An automatic inspection equipment for the appearance of die castings

Abstract

This invention provides an automated inspection device for the appearance of die-cast parts, comprising a frame on which are mounted a material transfer mechanism, robotic arms, a positioning mechanism, a clamping mechanism, a vision inspection device, a placement table, a tray transfer mechanism, and a defective product placement table. The material transfer mechanism is symmetrically arranged at both ends of the frame, and the robotic arms are symmetrically arranged at both ends of the frame, corresponding to the transfer mechanism. The positioning mechanism, vision inspection device, and placement table are arranged side-by-side from left to right on the frame, positioned between the two robotic arms. The clamping mechanism is mounted on the frame, and the tray transfer mechanism is located behind the clamping mechanism. The defective product placement table is located on both sides of the placement table and is used to place die-cast parts that fail inspection. This invention provides fully automated inspection of the appearance of die-cast parts, offering high accuracy, safety, reliability, and efficiency, significantly reducing production costs and improving overall production efficiency.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and specifically to an automated testing equipment for the appearance of die-cast parts. Background Technology

[0002] Visual inspection of die castings is a crucial step in the die casting production process. Currently, visual inspection of die castings is mostly done manually, using the naked eye and individual inspection equipment to inspect each surface of the die casting. This inspection method requires a lot of manpower, and the accuracy of visual inspection is inconsistent and the inspection efficiency is relatively low, which can easily affect the overall production efficiency and cause significant economic losses. Summary of the Invention

[0003] This invention provides an automated inspection device for the appearance of die-cast parts. It can automatically inspect the appearance of die-cast parts with high accuracy, safety and reliability, and high efficiency, which greatly reduces production costs and improves overall production efficiency.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] An automated inspection device for the appearance of die-cast parts includes a frame, on which are mounted a material transfer mechanism, a robot arm, a positioning mechanism, a clamping mechanism, a vision inspection device, a placement table, a material tray transfer mechanism, and a defective product display table.

[0006] The material transfer mechanism is symmetrically arranged at both ends of the frame. The material transfer mechanism at the left end is used to place and transfer the material tray containing the die casting to be tested to the position where the robot arm picks up the die casting. The material transfer mechanism at the right end is used to move the material tray filled with qualified die castings from the position where the robot arm places the die castings to the designated position.

[0007] The robotic arms are symmetrically arranged at both ends of the frame and correspond to the transfer mechanism. The robotic arm at the left end is used to pick up the die castings to be inspected from the transfer mechanism and place them on the positioning mechanism, and to pick up the empty material trays from the transfer mechanism and place them on the material tray transfer mechanism. The robotic arm at the right end is used to pick up the empty material trays from the material tray transfer mechanism and place them on the transfer mechanism, and to pick up the die castings that have been inspected and passed the test and place them on the empty material trays on the transfer mechanism. The defective die castings that have failed the test are picked up and placed on the defective product display table.

[0008] The positioning mechanism, vision inspection device, and placement platform are arranged side by side on the frame from left to right and between the two robotic arms. The positioning mechanism is used to perform secondary positioning on the die casting to be inspected placed by the robotic arms. The vision inspection device is used to inspect each surface of the die casting that needs to be inspected. The placement platform is used to place the die casting after it has been inspected by the vision inspection device, so that it can be picked up by the robotic arms.

[0009] The clamping mechanism is mounted on the frame and is used to transfer the die castings to be inspected from the positioning mechanism to the vision inspection device for inspection, and to transfer the inspected die castings from the vision inspection device to the placement table. The material tray transfer mechanism is located behind the clamping mechanism and is used to transfer the empty material tray after loading from the left end to the right end of the frame for the robot arm on the right end to pick up and use. The defective product display table is located on both sides of the placement table and is used to place the unqualified die castings after inspection.

[0010] Preferably, the visual inspection device includes a rotating inspection mechanism, a front and back inspection mechanism, and a side wall inspection mechanism arranged side by side on the frame from left to right. The rotating inspection mechanism is located to the side of the positioning mechanism and is used to inspect the head and tail ends of the die casting. There are two sets of both the front and back inspection mechanism and the side wall inspection mechanism, and they are arranged side by side in an alternating manner. The front and back inspection mechanism on the left is used to inspect the front of the die casting, the front and back inspection mechanism on the right is used to inspect the back of the die casting, the side wall inspection mechanism on the left is used to inspect the two sides of the die casting, and the side wall inspection mechanism on the right is used to inspect the inner side wall of the die casting.

[0011] Preferably, the material transfer mechanism includes a material placement rack, a material transfer rack, a conveyor motor, a conveyor belt, a lifting connecting plate, a lifting linear module, a lifting platform, and a guide plate. The material placement rack is disposed on the side of the frame, the material transfer rack is disposed inside the frame and extends upward, the conveyor motor and the conveyor belt are both disposed on the material transfer rack, and the conveyor belt is at the same horizontal height as the material placement rack and is connected to the output end of the conveyor motor. The lifting connecting plate is disposed on the frame, the lifting linear module is disposed on the lifting connecting plate, the lifting platform is disposed on the lifting linear module, and the guide plate is disposed on the material transfer rack.

