Device and method for detecting reticulate pattern of cylinder hole of cylinder block

Abstract

The invention discloses a device and a method for detecting the reticulate pattern of a cylinder hole of a cylinder block. The device comprises a support frame, a sliding block, a sliding rod and a portable roughness instrument, the supporting frame is arranged on the top face of the air cylinder body and erected on the cylinder hole, the supporting frame comprises a transverse adjusting hole, and the transverse adjusting hole penetrates through the top face and the bottom face of the supporting frame; the sliding block is arranged in the transverse adjusting hole of the supporting frame, the sliding block can horizontally move in the length direction of the transverse adjusting hole, the sliding block comprises a vertical adjusting hole, and the vertical adjusting hole penetrates through the top face and the bottom face of the sliding block; the sliding rod is arranged in the vertical adjusting hole of the sliding block, the lower end of the sliding rod extends into the cylinder hole, and the sliding rod can move up and down along the vertical adjusting hole; the portable roughness meter is arranged on the lower portion of the sliding rod and located in the cylinder hole. Wherein the portable roughness meter can move in the cylinder hole along the axial direction or the radial direction of the cylinder hole along with the sliding rod. Therefore, on the premise that the position of the air cylinder body is not changed, various kinds of detection of the cylinder hole reticulate pattern can be achieved, monitoring data are accurate, and operation is convenient.

Description

Technical Field

[0001] The present invention relates to the field of engine design and manufacturing, and in particular to a device and method for detecting the texture of a cylinder block bore. Background Art

[0002] The cylinder block is a key component of an engine. The piston reciprocates within its cylinder bore, so the structure of the inner surface of the cylinder bore directly affects the engine's oil consumption and life. Currently, a textured surface is applied to the cylinder bore to improve the lubrication performance of the piston-ring moving pair. Therefore, inspecting the quality of the cylinder bore texture is particularly important.

[0003] The previous method for inspecting cylinder bore texture was to lay the cylinder block flat, aligning the bore axis with a platform, and then insert a portable roughness tester into the bore for testing. Because each bore needed to be sampled from different sections and directions, and the cylinder block was bulky and difficult to flip, inspection efficiency was low and the workload was high for inspectors.

[0004] In view of this, a device is further provided to solve the above-mentioned problems existing in the prior art.

[0005] The information disclosed in this background technology section is only intended to enhance understanding of the overall background of the invention and should not be regarded as an admission or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the Invention

[0006] The object of the present invention is to provide a detection device for cylinder bore reticulation of a cylinder block, which can realize various detections of cylinder bore reticulation without changing the position of the cylinder block, and the monitoring data is accurate and easy to operate.

[0007] Another object of the present invention is to provide a method for detecting the reticulation of a cylinder block bore.

[0008] To achieve the above-mentioned objectives, the present invention provides a device for detecting the reticulation of a cylinder block cylinder bore, comprising a support frame, a slider, a slide rod and a portable roughness meter; the support frame is arranged on the top surface of the cylinder block and is mounted on the cylinder bore, the support frame includes a transverse adjustment hole, and the transverse adjustment hole passes through the top and bottom surfaces of the support frame; the slider is arranged in the transverse adjustment hole of the support frame, and the slider can move horizontally along the length direction of the transverse adjustment hole, the slider includes a vertical adjustment hole, and the vertical adjustment hole passes through the top and bottom surfaces of the slider; the slide rod is arranged in the vertical adjustment hole of the slider, and the lower end of the slide rod extends into the interior of the cylinder bore, and the slide rod can move up and down along the vertical adjustment hole; the portable roughness meter is arranged at the lower part of the slide rod and is located inside the cylinder bore; wherein the portable roughness meter can move along the axial or radial direction of the cylinder bore in the cylinder bore with the slide rod.

[0009] In a preferred embodiment, the side surface of the slider and the support frame that is perpendicular to the length direction of the transverse adjustment hole is T-shaped, and the center line of the T-shaped structure coincides with the center line of the vertical adjustment hole in this direction. The slider also includes a vertical locking hole, a transverse locking hole and a slide; the vertical locking hole is arranged on the side surface parallel to the length direction of the transverse adjustment hole of the support frame, the vertical locking hole is perpendicular to and connected to the vertical adjustment hole, and the vertical locking hole is used to control the sliding or stopping of the slide rod in the vertical adjustment hole by tightening the bolt; the transverse locking hole is arranged below the vertical locking hole, the transverse locking hole is perpendicular to but not connected to the vertical adjustment hole; the slide is formed by the bottom edges on both sides of the upper part of the T-shaped structure.

