Honeycomb core welding quality detection device and use method thereof

Abstract

The present invention relates to the field of welding quality inspection technology, and in particular to a honeycomb core welding quality inspection device and a method for using the same; the honeycomb core welding quality inspection device of the present invention comprises: a base, a transverse moving block, a longitudinal moving block and a detection block; 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; the invention detects the welding quality of the honeycomb core by extending the detection block into the honeycomb core, injecting air into the vent, and observing whether the air pressure in the vent drops, and at the same time drives the connection block to move by a closing motor, and adjusts the position of the connection block separately, thereby adjusting the spacing between two adjacent connection blocks, so that the spacing between the two adjacent connection blocks is equal to the spacing between the hexagonal patterns of the honeycomb core, and thus can perform welding quality inspection on honeycomb cores of different specifications.

Description

Technical Field

[0001] The present invention relates to the technical field of welding quality detection, and in particular to a honeycomb core tailor-welding quality detection device and a use method thereof. Background Art

[0002] Honeycomb core is a lightweight structural material with numerous regular hexagonal cells. It is usually made of metal (such as aluminum) or non-metal (such as paper, glass fiber, carbon fiber, etc.). The structural characteristics of the honeycomb core give it excellent performance. First, it has high specific strength and specific stiffness, that is, it can withstand large loads while maintaining good rigidity at a low weight. This makes honeycomb cores widely used in aircraft wings, fuselages and other structural parts in the aerospace field to reduce aircraft weight and improve fuel efficiency. Secondly, honeycomb cores have good energy absorption properties and can effectively absorb impact energy. Therefore, they are used in anti-collision structures in the fields of automobiles, rail transportation, etc.

[0003] The common production method of metal honeycomb core is welding. The metal plate is repeatedly bent into a continuous semi-hexagonal corrugation. The semi-hexagonal corrugations of the upper and lower metal plates are assembled into a complete hexagonal shape and then welded together. Multiple metal plates are repeatedly welded to form a honeycomb core.

[0004] The honeycomb core made by tailor welding needs to be inspected for quality. The number of welds in the honeycomb core is large, and manual inspection is cumbersome, which leads to limitations.

[0005] To this end, we propose a honeycomb core welding quality detection device and a method for using the same. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the present invention provides a honeycomb core welding quality detection device and a method of using the same, which overcomes the shortcomings of the existing technology and aims to solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a honeycomb core welding quality detection device, comprising:

[0008] A base, a transverse moving block, a longitudinal moving block and a detection block; a transverse moving slot is provided on the base; a lifting block is slidably connected in the transverse moving slot; 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 slot; a screw rod is fixedly connected to the output end of the transverse moving motor and is threadedly matched with the lifting block; the longitudinal moving block is slidably connected to the transverse moving block; the transverse moving block is fixedly connected to the longitudinal moving motor; the output end of the longitudinal moving motor is fixedly connected to the screw rod and is threadedly matched with the longitudinal moving block; the detection block is mounted on the longitudinal moving block;

[0009] The detection block is fixedly connected with a sealing block and a vent pipe; the sealing block is provided with a vent; the vent pipe is communicated with the vent; and the detection block is provided with an air pressure sensor.

[0010] 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 engaged with the worm.

[0011] Preferably, the two detection blocks are symmetrically slidably connected to the connecting block; and an electric push rod is fixedly connected between the connecting block and the detection block.

[0012] Preferably, the air pressure sensor is fixedly connected in the vent.

[0013] The welding quality of the honeycomb core is detected by inserting 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 individually, thereby adjusting the distance between two adjacent connection blocks so that the distance between the 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.

[0014] Preferably, a spreading electric push rod is fixedly connected to the detection block; and the other end of the spreading electric push rod is fixedly connected to the spreading block.

[0015] 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.

[0016] Preferably, the outer side surfaces of the lower ends of the expansion block and the sealing block are arranged at an inclination.

[0017] By arranging a support block on the detection block, the support 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 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 contacts the weld and cooperates with the air pressure sensor to improve the accuracy of the detection results.

[0018] A method for using a honeycomb core welding quality inspection device is provided. The method is applicable to the above-mentioned honeycomb core welding quality inspection device. The steps of the method are as follows:

[0019] S1. The transverse movement motor and the longitudinal movement motor drive the detection block and the sealing block to move transversely and longitudinally 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;

[0020] S2. The electric push rod drives the expansion block to move, so that the expansion block pushes the honeycomb core to both sides. At the same time, the ventilation pipe injects air into the vent, so that the air pressure in the vent increases. When the honeycomb core weld leaks, air leaks from the gap and the air pressure decreases.

