Engine cylinder cover water channel hole detection device

Abstract

The utility model relates to the technical field of automobile manufacturing, and provides an engine cylinder cover water channel hole detection device. The detection assembly comprises an elastic probe and a photoelectric detector, the elastic probe is arranged on the support, the probe head side of the elastic probe is used for arranging a cylinder cover to be detected, the transmitting end and the receiving end of the photoelectric detector are oppositely arranged on the probe tail side of the elastic probe, and the connecting line between the transmitting end and the receiving end is perpendicular to the elastic probe; the receiving end is provided with a display lamp; the power piece is connected with the support and used for driving the support to move towards the cylinder cover; and the controller is in communication connection with the photoelectric detector. The probe head of the elastic probe is inserted into the water channel hole, the probe tail corresponding to the missing water channel hole protrudes, the missing water channel hole is detected by the photoelectric detector and can be displayed through the display lamp, a corresponding signal is transmitted to the controller, and automatic detection is completed, so that the labor intensity of workers is reduced, and the detection efficiency and the reliability of a detection result are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile manufacturing, in particular to a water channel hole detection device for an engine cylinder cover. Background Art

[0002] During the automotive manufacturing process, the cylinder head is a crucial component of the engine, and its quality directly impacts engine performance and lifespan. Mounted atop the cylinder block, the cylinder head seals the cylinder from above and forms the combustion chamber. Because the cylinder head frequently comes into contact with high-temperature, high-pressure combustion gases, it bears significant thermal and mechanical loads. Therefore, the water channel holes in the cylinder head are crucial for cooling the engine. Defective or missing holes can lead to engine overheating and even serious failure.

[0003] Automobile cylinder heads are usually produced by casting technology. The sand cores used to cast the water channel holes are small in size and low in strength. Therefore, during the casting process, some sand cores may be damaged, resulting in missing water channel holes in the produced cylinder heads.

[0004] Traditionally, the missing or missing water channel holes in automobile cylinder heads are mainly checked visually or manually. Therefore, the cylinder head water channel hole surface needs to be turned over to face the human eye for inspection. This method is inefficient and prone to errors. Utility Model Content

[0005] To address the existing technical issues of traditional automobile cylinder head water channel hole detection, which relies primarily on manual visual inspection to determine whether the water channel hole is missing. Therefore, the cylinder head water channel hole surface must be turned over to face the human eye for inspection, a method that is inefficient and prone to errors. The present invention provides an engine cylinder head water channel hole detection device. The technical solution is as follows:

[0006] Provided is a device for detecting water channel holes in an engine cylinder head, the device comprising:

[0007] Bracket;

[0008] A detection assembly, comprising: an elastic probe and a photoelectric detector, wherein the elastic probe is disposed on the bracket, the needle head side of the elastic probe is used to set the cylinder head to be detected, the transmitting end and the receiving end of the photoelectric detector are relatively disposed on the needle tail side of the elastic probe, and the line connecting the transmitting end and the receiving end is perpendicular to the elastic probe, and the receiving end has a display light;

[0009] a power member connected to the bracket and used to drive the bracket to move toward the cylinder head;

[0010] A controller is communicatively connected with the photodetector.

[0011] Optionally, the bracket includes:

[0012] an end plate, wherein a through hole is provided on the end plate;

[0013] A connecting plate is detachably connected to the end surface of the end plate, a mounting hole is provided on the connecting plate, the elastic probe is provided in the mounting hole, and the elastic probe passes through the through hole.

[0014] Optionally, the number of the connecting plates and the number of the elastic probes are both plural, and the end plates are further provided with adjusting long holes, the length direction of the adjusting long holes being along the length direction of the connecting plates;

[0015] The connecting plate is provided with a docking hole, and the connecting plate is detachably connected to the adjusting long hole of the end plate through a bolt and the docking hole.

[0016] Optionally, the bracket further comprises: a side plate, the side plate being arranged on a side surface of the end plate, and the transmitting end and the receiving end of the photoelectric detector being arranged opposite to each other on the side plate.

[0017] Optionally, the device further comprises an adjusting member, which is arranged on the side plate and can move along the length direction of the elastic probe, and the transmitting end and the receiving end of the photoelectric detector are relatively arranged on the adjusting member.