[0012] Preferably, the robotic arm includes a base, an arm, and a suction cup gripper assembly. The base is mounted on a frame, the arm is mounted on the base, and the suction cup gripper assembly is mounted on the arm for gripping die-cast parts.

[0013] Preferably, the positioning mechanism includes a positioning support frame, a positioning cylinder, a positioning turntable, a positioning platform, a positioning groove with a built-in spring, and a positioning block. The positioning support frame is mounted on the machine frame, the positioning cylinder is mounted on the positioning support frame, the positioning turntable is mounted on the output end of the positioning cylinder and the outer edge of the positioning turntable is wavy, the positioning platform is mounted on the top of the positioning support frame, the positioning groove is mounted on the top of the positioning support frame and is located around the positioning platform, and the positioning block is mounted on the positioning groove with its lower end abutting against the positioning turntable. The positioning cylinder drives the positioning turntable to rotate. When the lower end of the positioning block abuts against the crest of the outer edge of the positioning turntable, the positioning block moves outward along the positioning groove and spreads outward. When the lower end of the positioning block abuts against the trough of the outer edge of the positioning turntable, the positioning block moves inward along the positioning groove and moves closer together to position the die-cast part placed on the positioning platform.

[0014] Preferably, the clamping mechanism includes a clamping guide rail frame, a clamping linear module, a clamping moving plate, a clamping lifting cylinder, a clamping lifting plate, and a clamping cylinder gripper assembly. The clamping guide rail frame is mounted on the machine frame, the clamping linear module is mounted on the clamping guide rail frame, the clamping moving plate is mounted on the clamping linear module and can move along the clamping guide rail frame, several clamping lifting cylinders are mounted on the clamping moving plate and correspond to the positioning mechanism, rotation detection mechanism, front and back detection mechanism, side wall detection mechanism, and placement platform, the clamping lifting plate is mounted on the clamping lifting cylinder, and the clamping cylinder gripper assembly is mounted on the clamping lifting plate. The clamping lifting cylinder drives the clamping cylinder gripper assembly to move up and down to grip the die-casting part, and the clamping linear module moves laterally to drive the clamping cylinder gripper assembly to place the die-casting part to the designated position.

[0015] Preferably, the rotating detection mechanism includes a rotating support frame, a rotating motor, a rotating table, a rotating positioning component, and a rotating detection lens. The rotating support frame is mounted on a frame, the rotating motor is mounted inside the rotating support frame, the rotating table is mounted on top of the rotating support frame and connected to the output end of the rotating motor, the rotating positioning component is mounted inside the rotating support frame and connected to the output end of the rotating motor, and is used to sense and position the original orientation of the rotating table. The rotating detection lens is located on one side of the rotating support frame and corresponds to the rotating table.

[0016] Preferably, the front and back inspection mechanism includes a front and back inspection base with guide rails, a front and back adjustment motor, a front and back moving component, a front and back rotation motor, a front and back inspection table, a front and back limiting cylinder, a front and back limiting component, a front and back positioning assembly, and a front and back inspection lens. The front and back inspection base is mounted on a frame, the front and back moving component is mounted on the top of the front and back inspection base, the front and back adjustment motor is mounted on the lower part of the front and back inspection base and connected to the front and back moving component, for driving the front and back moving component to move along the front and back inspection base, and the front and back inspection table is rotatably mounted on the front and back moving component. A back-rotating motor is mounted on one end of the front-back moving component and connected to the front-back inspection platform to drive the front-back inspection platform to rotate. The front-back limiting cylinder and the front-back limiting component are symmetrically arranged on the front-back inspection platform. The output end of the front-back limiting cylinder is connected to the front-back limiting component to drive the front-back limiting component to limit the die-casting part. The front-back positioning component is mounted on one end of the front-back inspection platform to sense and position the original orientation of the front-back inspection platform. The front-back inspection lens is mounted on one side of the front-back inspection base and corresponds to the front-back inspection platform to inspect the die-casting part on the front-back inspection platform.

[0017] Preferably, the side wall detection mechanism includes a side detection seat with guide rails, a side adjustment motor, a side moving component, a side rotation motor, a side detection table, a side limiting cylinder, a side limiting component, a side positioning assembly, a side support component, a side lifting cylinder, a side support platform, and a side detection lens. The side detection seat is mounted on a frame, the side moving component is mounted on the side detection seat, the side adjustment motor is located at the lower part of the side detection seat and connected to the side moving component to drive the side moving component to move, the side detection table is movably mounted on the side moving component, and the side rotation motor is located at one end of the side moving component and connected to the side detection table to drive the side detection table to rotate. The side limiting cylinder and the side limiting component are symmetrically arranged on the side inspection platform. The output end of the side limiting cylinder is connected to the side limiting component and is used to drive the side limiting component to limit the die casting. The side positioning component is arranged at one end of the side inspection platform and is used to sense and position the original state and position of the side inspection platform. The side support component is arranged on the frame and below the side inspection platform. The side lifting cylinder is arranged on the side support component. The side support platform is arranged on the output end of the side lifting cylinder and is used to assist the side inspection platform in positioning the die casting. The side inspection lens is arranged on one side of the side inspection seat and corresponds to the side inspection platform and is used to inspect the die casting on the side inspection platform.

