New energy automobile die casting defect detection equipment

Abstract

The invention relates to the technical field of automobile die casting defect detection, and particularly provides new energy automobile die casting defect detection equipment which comprises a rack, a bearing seat, a material hopper, a discharging bearing mechanism and a middle material receiving mechanism. Through cooperation of the material hopper, the discharging bearing mechanism and the middle material receiving mechanism, the die castings are automatically transferred from the discharging bearing mechanism to be placed on the corresponding bearing seats when the conveying belt intermittently stops, so that the function of automatic feeding detection of the die castings is achieved, the feeding convenience and efficiency are greatly improved, and the labor intensity of workers is reduced. And when the castings are automatically fed, the middle receiving mechanism can also shake the material hopper when moving upwards to prevent the die castings from being clamped in the material hopper and guide the die castings to be stably placed on the bearing seat when moving downwards to prevent the die castings from falling off and being damaged, so that the feeding and detecting efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of automotive die-casting defect detection technology, and specifically proposes a defect detection device for new energy vehicle die-casting parts. Background Technology

[0002] Internal defects (porosity, shrinkage, inclusions, etc.) in die-cast parts of new energy vehicles (such as steering system components, motor housings, etc.) have a significant impact on structural strength and safety. Therefore, it is necessary to conduct defect detection. Among them, ultrasonic testing has become the mainstream method due to its advantages such as high efficiency, non-destructive testing, and quantitative analysis.

[0003] When performing ultrasonic testing on internal defects of die-cast parts (cylindrical steering system components), the die-cast parts are placed manually on a support on a conveyor belt, and then the conveyor belt transports the die-cast parts to the testing station for ultrasonic testing.

[0004] This method of loading and testing is not only inefficient and requires continuous operation, which is time-consuming and labor-intensive, but also requires manual placement of multiple die-cast parts on the workbench before placing them one by one into the corresponding conveyor position for testing, which greatly reduces the efficiency of loading and testing die-cast parts. Summary of the Invention

[0005] In view of the above problems, embodiments of the present invention provide a defect detection device for die-cast parts of new energy vehicles to solve the technical problems in related technologies.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a defect detection device for die-cast parts of new energy vehicles, including a frame, on which an intermittently driven belt conveyor, a material hopper, and a detection mechanism are mounted. The material hopper is located above the belt conveyor and is funnel-shaped, used to collect the castings. The belt conveyor is existing technology and intermittently transports the die-cast parts. The conveyor belt of the belt conveyor is provided with uniformly arranged support seats, and the support seats are provided with rectangular grooves in the middle of their length direction.

[0007] The lower end of the material hopper is equipped with a feeding support mechanism, and a middle receiving mechanism is slidably installed at the lower end of the feeding support mechanism. The feeding support mechanism includes a fixed cover located at the lower end of the material hopper and connected to it. One side of the inner wall of the fixed cover along its width direction is provided with a shaking auxiliary feeding part, and the lower end face of the fixed cover is also provided with a material clamping part. The middle receiving mechanism includes a receiving cover slidably connected to the lower end of the fixed cover through a lifting drive source (such as an electric slider). The upper and lower ends of the receiving cover are respectively provided with a lifting drive part and a material supporting part. When the receiving cover moves upward, it unlocks the material clamping part and drives the shaking auxiliary feeding part to push the die-casting part inside the fixed cover to shake.

[0008] In one possible implementation, the testing mechanism is an existing device, including a support frame mounted on a rack, the support frame having a clamping part, a coupling agent coating part, and an ultrasonic testing instrument.

[0009] In one possible implementation, the shaking-assisted feeding part includes a mounting groove on the side wall of the fixed cover, an arc-shaped support is slidably connected in the mounting groove, the arc-shaped support is used to support the die casting, and a T-shaped rod is installed on the side wall of the arc-shaped support, the vertical section of the T-shaped rod slidingly through the lower end of the fixed cover.

