A visual inspection device for automobile cylinder heads

Abstract

This invention relates to the field of appearance inspection technology, and more particularly to an automotive cylinder head appearance inspection device. The device includes a frame, an inspection chamber at the top of the frame with its left and right ends connected to the outside, and a recovery chamber at the bottom of the frame with its front end connected to the outside. A through-hole (or a via hole) communicating with the recovery chamber is provided at the bottom of the inspection chamber. A material carrier plate is slidably connected inside the inspection chamber. A loading groove and a unloading groove are respectively provided on the left and right sides of the material carrier plate. A second through-hole (or a via hole) matching the size of the first through-hole is provided in the middle of the material carrier plate. A clamping mechanism and an inspection mechanism are provided above the first through-hole in the inspection chamber. A transfer mechanism and a storage unit are also provided in the recovery chamber. This invention uses the clamping mechanism in conjunction with the unloading groove of the material carrier plate to unload qualified cylinder heads, and uses the clamping mechanism in conjunction with the second through-hole in the middle of the material carrier plate and the first through-hole of the frame to unload unqualified cylinder heads. Unqualified cylinder heads are transferred to the storage unit by the transfer mechanism for convenient subsequent management.

Description

Technical Field

[0001] This invention relates to the field of appearance inspection technology, and in particular to an appearance inspection device for automobile cylinder heads. Background Technology

[0002] In the automotive engine manufacturing process, the cylinder head is an important component of the engine. Its appearance quality is directly related to the engine's sealing performance, heat dissipation performance, and overall operational stability. If the cylinder head has appearance defects, such as cracks, scratches, or air holes, it may cause problems such as air leakage or oil leakage during engine operation, thereby affecting the engine's performance and lifespan, and even causing safety accidents.

[0003] Traditional cylinder head visual inspection mainly relies on manual visual inspection. This method is not only inefficient and difficult to meet the needs of large-scale production, but the inspection results are also easily affected by the subjective factors, fatigue level and experience level of the inspectors, leading to frequent missed inspections and false inspections. With the continuous expansion of automobile production scale and the increasing requirements for product quality, manual visual inspection can no longer meet the needs of the modern automobile manufacturing industry.

[0004] In recent years, automated inspection equipment using machine vision has emerged. However, in practical applications, some of these devices can only perform simple visual inspections and cannot accurately mark defects in cylinder heads, which is not conducive to subsequent quality traceability and processing. Some devices also lack an effective classification and recycling mechanism for the inspected cylinder heads, often resulting in qualified and unqualified products being stored together, which increases the difficulty of subsequent management. Summary of the Invention

[0005] To overcome the shortcomings of the prior art, the present invention provides an automotive cylinder head appearance inspection device.

[0006] Technical Solution: A visual inspection device for automotive cylinder heads includes a frame, an inspection chamber at the top of the frame with its left and right ends connected to the outside, a recovery chamber at the bottom of the frame with its front end connected to the outside, a through hole at the bottom of the inspection chamber communicating with the recovery chamber, a material carrier plate slidably connected inside the inspection chamber, and electric slide rails on both the front and rear sides of the inspection chamber. The front and rear sides of the material carrier plate are fixedly connected to the output ends of the two electric slide rails, respectively. A loading groove and a unloading groove are respectively provided on the left and right sides of the material carrier plate, and a section matching the size of the through hole is opened in the middle of the material carrier plate. Above the second through-hole in the inspection chamber, there is a clamping mechanism and an inspection mechanism. The clamping mechanism is used to cooperate with the material carrier plate to realize the loading and unloading of cylinder heads. The inspection mechanism includes an electric slide rail II, which is installed in the upper part of the inspection chamber. The output end of the electric slide rail II is connected to a multi-axis robotic arm. The end of the multi-axis robotic arm is equipped with a high-definition camera and a marking pen. A transfer mechanism is set in the middle of the recycling chamber. Storage units are set on both the left and right sides of the transfer mechanism in the recycling chamber. The transfer mechanism is used to receive the cylinder heads that are lowered from the through-hole and transfer them to the storage units.

[0007] Preferably, the clamping mechanism includes a bidirectional lead screw module, which is horizontally installed in the upper part of the detection chamber. Two cylinders are connected to the two output ends of the bidirectional lead screw module. A flipping component is connected to the telescopic rod end of the two cylinders on the same side. A clamping plate is provided on the side of the two flipping components that are close to each other.