[0010] In a preferred embodiment, the support frame is a rectangular parallelepiped structure, the transverse adjustment hole is a rectangular cylindrical hole, and is a stepped hole that is larger at the top and smaller at the bottom. The support frame also includes a slide rail and a transverse adjustment groove; the slide rails are arranged on both sides of the middle position of the stepped hole, and the slider slides on the slide rail relying on the slide platform; the transverse adjustment groove is arranged on the side of the support frame in the length direction, and the transverse adjustment groove is connected with the transverse adjustment hole. The slider passes through the transverse adjustment groove through a fastening bolt and is screwed into the transverse locking hole, and the sliding or stopping of the slider in the transverse adjustment hole is controlled by the tightness of the fastening bolt.

[0011] In a preferred embodiment, the cylinder block bore texture detection device also includes a sleeve and a stabilizing rod; the sleeve is arranged vertically on the sliding rod and is located above the portable roughness meter; the upper end of the stabilizing rod is connected to the sleeve by a fastening bolt, and the lower end is connected to the body of the portable roughness meter by a fastening bolt.

[0012] In a preferred embodiment, the length of the support bracket is greater than the diameter of the cylinder hole.

[0013] In a preferred embodiment, the length of the sliding rod is not less than 1.5 times the depth of the cylinder hole.

[0014] In a preferred embodiment, the lengths of the transverse adjustment hole and the transverse adjustment groove are equivalent to the diameter of the cylinder hole.

[0015] To achieve the above-mentioned another purpose, the present invention also provides a method for detecting the reticulation of a cylinder block cylinder bore, which is detected by a detection device as described above, and the detection method includes: first, placing the cylinder block horizontally so that the cylinder bore is in a vertical bottom surface state; screwing the slider into the horizontal locking hole through the horizontal locking groove of the support frame through the fastening bolt to fix the slider in the horizontal adjustment hole of the support frame; inserting the slide bar into the vertical adjustment hole of the slider, and screwing the slide bar into the vertical locking hole through the fastening bolt; installing a portable roughness meter to the lower part of the slide bar, and fixing the portable roughness meter and the slide bar together with the fastening bolt through the sleeve and the stabilizing rod; extending the part of the assembled detection device equipped with the portable roughness meter into the cylinder bore, and assuming that the two ends of the bottom surface of the support frame are on the top surface of the cylinder bore; and adjusting the position of the slide bar in the vertical adjustment hole by adjusting the tightness of the fastening bolt located at the vertical locking hole to adjust the position of the portable roughness meter in the cylinder barrel to detect reticulation conditions of different heights in the cylinder barrel.

[0016] In a preferred embodiment, the method for detecting the cylinder block bore reticulation further includes: when it is necessary to detect the cylinder bore reticulation at close range, by adjusting the tightness of the fastening bolts located at the transverse locking hole, adjusting the position of the slider and the slide rod in the transverse adjustment hole, so that the portable roughness meter is close to the inner wall of the cylinder bore for close-range reticulation detection; and after the detection is completed, by adjusting the tightness of the fastening bolts located at the transverse locking hole, adjusting the position of the slider and the slide rod in the transverse adjustment hole, so that the portable roughness meter is close to the inner wall of the cylinder bore, so as to avoid the inner wall of the cylinder bore from damaging the measuring needle of the portable roughness meter when the detection device is moved out of the cylinder bore.

[0017] In a preferred embodiment, the method for detecting the reticulation of the cylinder block cylinder hole also includes: when it is necessary to detect the reticulation at different radial angles in the cylinder hole, the operator first manually moves the installation angle of the support frame on the top surface of the cylinder hole, and then repeats the aforementioned detection steps of the upper and lower positions of the cylinder hole, the distance from the hole wall, and different direction angles.

