A high-precision assembly method for ultra-high vertical friction stir welding system bracket

Abstract

The present invention relates to a high-precision assembly method for a bracket of an ultra-high vertical friction stir welding system, including: guide rail and rack installation, including: pre-assembly molding of a column in a horizontal state, adjusting the positions of a plurality of column segments, fixing the plurality of column segments to each other after the straightness of the guide rail installation bar is within a set range, punching a saddle pin hole on the connecting surface of two adjacent column segments; installing the guide rail and the rack, separating the plurality of column segments of the column after the installation is completed, and completing the installation of the guide rail and the rack; bracket assembly, including: installing four column segments of the first layer of the bracket at the designed position, and sequentially installing the crossbeam and arc beam of the first layer of the bracket; installing the remaining brackets layer by layer from bottom to top, when installing each layer of the bracket, first installing the four column segments with the saddle pin hole between the connecting surfaces of two adjacent column segments of each column as a reset reference, and then sequentially installing the crossbeam and arc beam; completing the assembly of the bracket. The present application can achieve high-precision assembly of the bracket.

Description

Technical Field

[0001] The invention relates to the field of friction stir welding system technology, and in particular to a high-precision assembly method for an ultra-high vertical friction stir welding system bracket. Background Art

[0002] In order to meet the needs of deep space exploration projects in my country's aerospace field, the new generation of launch vehicles has made a leap forward in carrying capacity. With its capacity increasing several times, its tanks have also shown the characteristics of super-long, large diameter and new structure. The traditional horizontal friction stir welding system is no longer applicable to tank products with super-long size and poor rigidity. Therefore, an ultra-high vertical friction stir welding system was manufactured to meet the production needs of the product. The ultra-high vertical friction stir welding system is mainly composed of a bracket system and a welding system installed on the bracket system, in which the bracket system is the carrier of the entire welding system.

[0003] Reference Figure 1-2 As shown, the main body of the support system includes four columns 1, and two pairs of vertical heavy-duty linear guides 2 and high-precision drive racks 3 are arranged on the side of each column 1. Each column 1 is divided into multiple column segments 11 in the height direction, and adjacent column segments 11 are connected by bolts. Corresponding to each pair of heavy-duty linear guides 2 and high-precision drive racks 3, they are also divided into multiple sections in the height direction, and the support system is divided into multiple layers in the height direction (illustrated as four layers in the figure). Each layer also includes two crossbeams 4 and an arc beam 5. A crossbeam 4 of each layer connects two column segments 11 to form a support unit, and an arc beam 5 of each layer connects two support units. Four support units connected to each other in the height direction constitute a half support. As a carrier for the production of rocket tanks, the assembly accuracy of this support system directly affects the manufacturing quality of the tank. Therefore, how to achieve high-precision assembly of ultra-high support systems has become an important problem that technicians in this field need to solve urgently. Summary of the invention

[0004] Based on the above description, the present invention provides a high-precision assembly method for an ultra-high vertical friction stir welding system bracket to achieve high-precision assembly of an ultra-high bracket system.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: The present application provides a high-precision assembly method for an ultra-high vertical friction stir welding system bracket, and the technical solution adopted is as follows: A high-precision assembly method for an ultra-high vertical friction stir welding system bracket, comprising: Rail and rack installation, including: Pre-assemble the column in a horizontal state, adjust the positions of multiple column segments of the column, make the straightness of the guide rail installation strip on the column within the set range, fix the multiple column segments of the column to each other, and punch the connecting surfaces of two adjacent column segments of the column with saddle pin holes; Install the guide rails and racks, and after installation, separate the multiple column segments of the column to complete the installation of the guide rails and racks; Bracket assembly, including: Install the four column segments of the first layer of the support at the designed position, and install the cross beams and curved beams of the first layer of the support in sequence; Install the remaining brackets layer by layer from bottom to top. When installing each layer of brackets, first install four column segments using the saddle pin holes between the connecting surfaces of two adjacent column segments of each column as the reset reference, and then install the crossbeams and curved beams in sequence; Complete the bracket assembly.

[0006] Preferably, the installation guide rail and the rack are installed to separate the plurality of column segments of the column after installation, including: Place two columns constituting a half bracket horizontally and at the same height, and make the connection surfaces of the two columns and the crossbeam face each other, adjust the relative angle between the two columns so that the parallelism of the guide rail mounting strips on the two columns is within a set range, and adjust the distance between the two columns so that the horizontal distance between a guide rail mounting strip on one column and a guide rail mounting strip on the other column is within a set range; Install guide rails and racks; According to the distance between the connection surface of one column with the beam and the connection surface of another column with the beam, adjust the thickness of the adjustment pad between the beam and the column and install the beam, record the thickness of the adjustment pad between each beam and the column, separate the beam from the column after completion, and separate multiple column segments of each column; When assembling the bracket, set the adjustment pads according to the recorded thickness of the adjustment pads between the corresponding beams and the columns and install the beams.

