Cylinder cover thickness detection device and detection method

Abstract

The invention discloses a cylinder cover thickness detection device and detection method, and the device comprises a workbench which is provided with a high-precision sensing device through a transverse movement mechanism. The device is used for detecting a cylinder cover with side extension, the height of the upper surface of the side extension is lower than that of the upper surface of the cylinder cover, the device further comprises a lifting mechanism, a high-precision sensing device is arranged on the lifting mechanism, and the lifting mechanism is installed at the moving end of the transverse moving mechanism; a supporting assembly used for containing a cylinder cover is arranged on the workbench, and the transverse moving mechanism and the lifting mechanism drive the high-precision sensing device to be located above the side extending part and above the upper surface of the cylinder cover. The device and the method are specially designed for meeting the requirements for high-precision, high-efficiency and full-automatic detection of key parameters such as the thickness size and the sealing surface flatness of precise parts such as automobile engine cylinder covers on a production line, and thickness detection of cylinder covers of different sizes can be achieved.

Description

Technical Field

[0001] This invention relates to the field of technology, and in particular to a cylinder head thickness detection device and detection method. Background Technology

[0002] After the cylinder head is produced, the height of its upper surface needs to be inspected. Currently, thickness inspection is often done manually, which increases the labor intensity of workers to some extent.

[0003] A search revealed that a Chinese patent with authorization announcement number CN215177639U and titled "A Fastener Coating Thickness Detection Device" discloses a method for detecting different positions of a workpiece by moving the detection head laterally. The shortcoming of this patent is that it requires manual detection to ensure that the workpiece is in the correct position. Summary of the Invention

[0004] To address the technical problems existing in the background art, the present invention proposes a cylinder head thickness detection device and detection method.

[0005] This invention proposes a cylinder head thickness detection device, including a worktable on which a high-precision sensing device is mounted via a lateral moving mechanism. The lateral moving mechanism is used to move the high-precision sensing device in the X direction of a horizontal plane. Unlike existing technologies, this device is used to detect cylinder heads with side extensions, where the height of the upper surface of the side extension is lower than the height of the upper surface of the cylinder head. It also includes a lifting mechanism, on which the high-precision sensing device is mounted. The lifting mechanism is installed at the moving end of the lateral moving mechanism.

[0006] The workbench is equipped with a support assembly for placing the cylinder head. The lateral movement mechanism and the lifting mechanism drive the high-precision sensing device to be positioned above the side extension and above the upper surface of the cylinder head.

[0007] This invention achieves accurate detection of whether the cylinder head is in place by detecting the position of the side extension and the height of the upper surface of the side extension, and can also detect the distance difference between the side extension and the upper surface of the cylinder head.

[0008] As a further optimization of the present invention, it also includes a longitudinal moving mechanism mounted on the worktable, wherein the lateral moving mechanism is mounted on the moving part of the longitudinal moving mechanism, and the longitudinal moving mechanism is used to drive the high-precision sensing device to move in the Y direction of the horizontal plane.

[0009] As a further optimization of the present invention, the support assembly includes a first support block and a second support block, the first support block having a first support surface, the second support block having a second support surface on the same horizontal plane as the first support surface, a support gap being formed between the first support surface and the second support surface, the first support surface and the second support surface being used to support the lower surface of the cylinder head, and the cylinder head having a portion opposite to the support gap.

[0010] As a further optimization of the present invention, the first support block and the second support block are parallel.

[0011] As a further optimization of the present invention, the thickness of the upper portion of the first support block and / or the upper portion of the second support block gradually increases from top to bottom.

[0012] As a further optimization of the present invention, it also includes a support plate mounted on the workbench, wherein both the first support block and the second support block are mounted on the support plate.

[0013] As a further optimization of the present invention, the lateral sliding mechanism is a linear slide module, and the high-precision sensing device is located on the outside of the vertical side of the slide of the linear slide module.

