Rotating frame unit, rotating frame, processing tooling of rotating frame unit and processing method

Abstract

The present invention discloses a revolving frame unit, including an outer ring beam, a connecting tube beam and an inner ring beam, an outer flange plate is embedded and fixed between the upper panel and the lower panel of the outer ring beam, an inner flange plate is embedded and fixed between the upper panel and the lower panel of the inner ring beam, and the upper and lower ends of the outer flange plate, the inner flange plate, the bearing seat and the rib plate are all arranged without gap between the upper panel and the lower panel. The present invention also provides a revolving frame, a processing tool for a revolving frame unit and a processing method for processing the revolving frame unit using the above-mentioned processing tool. The revolving frame unit and the revolving frame of the present invention can prevent weld shrinkage to ensure the high consistency of the upper and lower panels, and effectively avoid welding shrinkage. The revolving frame unit processing tool of the present invention facilitates the processing of the revolving frame unit, can greatly improve the processing quality of the revolving frame unit, and avoid the use of large equipment.

Description

Technical Field

[0001] The invention belongs to the field of sintering auxiliary equipment, and in particular relates to a rotary motion component of a ring cooler and a processing tool and a processing method thereof. Background Art

[0002] The revolving frame and trolley are the revolving parts of the ring cooler, which revolve in the horizontal plane and are used for cooling and unloading high-temperature sintered ore. The revolving frame is a fan-shaped structure, usually with large dimensions, and is welded into a rigid body by the outer ring beam, connecting pipe beam and inner ring beam (such as Figure 1 As shown, several identical revolving frames can be combined into a complete circle. The inner ring beam and the outer ring beam of the revolving frame are arranged in pairs at a certain angle to form several groups of bearing seats for mounting the trolley shaft, thereby supporting the trolley (such as Figure 2 There are holes on the upper and lower surfaces of the slewing frame for mounting components such as trolley guardrails, support rails, side rails and drive units (such as Figure 1 , Figure 2 In particular, both ends of the slewing frame are connected with flanges with holes (as shown in Figure 1 , Figure 2 As shown in the figure, the slewing frame forms a complete circle by connecting and fastening with bolts through the holes on the flange.

[0003] The revolving frame is a fan-shaped structural unit, which requires the fan-shaped angle and structural dimensions of each unit to be accurate. At the same time, the design uses the mid-rotation diameter R0 as the reference to determine the rotation radius of the trolley guardrail, support rail, side rail and drive unit (determined by drilling jig during manufacturing), so that the revolving frame can be smoothly installed into a full circle and the position of each accessory can be accurately installed. Multiple inner ring beam flanges and outer ring beam flanges are connected shoulder to shoulder to form a full circle. The holes on the flanges must be kept the same size in the height direction and radial direction to avoid incorrect hole positions causing the revolving frame to be unable to be installed or installed misplaced, which in turn affects the accuracy of the accessory position and the operation of the entire machine. The distance between the upper and lower panels of the revolving frame should be basically consistent. The panel serves as the installation reference surface for the trolley guardrail, support rail, side rail and drive unit. The reference surface itself is accurate to ensure the accurate positioning of the parts to be installed on it; in addition, the bottom surface of the lower panel is in contact with the lower sealing rubber. In order to ensure the sealing effect, the area where the bottom surface of the lower panel contacts the lower sealing rubber must be flat and smooth.

[0004] Through the above discussion, we can see that the design technical points of the slewing frame are as follows: First, ensure the accuracy of the fan-shaped angle and structural dimensions of each unit; second, ensure the accuracy of the installation position of the trolley guardrail, support rail, side rail and drive unit, that is, the accuracy of each installation hole; third, ensure the position accuracy of the inner ring beam flange and the outer ring beam flange hole group; fourth, ensure the consistency of the distance between the upper and lower panels of the slewing frame; fifth, ensure that the area where the bottom surface of the lower panel contacts the lower sealing rubber is flat and smooth; sixth, ensure the coaxiality of the inner and outer bearing seats of the slewing frame, the angle between the center lines of the inner and outer bearing seats, and the dimensions of the two ends of the inner and outer bearing seats.

[0005] The revolving frame of the existing technical solution is to weld the inner and outer ring beams first, then process the upper and lower surfaces to ensure the height consistency, then weld the inner and outer ring beams and the connecting pipe beams into a whole, then process the inner and outer ring flanges as a whole, then bore the inner hole of the bearing seat, and finally drill the holes on the panel. The fan angle and structural dimensions of the plane projection of each fan-shaped structural unit of the revolving frame are first guaranteed by marking the contour line, first mark the contour line, and use the tool to calibrate the contour line milling processing; the second is to use an integral boring, milling and drilling large-scale tooling for calibration processing. The first method mentioned above relies entirely on personal feel and experience to ensure the position accuracy of the revolving frame unit, with poor precision control, low efficiency and high processing costs; the second method requires processing of both the revolving frame and the tooling, with a long manufacturing cycle and high cost. In addition, there is an earlier technical solution that does not weld the inner and outer ring beam flanges first, and after all the revolving frame units are leveled and placed into a full circle, the inner and outer ring beam flanges are connected into groups and inserted between the revolving frame units, and then welded as a whole, and finally the holes on the panel are drilled in a full circle. That is, the earlier technical solutions more accurately guaranteed the overall diameter of the slewing circle and the accessory installation holes, but only roughly guaranteed the external dimensions and angles of a single slewing frame. In addition, this technical solution requires a large pre-installation site. The manufacturing workshop usually does not have enough space to accommodate the entire slewing frame. It is necessary to work outdoors and to be equipped with large-scale operating equipment such as cranes. Safety, progress, and cost control are more difficult.

