Detection equipment and method thereof

Abstract

The invention belongs to the technical field of welding seam detection, particularly relates to detection equipment and a detection method, and aims to solve the problem that the detection effect of the existing automobile part welding seam detection equipment on internal corner welding seams located on parts is poor, the following scheme is provided, the detection equipment comprises a tool table, and the bottom of the tool table is fixedly connected with two symmetrical supports; the upper side of the tool table is fixedly connected with a hanging bracket, an ultrasonic probe is arranged outside the hanging bracket, two symmetrical clamps are arranged above the tool table, and the same angle adjusting module is arranged outside the clamps. According to the detection equipment and the method thereof disclosed by the invention, the welding seam on the internal corner of the automobile part can be quickly and conveniently detected, and the welding seam on the internal corner of the part can be completely exposed by adjusting the angle of the part, so that the ultrasonic probe can be effectively attached to the welding seam; the device can fully detect the quality of the welding seam, and the detection effect is improved while the detection precision of the welding seam is ensured.

Description

Technical Field

[0001] This invention relates to the field of weld inspection technology, and in particular to an inspection device and method thereof. Background Technology

[0002] Weld inspection is a key step in ensuring welding quality and safety. It is mainly divided into non-destructive testing and destructive testing. Commonly used non-destructive methods include visual inspection, penetrant testing, magnetic particle testing, ultrasonic testing, and radiographic testing. Among them, ultrasonic testing is sensitive to internal cracks, and radiographic testing provides intuitive results. The general process is preparation, implementation, evaluation, and reporting. The development trend is towards digital, intelligent, and automated testing.

[0003] Since welds may be located at the inside corners of some automotive parts, conventional weld inspection equipment cannot effectively detect these inside corner welds, leading to errors in the weld inspection results. This negatively impacts the accuracy of weld inspection and also poses potential risks to the use of these parts in automobiles. Summary of the Invention

[0004] This invention discloses a testing device and method, aiming to solve the technical problem in the background art that existing automotive parts weld testing devices have poor testing effects on internal corner welds located on parts.

[0005] The present invention proposes a testing device, including a tooling table. Two symmetrical supports are fixedly connected to the bottom of the tooling table. A hanger is fixedly connected to the upper side of the tooling table. An ultrasonic probe is mounted on the outside of the hanger. Two symmetrical clamps are mounted above the tooling table. An angle adjustment module is mounted on the outside of each clamp. The angle adjustment module includes two symmetrical annular tracks. Two connecting frames are fixedly connected to the outside of the two annular tracks. Each connecting frame has a circular opening on its outer side, and a lifting shaft is slidably connected to the inner wall of each circular opening. Two symmetrical movable blocks are arranged between the two annular tracks. The two clamps are located outside the two movable blocks, and the ultrasonic probes are located above the two clamps.