[0007] Preferably, a reference surface parallel to the guide rail positioning surface is provided on the top of the four column segments of each layer of the bracket, and in the two bracket units of each layer of the bracket, the two column segments in each bracket unit are respectively the first segment and the second segment, wherein the first segment is connected to the arc beam; When installing the remaining supports layer by layer from bottom to top, before installing the curved beams of each layer of the supports, the tops of the first segment of one support unit and the second segment of another support unit are moved closer to or farther away from each other according to the measured distance between the reference plane on the first segment of one support unit and the reference plane on the second segment of another support unit, until the measured distance is within the set range.

[0008] Preferably, the step of bringing the top of the first segment of one bracket unit and the top of the second segment of another bracket unit closer to or farther away from each other is performed by a side-pull tool, and the side-pull tool comprises: A connecting tool, which includes two cross-arranged and connected connecting beams; Two sets of adjustment tools, respectively used to be connected to the two connecting beams, the adjustment tools include a fixing component and an adjustment component, the fixing component and the adjustment component are respectively used to be connected to the two ends of the connecting beam; Wherein, it is suitable to connect the first segment of a bracket unit and the second segment of another bracket unit through a connecting beam, and the connecting beam is perpendicular to the reference plane on the first segment, and one end of the connecting beam is fixed to the first segment through the fixing assembly, and the other end is connected to the second segment through the adjusting assembly, and the second segment and the connecting beam are moved closer to or farther away from each other through the adjusting assembly; At the same time, another first segment and a second segment are connected by another connecting beam, and the connecting beam is perpendicular to the reference plane on the second segment, and one end of the connecting beam is fixed to the second segment by the fixing assembly, and the other end is connected to the first segment by the adjusting assembly, and the first segment and the connecting beam are made to move closer to or farther away from each other by the adjusting assembly.

[0009] Preferably, a side pull support plate is provided on the top of the four column segments of each layer of the bracket, and the reference plane is provided on the side pull support plate; The fixing assembly includes fixing bolts, which are suitable for fixing the connecting beam and the side pull support plate on the corresponding column segment through the fixing bolts; The adjustment assembly includes a pulling bolt and a pushing bolt, which are suitable for connecting the connecting beam and the side pulling support plate on the corresponding column segment through the pulling bolt, and the pulling bolt passes through the side pulling support plate and is threadedly connected to the connecting beam, and the pushing bolt is threadedly connected to the side pulling support plate and one end is abutted against the connecting beam, and the axes of the pulling bolt and the pushing bolt are perpendicular to the reference plane on the side pulling support plate.

[0010] Preferably, when the connecting beam is fixed to the side-pull support plate on the corresponding column segment by the fixing bolts, the end face of the connecting beam is made to fit with the reference plane on the side-pull support plate, and the distance between the end face of the other end of the connecting beam and the reference plane on the side-pull support plate connected to the other end is measured, and the distance between the reference planes on the two side-pull support plates connected at both ends of a connecting beam is calculated based on the length of the connecting beam.

[0011] Preferably, the connecting beam includes a middle section and measuring sections at both ends, the middle sections of the two connecting beams are connected to each other, and in the length direction of the connecting beam, the thickness of the middle section in a direction perpendicular to the plane formed by the two connecting beams gradually increases from both ends to the middle.

[0012] Preferably, the method of installing four column segments by using the saddle pin hole between the connecting surfaces of two adjacent column segments of each column as a reset reference comprises: Place the column segment to be installed on the installed column segment for rough positioning; The relative position of each column segment to be installed in the horizontal direction with respect to the installed column segment is adjusted by the side top tooling, and the side top tooling comprises: A connecting portion, which is used to connect to the side surface of the column segment to be installed close to the bottom; A support portion connected to the connecting portion. When the connecting portion is connected to the column segment to be installed after rough positioning, the support portion is located on one side of the installed column segment and the bottom height is lower than the top height of the installed column segment; An adjusting bolt, whose thread is assembled on the supporting part, and when the connecting part is connected to a side surface of the column segment to be installed, the axis of the adjusting screw is perpendicular to the side surface of the column segment to be installed, and is suitable for abutting against the side surface of the installed column segment through the adjusting bolt, and turning the adjusting bolt to make the column segment to be installed move along the axial direction of the adjusting bolt relative to the installed column segment.

[0013] Compared with the prior art, the technical solution of the present application has at least the following beneficial technical effects: 1. The present application assembles and forms the column in a horizontal state, makes the straightness of the guide rail mounting bar on the column within a set range, and then installs the guide rail and the rack, thereby completing the precise assembly of the guide rail and the rack on the bracket. Compared with positioning, adjusting and installing the guide rail and the rack when the column is in a vertical state during the bracket assembly process, installation in a horizontal state is more convenient and easier to control accuracy, thereby improving the installation accuracy of the guide rail and the rack. After the columns are assembled and formed in a horizontal state and multiple column segments are connected to each other, saddle pin holes are drilled on the connecting surfaces of two adjacent column segments. The saddle pin holes provide a reset reference for the installation of column segments of each layer of the remaining brackets, except for the four column segments of the first layer of the bracket, during the subsequent bracket assembly process. The saddle pins and saddle pin holes can be used to position and install the column segments of each layer of the remaining brackets. On the one hand, it is convenient to position and install the column segments of each layer of the remaining brackets and improve the installation efficiency. On the other hand, after the bracket is assembled, the assembly accuracy between each column segment of the column and the assembly accuracy of the column as a whole, as well as the straightness and installation accuracy of the guide rails and racks on each column can be guaranteed, thereby ensuring the assembly accuracy of the bracket.