[0018] Preferably, the material tray transfer mechanism includes a transfer frame, a transfer guide rail, a transfer motor, a transfer driven wheel assembly, a transfer transmission belt, and a transfer tray. The transfer frame is mounted on a machine frame, the transfer guide rail is mounted on the transfer frame, the transfer motor and the transfer driven wheel assembly are respectively mounted at both ends of the transfer frame, the transfer transmission belt is mounted on the transfer motor and the transfer driven wheel assembly, and the transfer tray is mounted on the transfer guide rail and connected to the transfer transmission belt.

[0019] Compared with the prior art, the beneficial effects of the present invention are: (1) By setting a material transfer mechanism, the die castings to be inspected and the qualified die castings can be automatically output to the designated position without manual intervention, resulting in high work efficiency; (2) By setting a positioning mechanism, the die castings to be inspected can be positioned before entering the inspection, so that the required inspection surfaces can be inspected more accurately after entering and exiting the inspection; (3) By setting a vision inspection device, high-precision automated inspection can be carried out, which can finely inspect each surface that needs to be inspected, replacing manual visual inspection, which is safe and reliable, and ensures product quality and production efficiency; (4) By setting a material tray transfer mechanism, the empty material tray can be automatically transferred to the subsequent tray loading station in conjunction with the robot, so that it is not necessary for manual removal and transportation of the empty tray to the tray loading station after the material is loaded, thus improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the material transfer mechanism of the present invention;

[0023] Figure 4 This is a schematic diagram of the robotic arm of the present invention;

[0024] Figure 5 This is a schematic diagram of the positioning mechanism of the present invention;

[0025] Figure 6 This is a schematic diagram of the positioning turntable of the present invention;

[0026] Figure 7 This is a schematic diagram of the clamping mechanism of the present invention;

[0027] Figure 8 This is a schematic diagram of the rotating detection mechanism of the present invention;

[0028] Figure 9 This is a schematic diagram of the front and back detection mechanism of the present invention;

[0029] Figure 10 This is a schematic diagram of the side wall detection mechanism of the present invention;

[0030] Figure 11 This is a schematic diagram of the material tray transfer mechanism of the present invention. Detailed Implementation

[0031] 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.

[0032] It should be noted that when a component / part is referred to as being "set on" another component / part, it can be directly set on the other component / part or there may be an intervening component / part. When a component / part is referred to as being "connected / linked" to another component / part, it can be directly connected / linked to the other component / part or there may be an intervening component / part. The term "connected / linked" as used herein can include electrical and / or mechanical physical connections / links. The term "including / comprises" as used herein means the presence of a feature, step, or component / part, but does not exclude the presence or addition of one or more other features, steps, or components / parts. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Positioning components generally include positioning plates and sensors for locating the initial position and state.

[0033] Please see Figure 1-11 As shown, an automated inspection device for the appearance of die-cast parts includes a frame 1. On the frame 1 are a material transfer mechanism 2, a robot arm 3, a positioning mechanism 4, a clamping mechanism 5, a vision inspection device 6, a placement table 8, a tray transfer mechanism 7, and a defective product placement table 9. The material transfer mechanism 2 is symmetrically arranged at both ends of the frame 1. The material transfer mechanism 2 at the left end is used to place and transfer a tray containing die-cast parts to be inspected to the position where the robot arm 3 picks up the die-cast parts. The material transfer mechanism 2 at the right end is used to move a tray full of qualified die-cast parts from the position where the robot arm 3 places the die-cast parts to a designated position.

[0034] Robotic arms 3 are symmetrically arranged at both ends of the frame 1 and correspond to the transfer mechanism 2. The robotic arm 3 at the left end is used to pick up the die castings to be inspected from the transfer mechanism 2 and place them on the positioning mechanism 4, and to pick up the empty material trays from the transfer mechanism 2 and place them on the material tray transfer mechanism 7. The robotic arm 3 at the right end is used to pick up the empty material trays from the material tray transfer mechanism 7 and place them on the transfer mechanism 2, and to pick up the die castings that have been inspected and passed the test from the placement table 8 and place them on the empty material trays on the transfer mechanism 2. Defective die castings that have failed the test are picked up and placed on the defective product display table 9.

[0035] Positioning mechanism 4, vision inspection device 6, and placement table 8 are arranged side by side on the frame 1 from left to right and between the two robotic arms 3. Positioning mechanism 4 is used to perform secondary positioning on the die casting to be inspected placed by robotic arms 3. Vision inspection device 6 is used to inspect each surface of the die casting that needs to be inspected. Placement table 8 is used to place the die casting after it has been inspected by vision inspection device 6, and wait for the robotic arms 3 to pick it up.