[0006] In addition, in the above two processing schemes for the revolving frame, the size of the mounting holes of the trolley guardrail, support rail, side rail and drive unit were generally determined by marking, and the processing accuracy was not high. Later, a large-scale integral boring, milling and drilling tool was developed for the holes on the upper panel, but the tool was too large, making it inconvenient to use and inefficient. The coaxiality of the inner and outer bearing seats of the revolving frame, the angle between the center lines of the inner and outer bearing seats, and the accuracy of the dimensions of the inner and outer bearing seats are all ensured by processing the whole on large equipment after the revolving frame unit is welded. The precision is high, but the manufacturing cycle is long and the cost is high. Summary of the invention

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies and defects mentioned in the above background technology, and to provide a revolving frame unit, a revolving frame, a processing tool for the revolving frame unit, and a processing method with low cost, high processing precision, and short processing cycle. In order to solve the above technical problems, the technical solution proposed by the present invention is:

[0008] A revolving frame unit comprises an outer ring beam, a connecting tube beam and an inner ring beam, wherein the outer ring beam and the inner ring beam are fixedly connected into a whole by the connecting tube beam, an outer flange plate and an inner flange plate are fixedly arranged at both ends of the outer ring beam and the inner ring beam respectively, a bearing seat and a rib plate are fixedly arranged between the upper and lower panels of the outer ring beam and the inner ring beam, the outer flange plate is embedded and fixedly connected (such as welded) between the upper and lower panels of the outer ring beam, the inner flange plate is embedded and fixedly connected (such as welded) between the upper and lower panels of the inner ring beam, and the upper and lower ends of the outer flange plate, the inner flange plate, the bearing seat and the rib plate are all gaplessly abutted (gaplessly welded) between the upper and lower panels.

[0009] In the present invention, the upper and lower height lines of the bearing seat, rib plate, outer flange plate and inner flange plate are respectively welded tightly against the upper and lower panels, and fillet welding can be used to eliminate the welding gap (i.e., gapless welding) to avoid changes in the distance between the upper and lower panels caused by weld shrinkage. At the same time, the upper and lower panels are cut from the same batch of plates to reduce the impact of changes in plate thickness on the height of the revolving frame unit.

[0010] In the above-mentioned revolving frame unit, preferably, the outer flange plate and the inner flange plate are both provided with bolt holes, the distance between two adjacent columns or rows of bolt holes on the outer flange plate remains the same, and the distance between two adjacent columns or rows of bolt holes on the inner flange plate remains the same; the distance between a column of bolt holes on the outer flange plate closest to the inner ring beam and a column of bolt holes on the inner flange plate closest to the outer ring beam is an integer multiple of the distance between two adjacent columns of bolt holes on the outer flange plate. In the present invention, the bolt hole positions on the inner and outer ring flange plates are standardized and serialized, which is suitable for the use of general tooling, saving the cost of repeated tooling production, reducing the labor intensity of workers, making production quality easy to control, and accelerating production progress.

[0011] As a general technical concept, the present invention also provides a revolving frame, which is composed of a plurality of the above-mentioned revolving frame units, and adjacent outer flange plates and adjacent inner flange plates between adjacent revolving frame units are fixedly connected by bolts.

[0012] In the above-mentioned revolving frame, preferably, the joints of adjacent outer flange plates and adjacent inner flange plates are provided with saddle pin holes, and the saddle pin holes are provided with saddle pin shafts. Only bolts are used to connect and tighten the inner and outer flange plates, which cannot ensure that the two adjacent revolving frame units are not misaligned up and down, because the bolt diameter here is smaller than the mounting hole diameter. When the bolt may be loose and cause insufficient clamping force, the two adjacent revolving frame units may be dislocated up and down due to the effect of gravity. The present invention is positioned by saddle pin shafts. Since the outer diameter of the saddle pin shaft is the same as the inner diameter of the saddle pin hole, the saddle pin shaft and the saddle pin hole are tightly matched without gaps. Even if the bolt is slightly loose and the clamping force is insufficient, as long as the revolving frame unit is not completely disengaged, the two adjacent revolving frame units cannot produce relative movement due to the positioning of the saddle pin shaft. If all revolving frame units are not misaligned, the bottom surface of the entire revolving frame can be kept flat.

[0013] In the present invention, the guarantee measure for the flatness and smoothness of the bottom surface of the lower panel is to control the deformation of the rotating frame unit before welding and use a polishing wheel to remove the rust on the steel surface after welding, so as to avoid the expensive processing cost and low efficiency caused by using large-scale equipment to process the bottom surface; the guarantee measure for the flatness of the bottom surface of the entire circle of the rotating frame and the absence of misalignment of the joints is to level the entire circle with a level during on-site installation, connect the fastening flanges with bolts, then drill a saddle pin hole at the joint, and insert the saddle pin shaft.

[0014] As a general technical concept, the present invention also provides a processing tool for a revolving frame unit, comprising:

[0015] Base, used to support the slewing frame unit during the machining process;

[0016] The flange fixing and positioning tool is used for positioning when the outer ring beam, the connecting pipe beam and the inner ring beam are fixed, and when the outer flange plate and the inner flange plate are fixed to the upper panel and the lower panel respectively;

[0017] The bearing seat fixing and positioning tool is used to ensure the coaxiality of the inner and outer bearing seats when the inner and outer bearing seats are fixed to the inner ring beam and the outer ring beam respectively;

[0018] A drilling die is provided with holes for determining the positions of the holes on the upper and lower panels of the outer ring beam and the inner ring beam.