[0014] 2. This application places two columns horizontally at the same height, adjusts the angle and distance between the two columns to the set value, adjusts the thickness of the adjustment pad between the beam and the column according to the length of the beam and the distance between the two columns, and installs the adjustment pad. That is, the half bracket is assembled into a standard half bracket in a horizontal state, and then when assembling the bracket, it is only necessary to install the corresponding beam in a vertical state according to the recorded thickness of the adjustment pad between each beam and the column, which can improve the assembly efficiency and assembly accuracy of the beam and ensure the assembly accuracy of the two half brackets.

[0015] 3. The present application sets a reference plane at the top of the column segment of each layer of the bracket. When installing the remaining brackets layer by layer from bottom to top, the first segment of one bracket unit and the second segment of another bracket unit are moved closer or farther apart from each other according to the measured distance between the reference plane on the first segment of one bracket unit and the reference plane on the second segment of another bracket unit until the measured distance is within the set range, and then the two column segment tops are kept at the distance by installing an arc beam. This method can eliminate the influence of the horizontal deformation of the bracket unit caused by the gravity of the column on the assembly accuracy, ensure the connection accuracy between the two bracket units of each layer of the bracket, and improve the assembly accuracy of the bracket.

[0016] 4. The present application adjusts the top distance between the first segment of a bracket unit and the second segment of another bracket unit by setting a side-pull fixture. When the remaining brackets are installed layer by layer from bottom to top, after the four column units on each layer of the bracket are installed, the connecting fixture is connected to the tops of the four column segments through the adjusting fixture, and the distance between the column segment and the connecting beam of the connecting fixture is adjusted by turning the pulling bolt and pushing bolt of the adjusting fixture, thereby adjusting the top distance of the two column units connected at both ends of the connecting beam, and at the same time adjusting the relative positions of the tops of the four column segments, thereby adjusting the distance between the tops of the two half brackets on each layer within the set range, ensuring the connection accuracy between the two bracket units on each layer of the bracket, and improving the assembly accuracy of the bracket. The side-pull fixture has the advantages of simple structure and easy operation.

[0017] 5. In the present application, when installing four column segments using the saddle pin hole between the connecting surfaces of two adjacent column segments of each column as the reset reference, the four column segments to be installed are first roughly positioned, and then the horizontal positions of the column segments are accurately adjusted through the side top tooling. In actual operation, the side top tooling is respectively provided on the four sides of the column. The position of a column segment to be installed relative to the installed column segment in the horizontal direction can be adjusted by turning the adjusting bolts in the four side top toolings. The operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The accompanying drawings are background technology drawings of this application; Figure 2The accompanying drawings are background technology drawings of this application; Figure 3 A schematic diagram of the installation of guide rails and racks in a high-precision assembly method for an ultra-high vertical friction stir welding system bracket provided by an embodiment of the present invention; Figure 4 A schematic diagram of a side top tooling in a high-precision assembly method for an ultra-high vertical friction stir welding system bracket provided in an embodiment of the present invention; Figure 5 A schematic diagram of the connection between the side-pull fixture and the four columns on each layer of the bracket in the high-precision assembly method of the ultra-high vertical friction stir welding system bracket provided by an embodiment of the present invention; Figure 6 for Figure 5 A magnified schematic diagram of the middle A area; Figure 7 for Figure 5 A magnified schematic diagram of area B.

[0019] Description of reference numerals: 1. Column; 11. Column segment; 111. Side support plate; 1111. Reference plane; 12. Guide rail mounting strip; 2. Guide rail; 3. Rack; 4. Crossbeam; 5. Arc beam; 6. Locating pin; 7. Side top tooling; 71. Connecting part; 72. Supporting part; 73. Adjusting bolt; 8. Connecting tooling; 81. Connecting beam; 811. Middle section; 812. Measuring section; 9. Fixing bolt; 10. Pull-in bolt; 20. Push-out bolt; 30. Limit bolt. DETAILED DESCRIPTION

[0020] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0022] It will be appreciated that spatial relationship terms such as "under," "beneath," "below," "under," "above," "above," etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as being "above" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0023] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0024] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0025] Reference Figure 1-7 As shown, the embodiment of the present application provides a high-precision assembly method for an ultra-high vertical friction stir welding system bracket, comprising: The guide rail 2 and the rack 3 are installed, including: The column 1 is preassembled in a horizontal state, and the positions of the plurality of column segments 11 of the column 1 are adjusted so that the straightness of the guide rail mounting strip 12 on the column 1 is within a set range. Then, the plurality of column segments 11 of the column 1 are fixed to each other, and a saddle pin hole is punched on the connecting surface of two adjacent column segments 11 of the column 1.

