A barrel segment pairing device and pairing method

Abstract

The present application relates to a kind of cylinder segment pairing devices, mainly for solving the technical problems that existing cylinder segment pairing device is not suitable for square cylinder segment, using hydraulic clamping mechanism is prone to make cylinder segment deformation, it is not easy to adjust local edge misalignment amount;Or vertical pairing device is lower in efficiency, poor in safety, prone to cause cylinder segment damage.The present application relates to a kind of cylinder segment pairing device, including operation platform, two roller frames arranged in operation platform line, and the edge misalignment amount adjusting mechanism arranged between two roller frames.Edge misalignment amount adjusting mechanism includes moving structure, adjusting structure and measuring piece, adjusting structure is installed on moving structure, moving structure drives adjusting structure to approach or away from cylinder segment, measuring piece is used to measure edge misalignment amount data in real time, adjusting structure is close to cylinder segment and rotates extrusion cylinder segment outer wall, realizes the edge misalignment amount of two cylinder segments is adjusted gradually, and effectively guarantees the pairing quality.The present application also provides a kind of cylinder segment pairing method.

Description

TECHNICAL FIELD

[0001] The present application relates to a cylinder segment pair, in particular to a cylinder segment pair device and a cylinder segment pair method. BACKGROUND

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

[0003] The cylinder segment pair device used in the cylinder segment pair needs to ensure that the center points and the side edges of the two cylinder segments are in the same horizontal plane. In the prior art, the cylinder segment pair device can drive the centering assembly to center and clamp the cylinder segments, as shown in Figure 1 The left and right ends of the workbench 01 are symmetrically provided with a moving table 02, an X-axis moving assembly 03, a supporting assembly 04, a centering assembly 05 and a welding cover 06. Two cylinder segments to be paired are respectively placed on the two supporting assemblies 04 and are sleeved in the centering assembly 05. The centering assembly 05 is driven to adjust the misalignment between the two cylinder segments, so that the center points and the side edges are in the same horizontal plane. Then the supporting assembly 04 is driven to rotate, so that the two cylinder segments are rotated, and under the action of the welding head, the welding work of the cylinder segments is realized. The X-axis moving assembly 03 drives the centering assembly 05 to move along the moving table 02, and the centering assembly 05 is further provided with a welding cover 06. However, the device has the following disadvantages: 1. It has poor universality and cannot realize the pairing of square cylinder segments. Moreover, when pairing circular cylinder segments, it can only satisfy a limited diameter range; 2. The clamping mechanism is usually a hydraulic clamp, which is easy to deform the cylinder segments with thin wall thickness and the head; the clamping mechanism clamps the cylinder segments in the ring direction at the same time, which is not easy to adjust the local misalignment; 3. The device has a complex structure, high maintenance cost and high failure rate.

[0004] In the prior art, a vertical cylinder segment pairing device is also used, in which the first cylinder segment is vertically placed on the pairing platform, and the second cylinder segment is vertically lifted and placed above the first cylinder segment. The misalignment between the cylinder segments is adjusted by using a lever and the like. However, it has the following disadvantages: 1. It increases the process of turning over the cylinder segments and the cylinder, has low efficiency and poor safety; 2. It cannot be applied to cylinder segments with long length; 3. The use of a lever and the like to adjust the misalignment is easy to cause damage to the cylinder segments. SUMMARY

[0005] The present application aims to solve the technical problems of the prior art cylinder segment pairing device, which is not suitable for square cylinder segments, uses a hydraulic clamping mechanism to easily deform the cylinder segments and is not easy to adjust the local misalignment; or uses a vertical cylinder segment pairing device, which has low efficiency, poor safety and is easy to cause damage to the cylinder segments, and proposes a cylinder segment pairing device and a cylinder segment pairing method.

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

[0007] A barrel section assembling device, characterized in that it comprises a working platform, two roller frames and a misalignment amount adjusting mechanism.

