus the welding quality detection of honeycomb cores of different specifications can be carried out.

[0016] 2. In the present invention, by arranging the expanding block on the detection block, the expanding block pushes the honeycomb core to both sides. Therefore, when the air pressure sensor detects the honeycomb core, the honeycomb core can be bent. When the welding is not firm, the weld will fall off, preventing the occurrence of poor welding, thereby improving the detection effect. At the same time, a pressure sensor and a detection rod are arranged, so that the detection rod contacts the weld and cooperates with the air pressure sensor to improve the accuracy of the detection result. Description of the drawings

[0017] Figure 1 is a schematic structural diagram of a honeycomb core welding quality detection device of the present invention; Figure 2 is a schematic structural diagram of the connecting block, the detection block, the sealing block and the expanding block in the present invention; Figure 3 is a cross-sectional view of the detection block, the sealing block and the connecting block in the present invention; Figure 4 is Figure 3 a cross-sectional view of the detection block and the expanding block under the sectional view from A-A in Figure 5 is a position relationship diagram of the connecting block, the closing groove and the longitudinal moving block in the present invention.

[0018] In the figure: 1. Base; 11. Transverse moving block; 12. Longitudinal moving block; 13. Detection block; 14. Transverse moving groove; 15. Transverse moving motor; 16. Longitudinal moving motor; 2. Sealing block; 21. Vent pipe; 22. Vent port; 23. Pressure sensor; 3. Closing groove; 31. Connecting block; 32. Closing motor; 33. Connecting electric push rod; 34. Expanding electric push rod; 35. Expanding block; 4. Telescopic block; 41. Pressure sensor; 42. Detection rod; 43. Detection spring; 44. Detection electric push rod; 5. Lifting block. Specific implementation mode

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Embodiment 1: Refer to the attached drawings of the specification Figure 1 , 2 , 3, 4 and 5, a honeycomb core welding quality detection device, comprising: Base 1, transverse moving block 11, longitudinal moving block 12 and detection block 13; a transverse moving groove 14 is opened on the base 1; a lifting block 5 is slidably connected in the transverse moving groove 14; the transverse moving block 11 is slidably connected to the lifting block 5; a lifting electric push rod is fixedly connected between the lifting block 5 and the transverse moving block 11; a transverse moving motor 15 is fixedly connected in the transverse moving groove 14; the output end of the transverse moving motor 15 is fixedly connected with a lead screw that is in threaded cooperation with the lifting block 5; the longitudinal moving block 12 is slidably connected to the transverse moving block 11; a longitudinal moving motor 16 is fixedly connected to the transverse moving block 11; the output end of the longitudinal moving motor 16 is fixedly connected with a lead screw that is in threaded cooperation with the longitudinal moving block 12; the detection block 13 is installed on the longitudinal moving block 12; A sealing block 2 and a vent pipe 21 are fixedly connected to the detection block 13; a vent port 22 is opened on the sealing block 2; the vent pipe 21 is communicated with the vent port 22; a pressure sensor 23 is arranged on the detection block 13.

[0021] In the present invention, a closing groove 3 is opened on the longitudinal moving block 12; a connecting block 31 is slidably connected in the closing groove 3; a closing motor 32 is fixedly connected in the closing groove 3; the output end of the closing motor 32 is fixedly connected with a worm; the connecting block 31 is in threaded cooperation with the worm.

[0022] In the present invention, two detection blocks 13 are symmetrically slidably connected to the connecting block 31; a connecting electric push rod 33 is fixedly connected between the connecting block 31 and the detection block 13.

[0023] In the present invention, the air pressure sensor 23 is fixedly connected inside the ventilation port 22.