[0018] Optionally, the power member is arranged on a side of the bracket away from the cylinder head.

[0019] Optionally, the device further comprises: a positioning assembly, which is arranged on a side of the bracket close to the cylinder cover and is used to be inserted into a positioning hole of the cylinder cover.

[0020] Optionally, the device further includes: a display unit, the display unit is communicatively connected to the controller, the controller is capable of sending a missing signal to the display unit, and the display unit is used to display the missing state of the water channel hole.

[0021] Optionally, there are multiple detection components;

[0022] There are also multiple elastic probes in each detection component.

[0023] The beneficial effects of the technical solution provided by the embodiment of the utility model include at least:

[0024] The engine cylinder head water channel hole detection device provided by the embodiment of the utility model uses a power part to insert the needle head of the elastic probe into the water channel hole, so that the needle tail can be retracted. For the missing water channel hole, the needle head of the elastic probe corresponding to the missing water channel hole cannot be inserted, and the needle tail will protrude outward, thereby being detected by the photoelectric detector set on the side of the needle tail, and can be displayed by the display light, and the corresponding signal is transmitted to the controller to complete the automatic detection. The device is used to detect whether the engine cylinder head water channel hole is missing. The detection result is highly reliable, the detection process is fast, the detection cost is low, and it is suitable for large-scale use. The device can reduce the labor intensity of workers, improve detection efficiency, and improve the reliability of detection results. It has high social value and economic significance. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0026] Figure 1 This is a structural diagram of an engine cylinder head water channel hole detection device provided by an embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the main structure of an engine cylinder head water channel hole detection device provided by an embodiment of the utility model;

[0028] Figure 3 This is a schematic top view of the structure of an engine cylinder head water channel hole detection device provided by an embodiment of the utility model;

[0029] Figure 4 It is a left-side structural schematic diagram of an engine cylinder head water channel hole detection device provided by an embodiment of the utility model.

[0030] Reference numerals:

[0031] 100, bracket; 110, end plate; 120, connecting plate; 130, side plate;

[0032] 200, detection component; 210, elastic probe; 211, needle head; 212, needle tail; 220, photoelectric detector; 221, transmitter; 222, receiver;

[0033] 300. Power parts. DETAILED DESCRIPTION

[0034] The technical solution of the present utility model is described below in conjunction with the accompanying drawings.

[0035] In the embodiments of the present invention, words such as "exemplarily" and "for example" are used to indicate examples, illustrations, or explanations. Any embodiment or design described as an "exemplary" in the present invention should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of the word "exemplary" is intended to present concepts in a concrete manner. Furthermore, in the embodiments of the present invention, the expression "and / or" can mean both or either of the two.

[0036] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, a detailed description will be given below with reference to the accompanying drawings and specific embodiments.

[0037] Figure 1 This is a structural diagram of an engine cylinder head water channel hole detection device provided by an embodiment of the utility model; Figure 2 This is a schematic diagram of the main structure of an engine cylinder head water channel hole detection device provided by an embodiment of the utility model; Figure 3 This is a schematic top view of the structure of an engine cylinder head water channel hole detection device provided by an embodiment of the utility model; Figure 4 This is a left-side structural diagram of an engine cylinder head water channel hole detection device provided by an embodiment of the utility model. Figures 1 to 4 The present invention provides an engine cylinder head water channel hole detection device, which includes a bracket 100, a detection assembly 200, and a power member 300. Through the synergistic effect of these structures, it can be used to detect whether the water channel hole on the cast engine cylinder head is missing.

[0038] Specifically, the bracket 100 is the basic supporting structure of the entire detection device, responsible for carrying and fixing the detection component 200 and other related components.

[0039] The aforementioned inspection assembly 200 comprises an elastic probe 210 and a photodetector 220. The elastic probe 210 is mounted on the bracket 100. The probe's tip 211 is positioned on the cylinder head to be inspected and inserted into the water channel hole during the inspection process. Specifically, when the bracket 100 moves the elastic probe 210 toward the cylinder head, if the water channel hole exists, the probe's tip 211 will be able to enter the hole smoothly. If the water channel hole is missing, the probe will be blocked.

