Automatic detection equipment for appearance of die casting

Abstract

The invention provides die casting appearance automatic detection equipment which comprises a machine frame, material moving mechanisms, a mechanical arm, a positioning mechanism, a material clamping mechanism, a visual detection device, a placing table, a material disc transferring mechanism and a defective product placing table are arranged on the machine frame, and the material moving mechanisms are symmetrically arranged at the two ends of the machine frame; the mechanical arms are symmetrically arranged at the two ends of the rack and correspond to the transferring mechanism, the positioning mechanism, the visual detection device and the placing table are sequentially arranged on the rack side by side from left to right and located between the two mechanical arms, the material clamping mechanism is arranged on the rack, and the material disc transferring mechanism is located behind the material clamping mechanism. The defective product placing tables are located on the two sides of the placing table and used for placing unqualified die castings after detection is completed. The appearance of the die casting is detected in a full-automatic mode, the detection precision is high, safety and reliability are achieved, the detection efficiency is high, the production cost is greatly reduced, and the overall production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of test detection equipment, and in particular to an automatic detection equipment for the appearance of die castings. Background Art

[0002] Appearance inspection of die-castings is an important part of the production process of die-castings. At present, appearance inspection of die-castings is mainly done manually, using the naked eye and single-unit inspection equipment to inspect each surface of the die-castings. This inspection method requires more manual labor, the accuracy of naked eye inspection varies, and the inspection efficiency is relatively low, which can easily affect the overall production efficiency and cause relatively large economic losses. Summary of the invention

[0003] The present invention provides an automatic die-casting appearance detection device, which can fully automatically detect the appearance of die-castings, has high detection accuracy, is safe and reliable, and has high detection efficiency, greatly reduces production costs, and improves overall production efficiency.

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

[0005] An automatic inspection device for the appearance of die castings, comprising a frame, on which are arranged a material transfer mechanism, a manipulator, a positioning mechanism, a material clamping mechanism, a visual 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 castings to be inspected to the position where the manipulator grabs the die castings, and the material transfer mechanism at the right end is used to transfer the material tray filled with the qualified die castings from the position where the manipulator places the die castings to the designated position;

[0007] The manipulators are symmetrically arranged at both ends of the frame and correspond to the transfer mechanism. The manipulator at the left end is used to grab the die-casting to be tested from the material transfer mechanism and place it on the positioning mechanism, and to grab the empty material tray from the transfer mechanism and place it on the material tray transfer mechanism. The manipulator at the right end is used to grab the empty material tray from the material tray transfer mechanism and place it on the material transfer mechanism, and to grab the die-casting that has been tested and qualified from the placement table and place it in the empty material tray on the material transfer mechanism, while the defective die-casting that has failed the test is grabbed and placed on the defective product display table.

[0008] The positioning mechanism, the visual inspection device, and the placement table are arranged side by side on the frame from left to right and are located between the two manipulators. The positioning mechanism is used to perform secondary positioning on the die casting to be inspected placed by the manipulator. The visual inspection device is used to inspect each surface of the die casting that needs to be inspected. The placement table is used to place the die casting that has been inspected by the visual inspection device, waiting to be grabbed by the manipulator.

[0009] The clamping mechanism is arranged on the frame, and is used for transferring the die-casting to be inspected on the positioning mechanism to the visual inspection device for inspection and transferring the inspected die-casting from the visual inspection device to the placement table. The tray transfer mechanism is located behind the clamping mechanism, and is used for transferring the empty tray with completed material from the left end of the frame to the right end to be clamped and used by the robot at the right end. The defective product display table is located on both sides of the placement table, and is used for placing unqualified die-castings after the inspection is completed.

[0010] Preferably, the visual inspection device includes a rotation detection mechanism, a front and back detection mechanism and a side and side wall detection mechanism which are arranged side by side on the frame from left to right in sequence. The rotation detection mechanism is located on the side of the positioning mechanism, and is used to detect the head and tail ends of the die-casting. There are two groups of the front and back detection mechanisms and the side and side wall detection mechanisms, and the front and back detection mechanisms and the side and side wall detection mechanisms are staggered and arranged side by side. The front and back detection mechanism at the left end is used to detect the front of the die-casting, the front and back detection mechanism at the right end is used to detect the back of the die-casting, the side and side wall detection mechanism at the left end is used to detect the two sides of the die-casting, and the side and side wall detection mechanism at the right end is used to detect the inner wall of the die-casting.