[0036] The clamping mechanism 5 is mounted on the frame 1 and is used to transfer the die castings to be inspected from the positioning mechanism 4 to the vision inspection device 6 for inspection and to transfer the inspected die castings from the vision inspection device 6 to the placement table 8. The material tray transfer mechanism 7 is located behind the clamping mechanism 5 and is used to transfer the empty material tray after loading from the left end to the right end of the frame 1 for the robot arm 3 on the right end to pick up and use. The defective product display table 9 is located on both sides of the placement table 8 and is used to place the unqualified die castings after inspection.

[0037] The specific operation process of each structure is as follows: First, the tray containing the die-cast part to be inspected is placed on the transfer mechanism 2. The transfer mechanism 2 automatically moves the tray to the position where the robot arm 3 will pick up the die-cast part. After the robot arm 3 picks up the die-cast part, it is placed on the positioning mechanism 4 for positioning to avoid mismatch in the detection position during subsequent inspection. Then, the clamping mechanism 5 moves the positioned die-cast part to the vision inspection device 6 for automated appearance inspection. After inspection is completed... The rear clamping mechanism 5 transfers the die-casting parts to the placement table 8. The robot arm 3 on the right end, according to the system data instructions, grabs the qualified die-casting parts and places them into the material tray on the right-end transfer mechanism 2. Then, the right-end transfer mechanism 2 outputs the qualified die-casting parts to the designated position, while the unqualified die-casting parts are placed on the defective product display table 9. In the middle of the above process, the robot arm 3 on the left end grabs the empty material tray after grabbing the die-casting parts and places it on the material tray transfer mechanism 7 to be transferred to the right end, where the right-end robot arm 3 will grab it for use.

[0038] Please see Figure 2 As shown, the visual inspection device 6 includes a rotating inspection mechanism 61, a front and back inspection mechanism 62, and a side wall inspection mechanism 63 arranged side by side on the frame from left to right. The rotating inspection mechanism 61 is located to the side of the positioning mechanism 4 and is used to inspect the head and tail ends of the die casting. There are two sets of both the front and back inspection mechanism 62 and the side wall inspection mechanism 63, and the front and back inspection mechanism 62 and the side wall inspection mechanism 63 are arranged side by side with each other in an alternating manner. The front and back inspection mechanism 62 at the left end is used to inspect the front of the die casting, the front and back inspection mechanism 62 at the right end is used to inspect the back of the die casting, the side wall inspection mechanism 63 at the left end is used to inspect the two sides of the die casting, and the side wall inspection mechanism 63 at the right end is used to inspect the inner side wall of the die casting.

[0039] During operation, the inspection sequence is as follows: first, the head and tail ends of the die casting are inspected by the rotating inspection mechanism 61; then, the front and back inspection mechanism 62 located on the left side inspects the front of the die casting; then, the side wall inspection mechanism 63 on the left side inspects the side of the die casting; then, the front and back inspection mechanism 62 on the right side inspects the back of the die casting; and finally, the side wall inspection mechanism 63 on the right side inspects the inner wall of the die casting.

[0040] Please see Figure 3 As shown, the material transfer mechanism 2 includes a material placement rack 22, a material transfer rack 21, a conveyor motor 23, a conveyor belt 24, a lifting connecting plate 25, a lifting linear module 26, a lifting platform 27, and a guide plate 28. The material placement rack 22 is located on the side of the frame 1, and the material transfer rack 21 is located inside the frame 1 and extends upward. The conveyor motor 23 and the conveyor belt 24 are both located on the material transfer rack 21, and the conveyor belt 24 is at the same horizontal height as the material placement rack 22 and is connected to the output end of the conveyor motor 23. The lifting connecting plate 25 is located on the frame 1, the lifting linear module 26 is located on the lifting connecting plate 25, the lifting platform 27 is located on the lifting linear module 26, and the guide plate 28 is located on the material transfer rack 21.

[0041] During the loading operation, the tray containing the die-cast parts to be inspected is placed on the placement rack 22 and pressed onto the conveyor belt 24. Then, the conveyor motor 23 drives the conveyor belt 24 to transport the tray inward to the lifting platform 27. After that, the lifting linear module 26 drives the lifting platform 27 to rise and fall, moving the tray to the gripping station of the robot arm 3. During the unloading operation, the process is reversed. First, the lifting platform 27 descends and moves the tray containing the qualified die-cast parts onto the conveyor belt 24, and then the tray is moved out onto the placement rack 22.

[0042] Please see Figure 4 As shown, the robotic arm 3 includes a base 31, an arm 32, and a suction cup gripper assembly 33. The base 31 is mounted on the frame 1, the arm 32 is mounted on the base 31, and the suction cup gripper assembly 33 is mounted on the arm 32 for gripping die-cast parts and material trays.