[0040] The photodetector 220 consists of a transmitter 221 and a receiver 222. These terminals are positioned opposite each other on the needle tail 212 side of the elastic probe 210, with the line connecting them perpendicular to the elastic probe 210. Furthermore, the receiver 222 includes a display light. This light changes color depending on whether the receiver 222 receives the photoelectric signal from the transmitter 221. For example, after the photodetector 220 is activated, a red light illuminates if the photoelectric signal from the transmitter 221 is received; a green light illuminates if the signal is not received.

[0041] It should be noted that the length of the needle head 211 of the elastic probe 210 can be adjusted based on the required depth of detection. When the needle head 211 is compressed, the needle tail 212 can extend. Specifically, when the needle head 211 is obstructed, the needle tail 212 will deviate from its original position, causing the light emitted by the transmitting end 221 to be unable to be properly received by the receiving end 222, thereby generating a signal change. This layout allows the photodetector 220 to accurately capture the position change of the elastic probe 210 when it is obstructed by the missing water channel hole.

[0042] The power element 300 is connected to the bracket 100 and is used to provide power for the bracket 100 to move toward the cylinder head. By controlling the output of the power element 300, the speed and distance of the bracket 100 moving toward the cylinder head can be precisely controlled, thereby achieving accurate detection of the water channel holes.

[0043] The controller is in communication with the photodetector 220 and is responsible for receiving and processing signals from the photodetector 220. When the photodetector 220 detects that the elastic probe 210 is blocked due to a missing water channel hole, it immediately sends a signal, such as a missing signal, to the controller. After receiving the missing signal, the controller performs a series of logical judgments and processing to ultimately determine whether the water channel hole is missing.

[0044] When the device is in use, it can be placed in any desired position. Taking the needle 211 side of the device as an example, when in use, it is necessary to fix the cylinder cover on the upper side of the device and match each needle 211 of the elastic probe 210 with the waterway hole to be detected. The bracket 100 is pushed by the power part 300, thereby driving the elastic probe 210 to move upward. When the needle 211 is blocked, the needle tail 212 part will deviate from its original position, causing the light emitted by the transmitting end 221 to be unable to be properly received by the receiving end 222, thereby generating a signal change, which in turn causes the display light to show a different color. It should be noted that the elastic probe 210 can be retracted after the detection is completed, will not be damaged, and can be reused.

[0045] The engine cylinder head water channel hole detection device provided by the embodiment of the present utility model can insert the needle head 211 of the elastic probe 210 into the water channel hole through the power part 300, so that the needle tail 212 can be retracted. For the missing water channel hole, the needle head 211 of the elastic probe 210 corresponding to the missing water channel hole cannot be inserted, and the needle tail 212 will protrude outward, thereby being detected by the photoelectric detector 220 set on the side of the needle tail 212, and can be displayed by the display light, and the corresponding signal is transmitted to the controller to complete the automatic detection. The device is used to detect whether the engine cylinder head water channel hole is missing. The detection result is highly reliable, the detection process is fast, the detection cost is low, and it is suitable for large-scale use. The device can reduce the labor intensity of workers, improve detection efficiency, and improve the reliability of detection results. It has high social value and economic significance.

[0046] In an embodiment provided by the present invention, the bracket 100 includes: an end plate 110 and a connecting plate 120 .

[0047] The end plate 110 is provided with a through hole to allow the elastic probe 210 to pass through so that its needle tail 212 can be detected by the photodetector 220. The diameter of the through hole is larger than the diameter of the needle tail 212 of the elastic probe 210, so that the needle tail 212 can pass through it freely without excessive friction or obstruction.

[0048] The connecting plate 120 is detachably connected to the end surface of the end plate 110. This detachable design makes maintenance and component replacement of the detection device more convenient and faster. The connecting plate 120 is provided with a mounting hole, and the elastic probe 210 is positioned in the mounting hole. By positioning the elastic probe 210 in the mounting hole, the stability and accuracy of the probe during the detection process are ensured. The split design of the end plate 110 and the connecting plate 120 makes the installation process of the elastic probe 210 more convenient and improves maintainability.