[0008] The two roller frames are fixed on the working platform and arranged side by side, and are respectively used for carrying two barrel sections to be assembled so that the central axial surfaces of the two barrel sections to be assembled are located on the same plane and driving the barrel sections to rotate.

[0009] The misalignment amount adjusting mechanism comprises a base, a moving structure, an adjusting structure and two measuring members.

[0010] The base is fixed on the working platform and located at the middle position of one end of the two roller frames, and the moving structure is arranged above the base, and the moving direction of the moving end of the moving structure is perpendicular to the central axial surface of the barrel section.

[0011] The adjusting structure comprises two fixed plates, a cam and a motor, and the two fixed plates are arranged perpendicularly on the moving end of the moving structure and parallel to the moving direction of the moving end.

[0012] The cam is installed between the 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 from the 0 position to the maximum rotation angle.

[0013] The motor is arranged outside one of the fixed plates, the driving end of the motor is connected with the cam, and the motor is used for driving the cam to rotate.

[0014] The two measuring members are respectively installed on the upper ends of the two fixed plates, the measuring ends of the two measuring members respectively correspond to the assembling end outer walls of the two barrel sections to be assembled, and the two measuring members are used for measuring the distances between the two measuring members and the outer walls of the two barrel sections in real time.

[0015] Further, the moving structure comprises a guide rail frame, a lead screw, a sliding block and a hand wheel.

[0016] The guide rail frame is installed on the base, the lead screw is installed in the middle of the guide rail frame and parallel to the guide rail frame, and the lead screw is perpendicular to the barrel section.

[0017] The hand wheel is connected with the end of the lead screw away from the barrel section, the sliding block is sleeved on the lead screw, and the two sides of the sliding block are connected with the guide rail frame.

[0018] The sliding block is the moving end of the moving structure, and the two fixed plates are arranged perpendicularly on the sliding block.

[0019] Further, each of the roller frames comprises a bottom plate and two rollers; the two rollers are both cylindrical and are located at two ends of the bottom plate respectively; a roller motor is arranged in each of the rollers for driving the cylinder segment to rotate.

[0020] Further, the two measuring members are both laser range finders.

[0021] Further, the motor is further integrated with an angular displacement sensor for measuring the rotation angle of the cam.

[0022] Meanwhile, the application further provides a cylinder segment pairing method based on the cylinder segment pairing device, which is characterized by comprising the following steps:

[0023] S1, placing two cylinder segments to be paired on two roller frames respectively, so that the central axial surfaces of the two cylinder segments to be paired are located on the same plane;

[0024] S2, the measuring ends of the two measuring members correspond to the pairing end outer walls of the two cylinder segments to be paired respectively, and the cam is located at 0 position; the cam is driven to move towards the cylinder segment direction by the moving structure until the cam is attached to the outer wall of one of the cylinder segments;

[0025] S3, the two measuring members measure the distances between them and the two cylinder segments respectively, and the readings are d1 and d2, and the difference between d1 and d2 is the edge error; the allowable value of the edge error is L;

[0026] If |d1-d2|≤L, the edge error is within the allowable range, then step S6 is performed;

[0027] If |d1-d2|>L, the edge error is not within the allowable range, then step S4 is performed to adjust the edge error;

[0028] S4, the cam is driven to rotate from 0 position to the direction of increasing diameter by the motor, and the roller frame drives the cylinder segment to rotate in the direction opposite to the cam;

[0029] S5, the cam gradually extrudes the outer wall of the cylinder segment during the rotation process, so that the edge error between the two cylinder segments is reduced, then the cam and the cylinder segment are stopped, and step S3 is returned;

[0030] S6, spot welding is performed on the two cylinder segments;

[0031] S7, the cylinder segment is rotated to the next spot welding position, and steps S3 to S6 are repeated until all spot weldings are completed, so that the cylinder segment pairing is realized.