[0019] In the above processing tooling, preferably, the flange fixing and positioning tooling is arranged in pairs, and the flange fixing and positioning tooling includes an outer support, a connecting beam and an inner support, and the outer support and the inner support are connected into a whole through the connecting beam; the outer support and the inner support are mainly formed by fixing a top plate, a bottom plate and a vertical plate, and the vertical plate is arranged at the same side end of the top plate and the bottom plate and is perpendicular to the top plate and the bottom plate, and the vertical plate of the outer support is provided with a plurality of outer matching holes corresponding to the positions of the plurality of bolt holes on the outer flange plate, and the vertical plate of the inner support is provided with a plurality of inner matching holes corresponding to the positions of the plurality of bolt holes on the inner flange plate. In the present invention, the outer support and the inner support also include ribs, which are vertically arranged between the top plate, the bottom plate and the vertical plate, and the connecting beam is connected to the ribs on both sides of the outer support and the inner support to realize the connection between the outer support, the inner support and the connecting beam.

[0020] In the above-mentioned processing tooling, preferably, two upper and lower rows of outer matching holes are provided on the vertical plate of the outer support, and the height positions of the upper and lower rows of the outer matching holes are respectively consistent with the height positions of the topmost and bottommost bolt holes on the outer flange plate, the number of the outer matching holes in each row is greater than the number of bolt holes in each row on the outer flange plate, and the lateral distance between adjacent outer matching holes is the same as the distance between two adjacent columns of bolt holes on the outer flange plate; two upper and lower rows of inner matching holes are provided on the vertical plate of the inner support, and the height positions of the upper and lower rows of the inner matching holes are respectively consistent with the height positions of the topmost and bottommost bolt holes on the inner flange plate, and the number of the inner matching holes in each row is greater than the number of bolt holes in each row on the inner flange plate.

[0021] In the above-mentioned processing tooling, preferably, the length of the connecting beam is controlled so that the distance between the inner matching holes matching the row of bolt holes on the inner flange plate closest to the outer ring beam and the row of outer matching holes on the vertical plate of the outer support closest to the inner support is an integer multiple of the distance between two adjacent rows of bolt holes on the outer flange plate.

[0022] In the above-mentioned processing tooling, preferably, panel avoidance grooves are provided on the upper and lower sides of the vertical plate. The upper and lower panels may be too long due to insufficient precision when cut by CNC, which will interfere with the installation of the inner and outer flange plates. The problem of interference from the above-mentioned overlong panels can be well solved by providing panel avoidance grooves. After the inner and outer ring flange plates are correctly positioned and welded firmly, the overlong part of the panel is removed to ensure the accuracy of the overall angle and structural dimensions of the revolving frame unit. The above-mentioned panel avoidance groove can be obtained by the vertical plate being concave, the top plate being concave, or the bottom plate being concave.

[0023] In the above-mentioned processing tooling, preferably, the bearing seat includes a square wall body and a square bottom arranged on the bottom surface of the square wall body, the square wall body is provided with a circular groove, and the square bottom is provided with a circular hole with a radius smaller than the radius of the circular groove; the bearing seat fixing and positioning tooling includes a shaft body and a pair of rings respectively matched with the inner and outer bearing seats, the outer diameter of the shaft body is smaller than the inner diameter of the circular hole, the ring includes a first circular ring, the inner hole of the first circular ring matches the outer diameter of the shaft body, and the outer diameter of the first circular ring matches the inner diameter of the circular groove.

[0024] In the above-mentioned processing tooling, preferably, the ring also includes a second ring with a radius larger than that of the first ring, the first ring and the second ring are concentric, have the same inner diameter and are fixedly connected to each other; a plurality of screw holes are provided on the side of the square wall body away from the square bottom, and a plurality of through holes are provided at the outer edge of the second ring which match the screw holes so that the second ring and the square wall body can be fixedly connected by bolts.

[0025] In the present invention, the inner and outer circles of the first and second rings of the collar are precision machined, the inner and outer bearing seats are also precision machined, the inner ring of the first ring matches the outer diameter of the shaft, the outer circumference of the first ring matches the circular groove of the bearing seat, and the coaxiality of the inner and outer bearing seats can be achieved by fixing the second ring to the bearing seat. The reason for setting the collar instead of directly sleeve the bearing seat on the shaft body for positioning is that the bearing seat has been pre-fixed on the inner and outer ring beams in advance. If the inner diameter of the circular hole of the bearing seat is matched with the shaft body, the shaft body can only pass through one side of the inner ring beam or the outer ring beam, and it is difficult for the shaft body to pass through the bearing seat.

[0026] In the above-mentioned processing tooling, preferably, the base includes a first platform and a second platform, the first platform and the second platform are fixedly connected by connecting members, the connecting members are distributed at intervals, the first platform and the second platform both include a bottom steel section and a top steel plate fixed to each other, the height of the bottom steel section is 40-50cm, and the length of the connecting member is 2-3m.

[0027] In the above processing tooling, preferably, the drilling mold includes a drilling mold for the lower panel of the outer ring beam, a drilling mold for the lower panel of the inner ring beam, a drilling mold for the upper panel of the outer ring beam, and a drilling mold for the upper panel of the inner ring beam, and the arc length of the drilling mold is 1 / n of the arc length of the outer ring beam or the inner ring beam, wherein n is 1-4. More preferably, n is 1-2.