[0049] In this embodiment, the needle 211 side of the elastic probe 210 is used to set the cylinder head to be inspected, that is, when the cylinder head is placed in the inspection position, the needle 211 of the elastic probe 210 will extend into the water channel hole of the cylinder head. If the water channel hole is missing, the needle 211 of the elastic probe 210 will not be able to enter the hole, thereby triggering the reaction of the photoelectric detector 220.

[0050] Furthermore, in one embodiment of the present invention, the number of connecting plates 120 and elastic probes 210 is multiple, for example, ten. This means that the detection device can simultaneously inspect multiple water channel holes on the engine cylinder head. This parallel detection method significantly improves detection efficiency and shortens detection time. Furthermore, the provision of multiple elastic probes 210 increases detection redundancy and improves detection reliability.

[0051] Furthermore, end plate 110 is provided with an adjustment slot, which extends along the length of connecting plate 120. This slot allows connecting plate 120 to slide and adjust on end plate 110 to a certain degree, ensuring that multiple elastic probes 210 are accurately aligned with the water channels on the cylinder head. By adjusting the position of connecting plate 120, positional deviations caused by manufacturing or installation errors can be easily corrected, thereby ensuring detection accuracy.

[0052] Connecting plate 120 is provided with a docking hole. Bolts are used to removably connect connecting plate 120 to the adjustment slots of end plate 110. Bolts are inserted through the docking holes and secured in place within the adjustment slots, creating a removable connection between connecting plate 120 and end plate 110. This connection is not only secure and reliable, but also facilitates removal of connecting plate 120 for maintenance or replacement when necessary. Furthermore, the presence of the adjustment slots allows the bolts to be moved within a certain range to accommodate adjustments to the position of connecting plate 120.

[0053] Furthermore, in an embodiment of the present invention, the bracket 100 further includes a side plate 130 , which is disposed on a side of the end plate 110 , and the transmitting end 221 and the receiving end 222 of the photodetector 220 are relatively disposed on the side plate 130 .

[0054] The side panels 130 serve to provide a stable and suitable mounting platform for securing the transmitting end 221 and receiving end 222 of the photodetector 220. This design allows the photodetector 220 to more accurately align with the elastic probe 210, ensuring that even minor displacements of the elastic probe 210 caused by the missing water channel hole can be captured during the detection process.

[0055] The transmitting end 221 and receiving end 222 of the photodetector 220 are positioned opposite each other on the side panel 130, with the line connecting them perpendicular to the elastic probe 210. This arrangement ensures that when the elastic probe 210 is blocked due to the missing water channel hole, the slight displacement of the needle tail 212 can be immediately captured by the photodetector 220 and converted into an electrical signal.

[0056] Mounting the photodetector 220 on the side panel 130 allows its transmitter 221 and receiver 222 to maintain a more stable relative position, reducing interference from external factors such as vibration and temperature fluctuations. This helps improve detection accuracy and reliability. Furthermore, the design of the side panel 130 facilitates maintenance and calibration of the photodetector 220, ensuring its long-term stable operation.

[0057] Furthermore, in an embodiment provided by the present invention, the device also includes an adjusting member, which is arranged on the side plate 130 and can move along the length direction of the elastic probe 210, and the transmitting end 221 and the receiving end 222 of the photodetector 220 are relatively arranged on the adjusting member.

[0058] The photodetector 220 can be moved by the adjusting member, thereby accurately adjusting the position of the photodetector 220 relative to the elastic probe 210 to ensure that the photodetector 220 can accurately capture the displacement change of the elastic probe 210 caused by the missing water channel hole.

[0059] It should be noted that the placement position of the device can be set as needed. For example, the device can be set with the end plate 110 on top and the side plate 130 on the bottom. When working, the cylinder head is set above the end plate 110. It can also be set in other directions, which is not limited in this embodiment.