[0010] In one possible implementation, the material clamping part includes two inclined storage slots on both sides of the inner wall of the fixing cover arranged along its width direction. The two storage slots are arranged in an inverted V-shape. A material support component is slidably connected in the storage slot. The material support component moves adaptively in the storage slot. The side wall of the fixing cover is provided with a locking component to lock the material support component in the storage slot.

[0011] In one possible implementation, the support assembly disposed within the storage slot includes a movable plate, a support roller, and a return spring. The movable plate is slidably connected within the storage slot and is connected to the storage slot via the return spring. The support roller is rotatably connected to the side of the movable plate away from the return spring.

[0012] In one possible implementation, the locking assembly includes a locking hole on both sides of a movable plate located in a storage slot, arranged along its length. A spring groove corresponding to the locking hole is provided on the fixed cover. A locking rod is slidably connected to the spring groove. A compression spring is installed between the locking rod and the spring groove. An L-shaped rod is installed after the locking rod passes through the fixed cover. A roller is installed at the end of the L-shaped rod.

[0013] In one possible implementation, the lifting drive unit includes a top plate mounted on the outer wall of the receiving hood, a wedge block hinged to the top plate, and a limiting block mounted on the side wall of the top plate to limit the lower end face of the wedge block, the wedge block being used to push the L-shaped rod.

[0014] In one possible implementation, the material support part includes two inclined storage slots on both sides of the inner wall of the receiving cover arranged along its width direction. The two storage slots are arranged in an inverted V-shape. A material support component is also slidably connected in the storage slot. A triangular groove is provided on the side wall of the storage slot. A release locking component that penetrates the receiving cover is installed on the lower end face of the triangular groove. The release locking component is used to lock the material support component in the storage slot. The material support component installed in the storage slot is structurally the same as the material support component installed in the first storage slot.

[0015] In one possible implementation, the release locking assembly includes a lifting guide groove opened on the lower end face of the triangular groove, a bottom plate with its lower end penetrating through the receiving cover is slidably connected in the lifting guide groove, an ear plate is installed on the side wall of the movable plate in the storage groove, the bottom plate and the ear plate are horizontally slidably connected, and the receiving cover is provided with an adaptive locking member that locks the bottom plate after it is pressed against the corresponding support seat.

[0016] In one possible implementation, the adaptive locking component includes a storage slot on the side wall of the lifting guide groove, an insert plate slidably installed in the storage slot, a return spring installed between the storage slot and the insert plate, an insertion hole on the abutment plate, connecting rods installed at both ends of the insert plate along its length, guide rollers rotatably connected to the sides of the two connecting rods that are close to each other, and guide rails corresponding to and cooperating with the guide rollers installed on the outer wall of the fixed cover, a guide groove is opened on the side of the guide rail close to the corresponding guide roller, and the upper half and lower half of the guide groove are arc-shaped transition surfaces.

[0017] The above-mentioned one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. The defect detection equipment for die castings of new energy vehicles designed in this invention, through the cooperation of a material hopper, a feeding support mechanism and a middle receiving mechanism, automatically transfers the castings from the feeding support mechanism to the corresponding support seats when the conveyor belt stops intermittently, thereby realizing the function of automatic feeding and detection of castings, greatly improving the convenience and efficiency of casting feeding, and when automatically feeding castings, the middle receiving mechanism can also move upward to shake the material hopper to avoid the castings getting stuck in the material hopper, and move downward to guide the castings to be stably placed on the support seats to prevent the castings from falling and being damaged, thereby greatly improving the feeding and detection efficiency of die castings.

[0018] 2. This invention utilizes the upward movement of the receiving cover in the central receiving mechanism to drive the locking part to unlock and the driving vibration-assisted unloading part to push the casting inside the fixed cover to vibrate. During the downward movement of the receiving cover, when the material support part contacts the top of the corresponding support seat, the lower end of the receiving cover opens, and the die-casting part falls directly onto the support seat. After the receiving cover moves up a certain distance, the material support part automatically closes the lower end of the receiving cover. This achieves the integrated function of vibrating the unloading support mechanism and the die-casting part in the material hopper, as well as stabilizing the downward movement of the die-casting part, thereby improving the convenience of loading. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention.