[0006] In a preferred embodiment, the exteriors of both movable blocks are slidably connected to the inner wall of the annular track. Two symmetrical arc-shaped synchronous plates are arranged between the two annular tracks, with the exteriors of each arc-shaped synchronous plate fixedly connected to the opposite side of the exterior of the same-side annular track. Each movable block has a circular hole, and a hydraulic rod movably connects to the inner wall of each circular hole. The output end of each hydraulic rod movably connects to the exterior of the clamp on the same side. A drive motor is fixedly connected to the side of each movable block away from the clamp, and the output end of each drive motor is connected to the exterior of the hydraulic rod movably on the same side via a coupling. A constraint frame is fixedly connected to the side of each movable block closer to the clamp, and a rotary motor is fixedly connected to the inner wall of each constraint frame. The output end of each rotary motor is connected to the inner wall of the constraint frame via a coupling. A transmission gear is connected via a coupling; rubber pads are fixedly connected to opposite sides of both clamps; an internal gear ring is fixedly connected to the outside of one of the annular tracks, and the transmission gear meshes with the internal gear ring; two symmetrical uprights are fixedly connected to the upper side of the tooling table, and two symmetrical sliding grooves are opened on the inner wall of each upright; the inner walls of the two sliding grooves on the same side are slidably connected to the same mounting plate; two symmetrical hydraulic rods are fixedly connected to the upper side of the tooling table, and connecting seats are fixedly connected to the output ends of the hydraulic rods; the connecting seats are fixedly connected to the opposite side of the outer side of the mounting plate on the same side, and slots are opened on the mounting plates; the inner walls of the slots are slidably connected to the outer side of the lifting shaft on the same side; receiving frames are provided on the outside of both lifting shafts. Each lifting shaft has a fixed connection to the outer side of the mounting plate on the same side, opposite to the outer side. A second inclined block is slidably connected to the outer side of each lifting shaft. The outer side of the second inclined block is movably connected to the inner wall of the receiving frame. Each receiving frame has an arc-shaped groove on its outer side, and an adjusting rod is slidably connected within the arc-shaped groove. The adjusting rod is fixedly connected to the outer side of the second inclined block on the same side. A first inclined block is fixedly connected to the outer side of each lifting shaft. The first inclined block and the second inclined block on the same side are symmetrical. The first inclined block is slidably connected to the inner wall of the receiving frame. A first locking gear is slidably connected to the outer side of both lifting shafts. The first locking gear is fixedly connected to the inner wall of the connecting frame on the opposite side. A second locking gear is fixedly connected to the outer side of each lifting shaft. The second locking gear is slidably connected to the outer side of the first locking gear on the opposite side. Both sides are snap-fitted together, and the outside of each lifting shaft is slidably connected to a guide frame. The outside of each guide frame is fixedly connected to the outside of the receiving frame on the same side. The outside of each of the two lifting shafts is fixedly connected to a contact plate, which is located on the side of the receiving frame away from the connecting frame. The outside of each lifting shaft is surrounded by a spring, and one end of each spring is fixedly connected to the outside of the contact plate on the same side, and the other end is fixedly connected to the outside of the guide frame on the same side. A groove is opened on the upper side of the hanger, and a rectangular frame is fixedly connected to the inner wall of the groove. A sliding sleeve is slidably connected to the inner wall of the rectangular frame. A linear motor is fixedly connected to the upper side of the hanger, and a transmission plate is fixedly connected to the output end of the linear motor. The side of the transmission plate away from the linear motor is fixedly connected to the outside of the sliding sleeve.A hydraulic rod three is fixedly connected to the inner wall of the sliding sleeve. A receiving cylinder is fixedly connected to the output end of the hydraulic rod three. The inner wall of the receiving cylinder is slidably connected to the outside of the ultrasonic probe. A return spring is fixedly connected to the top inner wall of the receiving cylinder, and the end of the return spring near the ultrasonic probe is fixedly connected to the upper side of the ultrasonic probe.

[0007] A detection method, using a detection device as described above, includes the following steps: Step 1: Place the car part to be inspected between the two clamps and use the clamps to clamp the part. Step 2: Based on the position of the weld on the accessory, use the angle adjustment module to adjust the angle of the accessory so that the weld is facing the ultrasonic probe. Step 3: Insert the ultrasonic probe into the component so that it can inspect the weld at the inside corner of the component.

[0008] As can be seen from the above, the testing equipment provided by the present invention can quickly and conveniently inspect the welds on the inside corners of automotive parts. By adjusting the angle of the parts, the welds on the inside corners of the parts can be fully exposed, allowing the ultrasonic probe to effectively fit onto the welds. This enables the device to fully inspect the quality of the welds, ensuring the accuracy of weld inspection while improving the inspection effect. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of a detection device proposed in this invention; Figure 2 This is a front view schematic diagram of the detection device proposed in this invention; Figure 3 This is a schematic diagram of the angle adjustment module structure of a detection device proposed in this invention; Figure 4 This is a schematic diagram of the lifting shaft structure of a detection device proposed in this invention; Figure 5 This is a schematic diagram of the receiving frame structure of a detection device proposed in this invention; Figure 6 This is a schematic diagram of the movable block structure of a detection device proposed in this invention; Figure 7 This is a schematic diagram of the rectangular frame structure of a detection device proposed in this invention.

[0010] In the diagram: 1. Tooling table; 2. Support; 3. Fixture; 4. Hanger; 5. Ultrasonic probe; 6. Angle adjustment module; 601. Circular track; 602. Stand; 603. Slide groove; 604. Mounting plate; 605. Hydraulic rod one; 606. Connecting seat; 607. Lifting shaft; 608. Connecting frame; 609. Receiving frame; 610. Inclined block one; 611. Inclined block two; 612. Adjusting rod; 613. Arc groove; 614. Guide frame; 615. Contact plate; 6 16. Spring 1; 617. Locking Gear 1; 618. Locking Gear 2; 619. Movable Block; 620. Hydraulic Rod 2; 621. Rubber Pad; 622. Arc-shaped Synchronous Plate; 623. Drive Motor; 624. Constraint Frame; 625. Rotating Motor; 626. Transmission Gear; 627. Internal Gear Ring; 628. Rectangular Frame; 629. Sliding Sleeve; 630. Linear Motor; 631. Transmission Plate; 632. Hydraulic Rod 3; 633. Receiving Cylinder; 634. Return Spring. Detailed Implementation

[0011] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0012] The testing equipment disclosed in this invention is mainly applied to scenarios where existing automotive parts weld testing equipment has poor testing effect on internal corner welds located on parts.

