A method for controlling the installation accuracy of a ball head of a flat ball

Abstract

The application discloses a kind of control methods for the installation precision of ball flat steel ball head, and the method specifically includes the following steps: draw ball flat steel installation line on the base surface plate of ball flat steel installation, and the root of ball flat steel is aligned with the installation line of base surface plate and is constrained welding;The fixed mechanism and the moving mechanism of flexible caliper are respectively fixedly connected with the ball head of ball flat steel, and the actual spacing size between adjacent ball flat steels is read by the scale on flexible caliper;Every two ball flat steel ball heads are installed adjusting stay, and the spacing between adjacent ball flat steels is adjusted according to the difference between the actual spacing size and the theoretical spacing size between adjacent ball flat steels, and ball flat steel is completely welded and fixed with base surface plate, and the installation welding of ball flat steel is completed.The method of the application measures the spacing of ball flat steel by using flexible caliper on the ball head of ball flat steel, and adjusts the spacing of ball flat steel by using adjusting stay, which improves the installation precision of ball flat steel welding, and reduces the stress deformation when ball flat steel is welded.

Description

Technical Field

[0001] This invention belongs to the field of shipbuilding technology, specifically relating to a method for controlling the installation accuracy of ball heads for spherical flat steel. Background Technology

[0002] In shipbuilding, bulb flats are widely used as a profile in the longitudinal framework of ship structures. Due to the large triangular cross-section of the bulb flat, a significant amount of filler material is required during butt welding. When assembling and butt-jointing bulb flats, the bulb head is often the first choice for connection. However, in actual installation, the butt joint area between the bulb flat and the base plate is actually the root of the bulb flat. Relative to the root, the bulb head is a suspended structure, making it difficult to find the appropriate control dimensions during installation. Therefore, in current shipbuilding practices, it is highly likely that the precision of the bulb flat's bulb head will exceed tolerances. If adjustments to the bulb head's precision are needed during butt welding, the root of the bulb flat must first be cut. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a method for controlling the installation accuracy of ball heads of ball flat steel. The method of this invention improves the installation accuracy of ball flat steel welding by measuring the spacing of the ball flat steel with a flexible caliper and adjusting the spacing of the ball flat steel with an adjusting brace, while reducing the stress deformation during ball flat steel welding.

[0004] To achieve the above-mentioned objectives, the technical solution provided by this invention patent is as follows:

[0005] A method for controlling the installation accuracy of ball heads made of ball flat steel, the method specifically includes the following steps:

[0006] The first step is to mark the installation line of the bulb flat steel on the base panel for installation, and then align and weld the root of the bulb flat steel with the installation line of the base panel.

[0007] The second step is to fix the fixed mechanism and the moving mechanism of the flexible caliper to the ball head of the ball flat steel, and read the actual distance between adjacent ball flat steels through the scale on the flexible caliper.

[0008] The third step is to install adjusting braces on the heads of every two adjacent spherical flat steel bars, and adjust the spacing between adjacent spherical flat steel bars according to the difference between the actual spacing size and the theoretical spacing size. After the spacing size between adjacent spherical flat steel bars is adjusted, the spherical flat steel bars are completely welded and fixed to the base panel to complete the installation and welding of the spherical flat steel bars.

[0009] The specific steps for the constraint welding of the bulb flat steel and the base panel in the first step above are as follows: the bulb flat steel to be welded to the base panel includes a reference bulb flat steel and a bulb flat steel to be positioned. When the reference bulb flat steel is constrained and welded to the base panel, one side of the root of the reference bulb flat steel is constrained and welded to the base panel at intervals of 2000mm by 10mm. When the bulb flat steel to be positioned is constrained and welded to the base panel, one side of the bulb flat steel to be positioned is evenly distributed with 2-3 constraint welds of 10mm each to the base panel.