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

[0012] Preferably, the robot comprises a base, an arm and a suction cup gripper assembly, the base is arranged on a frame, the arm is arranged on the base, and the suction cup gripper assembly is arranged on the arm for grasping the die casting.

[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 arranged on the frame, the positioning cylinder is arranged on the positioning support frame, the positioning turntable is arranged on the output end of the positioning cylinder and the outer edge of the positioning turntable is wavy, the positioning platform is arranged on the top of the positioning support frame, the positioning groove is arranged on the top of the positioning support frame and is located around the positioning platform, the positioning block is arranged on the positioning groove and the lower end abuts against the positioning turntable, and the positioning turntable is driven to rotate by the positioning cylinder, when the lower end of the positioning block abuts against the crest point of the outer edge of the positioning turntable, the positioning block moves outward along the positioning groove and spreads out, and when the lower end of the positioning block abuts against the trough point of the outer edge of the positioning turntable, the positioning block moves inward along the positioning groove to get closer and position the die-casting placed on the positioning platform.

[0014] Preferably, the clamping mechanism includes a clamping guide 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 frame is arranged on the frame, the clamping linear module is arranged on the clamping guide frame, the clamping moving plate is arranged on the clamping linear module and can move along the clamping guide frame, several clamping lifting cylinders are arranged on the clamping moving plate and correspond to the positioning mechanism, the rotation detection mechanism, the front and back detection mechanism, the side and side wall detection mechanism and the placement table, the clamping lifting plate is arranged on the clamping lifting cylinder, and the clamping cylinder gripper assembly is arranged on the clamping lifting plate, and the clamping cylinder gripper assembly is driven up and down by the clamping lifting cylinder to grab the die-casting, and then the clamping linear module is moved horizontally to drive the clamping cylinder gripper assembly to place the die-casting to a designated position.

[0015] Preferably, the rotation detection mechanism includes a rotating support frame, a rotating motor, a rotating table, a rotation positioning assembly and a rotating detection lens, the rotating support frame is arranged on a frame, the rotating motor is arranged in the rotating support frame, the rotating table is arranged on the top of the rotating support frame and connected to the output end of the rotating motor, the rotation positioning assembly is arranged in 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 rotation detection lens is located on one side of the rotating support frame and corresponds to the rotating table.

[0016] Preferably, the front and back side detection mechanism includes a front and back detection seat with a guide rail, a front and back adjustment motor, a front and back moving part, a front and back rotating motor, a front and back detection platform, a front and back limiting cylinder, a front and back limiting part, a front and back positioning assembly and a front and back detection lens. The front and back detection seat is arranged on a frame, the front and back moving part is arranged on the top of the front and back detection seat, the front and back adjustment motor is arranged at the lower part of the front and back detection seat and is connected to the front and back moving part for driving the front and back moving part to move along the front and back detection seat, the front and back detection platform can be rotatably arranged on the front and back moving part, and the front The back rotation motor is arranged on one end of the front and back moving part and is connected to the front and back detection platform, and is used to drive the front and back detection platform to rotate. The front and back limiting cylinder and the front and back limiting part are symmetrically arranged on the front and back detection platform. The output end of the front and back limiting cylinder is connected to the front and back limiting part, and is used to drive the front and back limiting part to limit the die-casting. The front and back positioning part is arranged at one end of the front and back detection platform, and is used to sense and locate the original position of the front and back detection platform. The front and back detection lens is arranged on one side of the front and back detection seat and corresponds to the front and back detection platform, and is used to detect the die-casting on the front and back detection platform.

