Device and method for monitoring welding deformation of base

Abstract

Provided in the present invention are a device and method for monitoring the welding deformation of a base in the field of welding. The device comprises a round base assembly, adjustment rod assemblies, pointer support assemblies and dial assemblies, wherein the adjustment rod assemblies are arrayed around the round base assembly, each adjustment rod assembly is provided with a long round rod, the axes of four long round rods are adjusted until the four long round rods are horizontal and diagonally collinear, and the four long round rods can be coplanar as a whole; each pointer support assembly is positioned in a base positioning hole, and a cylindrical pointer in each pointer support assembly is coaxial with the base positioning hole; and each dial assembly is assembled on the long round rod, each dial assembly is provided with a dial, and the cylindrical pointer is perpendicular to the dial. The cylindrical pointers display the actual positions of the base positioning holes, the dials in the dial assemblies display the hole center positions of theoretical base positioning holes, and a deviation line is marked on each dial, thus facilitating the comparison between theoretical data and actual data; and by means of monitoring the relative positions of the base positioning holes in real time, data reference and position reference are provided for welding process adjustment. The present invention is suitable for being applied as a device and method for monitoring the welding deformation of a base.

Description

A device and method for monitoring base welding deformation Technical Field

[0001] The present invention relates to deformation monitoring in the field of welding, and in particular to a device and method for monitoring deformation of base welding. Background Art

[0002] The lifting and slewing equipment was used on the unit's first special test vessel, a 6,000-ton large catamaran small waterplane area vessel in China. The lifting and slewing equipment was installed on two bases, which needed to be welded to the notches reserved in the hull. The positioning accuracy of the base locating holes for installing the lifting and slewing equipment was required to be 5460mm±2mm before welding, and 6136mm±2mm for the locating holes at the opposite corners. After welding, the corresponding locating holes on both sides were 5460mm±4mm, and the locating holes at the opposite corners were 6136mm±4mm.

[0003] Welding is a slow micro-deformation process that generates large internal stresses. For large welded parts such as bases, it is difficult to limit their deformation by relying on tooling. Even if it can be limited, the stress cannot be eliminated. After the tooling is removed, a certain amount of deformation will still occur, and there is a risk of positioning size deviation. Therefore, it is more scientific to control its deformation by welding process. In order to control the deformation welding process for a long time, considering factors such as improving welding efficiency, providing real-time and accurate deformation displacement data for the welding process, and not occupying laser measurement equipment, it is necessary to design a device to monitor and measure the relative position changes caused by welding deformation to provide real-time and accurate basis. Technical issues

[0004] The problem that the relative position and size of the positioning holes are changed due to the welding deformation of the base, making it impossible to perform real-time and accurate monitoring and measurement data. Technical Solutions

[0005] A base welding deformation monitoring device includes a circular base component, an adjustment rod component, a pointer bracket component and a dial component; the adjustment rod component is arrayed around the circular base component, the adjustment rod component has long round rods, and the axes of the four long round rods are adjusted to be horizontal and diagonally collinear so that the entire body can be coplanar; the pointer bracket component is positioned with a base positioning hole, and the cylindrical pointer in the pointer bracket component is coaxial with the base positioning hole; the dial component is assembled on the long round rod, the dial component has a dial, and the cylindrical pointer is perpendicular to the dial; during the base welding process, the cylindrical pointer displays the actual position of the base positioning hole, the dial in the dial component displays the theoretical center position of the base positioning hole, and a deviation line is drawn on the dial.

[0006] In order to further solve the technical problem to be solved by the present invention, the present invention provides a method for monitoring base welding deformation, comprising the following steps:

[0007] Step 1: Place the circular base assembly weldment so that the center of the circular base assembly weldment and the intersection of the diagonal lines of the base positioning holes are perpendicular, and fix the circular base assembly weldment;

[0008] Step 2: Install two long round rods diagonally, insert one end into the screw-nut pair at the upper end of the circular base assembly, and use the tightening screw to support the outer wall of the long round rod; at the same time, install the supporting screw pair consisting of the adjusting nut and adjusting screw to support the long round rod, and roughly adjust the axis of the long round rod to be horizontal; similarly, install the other three long round rods and the supporting screw pair, and roughly adjust the axis of the four long round rods to be horizontal, the diagonal axes to be collinear, and the overall coplanar;

[0009] Step 3: Use a laser tracker to measure the outer circle of the long round rod to determine the axis, fine-tune the locking screws and support screw pairs at the ends of the long round rods to make the axes of the four long round rods horizontal, diagonally collinear, and coplanar as a whole, and lock the double nuts of the locking screws; at the same time, install U-shaped screws I and U-shaped screws II and tighten the nuts;