[0013] Reference Figures 1-7 A testing device includes a tooling table 1. Two symmetrical supports 2 are bolted to the bottom of the tooling table 1. A hanger 4 is bolted to the upper side of the tooling table 1. An ultrasonic probe 5 is mounted on the outside of the hanger 4. Two symmetrical clamps 3 are mounted above the tooling table 1. An angle adjustment module 6 is mounted on the outside of the clamps 3. The angle adjustment module 6 includes two symmetrical annular tracks 601. Two connecting frames 608 are bolted to the outside of the two annular tracks 601. Both connecting frames 608 have circular openings on their outer surfaces. A lifting shaft 607 is slidably connected to the inner wall of each circular opening. Two symmetrical movable blocks 619 are positioned between the two annular tracks 601. The two clamps 3 are located outside the two movable blocks 619, and the ultrasonic probes 5 are located above the two clamps 3.

[0014] Specifically, the device utilizes the angle adjustment module 6 to quickly and conveniently inspect the welds on the inside corners of automotive parts. By adjusting the angle of the parts, the welds on the inside corners can be fully exposed, allowing the ultrasonic probe 5 to effectively fit onto the welds. This enables the device to fully inspect the quality of the welds, ensuring the accuracy of weld inspection while improving the inspection effect.

[0015] Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7In a preferred embodiment, the outer sides of both movable blocks 619 are slidably connected to the inner wall of the annular track 601. Two symmetrical arc-shaped synchronous plates 622 are arranged between the two annular tracks 601. The outer sides of each arc-shaped synchronous plate 622 are bolted to the opposite side of the outer side of the same-side annular track 601. Each movable block 619 has a circular hole, and the inner wall of each hole is rotatably connected to a hydraulic rod 620 via a bearing. The output end of each hydraulic rod 620 is bolted to the outer side of the clamp 3 on the same side. A drive motor 623 is bolted to the side of each movable block 619 away from the clamp 3. The output ends of 23 are all connected to the outside of the hydraulic rod 620 on the same side via couplings. The movable block 619 is bolted to the side of the fixture 3 with a constraint frame 624. The inner wall of the constraint frame 624 is bolted to a rotary motor 625, and the output end of the rotary motor 625 is connected to a transmission gear 626 via a coupling. Rubber pads 621 are bolted to the opposite sides of the two fixtures 3. An internal gear ring 627 is bolted to the outside of one of the annular tracks 601. The transmission gear 626 meshes with the internal gear ring 627. Two symmetrical uprights 602 are bolted to the upper side of the tooling table 1. The inner wall of 602 has two symmetrical sliding grooves 603. The inner walls of the two sliding grooves 603 on the same side are slidably connected to the same mounting plate 604. The upper side of the tooling table 1 is bolted with two symmetrical hydraulic rods 605. The output ends of the hydraulic rods 605 are bolted to connecting seats 606. The connecting seats 606 are bolted to the opposite side of the outer side of the mounting plate 604 on the same side. The mounting plate 604 has a slot, and the inner wall of the slot is slidably connected to the outer side of the lifting shaft 607 on the same side. The outer side of the two lifting shafts 607 is provided with a receiving frame 609. The receiving frame 609 is connected to the mounting plate 604 on the same side. The outer sides of the lifting shaft 607 are all connected by bolts. The outer side of the lifting shaft 607 is slidably connected to the inclined block 611. The outer side of the inclined block 611 is rotatably connected to the inner wall of the receiving frame 609 by bearings. The outer side of the receiving frame 609 is provided with an arc groove 613. An adjusting rod 612 is slidably connected in the arc groove 613. The adjusting rod 612 is connected to the outer side of the inclined block 611 by bolts. The outer side of the lifting shaft 607 is connected to the inclined block 610 by bolts. The inclined block 610 and the inclined block 611 on the same side are symmetrical. The inclined block 610 is slidably connected to the inner wall of the receiving frame 609.Both lifting shafts 607 are slidably connected to the outside of a locking gear 617. The locking gear 617 is bolted to the side of the inner wall of the connecting frame 608 opposite to the outside of each lifting shaft 607. The locking gear 618 is bolted to the side of the lifting shaft 607 opposite to the locking gear 617. A guide frame 614 is slidably connected to the outside of each lifting shaft 607. The outside of the guide frame 614 is bolted to the outside of the receiving frame 609 on the same side. A contact plate 615 is bolted to the outside of each lifting shaft 607. The contact plate 615 is located on the side of the receiving frame 609 away from the connecting frame 608. A spring 616 surrounds the outside of each lifting shaft 607. One end of each spring 616 is bolted to the outside of the contact plate 615 on the same side, and the other end is bolted to the guide frame 614 on the same side. The external components are connected by bolts. A groove is cut into the upper side of the hanger 4, and a rectangular frame 628 is bolted to the inner wall of the groove. A sliding sleeve 629 is slidably connected to the inner wall of the rectangular frame 628. A linear motor 630 is bolted to the upper side of the hanger 4, and a transmission plate 631 is bolted to the output end of the linear motor 630. The side of the transmission plate 631 away from the linear motor 630 is bolted to the outside of the sliding sleeve 629. A hydraulic rod 632 is bolted to the inner wall of the sliding sleeve 629, and a receiving cylinder 633 is bolted to the output end of the hydraulic rod 632. The inner wall of the receiving cylinder 633 is slidably connected to the outside of the ultrasonic probe 5, and a return spring 634 is bolted to the top inner wall of the receiving cylinder 633. The end of the return spring 634 near the ultrasonic probe 5 is bolted to the upper side of the ultrasonic probe 5.