[0017] Preferably, the side wall detection mechanism includes a side detection seat with a guide rail, a side adjustment motor, a side moving part, a side rotation motor, a side detection platform, a side limit cylinder, a side limit part, a side positioning assembly, a side support part, a side lifting cylinder, a side support platform and a side detection lens. The side detection seat is arranged on a frame, the side moving part is arranged on the side detection seat, the side adjustment motor is arranged at the lower part of the side detection seat and connected to the side moving part for driving the side moving part to move, the side detection platform is movably arranged on the side moving part, and the side rotation motor is arranged at one end of the side moving part and connected to the side detection platform for driving the side detection platform to rotate The side limit cylinder and the side limit piece are symmetrically arranged on the side detection platform. The output end of the side limit cylinder is connected to the side limit piece to drive the side limit piece to limit the die-casting. The side positioning assembly is arranged at one end of the side detection platform to sense and locate the original state and position of the side detection platform. The side support member is arranged on the frame and is located below the side detection platform. The side lifting cylinder is arranged on the side support member. The side support platform is arranged on the output end of the side lifting cylinder to assist the side detection platform in positioning the die-casting. The side detection lens is arranged on one side of the side detection seat and corresponds to the side detection platform to detect the die-casting on the side detection 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 arranged on the frame, the transfer guide rail is arranged on the transfer frame, the transfer motor and the transfer driven wheel assembly are respectively arranged at both ends of the transfer frame, the transfer transmission belt is arranged on the transfer motor and the transfer driven wheel assembly, and the transfer tray is arranged 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 as follows: (1) by setting up a material transfer mechanism, the die castings to be inspected and the qualified die castings can be automatically output to the designated position, and manual intervention is not required, so the work efficiency is high; (2) by setting up 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 up a visual inspection device, high-precision automatic inspection can be performed, and each surface that needs to be inspected can be finely inspected, replacing manual visual inspection, which is safe and reliable, and ensures product quality and production efficiency; (4) by setting up a tray transfer mechanism, the empty tray can be automatically transferred to the subsequent tray loading station in cooperation with the robot, so that there is no need for manual labor to take out the empty tray after loading and transport it to the tray loading station for use, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

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

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

[0023] Figure 4 A schematic diagram of a manipulator of the present invention;

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

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

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

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

[0028] Fig. 9 It is a schematic diagram of the front and back detection mechanism of the present invention;

[0029] Fig.10 It is a schematic diagram of the side wall detection mechanism of the present invention;

[0030] Fig.11 It is a schematic diagram of the tray transfer mechanism of the present invention. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0032] It should be noted that when a component / part is referred to as being "set on" another component / part, it may be directly set on the other component / part or there may also be a central component / part. When a component / part is referred to as being "connected / coupled" to another component / part, it may be directly connected / coupled to the other component / part or there may be a central component / part at the same time. The term "connection / coupling" used herein may include electrical and / or mechanical physical connections / couplings. The term "includes / comprising" used herein refers to 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" used herein includes any and all combinations of one or more of the relevant listed items. The positioning component generally includes a positioning plate and a sensor for locating the original position and state.

[0033] See also Figure 1-11 As shown, an automatic inspection device for the appearance of die-castings includes a frame 1, on which are equipped a material moving mechanism 2, a manipulator 3, a positioning mechanism 4, a material clamping mechanism 5, a visual inspection device 6, a placement table 8, a material tray transfer mechanism 7 and a defective product display table 9. The material moving mechanism 2 is symmetrically arranged at both ends of the frame 1. The material moving mechanism 2 at the left end is used to place and transfer the material tray containing the die-castings to be inspected to the position where the manipulator 3 grabs the die-castings, and the material moving mechanism 2 at the right end is used to transfer the material tray filled with qualified die-castings from the position where the manipulator 3 places the die-castings to the specified position.

[0034] The manipulator 3 is symmetrically arranged at both ends of the frame 1 and corresponds to the transfer mechanism 2. The manipulator 3 at the left end is used to grab the die-casting to be inspected from the material transfer mechanism 2 and place it on the positioning mechanism 4, and to grab the empty tray from the transfer mechanism 2 and place it on the tray transfer mechanism 7. The manipulator 3 at the right end is used to grab the empty tray from the tray transfer mechanism 7 and place it on the material transfer mechanism 2, and to grab the die-casting that has been inspected and qualified from the placement table 8 and place it in the empty tray on the material transfer mechanism 2, while the defective die-casting that has failed the inspection is grabbed and placed on the defective product display table 9.

[0035] The positioning mechanism 4, the visual inspection device 6, and the placement table 8 are arranged side by side on the frame 1 from left to right and are located between the two manipulators 3. The positioning mechanism 4 is used for secondary positioning of the die-casting to be inspected placed by the manipulator 3. The visual inspection device 6 is used for inspecting each surface of the die-casting that needs to be inspected. The placement table 8 is used for placing the die-casting after inspection by the visual inspection device 6, waiting to be grasped by the manipulator 3.

[0036] The clamping mechanism 5 is arranged on the frame 1, and is used for transferring the die-casting to be inspected on the positioning mechanism 4 to the visual inspection device 6 for inspection and transferring the inspected die-casting from the visual inspection device 6 to the placement table 8. The tray transfer mechanism 7 is located behind the clamping mechanism 5, and is used for transferring the empty tray with completed material from the left end of the frame 1 to the right end to be clamped and used by the manipulator 3 at the right end. The defective product display table 9 is located on both sides of the placement table 8, and is used for placing unqualified die-castings after the inspection is completed.