[0010] Step 4: Install the base assembly weldment at the end of the long round rod near the base positioning hole, tighten the pipe clamp with bolts, insert the ball screw into the hole of the ball pressure plate and screw it into the threaded hole of the base assembly weldment, then fix the ball pressure plate to the bottom of the dial with screws, screw the fine-tuning screw into the screw hole of the dial until it hits the upper surface of the circular plane of the base assembly weldment;

[0011] Step 5: Use three fine-tuning screws to perform rough leveling, and use a laser tracker to measure the scale plate for fine adjustment, so that the scale plate is parallel to the plane determined by the four long round rods, and then lock it with double nuts;

[0012] Step 6: Install the pointer bracket assembly. First, insert the metal cylindrical hole plug wrapped with a wooden sleeve into the positioning hole of the base with an interference fit.

[0013] Step 7: Install the U-shaped bent plate and fasten it to the metal cylinder with set screws. Use a pressure plate to press the extension rod and fasten it to the U-shaped bent plate with screws.

[0014] Step 8: Insert the cylindrical pointer vertically into the front end of the extension rod so that the tip of the cylindrical pointer points to the center of the dial. After raising it by 1mm, tighten the screw at the front end of the extension rod.

[0015] Step 9: Use a laser tracker to measure and adjust the center of the dial to be coaxial with the center of the base positioning hole and the cylindrical pointer, and make the tip of the cylindrical pointer point to the center of the dial with a slight gap of 1mm;

[0016] Step 10: During the welding deformation of the base, the center of the dial is the relative theoretical basic size of the base positioning hole. The four cylindrical pointers will move with the welding deformation of the base. This is the actual position size of the base positioning hole. The offset of the needle tip of the cylindrical pointer relative to the center of the dial is the micro-displacement of the base positioning hole caused by the welding deformation, and then the total offset of the base positioning hole relative to the edge and angle is calculated. Beneficial effects

[0017] During the base welding process, the cylindrical pointer of the present invention displays the actual position of the base positioning hole, and the dial in the dial assembly displays the theoretical center position of the base positioning hole. A deviation line is drawn on the dial, facilitating comparison of theoretical and actual data. By monitoring the relative position of the base positioning hole in real time, a data reference and position benchmark is provided for adjusting the welding process. The present invention is suitable for use as a base welding deformation monitoring device and method. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The description of the present invention is given for the purpose of illustration and description, and is not exhaustive or limits the present invention to the disclosed form. Many modifications and changes are obvious to ordinary technicians in this field. The embodiments are selected and described in order to better illustrate the principles and practical applications of the present invention, and to enable ordinary technicians in this field to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

[0019] FIG1 is a front view of a base welding deformation monitoring device;

[0020] FIG2 is a top view of a base welding deformation monitoring device;

[0021] Figure 3 is a front view of the circular base assembly;

[0022] Figure 4 is a top view of the circular base assembly;

[0023] Figure 5 is a front view of the adjustment rod assembly;

[0024] Figure 6 is a front view of the pointer bracket assembly;

[0025] Figure 7 is a front view of the dial assembly;

[0026] Figure 8 is a front view of the U-shaped bent plate;

[0027] Figure 9 is a front view of the extension rod;

[0028] Figure 10 is a top view of the extension rod;

[0029] Figure 11 is a front view of the dial;

[0030] FIG12 is a top view of the dial.

[0031] In the figure, 01. Round base assembly, 02. Adjustment rod assembly, 03. Pointer bracket assembly, 04. Dial assembly, 1. U-shaped bent plate, 2. Pressure plate, 3. Base assembly weldment, 4. Extension rod, 5. Cylindrical pointer, 6. Ball screw, 7. Ball pressure plate, 8. Dial, 9. Fine-tuning screw, 10. Set screw, 11. Metal cylinder, 12. Wooden sleeve; 13. U-shaped screw pair I, 14. Adjusting nut, 15. Adjusting screw, 16. Long round rod, 17. U-shaped screw pair II, 18. Screw-nut pair, 19. Round base assembly weldment, 20. Tightening screw, 21. Base positioning hole. Best Mode for Carrying Out the Invention

