A piston visual inspection device

Abstract

This invention provides a piston visual inspection device, belonging to the field of piston manufacturing technology. The piston visual inspection device includes a material handling mechanism comprising a material box translation component and a product handling component; a feeding and conveying mechanism comprising a feeding and conveying component located at the unloading end of the material handling mechanism, used to receive the product released by the product handling component and simultaneously transfer the product; an inspection mechanism located beside the feeding and conveying component, used to simultaneously inspect various external parameters of the product; and an unloading and conveying mechanism comprising an unloading and conveying component located at the unloading end of the inspection mechanism. This invention utilizes the cooperation of the material handling mechanism, conveying mechanism, inspection mechanism, and receiving mechanism to achieve efficient and automated flow of pistons between different inspection processes. Furthermore, by combining the various targeted inspection components in the inspection mechanism, it can achieve comprehensive quality inspection of the piston's appearance. Compared with traditional manual visual inspection, it has the advantages of high work efficiency and low defect rate.

Description

Technical Field

[0001] This invention relates to the field of piston manufacturing technology, and more specifically to a piston visual inspection device. Background Technology

[0002] Pistons are key components in internal combustion engines, compressors, hydraulic cylinders, and other equipment. They are cylinders that reciprocate within a cylinder, converting energy into mechanical energy through the expansion of combustion gases or the pressure of fluids. After machining, pistons require dimensional inspection of their various parts to ensure that the machining parameters meet design requirements. However, existing inspection methods largely rely on human experience, involving visual inspection of piston parameters. Since piston visual inspection involves multiple aspects, such as the piston top, ring land, pin hole, ring groove, skirt, and window, relying solely on manual visual inspection, both between processes and during individual visual inspections, results in low efficiency and a high defect rate. Summary of the Invention

[0003] This invention provides a piston visual inspection device. By utilizing the cooperation of a material handling mechanism, a conveying mechanism, an inspection mechanism, and a receiving mechanism, it can achieve efficient and automated transfer of pistons between different inspection processes. At the same time, by combining various targeted inspection components in the inspection mechanism, it can achieve comprehensive quality inspection of the piston's appearance.

[0004] A piston visual inspection device, comprising: The material handling mechanism includes a material handling box translation component and a product handling component; The feeding and handling mechanism includes a feeding and handling component located at the unloading end of the picking mechanism, which has several handling stations for receiving products released by the product picking component and simultaneously transferring the products. The testing facility is located next to the feeding and handling assembly and is used to simultaneously test various external parameters of the product. The material handling mechanism includes a material handling component located at the material unloading end of the testing mechanism; The receiving mechanism is located at the unloading end of the material handling mechanism and includes a product receiving component and a receiving box translation component.

[0005] Preferably, the material picking box translation assembly includes a frame, several material picking tray fixing seats that are driven on the frame, and several fixing cylinders on the material picking tray fixing seats for fixing the material picking tray from all sides. The product picking assembly includes a frame two, a picking part mounted on the frame two that can move freely along the space, and picking grippers mounted on the picking part.

[0006] Preferably, the feeding and conveying assembly includes a frame three, a lifting cylinder mounted on the bottom mounting plate of the frame three, a conveying mounting base mounted on the output end of the lifting cylinder, a translation cylinder mounted on the mounting base, a plurality of clamping cylinders arranged along the length direction of the translation cylinder, and feeding claws mounted on the output ends of the clamping cylinders on both sides. The clamping ends of the feeding claws extend upward to the top mounting plate of the frame three, and the piston is clamped and fixed to the top of the top mounting plate by the feeding claws.

[0007] Preferably, the detection mechanism includes a top surface detection component, a circumferential shore detection component, a ring groove detection component, a pin hole detection component, a window detection component, and a skirt detection component.

[0008] Preferably, the top surface detection assembly includes a support, a camera support block at the top of the support, a top surface detection camera on the extension of the camera support block, a light source support block at the bottom of the support, and a top surface detection dome light source and a top surface detection ring light source correspondingly arranged along the extension of the light source support block. The top surface detection dome light source and the top surface detection ring light source are arranged on the shooting path of the top surface detection camera. The shoreline detection assembly includes a second bracket, a second camera support block mounted on the second bracket, a shoreline detection camera mounted on the extension of the second camera support block, a third bracket mounted on both sides of the shooting path of the shoreline detection camera, a second light source support block mounted on the top of the third bracket, and a shoreline detection surface light source mounted on the extension of the second light source support block. The annular groove detection assembly includes a bracket four, a camera support block three mounted on the bracket four, an annular groove detection camera mounted on the extension of the camera support block three, a bracket five mounted on the other side of the product relative to the bracket four, a light source support block three mounted on the bracket five, and an annular groove detection backlight mounted on the extension of the light source support block three.