[0037] The specific operation process of each structure is that first, the material tray containing the die-casting to be inspected needs to be placed on the material transfer mechanism 2, and the material transfer mechanism 2 automatically transfers the material tray to the position where the manipulator 3 grabs the die-casting for the manipulator 3 to grab it. After the manipulator 3 grabs the die-casting, it is placed on the positioning mechanism 4 for positioning to avoid the occurrence of mismatched detection positions in the subsequent detection procedures. Then the clamping mechanism 5 transfers the positioned die-casting to the visual inspection device 6 for automated appearance inspection. The inspection is completed. The rear clamping mechanism 5 transfers the die-casting to the placement table 8, and the manipulator 3 at the right end grabs the qualified die-castings and places them in the tray on the right-end material transfer mechanism 2 according to the system data instructions. Then the right-end material transfer mechanism 2 outputs the qualified die-castings to the designated position, and the unqualified die-castings are placed on the defective product display table 9. During the above process, the manipulator 3 at the left end will grab the empty tray with the die-castings and place it on the tray transfer mechanism 7 for transfer to the right end, waiting to be grabbed and used by the manipulator 3 at the right end.

[0038] See also Figure 2 As shown, the visual inspection device 6 includes a rotation inspection mechanism 61, a front and back inspection mechanism 62 and a side wall inspection mechanism 63 which are arranged side by side on the frame from left to right. The rotation inspection mechanism 61 is located on the side of the positioning mechanism 4, and is used to inspect the head and tail ends of the die-casting. There are two groups of the front and back inspection mechanisms 62 and the side wall inspection mechanisms 63, and the front and back inspection mechanisms 62 and the side wall inspection mechanisms 63 are staggered and arranged side by side. 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 wall of the die-casting.

[0039] During operation, the inspection sequence is to first inspect the head and tail ends of the die-casting through the rotating inspection mechanism 61, then inspect the front of the die-casting through the front and back inspection mechanism 62 located at the left end, then inspect the side of the die-casting through the side and side wall inspection mechanism 63 at the left end, then inspect the back of the die-casting through the front and back inspection mechanism 62 at the right end, and finally inspect the inner wall of the die-casting through the side and side wall inspection mechanism 63 at the right end.

[0040] See also Figure 3 As shown, the material moving mechanism 2 includes a material loading rack 22, a material moving rack 21, a conveying motor 23, a conveying belt 24, a lifting connecting plate 25, a lifting linear module 26, a lifting platform 27 and a guide plate 28. The material loading rack 22 is arranged on the side of the frame 1, the material moving rack 21 is arranged in the frame 1 and extends upward, the conveying motor 23 and the conveying belt 24 are both arranged on the material moving rack 21, and the conveying belt 24 and the material loading rack 22 are at the same horizontal height and are connected to the output end of the conveying motor 23, the lifting connecting plate 25 is arranged on the frame 1, the lifting linear module 26 is arranged on the lifting connecting plate 25, the lifting platform 27 is arranged on the lifting linear module 26, and the guide plate 28 is arranged on the material moving rack 21.

[0041] During the loading operation, the tray of die-castings to be inspected is placed on the material rack 22 and pressed on the conveyor belt 24, and then the conveying motor 23 drives the conveyor belt 24 to transport the tray inward to the lifting platform 27, and then the lifting linear module 26 drives the lifting platform 27 to rise and fall, and transfers the tray to the gripping station of the robot 3; during the unloading operation, on the contrary, the lifting platform 27 first descends and transfers the tray with the qualified die-castings to the conveyor belt 24, and then transfers the tray out to the material rack 22.

[0042] See also Figure 4 As shown, the robot 3 includes a base 31, an arm 32 and a suction cup gripper assembly 33. The base 31 is arranged on the frame 1, the arm 32 is arranged on the base 31, and the suction cup gripper assembly 33 is arranged on the arm 32 for grabbing the die casting and the tray.

[0043] See also 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 arranged on the frame 1, the positioning cylinder 42 is arranged on the positioning support frame 41, the positioning turntable 43 is arranged 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 arranged on the top of the positioning support frame 41, and the positioning groove 45 is arranged on the top of the positioning support frame 41 The positioning block 46 is arranged on the positioning groove 45 and the lower end thereof abuts against the positioning turntable 43. The positioning turntable 43 is driven to rotate by the positioning cylinder 42. When the lower end of the positioning block 46 abuts against the wave crest point 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 wave trough point of the outer edge of the positioning turntable 43, the positioning block 46 moves inward along the positioning groove 45 and approaches to position the die-casting placed on the positioning table 44.