[0043] Please see Figure 5 and Figure 6As shown, the positioning mechanism 4 includes a positioning support frame 41, a positioning cylinder 42, a positioning turntable 43, a positioning platform 44, a positioning groove 45 with a built-in spring, and a positioning block 46. The positioning support frame 41 is mounted on the frame 1, the positioning cylinder 42 is mounted on the positioning support frame 41, the positioning turntable 43 is mounted on the output end of the positioning cylinder 42 and the outer edge of the positioning turntable 43 is wavy, the positioning platform 44 is mounted on the top of the positioning support frame 41, and the positioning groove 45 is mounted on the top of the positioning support frame 41. The positioning blocks 46 are positioned around the positioning platform 44 and are set on the positioning groove 45 with their lower ends abutting against the positioning turntable 43. The positioning cylinder 42 drives the positioning turntable 43 to rotate. When the lower end of the positioning block 46 abuts against the crest of the outer edge of the positioning turntable 43, the positioning block 46 moves outward along the positioning groove 45 and spreads out. When the lower end of the positioning block 46 abuts against the trough of the outer edge of the positioning turntable 43, the positioning block 46 moves inward along the positioning groove 45 and closes to position the die-cast part placed on the positioning platform 44.

[0044] During the positioning operation, the positioning block 46 is initially spread out. The robotic arm 3 places the die-casting part onto the positioning table 44. Then, the positioning cylinder 42 drives the positioning turntable 43 to rotate. The lower end of the positioning block 46 gradually approaches the trough of the positioning turntable 43. Due to the elasticity of the positioning groove 45, the positioning block 46 also gathers and moves towards the positioning table 44 along the positioning groove 45, finally pressing and positioning the die-casting part. After positioning, the positioning cylinder 42 drives the positioning turntable 43 to rotate again. At this time, the lower end of the positioning block 46 gradually approaches the crest of the outer edge of the positioning turntable 43. The positioning block 46 is also pushed outward and spread out. At this time, the clamping mechanism 5 can clamp and transfer the die-casting part, and this operation is repeated.

[0045] Please see Figure 7 As shown, the clamping mechanism 5 includes a clamping guide rail frame 51, a clamping linear module 52, a clamping moving plate 53, a clamping lifting cylinder 54, a clamping lifting plate 55, and a clamping cylinder gripper assembly 56. The clamping guide rail frame 51 is mounted on the frame 1, the clamping linear module 52 is mounted on the clamping guide rail frame 51, the clamping moving plate 53 is mounted on the clamping linear module 52 and can move along the clamping guide rail frame 51, and several clamping lifting cylinders 54 are mounted on the clamping moving plate 53. Corresponding to the positioning mechanism 4, the rotation detection mechanism 61, the front and back detection mechanism 62, the side wall detection mechanism 63, and the placement platform 8, the clamping lifting plate 55 is set on the clamping lifting cylinder 54, and the clamping cylinder gripper assembly 56 is set on the clamping lifting plate 55. The clamping lifting cylinder 54 drives the clamping cylinder gripper assembly 56 to move up and down to grab the die casting. Then, the clamping linear module 52 moves laterally to drive the clamping cylinder gripper assembly 56 to place the die casting to the designated position.

[0046] During operation, the clamping linear module 52 drives the clamping cylinder gripper assembly 56 to move left and right, while the clamping lifting cylinder 54 drives the clamping cylinder gripper assembly 56 to move up and down to grip the die casting. Because the positioning mechanism 4, the rotating detection mechanism 61, the front and back detection mechanism 62, and the side wall detection mechanism 63 complete their work at the same time, the clamping cylinder gripper assembly 56 can simultaneously grip the die casting on the positioning mechanism 4, the rotating detection mechanism 61, the front and back detection mechanism 62, and the side wall detection mechanism 63 and transfer them to the next process station.

[0047] Please see Figure 8 As shown, the rotating detection mechanism 61 includes a rotating support frame 611, a rotating motor 612, a rotating table 613, a rotating positioning component 614, and a rotating detection lens 615. The rotating support frame 611 is mounted on the frame 1. The rotating motor 612 is mounted inside the rotating support frame 611. The rotating table 613 is mounted on top of the rotating support frame 611 and connected to the output end of the rotating motor 612. The rotating positioning component 614 is mounted inside the rotating support frame 611 and connected to the output end of the rotating motor 612, and is used to sense and position the original orientation of the rotating table 613. The rotating detection lens 615 is located on one side of the rotating support frame 611 and corresponds to the rotating table 613.

[0048] During operation, the clamping mechanism 5 places the die-casting part onto the rotary table 613. The rotary motor 612 drives the rotary table 613 to rotate, aligning the head and tail ends of the die-casting part with the rotary detection lens 615 for detection. The rotary positioning component 614 senses the rotation angle of the rotary table 613. After the detection is completed, the rotary motor 612 drives the rotary table 613 back to its original position based on the original position recorded by the rotary positioning component 614.