[0009] Preferably, the pin hole detection assembly includes a bracket six, a camera support block four disposed on the bracket six, a pin hole detection camera disposed on the extension of the camera support block four, a bracket seven disposed on the other side of the product relative to the bracket six, a light source support block four disposed on the bracket seven, and a pin hole detection backlight disposed on the light source support block four. The window detection assembly includes a bracket eight, a window detection camera disposed on one side of the extended section of the bracket eight, and a window detection ring light source disposed on the other side of the extended section of the bracket eight. The window detection ring light source is disposed on the shooting path of the window detection camera. The skirt detection assembly includes a bracket nine, a camera support block five mounted on the bracket nine, a skirt detection camera mounted on the extension of the camera support block five, a bracket ten mounted on both sides of the shooting path of the skirt detection camera, a light source support block five mounted on the bracket ten, and a skirt detection surface light source mounted on the extension of the light source support block five.

[0010] Preferably, the piston visual inspection device further includes a weighing mechanism, which includes a weighing and conveying component disposed at the unloading end of the inspection mechanism, a weighing component disposed at the unloading end of the weighing and conveying component, and a robotic arm disposed at the unloading end of the weighing component.

[0011] Preferably, the piston visual inspection device further includes a multi-parameter inspection mechanism, which includes an inspection bracket, a mounting base mounted on the inspection bracket, a lightweight area inspection camera mounted on one side of the mounting base, a lightweight area inspection ring light source mounted on the shooting path of the lightweight area inspection camera, a bottom and inner cavity inspection camera mounted on the other side of the mounting base, and a bottom and inner cavity inspection ring light source mounted on the shooting path of the bottom and inner cavity inspection camera.

[0012] Preferably, the material handling assembly includes a material discharge bracket disposed at the unloading end of the robotic arm and a plurality of fixed carriers slidably disposed on the top of the material discharge bracket. The material handling mechanism also includes an NG material discharge assembly located next to the robotic arm. The NG material discharge assembly includes a second material discharge bracket and a material discharge belt that is driven at the top of the second material discharge bracket.

[0013] Preferably, the product receiving assembly includes a receiving bracket, a receiving part disposed on the receiving bracket and capable of moving freely along the space, and receiving grippers disposed on the receiving part; The receiving tray translation assembly includes a frame four, several receiving tray fixing seats that are driven on the frame four, and several fixing cylinders two that are set on the receiving tray fixing seats for fixing the receiving tray from all sides.

[0014] As can be seen from the above technical solution, the present invention has the following beneficial effects: In the present invention, the material box translation assembly transfers the piston, the product material picking assembly picks up the material box translation assembly, and transfers the product to several handling stations of the feeding and conveying assembly, achieving synchronous product transfer. At this time, the top surface detection assembly, the ring land detection assembly, the ring groove detection assembly, the pin hole detection assembly, the window detection assembly, and the skirt detection assembly in the detection mechanism accurately detect the external dimensions of each part of the piston. Subsequently, the product after detection is transferred to the weighing mechanism for weight detection, and then to the multi-parameter detection mechanism for lightweighting area detection. The bottom and inner cavity are inspected, and then, based on the above inspection results, the unloading and conveying mechanism is used to orderly transport qualified and unqualified products. Finally, qualified products are transferred to the receiving box translation component through the product receiving component and then transported to the next process. This invention utilizes the cooperation of the picking mechanism, conveying mechanism, inspection mechanism and receiving mechanism to realize the efficient and automated flow of pistons between different inspection processes. At the same time, combined with the various targeted inspection components in the inspection mechanism, it can realize comprehensive quality inspection of the piston's appearance. Compared with traditional manual visual inspection, it has the advantages of high work efficiency and low defect rate. Attached Figure Description