[0044] During the positioning operation, the positioning block 46 is scattered in the original state. The manipulator 3 places the die-casting on the positioning table 44, and then the positioning cylinder 42 drives the positioning turntable 43 to rotate. The lower end of the positioning block 46 will gradually approach the trough position of the positioning turntable 43, and the positioning block 46 will also gather along the positioning groove 45 to the positioning table 44 due to the elastic effect of the positioning groove 45, and finally press the die-casting to position. After positioning, the positioning cylinder 42 drives the positioning turntable 43 to rotate. At this time, the lower end of the positioning block 46 will gradually approach the peak position of the outer edge of the positioning turntable 43, and the positioning block 46 will also be pushed to spread outward. At this time, the clamping mechanism 5 can clamp and move the die-casting away, and this operation is repeated.

[0045] See also 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 arranged on the frame 1, the clamping linear module 52 is arranged on the clamping guide rail frame 51, the clamping moving plate 53 is arranged on the clamping linear module 52 and can move along the clamping guide rail frame 51, and a plurality of clamping lifting cylinders 54 are arranged on the clamping moving plate 53. And corresponding to the positioning mechanism 4, the rotation detection mechanism 61, the front and back detection mechanism 62, the side and side wall detection mechanism 63, and the placement table 8, the clamping lifting plate 55 is arranged on the clamping lifting cylinder 54, and the clamping cylinder gripper assembly 56 is arranged 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, and then the clamping linear module 52 is used to move horizontally 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, and the clamping lifting cylinder 54 drives the clamping cylinder gripper assembly 56 to move up and down to grab the die-casting. Because the positioning mechanism 4, the rotation detection mechanism 61, the front and back detection mechanism 62, and the side and side wall detection mechanism 63 complete their work at the same time, the clamping cylinder gripper assembly 56 can grab the die-castings on the positioning mechanism 4, the rotation detection mechanism 61, the front and back detection mechanism 62, and the side and side wall detection mechanism 63 at the same time and transfer them to the workstation of the next process.

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

[0048] During operation, the clamping mechanism 5 places the die-casting on the rotating table 613, and the rotating motor 612 drives the rotating table 613 to rotate, and the head and tail ends of the die-casting are detected corresponding to the rotating detection lens 615, and the rotating positioning component 614 senses the rotation angle of the rotating table 613. After the detection is completed, the rotating motor 612 drives the rotating table 613 to return to the original state position according to the original position recorded by the rotating positioning component 614.

[0049] See also Fig. 9As shown, the front and back detection mechanism 62 includes a front and back detection seat 621 with a guide rail, a front and back adjustment motor 622, a front and back moving member 623, a front and back rotating motor 624, a front and back detection platform 625, a front and back limiting cylinder 626, a front and back limiting member 627, a front and back positioning assembly 628 and a front and back detection lens 629. The front and back detection seat 621 is arranged on the frame 1, the front and back moving member 623 is arranged on the top of the front and back detection seat 621, the front and back adjustment motor 622 is arranged at the bottom of the front and back detection seat 621 and is connected to the front and back moving member 623, and is used to drive the front and back moving member 623 to move along the front and back detection seat 621, and the front and back detection platform 625 is rotatably arranged on the front and back moving member 623. The front and back rotating motor 624 is arranged on one end of the front and back moving part 623 and connected to the front and back detection platform 625, and is used to drive the front and back detection platform 625 to rotate. The front and back limiting cylinder 626 and the front and back limiting member 627 are symmetrically arranged on the front and back detection platform 625. The output end of the front and back limiting cylinder 626 is connected to the front and back limiting member 627, and is used to drive the front and back limiting member 627 to limit the die casting. The front and back positioning component 628 is arranged at one end of the front and back detection platform 625, and is used to sense and locate the original position of the front and back detection platform 625. The front and back detection lens 629 is arranged on one side of the front and back detection seat 621 and corresponds to the front and back detection platform 625, and is used to detect the die casting on the front and back detection platform 625. A cover can also be arranged on the front and back detection seat 621 to cover the front and back adjustment motor.

