Cylinder cover thickness detection device and cylinder cover thickness detection method

Abstract

The invention provides a cylinder cover thickness detection device and a cylinder cover thickness detection method. The cylinder cover thickness detection device comprises a base; the conveying device is arranged on the machine base in a lifting manner; the positioning assembly comprises at least two positioning structures; the thickness detection device comprises at least two detection assemblies, the at least two detection assemblies are respectively used for detecting the thicknesses of different positions on the cylinder cover, each detection assembly comprises a first detection structure and a second detection structure, a thickness detection space is formed between the first detection structure and the second detection structure, and the size of the thickness detection space is adjustable; at any detection assembly, the thickness value T of the cylinder cover at the position meets the following relation: T = C-MU-MT; mU is the detection value of the first detection structure, MT is the detection value of the second detection structure, C is the calibration value of the position, and the thickness of the cylinder cover is the average value of the thickness values of all the detection assemblies. The cylinder cover thickness measuring device solves the problems that in the prior art, the labor intensity is increased and the measuring accuracy is difficult to guarantee due to manual cylinder cover thickness measurement.

Description

Technical Field

[0001] The present invention relates to the technical field of cylinder head thickness measurement, and in particular to a cylinder head thickness detection device and a cylinder head thickness detection method. Background Art

[0002] At present, the thickness of the cylinder head is one of the important indicators for evaluating the quality and performance of the cylinder head. By testing the thickness of the cylinder head on the production line, deviations or defects that may occur in the cylinder head production process can be discovered in time, so that corresponding measures can be taken to adjust or repair them to ensure that the product meets the design requirements and quality standards.

[0003] In the prior art, the cylinder head thickness is detected by manually moving the cylinder head to be inspected from the production line to a measuring marble platform, placing the cylinder head flat, and using a vernier height gauge to measure the thickness at multiple positions on the cylinder head. Afterwards, the cylinder head to be inspected is moved offline and inspected using a three-coordinate measuring instrument.

[0004] However, the above-mentioned method for measuring the cylinder head thickness requires manual participation and is labor-intensive, resulting in low measurement efficiency and difficulty in ensuring thickness measurement accuracy. Summary of the invention

[0005] The main purpose of the present invention is to provide a cylinder head thickness detection device and a cylinder head thickness detection method to solve the problem in the prior art that manual measurement of the cylinder head thickness not only increases the labor intensity but also makes it difficult to ensure the measurement accuracy.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a cylinder head thickness detection device is provided, comprising: a machine base; a conveying device, which is movably arranged on the machine base for transporting the cylinder head; a positioning assembly, which is arranged on the machine base, and the positioning assembly comprises at least two positioning structures, and the at least two positioning structures cooperate with the cylinder head limiter; a thickness detection device, comprising at least two detection assemblies, and the at least two detection assemblies are respectively used to detect the thickness at different positions on the cylinder head, each detection assembly comprises a first detection structure and a second detection structure which are arranged relatively, and the first detection structure is located above the second detection structure to form a thickness detection space between the first detection structure and the second detection structure, and the size of the thickness detection space can be adjusted for installing the cylinder head; wherein, at any detection assembly, the thickness value T of the cylinder head at that location satisfies the following relationship: T=CM U -M T ;M U is the detection value of the first detection structure, M T is the detection value of the second detection structure, C is the calibration value at this position, and the thickness of the cylinder head is the average thickness value of all detection components.

[0007] Furthermore, there are three detection components, and the detection positions of the three detection components form a triangle.

[0008] Furthermore, the conveying device includes: a conveying structure, the conveying structure includes a main body, a conveying part and a first driving device, the conveying part is movably arranged on the main body for transporting the cylinder cover; the first driving device is drivingly connected to the conveying part to drive the conveying part to move relative to the main body; a lifting mechanism is connected to the main body, at least part of the lifting mechanism is liftable to drive the conveying part and the cylinder cover to be lifted and lowered.

[0009] Furthermore, the first detection structure and / or the second detection structure is a displacement sensor.

[0010] Furthermore, the cylinder head thickness detection device also includes: a second driving device, which is drivingly connected to the first detection structure to drive the first detection structure to move toward or away from the second detection structure; and / or the second driving device is drivingly connected to the second detection structure to drive the second detection structure to move toward or away from the first detection structure.