[0008] Preferably, the tilting assembly includes a fixed frame connected to the output end of the cylinder. A worm wheel, a worm, and a motor are installed inside the fixed frame. The worm wheel meshes with the worm, and the worm is connected to the motor for transmission. A clamping plate is disposed on the outside of the fixed frame and is coaxially fixed to the worm wheel.

[0009] Preferably, the storage unit includes storage cabinets, with two storage cabinets respectively arranged on the left and right sides of the transfer mechanism in the recycling bin. On the side of the two storage cabinets that are close to each other, multiple storage compartments are vertically spaced apart. Positioning rails are provided on the left and right sides of the bottom of the recycling bin, and the bottom of the two storage cabinets are slidably connected to the two positioning rails respectively.

[0010] Preferably, the transfer mechanism includes two vertically arranged and front-to-back electric slide rails three, and a bidirectional fork is fixedly connected between the output ends of the two electric slide rails three. The bidirectional fork includes a lifting plate that can extend or retract to the left or right. Each storage compartment has two pads two parallel to the direction of movement of the lifting plate at the bottom. The pads two are used to support the cylinder head. The distance between the two pads two in the storage compartment is set to allow the lifting plate to pass through without losing support for the cylinder head.

[0011] Preferably, support plates are provided on both the left and right sides of the upper part of the frame. The top surface of the support plates is flush with the bottom surface of the inner chamber of the testing chamber. There are two pads parallel to the electric slide rail on the top surface of the support plates. There are two clearance grooves corresponding to the pads in the loading and unloading grooves of the loading plate. The height of the top surface of the pads is higher than the height of the inner bottom surface of the loading and unloading grooves of the loading plate. At least one hydraulic cylinder is vertically installed on both the front and rear sides of the frame. The telescopic rod end of the hydraulic cylinder is facing upward and is fixedly connected to the fixed end of the electric slide rail on the same side.

[0012] Preferably, the support plate is rotatably connected to the frame, and at least one hydraulic cylinder is connected between the support plate and the lower part of the frame. The fixed end of the hydraulic cylinder is rotatably connected to the frame, and the telescopic rod end of the hydraulic cylinder is rotatably connected to the support plate. The support plate can rotate upward to close the detection chamber under the drive of the hydraulic cylinder.

[0013] Preferably, lighting lamps are symmetrically installed on the top of the inspection chamber, which are used to provide illumination for the inspection agency to perform visual inspection of the cylinder head.

[0014] The beneficial effects of this invention are:

[0015] 1. The multi-axis robotic arm in the detection mechanism of this invention can flexibly adjust the position of the high-definition camera to perform detailed inspection of the cylinder head, and can mark the defect location with a marking pen to facilitate subsequent processing and analysis. The qualified cylinder head is unloaded by cooperating with the unloading groove of the loading plate through the clamping mechanism, and the unqualified cylinder head is unloaded by cooperating with the second through hole in the middle of the loading plate and the first through hole of the frame through the clamping mechanism. The unqualified cylinder head is transferred to the storage unit by the transfer mechanism to facilitate subsequent management.

[0016] 2. By setting support plates on the left and right sides of the frame, the operator can place and remove the cylinder head on the pads of the two support plates without having to pay close attention to the movement of the material plate, which reduces the possibility of operator errors during tense operation. At the same time, the rotatable design of the support plates makes the entire device structure more compact. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0019] Figure 3 This is a three-dimensional structural cross-sectional view of the present invention;

[0020] Figure 4 This is a cross-sectional view of the internal structure of the frame of the present invention;

[0021] Figure 5 This is a schematic diagram of the installation structure of the material carrier plate, electric slide rail 1, and hydraulic cylinder 1 of the present invention;

[0022] Figure 6 This is an exploded three-dimensional view of the transfer mechanism and storage unit of the present invention;

[0023] Figure 7 This is a schematic diagram of the installation structure of the clamping mechanism and the detection mechanism of the present invention;

[0024] Figure 8 This is a partial structural diagram of the flipping component of the present invention;

[0025] Figure 9 This is a partial structural schematic diagram of the detection mechanism of the present invention;