[0032] Further, if |d1-d2|>L, but the cam has reached the maximum rotation angle, the slider is driven to slide on the guide frame by the hand wheel, driving the cam to move away from the barrel section, so that the cam is separated from the outer wall of the barrel section; then, the cam is rotated to 0 position, the slider is driven to slide on the guide frame by the hand wheel, driving the cam to move close to the barrel section, so that the cam is again tightly attached to the outer wall of the barrel section, and then step S4 is performed.

[0033] Compared with the prior art, the present application has the following beneficial effects:

[0034] 1. A barrel section pairing device, comprising a working platform, two roller frames arranged in a row on the working platform, and a misalignment amount adjusting mechanism arranged between the two roller frames. The misalignment amount adjusting mechanism comprises a moving structure, an adjusting structure and a measuring element. The adjusting structure is mounted on the moving structure. The moving end of the moving structure drives the adjusting structure to move in a direction perpendicular to the barrel section, so that the adjusting structure is close to or away from the barrel section. The measuring element is used to measure the misalignment amount data in real time. The adjusting structure is tightly attached to the barrel section and rotates to extrude the outer wall of the barrel section, so as to realize step-by-step adjustment of the misalignment amount of the two barrel sections, and effectively ensure the pairing quality.

[0035] 2. A barrel section pairing device, wherein the roller frame comprises a bottom plate and rollers arranged at both ends of the bottom plate. The roller frame is suitable for pairing square or circular barrel sections, and can efficiently and quickly realize barrel section pairing. The device has the characteristics of strong universality, simple structure and easy operation.

[0036] 3. A barrel section pairing device, wherein the adjusting structure comprises 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 tightly attached to the outer wall of the barrel section, it rotates in the direction of gradually increasing diameter, so as to extrude the outer wall of the barrel section and achieve the purpose of adjusting the misalignment amount. For barrel sections with thin wall thickness, the rotating extrusion method solves the technical problem of barrel section deformation.

[0037] 4. A barrel section pairing method, wherein the misalignment amount of the two barrel sections is measured in real time by the measuring element. After the cam and the outer wall of the barrel section are tightly attached, the cam is controlled to rotate in the direction of increasing diameter, and the barrel section rotates in the opposite direction, so that the cam extrudes the outer wall of the barrel section and achieves the purpose of reducing the misalignment amount. When the misalignment amount reaches the allowable range, the cam and the barrel section are stopped, and spot welding is performed on the two barrel sections. The process is repeated until the spot welding of the outer periphery of the two barrel sections is completed. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 Fig. 1 is a structural schematic view of a prior art pairing and splicing device using a driving centering assembly;

[0039] Figure 1 Reference signs in the drawings:

[0040] 01. Worktable; 02. Moving table; 03. X-axis moving assembly; 04. Support assembly; 05. Centering assembly; 06. Welding cover;

[0041] Figure 2 This is a schematic diagram of the usage state structure of an embodiment of the cylindrical section assembly device of the present invention;

[0042] Figure 3 This is a schematic diagram of an embodiment of the cylindrical section assembly device of the present invention;

[0043] Figure 4 This is a schematic diagram of the misalignment adjustment mechanism in an embodiment of the cylinder section assembly device of the present invention;

[0044] Figure 5 This is a schematic diagram illustrating the position adjustment of the cylinder sections in an embodiment of the cylinder section assembly method of the present invention.

[0045] Figures 2-5 Explanation of reference numerals in the attached figures:

[0046] 1. Working platform; 2. Roller frame; 21. Base plate; 22. Roller; 3. Misalignment adjustment mechanism; 31. Base; 32. Guide rail frame; 33. Lead screw; 34. Slider; 35. Handwheel; 36. Fixing plate; 37. Cam; 38. Motor; 39. Measuring piece; 4. Cylindrical section. Detailed Implementation

[0047] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0048] This invention provides a cylindrical section assembly device, such as... Figure 2 As shown, it includes a working platform 1, two roller frames 2, and a misalignment adjustment mechanism 3 disposed between the two roller frames 2.