[0032] A base welding deformation monitoring device includes a circular base component 01, an adjustment rod component 02, a pointer bracket component 03 and a dial component 04; the adjustment rod component 02 is arrayed around the circular base component 01, and the adjustment rod component 02 has an elongated round rod 16. The axes of the four elongated round rods 16 are adjusted to be horizontal and diagonally collinear so that they can be coplanar as a whole; the pointer bracket component 03 is positioned with the base positioning hole 21, and the cylindrical pointer 5 in the pointer bracket component 03 is coaxial with the base positioning hole 21; the dial component 04 is assembled on the elongated round rod 16, and the dial component 04 has a dial 8, and the cylindrical pointer 5 is vertical to the dial 8; during the base welding process, the cylindrical pointer 5 displays the actual position of the base positioning hole 21, and the dial 8 in the dial component 04 displays the center position of the theoretical base positioning hole, and a deviation line is drawn on the dial 8 to facilitate comparison of theoretical and actual data, and to monitor the relative position of the base positioning hole 21 in real time, providing data reference and position benchmark for adjustment of the welding process.

[0033] The circular base assembly 01 includes a circular base assembly weldment 19, a screw and nut pair 18, a tightening screw 20 and a U-shaped screw pair II 17; the circular base assembly weldment 19 is a support seat, which provides a platform for mounting and a stable device. The base is positioned on the hull. Considering the joint operation of multiple processes on the hull, it will cause impact, vibration and even local deformation to the hull, and it is necessary to provide convenience for precision re-inspection of relative position dimensions; a screw and nut pair 18 is arrayed on the upper part of the support seat, which is used to adjust the position of the end of the long round rod 16 and position and lock it through the tightening screw 20. The U-shaped screw pair II 17 is used for positioning and locking the long round rod 16 after the position is adjusted. In this embodiment, there are four groups of screw and nut pairs 18, and the corresponding long round rods 16 are also four.

[0034] The adjusting rod assembly 02 includes an elongated round rod 16, a supporting screw pair and a U-shaped screw pair Ⅰ13; the axis of the elongated round rod 16 is equivalent to the diagonal line of the base positioning hole 21, and the supporting screw pair includes an adjusting nut 14 and an adjusting screw 15, which provide external support for the elongated round rod 16, and at the same time cooperate with the screw nut pair 18 in the circular base assembly 01 to adjust the diagonal elongated round rods 16 axes to be collinear, and all the axes of the elongated round rods 16 are horizontal and coplanar. After adjustment, they are positioned and locked using the U-shaped screw pair Ⅰ13.

[0035] The pointer bracket assembly 03 includes a hole plug, a U-shaped bent plate 1, an extension rod 4, a pressure plate 2 and a cylindrical pointer 5; the hole plug includes a metal cylinder 11 and a wooden sleeve 12, the metal cylinder 11 is fastened to the wooden sleeve 12 on the outside and is placed in the base positioning hole 21 for interference connection; the U-shaped bent plate 1 is fixed to the metal cylinder 11 by a set screw 10, and a pressure plate 2 is provided on the upper plane of the U-shaped bent plate 1, and the pressure plate 2 is connected to press the extension rod 4 by a bolt connection, and the cylindrical pointer 5 is inserted into the front end notch of the extension rod 4, maintaining a vertical height of 1mm from the center of the dial 8 and locking it with bolts and nuts.

[0036] The scale plate assembly 04 includes a base assembly weldment 3, a ball screw 6, a ball pressure plate 7, a fine-tuning screw 9 and a scale plate 8;

[0037] The base assembly weldment 3 is welded by a circular plane and a pipe clamp, and is connected to the end of the long round rod 16 by bolts. The ball screw 6 is screwed into the circular plane of the base assembly weldment 3 and is fixedly suspended on the bottom surface of the dial 8 by a ball pressure plate 7, so that the dial 8 can swing freely. The fine-tuning screw 9 is rotated on the dial 8 to make the dial 8 horizontal and coplanar. In this embodiment, there are three groups of fine-tuning screws 9; among them, the dot in the center of the dial 8 is marked, and parallel reference lines are drawn every 0.5 mm within the 3 mm area of ​​the dot in the relative side direction, and parallel reference lines are drawn every 0.5 mm within the 3 mm area of ​​the dot in the relative angular direction. The overall grid-like reference line is convenient for calculating the offset, which can achieve accurate calculation of the welding deformation offset.

[0038] In this embodiment, the pointer bracket assembly 03 and the dial assembly 04 are four groups; the axis of the long round rod 16 in the device, the coincidence between the center of the dial 8 and the center of the base positioning hole 21, the horizontal coplanarity of the dial 8, and the verticality of the cylindrical pointer 5 need to be determined with the help of a laser tracker; when the base is welded, the cylindrical pointer 5 moves slightly with the deformation of the base, and the offset relative to the center of the dial 8 is read, thereby achieving the function of position detection and measurement.