[0010] The aforementioned flexible caliper includes a fixing mechanism, a moving mechanism, and a scale. The fixing mechanism includes an adjusting plate, a curved limiting plate, and a telescopic stud. The adjusting plate and the curved limiting plate in the fixing mechanism are connected by the telescopic stud, which adjusts the distance between them. The curved limiting plate in the fixing mechanism is fixedly connected to the scale, and the adjusting plate is slidably connected to the scale. The moving mechanism has the same structure as the fixing mechanism, and both the adjusting plate and the curved limiting plate in the moving mechanism are slidably connected to the scale. Multiple moving mechanisms are provided on both sides of the fixing mechanism.

[0011] The aforementioned adjustment plate is generally rectangular in shape. A stud hole is provided at the upper end of the adjustment plate, and a scale hole is provided in the middle of the adjustment plate. A stud hole is provided at the upper end of the curved limiting plate, and a scale hole is provided in the middle of the curved limiting plate. Adjacent adjustment plates and curved limiting plates are connected by telescopic studs. The scale passes through the scale hole provided in the curved limiting plate. Multiple square grooves are provided on the end face of the scale.

[0012] The specific steps for connecting the above flexible caliper to the ball head of the ball flat steel are as follows:

[0013] S21, connect the fixing mechanism in the flexible caliper to the ball head of the reference ball flat steel, adjust the telescopic stud so that the adjusting plate and the curved limiting plate in the fixing mechanism are on both sides of the ball head of the reference ball flat steel, and fix the adjusting plate and the curved limiting plate to the ball head of the reference ball flat steel.

[0014] S22, connect the moving mechanism in the flexible caliper to the ball head of the ball flat steel to be positioned, adjust the telescopic stud so that the adjusting plate and the curved limiting plate in the moving mechanism are on both sides of the ball head of the reference ball flat steel, and fix the adjusting plate and the curved limiting plate to the ball head of the ball flat steel to be positioned.

[0015] S23, after the fixing mechanism and the moving mechanism in the flexible caliper are fixedly connected to the ball head of the reference ball flat steel and the ball flat steel to be positioned, the actual distance between adjacent ball flat steels is obtained by reading the distance between adjacent adjusting plates through the scale.

[0016] When the aforementioned flexible caliper is installed on the bulb flat steel, the adjusting plate is parallel to the side of the bulb flat steel.

[0017] The adjusting strut in the third step above includes a ball joint clamp and an adjusting module. The adjusting module includes a telescopic tube, a connecting section, and an adjusting rod. The two ends of the adjusting rod are threaded to the telescopic tube, and the telescopic tube is fixedly connected to the ball joint clamp.

[0018] The aforementioned adjusting rod is in the shape of a hollow cylinder. The two ends of the adjusting rod are provided with internal threads in opposite directions, and the middle of the adjusting rod is provided with a pin hole. One end of the telescopic tube is provided with an external thread, and the other end of the telescopic tube is fixedly connected to the connecting section.

[0019] The connecting joint is rectangular in shape. The lower end of the connecting joint is vertically connected to the top of the ball head plate. The ball head plate has a ball head groove on its inner side, and the ball head groove on the inner side of the ball head plate has the same structure as the ball head.

[0020] The specific steps for adjusting the spacing of the above-mentioned tension bracing ball flat steel are as follows:

[0021] Adjustable braces are installed on two adjacent spherical flat steel bars. The ball head clamps in the adjustable braces are respectively clamped onto the ball heads of the spherical flat steel bars. A pin is inserted into the adjusting rod and rotated to drive the adjusting rod to rotate. The spacing between the spherical flat steel bars is adjusted according to the difference between the actual spacing size and the theoretical size obtained between the adjacent spherical flat steel bars, so that the spacing size between the adjacent spherical flat steel bars meets the construction requirements. After the spacing size between the adjacent spherical flat steel bars is adjusted, the spherical flat steel bars are welded to the base panel.

[0022] The complete welding between the ball flat steel and the base panel after adjusting the spacing in the third step above is specifically as follows: when fully welding the ball flat steel to the base panel, complete welding between the root of the ball flat steel and the base panel is performed every other ball flat steel. After all the ball flat steel is welded, the flexible caliper and adjusting brace are removed.