[0011] Furthermore, the cylinder head thickness detection device includes: a blocking cylinder, including a movably arranged blocking part; and a control module, electrically connected to the blocking cylinder; wherein, in an initial state, the blocking part is in an extended state to block the cylinder head; after the control module receives a thickness detection requirement signal sent by the cylinder head, the control module controls the blocking part to move from an extended state to a retracted state to avoid the cylinder head.

[0012] Furthermore, the cylinder head thickness detection device also includes: a detection device, used to detect whether the cylinder head moves within a preset range; a control module, which is electrically connected to the detection device, the first drive device and the lifting mechanism; wherein, after the detection device detects that the conveying part drives the cylinder head to move within the preset range and waits for a preset time period, the control module controls the first drive device to stop running and controls the lifting mechanism to drive the cylinder head to descend to a preset height until the positioning assembly cooperates with the cylinder head limit.

[0013] Furthermore, the thickness detection device also includes: a mounting frame, on which all first detection structures are arranged; wherein the mounting frame has a through hole, and the detection end of the first detection structure can be telescopically inserted into the through hole; and a second driving device is drivingly connected to the mounting frame to drive all first detection structures to perform lifting and lowering movements through the mounting frame.

[0014] Furthermore, there are two positioning structures, one positioning structure is a cylindrical pin shaft, and the other positioning structure is a polygonal pin shaft.

[0015] According to another aspect of the present invention, a cylinder head thickness detection method is provided, which is applicable to the above-mentioned cylinder head thickness detection device, and the cylinder head thickness detection method includes: after the control module of the cylinder head thickness detection device receives a thickness detection demand signal, controlling the conveying device to start, so as to transport the cylinder head through the conveying device; after the cylinder head moves to a preset range and waits for a preset time period, controlling the conveying device to stop conveying and drive the cylinder head to descend until the positioning assembly cooperates with the cylinder head limit; thereafter, adjusting the size of the thickness detection space of the thickness detection device, so as to install the cylinder head in the thickness detection space, and detecting the thickness of the cylinder head through the detection assembly.

[0016] According to the technical solution of the present invention, the cylinder head thickness detection device includes a machine base, a conveying device, a positioning assembly and a thickness detection device. The conveying device can be lifted and lowered on the machine base to transport the cylinder head. The positioning assembly is arranged on the machine base, and the positioning assembly includes at least two positioning structures, and at least two positioning structures cooperate with the cylinder head limit. The thickness detection device includes at least two detection assemblies, and at least two detection assemblies are respectively used to detect the thickness at different positions on the cylinder head. Each detection assembly includes a first detection structure and a second detection structure arranged relatively, and the first detection structure is located above the second detection structure to form a thickness detection space between the first detection structure and the second detection structure. The size of the thickness detection space can be adjusted to install the cylinder head. In this way, when the thickness of the cylinder head needs to be detected, the cylinder head is first transported to a preset range by the conveying device, and then the conveying device is controlled to drive the cylinder head to descend until it descends to the cylinder head and cooperates with the at least two positioning structures. At this time, the thickness detection space of the thickness detection device is adjusted so that the detection ends of the first detection structure and the second detection structure of each detection assembly are in contact with the cylinder head to detect the thickness of the cylinder head. Among them, at any detection component, the thickness value T of the cylinder head at that location satisfies the following relationship: T = CM U -M T ;M U is the detection value of the first detection structure, M T is the detection value of the second detection structure, C is the calibration value at this position, and the thickness of the cylinder head is the average thickness value of all detection components.

[0017] Compared with the manual measurement method in the prior art, the cylinder head thickness detection device in the present application automatically measures the thickness of the cylinder head, which not only reduces the labor intensity of the staff, but also improves the thickness measurement accuracy and improves work efficiency, thereby solving the problem in the prior art that manual measurement of the thickness of the cylinder head not only increases the labor intensity but also makes it difficult to ensure the measurement accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a cylinder head thickness detection device according to the present invention is shown;

[0020] Figure 2 Shows Figure 1 A schematic diagram of the three-dimensional structure of the cylinder head thickness detection device from another angle;

[0021] Figure 3 Shows Figure 1 A front view of the cylinder head, the detection component and the positioning component of the cylinder head thickness detection device after being assembled;

[0022] Figure 4 A flow chart of an embodiment of a cylinder head thickness detection method according to the present invention is shown.