[0024] In the present invention, the ventilation pipe 21 is connected to a gas source (inflator). The staff places the honeycomb core after butt welding on the base 1. After adjusting the position of the honeycomb core, the lifting electric push rod drives the transverse moving block 11, the longitudinal moving block 12 and the detection block 13 downward, so that the two detection blocks 13 on the connecting block 31 move downward and extend into the honeycomb core. Subsequently, the connecting electric push rod 33 on the connecting block 31 pushes the detection block 13, so that the two detection blocks 13 on the connecting block 31 move away from each other, so that the two detection blocks 13 on the connecting block 31 approach the weld of the honeycomb core, and the sealing block 2 contacts the weld of the honeycomb core. The ventilation port 22 on the sealing block 2 is directly opposite the weld of the honeycomb core. Subsequently, air enters the ventilation port 22 from the ventilation pipe 21; when there are problems such as incomplete welding or uneven weld spots in the welding of the honeycomb core, the air in the ventilation port 22 will leak from the gap part, so that the air pressure sensor 23 detects that the air pressure in the ventilation port 22 decreases, and then detects that there are gaps in the honeycomb core and the welding quality is poor; after one place in the honeycomb core is detected, the detection block 13 moves upward out of the honeycomb core, and then drives by the transverse moving motor 15 and the longitudinal moving motor 16 to move to other positions of the honeycomb core for detection; When the sizes of the honeycomb cores are different, the distances between the hexagonal patterns on the honeycomb cores are also different; in the present invention, the closing motor 32 drives the corresponding worm, so that the connecting block 31 moves in the closing groove 3, so that the closing motor 32 can drive the corresponding connecting block 31 and the detection block 13 to move separately, so as to adjust the distance between two adjacent connecting blocks 31, so that the distance between the two connecting blocks 31 is the same as the distance between the hexagons on the honeycomb core. At the same time, the connecting electric push rod 33 pushes the detection block 13, so that the sealing block 2 on the detection block 13 fits the honeycomb core, so that the present invention can detect the welding quality of honeycomb cores of different sizes; The present invention detects the welding quality of the honeycomb core by extending the detection block 13 into the honeycomb core, filling air into the ventilation port 22 and observing whether the air pressure in the ventilation port 22 drops. At the same time, the closing motor 32 drives the connecting block 31 to move, and the position of the connecting block 31 is adjusted separately, so as to adjust the distance between two adjacent connecting blocks 31, so that the distance between two adjacent connecting blocks 31 is equal to the distance between the hexagonal patterns of the honeycomb core, and then the butt welding quality of honeycomb cores of different specifications can be detected.

[0025] Embodiment 2: On the basis of Embodiment 1, referring to the attached drawings of the specification Figure 1 、 2 、3, 4 and 5, in the present invention, a spreading electric push rod 34 is fixedly connected to the detection block 13; the other end of the spreading electric push rod 34 is fixedly connected to a spreading block 35.

[0026] In the present invention, a telescopic block 4 is slidably connected to the detection block 13; a pressure sensor 41 is fixedly connected to the telescopic block 4, and a detection rod 42 is slidably connected to the telescopic block 4; a detection spring 43 is fixedly connected between the detection rod 42 and the pressure sensor 41; a detection electric push rod 44 is fixedly connected to the detection block 13; and the output end of the detection electric push rod 44 is fixedly connected to the telescopic block 4.

[0027] In the present invention, the outer side surfaces of the lower ends of the expansion block 35 and the sealing block 2 are arranged to be inclined.

[0028] In the present invention, the two detection blocks 13 on the connecting block 31 extend into the honeycomb core. When the air pressure in the vent 22 is used for detection, the electric push rod 34 is stretched to push the stretching block 35, so that the stretching block 35 pushes the honeycomb core in the honeycomb core. After the sealing block 2 contacts the weld of the honeycomb core, the honeycomb core is pushed on both sides of the weld to detect whether the weld is firm. At the same time, the detection electric push rod 44 pushes the telescopic block 4, so that the detection rod 42 on the telescopic block 4 contacts the weld, and the pressure is transmitted to the pressure sensor 41 through the detection spring 43. When the weld is not firm, the weld is stretched and cracked, so that the detection rod 42 extends forward, so that the pressure on the pressure sensor 41 changes, which is combined with the air pressure in the vent 22, thereby improving the accuracy of detection. In the present invention, the outer side surfaces of the lower ends of the support block 35 and the sealing block 2 are inclined. When the size of the hexagon of the honeycomb core is the same as the size of the two detection blocks 13 and the sealing block 2, the inclined surfaces of the support block 35 and the sealing block 2 can guide the sealing block 2 into the honeycomb core, so that the sealing block 2 and the detection block 13 can smoothly enter the honeycomb core. The present invention arranges a propping block 35 on the detection block 13 so that the propping block 35 pushes the honeycomb core to both sides. Therefore, when the air pressure sensor 23 detects the honeycomb core, the honeycomb core can be bent. When the welding is not firm, the weld will fall off to prevent the occurrence of cold welding, thereby improving the detection effect. At the same time, a pressure sensor 41 and a detection rod 42 are arranged so that the detection rod 42 contacts the weld. The pressure sensor 41 and the detection rod 42 cooperate with the air pressure sensor 23 to detect the honeycomb core, thereby improving the accuracy of the detection results.