[0016] Specifically, after placing the automotive part to be tested between the two clamps 3, the hydraulic rod 620 is activated. The output end of the hydraulic rod 620 extends, causing the rubber pad 621 on the clamp 3 to clamp the part. Based on the position of the inner corner of the part, the rotary motor 625 is activated. The rotary motor 625 drives the transmission gear 626, which meshes with the internal gear ring 627, to rotate. This causes the rotary motor 625 to drive the movable block 619, connected by the arc-shaped synchronous plate 622, to slide on the circular track 601, thereby causing the part to move. The component rotates around the axis of the annular track 601. The drive motor 623 is activated, causing the hydraulic rod 620 to rotate, oriented the internal corner weld on the component outwards. The adjusting rod 612 is grasped and rotated, causing it to slide 180 degrees in the arc groove 613. This disengages the symmetrical state of the inclined block 610 and the inclined block 611. Under the elastic force of the spring 616, the inclined surface of the inclined block 610 faces the inclined block 611. The slide and finally fits against the inclined surface on the inclined block 611, causing the lifting shaft 607 to slide on the mounting plate 604 towards the circular track 601, disengaging the locking gear 618 from the locking gear 617 on the connecting frame 608, releasing the locking state, and allowing the circular track 601 connected to the connecting frame 608 to rotate. Rotating the circular track 601 so that the inner corner of the accessory faces the ultrasonic probe 5, the connecting frame 608 is locked again according to the above steps, the linear motor 630 is started, the linear motor 630 drives the sliding sleeve 629 connected to the transmission plate 631 to slide in the rectangular frame 628, allowing the ultrasonic probe 5 to move to the starting point of the weld. The hydraulic rod 632 is started, the output end of the hydraulic rod 632 extends, and the ultrasonic probe 5 is lightly pressed on the weld, the ultrasonic probe 5 is started, and the weld inspection begins. As the output end of the linear motor 630 moves, under the action of the return spring 634, the ultrasonic probe 5 continuously inspects the entire weld.

[0017] In specific application scenarios, the angle adjustment module 6 is mainly used for the angle adjustment stage in the angle adjustment process. Specifically, the angle adjustment module 6 utilizes the lifting shaft 607, connecting frame 608, circular track 601, movable block 619, and hydraulic rod 620 to adjust the angle of welds on automotive parts, thereby quickly and conveniently exposing welds located at the internal corners of the parts. This allows the ultrasonic probe 5 to fully contact the weld, improving the detection effect. Furthermore, the linear motor 630, sliding sleeve 629, hydraulic rod 632, receiving cylinder 633, and return spring 634 enable the device to adjust the angle of welds of different shapes and sizes during inspection. During alkaline testing of welds, the ultrasonic probe 5 can fully adhere to the weld, effectively improving the device's adaptability to different types of welds and enhancing its versatility. Through inclined block 610, inclined block 611, spring 616, locking gear 617, and locking gear 618, the device can efficiently adjust and lock the angle of the annular track 601. While ensuring rapid angle adjustment, it also improves the resistance of the annular track 601 to external forces, preventing the track from rotating or shifting due to external forces during testing. This ensures that the welds at the internal corners of the components always face the ultrasonic probe 5.