[0023] The above drawings include the following reference numerals:

[0024] 10. Machine base;

[0025] 20. Conveying device; 21. Conveying structure; 22. Lifting mechanism;

[0026] 30. Cylinder head;

[0027] 40. Positioning assembly; 41. Cylindrical pin; 42. Polygonal pin;

[0028] 50. Thickness detection device; 51. Detection assembly; 511. First detection structure; 512. Second detection structure; 52. Mounting frame;

[0029] 60. A second driving device;

[0030] 70. Block the cylinder;

[0031] 80. Detection device. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0033] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0034] In the present invention, unless otherwise specified, the directional words used, such as "up" and "down", usually refer to the directions shown in the drawings, or to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0035] In order to solve the problem in the prior art that manual measurement of cylinder head thickness not only increases labor intensity but also makes it difficult to ensure measurement accuracy, the present application provides a cylinder head thickness detection device and a cylinder head thickness detection method.

[0036] like Figures 1 to 3 As shown, the cylinder head thickness detection device includes a base 10, a conveying device 20, a positioning assembly 40 and a thickness detection device 50. The conveying device 20 can be raised and lowered on the base 10 to transport the cylinder head 30. The positioning assembly 40 is arranged on the base 10, and the positioning assembly 40 includes at least two positioning structures, and at least two positioning structures cooperate with the cylinder head 30 to limit the position. The thickness detection device 50 includes at least two detection assemblies 51, and the at least two detection assemblies 51 are respectively used to detect the thickness at different positions on the cylinder head 30, and each detection assembly 51 includes a first detection structure 511 and a second detection structure 512 that are relatively arranged, and the first detection structure 511 is located above the second detection structure 512 to form a thickness detection space between the first detection structure 511 and the second detection structure 512, and the size of the thickness detection space can be adjusted to install the cylinder head 30. Among them, at any detection assembly 51, the thickness value T of the cylinder head 30 at that location satisfies the following relationship: T=CM U -M T ;M U is the detection value of the first detection structure 511, M T is the detection value of the second detection structure 512 , C is the calibration value at this position, and the thickness of the cylinder head 30 is the average thickness value of all the detection components 51 .

[0037] By applying the technical solution of this embodiment, when the thickness of the cylinder head 30 needs to be inspected, the cylinder head 30 is first transported to a preset range by the conveying device 20, and then the conveying device 20 is controlled to drive the cylinder head 30 to descend until it descends to the point where the cylinder head 30 is limited by at least two positioning structures. At this time, the thickness detection space of the thickness detection device 50 is adjusted so that the detection ends of the first detection structure 511 and the second detection structure 512 of each detection component 51 are in contact with the cylinder head 30 to detect the thickness of the cylinder head 30. Among them, at any detection component 51, the thickness value T of the cylinder head 30 at that location satisfies the following relationship: T = CM U -M T ;M Uis the detection value of the first detection structure 511, M T is the detection value of the second detection structure 512 , C is the calibration value at this position, and the thickness of the cylinder head 30 is the average thickness value of all the detection components 51 .

[0038] Compared with the manual measurement method in the prior art, the cylinder head thickness detection device in this embodiment automatically measures the thickness of the cylinder head 30, which not only reduces the labor intensity of the staff, but also improves the thickness measurement accuracy and improves work efficiency, thereby solving the problem in the prior art that manual measurement of the thickness of the cylinder head not only increases the labor intensity but also makes it difficult to ensure the measurement accuracy.

[0039] In this embodiment, the cylinder head thickness detection device can realize online high-precision inspection and measurement of the thickness between the upper and lower planes of the cylinder head 30 .

[0040] In this embodiment, there are three detection components 51, and the detection positions of the three detection components 51 are arranged around a triangle. In this way, through the triangular layout, the thickness of the cylinder head 30 can be more comprehensively detected, and detection errors caused by local deformation or wear can be avoided, thereby improving the accuracy of thickness detection.

[0041] It should be noted that the number of the detection components 51 is not limited thereto and can be adjusted according to working conditions and usage requirements. Optionally, the number of the detection components 51 is four, five, six, or more.