[0026] The guide rail 2 and the rack 3 are installed. After the installation is completed, the plurality of column segments 11 of the column 1 are separated to complete the installation of the guide rail 2 and the rack 3 .

[0027] Bracket assembly, including: The four column segments 11 of the first layer of the support are installed at the designed positions, and the cross beams 4 and the arc beams 5 of the first layer of the support are installed in sequence.

[0028] The remaining brackets are installed layer by layer from bottom to top. When installing each layer of the brackets, first install four column segments 11 using the saddle pin holes between the connecting surfaces of two adjacent column segments 11 of each column 1 as the reset reference, and then install the cross beam 4 and the curved beam 5 in sequence.

[0029] Complete the bracket assembly.

[0030] Reference Figure 3 As shown, when the column 1 is pre-assembled in a horizontal state, the side of the column 1 opposite to the side where the guide rail 2 is set is used as a reference, and the column 1 is placed on the leveling pad with this side facing downward to ensure the horizontal posture of the column 1. The specific support point of the column 1 is set according to the support point provided in the simulation report of the processing deformation of the column 1 to restore the processing state. When the multiple column segments 11 of the column 1 are fixed to each other, it is ensured that there is no gap between the connecting surfaces of two adjacent column segments 11 of the column 1, and the saddle pin holes are punched.

[0031] Reference Figure 3 As shown, the guide rail 2 and the rack 3 are installed, and after the installation is completed, the plurality of column segments 11 of the column 1 are separated, including: Place two columns 1 constituting a half bracket horizontally and at the same height, and make the connection surfaces of the two columns 1 and the crossbeam 4 face each other, adjust the relative angle between the two columns 1 so that the parallelism of the guide rail mounting strips 12 on the two columns 1 is within the set range, and adjust the distance between the two columns 1 so that the horizontal distance between a guide rail mounting strip 12 on one column 1 and a guide rail mounting strip 12 on the other column 1 is within the set range. When adjusting the relative angle and distance between the two columns 1, take the side surfaces of the guide rail mounting strips 12 on the two columns 1 as the reference, measure the distance between the side surfaces of a guide rail mounting strip 12 on one column 1 and the side surfaces of a guide rail mounting strip 12 on the other column 1 by using a measuring rod, and adjust the relative angle and distance between the two columns 1 according to the measurement results to ensure that the parallelism and distance of the guide rail mounting strips 12 on the two columns 1 are within the design range.

[0032] After the relative position between the two columns 1 is adjusted, the guide rail 2 and the rack 3 are installed.

[0033] After the guide rail 2 and the rack 3 are installed, the thickness of the adjustment pad between the crossbeam 4 and the column 1 is adjusted and the crossbeam 4 is installed according to the distance between the connection surface between one column 1 and the crossbeam 4 and the connection surface between the other column 1 and the crossbeam 4, and according to the actual length of the crossbeam 4, and the thickness of the adjustment pad between each crossbeam 4 and the column 1 is recorded. At this point, a standard half bracket in a horizontal state is assembled, and in the subsequent bracket assembly process, the adjustment pad is set and the crossbeam 4 is installed according to the recorded thickness of the adjustment pad between the corresponding crossbeam 4 and the column 1. After completion, the crossbeam 4 is separated from the column 1, and the multiple column segments 11 of each column 1 are separated.

[0034] In the bracket assembly step, each layer of the bracket is installed layer by layer from bottom to top.

[0035] First, install the four column segments 11 of the first layer of the bracket at the designed position, and then install the crossbeam 4 and the arc beam 5 of the first layer of the bracket in sequence. Specifically, when installing the column segments 11, a laser tracker is used to detect the verticality and parallelism of the four column segments 11, and real-time adjustments are made according to the detection results to ensure the installation accuracy of the four column segments 11. After the four column segments 11 are installed, the adjustment pads are set according to the thickness of the adjustment pads between the crossbeam 4 of the first layer of the bracket and the column 1 recorded above, and the crossbeam 4 of the first layer of the bracket is installed. After the crossbeam 4 is installed, the verticality and parallelism of the column segment 11 are rechecked, and the arc beam 5 is installed after passing the inspection to complete the installation of the first layer of the bracket.

[0036] Then install the remaining brackets layer by layer from bottom to top. When installing each layer of the brackets, first install four column segments 11 using the saddle pin holes between the connecting surfaces of two adjacent column segments 11 of each column 1 as the reset reference, and then install the cross beam 4 and the curved beam 5 in sequence.

[0037] Wherein, when four column segments 11 are installed by using the saddle pin hole between the connecting surfaces of two adjacent column segments 11 of each column 1 as the reset reference, the method includes: First, place the column segment 11 to be installed on the installed column segment 11 for rough positioning. Figure 4 As shown, during rough positioning, the corresponding bolt holes on the installed column segment 11 and the column segment 11 to be installed are used in conjunction with the positioning pins 6 to perform rough positioning and guiding, so as to quickly complete the rough positioning of the column segment 11 to be installed.

[0038] Then, the relative position of each column segment 11 to be installed in the horizontal direction with respect to the installed column segment 11 is adjusted by the side top tooling 7 to accurately position the column segment 11 to be installed.