[0049] Please see Figure 9As shown, the front and back detection mechanism 62 includes a front and back detection seat 621 with guide rails, a front and back adjustment motor 622, a front and back moving component 623, a front and back rotation motor 624, a front and back detection table 625, a front and back limiting cylinder 626, a front and back limiting component 627, a front and back positioning assembly 628, and a front and back detection lens 629. The front and back detection seat 621 is mounted on the frame 1. The front and back moving component 623 is mounted on the top of the front and back detection seat 621. The front and back adjustment motor 622 is mounted on the lower part of the front and back detection seat 621 and connected to the front and back moving component 623, for driving the front and back moving component 623 to move along the front and back detection seat 621. The front and back detection table 625 is rotatably mounted on the front and back moving component 623. A front-back rotation motor 624 is mounted on one end of the front-back moving member 623 and connected to the front-back inspection platform 625, used to drive the front-back inspection platform 625 to rotate. A front-back limiting cylinder 626 and a front-back limiting member 627 are symmetrically arranged on the front-back inspection platform 625. The output end of the front-back limiting cylinder 626 is connected to the front-back limiting member 627, used to drive the front-back limiting member 627 to limit the die-casting part. A front-back positioning component 628 is mounted on one end of the front-back inspection platform 625, used to sense and position the original orientation of the front-back inspection platform 625. A front-back inspection lens 629 is mounted on one side of the front-back inspection base 621 and corresponds to the front-back inspection platform 625, used to inspect the die-casting part on the front-back inspection platform 625. A cover can also be installed on the front-back inspection base 621 to cover the front-back adjusting motor.

[0050] During operation, the clamping mechanism 5 places the die-cast part onto the front and back inspection table 625. The front and back limiting cylinder 626 drives the front and back limiting component 627 to limit the die-cast part. Then, the front and back rotation motor 624 drives the front and back inspection table 625 to rotate, aligning the surface to be inspected with the front and back inspection lens 629. The front and back adjustment motor 622 can adjust the distance between the front and back inspection table 625 and the front and back inspection lens 629 to adjust the detection focal length. The front and back positioning component 628 is used to position the front and back inspection table 625 in its original state position, thus repeating the operation.

[0051] Please see Figure 10As shown, the side wall inspection mechanism 63 includes a side inspection seat 631 with guide rails, a side adjustment motor 632, a side moving component 633, a side rotation motor 634, a side inspection table 635, a side limiting cylinder 636, a side limiting component 637, a side positioning assembly 6311, a side support component 638, a side lifting cylinder 639, a side support platform 6310, and a side inspection lens 6312. The side inspection seat 631 is mounted on the frame 1, the side moving component 633 is mounted on the side inspection seat 631, the side adjustment motor 632 is located at the lower part of the side inspection seat 631 and connected to the side moving component 633, and is used to drive the side moving component 633 to move. The side inspection table 635 is movably mounted on the side moving component 633, and the side rotation motor 634 is mounted on the side moving component. One end of 633 is connected to the side inspection platform 635 to drive the side inspection platform 635 to rotate. The side limiting cylinder 636 and the side limiting component 637 are symmetrically arranged on the side inspection platform 635. The output end of the side limiting cylinder 636 is connected to the side limiting component 637 to drive the side limiting component 637 to limit the die-casting part. The side support component 638 is arranged on the frame 1 and below the side inspection platform 635. The side lifting cylinder 639 is arranged on the side support component 638. The side support platform 6310 is arranged on the output end of the side lifting cylinder 639 to assist the side inspection platform 635 in positioning the die-casting part. The side inspection lens 6312 is arranged on one side of the side inspection seat 631 and corresponds to the side inspection platform 635 to inspect the die-casting part on the side inspection platform 635. A cover can also be installed on the side inspection seat 631 to cover the side adjusting motor 632.

[0052] During operation, the clamping mechanism 5 places the die-casting part onto the side inspection table 635. The side limiting cylinder 636 drives the side limiting component 637 to limit the die-casting part. Then, the side rotation motor 634 drives the side inspection table 635 to rotate, aligning the surface of the die-casting part to be inspected with the side inspection lens 6312. The side adjustment motor 632 can adjust the distance between the side inspection table 635 and the side inspection lens 6312 to adjust the detection focal length. The side positioning component 6311 is used to position the side inspection table 635 in its original state. The side lifting cylinder 639 drives the side support table 6310 to assist in positioning the die-casting part on the side inspection table 635. This process is repeated.

[0053] Please see Figure 11As shown, the material tray transfer mechanism 7 includes a transfer frame 71, a transfer guide rail 72, a transfer motor 73, a transfer driven wheel assembly 74, a transfer transmission belt 75, and a transfer tray 76. The transfer frame 71 is mounted on the frame 1, the transfer guide rail 72 is mounted on the transfer frame 71, the transfer motor 73 and the transfer driven wheel assembly 74 are respectively mounted at both ends of the transfer frame 71, the transfer transmission belt 75 is mounted on the transfer motor 73 and the transfer driven wheel assembly 74, and the transfer tray 76 is mounted on the transfer guide rail 72 and connected to the transfer transmission belt 75.

[0054] During operation, the robot arm 3 on the left places the empty material tray onto the transfer tray 76. The transfer motor 73 drives the transfer tray 76 along the transfer guide rail 72 via the transfer transmission belt 75 to move the empty material tray from the left to the right, where the robot arm 3 on the right can grab it for use. This process is repeated.

[0055] The beneficial effects of the present invention are: (1) By setting the material transfer mechanism 2, the die castings to be inspected and the qualified die castings can be automatically output to the designated position without manual intervention, and the work efficiency is high; (2) By setting the positioning mechanism 4, the die castings to be inspected can be positioned before entering the inspection, so that the required inspection surfaces can be inspected more accurately after entering and exiting the inspection; (3) By setting the vision inspection device 6, high-precision automated inspection can be carried out, and each surface that needs to be inspected can be inspected in detail, replacing manual visual inspection, which is safe and reliable, and ensures the quality of the product and production efficiency; (4) By setting the material tray transfer mechanism 7, in conjunction with the robot arm 3, the empty material tray can be automatically transferred to the subsequent tray loading station, so that it is not necessary for manual removal and transportation of the empty tray to the tray loading station after the material is loaded, thus improving the work efficiency.