[0018] Compared with the prior art, the device and method for detecting the reticulation of a cylinder block bore of the present invention have the following beneficial effects: this solution involves a support frame that can be arranged at the cylinder bore mouth of the cylinder block, and the support frame is provided with a transverse adjustment hole and a slide rail that allow the slider to move horizontally, and the slider is also provided with a vertical adjustment hole for the slide rod to pass through and move up and down. By adjusting the tightness of the fastening bolts, the axial or radial movement of the slider and the slide rod in the cylinder bore can be adjusted; at the same time, a portable roughness meter is fixed to the lower part of the slide rod, and the portable roughness meter and the slide rod are more firmly connected by a sleeve, a stabilizing rod and a bolt; in this way, the portable roughness meter can move up and down or horizontally in the cylinder bore with the slide rod and the slider to meet the detection of reticulations of different heights, reticulations in different directions and reticulations of different distances in the cylinder bore. In addition, when completing various cylinder bore reticulation inspections, the cylinder block only needs to be placed horizontally, keeping the cylinder bore perpendicular to the bottom surface. There is no need to change the specific position and posture of the cylinder block multiple times. This cleverly meets the inspection needs of cylinder bores in different directions and positions. There is no need to flip the cylinder block, which reduces the inspector's labor intensity. At the same time, it improves the inspection efficiency of cylinder bore reticulations, providing a strong guarantee for product quality process control. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is a schematic diagram of the three-dimensional structure of a detection device according to one embodiment of the present invention;

[0020] Figure 2 is a three-dimensional working schematic diagram of a detection device according to one embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of the three-dimensional structure of a slider according to one embodiment of the present invention;

[0022] Figure 4 3D is a schematic diagram of the three-dimensional structure of a support frame according to one embodiment of the present invention.

[0023] Description of main reference numerals:

[0024] 1-slide rod, 2-slider, 201-vertical adjustment hole, 202-vertical locking hole, 203-lateral locking hole, 204-slide table, 3-support frame, 301-lateral adjustment hole, 3011-slide rail, 302-lateral adjustment slot, 4-fastening bolt, 5-sleeve, 6-stabilizing rod, 7-portable roughness tester, 8-cylinder block, 801-cylinder hole. DETAILED DESCRIPTION

[0025] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0026] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations such as "include" or "comprising", etc., will be understood to include the stated elements or components but not to exclude other elements or other components.

[0027] like Figures 1 to 2 As shown, a cylinder block cylinder bore texture detection device according to a preferred embodiment of the present invention includes a support frame 3, a slider 2, a slide rod 1 and a portable roughness meter 7; the support frame 3 is arranged on the top surface of the cylinder block 8 and is mounted on the cylinder bore 801, the support frame 3 includes a transverse adjustment hole 301, and the transverse adjustment hole 301 passes through the top and bottom surfaces of the support frame 3; the slider 2 is arranged in the transverse adjustment hole 301 of the support frame 3, and the slider 2 can move horizontally along the length direction of the transverse adjustment hole 301, the slider 2 includes a vertical adjustment hole 201, and the vertical adjustment hole 201 passes through the top and bottom surfaces of the slider 2; the slide rod 1 is arranged in the vertical adjustment hole 201 of the slider 2, and the lower end of the slide rod 1 extends into the cylinder bore 801, and the slide rod 1 can move up and down along the vertical adjustment hole 201; the portable roughness meter 7 is arranged at the lower part of the slide rod 1 and is located inside the cylinder bore 801; wherein the portable roughness meter 7 can move along the axial or radial direction of the cylinder bore 801 in the cylinder bore 801 with the slide rod 1.

[0028] like Figures 3 to 4 As shown, in some embodiments, the sliding rod 1 of this embodiment is depicted as a long square rod, and therefore, the vertical adjustment hole 201 is also designed as a square hole, but the present invention is not limited thereto, and the axial cross-section of the sliding rod 1 has also been selected to be circular, elliptical or other polygonal to meet the criterion of being able to achieve up and down position adjustment.