[0049] like Figure 3 As shown, the roller frame 2 and the misalignment adjustment mechanism 3 are both fixedly installed on the work platform 1. The work platform 1 is used to ensure that the roller frame 2 and the misalignment adjustment mechanism 3 are located on the same horizontal reference.

[0050] Two roller frames 2 are mounted on the working platform 1, and are arranged side by side and aligned. They are used to support the two cylindrical sections 4 to be assembled, ensuring that the central axial surfaces of the two sections 4 are on the same plane. Each roller frame 2 includes a base plate 21 and two rollers 22. Both rollers 22 are cylindrical and located at opposite ends of the base plate 21. Each roller 22 contains a roller motor to drive the rotation of the cylindrical section 4.

[0051] like Figure 4As shown, the misalignment amount adjusting mechanism 3 comprises a base 31, a moving structure, an adjusting structure and two measuring devices 39. The base 31 is fixed on the working platform 1 and located between the rollers 22 at one end of the two roller frames 2. The moving structure is arranged above the base 31, and the adjusting structure is mounted on the moving structure. The moving end of the moving structure drives the adjusting structure to move in a direction perpendicular to the barrel segment 4, so that the adjusting structure is close to or away from the barrel segment 4. The measuring device 39 is mounted above the adjusting structure.

[0052] The moving structure comprises a guide rail frame 32, a lead screw 33, a sliding block 34 and a hand wheel 35. The guide rail frame 32 is mounted on the base 31, the lead screw 33 is mounted in the middle of the guide rail frame 32 and is parallel to the guide rail frame 32, and the hand wheel 35 is mounted at one end of the lead screw 33 away from the barrel segment 4. The sliding block 34 is mounted on the lead screw 33, and the two sides of the sliding block 34 are connected with the guide rail frame 32. The sliding block 34 is driven to move forward and backward along the lead screw 33 by the hand wheel 35. The lead screw 33 is perpendicular to the barrel segment 4.

[0053] The adjusting structure comprises two fixed plates 36, a cam 37 and a motor 38. The two fixed plates 36 are arranged vertically on the sliding block 34 and are arranged in parallel with the moving direction of the sliding block 34. The cam 37 is mounted between the two fixed plates 36, and the cross section of the cam 37 is a variable diameter curve. The motor 38 is arranged outside one of the fixed plates 36, and the driving end of the motor 38 is connected with the cam 37 for driving the cam 37 to rotate. An angular displacement sensor is also integrated on the motor 38 for measuring the rotation angle of the cam 37.

[0054] The cam 37 is provided with a 0 position and a maximum rotation angle. During the process of rotating the cam 37 from the 0 position to the maximum rotation angle, the diameter gradually increases, so as to gradually press the barrel segment 4 and achieve the purpose of adjusting the misalignment amount.

[0055] The two measuring devices 39 are laser range finders and are respectively aligned and mounted at the upper ends of the two fixed plates 36. The measuring ends of the two measuring devices 39 are parallel to each other. The measuring ends of the measuring devices 39 respectively correspond to the outer walls of the two barrel segments 4 to be matched, for measuring the distances between the measuring ends and the outer walls of the two barrel segments 4 in real time. The readings of the measuring devices 39 are d1 and d2 respectively.