[0018] A detection method, using a detection device as described above, includes the following steps: Step 1: Place the car part to be inspected between the two clamps 3 and use the clamps 3 to clamp the part. Step 2: Based on the position of the weld on the component, use the angle adjustment module 6 to adjust the angle of the component so that the weld is facing the ultrasonic probe 5. (After placing the automotive component to be tested between the two clamps 3, activate the hydraulic rod 620. The output end of the hydraulic rod 620 extends, causing the rubber pad 621 on the clamp 3 to clamp the component. Based on the position of the internal corner on the component, activate the rotary motor 625. The rotary motor 625 drives the transmission gear 626 meshing with the internal gear ring 627 to rotate, causing the rotary motor 625 to drive the ultrasonic probe 5.) The movable block 619, connected by the arc-shaped synchronous plate 622, slides on the annular track 601, causing the accessory to rotate around the axis of the annular track 601. The drive motor 623 is activated, driving the hydraulic rod 620 to rotate, causing the internal corner weld on the accessory to face outwards. The adjusting rod 612 is grasped and rotated, causing it to slide 180 degrees in the arc-shaped groove 613, thus dissociating the inclined block 610 and inclined block 611 from their symmetrical state. Inclined block 610, under the elastic force of spring 616,... The inclined surface on inclined block 610 slides towards inclined block 611 and eventually fits against the inclined surface on inclined block 611, causing the lifting shaft 607 to slide on the mounting plate 604 towards the annular track 601. This disengages the locking gear 618 from the locking gear 617 on the connecting frame 608, releasing the lock and allowing the annular track 601 connected to the connecting frame 608 to rotate. Rotating the annular track 601 so that the inner corner of the accessory faces the ultrasonic probe 5, and then locking the connecting frame 608 again following the above steps. The linear motor 630 is started, which drives the sliding sleeve 629 connected to the transmission plate 631 to slide within the rectangular frame 628, allowing the ultrasonic probe 5 to move to the starting point of the weld. The hydraulic rod 632 is then activated, extending its output end and gently pressing the ultrasonic probe 5 onto the weld. The ultrasonic probe 5 is then activated, and the weld inspection begins. As the output end of the linear motor 630 moves, the ultrasonic probe 5 continuously inspects the entire weld under the action of the return spring 634. Step 3: Insert the ultrasonic probe 5 into the component so that the ultrasonic probe 5 can inspect the weld at the inside corner of the component.

[0019] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An inspection apparatus comprising a tool table (1), characterized in that The bottom of the tooling table (1) is fixedly connected with two symmetrical supports (2), the upper side of the tooling table (1) is fixedly connected with a hanging bracket (4), the outside of the hanging bracket (4) is provided with an ultrasonic probe (5), and the upper side of the tooling table (1) is provided with two symmetrical clamps (3), the outside of the clamp (3) is provided with the same angle adjusting module (6), the angle adjusting module (6) comprises two symmetrical annular tracks (601), the outside of the two annular tracks (601) is fixedly connected with two link frames (608), the outside of the two link frames (608) is provided with a circular port, the circular port inner wall is slidably connected with a lifting shaft (607), two symmetrical movable blocks (619) are arranged between the two annular tracks (601), the two clamps (3) are respectively located outside the two movable blocks (619), and the ultrasonic probe (5) is located above the two clamps (3).

2. The detection device of claim 1, wherein, The outside of the two movable blocks (619) is slidably connected with the inner wall of the annular track (601), two symmetrical arc-shaped synchronous plates (622) are arranged between the two annular tracks (601), the outside of the arc-shaped synchronous plate (622) is fixedly connected with the opposite side of the outside of the annular track (601) on the same side, a circular hole is formed in the movable block (619), the circular hole inner wall is movably connected with a hydraulic rod two (620), and the output end of the hydraulic rod two (620) is fixedly connected with the outside of the clamp (3) on the same side.

3. A detection device according to claim 2, wherein, The side, away from the clamp (3), of the two movable blocks (619) is fixedly connected with a driving motor (623), the output end of the driving motor (623) is connected with the outside of the hydraulic rod two (620) on the same side through a shaft coupling, the side, close to the clamp (3), of the movable block (619) is fixedly connected with a constraint frame (624), the inner wall of the constraint frame (624) is fixedly connected with a rotating motor (625), and the output end of the rotating motor (625) is connected with a transmission gear (626) through a shaft coupling.