[0014] A method for detecting cylinder head thickness includes the following steps:

[0015] S1. Place the cylinder head on the workbench;

[0016] S2. Move the high-precision sensor to the top of the cylinder head, and then move the high-precision sensor to detect multiple points on the upper surface of the cylinder head. The height of the upper surface of the cylinder head is detected by the high-precision sensor to indirectly detect the thickness of the cylinder head. If the thickness of one point is abnormal, the cylinder head is defined as a defective product and the detection of subsequent detection points is stopped. If the thickness of multiple detection points meets the standard, the cylinder head is a qualified product.

[0017] S3. Remove the qualified or defective products from the workbench after inspection.

[0018] As a further optimization of the present invention, before performing step S2, the following step is also included: S10: Detecting whether the cylinder head is placed in place by moving the high-precision sensing device to the upper part of the side extension.

[0019] As a further optimization of the present invention, the cylinder head has side extensions on both opposite sides. The high-precision sensing device in S10 detects whether the cylinder head is in place by moving above the side extensions on both sides.

[0020] The cylinder head thickness detection device and method proposed in this invention have a simple structure. The lifting component facilitates the zeroing of the high-precision sensing device. By moving the high-precision sensing device relative to the cylinder head, the side extension detection is used to determine whether the cylinder head is in place. By moving the position of the high-precision sensing device, the height of multiple detection points on the upper surface of the cylinder head is detected, thereby indirectly detecting the thickness of the cylinder head and increasing the detection accuracy.

[0021] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the cylinder head structure from another angle according to the present invention;

[0024] In the figure: 1. Workbench; 2. High-precision sensing device; 3. Lateral movement mechanism; 4. Lifting mechanism; 5. Support assembly; 50. First support block; 51. Second support block; 6. Longitudinal movement mechanism; 7. Support plate; 8. Cylinder head; 80. Side extension. Detailed Implementation

[0025] Embodiments of the present invention are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0026] This invention proposes a cylinder head thickness detection device, including a worktable 1. A high-precision sensing device 2 is mounted on the worktable 1 via a transverse moving mechanism 3. The high-precision sensing device 2 can be an IL-300 laser rangefinder, which has a protective cover that opens when measuring distance and closes when not measuring distance. The transverse moving mechanism 3 is used to move the high-precision sensing device 2 in the X direction of the horizontal plane. The transverse moving sliding mechanism is a linear slide module, and the high-precision sensing device 2 is located on the outer side of the vertical side of the slide of the linear slide module. This device is used to detect a cylinder head 8 with a side extension 80, where the height of the upper surface of the side extension 80 is lower than the height of the upper surface of the cylinder head 8. The device also includes a lifting mechanism 4, on which the high-precision sensing device 2 is mounted. The lifting mechanism 4 is mounted on the moving end of the transverse moving mechanism 3. The lifting mechanism 4 can be a cylinder, electric cylinder, or other mechanism that can drive components to move precisely. In this embodiment, the lifting mechanism 4 is a cylinder.

[0027] The workbench 1 is equipped with a support assembly 5 for placing the cylinder head 8. The lateral movement mechanism 3 and the lifting mechanism 4 drive the high-precision sensor 2 to be positioned above the side extension 80 and above the upper surface of the cylinder head 8. The high-precision sensor 2 is calibrated by lifting the high-precision sensor 2 through the lifting mechanism 4, which also facilitates the detection of the distance difference between the side extension 80 and the upper surface of the cylinder head 8. When the high-precision sensor 2 moves above the side extension 80, the lifting mechanism 4 raises and lowers it so that the detection value of the high-precision sensor 2 is equal to the detection data when the high-precision sensor 2 moves above the cylinder head 8. The lifting height of the lifting mechanism 4 from above the cylinder head 8 to the detection position of the side extension 80 is the distance from the side extension 80 to the upper surface of the cylinder head 8.