[0026] The markings in the attached diagram are: 1-Frame, 101-Detection chamber, 102-Recovery chamber, 103-Through hole one, 2-Carrying plate, 201-Through hole two, 202-Feeding chute, 203-Discharging chute, 204-Allowing groove, 3-Electric slide rail one, 4-Clamping mechanism, 401-Bidirectional lead screw module, 402-Cylinder, 403-Fixed frame, 404-Worm gear, 405-Worm, 406-Motor, 407-Clamping plate, 5-Detection machine Structure, 501-Electric slide rail II, 502-Multi-axis robotic arm, 503-High-definition camera, 504-Marking pen, 6-Transfer mechanism, 601-Electric slide rail III, 602-Two-way forklift, 603-Lifting plate, 604-Padded strip II, 7-Storage unit, 701-Storage cabinet, 702-Storage bin, 703-Positioning rail, 8-Support plate, 801-Padded strip I, 9-Hydraulic cylinder I, 10-Hydraulic cylinder II, 11-Lighting lamp. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. However, the present invention can be implemented in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided for thoroughness and completeness and will fully convey the scope of the invention to those skilled in the art.

[0028] Example 1: As Figures 1-9As shown, an automotive cylinder head appearance inspection device includes a frame 1. A testing chamber 101 is located on the upper part of the frame 1, with its left and right ends connected to the outside. A recovery chamber 102 is located on the lower part of the frame 1, with its front end connected to the outside. A through hole 103 communicating with the recovery chamber 102 is opened at the bottom of the testing chamber 101. A material carrier plate 2 is slidably connected inside the testing chamber 101. Electric slide rails 3 are provided on both the front and rear sides of the testing chamber 101. The front and rear sides of the material carrier plate 2 are fixedly connected to the output ends of the two electric slide rails 3, respectively. A loading groove 202 and a unloading groove 203 are provided on the left and right sides of the material carrier plate 2, respectively. A through hole 201 matching the size of the through hole 103 is opened in the middle of the material carrier plate 2. A clamping mechanism 4 and a testing mechanism 5 are arranged above the through hole 103 inside the testing chamber 101. The clamping mechanism 4 cooperates with the material carrier plate 2 to realize the loading and unloading operations of the cylinder head. The testing mechanism 5 includes an electric... Slide rail 2 501, an electric slide rail 2 501, is installed in the upper part of the inspection chamber 101. The output end of the electric slide rail 2 501 is connected to a multi-axis robotic arm 502. The end of the multi-axis robotic arm 502 is equipped with a high-definition camera 503 and a marking pen 504. The high-definition camera 503 is connected to an external controller. Driven by the electric slide rail 2 501, the multi-axis robotic arm 502 moves back and forth in the inspection chamber 101. At the same time, the position of the high-definition camera 503 is further adjusted by the multi-axis robotic arm 502 to perform multi-point visual inspection of the cylinder head. When a defect is found, the marking pen 504 is operated by the multi-axis robotic arm 502 to mark the defect location of the cylinder head. A transfer mechanism 6 is set in the middle of the recovery chamber 102. Storage units 7 are set on both the left and right sides of the transfer mechanism 6 in the recovery chamber 102. The transfer mechanism 6 is used to receive the cylinder head that is lowered from the through hole 103 and transfer it to the storage unit 7.

[0029] like Figure 3 , Figures 7-9 As shown, the clamping mechanism 4 includes a bidirectional lead screw module 401, which is horizontally installed in the upper part of the detection chamber 101. Two cylinders 402 are connected to the two output ends of the bidirectional lead screw module 401. A flipping component is connected to the telescopic rod end of the two cylinders 402 on the same side. A clamping plate 407 is provided on the side of the two flipping components that are close to each other. Driven by the bidirectional lead screw module 401, the two flipping components are moved closer or further apart, thereby realizing the clamping or releasing action of the clamping plate 407 on the cylinder head. When the clamping plate 407 clamps the cylinder head, the flipping component can flip the cylinder head.

[0030] The flipping assembly includes a fixed frame 403, which is connected to the output end of the cylinder 402. A worm gear 404, a worm 405, and a motor 406 are installed inside the fixed frame 403. The worm gear 404 meshes with the worm 405, and the worm 405 is connected to the motor 406 for transmission. A clamping plate 407 is located on the outside of the fixed frame 403 and is coaxially fixed to the worm gear 404. The motor 406 drives the worm 405 to rotate, which in turn drives the worm gear 404 and the clamping plate 407 to flip, thereby realizing the flipping operation of the cylinder head.