[0029] See also Figure 3 and Figure 4 In some embodiments, the side surface perpendicular to the length direction of the horizontal adjustment hole 301 of the slider 2 and the support frame 3 is a T-shaped structure, and the center line of the T-shaped structure coincides with the center line of the vertical adjustment hole 201 in this direction (it may not coincide in special cases, but it is preferred to coincide), and the slider 2 also includes a vertical locking hole 202, a horizontal locking hole 203 and a slide 204; the vertical locking hole 202 is arranged on the side surface parallel to the length direction of the horizontal adjustment hole 301 of the support frame 3, the vertical locking hole 202 is perpendicular to and connected with the vertical adjustment hole 201, and the vertical locking hole 202 is used to control the sliding or stopping of the slide bar 1 in the vertical adjustment hole 201 by tightening the bolt 4; the horizontal locking hole 203 is arranged below the vertical locking hole 202, and the horizontal locking hole 203 is perpendicular to but not connected with the vertical adjustment hole 201; the slide 204 is formed by the bottom edges on both sides of the upper part of the T-shaped structure.

[0030] In some embodiments, the support frame 3 is a rectangular parallelepiped structure, the transverse adjustment hole 301 is a rectangular cylindrical hole, and is a stepped hole that is larger at the top and smaller at the bottom. The support frame 3 also includes a slide rail 3011 and a transverse adjustment groove 302; the slide rail 3011 is arranged on both sides of the middle position of the stepped hole, and the slider 2 slides on the slide rail 3011 relying on the slide 204; the transverse adjustment groove 302 is arranged on the side of the support frame 3 in the length direction, and the transverse adjustment groove 302 is connected to the transverse adjustment hole 301. The slider 2 passes through the transverse adjustment groove 302 through the fastening bolt 4 and is screwed into the transverse locking hole 203, and the sliding or stopping of the slider 2 in the transverse adjustment hole 301 is controlled by the tightness of the fastening bolt.

[0031] In some embodiments, the setting of the slide rail 3011 and the slide table 204 is mainly that the slide rail 3011 in the horizontal adjustment hole 301 of the support frame 3 bears the weight of the slide rod 1, the slider 2 and the portable roughness meter 7, which can make the detection device as a whole more stable.

[0032] In some embodiments, the cylinder block bore texture detection device also includes a sleeve 5 and a stabilizing rod 6; the sleeve 5 is arranged on the slide rod 1 vertically and is located above the portable roughness meter 7; the upper end of the stabilizing rod 6 is connected to the sleeve 5 through a fastening bolt 4, and the lower end is connected to the body of the portable roughness meter 7 through the fastening bolt 4.

[0033] In some embodiments, the length dimension of the support frame 3 is greater than the diameter of the cylinder hole 801. This design can ensure that the support frame 3 can be stably installed at the mouth of the cylinder hole 801, and can also leave a certain amount of room to prevent the support frame 3 from falling into the cylinder when there are sudden unstable factors.

[0034] In some embodiments, the length of the sliding rod 1 is not less than 1.5 times the depth of the cylinder hole 801 , which can meet the detection requirements of all the reticulate patterns in the cylinder hole 801 .

[0035] In some embodiments, the length of the transverse adjustment hole 301 and the transverse adjustment groove 302 is equivalent to the diameter of the cylinder hole 801, so that the measuring needle can reach the hole wall to the maximum extent and be close to the hole wall to meet the monitoring requirements of the mesh.

[0036] To achieve the above-mentioned another object, the present invention also provides a method for detecting the reticulation of the cylinder bore of a cylinder block, which is detected by the detection device as described above. The detection method comprises: firstly, placing the cylinder block 8 horizontally so that the cylinder bore 801 is in a vertical bottom surface state; screwing the slider 2 into the horizontal locking hole 203 through the fastening bolt 4 through the horizontal locking groove of the support frame 3, and fixing the slider 2 in the horizontal adjustment hole 301 of the support frame 3; inserting the slide bar 1 into the vertical adjustment hole 201 of the slider 2, and screwing the fastening bolt 4 into the vertical locking hole 202 to fix the slide bar 1 in the vertical locking hole 20 2; install the portable roughness meter 7 to the lower part of the slide bar 1, and fix the portable roughness meter 7 and the slide bar 1 together with the fastening bolt 4 through the sleeve 5 and the stabilizing rod 6; extend the part of the assembled detection device equipped with the portable roughness meter 7 into the cylinder hole 801, and use the two ends of the bottom surface of the support frame 3 to assume that the top surface of the cylinder hole 801; and adjust the position of the portable roughness meter 7 in the cylinder by adjusting the tightness of the fastening bolt 4 located at the vertical locking hole 202 and adjusting the position of the slide bar 1 in the vertical adjustment hole 201 to detect the different heights of the reticulation in the cylinder.