[0050] During operation, the clamping mechanism 5 places the die-casting on the front and back inspection table 625, the front and back limit cylinder 626 drives the front and back limit member 627 to limit the die-casting, and then the front and back rotation motor 624 drives the front and back inspection table 625 to rotate, and the surface to be inspected is matched with the front and back inspection lens 629, and 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 inspection focal length, and the front and back positioning assembly 628 is used to position the original state position of the front and back inspection table 625, so as to operate reciprocatingly.

[0051] See also Fig.10As shown, the side wall detection mechanism 63 includes a side detection seat 631 with a guide rail, a side adjustment motor 632, a side moving member 633, a side rotation motor 634, a side detection platform 635, a side limit cylinder 636, a side limit member 637, a side positioning assembly 6311, a side support member 638, a side lifting cylinder 639, a side support platform 6310 and a side detection lens 6312. The side detection seat 631 is arranged on the frame 1, the side moving member 633 is arranged on the side detection seat 631, the side adjustment motor 632 is arranged at the lower part of the side detection seat 631 and is connected to the side moving member 633 for driving the side moving member 633 to move, the side detection platform 635 is movably arranged on the side moving member 633, and the side rotation motor 634 is arranged on the side moving member One end of 633 is connected to the side detection platform 635, which is used to drive the side detection platform 635 to rotate. The side limit cylinder 636 and the side limit piece 637 are symmetrically arranged on the side detection platform 635. The output end of the side limit cylinder 636 is connected to the side limit piece 637, which is used to drive the side limit piece 637 to limit the die casting. The side support piece 638 is arranged on the frame 1 and is located below the side detection platform 635. The side lifting cylinder 639 is arranged on the side support piece 638. The side support platform 6310 is arranged on the output end of the side lifting cylinder 639, which is used to assist the side detection platform 635 to position the die casting. The side detection lens 6312 is arranged on one side of the side detection seat 631 and corresponds to the side detection platform 635, which is used to detect the die casting on the side detection platform 635. A cover can also be arranged on the side detection seat 631 to cover the side adjustment motor 632.

[0052] During operation, the clamping mechanism 5 places the die-casting on the side inspection table 635, the side limit cylinder 636 drives the side limit piece 637 to limit the die-casting, and then the side rotation motor 634 drives the side inspection table 635 to rotate, so that the surface of the die-casting to be inspected corresponds to the side inspection lens 6312, and the side adjustment motor 632 can adjust the distance between the side inspection table 635 and the side inspection lens 6312 to adjust the inspection focal length, and the side positioning component 6311 is used to position the original state position of the side inspection table 635, and the side lifting cylinder 639 drives the side support table 6310 to assist in positioning the die-casting on the side inspection table 635, so as to perform reciprocating operation.

[0053] See also Fig.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 arranged on the frame 1, the transfer guide rail 72 is arranged on the transfer frame 71, the transfer motor 73 and the transfer driven wheel assembly 74 are respectively arranged at both ends of the transfer frame 71, the transfer transmission belt 75 is arranged on the transfer motor 73 and the transfer driven wheel assembly 74, and the transfer tray 76 is arranged on the transfer guide rail 72 and connected to the transfer transmission belt 75.

[0054] During operation, the robot 3 at the left end places the empty tray on the transfer tray 76, and the transfer motor 73 drives the transfer tray 76 through the transfer belt 75 to transfer the empty tray from the left end to the right end along the transfer guide rail 72, waiting to be grabbed and used by the robot 3 at the right end, thereby performing reciprocating operation.

[0055] The beneficial effects of the present invention are as follows: (1) by setting up a material transfer mechanism 2, the die castings to be inspected and the qualified die castings can be automatically output to the designated position, and manual intervention is not required, so the work efficiency is high; (2) by setting up a 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 up a visual inspection device 6, high-precision automatic inspection can be performed, and each surface that needs to be inspected can be finely inspected, replacing manual visual inspection, which is safe and reliable, and ensures product quality and production efficiency; (4) by setting up a tray transfer mechanism 7, in cooperation with the robot 3, the empty tray can be automatically transferred to the subsequent tray loading station, so that there is no need for manual labor to take out the empty tray after loading and transport it to the tray loading station for use, thereby improving work efficiency.