[0015] Figure 1 This is a top view of the present invention; Figure 2 This is a schematic diagram of the material handling box translation assembly. Figure 3 This is a structural diagram of the product material handling component; Figure 4 This is a schematic diagram of the feeding and handling assembly. Figure 5 This is a schematic diagram of the top surface detection component; Figure 6 This is a schematic diagram of the structure of the shoreline detection component; Figure 7 This is a schematic diagram of the annular groove detection component. Figure 8 This is a schematic diagram of the pin hole detection component. Figure 9 This is a schematic diagram of the window detection component structure; Figure 10 This is a schematic diagram of the skirt detection component structure; Figure 11 This is a structural schematic diagram of the material handling assembly; Figure 12 This is a schematic diagram of the NG discharge assembly. Figure 13 This is a structural diagram of the product receiving assembly; Figure 14 This is a schematic diagram of the material receiving box translation assembly. Figure 15 This is a schematic diagram of the robotic arm. Figure 16 This is a structural schematic diagram of the weighing and handling assembly; Figure 17 This is a schematic diagram of the weighing assembly. Figure 18 This is a schematic diagram of a multi-parameter detection mechanism.

[0016] In the diagram: 10. Material handling mechanism; 111. Frame 1; 112. Material handling tray fixing seat; 113. Fixing cylinder 1; 121. Frame 2; 20. Feeding and conveying mechanism; 211. Frame 3; 212. Bottom mounting plate; 213. Lifting cylinder; 214. Transport mounting seat; 215. Translation cylinder; 216. Clamping cylinder; 217. Feeding gripper; 218. Top mounting plate; 30. Detection mechanism; 311. Bracket 1; 312. Camera support block 1; 313. Top surface detection camera; 314. Optical... Source support block 1; 315, Dome light source for top surface detection; 316, Ring light source for top surface detection; 321, Support 2; 322, Camera support block 2; 323, Ring detection camera; 324, Support 3; 325, Light source support block 2; 326, Ring detection surface light source; 331, Support 4; 332, Camera support block 3; 333, Ring groove detection camera; 334, Support 5; 335, Light source support block 3; 336, Ring groove detection backlight; 341, Support 6; 342, Camera support block 4; 343, Pin hole detection Camera; 344. Bracket 7; 345. Light source support block 4; 346. Pin hole detection backlight; 351. Bracket 8; 352. Window detection camera; 353. Window detection ring light source; 361. Bracket 9; 362. Camera support block 5; 363. Skirt detection camera; 364. Bracket 10; 365. Light source support block 5; 366. Skirt detection surface light source; 40. Material handling mechanism; 411. Material discharge bracket 1; 412. Fixed carrier; 421. Material discharge bracket 2; 422. Material discharge belt; 50. Material receiving mechanism; 511, material receiving bracket; 521, material receiving tray fixing seat; 522, fixing cylinder two; 611, weighing and handling bracket; 612, handling part; 613, handling gripper; 621, weighing frame; 622, transfer platform; 623, POM block; 630, robotic arm; 710, inspection bracket; 720, mounting base; 730, lightweight area inspection camera; 740, lightweight area inspection ring light source; 750, bottom and inner cavity inspection camera; 760, bottom and inner cavity inspection ring light source. Detailed Implementation

[0017] A preferred embodiment of the present invention will now be described in detail with reference to the accompanying drawings.

[0018] To achieve the above objectives, the embodiments of the present invention adopt the following technical solutions: (Refer to...) Figure 1 A piston visual inspection device includes a picking mechanism 10, a feeding and conveying mechanism 20, an inspection mechanism 30, a discharging and conveying mechanism 40, and a receiving mechanism 50. The picking mechanism includes a picking box translation component and a product picking component. The picking box translation component is used to transfer the picking box containing the piston, and the product picking component is used to pick up material from the picking box. The feeding and conveying mechanism includes a feeding and conveying component located at the unloading end of the picking mechanism. The feeding and conveying component has several conveying stations for receiving products released by the product picking component and simultaneously transferring the products to the next... In this process, the inspection mechanism is located beside the feeding and conveying assembly and is used to simultaneously inspect various external parameters of the product. The discharge and conveying mechanism includes a discharge and conveying assembly located at the unloading end of the inspection mechanism. This discharge and conveying assembly is used to transport the inspected products out according to the inspection results. The receiving mechanism is located at the unloading end of the discharge and conveying mechanism. This receiving mechanism includes a product receiving assembly and a receiving box translation assembly. The product receiving assembly is used to grab the inspected and qualified products from the discharge and conveying mechanism. The receiving box translation assembly is used to receive the products grabbed by the product receiving assembly and simultaneously transfer the products to the next process.