[0021] Figure 2 This is a three-dimensional structural diagram of the material hopper, the feeding support mechanism, and the central receiving mechanism of the present invention.

[0022] Figure 3 This is the present invention. Figure 2 A magnified view of part A.

[0023] Figure 4 This is a top sectional view of the material support part and locking component of the present invention.

[0024] Figure 5 This is a top sectional view of the clipping part and the locking assembly of the present invention.

[0025] Figure 6 This is the present invention. Figure 2 Main sectional view.

[0026] Figure 7 This is the present invention. Figure 6 A magnified view of part B.

[0027] Figure label:

[0028] 1. Frame; 2. Conveyor belt; 20. Support seat; 21. Rectangular groove; 3. Detection mechanism; 30. Support frame; 31. Clamping part; 32. Coupling agent coating part; 33. Ultrasonic detector; 4. Material hopper; 5. Discharge support mechanism; 50. Fixing cover; 51. Vibration-assisted discharge part; 510. Mounting slot; 511. Arc-shaped support; 512. T-shaped rod; 52. Material clamping part; 520. Storage slot one; 521. Locking assembly; 530. Spring groove; 531. Locking rod; 532. Compression spring; 533. 6. L-shaped rod; 6. Middle receiving mechanism; 60. Receiving cover; 61. Lifting drive unit; 610. Top plate; 611. Wedge block; 612. Limiting block; 62. Material support unit; 620. Second storage slot; 621. Locking assembly; 630. Lifting guide groove; 631. Support plate; 632. Ear plate; 640. Insert plate; 641. Return spring; 642. Connecting rod; 643. Guide roller; 644. Guide rail; 645. Guide groove; 80. Moving plate; 81. Support roller; 82. Return spring; 7. Die casting part. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] See Figure 1 A defect detection device for die-cast parts of new energy vehicles includes a frame 1, on which an intermittently driven belt conveyor, a material hopper 4, and a detection mechanism 3 are mounted. The material hopper 4 is located above the belt conveyor and is funnel-shaped, used to collect the die-cast parts 7. The belt conveyor is existing technology and intermittently transports the die-cast parts 7. The conveyor belt 2 of the belt conveyor is provided with uniformly arranged support seats 20, and the support seats 20 are provided with rectangular grooves 21 in the middle of their length direction.

[0032] See Figure 1 , Figure 2 and Figure 6 The lower end of the material hopper 4 is equipped with a feeding support mechanism 5, and a middle receiving mechanism 6 is slidably installed at the lower end of the feeding support mechanism 5. The feeding support mechanism 5 includes a fixed cover 50 located at the lower end of the material hopper 4 and connected thereto. One side of the inner wall of the fixed cover 50 along its width direction is provided with a shaking auxiliary feeding part 51, and the lower end face of the fixed cover 50 is also provided with a material clamping part 52. The middle receiving mechanism 6 includes a receiving cover 60 slidably connected to the lower end of the fixed cover 50 by a lifting drive source (such as an electric slider). The upper and lower ends of the receiving cover 60 are respectively provided with a lifting drive part 61 and a material support part 62. When the receiving cover 60 moves upward, it unlocks the material clamping part 52 and drives the shaking auxiliary feeding part 51 to push the die-casting part 7 inside the fixed cover 50 to shake.

[0033] Multiple die-cast parts 7 are placed in the material hopper 4. The funnel-shaped structure of the material hopper 4 causes the die-cast parts 7 to be distributed in an inverted triangular shape, so that the die-cast parts 7 can be discharged sequentially. In the initial state, there is a certain distance between the receiving cover 60 and the fixed cover 50. At this time, the material support part 62 closes the lower end of the receiving cover 60, and the material clamping part 52 at the lower end of the fixed cover 50 is unlocked. The die-cast parts 7 at the lower end of the inner wall of the material hopper 4 fall sequentially down into the fixed cover 50. Inside the receiving cover 60, there is a die-cast part 7 at the lower end of both the receiving cover 60 and the fixing cover 50. The die-cast part 7 on the lower side of the inner wall of the fixing cover 50 is prepared for the next time it falls into the receiving cover 60. Then the receiving cover 60 continues to move upward until it is in close contact with the lower end of the fixing cover 50. At this time, the receiving cover 60 pushes the clamping part 52 to lock and closes the lower port of the fixing cover 50, and supports and limits the die-cast part 7 at the lower end of the fixing cover 50 to prevent the die-cast part 7 inside the fixing cover 50 from falling when the receiving cover 60 moves downward.