[0028] To enable the detection of multiple points on the cylinder head, a longitudinal moving mechanism 6 is also included, which is mounted on the worktable 1. A transverse moving mechanism 3 is mounted on the moving part of the longitudinal moving mechanism 6. The longitudinal moving mechanism 6 is used to drive the high-precision sensing device 2 to move in the Y direction of the horizontal plane. The longitudinal moving mechanism 6 can be a linear slide module in the prior art. The transverse moving mechanism 3 is mounted on the slide of the longitudinal moving mechanism 6.

[0029] The support assembly 5 includes a first support block 50 and a second support block 51. Preferably, the first support block 50 and the second support block 51 are arranged in parallel to increase the stability of the cylinder head 8. The first support block 50 has a first support surface, and the second support block 51 has a second support surface on the same horizontal plane as the first support surface. A support gap is formed between the first support surface and the second support surface. The first support surface and the second support surface are used to support the lower surface of the cylinder head 8, and the cylinder head 8 has a portion opposite to the support gap.

[0030] In order to ensure the stability of the connection between the first support block 50 and the second support block 51 and the worktable 1, and to reduce the contact area between the support block and the cylinder head 8, the thickness of the upper part of the first support block 50 and the upper part of the second support block 51 gradually increases from top to bottom.

[0031] Preferably, it also includes a support plate 7 installed on the workbench 1, and the first support block 50 and the second support block 51 are both detachably installed on the support plate 7 by screws or bolts.

[0032] It should be noted that the workbench is equipped with high-precision sensors (not shown in the figure) for detecting the displacement of the lateral moving mechanism 3 and the longitudinal moving mechanism 6 to ensure high-precision detection.

[0033] A method for detecting cylinder head thickness includes the following steps:

[0034] S1. The cylinder head 8 is placed on the worktable 1 by a robotic arm;

[0035] S2. Move the high-precision sensor 2 above the cylinder head 8, and then move the high-precision sensor 2 to detect multiple points on the upper surface of the cylinder head 8. The high-precision sensor 2 detects the height of the upper surface of the cylinder head 8 to indirectly detect the thickness of the cylinder head 8. If the thickness of one point is abnormal, the cylinder head 8 is defined as a defective product and the detection of subsequent detection points is stopped. If the thickness of multiple detection points meets the standard, the cylinder head 8 is a qualified product.

[0036] Specifically, when the high-precision sensor 2 moves above the cylinder head 8 to detect one of the detection points, the detected data is transmitted to the storage panel. The internal system compares the data with the process requirements and automatically determines whether the cylinder head processing data meets the process requirements. If the processing dimensions are out of tolerance, the system will automatically alarm and stop the machine, thus stopping the detection of subsequent detection points and increasing detection efficiency.

[0037] S3. The qualified or defective products that have been inspected are removed from the workbench 1 by a robotic arm.

[0038] Furthermore, the flatness of the cylinder head can be detected by data from multiple testing points.

[0039] Before step S2, the following steps are also included: S10: Detect whether the cylinder head 8 is in place by moving the high-precision sensing device 2 above the side extension 80.

[0040] In order to achieve further high-precision detection of whether the cylinder head 8 is in place, the cylinder head 8 has side extensions 80 on both sides. The high-precision sensing device 2 in S10 detects whether the cylinder head 8 is in place by moving above the side extensions 80 on both sides.

[0041] The lifting component facilitates the zeroing of the high-precision sensor 2, and by moving the position of the high-precision sensor 2 relative to the cylinder head 8, the side extension 80 is detected to determine whether the cylinder head 8 is in place. By moving the position of the high-precision sensor 2, the height of multiple detection points on the upper surface of the cylinder head 8 is detected, and the thickness of the cylinder head 8 is indirectly detected, thereby increasing the detection accuracy.

[0042] Furthermore, the lifting component, the lateral moving mechanism 3, and the longitudinal moving mechanism 6 facilitate the detection of the distance difference between the upper surface of the side extension 80 and the upper surface of the cylinder head 8.