[0056] 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 automated inspection device for the appearance of die-cast parts, comprising a frame, characterized in that, The frame is equipped with a material transfer mechanism, a robot arm, a positioning mechanism, a clamping mechanism, a vision inspection device, a placement table, a material tray transfer mechanism, and a defective product display table. The material transfer mechanism is symmetrically arranged at both ends of the frame. The material transfer mechanism at the left end is used to place and transfer the material tray containing the die casting to be tested to the position where the robot arm picks up the die casting. The material transfer mechanism at the right end is used to move the material tray filled with qualified die castings from the position where the robot arm places the die castings to the designated position. The robotic arms are symmetrically arranged at both ends of the frame and correspond to the material transfer mechanism. The robotic arm at the left end is used to pick up the die castings to be inspected from the material transfer mechanism and place them on the positioning mechanism, and to pick up the empty material trays from the material transfer mechanism and place them on the material tray transfer mechanism. The robotic arm at the right end is used to pick up the empty material trays from the material tray transfer mechanism and place them on the material transfer mechanism, and to pick up the die castings that have been inspected and passed the inspection from the placement table and place them on the empty material trays on the material transfer mechanism. The defective die castings that have failed the inspection are picked up and placed on the defective product placement table. The positioning mechanism, vision inspection device, and placement platform are arranged side by side on the frame from left to right and between the two robotic arms. The positioning mechanism is used to perform secondary positioning on the die casting to be inspected placed by the robotic arms. The vision inspection device is used to inspect each surface of the die casting that needs to be inspected. The placement platform is used to place the die casting after it has been inspected by the vision inspection device, so that it can be picked up by the robotic arms. The clamping mechanism is mounted on the frame and is used to transfer the die castings to be inspected from the positioning mechanism to the vision inspection device for inspection, and to transfer the inspected die castings from the vision inspection device to the placement table. The material tray transfer mechanism is located behind the clamping mechanism and is used to transfer the empty material tray after loading from the left end to the right end of the frame for the robot arm on the right end to pick up and use. The defective product display table is located on both sides of the placement table and is used to place the unqualified die castings after inspection. The visual inspection device includes a rotating inspection mechanism, a front and back inspection mechanism, and a side wall inspection mechanism arranged side by side on the frame from left to right. The rotating inspection mechanism is located to the side of the positioning mechanism and is used to inspect the head and tail ends of the die casting. There are two sets of both the front and back inspection mechanism and the side wall inspection mechanism, and the front and back inspection mechanism and the side wall inspection mechanism are arranged side by side in an alternating manner. The front and back inspection mechanism at the left end is used to inspect the front of the die casting, the front and back inspection mechanism at the right end is used to inspect the back of the die casting, the side wall inspection mechanism at the left end is used to inspect the two sides of the die casting, and the side wall inspection mechanism at the right end is used to inspect the inner side wall of the die casting. The material transfer mechanism includes a material placement rack, a material transfer rack, a conveyor motor, a conveyor belt, a lifting connecting plate, a lifting linear module, a lifting platform, and a guide plate. The material placement rack is located on the side of the machine frame, and the material transfer rack is located inside the machine frame and extends upward. The conveyor motor and the conveyor belt are both located on the material transfer rack, and the conveyor belt is at the same horizontal height as the material placement rack and is connected to the output end of the conveyor motor. The lifting connecting plate is located on the machine frame, the lifting linear module is located on the lifting connecting plate, the lifting platform is located on the lifting linear module, and the guide plate is located on the material transfer rack.

2. The automated inspection equipment for the appearance of die-cast parts according to claim 1, characterized in that, The robotic arm includes a base, an arm, and a suction cup gripper assembly. The base is mounted on a frame, the arm is mounted on the base, and the suction cup gripper assembly is mounted on the arm for gripping die-cast parts.

3. The automated inspection equipment for the appearance of die-cast parts according to claim 1, characterized in that, The positioning mechanism includes a positioning support frame, a positioning cylinder, a positioning turntable, a positioning platform, a positioning groove with a built-in spring, and a positioning block. The positioning support frame is mounted on the machine frame, the positioning cylinder is mounted on the positioning support frame, the positioning turntable is mounted on the output end of the positioning cylinder and the outer edge of the positioning turntable is wavy, the positioning platform is mounted on the top of the positioning support frame, the positioning groove is mounted on the top of the positioning support frame and is located around the positioning platform, and the positioning block is mounted on the positioning groove with its lower end abutting against the positioning turntable. The positioning cylinder drives the positioning turntable to rotate. When the lower end of the positioning block abuts against the crest of the outer edge of the positioning turntable, the positioning block moves outward along the positioning groove and spreads outward. When the lower end of the positioning block abuts against the trough of the outer edge of the positioning turntable, the positioning block moves inward along the positioning groove and closes to position the die-cast part placed on the positioning platform.

