CN118595747A - Angle adjustment method of cylinder sleeve rolling tool - Google Patents

Abstract

The invention discloses an angle adjusting method of a cylinder sleeve rolling tool, which belongs to the technical field of maintenance and manufacture of internal combustion engines and comprises the following steps: step S1: the rolling tool is mounted on an angle adjuster of a multi-degree-of-freedom adjusting device, the multi-degree-of-freedom adjusting device comprises a base provided with a clamp, a moving plate arranged on the base and provided with the angle adjuster, and a positioning device arranged on the moving plate and adapted to the angle adjuster, wherein the angle adjuster can be rotationally adjusted on the moving plate; step S2: fine-tuning the moving plate and clamping by using a clamp; step S3: fine tuning the angle adjuster and positioning by using a positioning device; step S4: and fixedly connecting the movable plate, the angle adjuster and the base, and finishing the angle adjustment. The invention can adjust the contact angle between the rolling tool and the cylinder sleeve to ensure uniform pressure distribution and high-quality surface treatment in the rolling process, is beneficial to improving the performance, the fuel efficiency and the durability of the engine and meets the high-precision requirements of the manufacturing and the maintenance of the modern internal combustion engine.

Description

Angle adjustment method of cylinder sleeve rolling tool

Technical Field

The invention belongs to the technical field of internal combustion engine maintenance and manufacturing, and in particular relates to an angle adjustment method for a cylinder sleeve rolling tool.

Background Art

In the manufacturing process of modern internal combustion engines, the processing quality of the support shoulder on the upper end of the cylinder liner has a crucial impact on the performance and life of the engine. As one of the main stress-bearing parts, it is the part that is most subjected to mechanical and thermal stresses during the operation of the engine. However, the support shoulder is also the weakest part in the cylinder liner structure design. Fatigue failure is prone to occur at the fillet of the support shoulder, which can lead to cracks or even fractures in the cylinder liner. In order to improve the fatigue strength of the cylinder liner, one of the common treatment methods is to perform linear rolling on the fillet of the support shoulder.

In order to achieve linear loading of rolling force, rolling tools usually adopt a design in which a roller is installed on one end of the cutter body spring or one end of the hydraulic cylinder. When the roller is subjected to radial rolling force, the roller can perform elastic movement under the action of the spring. However, this type of rolling tool has certain limitations in practical applications. The most common limitation is that these rolling tools need to be installed on CNC machine tools. Although CNC machine tools can provide high-precision processing, they often lack an effective angle fine-tuning mechanism, which means that during the rolling process, the contact angle between the rolling tool and the part to be processed of the cylinder liner cannot be accurately controlled, resulting in poor rolling effect. This limitation makes it difficult for the processing quality of the cylinder liner to meet the high-precision requirements of modern engine manufacturing. Therefore, there is a need for an angle adjustment method for cylinder liner rolling tools that can achieve precise control of the contact angle of the rolling tool during the rolling process and improve the processing quality of the cylinder liner.

Summary of the invention

The purpose of the present invention is to provide an angle adjustment method for a cylinder liner rolling tool, which can adjust the contact angle between the rolling tool and the cylinder liner to ensure uniform pressure distribution and high-quality surface treatment during the rolling process, which helps to improve the performance, fuel efficiency and durability of the engine and meet the high-precision requirements of modern internal combustion engine manufacturing and maintenance.

To achieve the above object, the technical solution adopted by the present invention is:

A method for adjusting the angle of a cylinder sleeve rolling tool comprises the following steps:

Step S1: installing the rolling tool on the angle adjuster of the multi-degree-of-freedom adjustment device, the multi-degree-of-freedom adjustment device comprising a base provided with a clamp, a moving plate provided on the base and provided with the angle adjuster, and a positioning device provided on the moving plate and adapted to the angle adjuster, wherein the angle adjuster can be rotated and adjusted on the moving plate;

Step S2: fine-tuning the movable plate: adjusting the movable plate so that the rolling tool mounted on the angle adjuster moves horizontally on the base until it is aligned with the fillet of the cylinder sleeve support shoulder to be rolled, and then clamping the fine-tuned movable plate with the clamp on the base;

Step S3: fine-tuning the angle adjuster: rotating the angle adjuster so that the rolling angle of the rolling tool meets the rolling requirement of 35°-45°, so that the roller of the rolling tool can be correctly pressed into the fillet of the cylinder sleeve support shoulder, and then positioning the fine-tuned angle adjuster through the positioning device on the moving plate;

Step S4: The movable plate and the angle adjuster are fixedly connected to the base, and the angle adjustment of the rolling tool is completed, and the cylinder sleeve rolling operation can be performed.