[0019] Reference Figure 2 As a preferred technical solution in this embodiment, the material picking box translation assembly includes a frame 111, a material picking tray fixing seat 112, and a fixing cylinder 113. It should be noted that the frame 111 is provided with a transverse module, and the number of material picking tray fixing seats 112 is several. The several material picking tray fixing seats 112 are drivenly mounted on the transverse module of the frame 1. The transverse module can be a linear motor or other device capable of linear motion to realize the transverse movement of the material picking tray fixing seat 112. The number of fixing cylinders 113 is several, and the several fixing cylinders 113 are located around the material picking tray fixing seat 112 to fix the material picking tray from all sides. Furthermore, refer to Figure 3 The product picking assembly includes a frame 2 121, a picking section, and picking grippers. The picking section is mounted on the frame 2 and can move freely within its own space. The picking grippers are mounted on the picking section. Furthermore, the picking section includes a three-axis transverse module, namely the X-axis, Y-axis, and Z-axis. This three-axis transverse module can be a linear motor module to achieve linear movement along its respective axis. The picking grippers can be a combination of a cylinder and a gripper, that is, the cylinder drives the gripper to open and close, thereby achieving the gripping or releasing of the piston. In this way, by using the movement of the picking section along the X-axis, Y-axis, and Z-axis, the picking grippers can move freely within the space of the frame 2 121, thus facilitating material picking.

[0020] Furthermore, refer to Figure 4The feeding and conveying assembly includes a frame 211, a bottom mounting plate 212, a lifting cylinder 213, a conveying mounting base 214, a translation cylinder 215, a clamping cylinder 216, a feeding gripper 217, and a top mounting plate 218. The bottom mounting plate 212 and the top mounting plate 218 form a rectangular frame structure through support columns. The lifting cylinder 213 is fixedly mounted on the bottom mounting plate 212 of the frame 211. The conveying mounting base 214 is located at the output end of the lifting cylinder and is situated within the gap formed by the bottom mounting plate 212 and the top mounting plate 218. The translation cylinder 215 is mounted on the mounting base. Several clamping cylinders 216 are arranged along the length of the translation cylinder and are located at the free-moving end of the translation cylinder 215, enabling horizontal movement under the drive of the translation cylinder 215. Regarding the movement, it should be noted that the clamping cylinder 216 is a dual-output cylinder, and the feeding jaws 217 are located on both output ends of the clamping cylinder. The clamping end of the feeding jaws 217 has a clamping groove that matches the side of the piston. At the same time, the clamping end of the feeding jaws extends upward to the top mounting plate 218 of the frame 211. In this way, the piston is clamped and fixed to the top of the top mounting plate by the feeding jaws 217. In use, the material handling mechanism clamps several pistons onto the top mounting plate 218 in sequence, and uses the feeding jaws 217 to clamp and fix the pistons. Then, the pistons are moved upward by the lifting cylinder 213 and transferred to the inspection station by the translation cylinder 215. Multiple external parameters of the pistons are inspected. After the inspection is completed, the material handling assembly clamps and unloads the pistons. Then, the lifting cylinder 213 and the translation cylinder 215 are used to reset the material handling assembly.