[0029] Embodiment 3: A method for using a honeycomb core welding quality inspection device, which is applicable to the above-mentioned honeycomb core welding quality inspection device, and the steps of the method are as follows: S1, the transverse moving motor 15 and the longitudinal moving motor 16 drive the detection block 13 and the sealing block 2 to move transversely and longitudinally on the base 1, and the lifting electric push rod drives the detection block 13 and the sealing block 2 to move up and down, so that the detection block 13 and the sealing block 2 extend into the honeycomb core, and the sealing block 2 contacts the weld of the honeycomb core; S2. The expansion electric push rod 34 drives the expansion block 35 to move, so that the expansion block 35 pushes the honeycomb core to both sides. At the same time, the ventilation pipe 21 fills air into the ventilation port 22, increasing the air pressure in the ventilation port 22. When there is a leak in the weld of the honeycomb core, the air leaks out from the gap and the air pressure decreases; S3. The detection rod 42 contacts the weld, and the expansion block 35 pushes the honeycomb core to detect whether the weld is poorly welded.

[0030] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed; the scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A honeycomb core welding quality detection device, characterized in that: Including: A base (1), a transverse moving block (11), a longitudinal moving block (12) and a detection block (13); a transverse moving groove (14) is formed on the base (1); a lifting block (5) is slidably connected in the transverse moving groove (14); the transverse moving block (11) is slidably connected to the lifting block (5); a lifting electric push rod is fixedly connected between the lifting block (5) and the transverse moving block (11); a transverse moving motor (15) is fixedly connected in the transverse moving groove (14); the longitudinal moving block (12) is slidably connected to the transverse moving block (11); a longitudinal moving motor (16) is fixedly connected to the transverse moving block (11); the detection block (13) is installed on the longitudinal moving block (12); the transverse moving motor (15) and the longitudinal moving motor (16) drive the corresponding lifting block (5) and longitudinal moving block (12) to move through a lead screw. A sealing block (2) and a ventilation pipe (21) are fixedly connected to the detection block (13); a ventilation port (22) is formed on the sealing block (2); the ventilation pipe (21) is communicated with the ventilation port (22); a pressure sensor (23) is arranged on the detection block (13).

2. The honeycomb core welding quality detection device according to claim 1, characterized in that: A closing groove (3) is formed on the longitudinal moving block (12); a connecting block (31) is slidably connected in the closing groove (3); a closing motor (32) is fixedly connected in the closing groove (3); a worm is fixedly connected to the output end of the closing motor (32); the connecting block (31) is in threaded cooperation with the worm.

3. The honeycomb core welding quality detection device according to claim 2, characterized in that: Two of the detection blocks (13) are symmetrically slidably connected to the connecting block (31); a connecting electric push rod (33) is fixedly connected between the connecting block (31) and the detection block (13).

4. A honeycomb core butt welding quality detection device according to claim 3, characterized in that: The pressure sensor (23) is fixedly connected in the ventilation port (22).

5. The honeycomb core welding quality detection device according to claim 4, characterized in that: A spreading electric push rod (34) is fixedly connected to the detection block (13); the other end of the spreading electric push rod (34) is fixedly connected to a spreading block (35).

6. The honeycomb core welding quality detection device according to claim 5, characterized in that: A telescopic block (4) is slidably connected to the detection block (13); a pressure sensor (41) is fixedly connected to the telescopic block (4), a detection rod (42) is slidably connected to the telescopic block (4); a detection spring (43) is fixedly connected between the detection rod (42) and the pressure sensor (41); a detection electric push rod (44) is fixedly connected to the detection block (13); the output end of the detection electric push rod (44) is fixedly connected to the telescopic block (4).

7. The honeycomb core butt welding quality detection device according to claim 6, wherein: The lower outer sides of the spreading block (35) and the sealing block (2) are inclined.

8. A method for using a honeycomb core welding quality detection device, which is applicable to the honeycomb core welding quality detection device described in any one of claims 1-7, characterized in that: The steps of this method are as follows: S1. The transverse moving motor (15) and the longitudinal moving motor (16) drive the detection block (13) and the sealing block (2) to move transversely and longitudinally on the base (1), and the lifting electric push rod drives the detection block (13) and the sealing block (2) to move up and down, so that the detection block (13) and the sealing block (2) extend into the honeycomb core, and the sealing block (2) contacts the weld of the honeycomb core. S2. The expansion electric push rod (34) is driven to drive the expansion block (35) to move, so that the expansion block (35) pushes the honeycomb core to both sides. At the same time, the air pipe (21) fills air into the air vent (22), increasing the air pressure in the air vent (22). When there is a welding defect in the honeycomb core weld, the air leaks out from the gap, and the air pressure decreases; S3. The detection rod (42) contacts the weld, and the expansion block (35) pushes the honeycomb core to detect whether the weld is poorly welded.

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