4. The automated inspection equipment for the appearance of die-cast parts according to claim 1, characterized in that, The clamping mechanism includes a clamping guide rail frame, a clamping linear module, a clamping moving plate, a clamping lifting cylinder, a clamping lifting plate, and a clamping cylinder gripper assembly. The clamping guide rail frame is mounted on the machine frame, the clamping linear module is mounted on the clamping guide rail frame, the clamping moving plate is mounted on the clamping linear module and can move along the clamping guide rail frame, several clamping lifting cylinders are mounted on the clamping moving plate and correspond to the positioning mechanism, rotation detection mechanism, front and back detection mechanism, side wall detection mechanism, and placement platform, the clamping lifting plate is mounted on the clamping lifting cylinder, and the clamping cylinder gripper assembly is mounted on the clamping lifting plate. The clamping lifting cylinder drives the clamping cylinder gripper assembly to move up and down to grip the die-casting part, and the clamping linear module moves laterally to drive the clamping cylinder gripper assembly to place the die-casting part in the designated position.

5. The automated inspection equipment for the appearance of die-cast parts according to claim 1 or 4, characterized in that, The rotating detection mechanism includes a rotating support frame, a rotating motor, a rotating table, a rotating positioning component, and a rotating detection lens. The rotating support frame is mounted on a machine frame, the rotating motor is mounted inside the rotating support frame, the rotating table is mounted on top of the rotating support frame and connected to the output end of the rotating motor, the rotating positioning component is mounted inside the rotating support frame and connected to the output end of the rotating motor, and is used to sense and position the original orientation of the rotating table, and the rotating detection lens is located on one side of the rotating support frame and corresponds to the rotating table.

6. The automated inspection equipment for the appearance of die-cast parts according to claim 1 or 4, characterized in that, The front and back inspection mechanism includes a front and back inspection base with guide rails, a front and back adjustment motor, a front and back moving component, a front and back rotation motor, a front and back inspection table, a front and back limit cylinder, a front and back limit component, a front and back positioning assembly, and a front and back inspection lens. The front and back inspection base is mounted on a frame, the front and back moving component is mounted on the top of the front and back inspection base, the front and back adjustment motor is mounted on the lower part of the front and back inspection base and connected to the front and back moving component, and is used to drive the front and back moving component to move along the front and back inspection base, the front and back inspection table is rotatably mounted on the front and back moving component, and the front and back rotation... A motor is mounted on one end of the front and back moving component and connected to the front and back inspection platform to drive the front and back inspection platform to rotate. The front and back limiting cylinder and the front and back limiting component are symmetrically arranged on the front and back inspection platform. The output end of the front and back limiting cylinder is connected to the front and back limiting component to drive the front and back limiting component to limit the die-casting part. The front and back positioning component is located at one end of the front and back inspection platform to sense and position the original orientation of the front and back inspection platform. The front and back inspection lens is located on one side of the front and back inspection base and corresponds to the front and back inspection platform to inspect the die-casting part on the front and back inspection platform.

7. The automated inspection equipment for the appearance of die-cast parts according to claim 1 or 4, characterized in that, The side wall inspection mechanism includes a side inspection seat with guide rails, a side adjustment motor, a side moving component, a side rotation motor, a side inspection table, a side limit cylinder, a side limit component, a side positioning assembly, a side support component, a side lifting cylinder, a side support table, and a side inspection lens. The side inspection seat is mounted on a frame, the side moving component is mounted on the side inspection seat, the side adjustment motor is located at the lower part of the side inspection seat and connected to the side moving component to drive its movement, the side inspection table is movably mounted on the side moving component, and the side rotation motor is located at one end of the side moving component and connected to the side inspection table to drive its rotation. The side limiting cylinder and the side limiting component are symmetrically arranged on the side inspection platform. The output end of the side limiting cylinder is connected to the side limiting component and is used to drive the side limiting component to limit the die casting. The side positioning component is arranged at one end of the side inspection platform and is used to sense and position the original state and position of the side inspection platform. The side support component is arranged on the frame and below the side inspection platform. The side lifting cylinder is arranged on the side support component. The side support platform is arranged on the output end of the side lifting cylinder and is used to assist the side inspection platform in positioning the die casting. The side inspection lens is arranged on one side of the side inspection seat and corresponds to the side inspection platform and is used to inspect the die casting on the side inspection platform.

8. The automated inspection equipment for the appearance of die-cast parts according to claim 1, characterized in that, The material tray transfer mechanism includes a transfer frame, a transfer guide rail, a transfer motor, a transfer driven wheel assembly, a transfer transmission belt, and a transfer tray. The transfer frame is mounted on a machine frame, the transfer guide rail is mounted on the transfer frame, the transfer motor and the transfer driven wheel assembly are respectively mounted at both ends of the transfer frame, the transfer transmission belt is mounted on the transfer motor and the transfer driven wheel assembly, and the transfer tray is mounted on the transfer guide rail and connected to the transfer transmission belt.

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