[0028] As a general technical concept, the present invention also provides a method for processing a revolving frame unit using the above-mentioned processing tooling, comprising the following steps:

[0029] S1: Cutting of connecting tube beam, upper panel, lower panel and rib plate, cutting, milling and drilling of outer flange plate and inner flange plate, finishing of inner and outer bearing seats, ensuring the height of rib plate, outer flange plate, inner flange plate and inner and outer bearing seats are consistent;

[0030] S2: The upper panel, the lower panel and the stiffener are fixedly connected to form an outer ring beam and an inner ring beam;

[0031] S3: Draw the inspection essentials diagram of the slewing frame unit on the base to ensure that the angular dimensions, linear dimensions and form and position tolerances meet the requirements, and then symmetrically fix the flange fixing and positioning tooling on the base;

[0032] S4: Place the inner ring beam and the outer ring beam between the flange fixing and positioning fixtures and connect them with a connecting pipe beam;

[0033] S5: Then, the inner and outer bearing seats are respectively installed between the upper and lower panels of the inner ring beam and between the upper and lower panels of the outer ring beam, the fixing positions of the inner and outer bearing seats are determined, and the bearing seat fixing and positioning tooling is placed to ensure the coaxiality of the inner and outer bearing seats, and then the inner and outer bearing seats are respectively fixed to the inner and outer ring beams;

[0034] S6: using the flange fixing positioning tool to position and fix the inner flange plate and the outer flange plate, and then fixing the inner flange plate and the outer flange plate to the inner ring beam and the outer ring beam respectively;

[0035] S7: Drill holes on the upper and lower panels using a drilling template to complete the processing.

[0036] The revolving frame unit and the revolving frame of the present invention are designed to ensure the height dimensions of the inner and outer ring beams of the revolving frame before welding, and the contact surface between the lower panel and the sealing rubber is polished to be smooth instead of the milling surface design, thereby avoiding milling surface processing after welding to save costs, improve efficiency, and improve quality; the flange is fixed to the positioning tool to position, and the fan angle and structural dimensions of the revolving frame unit are ensured during riveting and welding; the hole positions of the inner and outer flanges are optimized to adapt to the universal welding positioning tool, suitable for the use of universal tooling, reduce repeated tooling production, and make production quality easy to control, speed up the progress, and save costs; by optimizing The structure has small weld shrinkage and overall deformation, which effectively avoids welding shrinkage and makes it possible to avoid post-weld processing, greatly reducing costs and increasing efficiency. By processing sub-level components before welding, they can be dispersed to a large number of small equipment, reducing the pressure of overall post-weld processing relying on large equipment, which is conducive to shortening the production cycle and improving quality. By controlling the holes on the upper and lower panels, the design concept of die drilling positioning is adopted (non-full circle marking and drilling), controlling the coaxiality of the inner and outer bearing seats, adopting matching tooling processing, using inspection drawings, center lines, feature point markings, and Leica instruments to detect angles and sizes, quality is guaranteed from all aspects.

[0037] The processing tooling and processing method of the rotary frame unit of the present invention can avoid the use of large-scale equipment for overall processing after the rotary frame unit is welded, greatly saving processing costs, improving production efficiency, and ensuring quality; the spacing between the two platforms of the base is adjustable, and the height is moderate, which can reduce labor intensity and facilitate construction; the bearing seat fixing positioning tooling is used to ensure the coaxiality and two-end dimensions of the inner and outer bearing seats during welding; the flange fixing positioning tooling can quickly and conveniently realize the welding positioning of the inner and outer flange plates, which is conducive to the positioning of the outer ring beam, the connecting pipe beam and the inner ring beam when they are fixed, and the flange fixing positioning tooling has a simple principle for adjusting the hole position, convenient processing, and wide adaptability; the holes on the upper and lower panels are processed by drilling molds to ensure the accuracy of drilling the installation holes of the trolley guardrail, support rail, side rail and drive unit. Overall, with the detection diagram, center line, and feature point identification, the processing tooling of the present invention has the advantages of quick combination, simple use, convenient adjustment and detection, can improve the fatigue caused by the posture of bowing and bending during construction, and effectively ensure the continuous operation of workers.

[0038] Since a large number of revolving frame units are included in a whole circle of the revolving frame, the impact of the cost reduction, work efficiency improvement and precision assurance of the revolving frame units on the whole circle is multiplied. The present invention serializes, modularizes and partially standardizes the revolving frame units and supporting processing tooling, optimizes the design and process measures, so that the revolving frame units do not rely on large-scale mechanical processing and have the ability to ensure dimensional accuracy, and the supporting processing tooling has the characteristics of versatility and adjustability. In practice, the above-mentioned scheme of the present invention has been adopted and promoted for use, which has proved to have excellent performance in cost reduction, efficiency improvement and quality assurance, and solved the problem of long production cycle and high cost.

[0039] Compared with the prior art, the advantages of the present invention are:

[0040] 1. In the revolving frame unit and the revolving frame of the present invention, the inner and outer ring flange plates are changed to embedded fixed connections to prevent the circumferential shrinkage of the weld. The inner and outer flange plates, the bearing seats, the rib plates and the upper and lower panels are arranged without gaps between the upper and lower panels to prevent the weld from shrinking and ensure the high consistency of the upper and lower panels. After the overall structure is optimized, the weld shrinkage and overall deformation are small, which effectively avoids welding shrinkage and makes it possible to avoid post-weld processing. There is no need to use large-scale equipment for processing after welding, which saves processing costs, shortens the processing cycle, and greatly reduces costs and increases efficiency.

[0041] 2. The processing tooling of the revolving frame unit of the present invention includes a base, a flange fixing positioning tooling, a bearing seat fixing positioning tooling and a drilling mold. The base is supported, and the flange fixing positioning tooling is used to position the outer ring beam, the connecting pipe beam and the inner ring beam when welding, and the outer flange plate and the inner flange plate when welding. The bearing seat fixing positioning tooling is used to ensure the coaxiality of the inner and outer bearing seats when welding, and the drilling mold is used to ensure the accuracy of the position of the holes of the upper panel and the lower panel. The processing of the revolving frame unit is easy, which can greatly improve the processing quality of the revolving frame unit and avoid the use of large equipment.

[0042] 3. The rotary frame unit processing method of the present invention utilizes processing tooling for further processing, and has the advantages of quick processing, simple use, convenient adjustment and detection, and high processing efficiency.