[0034] When the conveyor belt 2 stops intermittently, the lifting drive source drives the receiving cover 60 to move downward. When the material support part 62 contacts the top of the corresponding support seat 20, the lower end of the receiving cover 60 gradually opens, and the die-cast part 7 falls onto the support seat 20, thus realizing the function of placing the die-cast part 7 in the receiving cover 60 on the support seat 20. After that, the receiving cover 60 moves upward. After a certain distance, the material support part 62 locks and closes the lower end of the receiving cover 60. The upward movement of the receiving cover 60 drives the jamming part 52 to unlock, so that the die-cast part 7 in the material hopper 4 and the fixed cover 50 moves downward in sequence. The die-cast part 7 located on the lower side in the fixed cover 50 falls into the receiving cover 60. At this time, the receiving cover 60 also pushes the shaking auxiliary unloading part 51 to shake the die-cast part 7 in the fixed cover 50 and the material hopper 4 to prevent two adjacent die-cast parts 7 from getting stuck in the fixed cover 50 and being unable to move downward, causing the problem of material jamming and affecting the detection of the die-cast part 7.

[0035] When the die-cast part 7 falls into the receiving cover 60, repeat the above steps to make the receiving cover 60 and the lower end of the fixing cover 50 fit tightly together and continue working.

[0036] See Figure 1 The detection mechanism 3 is an existing device, including a support frame 30 mounted on the frame 1. The support frame 30 is equipped with a clamping part 31, a coupling agent coating part 32, and an ultrasonic detector 33. The ultrasonic detector 33 mainly performs detection based on an ultrasonic sensor. Its main principle is as follows: the probe set in the ultrasonic detector 33 emits ultrasonic waves into the die casting. When the ultrasonic waves propagate inside the die casting 7, they will generate reflected echoes when they encounter defects such as pores and shrinkage. The ultrasonic sensor receives these echo signals. The ultrasonic detector 33 locates the defect depth based on the echo time difference and judges the size of the defect by the amplitude. At the same time, before detection, the coupling agent coating part 32 coats the surface of the die casting 7 with coupling agent to eliminate air and ensure effective introduction of ultrasonic waves. Combined with the rotation of the die casting 7, non-destructive and comprehensive scanning detection of internal defects of the die casting is achieved.

[0037] During operation, when the conveyor belt 2 intermittently transports the die-cast part 7 to the area below the support frame 30, the clamping part 31 clamps the die-cast part 7 and drives the die-cast part 7 to rotate. When the die-cast part 7 rotates, the coupling agent coating part 32 applies coupling agent to the part of the die-cast part 7 corresponding to the rectangular groove 21 of the support seat 20. The ultrasonic detector 33 performs defect detection on the die-cast part 7.

[0038] See Figure 1 and Figure 6 The vibrating auxiliary unloading part 51 includes an installation groove 510 opened on the side wall of the fixed cover 50. An arc-shaped support 511 is slidably connected in the installation groove 510. The arc-shaped support 511 is used to support the die-cast part 7. A T-shaped rod 512 is installed on the side wall of the arc-shaped support 511. The vertical section of the T-shaped rod 512 slides through the lower end of the fixed cover 50.