A further improvement of the technical solution of the present invention is that the clamp includes a clamping strip horizontally arranged on the lower side of the base and a plurality of clamping blocks evenly spaced and arranged on the upper side and left and right sides of the base, and each clamping block is threaded with an adjusting screw.

A further improvement of the technical solution of the present invention is that the angle adjuster is a disk which is rotatably arranged in a concave cavity opened in a movable plate through a rotating shaft and has an arc-shaped notch along the outer circumference. One end of the rotating shaft is connected to the center of the angle adjuster and the other end passes through the movable plate and has an external thread at its end. The angle adjuster is provided with a plurality of mounting holes adapted for rolling tools.

A further improvement of the technical solution of the present invention is that: connecting screws are correspondingly arranged on the upper and lower sides of the movable plate, and a guide groove corresponding to each connecting screw and the rotating shaft is opened on the base along its horizontal direction; the movable plate and the angle adjuster are respectively connected to the fastening nut through the connecting screws and the rotating shaft passing through the guide grooves.

A further improvement of the technical solution of the present invention is that the concave cavity of the movable plate is adapted to the recliner and a boss matching the arc-shaped notch on the recliner is arranged on its inner wall, and the size of the boss is smaller than the arc-shaped notch.

A further improvement of the technical solution of the present invention is that the positioning device includes a positioning screw that threads through the movable plate and abuts against one end of the arc-shaped notch of the angle adjuster in its concave cavity, and an arc-shaped pad that is detachably connected to the other end of the arc-shaped notch and abuts against the boss; a connecting plate that adapts to the arc-shaped pad is provided on the arc-shaped notch, and the arc-shaped pad is set on the connecting plate by bolts.

A further improvement of the technical solution of the present invention is that the inner side wall of the cavity located on one side of the boss extends along its horizontal or vertical tangent direction and intersects perpendicularly with the side wall of the boss, and the positioning screw is threaded through the side wall of the boss along the horizontal or vertical direction from the outer side of the movable plate and abuts against one end of the arc-shaped notch on the angle adjuster in the cavity.

A further improvement of the technical solution of the present invention is that in step S2, fine-tuning the movable plate includes the following steps:

Step S201: loosen the connecting screws of the moving plate and the fastening nuts on the rotating shaft of the angle adjuster respectively, and loosen the adjusting screws on each clamping block at the same time to provide sufficient activity space for adjusting the moving plate;

Step S202: The movable plate drives the angle adjuster to perform horizontal fine adjustment in the guide slot on the corresponding base through the connecting screws and the rotating shafts. During the adjustment process, the lower side of the movable plate always abuts against the clamping strip.

Step S203: After the movable plate is fine-tuned to be aligned with the fillet of the cylinder liner support shoulder to be rolled, the adjusting screws on each clamping block are screwed and the movable plate is clamped in cooperation with the clamping strip.

A further improvement of the technical solution of the present invention is that in step S3, fine-tuning the angle adjuster includes the following steps:

Step S301: loosen the positioning screw on the moving plate, and select an arc-shaped pad whose arc size is adapted to the rotation angle required for rolling;

Step S302: The arc-shaped pad is mounted on the connecting plate of the recliner by means of bolts, and the arc-shaped notch of the recliner is abutted against the side wall of the boss of the moving plate, thereby accurately adjusting the rotation of the recliner;

Step S303: Screw the positioning screw so that it abuts against the other end of the arc-shaped notch of the recliner in the concave cavity of the movable plate, and cooperates with the arc-shaped pad to position the recliner, so that the rolling tool installed on the recliner is correctly pressed into the cylinder sleeve support shoulder fillet.

The further improvement of the technical solution of the present invention is:

In step S4, the connecting screw of the moving plate and the fastening nut on the rotating shaft of the recliner are tightened respectively to fix the moving plate and the recliner on the base.

Due to the adoption of the above technical solution, the technical progress achieved by the present invention is:

The angle adjustment method of the cylinder liner rolling tool of the present invention can adjust the contact angle between the rolling tool and the cylinder liner to ensure uniform pressure distribution and high-quality surface treatment during the rolling process, which helps to improve the performance, fuel efficiency and durability of the engine and meet the high-precision requirements of modern internal combustion engine manufacturing and maintenance.