[0037] In some embodiments, the method for detecting the reticulation of the cylinder block cylinder bore further includes: when it is necessary to detect the reticulation of the cylinder bore 801 at close range, by adjusting the tightness of the fastening bolt 4 located at the transverse locking hole 203, adjusting the position of the slider 2 and the slide rod 1 in the transverse adjustment hole 301, so that the portable roughness meter 7 is close to the inner wall of the cylinder bore 801 for close-range reticulation detection; and after the detection is completed, by adjusting the tightness of the fastening bolt 4 located at the transverse locking hole 203, adjusting the position of the slider 2 and the slide rod 1 in the transverse adjustment hole 301, so that the portable roughness meter 7 is close to the inner wall of the cylinder bore 801, so as to avoid the inner wall of the cylinder bore 801 from hitting the probe of the portable roughness meter 7 when the detection device is moved out of the cylinder bore 801.

[0038] In some embodiments, the method for detecting the reticulation of the cylinder block cylinder hole also includes: when it is necessary to detect the reticulation at different radial angles in the cylinder hole 801, the operator first manually moves the installation angle of the support frame 3 on the top surface of the cylinder hole 801, and then repeats the aforementioned detection steps of the upper and lower positions of the cylinder hole 801, the distance from the hole wall, and different direction angles.

[0039] In summary, the device and method for detecting the reticulation of a cylinder block bore of the present invention have the following advantages: this solution involves a support frame that can be arranged at the cylinder bore mouth of the cylinder block, and the support frame is provided with a transverse adjustment hole and a slide rail that allow the slider to move horizontally, and the slider is also provided with a vertical adjustment hole for the slide rod to pass through and move up and down. By adjusting the tightness of the fastening bolts, the slider and the slide rod can be adjusted to move axially or radially in the cylinder bore; at the same time, a portable roughness meter is fixed to the lower part of the slide rod, and the portable roughness meter and the slide rod are more firmly connected by a sleeve, a stabilizing rod and a bolt; in this way, the portable roughness meter can move up and down or horizontally in the cylinder bore with the slide rod and the slider to meet the detection of reticulations of different heights, reticulations in different directions and reticulations of different distances in the cylinder bore. In addition, when completing various cylinder bore reticulation inspections, the cylinder block only needs to be placed horizontally, keeping the cylinder bore perpendicular to the bottom surface. There is no need to change the specific position and posture of the cylinder block multiple times. This cleverly meets the inspection needs of cylinder bores in different directions and positions. There is no need to flip the cylinder block, which reduces the inspector's labor intensity. At the same time, it improves the inspection efficiency of cylinder bore reticulations, providing a strong guarantee for product quality process control.

[0040] The foregoing descriptions of specific exemplary embodiments of the present invention are for purposes of illustration and description. These descriptions are not intended to limit the invention to the precise forms disclosed, and it is apparent that many variations and modifications are possible in light of the foregoing teachings. The exemplary embodiments have been selected and described for the purpose of explaining the specific principles of the invention and their practical application, thereby enabling those skilled in the art to realize and utilize a variety of exemplary embodiments of the invention and various options and modifications. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A device for detecting the reticulation of a cylinder block, characterized in that: include: A support frame is provided on the top surface of the cylinder body and mounted on the cylinder hole, the support frame including a transverse adjustment hole, the transverse adjustment hole passing through the top surface and the bottom surface of the support frame; a slider disposed in the transverse adjustment hole of the support frame, the slider being capable of horizontally moving along the length direction of the transverse adjustment hole, the slider including a vertical adjustment hole passing through the top and bottom surfaces of the slider; a slide rod, which is disposed in the vertical adjustment hole of the slider, and the lower end of the slide rod extends into the interior of the cylinder hole, and the slide rod can move up and down along the vertical adjustment hole; and a portable roughness meter, which is arranged at the lower part of the slide rod and located inside the cylinder hole; The portable roughness meter can move along the axial direction or radial direction of the cylinder hole in the cylinder hole along with the sliding rod.