[0039] When the receiving cover 60 moves upward and comes into contact with the T-shaped rod 512, the receiving cover 60 pushes the T-shaped rod 512 and the arc-shaped support 511 to move upward. The arc-shaped support 511 pushes the fixed cover 50 and the die-casting parts 7 in the material hopper 4 to move, thereby preventing two adjacent die-casting parts 7 from getting stuck in the fixed cover 50 or the material hopper 4, affecting the feeding of the die-casting parts 7. When the receiving cover 60 moves downward, the arc-shaped support 511 moves downward automatically under its own weight and the weight of the die-casting parts 7, causing the die-casting parts 7 in the fixed cover 50 and the material hopper 4 to shake, thus preventing the die-casting parts 7 from getting stuck in the fixed cover 50 and the material hopper 4.

[0040] See Figure 2 , Figure 6 and Figure 7 The material clamping part 52 includes two inclined storage slots 520 on both sides of the inner wall of the fixing cover 50 arranged along its width direction. The two storage slots 520 are arranged in an inverted V-shape. A support component is slidably connected in the storage slot 520. The support component moves adaptively in the storage slot 520. The side wall of the fixing cover 50 is provided with a locking component 521 for locking the support component in the storage slot 520.

[0041] See Figure 7 The support assembly provided in the storage slot 520 includes a movable plate 80, a support roller 81, and a return spring 82. The movable plate 80 is slidably connected in the storage slot 520 and is connected to the storage slot 520 through the return spring 82. The support roller 81 is rotatably connected to the side of the movable plate 80 away from the return spring 82.

[0042] During operation, the two movable plates 80 on the fixed cover 50 support the die-cast part 7 in an inverted V-shape. The locking assembly 521 locks the movable plates 80 in the receiving groove 520. As the receiving cover 60 moves upward, the lifting drive unit 61 pushes the locking assembly 521 to unlock the movable plates 80. Under the weight of itself and the other die-cast parts 7, the die-cast part 7 presses and pushes the supporting rollers 81 on both sides, causing the movable plates 80 in the receiving groove 520 to move along the receiving groove 520. The movable plates 80 compress the return spring 82 connected to them and retract. Meanwhile, the die-cast part 7 automatically falls into the receiving cover 60 under the action of gravity. When the next die-cast part 7 falls between the two support rollers 81, the moving plate 80 automatically resets under the elastic force of the return spring 82, so that the support rollers 81 move to the bottom of the die-cast part 7 in the fixed cover 50. As the receiving cover 60 continues to move upward, the lifting drive part 61 disengages from the locking assembly 521, and the locking assembly 521 locks the moving plate 80 again, so that the moving plate 80 and the support rollers 81 on the receiving slot 520 can stably support the die-cast part 7 in the fixed cover 50.

[0043] See Figure 2 , Figure 3 and Figure 5 The locking assembly 521 includes a movable plate 80 located in the storage groove 520 with locking holes on both sides along its length. The fixed cover 50 has a spring groove 530 corresponding to the locking hole. A locking rod 531 is slidably connected to the spring groove 530. A compression spring 532 is installed between the locking rod 531 and the spring groove 530. After the locking rod 531 passes through the fixed cover 50, an L-shaped rod 533 is installed. A roller is installed at the end of the L-shaped rod 533.

[0044] See Figure 2 and Figure 3 The lifting drive unit 61 includes a top plate 610 mounted on the outer wall of the receiving cover 60. A wedge block 611 is hinged on the top plate 610. A limiting block 612 is mounted on the side wall of the top plate 610 to limit the lower end face of the wedge block 611. The wedge block 611 is used to push the L-shaped rod 533.

[0045] During operation, as the receiving cover 60 moves upward, it drives the top plate 610 and the wedge block 611 to move upward. When the wedge block 611 contacts the roller, the wedge block 611 moves upward, pushing the roller and driving the L-shaped rod 533 and the locking rod 531 to move. This causes the locking rod 531 to disengage from the locking hole and compress the compression spring 532, thereby unlocking the moving plate 80 in the receiving slot 520. Under its own gravity, the die-cast part 7 in the fixed cover 50 automatically squeezes the moving plate 80 in the receiving slot 520 and falls downward. When the next die-cast part 7 lands at the lower end of the fixed cover 50 and abuts against the top of the die-cast part 7 in the receiving cover 60, the moving plate 80 in the receiving slot 520 resets under the elastic force of the return spring 82, closing the opening of the fixed cover 50 again and supporting the die-cast part 7.