[0056] The application also provides a barrel segment matching method, which specifically comprises the following steps:

[0057] S1, placing two barrel segments 4 to be matched on the two roller frames 2 respectively, so that the central axis surfaces of the two barrel segments 4 to be matched are located on the same plane;

[0058] S2, as Figure 5As shown, the edge misalignment adjusting mechanism 3 is located at the connection of the two cylinder segments 4, the measuring ends of the two measuring members 39 correspond to the outer walls of the two cylinder segments 4 to be matched respectively, and the cam 37 is located at the 0 position; the hand wheel 35 drives the sliding block 34 to move on the guide rail frame 32 towards the cylinder segment 4 until the cam 37 is attached to the outer wall of one of the cylinder segments 4;

[0059] S3, the two laser range finders measure the distances between the two cylinder segments 4 respectively, and the readings are d1 and d2, then the difference between d1 and d2 is the edge misalignment; the allowable value of the edge misalignment is L;

[0060] If |d1-d2|≤L, the edge misalignment reaches the allowable range, and step S6 is performed to weld and match the two cylinder segments 4;

[0061] If |d1-d2|>L, the edge misalignment is not within the allowable range, and step S4 is performed to adjust the edge misalignment;

[0062] If |d1-d2|>L and the angular velocity sensor identifies that the cam 37 has reached the maximum rotation angle, the hand wheel 35 drives the sliding block 34 to slide on the guide rail frame 32 to drive the cam 37 to move away from the cylinder segment 4, so that the cam 37 is separated from the outer wall of the cylinder segment 4; then, the cam 37 is rotated to the 0 position, the hand wheel 35 drives the sliding block 34 to slide on the guide rail frame 32 to drive the cam 37 to move towards the cylinder segment 4, so that the cam 37 is attached to the outer wall of the cylinder segment 4 again, and step S4 is performed again.

[0063] S4, the motor 38 drives the cam 37 to start rotating from the 0 position to the direction of increasing diameter, so that the rollers 22 on the roller frame 2 are driven by the roller motor to rotate the cylinder segment 4 in the opposite direction of the cam 37;

[0064] S5, during the rotation, the cam 37 gradually presses the outer wall of the cylinder segment 4, so that the edge misalignment between the two cylinder segments 4 is reduced, then the cam 37 and the cylinder segment 4 stop rotating, and return to step S3:

[0065] S6, the two cylinder segments 4 are welded and matched;

[0066] S7, the cylinder segment 4 is rotated to the next tack welding position, and steps S3 to S6 are repeated until all the tack welding is completed, and the matching of the cylinder segment 4 is realized.

[0067] The present application can efficiently and quickly realize the matching of various sizes of square, round and circular shapes. The device has strong universality, simple structure and convenient operation. The edge misalignment adjusting mechanism 3 can realize the adjustment of the edge misalignment in sections, and the edge misalignment data is measured in real time, which effectively ensures the matching quality.

Claims

1. A barrel section pairing device, characterized by: It comprises a work platform (1), two roller frames (2) and a misalignment adjustment mechanism (3); The two roller frames (2) are fixed on the work platform (1) and are arranged side by side, and are used for bearing two barrel segments (4) to be coupled, making the central axial surfaces of the two barrel segments (4) to be coupled be located on the same plane, and driving the barrel segments (4) to rotate; The misalignment adjustment mechanism (3) comprises a base (31), a moving structure, an adjusting structure and two measuring members (39); The base (31) is fixed on the work platform (1) and is located at the middle position of one end of the two roller frames (2); the moving structure is arranged above the base (31), and the moving direction of the moving end of the moving structure is perpendicular to the central axial surface of the barrel segment (4); The adjusting structure comprises two fixed plates (36), a cam (37) and a motor (38); the two fixed plates (36) are arranged perpendicularly on the moving end of the moving structure and are arranged in parallel with the moving direction of the moving end; The cam (37) is installed between the two fixed plates (36); the cross section of the cam (37) is a variable-diameter curve; the cam (37) is provided with a 0 position and a maximum rotation angle, and the diameter of the cam (37) gradually increases in the process of rotating from the 0 position to the maximum rotation angle; The motor (38) is arranged outside one of the fixed plates (36), and the driving end of the motor (38) is connected with the cam (37) and is used for driving the cam (37) to rotate; The two measuring members (39) are respectively installed on the upper ends of the two fixed plates (36), and the measuring ends of the two measuring members (39) correspond to the coupling end outer walls of the two barrel segments (4) to be coupled respectively, and are used for measuring the distances between the two barrel segments (4) and the coupling end outer walls in real time; The cam (37) is driven by the motor (38) to start rotating from the 0 position to the direction of increasing diameter, and the roller frame (2) drives the barrel segment (4) to rotate in the direction opposite to the cam (37); In the rotating process, the cam (37) gradually extrudes the outer wall of the barrel segment (4), so that the misalignment between the two barrel segments (4) is reduced.