[0023] Based on the above technical solution, the method for controlling the installation accuracy of ball heads of flat steel balls, as described in this invention patent, has achieved the following technical advantages through practical application:

[0024] 1. The present invention provides a method for controlling the installation accuracy of ball heads of ball flat steel. By using a flexible caliper to measure the spacing of the ball flat steel and using an adjusting brace to adjust the spacing of the ball flat steel, the installation accuracy of ball flat steel welding is improved, while reducing stress deformation during ball flat steel welding.

[0025] 2. This invention provides a method for controlling the installation accuracy of ball heads in spherical flat steel, overcoming the technical blind spot of traditional processes that cannot monitor the installation accuracy of ball heads during the installation and welding of spherical flat steel. This invention uses a flexible ball head caliper to reinforce the spacing between ball heads while monitoring the dimensional changes of the ball heads during welding, displaying the installation dimensions of the ball heads through scale markings. Simultaneously, the telescopic ball head adjustment strut allows for quick and convenient adjustment of the angle and spacing of the ball heads, enabling real-time adjustment of the spacing of the spherical flat steel during welding and improving welding accuracy. Attached Figure Description

[0026] Figure 1 This is a structural diagram of a flexible caliper used in a method for controlling the installation accuracy of a ball head of a flat steel ball according to the present invention.

[0027] Figure 2 This is a diagram of the adjusting bracing structure in a method for controlling the installation accuracy of a ball head made of flat steel, as described in this invention.

[0028] Figure 3 This is a schematic diagram of measuring the spacing of ball flat steel using flexible calipers in a method for controlling the installation accuracy of ball flat steel heads according to the present invention.

[0029] Figure 4 This invention relates to a method for controlling the installation accuracy of ball heads on flat steel balls. Figure 3 A schematic diagram of AA.

[0030] Figure 5 This is a schematic diagram of the use of the adjusting brace in the method for controlling the installation accuracy of the ball head of a ball flat steel ball according to the present invention.

[0031] The markings in the attached diagram are as follows: 1. Flexible caliper; 11. Scale; 12. Fixing mechanism; 13. Moving mechanism; 14. Adjusting plate; 15. Curved limit plate; 16. Telescopic stud;

[0032] 2. Adjustable brace; 21. Telescopic tube; 22. Ball joint caliper; 23. Connecting joint; 24. Pin; 25. Adjusting rod;

[0033] 3. Ball flat steel; 31. Root of ball flat steel; 32. Constraint weld; 33. Ball head of ball flat steel. Detailed Implementation

[0034] To make the objectives, technical solutions, and advantages of this invention clearer, the invention is described below with reference to specific examples shown in the accompanying drawings. However, it should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0035] like Figure 1-4The present invention pertains to a method for controlling the installation accuracy of a ball head made of flat steel, and the method specifically includes the following steps:

[0036] The first step is to mark the installation line of the bulb flat steel 3 on the base panel on which the bulb flat steel 3 is installed, and then align the root 31 of the bulb flat steel with the installation line of the base panel and weld it in place 32.

[0037] The second step is to fix the ball flat steel 3 after the constraint welding 32 is completed. Then, fix the fixing mechanism 12 and the moving mechanism 13 of the flexible caliper 1 to the ball head of the ball flat steel 3 respectively, and read the actual distance between adjacent ball flat steel 3 through the scale 11 on the flexible caliper 1.

[0038] The third step involves installing adjusting braces 2 on each pair of adjacent ball heads 33, and adjusting the spacing between adjacent ball heads 3 based on the difference between the actual and theoretical spacing. After the spacing between adjacent ball heads 3 is adjusted, the ball heads 3 are completely welded to the base panel to complete the installation and welding of the ball heads 3. By measuring the spacing between the ball heads 33 using flexible calipers 1 and adjusting the spacing between the ball heads 3 using adjusting braces 2, the installation accuracy of the ball head 3 welding is improved, while stress deformation during the welding of the ball heads 3 is reduced.