[0021] S3. The detection rod contacts the weld, and the support block pushes the honeycomb core to detect whether the weld is cold.

[0022] Beneficial effects of the present invention:

[0023] 1. The present invention detects the welding quality of the honeycomb core by inserting a 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 a closing motor, and the position of the connection block is adjusted individually, thereby adjusting the spacing between two adjacent connection blocks so that the spacing between the two adjacent connection blocks is equal to the spacing between the hexagonal patterns of the honeycomb core. This allows the welding quality of honeycomb cores of different specifications to be tested.

[0024] 2. The present invention provides a support block on the detection block so that the support 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 cold welding, thereby improving the detection effect. At the same time, a pressure sensor and a detection rod are provided so that the detection rod contacts the weld and cooperates with the air pressure sensor to improve the accuracy of the detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a honeycomb core welding quality inspection device of the present invention;

[0026] Figure 2 This is a schematic structural diagram of the connecting block, the detection block, the sealing block and the propping block in the present invention;

[0027] Figure 3 It is a cross-sectional view of the detection block, the sealing block and the connecting block in the present invention;

[0028] Figure 4 for Figure 3 Cross-sectional view of the detection block and the expansion block at the AA section view;

[0029] Figure 5 This is a positional relationship diagram of the connecting block, closing groove and longitudinal moving block in the present invention.

[0030] In the figure: 1. Base; 11. Lateral moving block; 12. Longitudinal moving block; 13. Detection block; 14. Lateral moving slot; 15. Lateral moving motor; 16. Longitudinal moving motor; 2. Sealing block; 21. Ventilation pipe; 22. Vent; 23. Air pressure sensor; 3. Closing slot; 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. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Example 1: Refer to the attached Figure 1 、 2 , 3, 4 and 5, a honeycomb core welding quality detection device, comprising:

[0033] Base 1, transverse moving block 11, longitudinal moving block 12 and detection block 13; a transverse moving groove 14 is provided 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 to a screw threadedly matched 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 to a screw threadedly matched with the longitudinal moving block 12; the detection block 13 is mounted on the longitudinal moving block 12;

[0034] The detection block 13 is fixedly connected with the sealing block 2 and the vent pipe 21 . The sealing block 2 is provided with a vent 22 . The vent pipe 21 and the vent 22 are in communication. The detection block 13 is provided with an air pressure sensor 23 .

[0035] In the present invention, a closing groove 3 is provided 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; and the connecting block 31 is threadedly engaged with the worm.

[0036] In the present invention, the two detection blocks 13 are symmetrically slidably connected to the connecting block 31 ; an electric push rod 33 is fixedly connected between the connecting block 31 and the detection block 13 .

[0037] In the present invention, the air pressure sensor 23 is fixedly connected in the vent 22 .

[0038] In the present invention, the ventilation pipe 21 is connected to the air source (inflator), and the staff places the welded honeycomb core on the base 1. After adjusting the position of the honeycomb core, the lifting electric push rod drives the lateral 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. Then, 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 in a direction away from each other, so that the two detection blocks 13 on the connecting block 31 are close to the weld of the honeycomb core, and the sealing block 2 is close to the weld of the honeycomb core. The weld seam of the honeycomb core is in contact with the air vent 22 on the sealing block 2, and the air then enters the air vent 22 from the air vent pipe 21. When the honeycomb core welding has a leak or uneven weld points, the air in the air vent 22 will leak from the gap, so that the air pressure sensor 23 detects a decrease in the air pressure in the air vent 22, and then detects that there is a gap in the honeycomb core and the welding quality is poor. After completing the inspection at one position in the honeycomb core, the inspection block 13 moves upward out of the honeycomb core and is then driven by the horizontal movement motor 15 and the vertical movement motor 16 to move to other positions of the honeycomb core for inspection.

[0039] When the honeycomb core is of different sizes, the spacing between the hexagonal patterns on the honeycomb core is also different. In the present invention, the closing motor 32 drives the corresponding worm to move the connecting block 31 in the closing groove 3, so that the closing motor 32 can independently drive the corresponding connecting block 31 and the detection block 13 to move, thereby adjusting the spacing between two adjacent connecting blocks 31 so that the spacing between the two connecting blocks 31 is the same as the spacing between the hexagons on the honeycomb core. At the same time, the detection block 13 is pushed by the connecting electric push rod 33 so that the sealing block 2 on the detection block 13 fits the honeycomb core. Therefore, the present invention can perform welding quality inspection on honeycomb cores of different sizes.