2. The barrel segment coupling device according to claim 1, characterized in that: The moving structure comprises a guide rail frame (32), a lead screw (33), a sliding block (34) and a hand wheel (35); The guide rail frame (32) is installed on the base (31), the lead screw (33) is installed in the middle of the guide rail frame (32) and is parallel to the guide rail frame (32); and the lead screw (33) is perpendicular to the barrel segment (4); The hand wheel (35) is connected with one end of the lead screw (33) away from the barrel segment (4), the sliding block (34) is sleeved on the lead screw (33), and the two sides of the sliding block (34) are connected with the guide rail frame (32); The sliding block (34) is the moving end of the moving structure, and the two fixed plates (36) are arranged perpendicularly on the sliding block (34).

3. The barrel segment coupling device according to claim 2, characterized in that: Each roller frame (2) comprises a bottom plate (21) and two rollers (22); the two rollers (22) are both cylindrical and are located at the two ends of the bottom plate (21); and a roller motor is arranged in each roller (22) for driving the barrel segment (4) to rotate.

4. The device for pairing the segments of a cylinder according to claim 3, characterized in that: Both of the measuring members (39) are laser range finders.

5. The device for pairing the segments of a cylinder according to claim 4, characterized in that: The motor (38) is further integrated with an angular displacement sensor for measuring the rotation angle of the cam (37).

6. A method of assembling a pair of barrel segments using a device according to any one of claims 2 to 5, wherein: The steps include: S1, placing two segments (4) to be paired on two roller frames (2) respectively, so that the center surfaces of the two segments (4) to be paired are located on the same plane; S2, the measuring ends of the two measuring members (39) correspond to the outer walls of the pairing ends of the two segments (4) to be paired respectively, and the cam (37) is located at 0 position; the cam (37) is driven to move towards the segments (4) by the moving structure until the cam (37) is tightly attached to the outer wall of one of the segments (4); S3, the two measuring members (39) measure the distances between them and the two segments (4) respectively, and the readings are d1 and d2, then the difference between d1 and d2 is the misalignment amount; the allowable value of the misalignment amount is L; If , the misalignment amount is within the allowable range, then step S6 is performed; If the edge offset is not within the allowable range, then step S4 is performed to adjust the edge offset. S4, the cam (37) is driven by the motor (38) to start rotating from 0 position to the direction of increasing diameter, and the roller frame (2) drives the segments (4) to rotate in the opposite direction of the cam (37); S5, during the rotation process, the cam (37) gradually presses the outer wall of the segments (4), so that the misalignment amount between the two segments (4) decreases, then the cam (37) and the segments (4) stop rotating, and return to step S3; S6, spot welding is performed on the two segments (4); S7, rotate the segments (4) to the next spot welding position, repeat steps S3 to S6 until all spot welding is completed, and the pairing of the segments (4) is realized.

7. A method of segmenting a cylinder according to claim 6, wherein, In step S3: If If the cam (37) has reached the maximum rotation angle, the slider (34) is driven to slide on the guide frame (32) by the hand wheel (35), which drives the cam (37) to move away from the barrel segment (4), so that the cam (37) is separated from the outer wall of the barrel segment (4); then, the cam (37) is rotated to the 0 position, the slider (34) is driven to slide on the guide frame (32) by the hand wheel (35), which drives the cam (37) to move towards the barrel segment (4), so that the cam (37) is again tightly attached to the outer wall of the barrel segment (4), and step S4 is performed again.

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