[0042] like Figure 1 As shown, the conveying device 20 includes a conveying structure 21 and a lifting mechanism 22. Among them, the conveying structure 21 includes a main body, a conveying part and a first driving device. The conveying part is movably arranged on the main body for transporting the cylinder head 30; the first driving device is drivingly connected to the conveying part to drive the conveying part to move relative to the main body. The lifting mechanism 22 is connected to the main body, and at least part of the lifting mechanism 22 can be lifted to drive the conveying part and the cylinder head 30 to be lifted. In this way, the above arrangement can realize the automatic conveying and positioning of the cylinder head 30, reduce manual operations, and improve the degree of automation of the production line. At the same time, the above arrangement makes the structure of the conveying device 20 simpler, easier to process and realize, and reduces the processing cost and difficulty of the conveying device 20.

[0043] Optionally, the first driving device is a motor.

[0044] Optionally, the lifting mechanism 22 is a driving cylinder.

[0045] In this embodiment, the lifting mechanism 22 is a pneumatic cylinder.

[0046] Optionally, the first detection structure 511 and / or the second detection structure 512 is a displacement sensor. In this way, the displacement sensor has the characteristics of high precision and fast response, and can accurately detect the thickness of the cylinder head 30 in real time, thereby improving the quality control level of the cylinder head 30.

[0047] In this embodiment, the first detection structure 511 and the second detection structure 512 are both displacement sensors.

[0048] Optionally, the cylinder head thickness detection device also includes a second drive device 60. The second drive device 60 is connected to the first detection structure 511 to drive the first detection structure 511 to move toward or away from the second detection structure 512; and / or, the second drive device 60 is connected to the second detection structure 512 to drive the second detection structure 512 to move toward or away from the first detection structure 511. In this way, through the adjustment of the second drive device 60, it can adapt to cylinder heads 30 of different thicknesses, improve the versatility and flexibility of the detection device, and is suitable for the detection of various different models of cylinder heads. At the same time, the above-mentioned arrangement makes the connection method of the second drive device 60 more diverse to meet different usage requirements and working conditions, and also improves the processing flexibility of the staff.

[0049] In this embodiment, the second driving device 60 is drivingly connected to the first detection structure 511 to drive the first detection structure 511 to move toward or away from the second detection structure 512 .

[0050] Optionally, the second driving device 60 is a driving cylinder.

[0051] In this embodiment, the second driving device 60 is a pneumatic cylinder.

[0052] like Figure 1 and Figure 2 As shown, the cylinder head thickness detection device includes a blocking cylinder 70 and a control module. The blocking cylinder 70 includes a movably arranged blocking part, and the control module is electrically connected to the blocking cylinder 70. In the initial state, the blocking part is in an extended state to block the cylinder head 30; after the control module receives the thickness detection demand signal sent by the cylinder head 30, the control module controls the blocking part to move from the extended state to the retracted state to avoid the cylinder head 30. In this way, the above-mentioned setting can prevent the unprepared cylinder head 30 from entering the detection area, ensure the orderly progress of the detection process, effectively avoid production accidents caused by equipment misoperation, and improve the production safety level.

[0053] like Figure 1 and Figure 2As shown, the cylinder head thickness detection device also includes a detection device 80 and a control module. The detection device 80 is used to detect whether the cylinder head 30 moves to a preset range. The control module is electrically connected to the detection device 80, the first drive device and the lifting mechanism 22. Among them, after the detection device 80 detects that the conveying part drives the cylinder head 30 to move to a preset range and waits for a preset time period, the control module controls the first drive device to stop running and controls the lifting mechanism 22 to drive the cylinder head 30 to descend to a preset height until the positioning assembly 40 and the cylinder head 30 are limited and matched. In this way, the above-mentioned setting can ensure that the cylinder head 30 is accurately positioned before detection, improve the accuracy and reliability of detection, ensure the precision and consistency of cylinder head detection, improve product quality, and reduce production costs caused by unqualified products.

[0054] like Figure 1 and Figure 2 As shown, the thickness detection device 50 also includes a mounting frame 52, and all the first detection structures 511 are arranged on the mounting frame 52. Among them, the mounting frame 52 has a through hole, and the detection end of the first detection structure 511 can be telescopically penetrated in the through hole; the second drive device 60 is connected to the mounting frame 52 to drive all the first detection structures 511 to perform lifting and lowering movements through the mounting frame 52. In this way, all the first detection structures 511 are installed on the mounting frame 52, so that the disassembly and assembly of the first detection structure 511 is easier and simpler, and the difficulty of disassembly and assembly is reduced. At the same time, the above-mentioned arrangement makes the disassembly and assembly of the second drive device 60 and the first detection structure 511 easier and simpler.