[0040] The present invention detects the welding quality of the honeycomb core by extending the detection block 13 into the honeycomb core, injecting air into the vent 22, and observing whether the air pressure in the vent 22 drops. At the same time, the connection block 31 is driven to move by the closing motor 32, and the position of the connection block 31 is adjusted individually, thereby adjusting the spacing between two adjacent connection blocks 31, so that the spacing between the two adjacent connection blocks 31 is equal to the spacing between the hexagonal patterns of the honeycomb core, thereby being able to perform welding quality inspection on honeycomb cores of different specifications.

[0041] Example 2: Based on Example 1, refer to the attached Figure 1 、 2, 3, 4 and 5, in the present invention, the detection block 13 is fixedly connected to a spreading electric push rod 34; the other end of the spreading electric push rod 34 is fixedly connected to a spreading block 35.

[0042] 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.

[0043] In the present invention, the outer side surfaces of the lower ends of the expansion block 35 and the sealing block 2 are arranged at an incline.

[0044] 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, causing the pressure on the pressure sensor 41 to change. Combined with the air pressure in the vent 22, the accuracy of the detection is improved.

[0045] In the present invention, the outer side surfaces of the lower ends of the expansion 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 expansion 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.

[0046] The present invention provides a support block 35 on the detection block 13 so that the support 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, preventing the occurrence of cold welding, thereby improving the detection effect. At the same time, a pressure sensor 41 and a detection rod 42 are provided 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.

[0047] Example 3: A method for using a honeycomb core welding quality inspection device. This method is applicable to the above-mentioned honeycomb core welding quality inspection device. The steps of this method are as follows:

[0048] S1, the transverse movement motor 15 and the longitudinal movement 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;

[0049] S2. The electric push rod 34 drives the opening block 35 to move, so that the opening block 35 pushes the honeycomb core to both sides. At the same time, the vent pipe 21 injects air into the vent 22, so that the air pressure in the vent 22 increases. When the honeycomb core weld is leaking, air leaks from the gap and the air pressure decreases.

[0050] S3, the detection rod 42 contacts the weld, the support block 35 pushes the honeycomb core, and detects whether the weld is cold-welded.

[0051] The basic principles, main features, and advantages of the present invention are shown and described above. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention as claimed. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A honeycomb core welding quality inspection device, characterized by: include: A base (1), a transverse moving block (11), a longitudinal moving block (12) and a detection block (13); a transverse moving groove (14) is provided 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 mounted on the longitudinal moving block (12); the transverse moving motor (15) and the longitudinal moving motor (16) drive the corresponding lifting block (5) and the longitudinal moving block (12) to move via a screw rod; The detection block (13) is fixedly connected to a sealing block (2) and a vent pipe (21); a vent hole (22) is provided on the sealing block (2); the vent pipe (21) and the vent hole (22) are in communication; and an air pressure sensor (23) is provided on the detection block (13); The longitudinal moving block (12) is provided with a closing groove (3); 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 threadably engaged with the worm; The two detection blocks (13) are symmetrically slidably connected to the connection block (31); a connecting electric push rod (33) is fixedly connected between the connection block (31) and the detection block (13); The air pressure sensor (23) is fixedly connected in the vent (22); The detection block (13) is fixedly connected to a spreading electric push rod (34); the other end of the spreading electric push rod (34) is fixedly connected to a spreading block (35); The detection block (13) is slidably connected to a telescopic block (4); 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); an output end of the detection electric push rod (44) is fixedly connected to the telescopic block (4); The outer side surfaces of the lower ends of the expansion block (35) and the sealing block (2) are arranged at an inclination.

2. A method for using a honeycomb core welding quality inspection device, the method being applicable to the honeycomb core welding quality inspection device described in claim 1, characterized in that: The steps of this method are as follows: S1, a transverse movement motor (15) and a longitudinal movement 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 electric push rod (34) drives the opening block (35) to move, so that the opening block (35) pushes the honeycomb core to both sides, and at the same time, the vent pipe (21) injects air into the vent (22), so that the air pressure in the vent (22) increases. When the honeycomb core weld is leaking, air leaks from the gap and the air pressure decreases; S3, the detection rod (42) contacts the weld, the support block (35) pushes the honeycomb core, and detects whether the weld is cold-welded.

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