The present invention adopts a multi-degree-of-freedom adjustment device to adjust the rolling tool, including a base with a clamp that cooperates with each other, a movable plate arranged on the base and equipped with an angle adjuster, and a positioning device arranged on the movable plate to adapt to the angle adjuster, wherein the angle adjuster can be rotated and adjusted on the movable plate, so that the movable plate can drive the angle adjuster to move horizontally on the base, thereby driving the rolling tool on the angle adjuster to move horizontally. At the same time, the angle adjuster is rotated and adjusted to drive the rolling tool to adjust the angle and position it through the positioning component on the movable plate, and then the adjusted movable plate and the angle adjuster are fixedly connected with the base, so as to facilitate the subsequent cylinder sleeve rolling operation, so as to ensure uniform pressure distribution and high-quality surface treatment during the rolling process.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective schematic diagram of a multi-degree-of-freedom adjustment device in the present invention;

FIG2 is a front view of the multi-degree-of-freedom adjustment device of the present invention;

FIG3 is a rear view of the multi-degree-of-freedom adjustment device of the present invention;

FIG4 is a schematic structural diagram of a moving plate of a multi-degree-of-freedom adjustment device in the present invention;

5 is a schematic structural diagram of the angle adjuster of the multi-degree-of-freedom adjustment device of the present invention;

Among them, 1. base, 1-1. guide groove, 1-2. clamping strip, 1-3. clamping block, 1-4. connecting screw, 1-5. rotating shaft, 1-6. adjusting screw, 2. moving plate, 2-1. concave cavity, 2-2. boss, 3. angle adjuster, 3-1. arc notch, 3-2. connecting plate, 3-3. mounting hole, 4. positioning screw, 5. arc pad, 5-1. bolt.

DETAILED DESCRIPTION

The present invention is further described in detail below in conjunction with embodiments:

The present invention provides a method for adjusting the angle of a cylinder sleeve rolling tool, comprising the following steps:

Step S1: installing the rolling tool on the angle adjuster 3 of the multi-degree-of-freedom adjustment device, as shown in Figures 1 to 5, the multi-degree-of-freedom adjustment device includes a base 1, a movable plate 2, an angle adjuster 3 and a positioning device, the base 1 is provided with a clamp, the movable plate 2 is arranged on the base 1 and is installed with the angle adjuster 3, the angle adjuster 3 can be rotated and adjusted on the movable plate 2, and the positioning device is arranged on the movable plate 2 and adapted to the angle adjuster 3;

Specifically, the clamp includes a clamping strip 1-2 horizontally arranged on the lower side of the base 1 and a plurality of clamping blocks 1-3 evenly spaced and arranged on the upper side of the base 1 and correspondingly arranged on the left and right sides thereof. Preferably, at least three clamping blocks 1-3 are arranged on the upper side of the base 1, and at least two clamping blocks 1-3 are arranged on the left and right sides of the base 1. Each clamping block 1-3 is threaded with an adjusting screw 1-6, and the adjusting screw 1-6 can be screwed on the clamping block 1-3 for adjustment;

The recliner 3 is a disk with an arc-shaped notch 3-1 along its outer circumference, and a plurality of mounting holes 3-3 adapted to the rolling tool are arranged on the disk surface, that is, the rolling tool can be connected to the recliner 3 in a detachable manner through these mounting holes 3-3. Preferably, at least 4 mounting holes 3-3 are arranged and evenly distributed on the disk surface of the recliner 3. The recliner 3 is rotatably arranged in the concave cavity 2-1 opened on the moving plate 2 through the rotating shaft 1-5. Specifically, one end of the rotating shaft 1-5 is connected to the center of the recliner 3 and the other end passes through the moving plate 2, and an external thread is arranged on the end of the rotating shaft 1-5 passing through the moving plate 2;

The movable plate 2 is provided with a plurality of connecting screws 1-4, each of which is correspondingly arranged on the upper and lower sides of the movable plate 2. Preferably, at least four connecting screws 1-4 are arranged and evenly distributed at the four corners of the movable plate 2.