[0043] 4. The rotary frame unit processing tooling of the present invention adopts a block combination structure, the sub-level tooling structure is compact, the processing economy is good, the service life is long, it is easy to disassemble after completing a project, it occupies less space, and the reuse rate is extremely high. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 It is a structural schematic diagram of an existing revolving frame unit.

[0046] Figure 2 This is a schematic diagram of the structure after the existing revolving frame unit is equipped with a trolley.

[0047] Figure 3 Schematic diagram of the optimized structure of the end face of the revolving frame unit in the embodiment ((a) is before optimization, and (b) is after optimization).

[0048] Figure 4 It is a schematic diagram of the welding structure of the inner flange plate, the bearing seat and the rib plate with the upper and lower panels in the revolving frame unit in the embodiment.

[0049] Figure 5 Schematic diagram of the hole arrangement structure of the inner and outer flange plates in the embodiment.

[0050] Figure 6 It is a schematic diagram of the three-dimensional structure of the flange fixing and positioning tooling in the embodiment.

[0051] Figure 7 Schematic diagram of the hole arrangement structure on the flange fixing and positioning tooling in the embodiment.

[0052] Figure 8 for Figure 7 A cutaway view of the BB surface.

[0053] Fig. 9 It is a schematic diagram of the structure of the bearing seat fixing and positioning tooling in the embodiment.

[0054] Fig.10 Schematic diagram of the structure of the ring in the embodiment.

[0055] Fig.11 for Fig.10 Section view of the CC surface.

[0056] Fig.12 Schematic diagram of the structure of the bearing seat in the embodiment.

[0057] Fig.13 for Fig.12 Sectional view of the DD surface.

[0058] Fig.14 Schematic diagram of the structure of the base in the embodiment.

[0059] Fig.15 for Fig.14 A cut-away view of the EE surface.

[0060] Fig.16 It is a schematic diagram of the structure of the drilling die in the embodiment.

[0061] Fig.17 This is a diagram of the inspection instructions for the slewing frame unit in the embodiment (the flange fixing and positioning tooling has been installed).

[0062] Fig.18 for Fig.17 Schematic diagram of the FF surface expanded by R1.

[0063] Fig.19 It is a structural schematic diagram of the bearing seat fixing and positioning tooling installation in the embodiment (the flange fixing and positioning tooling and the bearing seat fixing and positioning tooling have been installed).

[0064] Fig. 20 for Fig.19 Schematic diagram of the structure of the GG surface.

[0065] Fig.21 for Fig. 20 Sectional view of the HH plane.

[0066] Fig. 22 for Fig.21 A partial enlarged view of Figure I.

[0067] Legend:

[0068] 1. Outer ring beam; 2. Connecting tube beam; 3. Inner ring beam; 4. Outer flange plate; 5. Inner flange plate; 6. Upper panel; 7. Lower panel; 8. Bearing seat; 81. Square wall; 82. Square bottom; 83. Round groove; 84. Round hole; 801. Screw hole; 9. Rib plate; 10. Bolt hole; 11. Saddle pin hole; 12. Flange fixing and positioning tooling; 121. Outer support; 122. Connecting beam; 123. Inner support; 1201. Top plate; 1202. Bottom plate; 120 3. Vertical plate; 1204. Rib plate; 1205. External matching hole; 1206. Internal matching hole; 13. Base; 131. First platform; 132. Second platform; 133. Connector; 1301. Bottom steel; 1302. Top steel plate; 14. Bearing seat fixing and positioning tool; 141. Shaft; 142. Ring; 1421. First circular ring; 1422. Second circular ring; 1423. Through hole; 15. Drilling template; 16. Panel avoidance groove; 17. Adjustment pad. DETAILED DESCRIPTION

[0069] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively and meticulously below in conjunction with the accompanying drawings and preferred embodiments of the present invention, but the protection scope of the present invention is not limited to the following specific embodiments.

[0070] Unless otherwise defined, all the professional terms used below have the same meanings as those generally understood by those skilled in the art. The professional terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention.

[0071] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0072] Example:

[0073] like Figure 1-Figure 4 As shown, the revolving frame unit of this embodiment includes an outer ring beam 1, a connecting tube beam 2 and an inner ring beam 3. The outer ring beam 1 and the inner ring beam 3 are fixedly connected into a whole through the connecting tube beam 2. An outer flange plate 4 and an inner flange plate 5 are fixedly arranged at both ends of the outer ring beam 1 and the inner ring beam 3, respectively. A bearing seat 8 and a rib plate 9 are fixedly arranged between the upper panel 6 and the lower panel 7 of the outer ring beam 1 and the inner ring beam 3. The outer flange plate 4 is embedded and welded between the upper panel 6 and the lower panel 7 of the outer ring beam 1, and the inner flange plate 5 is embedded and welded between the upper panel 6 and the lower panel 7 of the inner ring beam 3. The upper and lower ends of the outer flange plate 4, the inner flange plate 5, the bearing seat 8 and the rib plate 9 are all abutted between the upper panel 6 and the lower panel 7 without gap (without gap welding, such as corner welding).

[0074] In this embodiment, bolt holes 10 are provided on the outer flange plate 4 and the inner flange plate 5, and the distance between two adjacent columns or rows of bolt holes 10 on the outer flange plate 4 remains the same, and the distance between two adjacent columns or rows of bolt holes 10 on the inner flange plate 5 remains the same; the distance between a column of bolt holes 10 on the outer flange plate 4 closest to the inner ring beam 3 and a column of bolt holes 10 on the inner flange plate 5 closest to the outer ring beam 1 is an integer multiple of the distance between two adjacent columns of bolt holes 10 on the outer flange plate 4.