[0039] Reference Figure 4As shown, the side top tooling 7 includes a connecting portion 71, a supporting portion 72 and an adjusting bolt 73. The connecting portion 71 is used to be connected to the side of the column segment 11 to be installed near the bottom, and the supporting portion 72 is connected to the connecting portion 71. When the connecting portion 71 is connected to the column segment 11 to be installed after rough positioning, the supporting portion 72 is located on one side of the installed column segment 11 and the bottom height is lower than the top height of the installed column segment 11. The adjusting screw is threadedly assembled on the supporting portion 72. When the connecting portion 71 is connected to a side of the column segment 11 to be installed, the axis of the adjusting screw is perpendicular to the side of the column segment 11 to be installed, and is suitable for abutting against the side of the installed column segment 11 through the adjusting bolt 73, and the adjusting bolt 73 is screwed to make the column segment 11 to be installed move relative to the installed column segment 11 along the axial direction of the adjusting bolt 73.

[0040] Specifically, in actual operation, a side top tooling 7 is installed on the four sides of each column segment 11 to be installed, so that the four adjusting bolts 73 are abutted against the four sides of the installed column segment 11, and according to the position of the saddle pin holes between the installed column segment 11 and the column segment 11 to be installed, the position of the column segment 11 to be installed is adjusted to align with the saddle pin holes by screwing the four adjusting bolts 73, and the saddle pins are driven in to complete the precise positioning of the column segment 11 to be installed, and then the column segment 11 to be installed is fixed to the installed column segment 11 by bolts, thereby completing the positioning and installation of the four column segments 11 of one layer of the bracket.

[0041] After the four column segments 11 of one layer of the support are fixed, the adjustment pads are set according to the recorded thickness of the adjustment pads between the cross beams 4 of the layer of the support and the columns 1, and the cross beams 4 of the layer of the support are installed.

[0042] Since the height from the second layer to the top layer of the bracket is relatively high, when the second layer to the top layer of the bracket is installed, after the column 1 and the beam 4 are installed, the bracket unit will undergo horizontal deformation due to factors such as the weight of the column 1 and the beam 4, resulting in the top distance between the two bracket units of one layer being too large or too small. Therefore, before installing the curved beam 5, the top distance of the two bracket units needs to be adjusted to within the set range.

[0043] Reference Figure 5-7 As shown, specifically, a reference surface 1111 parallel to the positioning surface of the guide rail 2 is provided on the top of the four column segments 11 of each layer of the bracket, and in the two bracket units of each layer of the bracket, the two column segments 11 in each bracket unit are respectively the first segment and the second segment, wherein the first segment is connected to the arc beam 5. For a standard bracket, the projections of the two parallel reference surfaces 1111 in each layer of the bracket in the direction perpendicular to the reference surface 1111 coincide.

[0044] When installing the remaining brackets layer by layer from bottom to top, before installing the curved beam 5 of each layer of the bracket, that is, after the installation of the cross beam 4 is completed, according to the measured distance between the reference plane 1111 on the first segment of one bracket unit and the reference plane 1111 on the second segment of another bracket unit, the tops of the first segment of one bracket unit and the second segment of another bracket unit are brought closer to or farther away from each other until the measured distance is within the set range, even if the distance between the tops of the two bracket units is within the design range, thereby improving the assembly accuracy of each layer of the bracket.

[0045] Reference Figure 5-7 As shown, specifically, when the tops of the first segment of a bracket unit and the second segment of another bracket unit are moved closer to or farther away from each other by a side-pulling fixture, the side-pulling fixture includes a connecting fixture 8 and two sets of adjusting fixtures. The connecting fixture 8 includes two cross-arranged and connected connecting beams 81. The two sets of adjusting fixtures are respectively used to connect to the two connecting beams 81. The adjusting fixture includes a fixing component and an adjusting component. The fixing component and the adjusting component are respectively used to connect to both ends of the connecting beam 81.

[0046] Among them, it is suitable to connect the first segment of a bracket unit and the second segment of another bracket unit through a connecting beam 81, and the connecting beam 81 is perpendicular to the reference surface 1111 on the first segment, and one end of the connecting beam 81 is fixed to the first segment through a fixing component, and the other end is connected to the second segment through an adjusting component, and the second segment and the connecting beam 81 are moved closer to or farther away from each other through the adjusting component. At the same time, another first segment and a second segment are connected through another connecting beam 81, and the connecting beam 81 is perpendicular to the reference surface 1111 on the second segment, and one end of the connecting beam 81 is fixed to the second segment through a fixing component, and the other end is connected to the first segment through an adjusting component, and the first segment and the connecting beam 81 are moved closer to or farther away from each other through the adjusting component.