[0056] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An automatic inspection device for the appearance of die castings, comprising a frame, characterized in that: The equipment on the frame includes a material transfer mechanism, a manipulator, a positioning mechanism, a material clamping mechanism, a visual 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 castings to be inspected to the position where the manipulator grabs the die castings, and the material transfer mechanism at the right end is used to transfer the material tray filled with the qualified die castings from the position where the manipulator places the die castings to the designated position; The manipulators are symmetrically arranged at both ends of the frame and correspond to the transfer mechanism. The manipulator at the left end is used to grab the die-casting to be tested from the material transfer mechanism and place it on the positioning mechanism, and to grab the empty material tray from the transfer mechanism and place it on the material tray transfer mechanism. The manipulator at the right end is used to grab the empty material tray from the material tray transfer mechanism and place it on the material transfer mechanism, and to grab the die-casting that has been tested and qualified from the placement table and place it in the empty material tray on the material transfer mechanism, while the defective die-casting that has failed the test is grabbed and placed on the defective product display table. The positioning mechanism, the visual inspection device, and the placement table are arranged side by side on the frame from left to right and are located between the two manipulators. The positioning mechanism is used to perform secondary positioning on the die casting to be inspected placed by the manipulator. The visual inspection device is used to inspect each surface of the die casting that needs to be inspected. The placement table is used to place the die casting that has been inspected by the visual inspection device, waiting to be grabbed by the manipulator. The clamping mechanism is arranged on the frame, and is used for transferring the die-casting to be inspected on the positioning mechanism to the visual inspection device for inspection and transferring the inspected die-casting from the visual inspection device to the placement table. The tray transfer mechanism is located behind the clamping mechanism, and is used for transferring the empty tray with completed material from the left end of the frame to the right end to be clamped and used by the robot at the right end. The defective product display table is located on both sides of the placement table, and is used for placing unqualified die-castings after the inspection is completed.

2. The die casting appearance automatic detection equipment according to claim 1, characterized in that: The visual inspection device includes a rotation detection mechanism, a front and back detection mechanism, and a side and side wall detection mechanism which are arranged side by side on the frame from left to right. The rotation detection mechanism is located on the side of the positioning mechanism, and is used to detect the head and tail ends of the die-casting. There are two groups of the front and back detection mechanisms and the side and side wall detection mechanisms, and the front and back detection mechanisms and the side and side wall detection mechanisms are staggered and arranged side by side. The front and back detection mechanism at the left end is used to detect the front of the die-casting, the front and back detection mechanism at the right end is used to detect the back of the die-casting, the side and side wall detection mechanism at the left end is used to detect the two sides of the die-casting, and the side and side wall detection mechanism at the right end is used to detect the inner wall of the die-casting.

3. The die casting appearance automatic detection equipment according to claim 1, characterized in that: The material moving mechanism includes a material loading rack, a material moving rack, a conveying motor, a conveyor belt, a lifting connection plate, a lifting linear module, a lifting platform and a guide plate. The material loading rack is arranged on the side of the frame, the material moving rack is arranged in the frame and extends upward, the conveying motor and the conveyor belt are both arranged on the material moving rack, and the conveyor belt and the material loading rack are at the same horizontal height and are connected to the output end of the conveying motor, the lifting connection plate is arranged on the frame, the lifting linear module is arranged on the lifting connection plate, the lifting platform is arranged on the lifting linear module, and the guide plate is arranged on the material moving rack.

4. The die casting appearance automatic inspection equipment according to claim 3, characterized in that: The robot comprises a base, an arm and a suction cup gripper assembly, wherein the base is arranged on a frame, the arm is arranged on the base, and the suction cup gripper assembly is arranged on the arm for gripping die castings.

5. The die casting appearance automatic inspection equipment 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 arranged on the frame, the positioning cylinder is arranged on the positioning support frame, the positioning turntable is arranged on the output end of the positioning cylinder and the outer edge of the positioning turntable is wavy, the positioning platform is arranged on the top of the positioning support frame, the positioning groove is arranged on the top of the positioning support frame and is located around the positioning platform, the positioning block is arranged on the positioning groove and the lower end is abutted against the positioning turntable, and the positioning turntable is driven to rotate by the positioning cylinder. When the lower end of the positioning block abuts against the peak point of the outer edge of the positioning turntable, the positioning block moves outward along the positioning groove and disperses, and when the lower end of the positioning block abuts against the trough point of the outer edge of the positioning turntable, the positioning block moves inward along the positioning groove to get closer and position the die-casting placed on the positioning platform.