[0039] The specific steps of the constraint welding 32 between the ball flat steel 3 and the base panel in the first step above are as follows: the ball flat steel 3 to be welded to the base panel includes a reference ball flat steel and a ball flat steel to be positioned. When the reference ball flat steel is constrained and welded to the base panel 32, one side of the root of the reference ball flat steel is constrained and welded to the base panel at intervals of 2000mm by 10mm. When the ball flat steel to be positioned is constrained and welded to the base panel 32, one side of the ball flat steel to be positioned is evenly distributed with 2-3 constraint welds of 10mm each to the base panel.

[0040] like Figure 1 As shown, the flexible caliper 1 includes a fixing mechanism 12, a moving mechanism 13, and a scale 11. The fixing mechanism 12 includes an adjusting plate 14, a curved limiting plate 15, and a telescopic stud 16. The adjusting plate 14 and the curved limiting plate 15 in the fixing mechanism 12 are connected by the telescopic stud 16, which adjusts the distance between the adjusting plate 14 and the curved limiting plate 15. The curved limiting plate 15 in the fixing mechanism 12 is fixedly connected to the scale 11, and the adjusting plate 14 in the fixing mechanism 12 is slidably connected to the scale 11. The moving mechanism 13 has the same structure as the fixing mechanism 12. The adjusting plate 14 and the curved limiting plate 15 in the moving mechanism 13 are slidably connected to the scale 11. Multiple moving structures are provided on both sides of the fixing mechanism 12.

[0041] The adjusting plate 14 is generally rectangular, with a stud hole at its upper end and a scale hole in its middle. The curved limiting plate 15 has a stud hole at its upper end and a scale hole in its middle. Adjacent adjusting plates 14 and curved limiting plates 15 are connected by telescopic studs 16. The scale ruler 11 passes through the scale hole in the curved limiting plate 15. The end face of the scale ruler 11 has multiple square grooves.

[0042] like Figure 3 and Figure 4 As shown, the specific steps for connecting the flexible caliper 1 to the ball head 33 of the flat steel are as follows:

[0043] S21, connect the fixing mechanism 12 in the flexible caliper 1 to the ball head of the reference ball flat steel, adjust the telescopic stud 16 so that the adjusting plate 14 and the curved limiting plate 15 in the fixing mechanism 12 are on both sides of the ball head of the reference ball flat steel, and fix the adjusting plate 14 and the curved limiting plate 15 to the ball head of the reference ball flat steel.

[0044] S22, connect the moving mechanism 13 in the flexible caliper 1 to the ball head of the ball flat steel to be positioned, adjust the telescopic stud 16 so that the adjusting plate 14 and the curved limiting plate 15 in the moving mechanism 13 are on both sides of the ball head of the reference ball flat steel, and fix the adjusting plate 14 and the curved limiting plate 15 to the ball head of the ball flat steel to be positioned.

[0045] S23, after the fixing mechanism 12 and the moving mechanism 13 in the flexible caliper 1 are fixedly connected to the ball head of the reference ball flat steel and the ball flat steel to be positioned, the distance between adjacent adjusting plates 14 is read by the scale 11 to obtain the actual distance size between adjacent ball flat steels 3.

[0046] When the flexible caliper 1 is installed on the bulb flat steel 3, the adjusting plate 14 is parallel to the side of the bulb flat steel 3.

[0047] like Figure 2 As shown, the adjusting strut 2 in the third step includes a ball head clamp and an adjusting module. The adjusting module includes a telescopic tube 21, a connecting section 23 and an adjusting rod 25. The two ends of the adjusting rod 25 are connected to the telescopic tube 21 by threads. The telescopic tube 21 is fixedly connected to the ball head caliper 22 by the connecting section 23.

[0048] The adjusting rod 25 is a hollow cylinder. The two ends of the adjusting rod 25 are provided with internal threads in opposite directions, and the middle of the adjusting rod 25 is provided with a pin hole. One end of the telescopic tube 21 is provided with an external thread, and the other end of the telescopic tube 21 is fixedly connected to the connecting section 23.