[0047] Reference Figure 5-7 As shown, when designing the connecting tool 8, the design is performed based on the relative positions and angles between the four reference surfaces 1111 on the four column segments 11 of the upper layer of the standard bracket, so that the relative angle and position between one end face of a connecting beam 81 and one end face of another connecting beam 81 are consistent with the relative angle and position between the two reference surfaces 1111 on a bracket unit, and the fixing component is used to be fixed to the end of the connecting beam 81, and when the two end faces are in contact with the two reference surfaces 1111 on a bracket unit, the other two end faces of the two connecting beams 81 are parallel to the two reference surfaces 1111 on another bracket unit in a one-to-one correspondence and the spacing is a set value.

[0048] Reference Figure 5As shown, in order to improve the structural strength of the connecting beam 81, the connecting beam 81 includes a middle section 811 and measuring sections 812 at both ends. The middle sections 811 of the two connecting beams 81 are connected to each other, and in the length direction of the connecting beam 81, the thickness of the middle section 811 in a direction perpendicular to the plane formed by the two connecting beams 81 gradually increases from both ends to the middle.

[0049] Reference Figure 5-7 As shown, further, when the connecting beam 81 is fixed to the side-pull support plate 111 on the corresponding column segment 11 by the fixing bolt 9, the end face of the connecting beam 81 is made to fit with the reference surface 1111 on the side-pull support plate 111, and the distance between the end face of the other end of the connecting beam 81 and the reference surface 1111 on the side-pull support plate 111 connected to the other end is measured, and the distance between the reference surfaces 1111 on the two side-pull support plates 111 connected to the two ends of a connecting beam 81 is calculated according to the length of the connecting beam 81. In actual operation, the end faces of one end of the two connecting beams 81 connected to the fixing assembly are respectively made to fit with the two reference surfaces 1111 on a bracket unit, and the connecting beam 81 is fixed to the corresponding column segment 11 by the fixing assembly. At the same time, the other end of the connecting beam 81 is connected to the corresponding column segment 11 on another bracket unit by the adjusting assembly, and according to the measured distance between the end of the connecting beam 81 and the reference surface 1111 on the column segment 11, the distance is adjusted to within the set range by the adjusting assembly. The connecting tool 8 can be set as a standard part, that is, the length of the connecting beam 81 is determined. When measuring the actual distance between the reference plane 1111 on the first segment of one bracket unit and the reference plane 1111 on the second segment of another bracket unit, it is only necessary to measure the distance between the end face of one end where the connecting beam 81 is connected to the adjusting component and the reference plane 1111 on the column segment 11 connected to the adjusting component, thereby reducing the measurement difficulty and improving the accuracy of the results.

[0050] Reference Figure 5-7 As shown, specifically, a side-pull support plate 111 is provided on the top of the four column segments 11 of each layer of the bracket, and a reference surface 1111 is provided on the side-pull support plate 111. The side-pull support plate 111 provides support for the connection between the connecting beam 81 and the column segment 11. The fixing assembly includes a fixing bolt 9, which is suitable for fixing the connecting beam 81 with the side-pull support plate 111 on the corresponding column segment 11 through the fixing bolt 9. The adjustment assembly includes a pull-in bolt 10 and a push-out bolt 20, which is suitable for connecting the connecting beam 81 with the side-pull support plate 111 on the corresponding column segment 11 through the pull-in bolt 10, and the pull-in bolt 10 passes through the side-pull support plate 111 and is threadedly connected to the connecting beam 81, and the push-out bolt 20 is threadedly connected to the side-pull support plate 111 and one end is against the connecting beam 81, and the axes of the pull-in bolt 10 and the push-out bolt 20 are perpendicular to the reference surface 1111 on the side-pull support plate 111.

[0051] Reference Figure 5-7As shown, threaded holes for assembling fixing bolts 9 and pulling bolts 10 are provided on the end faces of both ends of the connecting beam 81, and threaded holes for threaded assembly of pushing bolts 20 are provided on the corresponding side-pull support plate 111. In actual operation, the end face of the connecting beam 81 connected to the fixing bolt 9 is made to fit with the reference surface 1111 on the corresponding side-pull support plate 111, and the fixing bolt 9 is passed through the side-pull support plate 111 to connect with the connecting beam 81, so that the connecting beam 81 is fixed to the side-pull support plate 111, and at the same time, the other end of the connecting beam 81 is connected to the corresponding side-pull support plate 111 by the pulling bolt 10, and the pushing bolt 20 is installed on the side-pull support plate 111. After the connecting fixture 8 is connected to the four column segments 11, according to the distance between the end face of the connecting beam 81 connected to the approaching bolt 10 and the reference surface 1111 on the side support plate 111 connected to the approaching bolt 10, the top of the column segment 11 where the reference surface 1111 is located is moved closer to or away from the connecting beam 81 by turning the approaching bolt 10 and the pushing bolt 20. During the actual installation, it is necessary to ensure that the deviation of the distance L1 between the end face of one connecting beam 81 connected to the approaching bolt 10 and the reference surface 1111 on the side support plate 111 connected to the approaching bolt 10, and the distance L2 between the end face of another connecting beam 81 connected to the approaching bolt 10 and the reference surface 1111 on the side support plate 111 connected to the approaching bolt 10 are within the design range, and the deviation between L1 and L2 and the corresponding design values ​​are within the design range.