A plurality of guide slots 1-1 are provided on the base 1. Each guide slot 1-1 is provided on the base 1 in the horizontal direction and corresponds to each connecting screw 1-4 and the rotating shaft 1-5 respectively. Preferably, at least 5 guide slots 1-1 are provided, of which 4 guide slots 1-1 correspond to 4 connecting screws 1-4 and are evenly distributed at the four corners of the base 1. The remaining 1 guide slot 1-1 corresponds to the rotating shaft 1-5 and is located at the center of the base 1. The movable plate 2 is connected to the fastening nut through the connecting screw 1-4 that passes through the guide slot 1-1, and the angle adjuster 3 is connected to the fastening nut through the rotating shaft 1-5 that passes through the guide slot 1-1. After loosening each fastening nut, the movable plate 2 can move horizontally in the corresponding guide slot 1-1 through each connecting screw 1-4, and the angle adjuster 3 can rotate in the corresponding guide slot 1-1 through the rotating shaft 1-5, and at the same time, it also moves horizontally in the guide slot 1-1 following the movable plate 2.

The movable plate 2 is a square plate, and the concave cavity 2-1 is opened at the center of the movable plate 2 and is adapted to the angle adjuster 3, that is, the movable plate 2 is nearly circular, and a boss 2-2 matching the arc notch 3-1 on the angle adjuster 3 is provided on the inner side wall of the movable plate 2, that is, the boss 2-2 is provided with an arc surface that fits the arc notch 3-1, and the arc size of the arc surface is smaller than the arc size of the arc notch 3-1. Preferably, the boss 2-2 is located in the middle of the arc notch 3-1, dividing the arc notch 3-1 into two parts, one part is used to adjust the angle, and the other part is used for positioning;

The positioning device includes an arc-shaped pad 5 for adjusting the rotation angle of the angle adjuster 3 and a positioning screw 4 for positioning the angle adjuster 3 after rotation. The positioning screw 4 cooperates with the arc-shaped pad 5 to achieve a good positioning effect.

The positioning screw 4 passes through the movable plate 2 through the outer thread of the movable plate 2, that is, a threaded hole adapted to the positioning screw 4 is opened on the movable plate 2, and the positioning screw 4 can be screwed and adjusted in the threaded hole, so as to abut against one end of the arc-shaped notch 3-1 of the angle adjuster 3 in the concave cavity 2-1 of the movable plate 2 to position the angle adjuster 3; the arc-shaped pad 5 is detachably arranged at the other end of the arc-shaped notch 3-1 and abuts against the side wall of one side of the boss 2-2. The arc-shaped pad 5 is adapted to the shape of the arc-shaped notch 3-1 and is an arc-shaped block structure. A plurality of arc-shaped pads 5 of different arc sizes can be arranged. By replacing the arc-shaped pads 5 of different arc sizes The arc-shaped pad 5 is used to fine-tune the rotary angle adjuster 3; a connecting plate 3-2 adapted to the arc-shaped pad 5 is provided on the arc-shaped notch 3-1, and the arc-shaped pad 5 is arranged on the connecting plate 3-2 by a bolt 5-1 and abuts against the boss 2-2. Specifically, the connecting plate 3-2 can be arranged at the end of the arc-shaped notch 3-1 or on the arc surface of the arc-shaped notch 3-1. One end of the arc-shaped pad 5 is connected to the connecting plate 3-2 by a bolt 5-1, and the other end abuts against the boss 2-2. The connecting plate 3-2 is arranged on the arc surface of the arc-shaped notch 3-1, which saves more materials for the arc-shaped pad 5 than being arranged at its end, and saves economic costs;

Furthermore, for a better positioning effect, the inner side wall of the concave cavity 2-1 located on one side of the boss 2-2 extends in the horizontal or vertical tangent direction and intersects perpendicularly with the side wall of the boss 2-2, that is, the side wall of the boss 2-2 is in a vertical or horizontal direction, and the positioning screw 4 is threaded from the outer side of the movable plate 2 through the side wall of the boss 2-2 in the horizontal or vertical direction and abuts against one end of the arc notch 3-1 on the angle adjuster 3 in the concave cavity 2-1, that is, the positioning screw 4 is perpendicular to the side wall of the boss 2-2;

Step S2: fine-tuning the movable plate 2: adjusting the movable plate 2 so that the rolling tool mounted on the angle adjuster 3 moves horizontally on the base 1 until it is aligned with the fillet of the cylinder sleeve support shoulder to be rolled, and then clamping the fine-tuned movable plate 2 by the clamp on the base 1, specifically comprising the following steps:

Step S201: respectively loosen the connecting screws 1-4 of the moving plate 2 and the fastening nuts on the rotating shaft 1-5 of the angle adjuster 3, and at the same time loosen the adjusting screws 1-6 on each clamping block 1-3 to provide sufficient activity space for adjusting the moving plate 2;

Step S202: The movable plate 2 drives the angle adjuster 3 to perform horizontal fine adjustment in the corresponding guide slot 1-1 on the base 1 through the connecting screws 1-4 and the rotating shaft 1-5. During the adjustment process, the lower side of the movable plate 2 always abuts against the clamping strip 1-2.