[0039] A method for monitoring base welding deformation, using a base welding deformation monitoring device, includes the following steps:

[0040] Step 1: Place the circular base assembly weldment 19 so that the center of the circular base assembly weldment 19 is perpendicular to the intersection of the diagonal lines of the base positioning hole 21, and spot weld the circular base assembly weldment 19 to the hull surface;

[0041] Step 2: Install two long round rods 16 diagonally, insert one end into the screw nut pair 18 at the upper end of the round base assembly 01, and use the tightening screw 20 to support the outer wall of the long round rod 16; at the same time, install the supporting screw pair consisting of the adjusting nut 14 and the adjusting screw 15 to support the long round rod 16, and roughly adjust the axis of the long round rod 16 to be horizontal; similarly, install the other three long round rods 16 and the supporting screw pair, and roughly adjust the axis of the four long round rods 16 to be horizontal, the diagonal axes to be collinear, and the overall coplanar;

[0042] Step 3: Use a laser tracker to measure the outer circle of the long round rod 16 to determine the axis, and fine-tune the locking screws 20 and the supporting screw pair at the ends of the long round rods 16 so that the axes of the four long round rods 16 are horizontal, diagonally collinear, and coplanar as a whole. Tighten the double nuts of the locking screws 20; at the same time, install the U-shaped screw I 13 and the U-shaped screw II 17 and tighten the nuts; if necessary, re-measure with the laser tracker. This structure can most realistically simulate the measurement state of the laser tracker and improve the measurement accuracy of the device;

[0043] Step 4: Install the base assembly weldment 3 at the end of the long round rod 16 near the base positioning hole 21, tighten the pipe clamp with bolts, insert the ball screw 6 into the hole of the ball pressure plate 7 and screw it into the threaded hole of the base assembly weldment 3, then fix the ball pressure plate 7 to the bottom of the dial 8 with screws, and screw the fine-tuning screw 9 into the screw hole of the dial until it hits the upper surface of the circular plane of the base assembly weldment 3;

[0044] Step 5: Use three fine-tuning screws 9 to perform rough leveling, and use a laser tracker to measure the scale plate 8 for fine adjustment, so that the scale plate 8 is parallel to the plane determined by the four long round rods 16, and then use double nuts to lock it;

[0045] Step 6: Install the pointer bracket assembly 03. First, insert the hole plug of the metal cylinder 11 wrapped with the wooden sleeve 12 into the base positioning hole 21 with an interference fit;

[0046] Step 7: Install the U-shaped bent plate 1 and fasten it to the metal cylinder 11 with the set screws 10. Use the pressure plate 2 to press the extension rod 4 and fasten it to the U-shaped bent plate 1 with screws.

[0047] Step 8: Insert the cylindrical pointer 5 vertically into the front end of the extension rod 4, so that the tip of the cylindrical pointer 5 points to the center of the dial 8, and tighten the screw at the front end of the extension rod 4 after raising it by 1mm;

[0048] Step 9: Use a laser tracker to measure and adjust the center of the dial 8 to be coaxial with the center of the base positioning hole 21 and the cylindrical pointer 5, and make the needle tip of the cylindrical pointer 5 point to the center of the dial 8 with a slight gap of 1 mm;

[0049] Step 10: During the welding deformation of the base of the lifting and rotating equipment, the center of the dial 8 is the relative theoretical basic size of the base positioning hole. The four cylindrical pointers 5 will move with the welding deformation of the base of the lifting and rotating equipment. This is the actual position size of the base positioning hole. The offset of the needle tip of the cylindrical pointer 5 relative to the center of the dial 8 is the micro-displacement caused by the welding deformation on the base positioning hole 21. In this way, the total offset of the base positioning hole relative to the edge and relative angle can be calculated, and a benchmark can be provided to ensure that the relative size of the base positioning hole does not exceed the tolerance through the improvement of the welding process.

[0050] Through the above steps, during the welding process of the two lifting and rotating equipment bases, the relative position changes of the positioning holes of the two lifting and rotating equipment bases can be observed at any time by adjusting the welding process, thereby avoiding quality accidents caused by out-of-tolerance. Modes for Carrying Out the Invention

[0051] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned figure descriptions are intended to cover non-exclusive inclusions.

[0053] In the description of the embodiments of this application, the technical terms "first," "second," etc. are used only to distinguish different objects and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, the meaning of "plurality" is more than two, unless otherwise specifically defined.

[0054] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute an independent or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0055] In the description of the embodiments of this application, the term "and / or" is simply a description of the association relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent the following three situations: A exists alone, A and B exist simultaneously, and B exists alone. In addition, the character " / " in this document generally indicates that the associated objects are in an "or" relationship.