[0052] Reference Figure 5-7 As shown, further, the side-pulling tooling also includes four groups of limit assemblies, which are respectively used to connect to the tops of the four column segments 11. The limit assemblies include two groups of limit bolts 30. After the connecting tooling 8 is connected to the four column segments 11, the limit assemblies are installed on the tops of the column segments 11, so that the two groups of limit bolts 30 are respectively located on both sides of the connecting beam 81, and the two limit bolts 30 in each group are abutted against the side walls of the connecting beam 81, so as to limit the movement of the connecting beam 81 relative to the column segment 11 in a direction perpendicular to its length through the limit bolts 30, thereby reducing the structural deformation when the distance between the connecting beam 81 and the column segment 11 is adjusted by the adjusting assembly.

[0053] Furthermore, after the first layer of the bracket is installed, the two connecting beams 81 of the connecting tooling 8 are connected to a bracket unit of the first layer of the bracket through a fixed structure, and the corresponding L1 and L2 values ​​are measured and recorded. When the bracket is subsequently installed from the second layer to the highest layer, it is also necessary to ensure that the deviation between the L1 value measured on each layer and the L1 value measured on the first layer is within the set range, and that the deviation between the L2 value measured on each layer and the L2 value measured on the first layer is within the set range.

[0054] After adjusting the top distance of two bracket units of one layer of the bracket to within a set range by using the side-pull fixture, the arc beam 5 is installed. After the arc beam 5 is installed, the side-pull fixture is removed.

[0055] Complete the installation of each layer of the bracket in sequence until the assembly of the bracket is completed, completing the high-precision assembly of the bracket.

[0056] In the present embodiment, the dimensions, relative positions, angles and other parameters of the side surfaces on each column segment 11 opposite to the side surfaces on which the guide rails 2 are arranged, the connection surfaces between the column 1 and the crossbeam 4, the guide rail mounting strip 12 and the side surfaces and positioning surfaces thereon, the rack 3 mounting strip, the side pull support plate 111 and the reference surface 1111 thereon, etc. are all standard parameters, which are determined when the column segment 11 is processed and manufactured, that is, each column segment 11 is a standard part.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision assembly method for an ultra-high vertical friction stir welding system bracket, characterized in that: include: The guide rail (2) and rack (3) are installed, including: The column (1) is pre-assembled in a horizontal state, and the positions of the plurality of column segments (11) of the column (1) are adjusted so that the straightness of the guide rail mounting strip (12) on the column (1) is within a set range, and then the plurality of column segments (11) of the column (1) are fixed to each other, and the connecting surfaces of two adjacent column segments (11) of the column (1) are punched with a saddle pin hole; Install the guide rail (2) and the rack (3), and after the installation is completed, separate the plurality of column segments (11) of the column (1) to complete the installation of the guide rail (2) and the rack (3); Bracket assembly, including: Install four column segments (11) of the first layer of the support at the designed position, and install the cross beam (4) and the curved beam (5) of the first layer of the support in sequence; The remaining brackets are installed layer by layer from bottom to top. When installing each layer of the brackets, four column segments (11) are first installed using the saddle pin holes between the connection surfaces of two adjacent column segments (11) of each column (1) as a reset reference, and then the cross beam (4) and the arc beam (5) are installed in sequence; Complete the bracket assembly.

2. The high-precision assembly method of the ultra-high vertical friction stir welding system bracket according to claim 1 is characterized in that: The installation guide rail (2) and the rack (3) are installed to separate the plurality of column segments (11) of the column (1) after the installation is completed, and include: Two uprights (1) constituting a half bracket are placed horizontally and at the same height, and the connection surfaces of the two uprights (1) and the crossbeam (4) are made to face each other, and the relative angle between the two uprights (1) is adjusted so that the parallelism of the guide rail mounting strips (12) on the two uprights (1) is within a set range, and the distance between the two uprights (1) is adjusted so that the horizontal distance between a guide rail mounting strip (12) on one upright (1) and a guide rail mounting strip (12) on the other upright (1) is within a set range; Install the guide rail (2) and the rack (3); According to the distance between the connection surface between one column (1) and the cross beam (4) and the connection surface between another column (1) and the cross beam (4), the thickness of the adjustment pad between the cross beam (4) and the column (1) is adjusted and the cross beam (4) is installed, and the thickness of the adjustment pad between each cross beam (4) and the column (1) is recorded. After completion, the cross beam (4) is separated from the column (1), and the plurality of column segments (11) of each column (1) are separated; When the bracket is assembled, the adjustment pad is set according to the recorded thickness of the adjustment pad between the corresponding cross beam (4) and the column (1) and the cross beam (4) is installed.

3. The high-precision assembly method of the ultra-high vertical friction stir welding system bracket according to claim 1 is characterized in that: A reference surface (1111) parallel to the positioning surface of the guide rail (2) is arranged at the top of the four column segments (11) of each layer of the bracket, and in the two bracket units of each layer of the bracket, the two column segments (11) in each bracket unit are respectively a first segment and a second segment, wherein the first segment is connected to the arc beam (5); When the remaining brackets are installed layer by layer from bottom to top, before installing the arc-shaped beam (5) of each bracket layer, based on the measured distance between the reference surface (1111) on the first segment of one bracket unit and the reference surface (1111) on the second segment of another bracket unit, the tops of the first segment of one bracket unit and the second segment of another bracket unit are moved closer to or farther from each other until the measured distance is within a set range.