[0075] like Figure 5 As shown, optionally, in this embodiment, the position optimization design of the hole groups of the inner flange plate 5 and the outer flange plate 4 can be adopted in the following manner: the inner flange plate 5 adopts three rows of holes, and the horizontal spacing (N) of the three rows of holes can be one of the three types of 130+130, 160+160 or 200+200mm, and only one value is used for the same project; the outer flange plate 4 adopts four to five rows of holes, and the spacing (M) of adjacent hole rows is basically equal, such as 50mm, and the distance (L) between the row of bolt holes 10 on the outer flange plate 4 closest to the inner ring beam 3 and the row of bolt holes 10 on the inner flange plate 5 closest to the outer ring beam 1 is also an integer multiple of 50mm, such as 3950mm. In addition, the height H of the revolving frame unit of different projects is not much different, so it can be uniformly designed into three rows of holes, and the row spacing K between two adjacent rows of bolt holes 10 on the outer flange plate 4 and the inner flange plate 5 can be 135mm. After the hole position is optimized, it is convenient to use universal tooling to position and weld the inner flange plate 5 and the outer flange plate 4. In this embodiment, the spacing, row spacing, column spacing, etc. between adjacent holes all refer to the distance between the centers of the holes.

[0076] The revolving frame of this embodiment is composed of a plurality of the above-mentioned revolving frame units, and the adjacent outer flange plates 4 and the adjacent inner flange plates 5 between adjacent revolving frame units are fixedly connected by bolts.

[0077] like Figure 4 As shown, in this embodiment, the joints of the adjacent outer flange plates 4 and the adjacent inner flange plates 5 are both provided with saddle pin holes 11 , and the saddle pin holes 11 are provided with saddle pin shafts.

[0078] The processing tooling of the revolving frame unit of this embodiment includes:

[0079] A base 13, used to support the rotary frame unit during the processing;

[0080] The flange fixing and positioning tool 12 is used for positioning when the outer ring beam 1, the connecting tube beam 2 and the inner ring beam 3 are fixed, and when the outer flange plate 4 and the inner flange plate 5 are fixed to the upper panel 6 and the lower panel 7 respectively;

[0081] The bearing seat fixing and positioning tool 14 is used to ensure the coaxiality of the inner and outer bearing seats 8 when the inner and outer bearing seats 8 are fixed to the inner ring beam 3 and the outer ring beam 1 respectively;

[0082] The drilling die 15 is provided with holes for determining the positions of the holes on the upper panel 6 and the lower panel 7 of the outer ring beam 1 and the inner ring beam 3 .

[0083] like Figure 6-Figure 8 As shown, in this embodiment, the flange fixing positioning tool 12 is arranged in pairs, and the flange fixing positioning tool 12 includes an outer support 121, a connecting beam 122 and an inner support 123. The outer support 121 and the inner support 123 are connected into a whole through the connecting beam 122; the outer support 121 and the inner support 123 are mainly formed by fixing a top plate 1201, a bottom plate 1202, a rib plate 1204 and a vertical plate 1203, and the vertical plate 1203 is arranged on the top plate 120 1. The same side end of the bottom plate 1202 is perpendicular to the top plate 1201 and the bottom plate 1202. A hole can be opened on the bottom plate 1202 for fixing with the subsequent base 13. The vertical plate 1203 of the outer support 121 is provided with a plurality of outer matching holes 1205 corresponding to the positions of the plurality of bolt holes 10 on the outer flange plate 4. The vertical plate 1203 of the inner support 123 is provided with a plurality of inner matching holes 1206 corresponding to the positions of the plurality of bolt holes 10 on the inner flange plate 5.

[0084] In this embodiment, two upper and lower rows of outer matching holes 1205 are provided on the vertical plate 1203 of the outer support 121, and the height positions of the upper and lower rows of outer matching holes 1205 are respectively consistent with the height positions of the topmost and bottommost bolt holes 10 on the outer flange plate 4, the number of outer matching holes 1205 in each row is greater than the number of bolt holes 10 in each row on the outer flange plate 4, and the horizontal distance between adjacent outer matching holes 1205 is the same as the distance between two adjacent columns of bolt holes 10 on the outer flange plate 4; two upper and lower rows of inner matching holes 1206 are provided on the vertical plate 1203 of the inner support 123, and the height positions of the upper and lower rows of inner matching holes 1206 are respectively consistent with the height positions of the topmost and bottommost bolt holes 10 on the inner flange plate 5, and the number of inner matching holes 1206 in each row is greater than the number of bolt holes 10 in each row on the inner flange plate 5.

[0085] In this embodiment, the length of the connecting beam 122 is controlled so that the distance between the inner matching holes 1206 matching the row of bolt holes 10 on the inner flange plate 5 closest to the outer ring beam 1 and the row of outer matching holes 1205 on the vertical plate 1203 of the outer support 121 closest to the inner support 123 is an integer multiple of the distance between two adjacent rows of bolt holes 10 on the outer flange plate 4.

[0086] Optionally, in this embodiment, the flange fixing and positioning tooling 12 is used in pairs, and the structure of the tooling (right) is as follows: Figure 6As shown, the tooling (left) is symmetrical with it, and is placed and fixed on the base 13 according to the fan-shaped angle of the revolving frame unit, and is respectively used for positioning and welding the inner flange plate 5 and the outer flange plate 4 on both sides of the reinstalled frame unit. The flange fixing positioning tooling 12 consists of three parts: an outer support 121, a connecting beam 122 and an inner support 123. The connecting beam 122 has an H-shaped cross section, and side plates with holes are welded on both ends; a side plate (which can be a rib plate 1204) of the outer support 121 and the inner support 123 has holes, which correspond to the side plate holes of the connecting beam 122, respectively, for bolting and fastening.