[0021] In some embodiments, the detection mechanism includes a top surface detection component 310, a ring bank detection component 320, a ring groove detection component 330, a pin hole detection component 340, a window detection component 350, and a skirt detection component 360. Furthermore, refer to Figure 5The top surface detection assembly includes a support block 311, a camera support block 312, a top surface detection camera 313, a light source support block 314, a top surface detection dome light source 315, and a top surface detection ring light source 316. The camera support block 312 is fixedly mounted on the top of the support block 311, the top surface detection camera 313 is fixedly mounted on the extension of the camera support block 313, and the light source support block 314 is fixedly mounted on the bottom of the support block 314. The top surface detection dome light source 315 and the top surface detection ring light source 316 are correspondingly arranged along the extension of the light source support block 315, and the top surface detection dome light source and the top surface detection ring light source are positioned above the top surface detection camera 313. In the shooting path of 13, when in use, the top surface detection camera 313 is installed vertically, and the field of view is through the top surface detection dome light source 315 and the top surface detection ring light source 316, facing the top surface of the piston. It can clearly obtain the information of the top surface of the piston. The top surface detection dome light source 315 illuminates the top surface of the piston evenly and comprehensively, and the top surface detection ring light source 316 illuminates the shadow area and highlights the chamfered area of ​​the piston edge. Specifically, in this embodiment, the lens adopts a 20mm focal length and 500w pixels. During shooting, it takes two shots: the top surface detection dome light source 315 is turned on to take one shot, and the top surface detection ring light source 316 is turned on to take one shot. Furthermore, refer to Figure 6 The shoreline detection assembly includes a second support 321, a second camera support block 322, a shoreline detection camera 323, a third support 324, a second light source support block 325, and a shoreline detection surface light source 326. The second camera support block 322 is fixedly mounted on the second support 321. The shoreline detection camera 323 is fixedly mounted on the extension of the second camera support block. The third support 324 is positioned on both sides of the shooting path of the shoreline detection camera 323. The second light source support block 325 is fixedly mounted on the top of the third support block. The shoreline detection surface light source 326 is fixedly mounted on... In use, the extension of the light source support block 2 is used with the ring-land inspection camera 323 horizontally mounted, its field of view directly illuminating the piston ring land. The two ring-land inspection surface light sources 326 illuminate the piston ring land at an angle, one bright and one dark, forming a bright and dark field on the ring land surface. This allows for more accurate and comprehensive acquisition of defects and abnormalities in the piston ring land, improving the accuracy and reliability of the inspection. The ring-land inspection camera 323 has a 20mm focal length and 500w pixels. During shooting, it rotates to capture images, that is, it rotates the product 400° to acquire a total of 20 to 30 images. Furthermore, refer to Figure 7The groove detection assembly includes a bracket 331, a camera support block 332, a groove detection camera 333, a bracket 334, a light source support block 335, and a groove detection backlight 336. The camera support block 332 is fixedly mounted on the bracket 4, the groove detection camera 333 is fixedly mounted on the extension of the camera support block 3, the bracket 5 334 is located on the other side of the product relative to the bracket 4, the light source support block 335 is fixedly mounted on the bracket 5, and the groove detection backlight 336 is fixedly mounted on the extension of the light source support block 3. In use, the groove detection camera 333 is horizontally mounted, with its field of view directly illuminating the piston groove. The groove detection backlight 336 is used to highlight the outline of the piston groove. The groove detection camera 333 uses a 500w pixel telecentric lens and rotates to capture images, i.e., it rotates the piston 400°, acquiring a total of 20 to 30 images. Furthermore, refer to Figure 8 The pin hole detection assembly includes a bracket 6 341, a camera support block 4 342, a pin hole detection camera 343, a bracket 7 344, a light source support block 4 345, and a pin hole detection backlight 346. The camera support block 4 342 is fixedly mounted on the bracket 6, the pin hole detection camera 343 is fixedly mounted on the extension of the camera support block 4, the bracket 7 344 is located on the other side of the product relative to the bracket 6, the light source support block 4 345 is fixedly mounted on the bracket 7, and the pin hole detection backlight 346 is fixedly mounted on the light source support block 4. In use, the pin hole detection camera 343 is horizontally mounted, and the field of view is directly illuminated by the pin hole detection backlight 346 through the pin hole, making the internal structure and edge contour of the pin hole clearly visible. The lens of the pin hole detection camera 343 is 500w pixels. The pin hole detection backlight 346 can make the workpiece block other parts of the light, highlighting the internal surface information of the pin hole. During shooting, two shots are taken. First, the first shot is taken at the 0° position, and then the piston is rotated to 180° to complete the second shot. Furthermore, refer to Figure 9 The window detection assembly includes a bracket 351, a window detection camera 352, and a window detection ring light source 353. The window detection camera 352 is fixedly installed on an extension section on one side of the bracket 8, and the window detection ring light source 353 is installed on an extension section on the other side of the bracket 8. The window detection ring light source is positioned on the shooting path of the window detection camera 352. In use, the window detection camera 352 is installed at a slight tilt, illuminating the piston window and part of the lightweight component. The window detection ring light source 353 evenly illuminates the piston window and the lightweight component. The window detection camera 352 uses a 20mm focal length and 500w pixels. During shooting, it takes two shots, one at 0° and one at 180°. Furthermore, refer to Figure 10The skirt detection assembly includes a bracket nine 361, a camera support block five 362, a skirt detection camera 363, a bracket ten 364, a light source support block five 365, and a skirt detection surface light source 366. The camera support block five 362 is fixedly mounted on the bracket nine, the skirt detection camera 363 is fixedly mounted on the extension of the camera support block five, the bracket ten 364 is fixedly mounted on both sides of the shooting path of the skirt detection camera, the light source support block five 365 is fixedly mounted on the bracket ten, and the skirt detection surface light source 366 is fixedly mounted on the extension of the light source support block five. The skirt detection camera 363 is horizontally mounted, with its field of view directly hitting the piston skirt. The lens has a focal length of 20mm and a resolution of 500w pixels. During shooting, six shots are taken, that is, three shots are taken at the same angles near 0° and near 180°. In some embodiments, refer to Figure 1 , Figure 15 The piston visual inspection device further includes a weighing mechanism 60, which includes a weighing and conveying component disposed at the unloading end of the inspection mechanism, a weighing component disposed at the unloading end of the weighing and conveying component, and a robotic arm 630 disposed at the unloading end of the weighing component. Furthermore, refer to Figure 16 The weighing and handling assembly includes a weighing and handling bracket 611, a handling part 612, and a handling gripper 613. The handling part 612 is mounted on the weighing and handling bracket 611 and can move freely along its own space. The handling gripper is mounted on the handling part. Furthermore, the handling part includes a two-axis transverse movement module, namely the X-axis and the Z-axis. The two-axis transverse movement module can be a linear motor module to achieve linear movement along its respective axis. The handling gripper can be a combination of a cylinder and a gripper, that is, the cylinder drives the gripper to open and close, thereby achieving the gripping or releasing of the piston. In this way, by using the movement of the handling part along the X-axis and the Z-axis, the handling gripper can move freely in the space where the weighing and handling bracket 611 is located, thereby picking up materials to facilitate subsequent weighing operations. Furthermore, refer to Figure 17 The weighing assembly includes a weighing frame 621, a transfer platform 622, and a POM block 623. The transfer platform 622 is located on top of the weighing frame 621. The POM block 623 is mounted on the transfer platform 622 via a cylinder. In use, after the product is moved into position, it is placed on the POM block 623 on the transfer platform 622. The POM block 623 supports the product from below. The cylinder retracts, causing the POM block 623 to descend. The product is then placed on the electronic scale on the transfer platform 622 by gravity, thereby achieving the weighing and detection of the product.