[0046] As the receiving cover 60 continues to move upward, the wedge block 611 disengages from the roller. At this time, the L-shaped rod 533 and the locking rod 531 are reset under the elastic force of the compression spring 532. The locking rod 531 is inserted into the locking hole to lock the moving plate 80 on the fixed cover 50, so that the clamping part 52 can stably support the die-cast part 7 on the lower side of the fixed cover 50.

[0047] See Figure 6 and Figure 7The material support part 62 includes two inclined storage slots 620 on both sides of the inner wall of the receiving cover 60 arranged along its width direction. The two storage slots 620 are arranged in an inverted V-shape. The material support component is also slidably connected in the storage slot 620. The side wall of the storage slot 620 is provided with a triangular groove. The lower end face of the triangular groove is equipped with a release locking component 621 that penetrates the receiving cover 60. The release locking component 621 is used to lock the material support component in the storage slot 620. The material support component installed in the storage slot 620 has the same structure as the material support component installed in the first storage slot 520.

[0048] When the material receiving hood 60 is closed by the material support components in the two receiving slots 620, the disengaging locking component 621 locks the movable plate 80 in the receiving slot 620. As the receiving hood 60 moves downward, the disengaging locking component 621 gradually unlocks the movable plate 80 in the receiving slot 620. When the movable plate 80 in the receiving slot 620 is completely unlocked, the lower end of the receiving hood 60 is close to the top of the support 20. At this time, the die-cast part 7 in the receiving hood 60 is squeezed by its own gravity and falls onto the movable plate 80 in the receiving slot 620 and onto the support 20, thereby realizing the function of automatically transferring and feeding the die-cast part 7.

[0049] Then the receiving cover 60 moves upward. When the support roller 81 on the receiving trough 2 620 disengages from the die-cast part 7 on the support seat 20, the support roller 81 on the receiving trough 2 620 automatically extends out of the receiving trough 2 620. At the same time, it disengages from the locking component 621 and gradually locks the moving plate 80 in the receiving trough 2 620 during the upward movement of the receiving cover 60, so that the supporting component in the receiving cover 60 can support the next die-cast part 7.

[0050] See Figure 6 and Figure 7 The release locking component 621 includes a lifting guide groove 630 opened on the lower end face of the triangular groove. A bottom plate 631 with its lower end penetrating through the receiving cover 60 is slidably connected in the lifting guide groove 630. An ear plate 632 is installed on the side wall of the movable plate 80 in the storage groove 620. The bottom plate 631 and the ear plate 632 are horizontally slidably connected. The receiving cover 60 is provided with an adaptive locking member that locks the bottom plate 631 after it is pressed against the corresponding support seat 20.

[0051] See Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7The adaptive locking component includes a storage slot on the side wall of the lifting guide groove 630, an insert plate 640 is slidably installed in the storage slot, a return spring 641 is installed between the storage slot and the insert plate 640, an insertion hole is provided on the abutment plate 631, and connecting rods 642 are installed at both ends of the insert plate 640 along its length direction. Guide rollers 643 are rotatably connected to the side of the two connecting rods 642 that are close to each other. The outer wall of the fixed cover 50 is equipped with guide rails 644 that correspond one-to-one with the guide rollers 643 and cooperate with them. A guide groove 645 is provided on the side of the guide rail 644 that is close to the corresponding guide roller 643. The upper half and the lower half of the guide groove 645 are arc-shaped transition surfaces.

[0052] When the material receiving part 62 closes the lower end of the receiving cover 60, the insert plate 640 is inserted into the insertion hole under the elastic force of the return spring 641. When the receiving cover 60 moves the die-cast part 7 down towards the support seat 20, the guide roller 643 moves along the guide groove 645. As the guide roller 643 moves along the arc transition surface of the guide groove 645, it gradually pushes the insert plate 640 out of the insertion hole. When the receiving cover 60 approaches the corresponding support seat 20, the insert plate 640 disengages from the insertion hole. The die-cast part 7 in the receiving cover 60 squeezes the moving plate 80 on the receiving groove 620 and falls onto the support seat 20, thereby realizing the function of automatically placing the die-cast part 7 on the support seat 20 when it moves down. While the moving plate 80 is squeezed and moves, it drives the abutment plate 631 to move upward along the lifting guide groove 630.