[0049] The connecting joint 23 is generally rectangular in shape. The lower end of the connecting joint 23 is vertically connected to the top of the ball head plate. The ball head plate has a ball head groove on its inner side. The ball head groove on the inner side of the ball head plate has the same structure as the ball head 33.

[0050] like Figure 5 As shown, the specific steps for adjusting the spacing of the tension brace 2 and the ball flat steel 3 are as follows:

[0051] Adjustable bracing 2 is installed on two adjacent spherical flat steel bars 3. The ball head clamping plates in the adjustable bracing 2 are respectively clamped onto the ball head of the spherical flat steel bar 3. The pin 24 is inserted into the adjusting rod 25 and the pin 24 is rotated to drive the adjusting rod 25 to rotate. The spacing between the spherical flat steel bars 3 is adjusted according to the difference between the actual spacing size and the theoretical size obtained between the adjacent spherical flat steel bars 3, so that the spacing size of the adjacent spherical flat steel bars 3 meets the construction requirements. After the spacing size of the adjacent spherical flat steel bars 3 is adjusted, the welding between the spherical flat steel bars 3 and the base panel is carried out.

[0052] The third step, which involves adjusting the spacing to complete the welding between the ball flat steel 3 and the base panel, specifically involves welding the ball flat steel 3 to the base panel at intervals of one ball flat steel 3. After all the ball flat steel 3 have been welded, the flexible caliper 1 and the adjusting brace 2 are removed.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of the invention or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solutions of the present invention, and all such modifications and substitutions should be covered within the scope of the technical solutions claimed in the present invention.

Claims

1. A method for controlling the installation accuracy of ball heads in ball flat steel, characterized in that, The method specifically includes the following steps: The first step is to mark the installation line of the bulb flat steel on the base panel for installation, and then align and weld the root of the bulb flat steel with the installation line of the base panel. The second step is to fix the fixed mechanism and the moving mechanism of the flexible caliper to the ball head of the ball flat steel, and read the actual distance between adjacent ball flat steels through the scale on the flexible caliper. The flexible caliper includes a fixing mechanism, a moving mechanism, and a scale. The fixing mechanism includes an adjusting plate, a curved limiting plate, and a telescopic stud. The adjusting plate and the curved limiting plate in the fixing mechanism are connected by the telescopic stud, which adjusts the distance between the adjusting plate and the curved limiting plate. The curved limiting plate in the fixing mechanism is fixedly connected to the scale, and the adjusting plate in the fixing mechanism is slidably connected to the scale. The moving mechanism has the same structure as the fixing mechanism, and both the adjusting plate and the curved limiting plate in the moving mechanism are slidably connected to the scale. Multiple moving mechanisms are provided on both sides of the fixing mechanism. The third step is to install adjusting braces on the heads of every two adjacent spherical flat steel bars, and adjust the spacing between adjacent spherical flat steel bars according to the difference between the actual spacing size and the theoretical spacing size. After the spacing size between adjacent spherical flat steel bars is adjusted, the spherical flat steel bars are completely welded and fixed to the base panel to complete the installation and welding of the spherical flat steel bars.

2. The method for controlling the installation accuracy of a ball head for a flat steel ball as described in claim 1, characterized in that, The specific steps of the constraint welding between the bulb flat steel and the base panel in the first step are as follows: the bulb flat steel to be welded to the base panel includes a reference bulb flat steel and a bulb flat steel to be positioned. When the reference bulb flat steel is constrained to the base panel, one side of the root of the reference bulb flat steel is constrained to the base panel with 10mm welds at intervals of 2000mm. When the bulb flat steel to be positioned is constrained to the base panel, one side of the bulb flat steel to be positioned is evenly distributed with 2-3 10mm constraint welds to the base panel.

