Device for adjusting alignment tolerance of shell ring assembly

Abstract

The invention relates to a shell ring assembly alignment tolerance adjusting device which is mainly used for solving the problems that an existing hooping tool for adjusting the alignment tolerance cannot be suitable for shell rings of different sizes and shapes, and the local alignment tolerance is large easily. Or the hydraulic clamping mechanism cannot be well suitable for the shell ring and the end socket with the thin wall thickness, and deformation is prone to occurring. The device comprises a base, a moving structure, an adjusting structure and a measuring piece, the adjusting structure is installed on the moving structure, the moving end of the moving structure drives the adjusting structure to move in the direction perpendicular to the central axis face of a shell ring, the adjusting structure is made to be close to or away from the shell ring, and the measuring piece is used for measuring alignment tolerance data in real time. The adjusting structure is tightly attached to the shell rings and rotates to extrude the outer walls of the shell rings, so that the alignment tolerance of the two shell rings is adjusted section by section, and the assembly quality is effectively guaranteed.

Description

Technical Field

[0001] The invention relates to a butt adjustment device during butt welding of a cylinder segment assembly, in particular to a cylinder segment assembly butt adjustment device. Background Art

[0002] The cylinder is the main component of the tank container, usually a hollow cylindrical or square round structure. Its main function is to provide a closed space for containing the medium. Due to the limitation of the size of the manufacturing steel plate, some large container cylinders are assembled and spliced ​​with multiple cylinder sections to achieve the required cylinder size.

[0003] When two cylinder sections are assembled, the center points and sides of the two cylinder sections are required to be on the same horizontal plane or the misalignment is within the allowable range. The misalignment is the deviation size at the edges of the two welds of the butt weld during the welding process. Too large misalignment will cause welding defects, which may easily cause discontinuity of the cylinder structure formed after multiple cylinder sections are assembled, or cause uneven stress distribution of the cylinder, deformation or cracks, etc.

[0004] The device for adjusting the misalignment in the prior art is usually to make a hoop rounding tool with the same shape as the cylinder section and install it on the two cylinder sections to ensure that the misalignment of the cylinder section meets the requirements. However, its disadvantages are: corresponding hoop rounding tooling needs to be made for cylinder sections of different shapes and sizes; when the hoop is rounded as a whole, it is easy to cause the problem of large local misalignment; the process of installing and removing the hoop rounding tooling is cumbersome. Alternatively, a hydraulic clamping mechanism is used to clamp the cylinder section in the circumferential direction, but the hydraulic clamping mechanism is easy to deform for cylinder sections and heads with thinner wall thickness; at the same time, it is not easy to adjust the local misalignment. Alternatively, tools such as pry bars are used to adjust the misalignment, which also has the problem of easily causing damage to the cylinder section. Summary of the invention

[0005] The purpose of the present invention is to solve the problem that the existing hoop round tooling for adjusting the misalignment amount cannot be applied to cylinder sections of different sizes and shapes, and easily leads to large local misalignment; or the hydraulic clamping mechanism cannot be well applied to cylinder sections and heads with thinner wall thickness, and easily causes deformation. A device for adjusting the misalignment amount of a cylinder section group is proposed.

[0006] To solve the above technical problems, the technical solutions provided by the present invention are as follows:

[0007] A cylinder segment assembly misalignment adjustment device is arranged at the connection of two cylinder segments, and its special features are: comprising a base, a moving structure, an adjustment structure and a measuring piece;

[0008] The moving structure is arranged above the base, and the moving direction of the moving end thereof is perpendicular to the central axis plane of the cylinder section;

[0009] The adjustment structure includes two fixed plates, a cam and a motor; the two fixed plates are vertically arranged on the moving end of the moving structure and are arranged parallel to the moving direction of the moving end;

[0010] The cam is installed between two fixed plates; the cross section of the cam is a variable diameter curve; the cam is provided with a 0 position and a maximum rotation angle, and the diameter of the cam gradually increases during the process of rotating from the 0 position to the maximum rotation angle;

[0011] The motor is arranged outside a fixed plate, and its output end is connected to the input end of the cam to drive the cam to rotate;

[0012] The measuring piece is used for measuring the misalignment amount in real time.

[0013] Furthermore, the mobile structure includes a guide rail frame, a lead screw, a slider, and a hand wheel;

[0014] The guide rail frame is installed on the base, and the lead screw is installed in the middle of the guide rail frame and is parallel to the guide rail frame; the lead screw is perpendicular to the central axis surface of the cylinder section;

[0015] The driving end of the hand wheel is connected to one end of the lead screw, the slider is sleeved on the lead screw, and both sides of the slider are connected to the guide rail frame;

[0016] The slider is the moving end of the moving structure, and the two fixing plates are vertically arranged on the slider.

[0017] Furthermore, a mounting block is provided at each end of the guide rail frame, and the end of the lead screw close to the barrel section is rotatably mounted on one mounting block; the end of the lead screw away from the barrel section is rotatably mounted on another mounting block, and its end extends out of the other mounting block and is connected to the handwheel.