[0022] Furthermore, the robotic arm 630 is a machine capable of product handling, its model is FANUC LR-Mate200iD-4S, and its front-end gripping mechanism is a gripper cylinder.

[0023] In some embodiments, refer to Figure 18 The piston visual inspection device further includes a multi-parameter inspection mechanism, which includes an inspection bracket 710, a mounting base 720, a lightweight area inspection camera 730, a lightweight area inspection ring light source 740, a bottom and inner cavity inspection camera 750, and a bottom and inner cavity inspection ring light source 760. The mounting base 720 is fixedly mounted on the inspection bracket, the lightweight area inspection camera 730 is fixedly mounted on one side of the mounting base, the lightweight area inspection ring light source 740 is positioned on the shooting path of the lightweight area inspection camera, the bottom and inner cavity inspection camera 750 is fixedly mounted on the other side of the mounting base, and the bottom and inner cavity inspection ring light source 760 is positioned on the shooting path of the bottom and inner cavity inspection camera 750. In this embodiment, when inspecting the piston's lightweighting, bottom, and inner cavity, dual cameras are used for shooting. The lightweighting area detection camera 730 and the bottom and inner cavity detection camera 750 work together. The two cameras are horizontally mounted, with their fields of view illuminating the bottom of the piston. The camera lenses are selected with a focal length of 20mm and a resolution of 500W pixels. The light source is a ring light, which can evenly illuminate the piston stop, the bottom of the ring land, and the inner cavity area. During shooting, the robotic arm 630 can grasp the piston and move it in front of the lightweighting area detection camera 730 and rotate it counterclockwise to shoot the lightweighting area. Then, the robotic arm 630 grasps the piston and moves it in front of the bottom and inner cavity detection camera 750 and gradually pulls it closer to shoot the piston stop, the bottom of the ring land box, and the four walls of the inner cavity counterclockwise.