[0031] like Figure 2 , Figure 3 and Figure 6 As shown, the storage unit 7 includes a storage cabinet 701. Two storage cabinets 701 are respectively arranged on the left and right sides of the transfer mechanism 6 in the recycling bin 102. On the side of the two storage cabinets 701 that are close to each other, multiple storage bins 702 are vertically spaced apart. Positioning rails 703 are provided on the left and right sides of the bottom of the recycling bin 102. The bottom of the two storage cabinets 701 is slidably connected to the two positioning rails 703 respectively.

[0032] The transfer mechanism 6 includes two vertically arranged and front-to-back electric slide rails 601. A bidirectional fork 602 is fixedly connected between the output ends of the two electric slide rails 601. The bidirectional fork 602 adopts the prior art and includes a lifting plate 603 that can extend to the left or right. Each storage compartment 702 has two pads 604 parallel to the direction of movement of the lifting plate 603 at the bottom. The pads 604 are used to support the cylinder head. The distance between the two pads 604 in the storage compartment 702 is set to allow the lifting plate 603 to pass through without losing support for the cylinder head.

[0033] like Figure 4 As shown, lighting lamps 11 are symmetrically installed on the top of the inspection chamber 101. The lighting lamps 11 are used to provide illumination for the inspection mechanism 5 to perform visual inspection of the cylinder head, ensuring that the high-definition camera 503 can clearly capture the appearance details of the cylinder head.

[0034] The working process of Example 1: Initially, the material carrier plate 2 is located in the middle of the inspection chamber 101. During use, the material carrier plate 2 is driven to move to the left by the electric slide rail 3, so that the loading groove 202 of the material carrier plate 2 extends to the outside of the left side of the frame 1. Then, the cylinder head to be visually inspected is placed in the loading groove 202 of the material carrier plate 2. Subsequently, the material carrier plate 2 is driven to move to the right by the electric slide rail 3 until the cylinder head in the loading groove 202 is directly below the clamping mechanism 4. At this time, the unloading groove 203 of the material carrier plate 2 will extend to the outside of the right side of the frame 1. Subsequently, the telescopic rods of the cylinders 402 corresponding to the two flipping components extend until the clamping plates 407 on the two flipping components descend to align with the center of the front and rear sides of the cylinder head to be inspected. Then, the two flipping components are driven to move closer to each other by the bidirectional lead screw module 401 until the two clamping plates 407 clamp the front and rear sides of the cylinder head to be inspected. Finally, the telescopic rods of the cylinders 402 corresponding to the two flipping components retract to reset, causing the cylinder head to be inspected, clamped by the two clamping plates 407, to rise and be removed from the carrier plate. In the loading trough 202 of cylinder head 2, the multi-axis robotic arm 502 is moved by the electric slide rail 2 501, and the movement path of the high-definition camera 503 is adjusted by the multi-axis robotic arm 502 to take a picture of the cylinder head's appearance. The information obtained is transmitted to the external controller for analysis. The external controller analyzes the appearance information of the cylinder head. The lighting lamp 11 provides sufficient lighting for the inspection mechanism 5 to perform appearance inspection on the cylinder head, ensuring that the high-definition camera 503 can clearly capture the appearance details of the cylinder head, thus improving the accuracy of the inspection. When there is an appearance defect in the cylinder head, the movement path of the marking pen 504 is adjusted by the multi-axis robotic arm 502 to mark the cylinder head with appearance defects. After one side of the cylinder head is inspected, the corresponding worm gear 405 is driven to rotate by the two motors 406. Under the meshing transmission of the worm gear 405 and the worm wheel 404, the two clamping plates 407 and the cylinder head they hold are flipped, thereby adjusting the inspection surface of the cylinder head. After all four sides of the cylinder head have been inspected, the inspection result is determined by the external controller.