[0060] In any of the above-mentioned embodiments provided by the present invention, the power member 300 is arranged on the side of the bracket 100 away from the cylinder head, so that the action of the power member 300 pushing or pulling the bracket 100 and the detection assembly 200 is performed in an area away from the cylinder head to be detected. This layout helps to reduce the direct impact of the vibration and impact force generated by the power member 300 during operation on the cylinder head and the detection results. At the same time, it also provides a safer operating space for operators, reduces the safety risks caused by accidental touch or accidental collision, and makes maintenance and debugging work more convenient. Specifically, the power member 300 can be an actuator such as a cylinder or an electric cylinder, which is not limited in this embodiment.

[0061] In any of the above-mentioned embodiments provided by the present invention, the device further includes: a positioning component, which is arranged on the side of the bracket 100 close to the cylinder head and is used to be inserted into the positioning hole of the cylinder head, so as to achieve precise positioning between the detection device and the cylinder head. This positioning method can ensure that during the detection process, the elastic probe 210 in the detection component 200 can accurately correspond to the water channel hole on the cylinder head, reducing the detection error caused by position deviation. The use of the positioning component also simplifies the detection operation process. The operator only needs to insert the positioning component into the positioning hole of the cylinder head to transmit the corresponding signal to the controller to complete the positioning between the automated detection device and the cylinder head. This step greatly reduces the time and workload of manual adjustment and calibration, and improves the detection efficiency.

[0062] Among them, the positioning hole of the cylinder head can be the original hole of the cylinder head, and there is no need to drill a new hole, and it will not affect the structure of the cylinder head.

[0063] In any of the above embodiments of the present invention, the device further includes a display unit, the display unit being communicatively connected to the controller, the controller being capable of sending a missing signal to the display unit, and the display unit being configured to display the missing status of the water channel hole. For example, the controller being capable of sending the missing signal to the display unit, the display unit may display the cylinder head number corresponding to the missing signal.

[0064] The display unit establishes a communication link with the controller. Its main function is to receive missing signals from the controller and display them intuitively on the screen in the form of graphics, text, or numbers. In this way, the operator can clearly understand the missing status of the cylinder head water channel hole at a glance.

[0065] The addition of a display unit significantly enhances operational convenience. Operators can directly determine the status of the cylinder head water channel holes based on the information displayed on the screen, eliminating the need for complex analysis or interpretation. This intuitive and rapid feedback significantly improves inspection efficiency and reduces the possibility of human error.

[0066] In any of the above embodiments provided by the present invention, the device further includes: an alarm unit, the alarm unit is communicatively connected to the controller, the controller is capable of sending a missing signal to the alarm unit, and the alarm unit is used to issue an alarm based on the missing signal. The alarm unit establishes a communication connection with the controller, and its main function is to receive missing signals from the controller and issue an alarm based on these signals. The alarm unit can be an audible and visual alarm, etc., so that the alarm can be a sound, light signal or other form of warning, which is used to immediately attract the attention of the operator and remind them that there is a missing or abnormality in the water channel hole of the cylinder head. This instant feedback mechanism helps the operator to detect the problem in time and take appropriate measures to avoid the problem from expanding or causing more serious consequences.

[0067] In any of the above-mentioned embodiments provided by the present invention, there are multiple detection assemblies 200; and there are also multiple elastic probes 210 in each detection assembly 200. For example, based on the design of a certain cylinder head, the multiple elastic probes 210 in a detection assembly 200 form a row, corresponding to one photoelectric detector 220. Correspondingly, the multiple elastic probes 210 in multiple detection assemblies 200 form multiple rows, corresponding to multiple photoelectric detectors 220. Thus, the combination of multiple rows of elastic probes 210 and multiple groups of photoelectric detectors 220 in multiple detection assemblies 200 can measure water channel holes of various arrangements on the cylinder head. This structure improves the detection range of the detection device.

[0068] The engine cylinder head water channel hole detection device provided by the embodiment of the present utility model can insert the needle head 211 of the elastic probe 210 into the water channel hole through the power part 300, so that the needle tail 212 can be retracted. For the missing water channel hole, the needle head 211 of the elastic probe 210 corresponding to the missing water channel hole cannot be inserted, and the needle tail 212 will protrude outward, thereby being detected by the photoelectric detector 220 set on the side of the needle tail 212, and can be displayed by the display light, and the corresponding signal is transmitted to the controller to complete the automatic detection. The device is used to detect whether the engine cylinder head water channel hole is missing. The detection result is highly reliable, the detection process is fast, the detection cost is low, and it is suitable for large-scale use. The device can reduce the labor intensity of workers, improve detection efficiency, and improve the reliability of detection results. It has high social value and economic significance.