[0087] The structure of the inner support 123 is similar to that of the outer support 121, and both are welded by the top plate 1201, the bottom plate 1202, the vertical plate 1203 and the rib plate 1204. After processing, the vertical plate 1203 is perpendicular to the top plate 1201 and the bottom plate 1202. Two rows of holes are drilled on the vertical plate 1203 of the inner support 123. The hole row size can be 270mm (2 times K), and the horizontal hole column size has three types: 260 (N1), 320 (N2), and 400 (N3) mm, so as to adapt to the three specifications and sizes of the inner flange plate 5 ( Figure 5 In other words, the two outermost rows of holes of the inner flange plate 5 can always find corresponding points on the vertical plate 1203 of the inner support 123. Two rows of holes are also drilled on the vertical plate 1203 of the outer support 121. The hole row size can be 270mm (2 times K), and one row is distributed every 50mm. In this way, since the horizontal spacing of the two outermost rows of holes of the outer flange plate 4 is designed to be an integer multiple of 50mm (such as Figure 5 M in the figure, so the two outermost rows of holes of the outer flange plate 4 can always find corresponding points on the vertical plate 1203 of the outer support 121. The connecting beam 122 makes the distance between the two nearest rows of holes on the vertical plate 1203 of the inner support 123 and the vertical plate 1203 of the outer support 121 an integer multiple of 50mm (such as 3200mm). Since the horizontal spacing design of the two nearest rows of holes on the inner flange plate 5 and the outer flange plate 4 of the revolving frame is required to be an integer multiple of 50, and in most cases L is greater than 3200mm, the position of the inner flange plate 5 on the inner support 123 can be determined first, and then the position of the outer flange plate 4 on the outer support 121 can be determined according to the L value.

[0088] like Figure 7 As shown, because there are more holes on the vertical plate 1203 of the outer support 121, the flange fixing and positioning fixture 12 has a large adjustment range. At the same time, the vertical plate 1203 of the inner support 123 is provided with three hole rows of horizontal sizes (260, 320, 400 mm) at two different positions (more can be provided as needed), so that the adjustment range is further increased. If an individual revolving frame unit L is too small or too large and exceeds the adjustment range, a new shorter or longer connecting beam 122 can be made to adapt to it, and the bolts and nuts between the connecting beam 122 and the support can be removed for replacement.

[0089] like Fig. 22 As shown, in this embodiment, panel avoidance grooves 16 are provided on the upper and lower sides of the vertical plate 1203 .

[0090] like Figure 9-13 As shown, in this embodiment, the bearing seat 8 includes a square wall body 81 and a square bottom 82 arranged on the bottom surface of the square wall body 81, a circular groove 83 is provided in the square wall body 81, and a circular hole 84 with a radius smaller than the radius of the circular groove 83 is opened on the square bottom 82; the bearing seat fixing and positioning tooling 14 includes a shaft body 141 and a pair of rings 142 respectively matched with the inner and outer bearing seats 8, the outer diameter of the shaft body 141 is smaller than the inner diameter of the circular hole 84, the ring 142 includes a first circular ring 1421, the inner hole of the first circular ring 1421 matches the outer diameter of the shaft body 141, and the outer diameter of the first circular ring 1421 matches the inner diameter of the circular groove 83.

[0091] In this embodiment, the ring 142 also includes a second ring 1422 with a radius greater than the first ring 1421. The first ring 1421 and the second ring 1422 are concentric, have the same inner diameter and are fixedly connected to each other. A plurality of screw holes 801 are provided on the side of the square wall 81 away from the square bottom 82, and a plurality of through holes 1423 are provided at the outer edge of the second ring 1422 that match the screw holes 801 so that the second ring 1422 and the square wall 81 can be fixedly connected by bolts.

[0092] In this embodiment, the lengths of the first rings 1421 of the collars 142 at both ends of the shaft 141 may be set differently, as shown in FIG. Fig. 9 shown.

[0093] In this embodiment, the positioning of the inner and outer bearing seats 8 in the revolving frame is based on the circumferential position, radial position and height. The inner and outer bearing seats 8 are directly placed between the upper panel 6 and the lower panel 7, and the height is naturally positioned; the circumferential position is determined by drawing a center line on the revolving frame unit, and the inner and outer bearing seats 8 are aligned with the center line; the radial position is positioned by the end faces of the inner and outer bearing seats 8 being tangent to the arc of the corresponding revolving frame panel (the tangent point can be made as a characteristic point). The bearing seat fixing and positioning tool 14 of this embodiment is used to ensure the coaxiality of the inner and outer bearing seats 8, such as Fig. 9 As shown, it consists of a shaft 141 and two collars 142 (such as Fig.10 , Fig.11 As shown), the shaft body 141 can use the trolley shaft, the inner hole of the first ring 1421 cooperates with the shaft body 141, and the outer diameter of the first ring 1421 cooperates with the circular groove 83 of the inner and outer bearing seats 8 (the bearing seats 8 have been finely processed and formed, as shown in FIG. Fig.12 , Fig.13As shown), multiple holes (such as 6) evenly distributed on the end face of the second ring 1422 are fastened to the bearing seat 8 through bolts, and this state is maintained until the bearing seat 8 and the rotating frame unit are positioned and welded and then removed, thereby ensuring the coaxiality of the inner and outer bearing seats 8.

[0094] like Fig.14 , Fig.15 As shown, in this embodiment, the base 13 includes a first platform 131 and a second platform 132, and the first platform 131 and the second platform 132 are fixedly connected by connecting members 133, and the connecting members 133 are distributed at intervals. The first platform 131 and the second platform 132 both include a bottom steel section 1301 and a top steel plate 1302 fixedly connected to each other, the height of the bottom steel section 1301 is 40-50 cm, and the length of the connecting member 133 is 2-3 m.