[0053] Then the receiving cover 60 moves upward. When the support roller 81 on the receiving groove 620 disengages from the die-cast part 7 on the support seat 20, the support roller 81 on the receiving groove 620 automatically extends out of the receiving groove 620, the moving plate 80 resets, and when the guide roller 643 moves along the arc transition surface of the guide groove 645, the reset spring 641 drives the insert plate 640 to move towards the insertion hole until the insert plate 640 is inserted into the insertion hole, thereby locking the moving plate 80 in the receiving groove 620 so that the material support assembly in the receiving cover 60 can support the next die-cast part 7.

[0054] See Figures 1-7In practice, multiple die-cast parts 7 are placed in the material hopper 4. The funnel-shaped structure of the material hopper 4 causes the die-cast parts 7 to be distributed in an inverted triangular shape within the material hopper 4, so that the die-cast parts 7 can be discharged sequentially. Initially, there is a certain distance between the receiving cover 60 and the fixed cover 50. At this time, the material support part 62 closes the lower end of the receiving cover 60, and the material clamping part 52 at the lower end of the fixed cover 50 is unlocked. The die-cast parts 7 at the lower end of the inner wall of the material hopper 4 fall sequentially down into the fixed cover. 50. Inside the receiving cover 60, there is a die-cast part 7 at the lower end of both the receiving cover 60 and the fixing cover 50. The die-cast part 7 on the lower side of the inner wall of the fixing cover 50 is prepared to fall into the receiving cover 60 next time. Then the receiving cover 60 moves up until it is in close contact with the lower end of the fixing cover 50. At this time, the receiving cover 60 pushes the clamping part 52 to lock and closes the lower opening of the fixing cover 50, and supports and limits the die-cast part 7 at the lower end of the fixing cover 50 to prevent the die-cast part 7 in the fixing cover 50 from falling off when the receiving cover 60 moves down.

[0055] When the conveyor belt 2 stops intermittently, the lifting drive source drives the receiving cover 60 to move down. When the material support part 62 contacts the top of the corresponding support seat 20, the lower end of the receiving cover 60 is gradually opened, and the die-cast part 7 falls on the support seat 20, thereby realizing the function of placing the die-cast part 7 in the unloading support mechanism 5 on the support seat 20.

[0056] Then, when the conveyor belt 2 intermittently transports the die-casting part 7 to the area below the support frame 30, the clamping part 31 clamps the die-casting part 7 and drives the die-casting part 7 to rotate. When the die-casting part 7 rotates, the coupling agent coating part 32 applies coupling agent to the part of the die-casting part 7 corresponding to the rectangular groove 21, and the ultrasonic detector 33 performs defect detection on the die-casting part 7.

[0057] In the description of this invention, it should be understood that the terms "length", "width", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," "installed," and "connected" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A defect detection device for die-cast parts of new energy vehicles, comprising a frame, on which an intermittently driven belt conveyor and a detection mechanism are mounted, characterized in that, The conveyor belt of the belt conveyor is provided with evenly arranged support seats, and the middle of the support seats along its length is provided with a rectangular groove. The material hopper, located on the frame and above the conveyor belt, is funnel-shaped and used to collect die-cast parts; The material feeding support mechanism is located at the lower end of the material hopper, including a fixed cover located at the lower end of the material hopper and connected thereto. One side of the inner wall of the fixed cover is provided with a shaking auxiliary feeding part, and the lower end face of the fixed cover is also provided with a material clamping part. The middle receiving mechanism is slidably mounted on the lower end surface of the fixed cover. It includes a receiving cover that is slidably connected to the lower end of the fixed cover via a lifting drive source. The upper and lower ends of the receiving cover are respectively provided with a lifting drive part and a material support part. When the receiving cover moves upward, the drive locking part unlocks and the drive shaking auxiliary unloading part pushes the die-casting part inside the fixed cover to shake. When the conveyor belt stops intermittently, the lifting drive source drives the receiving cover to move down. When the material support part contacts the top of the corresponding support seat, the lower end of the receiving cover opens, and the die-cast part falls directly onto the support seat. After the receiving cover moves up a certain distance, the material support part automatically closes the lower end of the receiving cover.