Step S203: After the movable plate 2 is finely adjusted to be aligned with the fillet of the cylinder liner support shoulder to be rolled, the adjusting screws 1-6 on each clamping block 1-3 are screwed and the movable plate 2 is clamped in cooperation with the clamping strips 1-2;

Step S3: fine-tuning the angle adjuster 3: rotating the angle adjuster 3 so that the rolling angle of the rolling tool meets the rolling requirement of 35°-45°, so that the roller of the rolling tool can be correctly pressed into the fillet of the cylinder sleeve support shoulder, and then positioning the fine-tuned angle adjuster 3 by the positioning device on the movable plate 2, specifically including the following steps:

Step S301: loosen the positioning screw 4 on the moving plate 2, and select an arc-shaped pad 5 whose arc size is adapted to the rotation angle required for rolling;

Step S302: The arc-shaped pad 5 is mounted on the connecting plate 3-2 of the recliner 3 by means of the bolt 5-1, and one end of the arc-shaped notch 3-1 of the recliner 3 abuts against the side wall of the boss 2-2 of the moving plate 2, thereby precisely rotating and fine-tuning the recliner 3;

Step S303: Screw the positioning screw 4 so that it abuts against the other end of the arc-shaped notch 3-1 of the recliner 3 in the concave cavity 2-1 of the movable plate 2, and cooperates with the arc-shaped pad 5 to position the recliner 3, so that the rolling tool installed on the recliner 3 is correctly pressed into the fillet of the cylinder sleeve support shoulder;

Step S4: fix the movable plate 2 and the angle adjuster 3 to the base 1, and the angle adjustment of the rolling tool is completed, and the cylinder sleeve rolling operation can be performed. Specifically, tighten the connecting screws 1-4 of the movable plate 2 and the fastening nuts on the rotating shaft 1-5 of the angle adjuster 3 respectively to fix the movable plate 2 and the angle adjuster 3 on the base 1.

It is to be understood that the present invention is described by some embodiments, and it is known to those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the scope of protection of the present invention.

Claims (10)