3. The method for controlling the installation accuracy of a ball head for a flat steel ball as described in claim 1, characterized in that, The adjusting plate is generally rectangular in shape. A stud hole is provided at the upper end of the adjusting plate, and a scale hole is provided in the middle of the adjusting plate. A stud hole is provided at the upper end of the curved limiting plate, and a scale hole is provided in the middle of the curved limiting plate. Adjacent adjusting plates and curved limiting plates are connected by telescopic studs. The scale passes through the scale hole provided in the curved limiting plate. Multiple square grooves are provided on the end face of the scale.

4. The method for controlling the installation accuracy of a ball head for a flat steel ball as described in claim 1, characterized in that, The specific steps for connecting the flexible caliper to the ball head of the flat steel ball are as follows: S21, connect the fixing mechanism in the flexible caliper to the ball head of the reference ball flat steel, adjust the telescopic stud so that the adjusting plate and the curved limiting plate in the fixing mechanism are on both sides of the ball head of the reference ball flat steel, and fix the adjusting plate and the curved limiting plate to the ball head of the reference ball flat steel. S22, connect the moving mechanism in the flexible caliper to the ball head of the ball flat steel to be positioned, adjust the telescopic stud so that the adjusting plate and the curved limiting plate in the moving mechanism are on both sides of the ball head of the reference ball flat steel, and fix the adjusting plate and the curved limiting plate to the ball head of the ball flat steel to be positioned. S23, after the fixing mechanism and the moving mechanism in the flexible caliper are fixedly connected to the ball head of the reference ball flat steel and the ball flat steel to be positioned, the actual distance between adjacent ball flat steels is obtained by reading the distance between adjacent adjusting plates through the scale.

5. The method for controlling the installation accuracy of a ball head for a flat steel ball as described in claim 4, characterized in that, When the flexible caliper is installed on the bulb flat steel, the adjusting plate is parallel to the side of the bulb flat steel.

6. The method for controlling the installation accuracy of a ball head for a flat steel ball as described in claim 1, characterized in that, The adjusting brace in the third step includes a ball head clamp and an adjusting module. The adjusting module includes a telescopic tube, a connecting section, and an adjusting rod. The two ends of the adjusting rod are threaded to the telescopic tube, and the telescopic tube is fixedly connected to the ball head clamp through the connecting section.

7. The method for controlling the installation accuracy of a ball head for a flat steel ball as described in claim 6, characterized in that, The adjusting rod is in the shape of a hollow cylinder. The two ends of the adjusting rod are provided with internal threads in opposite directions, and the middle of the adjusting rod is provided with a pin hole. One end of the telescopic tube is provided with an external thread, and the other end of the telescopic tube is fixedly connected to the connecting section.

8. The method for controlling the installation accuracy of a ball head for a flat steel ball as described in claim 7, characterized in that, The connecting joint is generally rectangular in shape. The lower end of the connecting joint is vertically connected to the top of the ball head plate. The ball head plate has a ball head groove on its inner side, and the ball head groove on the inner side of the ball head plate has the same structure as the ball head.

9. A method for controlling the installation accuracy of a ball head for a flat steel ball as described in claim 6, characterized in that, The specific steps for adjusting the spacing of the adjustable tensioning spherical flat steel are as follows: Adjustable braces are installed on two adjacent spherical flat steel bars. The ball head clamps in the adjustable braces are respectively clamped onto the ball heads of the spherical flat steel bars. A pin is inserted into the adjusting rod and rotated to drive the adjusting rod to rotate. The spacing between the spherical flat steel bars is adjusted according to the difference between the actual spacing size and the theoretical size obtained between the adjacent spherical flat steel bars, so that the spacing size between the adjacent spherical flat steel bars meets the construction requirements. After the spacing size between the adjacent spherical flat steel bars is adjusted, the spherical flat steel bars are welded to the base panel.

10. A method for controlling the installation accuracy of a ball head for a flat steel ball as described in claim 6, characterized in that, The complete welding between the ball flat steel and the base panel in the third step of adjusting the spacing is specifically as follows: when fully welding the ball flat steel to the base panel, the root of the ball flat steel is fully welded to the base panel every other ball flat steel. After all the ball flat steel is welded, the flexible caliper and adjusting brace are removed.

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