[0056] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0057] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0058] In the description of the embodiments of the present application, unless otherwise expressly specified or limited, technical terms such as "installed," "connected," "connected," and "fixed" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; internal connections between two components or interactions between two components. Those skilled in the art can understand the specific meanings of the above terms in the embodiments of the present application based on specific circumstances.

[0059] As shown in the figure, a base welding deformation monitoring device includes a circular base component 01, an adjustment rod component 02, a pointer bracket component 03 and a dial component 04; the adjustment rod component 02 is arrayed around the circular base component 01, and the adjustment rod component 02 has an elongated round rod 16. The axes of the four elongated round rods 16 are adjusted to be horizontal and diagonally collinear so that they can be coplanar as a whole; the pointer bracket component 03 is positioned with the base positioning hole 21, and the cylindrical pointer 5 in the pointer bracket component 03 is coaxial with the base positioning hole 21; the dial component 04 is assembled on the elongated round rod 16, and the dial component 04 has a dial 8, and the cylindrical pointer 5 is vertical to the dial 8; during the base welding process, the cylindrical pointer 5 displays the actual position of the base positioning hole 21, and the dial 8 in the dial component 04 displays the center position of the theoretical base positioning hole, and a deviation line is drawn on the dial 8 to facilitate comparison of theoretical and actual data, and real-time monitoring of the relative position of the base positioning hole 21, providing data reference and position benchmark for adjustment of the welding process.

[0060] The circular base assembly 01 includes a circular base assembly weldment 19, a screw and nut pair 18, a tightening screw 20 and a U-shaped screw pair II 17; the circular base assembly weldment 19 is a support seat, which provides a platform for mounting and a stable device. The base is positioned on the hull. Considering the joint operation of multiple processes on the hull, it will cause impact, vibration and even local deformation to the hull, and it is necessary to provide convenience for precision re-inspection of relative position dimensions; a screw and nut pair 18 is arrayed on the upper part of the support seat, which is used to adjust the position of the end of the long round rod 16 and position and lock it through the tightening screw 20. The U-shaped screw pair II 17 is used for positioning and locking the long round rod 16 after the position is adjusted. In this embodiment, there are four groups of screw and nut pairs 18, and the corresponding long round rods 16 are also four.

[0061] The adjusting rod assembly 02 includes an elongated round rod 16, a supporting screw pair and a U-shaped screw pair Ⅰ13; the axis of the elongated round rod 16 is equivalent to the diagonal line of the base positioning hole 21, and the supporting screw pair includes an adjusting nut 14 and an adjusting screw 15, which provide external support for the elongated round rod 16, and at the same time cooperate with the screw nut pair 18 in the circular base assembly 01 to adjust the diagonal elongated round rods 16 axes to be collinear, and all the axes of the elongated round rods 16 are horizontal and coplanar. After adjustment, they are positioned and locked using the U-shaped screw pair Ⅰ13.

[0062] The pointer bracket assembly 03 includes a hole plug, a U-shaped bent plate 1, an extension rod 4, a pressure plate 2 and a cylindrical pointer 5; the hole plug includes a metal cylinder 11 and a wooden sleeve 12, the metal cylinder 11 is fastened to the wooden sleeve 12 on the outside and is placed in the base positioning hole 21 for interference connection; the U-shaped bent plate 1 is fixed to the metal cylinder 11 by a set screw 10, and a pressure plate 2 is provided on the upper plane of the U-shaped bent plate 1, and the pressure plate 2 is connected to press the extension rod 4 by a bolt connection, and the cylindrical pointer 5 is inserted into the front end notch of the extension rod 4, maintaining a vertical height of 1mm from the center of the dial 8 and locking it with bolts and nuts.

[0063] The scale plate assembly 04 includes a base assembly weldment 3, a ball screw 6, a ball pressure plate 7, a fine-tuning screw 9 and a scale plate 8;

[0064] The base assembly weldment 3 is welded by a circular plane and a pipe clamp, and is connected to the end of the long round rod 16 by bolts. The ball screw 6 is screwed into the circular plane of the base assembly weldment 3 and is fixedly suspended on the bottom surface of the dial 8 by a ball pressure plate 7, so that the dial 8 can swing freely. The fine-tuning screw 9 is rotated on the dial 8 to make the dial 8 horizontal and coplanar. In this embodiment, there are three groups of fine-tuning screws 9; among them, the dot in the center of the dial 8 is marked, and parallel reference lines are drawn every 0.5 mm within the 3 mm area of ​​the dot in the relative side direction, and parallel reference lines are drawn every 0.5 mm within the 3 mm area of ​​the dot in the relative angular direction. The overall grid-like reference line is convenient for calculating the offset, which can achieve accurate calculation of the welding deformation offset.