2. The cylinder block bore texture detection device according to claim 1, characterized in that: The side of the slider that is perpendicular to the length direction of the horizontal adjustment hole of the support frame is in a T-shaped structure, and the center line of the T-shaped structure coincides with the center line of the vertical adjustment hole in the same direction. The slider also includes: A vertical locking hole is provided on a side surface parallel to the length direction of the horizontal adjustment hole of the support frame, the vertical locking hole is perpendicular to and communicates with the vertical adjustment hole, and the vertical locking hole is used to control the sliding or stopping of the slide rod in the vertical adjustment hole by tightening the fastening bolt; a transverse locking hole, which is arranged below the vertical locking hole, the transverse locking hole being perpendicular to but not connected to the vertical adjustment hole; and The slide is formed by the bottom edges on both sides of the upper part of the T-shaped structure.

3. The cylinder block bore texture detection device according to claim 2, characterized in that: The support frame is a cuboid structure, the transverse adjustment hole is a rectangular cylindrical hole, and is a stepped hole with a larger top and a smaller bottom. The support frame also includes: Slide rails are provided on both sides of the middle position of the step hole, and the slider slides on the slide rails by relying on the slide platform; and A transverse adjustment groove is provided on the side surface in the length direction of the support frame. The transverse adjustment groove is connected to the transverse adjustment hole. The slider is passed through the transverse adjustment groove by the fastening bolt and then screwed into the transverse locking hole. The sliding or stopping of the slider in the transverse adjustment hole is controlled by the tightness of the fastening bolt.

4. The cylinder block bore texture detection device according to claim 1, characterized in that: Also includes: a sleeve, which is arranged on the slide rod perpendicular to the slide rod and is located above the portable roughness tester; as well as The upper end of the stabilizing rod is connected to the sleeve through a fastening bolt, and the lower end is connected to the body of the portable roughness meter through a fastening bolt.

5. The cylinder block bore texture detection device according to claim 1, characterized in that: The length dimension of the support frame is greater than the diameter of the cylinder hole.

6. The cylinder block bore texture detection device according to claim 1, characterized in that: The length of the sliding rod is not less than 1.5 times the depth of the cylinder hole.

7. The cylinder block bore texture detection device according to claim 3, characterized in that: The lengths of the lateral adjustment hole and the lateral adjustment groove are equivalent to the diameter of the cylinder hole.

8. A method for detecting the reticulation of a cylinder block bore, which is performed by using the detection device according to claims 1 to 7, characterized in that: The detection method comprises: First, place the cylinder block horizontally so that the cylinder bore is in a vertical bottom position; Pass the slider through the horizontal locking groove of the support frame and screw it into the horizontal locking hole through the fastening bolt to fix the slider in the horizontal adjustment hole of the support frame; Insert the slide rod into the vertical adjustment hole of the slider, and screw the fastening bolt into the vertical locking hole to fix the slide rod in the vertical locking hole of the slider; Install the portable roughness meter to the lower part of the slide bar, and secure the portable roughness meter and the slide bar together with a fastening bolt through a sleeve and a stabilizing rod; insert the portion of the assembled testing device equipped with the portable roughness meter into the cylinder hole, and place both ends of the bottom surface of the support frame on the top surface of the cylinder hole; and By adjusting the tightness of the fastening bolt at the vertical locking hole and adjusting the position of the slide rod in the vertical adjustment hole, the position of the portable roughness tester in the cylinder can be adjusted to detect the different heights of the reticulation in the cylinder.

9. The method for detecting cylinder block bore reticulation according to claim 7, wherein: Also includes: When it is necessary to inspect the cylinder bore reticulation at close range, the tightness of the fastening bolts at the transverse locking holes is adjusted, and the positions of the slider and the slide rod in the transverse adjustment holes are adjusted so that the portable roughness meter can be brought close to the inner wall of the cylinder bore for close-range reticulation inspection; and After the test is completed, adjust the tightness of the fastening bolts at the transverse locking hole and adjust the position of the slider and the slide rod in the transverse adjustment hole to make the portable roughness tester close to the inner wall of the cylinder hole to avoid the inner wall of the cylinder hole hitting the probe of the portable roughness tester when the testing device is moved out of the cylinder hole.

10. The method for detecting cylinder block bore reticulation according to claim 7, wherein: Also includes: When it is necessary to detect the reticulations at different radial angles in the cylinder hole, the operator first manually moves the mounting angle of the support frame on the top surface of the cylinder hole, and then repeats the steps of claim 7 and claim 8.

Images