4. The high-precision assembly method of the ultra-high vertical friction stir welding system bracket according to claim 3 is characterized in that: The step of bringing the top of the first segment of one bracket unit and the top of the second segment of another bracket unit closer to or farther from each other is performed by a side-pull tool, and the side-pull tool comprises: A connecting tool (8), comprising two cross-arranged and connected connecting beams (81); Two sets of adjustment tools, respectively used to be connected to the two connecting beams (81), the adjustment tools comprising a fixing component and an adjustment component, the fixing component and the adjustment component respectively used to be connected to two ends of the connecting beam (81); Wherein, it is suitable to connect the first segment of a bracket unit and the second segment of another bracket unit through a connecting beam (81), and the connecting beam (81) is perpendicular to the reference surface (1111) on the first segment, and one end of the connecting beam (81) is fixed to the first segment through the fixing component, and the other end is connected to the second segment through the adjusting component, and the second segment and the connecting beam (81) are moved closer to or farther away from each other through the adjusting component; At the same time, another first segment and a second segment are connected by another connecting beam (81), and the connecting beam (81) is perpendicular to the reference surface (1111) on the second segment, and one end of the connecting beam (81) is fixed to the second segment by the fixing assembly, and the other end is connected to the first segment by the adjusting assembly, and the first segment and the connecting beam (81) are moved closer to or farther away from each other by the adjusting assembly.

5. The high-precision assembly method of the ultra-high vertical friction stir welding system bracket according to claim 3 is characterized in that: A side-pull support plate (111) is arranged on the top of the four column segments (11) of each layer of the bracket, and the reference surface (1111) is arranged on the side-pull support plate (111); The fixing assembly comprises fixing bolts (9), which are suitable for fixing the connecting beam (81) and the side pull support plate (111) on the corresponding column segment (11) through the fixing bolts (9); The adjustment assembly includes a pulling bolt (10) and a pushing bolt (20), which are suitable for connecting the connecting beam (81) and the side pulling support plate (111) on the corresponding column segment (11) through the pulling bolt (10), and the pulling bolt (10) passes through the side pulling support plate (111) and is threadedly connected to the connecting beam (81), and the pushing bolt (20) is threadedly connected to the side pulling support plate (111) and one end is abutted against the connecting beam (81), and the axes of the pulling bolt (10) and the pushing bolt (20) are perpendicular to the reference plane (1111) on the side pulling support plate (111).

6. The high-precision assembly method of the ultra-high vertical friction stir welding system bracket according to claim 5, characterized in that: When the connecting beam (81) is fixed to the side-pull support plate (111) on the corresponding column segment (11) by the fixing bolts (9), the end face of the connecting beam (81) is made to fit with the reference surface (1111) on the side-pull support plate (111), and the distance between the end face of the other end of the connecting beam (81) and the reference surface (1111) on the side-pull support plate (111) connected to the other end is measured, and the distance between the reference surfaces (1111) on the two side-pull support plates (111) connected at both ends of a connecting beam (81) is calculated based on the length of the connecting beam (81).

7. The high-precision assembly method of the ultra-high vertical friction stir welding system bracket according to claim 4 is characterized in that: The connecting beam (81) comprises a middle section (811) and measuring sections (812) at both ends. The middle sections (811) of the two connecting beams (81) are connected to each other, and in the length direction of the connecting beam (81), the thickness of the middle section (811) in a direction perpendicular to a plane formed by the two connecting beams (81) gradually increases from both ends to the middle.

8. The high-precision assembly method of the ultra-high vertical friction stir welding system bracket according to claim 1, characterized in that: The method of installing four column segments (11) by using the saddle pin hole between the connecting surfaces of two adjacent column segments (11) of each column (1) as a reset reference comprises: Placing the column segment (11) to be installed on the installed column segment (11) for rough positioning; The relative position of each column segment (11) to be installed and the installed column segment (11) in the horizontal direction is adjusted by a side top tooling (7), wherein the side top tooling (7) comprises: A connecting portion (71) used for connecting to the side surface of the column segment (11) to be installed near the bottom; a supporting portion (72) connected to the connecting portion (71); when the connecting portion (71) is connected to the column segment (11) to be installed after rough positioning, the supporting portion (72) is located on one side of the installed column segment (11) and the bottom height is lower than the top height of the installed column segment (11); An adjusting bolt (73) is threadedly assembled on the supporting portion (72). When the connecting portion (71) is connected to a side surface of the column segment (11) to be installed, the axis of the adjusting screw is perpendicular to the side surface of the column segment (11) to be installed. The adjusting bolt (73) is adapted to abut against the side surface of the installed column segment (11), and the adjusting bolt (73) is screwed to move the column segment (11) to be installed along the axial direction of the adjusting bolt (73) relative to the installed column segment (11).

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