[0069] Furthermore, the device can be used to automatically detect the presence of water channel holes in automobile cylinder heads. Furthermore, it is suitable for detecting cylinder heads with one or more completely missing water channel holes, particularly when the water channel holes are not facing the human face, making visual inspection inconvenient. Its structure and principle are simple, easy to implement, and cost-effective to manufacture. Compared to image recognition, this device is inexpensive and has been proven to meet practical requirements in actual testing.

[0070] It should be understood that the term "and / or" as used herein simply describes a relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A alone, A and B together, or B alone. A and B can be singular or plural. Furthermore, the character " / " as used herein generally indicates an "or" relationship between the associated objects, but it may also indicate an "and / or" relationship. For specific understanding, please refer to the context.

[0071] In this utility model, "at least one" means one or more, and "plurality" means two or more. "At least one of the following" or similar expressions refers to any combination of these items, including any combination of single or plural items. For example, "at least one of a, b, or c" can mean: a, b, c, ab, ac, bc, or abc, where a, b, and c can be single or plural.

[0072] It should be understood that in various embodiments of the present invention, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0073] 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 modifications or substitutions that can be easily conceived by a person 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 based on the scope of protection of the claims.

Claims

1. An engine cylinder head water channel hole detection device, characterized in that: The device comprises: Bracket; A detection assembly, comprising: an elastic probe and a photoelectric detector, wherein the elastic probe is disposed on the bracket, the needle head side of the elastic probe is used to set the cylinder head to be detected, the transmitting end and the receiving end of the photoelectric detector are relatively disposed on the needle tail side of the elastic probe, and the line connecting the transmitting end and the receiving end is perpendicular to the elastic probe, and the receiving end has a display light; a power member connected to the bracket and used to drive the bracket to move toward the cylinder head; A controller is communicatively connected with the photodetector.

2. The engine cylinder head water channel hole detection device according to claim 1, characterized in that: The bracket comprises: an end plate, wherein a through hole is provided on the end plate; A connecting plate is detachably connected to the end surface of the end plate, a mounting hole is provided on the connecting plate, the elastic probe is provided in the mounting hole, and the elastic probe passes through the through hole.

3. The engine cylinder head water channel hole detection device according to claim 2, characterized in that: There are multiple connecting plates and multiple elastic probes, and the end plates are further provided with adjusting long holes, the length direction of the adjusting long holes being along the length direction of the connecting plates; The connecting plate is provided with a docking hole, and the connecting plate is detachably connected to the adjusting long hole of the end plate through a bolt and the docking hole.

4. The engine cylinder head water channel hole detection device according to claim 2, characterized in that: The bracket further includes a side plate, which is arranged on the side of the end plate, and the transmitting end and the receiving end of the photoelectric detector are arranged on the side plate opposite to each other.

5. The engine cylinder head water channel hole detection device according to claim 4, characterized in that: The device further comprises an adjusting member, which is arranged on the side plate and can move along the length direction of the elastic probe. The transmitting end and the receiving end of the photoelectric detector are relatively arranged on the adjusting member.

6. The engine cylinder head water channel hole detection device according to any one of claims 1 to 5, characterized in that: The power component is arranged on a side of the bracket away from the cylinder cover.

7. The engine cylinder head water channel hole detection device according to any one of claims 1 to 5, characterized in that: The device further comprises: a positioning assembly, which is arranged on a side of the bracket close to the cylinder cover and is used for being inserted into a positioning hole of the cylinder cover.

8. The engine cylinder head water channel hole detection device according to any one of claims 1 to 5, characterized in that: The device further includes: a display unit, which is communicatively connected to the controller. The controller can send a missing signal to the display unit, and the display unit is used to display the missing state of the water channel hole.

9. The engine cylinder head water channel hole detection device according to any one of claims 1 to 5, characterized in that: There are multiple detection components; There are also multiple elastic probes in each detection component.

Images