[0065] In this embodiment, the pointer bracket assembly 03 and the dial assembly 04 are four groups; the axis of the long round rod 16 in the device, the coincidence between the center of the dial 8 and the center of the base positioning hole 21, the horizontal coplanarity of the dial 8, and the verticality of the cylindrical pointer 5 need to be determined with the help of a laser tracker; when the base is welded, the cylindrical pointer 5 moves slightly with the deformation of the base, and the offset relative to the center of the dial 8 is read, thereby achieving the function of position detection and measurement.

[0066] A method for monitoring base welding deformation, using a base welding deformation monitoring device, includes the following steps:

[0067] Step 1: Place the circular base assembly weldment 19 so that the center of the circular base assembly weldment 19 is perpendicular to the intersection of the diagonal lines of the base positioning hole 21, and spot weld the circular base assembly weldment 19 to the hull surface;

[0068] Step 2: Install two long round rods 16 diagonally, insert one end into the screw nut pair 18 at the upper end of the round base assembly 01, and use the tightening screw 20 to support the outer wall of the long round rod 16; at the same time, install the supporting screw pair consisting of the adjusting nut 14 and the adjusting screw 15 to support the long round rod 16, and roughly adjust the axis of the long round rod 16 to be horizontal; similarly, install the other three long round rods 16 and the supporting screw pair, and roughly adjust the axis of the four long round rods 16 to be horizontal, the diagonal axes to be collinear, and the overall coplanar;

[0069] Step 3: Use a laser tracker to measure the outer circle of the long round rod 16 to determine the axis, and fine-tune the locking screws 20 and the supporting screw pair at the ends of the long round rods 16 so that the axes of the four long round rods 16 are horizontal, diagonally collinear, and coplanar as a whole. Tighten the double nuts of the locking screws 20; at the same time, install the U-shaped screw I 13 and the U-shaped screw II 17 and tighten the nuts; if necessary, re-measure with the laser tracker. This structure can most realistically simulate the measurement state of the laser tracker and improve the measurement accuracy of the device;

[0070] Step 4: Install the base assembly weldment 3 at the end of the long round rod 16 near the base positioning hole 21, tighten the pipe clamp with bolts, insert the ball screw 6 into the hole of the ball pressure plate 7 and screw it into the threaded hole of the base assembly weldment 3, then fix the ball pressure plate 7 to the bottom of the dial 8 with screws, and screw the fine-tuning screw 9 into the screw hole of the dial until it hits the upper surface of the circular plane of the base assembly weldment 3;

[0071] Step 5: Use three fine-tuning screws 9 to perform rough leveling, and use a laser tracker to measure the scale plate 8 for fine adjustment, so that the scale plate 8 is parallel to the plane determined by the four long round rods 16, and then use double nuts to lock it;

[0072] Step 6: Install the pointer bracket assembly 03. First, insert the hole plug of the metal cylinder 11 wrapped with the wooden sleeve 12 into the base positioning hole 21 with an interference fit;

[0073] Step 7: Install the U-shaped bent plate 1 and fasten it to the metal cylinder 11 with the set screws 10. Use the pressure plate 2 to press the extension rod 4 and fasten it to the U-shaped bent plate 1 with screws.

[0074] Step 8: Insert the cylindrical pointer 5 vertically into the front end of the extension rod 4, so that the tip of the cylindrical pointer 5 points to the center of the dial 8, and tighten the screw at the front end of the extension rod 4 after raising it by 1mm;

[0075] Step 9: Use a laser tracker to measure and adjust the center of the dial 8 to be coaxial with the center of the base positioning hole 21 and the cylindrical pointer 5, and make the needle tip of the cylindrical pointer 5 point to the center of the dial 8 with a slight gap of 1 mm;

[0076] Step 10: During the welding deformation of the base of the lifting and rotating equipment, the center of the dial 8 is the relative theoretical basic size of the base positioning hole. The four cylindrical pointers 5 will move with the welding deformation of the base of the lifting and rotating equipment. This is the actual position size of the base positioning hole. The offset of the needle tip of the cylindrical pointer 5 relative to the center of the dial 8 is the micro-displacement caused by the welding deformation on the base positioning hole 21. In this way, the total offset of the base positioning hole relative to the edge and relative angle can be calculated, and a benchmark can be provided to ensure that the relative size of the base positioning hole does not exceed the tolerance through the improvement of the welding process.