[0055] Optionally, there are two positioning structures, one of which is a cylindrical pin 41, and the other is a polygonal pin 42. In this way, through the combined positioning method of the cylindrical pin 41 and the polygonal pin 42, the cylinder head 30 can be positioned more accurately, avoiding detection errors caused by inaccurate positioning, thereby improving the reliability of the detection results, and having a significant effect on improving the quality control level of key components such as the engine cylinder head.

[0056] In this embodiment, the above-mentioned positioning method of the cylindrical pin 41 and the polygonal pin 42 is a "one-face two-pin" positioning method, which ensures that the detection positions of all cylinder heads are consistent, facilitating thickness detection.

[0057] like Figure 4 As shown, the present application also provides a cylinder head thickness detection method, which is applicable to the above-mentioned cylinder head thickness detection device, and the cylinder head thickness detection method includes:

[0058] After the control module of the cylinder head thickness detection device receives the thickness detection demand signal, the conveying device is controlled to start so as to transport the cylinder head through the conveying device; after the cylinder head moves to a preset range and waits for a preset time period, the conveying device is controlled to stop conveying and drive the cylinder head to descend until the positioning assembly cooperates with the cylinder head limit; thereafter, the size of the thickness detection space of the thickness detection device is adjusted so as to install the cylinder head in the thickness detection space, and the thickness of the cylinder head is detected by the detection assembly.

[0059] Specifically, the above-mentioned cylinder head thickness detection method realizes accurate detection of the cylinder head 30 through automated control, which not only improves the detection efficiency, but also ensures the accuracy of the detection results, thereby significantly improving the efficiency and accuracy of cylinder head thickness detection, and has significant benefits for improving the production quality and production efficiency of engine cylinder heads. At the same time, it can also adapt to the special needs of different industries for cylinder head detection, and has broad application prospects. Especially when faced with high-precision and high-speed detection requirements, it can give full play to its advantages, improve overall production efficiency, and reduce production costs, providing strong technical support for industries such as engine manufacturing.

[0060] In this embodiment, after the thickness detection of the cylinder head 30 is completed, the lifting mechanism 22 drives the conveying structure 21 to rise, and the blocking cylinder 70 is restored to the initial state to wait for the next cylinder head 30 .

[0061] In this embodiment, before the cylinder head thickness detection device detects the thickness of the cylinder head, it needs to be calibrated first. The specific calibration method is as follows:

[0062] Select a qualified cylinder head and obtain the actual thickness value of the cylinder head, input the actual thickness value into the calibration value position of the corresponding position of the control system, and then manually place the cylinder head into the cylinder head thickness detection device. After positioning on the positioning assembly 40, the second drive device 60 drives the first detection structure 511 to extend, and the six displacement sensors are in place, and the extension position of all displacement sensors at this time is set as the measurement zero position. After the calibration is completed, the calibration cylinder head is taken out, the system returns to the original position, and waits for the detection cylinder head to enter the detection.

[0063] Specifically, the cylinder head thickness detection method is as follows:

[0064] S1: Block the cylinder from extending and wait for the cylinder head to enter.

[0065] S2: The cylinder head enters the cylinder head thickness detection device.

[0066] Before the cylinder head of the previous process flows into this process, a thickness detection requirement signal must be sent to the control module. The control module sends a release permission signal to the previous process. At this time, the first drive device starts and the conveying part drives the cylinder head to move. When the detection device 80 detects that the cylinder head moves to the preset range, the first drive device stops after a delay of 1s.

[0067] S3: The lifting mechanism descends.

[0068] The cylinder head enters the conveying structure, and after the first driving device stops, the lifting mechanism drives the conveying structure and the cylinder head to fall, and the cylinder head falls onto the positioning structure. At this time, the detection end of the second detection structure 512 touches the lower plane of the cylinder head.

[0069] S4: The second driving device extends to make the detection end of the first detection structure 511 touch the upper plane of the cylinder cover.