[0035] When the current cylinder head's appearance inspection result is qualified, the electric slide rail 3 drives the material carrier 2 to move to the left until the material carrier 2's unloading groove 203 is directly below the cylinder head. At this time, the material carrier 2's loading groove 202 will extend to the outside of the left side of the frame 1. Then, the telescopic ends of the cylinders 402 corresponding to the two flipping components extend, causing the two clamping plates 407 and the cylinder head they hold to descend until the bottom surface of the cylinder head is supported by the inner bottom surface of the material carrier 2's unloading groove 203. Subsequently, the two flipping components are driven away from each other by the bidirectional screw module 401 until the two clamping plates 407 release their grip on the cylinder head. Then, the two flipping components... The telescopic end of the cylinder 402 corresponding to the part retracts and resets, causing the two clamping plates 407 to move out of the unloading groove 203 of the loading plate 2. At the same time, the next cylinder cover to be inspected is placed in the loading groove 202 of the loading plate 2. Then, the loading plate 2 is driven to move to the right by the electric slide rail 3 until the new cylinder cover to be inspected in the loading groove 202 is directly below the clamping mechanism 4. At this time, the qualified cylinder cover extends out to the outside of the right side of the frame 1 along with the unloading groove 203 of the loading plate 2, making it easy to take out the qualified cylinder cover. Subsequently, the above cylinder cover inspection operation can be repeated to perform a visual inspection on the new cylinder cover to be inspected in the loading groove 202.

[0036] When the current cylinder head's appearance inspection result is unqualified, the electric slide rail 3 drives the load plate 2 to move to the left until the through hole 201 of the load plate 2 is vertically aligned with the through hole 103 of the frame 1. At this time, the telescopic ends of the cylinders 402 corresponding to the two flipping components extend, causing the two clamping plates 407 and the cylinder head they hold to descend. The electric slide rail 3 601 drives the bidirectional fork 602 to move upward until the bottom surface of the cylinder head is supported by the lifting plate 603 of the bidirectional fork 602. Subsequently, the bidirectional screw module 401 drives the two flipping components to move away from each other until the two clamping plates 407 release their grip on the cylinder head. Then, the telescopic ends of the cylinders 402 corresponding to the two flipping components retract to reset, causing the two clamping plates 407 to move upward to reset. Next, the electric slide rail 3 601 drives the bidirectional fork 602 to descend, causing the cylinder head on the lifting plate 603 to move down until the bottom surface of the cylinder head is slightly higher than the height of a storage cabinet 701. The cylinder head is lowered from the top surface of the second pad 604 inside the storage compartment 702 by the lifting plate 603 of the double-acting fork 602 into the storage compartment 702 of the storage cabinet 701, until the bottom surface of the cylinder head completely covers the second pad 604 inside the storage compartment 702. Then, the double-acting fork 602 is driven to continue to descend a short distance by the electric slide rail 601, causing the lifting plate 603 of the double-acting fork 602 to lower the cylinder head. Until the bottom surface of the cylinder head is supported by the pad 604 in the storage compartment 702, the lifting plate 603 of the bidirectional fork 602 retracts and resets, preparing for the transfer of the next cylinder head. During the transfer of the unqualified cylinder head by the transfer mechanism 6, the load plate 2 is driven to continue to move to the left by the electric slide rail 3, so that the loading groove 202 of the load plate 2 extends to the outside of the left side of the frame 1, repeating the aforementioned cylinder head loading operation, and entering the next cylinder head inspection process.

[0037] Example 2: Based on Example 1, such as Figures 2-5 As shown, an automotive cylinder head appearance inspection device has support plates 8 on both the left and right sides of the upper part of the frame 1. The top surface of the support plates 8 is flush with the bottom surface of the inspection chamber 101. The top surface of the support plates 8 has two pads 801 parallel to the electric slide rail 3. The pads 801 are used to support the cylinder head. The loading groove 202 and unloading groove 203 of the loading plate 2 are each provided with two clearance grooves 204 corresponding to the pads 801. The height of the top surface of the pads 801 is higher than the height of the bottom surface of the loading groove 202 and unloading groove 203 of the loading plate 2. Two hydraulic cylinders 9 are vertically installed on both the front and rear sides of the frame 1. The telescopic rod end of the hydraulic cylinder 9 faces upward and is fixedly connected to the fixed end of the electric slide rail 3 on the same side.