[0043] This device and method overcome the inherent drawbacks of traditional manual measurement, such as slow speed, easy scratching of workpieces, and poor data traceability. It is particularly suitable for parts with stringent surface quality requirements, such as automotive engine cylinder heads. It can achieve seamless integration with industrial robot production lines, enabling 100% online full inspection, and is a core piece of equipment in modern intelligent manufacturing and digital quality control systems. It can perform thickness inspection on cylinder heads of different sizes.

[0044] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0045] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0046] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0047] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature.

[0048] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A cylinder head thickness detection device, comprising a worktable (1) and a high-precision sensing device (2), wherein the high-precision sensing device (2) is mounted on the worktable (1) via a lateral moving mechanism (3), and the lateral moving mechanism (3) drives the high-precision sensing device (2) to move in the X direction; characterized in that, The device is used to detect a cylinder head (8) with a side extension (80) and the height of the upper surface of the side extension (80) is lower than the height of the upper surface of the cylinder head (8). It also includes a lifting mechanism (4), on which the high-precision sensing device (2) is mounted. The lifting mechanism (4) is installed at the moving end of the lateral moving mechanism (3). The workbench (1) is provided with a support assembly (5) for placing the cylinder head (8). The lateral movement mechanism (3) and the lifting mechanism (4) drive the high-precision sensing device (2) to be located above the side extension (80) and above the upper surface of the cylinder head (8).

2. The cylinder head thickness detection device according to claim 1, characterized in that, It also includes a longitudinal moving mechanism (6) installed on the worktable (1), and a transverse moving mechanism (3) installed on the moving part of the longitudinal moving mechanism (6). The longitudinal moving mechanism (6) is used to drive the high-precision sensing device (2) to move in the Y direction of the horizontal plane.

3. The cylinder head thickness detection device according to claim 1, characterized in that, The support assembly (5) includes a first support block (50) and a second support block (51). The first support block (50) has a first support surface, and the second support block (51) has a second support surface on the same horizontal plane as the first support surface. A support gap is formed between the first support surface and the second support surface. The first support surface and the second support surface are used to support the lower surface of the cylinder head (8), and the cylinder head (8) has a portion opposite to the support gap.

4. The cylinder head thickness detection device according to claim 3, characterized in that, The first support block (50) and the second support block (51) are parallel.

5. The cylinder head thickness detection device according to claim 3, characterized in that, The thickness of the upper portion of the first support block (50) and / or the upper portion of the second support block (51) gradually increases from top to bottom.

6. The cylinder head thickness detection device according to claim 3, characterized in that, It also includes a support plate (7) installed on the workbench (1), and the first support block (50) and the second support block (51) are both installed on the support plate (7).

7. The cylinder head thickness detection device according to claim 1, characterized in that, The lateral sliding mechanism is a linear slide module, and the high-precision sensing device (2) is located on the outside of the vertical side of the slide of the linear slide module.

8. A method for detecting cylinder head thickness, characterized in that, Includes the following steps: S1. Place the cylinder head (8) on the workbench (1); S2. Move the high-precision sensor (2) above the cylinder head (8), and then use the lifting mechanism to detect multiple points on the upper surface of the cylinder head (8). The high-precision sensor (2) detects the height of the upper surface of the cylinder head (8) to indirectly detect the thickness of the cylinder head (8). If the thickness of one point is abnormal, the cylinder head (8) is defined as scrap and the detection of subsequent detection points is stopped. If the thickness of multiple detection points meets the standard, the cylinder head (8) is a qualified product. S3. Remove the qualified or defective products from the workbench (1) after inspection.

9. The cylinder head thickness detection method according to claim 7, characterized in that, Before step S2, the following steps are also included: S10: Detect whether the cylinder head (8) is in place by moving the high-precision sensing device (2) above the side extension (80).

10. The cylinder head thickness detection method according to claim 9, characterized in that, The cylinder head (8) has side extensions (80) on both sides. The high-precision sensing device (2) in S10 detects whether the cylinder head (8) is in place by moving above the side extensions (80) on both sides.

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