[0070] S5: The control module calculates the thickness value: The control module collects the measurement values ​​of the upper and lower planes of the cylinder head by the displacement sensor, and calculates the thickness of the cylinder head according to the following formula:

[0071] T1=C1-M U1 -M T1 (Formula 1)

[0072] T2=C2-M U2 -M T2 (Formula 2)

[0073] T3=C3-M U3 -M T3 (Formula 3)

[0074] T=(T1+T2+T3) / 3 (Formula 4)

[0075] R U =Max(M U1 ,M U2 ,M U3 )-Min(M U1 ,M U2 ,M U3 ) (Formula 5)

[0076] R T =Max(M T1 ,M T2 ,M T3 )-Min(M T1 ,M T2 ,M T3 ) (Formula 6)

[0077] Wherein, T1 is the thickness value at position 1 on the cylinder head, T2 is the thickness value at position 2 on the cylinder head, and T3 is the thickness value at position 2 on the cylinder head. C1 is the calibration value at position 1 on the cylinder head, C2 is the calibration value at position 2 on the cylinder head, and C3 is the calibration value at position 3 on the cylinder head. U1 is the measured value of the second detection structure 512 at position 1 on the cylinder head, M U2 is the measured value of the second detection structure 512 at position 2 on the cylinder head, MU3 is the measured value of the second detection structure 512 at position 3 on the cylinder head, M T1 is the measured value of the first detection structure 511 at position 1 on the cylinder head, M T2 is the measured value of the first detection structure 511 at position 2 on the cylinder head, M T3 is the measured value of the first detection structure 511 at position 3 on the cylinder head, R U is the lower plane extreme value of the cylinder head, R T is the extreme value of the lower plane of the cylinder head.

[0078] Specifically, the calculated thickness value at each position, the measured value of each sensor, and the average measured value of the upper and lower planes are compared with the product reference value to determine whether the cylinder head thickness is qualified or not. Qualified cylinder heads continue to the next step, and unqualified cylinder heads are prompted for manual processing.

[0079] S6: The second driving device retreats to make the detection end of the first detection structure 511 leave the upper plane of the cylinder cover.

[0080] S7: The lifting mechanism rises.

[0081] S8: Block the cylinder to return so that the cylinder head that has passed the thickness inspection can wait to enter the next process.

[0082] S9: The cylinder head leaves the cylinder head thickness detection device.

[0083] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0084] The cylinder head thickness detection device includes a machine base, a conveying device, a positioning assembly and a thickness detection device. The conveying device can be lifted and lowered on the machine base to transport the cylinder head. The positioning assembly is arranged on the machine base, and the positioning assembly includes at least two positioning structures, and at least two positioning structures cooperate with the cylinder head limit. The thickness detection device includes at least two detection assemblies, and at least two detection assemblies are respectively used to detect the thickness at different positions on the cylinder head. Each detection assembly includes a first detection structure and a second detection structure that are relatively arranged. The first detection structure is located above the second detection structure to form a thickness detection space between the first detection structure and the second detection structure. The size of the thickness detection space can be adjusted to install the cylinder head. In this way, when the thickness of the cylinder head needs to be detected, the cylinder head is first transported to a preset range by the conveying device, and then the conveying device is controlled to drive the cylinder head to descend until it descends to the cylinder head and cooperates with the at least two positioning structures. At this time, the thickness detection space of the thickness detection device is adjusted so that the detection ends of the first detection structure and the second detection structure of each detection assembly are in contact with the cylinder head to detect the thickness of the cylinder head. Among them, at any detection component, the thickness value T of the cylinder head at that location satisfies the following relationship: T = CM U -MT ;M U is the detection value of the first detection structure, M T is the detection value of the second detection structure, C is the calibration value at this position, and the thickness of the cylinder head is the average thickness value of all detection components.

[0085] Compared with the manual measurement method in the prior art, the cylinder head thickness detection device in the present application automatically measures the thickness of the cylinder head, which not only reduces the labor intensity of the staff, but also improves the thickness measurement accuracy and improves work efficiency, thereby solving the problem in the prior art that manual measurement of the thickness of the cylinder head not only increases the labor intensity but also makes it difficult to ensure the measurement accuracy.