4. The detection device of claim 3, wherein, The opposite side of the two clamps (3) is fixedly connected with a rubber pad (621), the outside of one annular track (601) is fixedly connected with an internal gear ring (627), the transmission gear (626) is engaged with the internal gear ring (627), the upper side of the tooling table (1) is fixedly connected with two symmetrical stands (602), the inner wall of the stand (602) is provided with two symmetrical sliding grooves (603), the inner wall of the two sliding grooves (603) on the same side is slidably connected with the same mounting plate (604), the upper side of the tooling table (1) is fixedly connected with two symmetrical hydraulic rods one (605), the output end of the hydraulic rod one (605) is fixedly connected with a connecting seat (606), the connecting seat (606) is fixedly connected with the opposite side of the outside of the mounting plate (604) on the same side, and the mounting plate (604) is provided with a slot, and the slot inner wall is slidably connected with the outside of the lifting shaft (607) on the same side.

5. A detection device according to claim 4, characterised in that The outer part of each of the two lifting shafts (607) is slidably connected with a second inclined block (611), the outer part of the second inclined block (611) is movably connected with the inner wall of the containing frame (609), the outer part of each of the containing frames (609) is provided with an arc-shaped groove (613), the arc-shaped groove (613) is slidably connected with an adjusting rod (612), the outer part of the adjusting rod (612) is fixedly connected with the opposite side of the second inclined block (611), and the outer part of each of the lifting shafts (607) is fixedly connected with a first inclined block (610), the first inclined block (610) is symmetric to the second inclined block (611) on the same side, and the first inclined block (610) is slidably connected with the inner wall of the containing frame (609).

6. A detection device according to claim 5, characterised in that The outer part of each of the two lifting shafts (607) is slidably connected with a locking gear one (617), the locking gear one (617) is fixedly connected with the inner wall of the connecting frame (608) on the opposite side, the outer part of each of the lifting shafts (607) is fixedly connected with a locking gear two (618), the locking gear two (618) is clamped on the opposite side of the locking gear one (617), and the outer part of each of the lifting shafts (607) is slidably connected with a guide frame (614), the outer part of the guide frame (614) is fixedly connected with the outer part of the containing frame (609) on the same side.

7. A detection device according to claim 6, characterised in that The outer part of each of the two lifting shafts (607) is fixedly connected with a contact plate (615), the contact plate (615) is located on the side of the containing frame (609) away from the connecting frame (608), the outer part of each of the lifting shafts (607) is surrounded by a spring one (616), one end of the spring one (616) is fixedly connected with the outer part of the contact plate (615) on the same side, and the other end is fixedly connected with the outer part of the guide frame (614) on the same side.

8. A detection device according to claim 7, characterised in that The upper side of the hanger (4) is provided with a cutting groove, the inner wall of the cutting groove is fixedly connected with a rectangular frame (628), the inner wall of the rectangular frame (628) is slidably connected with a sliding sleeve (629), the upper side of the hanger (4) is fixedly connected with a linear motor (630), the output end of the linear motor (630) is fixedly connected with a transmission plate (631), and the side of the transmission plate (631) away from the linear motor (630) is fixedly connected with the outer part of the sliding sleeve (629).

9. A detection device according to claim 8, characterised in that The inner wall of the sliding sleeve (629) is fixedly connected with a hydraulic rod three (632), the output end of the hydraulic rod three (632) is fixedly connected with a containing cylinder (633), the inner wall of the containing cylinder (633) is slidably connected with the outer part of the ultrasonic probe (5), and the top inner wall of the containing cylinder (633) is fixedly connected with a return spring (634), one end of the return spring (634) close to the ultrasonic probe (5) is fixedly connected with the upper side of the ultrasonic probe (5).

10. A detection method using a detection device according to claim 9, characterized in that, The method comprises the following steps: Step one, place the automobile parts to be detected between the two clamps (3), and clamp the parts by using the clamps (3); Step two, according to the position of the weld on the fitting, the angle of the fitting is adjusted using the angle adjustment module (6), so that the weld is directed towards the ultrasonic probe (5); Step three, the ultrasonic probe (5) is inserted into the fitting, so that the ultrasonic probe (5) detects the weld at the inside corner position on the fitting.

Images