2. The defect detection equipment for die-cast parts of new energy vehicles according to claim 1, characterized in that: The vibration-assisted unloading part includes an installation groove opened in the side wall of the fixed cover. An arc-shaped support is slidably connected in the installation groove. The arc-shaped support is used to support the casting. A T-shaped rod is installed on the side wall of the arc-shaped support. The vertical section of the T-shaped rod slides through the lower end of the fixed cover.

3. The defect detection equipment for die-cast parts of new energy vehicles according to claim 1, characterized in that: The material clamping part includes a storage slot 1 on both sides of the inner wall of the fixing cover arranged along its width direction. The two storage slot 1 are arranged in an inverted V-shape. A material support component is slidably connected in the storage slot 1. The material support component moves adaptively in the storage slot 1. The side wall of the fixing cover is provided with a locking component to lock the material support component in the storage slot 1.

4. A defect detection device for die-cast parts of new energy vehicles according to claim 3, characterized in that: The storage tray assembly includes a movable plate, a support roller, and a return spring. The movable plate is slidably connected to the storage tray and is connected to the storage tray via the return spring. The support roller is rotatably connected to the side of the movable plate away from the return spring.

5. A defect detection device for die-cast parts of new energy vehicles according to claim 4, characterized in that: The material support part includes two storage slots on both sides of the inner wall of the receiving cover arranged along its width direction. The two storage slots are arranged in an inverted V-shape. The material support component is also slidably connected in the storage slot. The side wall of the storage slot is provided with a triangular groove. The lower end face of the triangular groove is equipped with a locking component that penetrates the receiving cover. The locking component is used to lock the material support component that is placed in the storage slot. The support component in the second storage slot has the same structure as the support component in the first storage slot.

6. A defect detection device for die-cast parts of new energy vehicles according to claim 4, characterized in that: The locking assembly includes a movable plate located in the storage slot with locking holes on both sides along its length. A spring groove corresponding to the locking hole is provided on the fixed cover. A locking rod is slidably connected to the spring groove. A compression spring is installed between the locking rod and the spring groove. An L-shaped rod is installed after the locking rod passes through the fixed cover. A roller is installed at the end of the L-shaped rod.

7. A defect detection device for die-cast parts of new energy vehicles according to claim 5, characterized in that: The release locking assembly includes a lifting guide groove opened on the lower end face of the triangular groove, a bottom plate with its lower end penetrating through the receiving cover is slidably connected in the lifting guide groove, an ear plate is installed on the side wall of the movable plate in the storage groove, the bottom plate and the ear plate are horizontally slidably connected, and the receiving cover is provided with an adaptive locking component that locks the bottom plate after it is pressed against the corresponding support seat.

8. A defect detection device for die-cast parts of new energy vehicles according to claim 6, characterized in that: The lifting drive unit includes a top plate mounted on the outer wall of the receiving hood, a wedge block hinged to the top plate, and a limiting block installed on the side wall of the top plate to limit the lower end face of the wedge block. The wedge block is used to push the L-shaped rod.

9. A defect detection device for die-cast parts of new energy vehicles according to claim 7, characterized in that: The adaptive locking component includes a storage slot on the side wall of the lifting guide groove, an insert plate slidably installed in the storage slot, a return spring installed between the storage slot and the insert plate, an insertion hole on the abutment plate, connecting rods installed at both ends of the insert plate along its length, and guide rollers rotatably connected to the side of the two connecting rods that are close to each other. The outer wall of the fixed cover is equipped with guide rails that correspond to and cooperate with the guide rollers, and a guide groove is opened on the side of the guide rail that is close to the corresponding guide roller.

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