[0018] Furthermore, slide grooves are provided on both sides of the guide rail frame, and protruding slide plates are provided on both sides of the sliding block. The slide plates are clamped in the slide grooves for moving along the slide grooves.

[0019] Furthermore, an angular displacement sensor is integrated on the motor to measure the rotation angle of the cam.

[0020] Furthermore, the measuring component includes two laser rangefinders, which are respectively arranged above the two fixing plates, and the measuring ends thereof are aligned in the direction of the central axis surface of the cylinder section.

[0021] Furthermore, the measuring piece adopts a welding inspection ruler or a three-dimensional scanner.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention provides a device for adjusting the misalignment of cylinder segments, comprising a base, a mobile structure, an adjusting structure and a measuring piece. The adjusting structure is mounted on the mobile structure. The mobile end of the mobile structure drives the adjusting structure to move in a direction perpendicular to the center axis of the cylinder segment, so that the adjusting structure approaches or moves away from the cylinder segment. The measuring piece is used for real-time measurement of misalignment data. The adjusting structure is pressed against the cylinder segment and rotates to squeeze the outer wall of the cylinder segment, so as to adjust the misalignment of the two cylinder segments in sections and effectively ensure the assembly quality.

[0024] 2. The present invention provides a device for adjusting the misalignment of a cylinder segment. The adjustment structure includes two fixed plates, a cam and a motor. The cam is arranged between the two fixed plates, and the motor drives the cam to rotate. The cross section of the cam is a variable diameter curve. After the cam is pressed against the outer wall of the cylinder segment, it rotates in the direction of gradually increasing diameter, thereby squeezing the outer wall of the cylinder segment to achieve the purpose of adjusting the misalignment. For cylinder segments with thinner wall thickness, the technical problem of deformation of the cylinder segment is solved by using a rotary extrusion method.

[0025] 3. The device for adjusting the misalignment of a cylinder segment assembly of the present invention can realize the adjustment of the local misalignment of the cylinder segment and is suitable for cylinder segments of different shapes and sizes and has good versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of an embodiment of a device for adjusting the misalignment of a cylinder segment assembly according to the present invention;

[0027] Figure 2 It is a schematic diagram of the rotation process in an embodiment of a device for adjusting the misalignment of a cylinder segment assembly according to the present invention.

[0028] Description of reference numerals:

[0029] 11. Base; 12. Guide rail frame; 13. Lead screw; 14. Slider; 15. Hand wheel; 16. Fixed plate; 17. Cam; 18. Motor; 19. Laser rangefinder; 2. Cylinder section. DETAILED DESCRIPTION

[0030] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0031] The present invention provides a cylinder segment assembly misalignment adjustment device, which is installed at the welding point of two cylinder segments. Figure 1 As shown, the misalignment adjustment device includes a base 11, a moving structure, an adjustment structure and a measuring piece. The moving structure is arranged above the base 11, and the adjustment structure is installed on the moving structure. The moving structure drives the adjustment structure to move in a direction perpendicular to the central axis of the cylinder segment 2, so that the adjustment structure is close to or away from the cylinder segment 2. The measuring piece is used to measure the misalignment between two cylinder segments 2.

[0032] The moving structure includes a guide frame 12, a lead screw 13, a slider 14, and a handwheel 15. The guide frame 12 is mounted on the base 11, and a mounting block is provided at each end of the guide frame 12. The end of the lead screw 13 close to the barrel section 2 can be rotatably mounted on a mounting block; the end of the lead screw 13 away from the barrel section 2 can be rotatably mounted on another mounting block, and its end extends out of another limit block and is connected to the handwheel 15. The lead screw 13 is parallel to the guide frame 12. The slider 14 is sleeved on the lead screw 13. Slide grooves are provided on both sides of the guide frame 12, and protruding slide plates are provided on both sides of the slide plate 14. The slide plates are clamped in the slide grooves for moving along the slide grooves. The slide plate 14 is driven to move forward and backward along the lead screw 13 by the handwheel 15. The lead screw 13 is perpendicular to the central axis of the barrel section 2.

[0033] The adjustment structure includes two fixed plates 16, a cam 17, and a motor 18. The two fixed plates 16 are vertically arranged on the slider 14 and are arranged parallel to the moving direction of the slider 14; the cam 17 is installed between the two fixed plates 16. The cross section of the cam 17 is a variable diameter curve. The motor 18 is arranged on the outside of a fixed plate 16, and its driving end is connected to the cam 17 to drive the cam 17 to rotate. The motor 18 is also integrated with an angular displacement sensor for measuring the rotation angle of the cam 17.

[0034] The cam 17 is provided with a 0 position and a maximum rotation angle. The diameter of the cam 17 gradually increases during the rotation from the 0 position to the maximum rotation angle, thereby gradually pressing the outer wall of the barrel section 2 to achieve the purpose of adjusting the misalignment amount.