[0038] The working process of Example 2: The cylinder head to be inspected is placed on the pad strip 801 of the left support plate 8. The electric slide rail 3 drives the material plate 2 to move to the left, so that the loading groove 202 of the material plate 2 extends onto the left support plate 8. During this process, the pad strip 801 on the left support plate 8 enters the clearance groove 204 of the loading groove 202. Multiple hydraulic cylinders 9 simultaneously drive the electric slide rail 3 to move upward, so that the bottom surface of the loading groove 202 of the material plate 2 moves upward until the bottom surface of the loading groove 202 of the material plate 2 supports the cylinder head, and the bottom surface of the cylinder head is separated from the top surface of the pad strip 801 on the left support plate 8. Then, the electric slide rail 3 drives the material plate 2 to move to the right and enter the inspection chamber 101 for the aforementioned appearance inspection operation. At this time, the next cylinder head to be inspected can be placed on the pad strip 801 on the left support plate 8. Then, the unloading groove 203 of the material plate 2 carries the inspected cylinder head to the left support plate 8. When the cylinder head is placed on the right support plate 8, multiple hydraulic cylinders 9 simultaneously drive the electric slide rail 3 to descend, causing the bottom surface of the material tray 203 of the loading plate 2 to descend until it contacts the top surface of the right support plate 8. During this process, the pad strip 801 on the right support plate 8 passes through the clearance groove 204 of the material tray 203. The qualified cylinder head in the material tray 203 of the loading plate 2 is supported by the pad strip 801 on the right support plate 8. Then, the electric slide rail 3 drives the loading plate 2 to move to the left, causing the material tray 203 to move out of the right support plate 8, and the loading tray 202 returns to the left support plate 8. The above cylinder head loading process is repeated. At the same time, the qualified cylinder head on the right support plate 8 can be removed. This cycle is repeated, and the operator can place and remove cylinder heads on the pad strips 801 of the left and right support plates 8 without having to pay close attention to the movement of the loading plate 2, reducing the possibility of operator errors during tense operation.

[0039] To make the overall device structure more compact, in this embodiment 2, as follows: Figure 1 and Figure 2 As shown, the support plate 8 is rotatably connected to the frame 1. Two hydraulic cylinders 10 are connected between the support plate 8 and the lower part of the frame 1. The fixed end of the hydraulic cylinder 10 is rotatably connected to the frame 1, and the telescopic rod end of the hydraulic cylinder 10 is rotatably connected to the support plate 8. When not in use, the telescopic rod end of the hydraulic cylinder 10 can be extended to rotate the support plate 8 upward and close the communication channel between the detection chamber 101 of the frame 1 and the outside, effectively saving storage space.

[0040] The terms "front," "back," "left," "right," "top," and "bottom" all refer to the figures in the accompanying drawings. Figure 1 Based on the perspective of the observer, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0041] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A visual inspection device for automobile cylinder heads, characterized in that, Includes a frame (1), with a detection chamber (101) on the upper part of the frame (1), the left and right ends of the detection chamber (101) being connected to the outside, and a recycling chamber (102) on the lower part of the frame (1), the front end of the recycling chamber (102) being connected to the outside. A through hole (103) communicating with the recycling chamber (102) is opened at the bottom of the detection chamber (101). A material carrier plate (2) is slidably connected inside the detection chamber (101). Electric slide rails (3) are provided on both the front and rear sides of the detection chamber (101). The front and rear sides of the material carrier plate (2) are respectively fixed to the output ends of the two electric slide rails (3). The left and right sides of the material carrier plate (2) are... The loading trough (202) and unloading trough (203) are respectively provided. The loading plate (2) has a second through hole (201) in the middle that matches the size of the first through hole (103). A clamping mechanism (4) and a detection mechanism (5) are provided above the first through hole (103) in the detection chamber (101). The clamping mechanism (4) is used to cooperate with the loading plate (2) to realize the loading and unloading operation of the cylinder head. The detection mechanism (5) includes an electric slide rail (501). The electric slide rail (501) is installed in the upper part of the detection chamber (101). The output end of the electric slide rail (501) is connected to a multi-axis robotic arm (502). (502) is equipped with a high-definition camera (503) and a marker pen (504) at its end. A transfer mechanism (6) is provided in the middle of the recycling bin (102). Storage units (7) are provided on both the left and right sides of the recycling bin (102) and the transfer mechanism (6). The transfer mechanism (6) is used to receive the cylinder head that is lowered from the through hole (103) and transfer it to the storage unit (7). When the appearance inspection result of the current cylinder head is qualified, the loading plate (2) is driven to move to the left by the electric slide rail (3) until the unloading groove (203) of the loading plate (2) is directly below the cylinder head. At this time, the loading plate (2) is loaded. The slot (202) will extend to the outside of the left side of the frame (1). Then, the next cylinder head to be inspected is placed in the loading slot (202) of the loading plate (2). Then, the loading plate (2) is driven to move to the right by the electric slide rail (3) until the new cylinder head to be inspected in the loading slot (202) is directly below the clamping mechanism (4). At this time, the qualified cylinder head extends to the outside of the right side of the frame (1) along with the unloading slot (203) of the loading plate (2), which makes it easy to take out the qualified cylinder head. Then, the above cylinder head inspection operation can be repeated to perform a visual inspection on the new cylinder head to be inspected in the loading slot (202).