6. The die casting appearance automatic inspection equipment according to claim 2, characterized in that: The material clamping mechanism includes a material clamping guide frame, a material clamping linear module, a material clamping moving plate, a material clamping lifting cylinder, a material clamping lifting plate and a material clamping cylinder gripper assembly. The material clamping guide frame is arranged on the frame, the material clamping linear module is arranged on the material clamping guide frame, the material clamping moving plate is arranged on the material clamping linear module and can move along the material clamping guide frame, several material clamping lifting cylinders are arranged on the material clamping moving plate and correspond to the positioning mechanism, the rotation detection mechanism, the front and back detection mechanism, the side and side wall detection mechanism and the placement table, the material clamping lifting plate is arranged on the material clamping lifting cylinder, and the material clamping cylinder gripper assembly is arranged on the material clamping lifting plate, and the material clamping cylinder gripper assembly is driven by the material clamping lifting cylinder to move up and down to grab the die-casting, and then the material clamping linear module is moved horizontally to drive the material clamping cylinder gripper assembly to place the die-casting to the designated position.

7. The die casting appearance automatic inspection equipment according to claim 2 or 6, characterized in that: The rotation detection mechanism includes a rotation support frame, a rotation motor, a rotation table, a rotation positioning component and a rotation detection lens. The rotation support frame is arranged on a frame, the rotation motor is arranged in the rotation support frame, the rotation table is arranged on the top of the rotation support frame and connected to the output end of the rotation motor, the rotation positioning component is arranged in the rotation support frame and connected to the output end of the rotation motor, and is used to sense and locate the original orientation of the rotation table. The rotation detection lens is located on one side of the rotation support frame and corresponds to the rotation table.

8. The die casting appearance automatic inspection equipment according to claim 2 or 6, characterized in that: The front and back side detection mechanism includes a front and back detection seat with a guide rail, a front and back adjustment motor, a front and back moving part, a front and back rotating motor, a front and back detection platform, a front and back limiting cylinder, a front and back limiting part, a front and back positioning component and a front and back detection lens. The front and back detection seat is arranged on a frame, the front and back moving part is arranged on the top of the front and back detection seat, the front and back adjustment motor is arranged at the bottom of the front and back detection seat and is connected to the front and back moving part, and is used to drive the front and back moving part to move along the front and back detection seat, the front and back detection platform can be rotatably arranged on the front and back moving part, and the front and back rotating The motor is arranged on one end of the front and back moving part and connected to the front and back detection platform, and is used to drive the front and back detection platform to rotate. The front and back limiting cylinder and the front and back limiting part are symmetrically arranged on the front and back detection platform. The output end of the front and back limiting cylinder is connected to the front and back limiting part, and is used to drive the front and back limiting part to limit the die-casting. The front and back positioning part is arranged at one end of the front and back detection platform, and is used to sense and locate the original position of the front and back detection platform. The front and back detection lens is arranged on one side of the front and back detection seat and corresponds to the front and back detection platform, and is used to detect the die-casting on the front and back detection platform.

9. The die casting appearance automatic inspection equipment according to claim 2 or 6, characterized in that: The side wall detection mechanism includes a side detection seat with a guide rail, a side adjustment motor, a side moving part, a side rotation motor, a side detection platform, a side limit cylinder, a side limit part, a side positioning assembly, a side support part, a side lifting cylinder, a side support platform and a side detection lens. The side detection seat is arranged on a frame, the side moving part is arranged on the side detection seat, the side adjustment motor is arranged at the lower part of the side detection seat and connected to the side moving part, and is used to drive the side moving part to move. The side detection platform is movably arranged on the side moving part, and the side rotation motor is arranged at one end of the side moving part and connected to the side detection platform, and is used to drive the side detection platform to rotate. The side limit cylinder and the side limit piece are symmetrically arranged on the side detection platform. The output end of the side limit cylinder is connected to the side limit piece to drive the side limit piece to limit the die-casting. The side positioning assembly is arranged at one end of the side detection platform to sense and locate the original state and position of the side detection platform. The side support member is arranged on the frame and is located below the side detection platform. The side lifting cylinder is arranged on the side support member. The side support platform is arranged on the output end of the side lifting cylinder to assist the side detection platform in positioning the die-casting. The side detection lens is arranged on one side of the side detection seat and corresponds to the side detection platform to detect the die-casting on the side detection platform.

10. The die casting appearance automatic inspection equipment 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 arranged on the frame, the transfer guide rail is arranged on the transfer frame, the transfer motor and the transfer driven wheel assembly are respectively arranged at two ends of the transfer frame, the transfer transmission belt is arranged on the transfer motor and the transfer driven wheel assembly, and the transfer tray is arranged on the transfer guide rail and connected to the transfer transmission belt.

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