[0086] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0087] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0088] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0089] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cylinder head thickness detection device, characterized in that: include: A machine base (10); A conveying device (20), the conveying device (20) being liftably disposed on the machine base (10) for transporting the cylinder head (30); A positioning assembly (40) is arranged on the machine base (10), the positioning assembly (40) comprising at least two positioning structures, at least two of the positioning structures being in position-limiting cooperation with the cylinder cover (30); A thickness detection device (50) comprising at least two detection assemblies (51), wherein the at least two detection assemblies (51) are respectively used to detect the thickness at different positions on the cylinder head (30), each of the detection assemblies (51) comprising a first detection structure (511) and a second detection structure (512) arranged opposite to each other, wherein the first detection structure (511) is located above the second detection structure (512) to form a thickness detection space between the first detection structure (511) and the second detection structure (512), wherein the size of the thickness detection space is adjustable to be used for installing the cylinder head (30); Wherein, at any detection component (51), the thickness value T of the cylinder head (30) at that location satisfies the following relationship: T = CM U -M T ;M U is the detection value of the first detection structure (511), M T is the detection value of the second detection structure (512), C is the calibration value at this position, and the thickness of the cylinder cover (30) is the average thickness value of all the detection components (51).

2. The cylinder head thickness detection device according to claim 1, characterized in that: There are three detection components (51), and the detection positions of the three detection components (51) surround and form a triangle.

3. The cylinder head thickness detection device according to claim 1, characterized in that: The conveying device (20) comprises: A conveying structure (21), the conveying structure (21) comprising a body, a conveying portion and a first driving device, the conveying portion being movably arranged on the body for transporting the cylinder head (30); the first driving device being drivingly connected to the conveying portion for driving the conveying portion to move relative to the body; A lifting mechanism (22) is connected to the main body, and at least a portion of the lifting mechanism (22) is arranged to be liftable so as to drive the conveying part and the cylinder cover (30) to be lifted or lowered.

4. The cylinder head thickness detection device according to claim 1, characterized in that: The first detection structure (511) and / or the second detection structure (512) is a displacement sensor.

5. The cylinder head thickness detection device according to claim 1, characterized in that: The cylinder head thickness detection device also includes: A second driving device (60), the second driving device (60) is drivingly connected to the first detection structure (511) to drive the first detection structure (511) to move toward or away from the second detection structure (512); and / or the second driving device (60) is drivingly connected to the second detection structure (512) to drive the second detection structure (512) to move toward or away from the first detection structure (511).

6. The cylinder head thickness detection device according to claim 1, characterized in that: The cylinder head thickness detection device comprises: A blocking cylinder (70) comprises a movably arranged blocking portion; A control module electrically connected to the blocking cylinder (70); Wherein, in the initial state, the blocking portion is in an extended state to block the cylinder cover (30); after the control module receives a thickness detection request signal sent by the cylinder cover (30), the control module controls the blocking portion to move from the extended state to the retracted state to avoid the cylinder cover (30).

7. The cylinder head thickness detection device according to claim 3, characterized in that: The cylinder head thickness detection device also includes: A detection device (80) for detecting whether the cylinder cover (30) moves within a preset range; a control module, electrically connected to the detection device (80), the first drive device and the lifting mechanism (22); Wherein, after the detection device (80) detects that the conveying part drives the cylinder cover (30) to move within a preset range and waits for a preset time period, the control module controls the first driving device to stop running and controls the lifting mechanism (22) to drive the cylinder cover (30) to descend to a preset height until the positioning assembly (40) and the cylinder cover (30) are limitedly matched.

8. The cylinder head thickness detection device according to claim 5, characterized in that: The thickness detection device (50) further comprises: A mounting frame (52), wherein all of the first detection structures (511) are arranged on the mounting frame (52); The mounting frame (52) has a through hole, and the detection end of the first detection structure (511) is telescopically arranged in the through hole; the second driving device (60) is drivingly connected to the mounting frame (52) so as to drive the entire first detection structure (511) to perform lifting movement through the mounting frame (52).

9. The cylinder head thickness detection device according to claim 1, characterized in that: There are two positioning structures, one of which is a cylindrical pin shaft (41) and the other is a polygonal pin shaft (42).

10. A cylinder head thickness detection method, characterized in that: The cylinder head thickness detection device according to any one of claims 1 to 9, wherein the cylinder head thickness detection method comprises: After the control module of the cylinder head thickness detection device receives the thickness detection demand signal, the conveying device is controlled to start so as to transport the cylinder head through the conveying device; after the cylinder head moves to a preset range and waits for a preset time period, the conveying device is controlled to stop conveying and drive the cylinder head to descend until the positioning assembly and the cylinder head limit are matched; thereafter, the size of the thickness detection space of the thickness detection device is adjusted so that the cylinder head can be installed in the thickness detection space, and the thickness of the cylinder head is detected by the detection assembly.

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