[0077] Through the above steps, during the welding process of the two lifting and rotating equipment bases, the relative position changes of the positioning holes of the two lifting and rotating equipment bases can be observed at any time by adjusting the welding process, thereby avoiding quality accidents caused by out-of-tolerance.

[0078] Features of this embodiment:

[0079] Four long round rods 16 are mounted on the circular base assembly 19, and their axes are adjusted to be horizontal, diagonally collinear, and coplanar. Using the pointer bracket assembly 03, the cylindrical pointer 5 is aligned with the base positioning hole 21. During the base welding process of the lifting and rotating equipment, the cylindrical pointer 5 displays the actual position of the base positioning hole 21. The dial 8 in the dial assembly 04 displays the theoretical center position of the base positioning hole, and a deviation line is drawn on the dial 8 to facilitate comparison of theoretical and actual data. Real-time monitoring of the relative position of the base positioning holes provides a data reference and position benchmark for adjusting the welding process.

[0080] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention. Industrial Applicability

[0081] During the base welding process, the cylindrical pointer of the present invention displays the actual position of the base positioning hole, while the dial in the dial assembly displays the theoretical base positioning hole center position. Deviation lines are drawn on the dial to facilitate comparison of theoretical and actual data. By monitoring the relative position of the base positioning hole in real time, a data reference and position benchmark is provided for adjusting the welding process. The present invention is suitable for use as a base welding deformation monitoring device and method.

Claims

1. A base welding deformation monitoring device, characterized in that: It comprises a round base assembly (01), an adjustment rod assembly (02), a pointer bracket assembly (03) and a dial assembly (04); An array adjustment rod assembly (02) surrounds a circular base assembly (01), wherein the adjustment rod assembly (02) has a long round rod (16); a pointer bracket assembly (03) is positioned with a base positioning hole (21), and a cylindrical pointer (5) in the pointer bracket assembly (03) is coaxial with the base positioning hole (21); a dial assembly (04) is assembled on the long round rod (16), and the dial assembly (04) has a dial (8), and the cylindrical pointer (5) is perpendicular to the dial (8); during the base welding process, the cylindrical pointer (5) displays the actual position of the base positioning hole (21), and the dial (8) in the dial assembly (04) displays the center position of the theoretical base positioning hole, and a deviation line is drawn on the dial (8).

2. The base welding deformation monitoring device according to claim 1 is characterized in that: The round base assembly (01) comprises a round base assembly weldment (19), a screw nut pair (18), a locking screw (20) and a U-shaped screw pair II (17); The circular base assembly weldment (19) is a support seat, providing a platform for clamping and a stable device; a screw nut pair (18) is arranged on the upper part of the support seat, which is used to adjust the position of the end of the long round rod (16) and to position and lock it through a locking screw (20); a U-shaped screw pair II (17) is used to position and lock the long round rod (16) after the position is adjusted.

3. The base welding deformation monitoring device according to claim 1 is characterized in that: The adjusting rod assembly (02) comprises a long round rod (16), a supporting screw pair and a U-shaped screw pair I (13); The axis of the long round rod (16) is equivalent to the diagonal line of the base positioning hole (21). The support screw pair includes an adjusting nut (14) and an adjusting screw (15), which provide external support for the long round rod (16) and cooperate with the screw nut pair (18) in the round base assembly (01) to adjust the axis of the diagonal long round rod (16) to be collinear. The axis of all the long round rods (16) is horizontal and coplanar. After adjustment, the U-shaped screw pair I (13) is used to position and lock.

4. The base welding deformation monitoring device according to claim 1 is characterized in that: The pointer bracket assembly (03) comprises a hole plug, a U-shaped bent plate (1), an extension rod (4), a pressure plate (2) and a cylindrical pointer (5); The hole plug comprises a metal cylinder (11) and a wooden sleeve (12); the metal cylinder (11) is externally fastened to the wooden sleeve (12) and is placed in a base positioning hole (21) for interference connection; a U-shaped bent plate (1) is fixed to the metal cylinder (11) by means of a set screw (10); a pressure plate (2) is provided on the upper plane of the U-shaped bent plate (1); the pressure plate (2) is connected to a compression extension rod (4) by means of a bolt; a cylindrical pointer (5) is inserted into a front end notch of the extension rod (4); a vertical height of 1 mm is reserved from the center of the dial (8) and the pointer is locked with bolts and nuts.