[0024] Furthermore, refer to Figure 11 The material handling assembly includes a material handling bracket 411 and a fixed carrier 412. The material handling bracket 411 is located at the unloading end of the robotic arm 630. There are several fixed carriers 412, which are slidably arranged on the top of the material handling bracket 411. A linear motion module can be set on the material handling bracket 411, and the fixed carriers 412 are located at the moving end of the linear motion module. After the multi-parameter detection mechanism completes the detection, the robotic arm 630 places the product on the fixed carrier 412, and the linear motion module moves the product to a safe position to facilitate the material handling mechanism to discharge the material. It should be noted that this material handling assembly is used to transfer OK products. That is, after the aforementioned multi-parameter detection is qualified, the qualified products are transferred through this material handling assembly. Simultaneously refer to Figure 12 To facilitate the transfer of NG products, the material handling mechanism also includes an NG discharge assembly 420 located next to the robotic arm. The NG discharge assembly includes a discharge bracket 421 and a discharge belt 422. The discharge belt 422 is driven on the top of the discharge bracket 421. In use, products that fail the inspection can be transferred to the discharge belt 422 by the robotic arm 630 and transported to a suitable location for processing.

[0025] Furthermore, refer to Figure 13 The product receiving assembly includes a receiving bracket 511, a receiving section, and receiving grippers. The receiving section is mounted on the receiving bracket and can move freely within its own space. The receiving grippers are mounted on the receiving section. The receiving section includes a two-axis transverse movement module, namely the X-axis and the Z-axis. This two-axis transverse movement module can be a linear motor module to achieve linear movement along its respective axis. The receiving grippers can be a combination of a cylinder and a gripper, that is, the cylinder drives the gripper to open and close, thereby achieving the gripping or releasing of the piston. In this way, by using the movement of the receiving section along the X-axis and the Z-axis, the receiving grippers can move freely within the space of the receiving bracket 511 to collect materials, thus facilitating subsequent operations. Furthermore, refer to Figure 14 The receiving box translation assembly includes a frame four 521, a receiving tray fixing seat 522, and a fixing cylinder two 523. It should be noted that the receiving box translation assembly and the picking box translation assembly have the same structure, that is, the frame four 52 is provided with a transverse module, the number of receiving box fixing seats 522 is several, and several receiving tray fixing seats 522 are drivenly mounted on the frame four. The transverse module can be a linear motor or other device that can realize linear motion to realize the transverse movement of the receiving tray fixing seat 522. The number of fixing cylinder two 523 is several, and several fixing cylinder two 523 are located around the receiving tray fixing seat to fix the receiving tray from all sides.

[0026] The above-described embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A piston visual inspection device, characterized in that, include: The material handling mechanism (10) includes a material handling box translation component and a product handling component; The feeding and handling mechanism (20) includes a feeding and handling component located at the unloading end of the picking mechanism, which has several handling stations for receiving products released by the product picking component and simultaneously transferring the products. The testing unit (30) is located next to the feeding and handling assembly and is used to simultaneously test various external parameters of the product; The material handling mechanism (40) includes a material handling component located at the unloading end of the detection mechanism; The receiving mechanism (50) is located at the unloading end of the material handling mechanism and includes a product receiving component and a receiving box translation component.

2. The piston visual inspection device according to claim 1, characterized in that, The material picking box translation assembly includes a frame (111), several material picking tray fixing seats (112) which are driven on the frame, and several fixing cylinders (113) which are set on the material picking tray fixing seats for fixing the material picking tray from all sides. The product picking assembly includes a frame two (121), a picking part on the frame two that can move freely along the space, and picking grippers on the picking part.

3. The piston visual inspection device according to claim 1, characterized in that, The feeding and handling assembly includes a frame three (211), a lifting cylinder (213) mounted on the bottom mounting plate (212) of the frame three, a handling mounting seat (214) mounted on the output end of the lifting cylinder, a translation cylinder (215) mounted on the mounting seat, a plurality of clamping cylinders (216) arranged along the length direction of the translation cylinder, and feeding claws (217) mounted on both sides of the output end of the clamping cylinder. The clamping end of the feeding claw extends upward to the top mounting plate (218) of the frame three, and the piston is clamped and fixed to the top of the top mounting plate by the feeding claw (217).