2. The automotive cylinder head visual inspection device according to claim 1, characterized in that, The clamping mechanism (4) includes a bidirectional screw module (401), which is horizontally installed in the upper part of the detection chamber (101). The two output ends of the bidirectional screw module (401) are connected to two cylinders (402). The telescopic rod ends of the two cylinders (402) on the same side are connected to a flipping component. The two flipping components are provided with clamping plates (407) on the side that are close to each other.

3. The automotive cylinder head visual inspection device according to claim 2, characterized in that, The flipping assembly includes a fixed frame (403), which is connected to the output end of the cylinder (402). The fixed frame (403) is equipped with a worm wheel (404), a worm (405) and a motor (406). The worm wheel (404) meshes with the worm (405), and the worm (405) is connected to the motor (406) for transmission. The clamping plate (407) is located on the outside of the fixed frame (403) and is coaxially fixed with the worm wheel (404).

4. The automotive cylinder head visual inspection device according to claim 3, characterized in that, The storage unit (7) includes a storage cabinet (701). Two storage cabinets (701) are respectively arranged on the left and right sides of the transfer mechanism (6) in the recycling bin (102). On the side of the two storage cabinets (701) that are close to each other, multiple storage bins (702) are vertically spaced apart. Positioning rails (703) are provided on the left and right sides of the bottom of the recycling bin (102). The bottom of the two storage cabinets (701) is slidably connected to the two positioning rails (703).

5. The automotive cylinder head visual inspection device according to claim 4, characterized in that, The transfer mechanism (6) includes two vertically arranged electric slide rails (601) that are opposite each other. The output ends of the two electric slide rails (601) are fixed together with a bidirectional fork (602). The bidirectional fork (602) includes a lifting plate (603) that can extend to the left or right. Each storage compartment (702) has two pads (604) at the bottom that are parallel to the direction of movement of the lifting plate (603). The pads (604) are used to support the cylinder head. The distance between the two pads (604) in the storage compartment (702) is set to allow the lifting plate (603) to pass through without losing support for the cylinder head.

6. The automotive cylinder head visual inspection device according to claim 5, characterized in that, The upper left and right sides of the frame (1) are provided with support plates (8). The top surface of the support plate (8) is flush with the bottom surface of the inner side of the detection chamber (101). The top surface of the support plate (8) has two pads (801) parallel to the electric slide rail (3). The loading groove (202) and unloading groove (203) of the loading plate (2) are provided with two clearance grooves (204) corresponding to the pads (801). The height of the top surface of the pads (801) is higher than the height of the inner bottom surface of the loading groove (202) and unloading groove (203) of the loading plate (2). At least one hydraulic cylinder (9) is vertically installed on the front and rear sides of the frame (1). The telescopic rod end of the hydraulic cylinder (9) faces upward and is fixedly connected to the fixed end of the electric slide rail (3) on the same side.

7. The automotive cylinder head visual inspection device according to claim 6, characterized in that, The support plate (8) is rotatably connected to the frame (1). At least one hydraulic cylinder (10) is connected between the support plate (8) and the lower part of the frame (1). The fixed end of the hydraulic cylinder (10) is rotatably connected to the frame (1). The telescopic rod end of the hydraulic cylinder (10) is rotatably connected to the support plate (8). The support plate (8) can rotate upward to close the detection chamber (101) under the drive of the hydraulic cylinder (10).

8. The automotive cylinder head visual inspection device according to claim 7, characterized in that, The top of the inspection chamber (101) is symmetrically equipped with lighting lamps (11), which are used to provide illumination for the inspection mechanism (5) to perform visual inspection of the cylinder head.

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