5. The base welding deformation monitoring device according to claim 1 is characterized in that: The dial assembly (04) comprises a base assembly weldment (3), a ball screw (6), a ball pressure plate (7), a fine-adjustment screw (9) and a dial (8); The base assembly weldment (3) is welded by a circular plane and a pipe clamp, and is connected to the end of a long round rod (16) by bolts. A ball head screw (6) is screwed into the circular plane of the base assembly weldment (3), and is fixedly suspended on the bottom surface of a dial (8) by a ball head pressure plate (7), so that the dial (8) can swing freely. The fine adjustment screw (9) is rotated on the dial (8) to make the dial (8) horizontal and coplanar; wherein, a dot at the center of the dial (8) is marked, and parallel reference lines are drawn every 0.5 mm in the 3 mm area of ​​the dot in the relative side direction, and parallel reference lines are drawn every 0.5 mm in the 3 mm area of ​​the dot in the relative angle direction. The overall grid-like reference lines are formed to facilitate the calculation of the offset, and the accurate calculation of the welding deformation offset can be achieved.

6. A method for monitoring base welding deformation, characterized in that: Using a base welding deformation monitoring device as described in any one of claims 1 to 5, The following steps are involved: Step 1: placing the circular base assembly weldment (19) so that the center of the circular base assembly weldment (19) and the intersection of the diagonal lines of the base positioning hole (21) are perpendicular to each other, and fixing the circular base assembly weldment (19); Step 2: Install two long round rods (16) diagonally, insert one end of each of them into the screw nut pair (18) at the upper end of the round base assembly (01), and use the tightening screw (20) to support the outer wall of the long round rod (16); at the same time, install the supporting screw pair consisting of the adjusting nut (14) and the adjusting screw (15) to support the long round rod (16), and roughly adjust the axis of the long round rod (16) to be horizontal; similarly, install the other three long round rods (16) and the supporting screw pair, and roughly adjust the axis of the four long round rods (16) to be horizontal, the diagonal axes to be collinear and the overall coplanar; Step 3: Use a laser tracker to measure the outer circle of the long round rod (16) to determine the axis, fine-tune the locking screw (20) and the supporting screw pair at the end of the long round rod (16) so that the axes of the four long round rods (16) are horizontal, diagonally collinear, and coplanar as a whole, and lock the double nuts of the locking screw (20); at the same time, install the U-shaped screw I 13 and the U-shaped screw II 17 and tighten the nuts; Step 4: Install the base assembly weldment (3) at the end of the long round rod (16) near the base positioning hole (21), lock the pipe clamp with bolts, insert the ball head screw (6) into the hole of the ball head pressure plate (7) and screw it into the threaded hole of the base assembly weldment (3), then fix the ball head pressure plate (7) to the bottom of the dial (8) with screws, and screw the fine adjustment screw (9) into the screw hole of the dial until it hits the upper surface of the circular plane of the base assembly weldment (3); Step 5: Use three fine-tuning screws (9) to perform rough leveling, use a laser tracker to measure the scale plate (8) for fine adjustment, make the scale plate (8) parallel to the plane determined by the four long round rods (16), and lock it with double nuts; Step 6: Install the pointer bracket assembly (03), first insert the hole plug of the metal cylinder (11) wrapped with the wooden sleeve (12) into the base positioning hole (21) with an interference fit; Step 7: Install the U-shaped bent plate (1) and fasten it to the metal cylinder (11) with the set screws (10), press the extension rod (4) with the pressure plate (2) and fasten it to the U-shaped bent plate (1) with the screws; Step 8: Insert the cylindrical pointer (5) vertically through the front end of the extension rod (4) so ​​that the tip of the cylindrical pointer (5) points to the center of the dial (8), and tighten the screw at the front end of the extension rod (4) after raising it by 1 mm; Step 9: Use a laser tracker to measure and adjust the center of the scale plate (8) to be coaxial with the center of the base positioning hole (21) and the cylindrical pointer (5), and make the needle tip of the cylindrical pointer (5) point to the center of the scale plate (8) with a slight gap of 1 mm; Step 10: During the welding deformation of the base, the center of the scale plate (8) is the relative theoretical basic size of the base positioning hole. The four cylindrical pointers (5) will move with the welding deformation of the base. This is the actual position size of the base positioning hole. The offset of the needle tip of the cylindrical pointer (5) relative to the center of the scale plate (8) is the micro-displacement of the base positioning hole (21) caused by the welding deformation, and then the total offset of the base positioning hole relative to the side and angle is calculated.

7. A method for monitoring base welding deformation according to claim 6, characterized in that: In the third step, if necessary, the outer axis of the long round rod (16) can be re-measured using a laser tracker.

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