1. A method for adjusting the angle of a cylinder liner rolling tool, characterized by comprising the following steps: Step S1: installing a rolling tool on a recliner (3) of a multi-degree-of-freedom adjustment device, the multi-degree-of-freedom adjustment device comprising a base (1) provided with a clamp, a movable plate (2) disposed on the base (1) and provided with the recliner (3), and a positioning device disposed on the movable plate (2) and adapted to fit the recliner (3), wherein the recliner (3) can be rotated and adjusted on the movable plate (2); Step S2: fine-tuning the movable plate (2): adjusting the movable plate (2) so that the rolling tool mounted on the angle adjuster (3) moves horizontally on the base (1) until it is aligned with the fillet of the cylinder sleeve support shoulder to be rolled, and then the fine-tuned movable plate (2) is clamped by a clamp on the base (1); Step S3: fine-tuning the angle adjuster (3): rotating the angle adjuster (3) so that the rolling angle of the rolling tool meets the rolling requirement of 35°-45°, so that the roller of the rolling tool can be correctly pressed into the rounded corner of the cylinder sleeve support shoulder, and then positioning the fine-tuned angle adjuster (3) through the positioning device on the movable plate (2); Step S4: The movable plate (2) and the angle adjuster (3) are fixedly connected to the base (1), and the angle adjustment of the rolling tool is completed, and the cylinder sleeve rolling operation can be carried out. 2. A method for adjusting the angle of a cylinder liner rolling tool according to claim 1, characterized in that: the clamp comprises a clamping strip (1-2) horizontally arranged on the lower side of a base (1) and a plurality of clamping blocks (1-3) evenly spaced and arranged on the upper side and left and right sides of the base (1), and each clamping block (1-3) is threadedly penetrated by an adjusting screw (1-6). 3. A method for adjusting the angle of a cylinder liner rolling tool according to claim 2, characterized in that: the angle adjuster (3) is a disk that is rotatably arranged in a concave cavity (2-1) opened on a movable plate (2) through a rotating shaft (1-5) and has an arc-shaped notch (3-1) along the outer circumference, one end of the rotating shaft (1-5) is connected to the center of the angle adjuster (3) and the other end passes through the movable plate (2) and is provided with an external thread at its end; the angle adjuster (3) is provided with a plurality of mounting holes (3-3) adapted to the rolling tool. 4. A method for adjusting the angle of a cylinder liner rolling tool according to claim 3, characterized in that: connecting screws (1-4) are correspondingly arranged on the upper and lower sides of the movable plate (2), and a guide slot (1-1) corresponding to each connecting screw (1-4) and the rotating shaft (1-5) is opened on the base (1) along its horizontal direction; the movable plate (2) and the angle adjuster (3) are respectively connected to the fastening nut through the connecting screw (1-4) and the rotating shaft (1-5) passing through the guide slot (1-1). 5. A method for adjusting the angle of a cylinder liner rolling tool according to claim 4, characterized in that: the concave cavity (2-1) of the movable plate is adapted to the angle adjuster (3) and a boss (2-2) matching the arc-shaped notch (3-1) on the angle adjuster (3) is provided on its inner wall, and the size of the boss (2-2) is smaller than the arc-shaped notch (3-1). 6. A method for adjusting the angle of a cylinder liner rolling tool according to claim 5, characterized in that: the positioning device comprises a positioning screw (4) threadedly penetrating the movable plate (2) and abutting against one end of the arc-shaped notch (3-1) of the angle adjuster (3) in its concave cavity (2-1), and an arc-shaped pad (5) detachably connected to the other end of the arc-shaped notch (3-1) and abutting against the boss (2-2); a connecting plate (3-2) adapted to the arc-shaped pad (5) is provided on the arc-shaped notch (3-1), and the arc-shaped pad (5) is set on the connecting plate (3-2) by bolts (5-1). 7. A method for adjusting the angle of a cylinder liner rolling tool according to claim 6, characterized in that: the inner wall of the cavity (2-1) located on one side of the boss (2-2) extends along its horizontal or vertical tangent direction and intersects vertically with the side wall of the boss (2-2), and the positioning screw (4) is threaded from the outer side of the movable plate (2) through the side wall of the boss (2-2) in the horizontal or vertical direction and abuts against one end of the arc-shaped notch (3-1) on the angle adjuster (3) in the cavity (2-1). 8. The method for adjusting the angle of a cylinder liner rolling tool according to claim 7, characterized in that: in step S2, fine-tuning the movable plate (2) comprises the following steps: Step S201: respectively loosen the connecting screws (1-4) of the movable plate (2) and the fastening nuts on the rotating shaft (1-5) of the angle adjuster (3), and at the same time loosen the adjusting screws (1-6) on each clamping block (1-3) to provide sufficient movement space for adjusting the movable plate (2); Step S202: The movable plate (2) drives the angle adjuster (3) to perform horizontal fine adjustment in the guide groove (1-1) on the corresponding base (1) through the connecting screws (1-4) and the rotating shaft (1-5). During the adjustment process, the lower side of the movable plate (2) always abuts against the clamping strip (1-2); Step S203: After the movable plate (2) is finely adjusted to align with the rounded corner of the cylinder liner support shoulder to be rolled, the adjusting screws (1-6) on each clamping block (1-3) are screwed and the movable plate (2) is clamped in cooperation with the clamping strip (1-2). 9. The method for adjusting the angle of a cylinder liner rolling tool according to claim 8, characterized in that: in step S3, fine-tuning the angle adjuster (3) comprises the following steps: Step S301: loosen the positioning screw (4) on the moving plate (2), and select an arc-shaped pad (5) whose arc size is compatible with the rotation angle required for rolling; Step S302: The arc-shaped pad (5) is mounted on the connecting plate (3-2) of the recliner (3) by means of a bolt (5-1), and one end of the arc-shaped pad (5) abuts against the side wall of the boss (2-2) of the movable plate (2) at the arc-shaped notch (3-1) of the recliner (3), thereby accurately fine-tuning the rotation of the recliner (3); Step S303: Screw the positioning screw (4) so that the other end of the positioning screw (4) abuts against the arc-shaped notch (3-1) of the recliner (3) in the concave cavity (2-1) of the movable plate (2), and cooperates with the arc-shaped pad (5) to position the recliner (3), so that the rolling tool installed on the recliner (3) is correctly pressed into the rounded corner of the cylinder sleeve support shoulder. 10. The method for adjusting the angle of a cylinder liner rolling tool according to claim 9, characterized in that: in step S4, the connecting screws (1-4) of the movable plate (2) and the fastening nuts on the rotating shaft (1-5) of the angle adjuster (3) are tightened respectively to fix the movable plate (2) and the angle adjuster (3) on the base (1).