4. The piston visual inspection device according to claim 1, characterized in that, The testing mechanism includes a top surface testing component, a ring bank testing component, a ring groove testing component, a pin hole testing component, a window testing component, and a skirt testing component.

5. The piston visual inspection device according to claim 4, characterized in that, The top surface detection assembly includes a support (311), a camera support block (312) set at the top of the support (311), a top surface detection camera (313) set on the extension of the camera support block, a light source support block (314) set at the bottom of the support, and a top surface detection dome light source (315) and a top surface detection ring light source (316) set on the extension of the light source support block. The top surface detection dome light source and the top surface detection ring light source are set on the shooting path of the top surface detection camera (313). The shore detection assembly includes a second bracket (321), a second camera support block (322) mounted on the second bracket (321), a shore detection camera (323) mounted on the extension of the second camera support block, a third bracket (324) mounted on both sides of the shooting path of the shore detection camera, a second light source support block (325) mounted on the top of the third bracket, and a shore detection surface light source (326) mounted on the extension of the second light source support block. The annular groove detection assembly includes a bracket four (331), a camera support block three (332) mounted on the bracket four, an annular groove detection camera (333) mounted on the extension of the camera support block three, a bracket five (334) mounted on the other side of the product relative to the bracket four, a light source support block three (335) mounted on the bracket five, and an annular groove detection backlight (336) mounted on the extension of the light source support block three.

6. The piston visual inspection device according to claim 5, characterized in that, The pin hole detection assembly includes a bracket six (341), a camera support block four (342) mounted on the bracket six, a pin hole detection camera (343) mounted on the extension of the camera support block four, a bracket seven (344) mounted on the other side of the product relative to the bracket six, a light source support block four (345) mounted on the bracket seven, and a pin hole detection backlight (346) mounted on the light source support block four. The window detection assembly includes a bracket eight (351), a window detection camera (352) disposed on one side of the extension of the bracket eight, and a window detection ring light source (353) disposed on the other side of the extension of the bracket eight. The window detection ring light source is disposed on the shooting path of the window detection camera. The skirt detection assembly includes a bracket nine (361), a camera support block five (362) mounted on the bracket nine, a skirt detection camera (363) mounted on the extension of the camera support block five, a bracket ten (364) mounted on both sides of the shooting path of the skirt detection camera, a light source support block five (365) mounted on the bracket ten, and a skirt detection surface light source (366) mounted on the extension of the light source support block five.

7. The piston visual inspection device according to claim 1, characterized in that, The piston visual inspection device further includes a weighing mechanism, which includes a weighing and handling component disposed at the unloading end of the inspection mechanism, a weighing component disposed at the unloading end of the weighing and handling component, and a robotic arm (630) disposed at the unloading end of the weighing component.

8. The piston visual inspection device according to claim 7, characterized in that, The piston visual inspection device further includes a multi-parameter inspection mechanism, which includes an inspection bracket (710), a mounting base (720) mounted on the inspection bracket, a lightweight area inspection camera (730) mounted on one side of the mounting base, a lightweight area inspection ring light source (740) mounted on the shooting path of the lightweight area inspection camera, a bottom and cavity inspection camera (750) mounted on the other side of the mounting base, and a bottom and cavity inspection ring light source (760) mounted on the shooting path of the bottom and cavity inspection camera (750).

9. The piston visual inspection device according to claim 8, characterized in that, The material handling assembly includes a material handling bracket (411) disposed at the material unloading end of the robotic arm (630) and several fixed carriers (412) slidably disposed on the top of the material handling bracket. The material handling mechanism also includes an NG material discharge assembly located next to the robotic arm. The NG material discharge assembly includes a second material discharge bracket (421) and a material discharge belt (422) that is driven on the top of the second material discharge bracket.

10. The piston visual inspection device according to claim 9, characterized in that, The product receiving assembly includes a receiving bracket (511), a receiving part that can move freely along the space on the receiving bracket, and a receiving gripper that is provided on the receiving part. The receiving tray translation assembly includes a frame four (521), several receiving tray fixing seats (522) driven on the frame four, and several fixing cylinders two (523) on the receiving tray fixing seats for fixing the receiving tray from all sides.

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