[0035] The measuring part includes two laser rangefinders 19, which are respectively installed in parallel on the upper ends of the two fixing plates 16. The measuring part measures the distance between it and the outer walls of the two barrel sections 2 in real time, and the readings of the measuring part are d1 and d2 respectively. The misalignment amount is the difference between d1 and d2. In other embodiments, the measuring part can also be a welding inspection ruler or a three-dimensional scanner.

[0036] Working process of the misalignment adjustment device: the misalignment adjustment device is located at the connection of the two barrel segments 2, the two laser rangefinders 19 are respectively aligned with the two barrel segments 2, and the cam 17 is at the 0 position; the hand wheel 15 drives the slider 14 to move toward the barrel segment 2 on the guide frame 12 until the cam 17 is close to the outer wall of one of the barrel segments 2; the two laser rangefinders 19 respectively measure the distance between the two barrel segments 2, and the readings are d1 and d2, and the difference between d1 and d2 is the misalignment; if the misalignment is not within the allowable range, the motor 18 drives the cam 17 to rotate from the 0 position to the direction of increasing diameter, and the closely attached barrel segment 2 rotates in the opposite direction to the cam 17; during the rotation, the cam 17 gradually squeezes the outer wall of the barrel segment 2, so that the misalignment between the two barrel segments 2 gradually decreases until the misalignment reaches the allowable range.

[0037] If the angular displacement sensor identifies that the cam 17 has reached the maximum rotation angle and the misalignment has not yet reached the allowable range, the handwheel 15 drives the slider 14 to slide on the guide frame 12 to separate the cam 17 from the outer wall of the barrel segment 2; the motor 18 drives the cam 17 to rotate to the 0 position, and the handwheel 15 drives the slider 14 to slide on the guide frame 12 to make the cam 17 close to the outer wall of the barrel segment 2 again, and continues to drive the cam 17 to rotate, so that the cam 17 gradually squeezes the outer wall of the barrel segment 2, and the misalignment between the two barrel segments 2 gradually decreases until the misalignment reaches the allowable range.

Claims

1. A device for adjusting the misalignment of a cylinder segment assembly, arranged at the connection between two cylinder segments (2), characterized in that: It comprises a base (11), a moving structure, an adjusting structure and a measuring piece; The movable structure is arranged above the base (11), and the moving direction of the movable end thereof is perpendicular to the central axis plane of the cylinder section (2); The adjustment structure comprises two fixed plates (16), a cam (17) and a motor (18); the two fixed plates (16) are vertically arranged on the moving end of the moving structure and are arranged parallel to the moving direction of the moving end; The cam (17) is installed between two fixed plates (16); the cross section of the cam (17) is a variable diameter curve; the cam (17) is provided with a 0 position and a maximum rotation angle, and the diameter of the cam (17) gradually increases during the process of rotating from the 0 position to the maximum rotation angle; The motor (18) is arranged on the outside of a fixed plate (16), and its output end is connected to the input end of the cam (17) to drive the cam (17) to rotate; The measuring piece is used for measuring the misalignment amount in real time.

2. The device for adjusting the misalignment of cylinder segments according to claim 1, characterized in that: The moving structure comprises a guide rail frame (12), a lead screw (13), a slide block (14), and a hand wheel (15); The guide rail frame (12) is mounted on the base (11), and the lead screw (13) is mounted in the middle of the guide rail frame (12) and is parallel to the guide rail frame (12); the lead screw (13) is perpendicular to the central axis of the cylinder section (2); The driving end of the hand wheel (15) is connected to one end of the lead screw (13), the slider (14) is sleeved on the lead screw (13), and both sides of the slider (14) are connected to the guide rail frame (12); The slider (14) is the moving end of the moving structure, and the two fixing plates (16) are vertically arranged on the slider (14).

3. The device for adjusting the misalignment of cylinder segments according to claim 2, characterized in that: The guide rail frame (12) is also provided with a mounting block at each of its two ends. The end of the lead screw (13) close to the barrel section (2) is rotatably mounted on one mounting block; the end of the lead screw (13) away from the barrel section (2) is rotatably mounted on the other mounting block, and its end extends out of the other mounting block and is connected to the hand wheel (15).

4. The device for adjusting the misalignment of cylinder segments according to claim 3 is characterized in that: Slide grooves are arranged on both sides of the guide rail frame (12), and protruding slide plates are arranged on both sides of the slider (14). The slide plates are clamped in the slide grooves and are used to move along the slide grooves.

5. The device for adjusting the misalignment of cylinder segments according to claim 4 is characterized in that: The motor (18) is also integrated with an angular displacement sensor for measuring the rotation angle of the cam (17).

6. The device for adjusting the misalignment of cylinder segments according to claim 5, characterized in that: The measuring component comprises two laser rangefinders (19) which are respectively arranged above the two fixing plates (16), and whose measuring ends are aligned in the direction of the central axis surface of the cylinder section (2).

7. The device for adjusting the misalignment of cylinder segments according to claim 5, characterized in that: The measuring piece adopts a welding inspection ruler or a three-dimensional scanner.

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