[0095] Optionally, the structure of the base 13 is as follows Fig.14 , Fig.15 As shown, the first platform 131 and the second platform 132 are connected (welded) by a connector 133. Each platform is welded into a bracket by two long H-shaped steels and a number of short profiles, and the bracket is welded by thick steel plates. The height H of the base 13 is approximately 400-500 mm. There is a gap of 2-3 meters between the two platforms. When the revolving frame unit is placed on the base 13 for welding, the operator can stand in the gap without bending over, which is convenient for welding. The distance between the two platforms is adjustable. The upper surface of the platform is adjusted to the same elevation with a theodolite and then welded together with the connector 133 to form a solid base 13.

[0096] like Fig.16 As shown, in this embodiment, the drilling die 15 includes a drilling die for the lower panel of the outer ring beam, a drilling die for the lower panel of the inner ring beam, a drilling die for the upper panel of the outer ring beam, and a drilling die for the upper panel of the inner ring beam, and the arc length of the drilling die 15 is 1 / n of the arc length of the outer ring beam 1 or the inner ring beam 3, wherein n is 1-4, and optionally, n is 2. Optionally, the drilling die 15 can be formed by laser blanking of a thin steel plate with a thickness of 6 mm.

[0097] Taking the inner ring beam lower panel drilling die as an example, the design and use of the drilling die 15 are as follows: since the lower panel 7 of the inner ring beam 3 is narrow and long, it is more wasteful to cover all the holes with a whole template, and the template itself will also be greatly deformed, so it is designed as a half-piece in this embodiment; the half-piece drilling die 15 is used to position and punch out a sample punch of the center of one side hole on the lower panel 7 of the inner ring beam 3, and then the drilling die 15 is symmetrically placed on the other side of the lower panel 7 of the inner ring beam 3 to punch out a sample punch of the center of the other side hole. Other drilling dies 15 can also be designed in a similar way to the above-mentioned inner ring beam lower panel drilling die.

[0098] The processing method of the rotary frame unit using the above processing tooling in this embodiment includes the following steps:

[0099] S1: Cutting of the connecting tube beam 2, the upper panel 6, the lower panel 7 and the rib plate 9, cutting, milling and drilling of the outer flange plate 4 and the inner flange plate 5, and finishing of the inner and outer bearing seats 8 to ensure that the heights of the rib plate 9, the outer flange plate 4, the inner flange plate 5 and the inner and outer bearing seats 8 are consistent;

[0100] S2: The upper panel 6, the lower panel 7 and the rib plate 9 are fixedly connected to form an outer ring beam 1 and an inner ring beam 3;

[0101] S3: Draw a revolving frame unit inspection essentials diagram on the base 13 to ensure that the angle dimension, linear dimension and form and position tolerance meet the requirements, and then symmetrically fix the flange fixing positioning tool 12 on the base 13;

[0102] S4: placing the inner ring beam 3 and the outer ring beam 1 between the flange fixing and positioning fixtures 12, and connecting them with the connecting pipe beam 2;

[0103] S5: Then install the inner and outer bearing seats 8 between the upper panel 6 and the lower panel 7 of the inner ring beam 3 and between the upper panel 6 and the lower panel 7 of the outer ring beam 1, determine the fixed connection positions of the inner and outer bearing seats 8, place the bearing seat fixing positioning tool 14 to ensure the coaxiality of the inner and outer bearing seats 8, and then fix the inner and outer bearing seats 8 to the inner ring beam 3 and the outer ring beam 1 respectively;

[0104] S6: Use the flange fixing and positioning tool 12 to position and fix the inner flange plate 5 and the outer flange plate 4, and then fix the inner flange plate 5 and the outer flange plate 4 to the inner ring beam 3 and the outer ring beam 1 respectively;

[0105] S7: Drill holes on the upper panel 6 and the lower panel 7 using the drilling die 15 to complete the processing.

[0106] In order to better illustrate the above processing method, this embodiment provides a detailed processing method description as follows:

[0107] S1: CNC cutting of the upper panel 6, the lower panel 7, the outer flange plate 4 and the inner flange plate 5, cutting of the steel pipe profile connecting the pipe beam 2, laser cutting of the rib plate 9 (to ensure high consistency), and casting of the bearing seat 8.

[0108] S2: The bearing seat 8 is finely processed before welding, and the outer flange plate 4 and the inner flange plate 5 are milled before welding to ensure that the height is consistent with the rib plate 9. The outer flange plate 4 and the inner flange plate 5 also need to be milled and drilled.

[0109] S3: The inner ring beam 3 is welded as a whole (excluding the inner flange plate 5 and the bearing seat 8), and the outer ring beam 1 is welded as a whole (excluding the outer flange plate 4 and the bearing seat 8) to ensure the height consistency and prevent the panel plane from being distorted.

[0110] S4: Build the flange fixing and positioning fixture 12 and the base 13, draw the inspection essentials drawing of the slewing frame unit on the plane of the base 13, and check whether the angle dimension, linear dimension and form and position tolerance meet the requirements. Fig.17 . Fig.17 Feature points can be added as needed. Specifically, the flange fixing and positioning tool 12 (left) (right) is placed symmetrically on the base 13, four feature points are engraved on the R1 and R2 arcs (R1 = R0-L2, R2 = R0+L1) of the top plate 1201 of the inner support 123 and the outer support 121, and the distances L3, L4, and L5 between the four feature points are preliminarily adjusted. The flange fixing and positioning tool 12 is pre-tightened on the base 13 with bolts and nuts (such as Fig.18 As shown), then accurately adjust L3, L4, and L5 to meet the requirements, and tighten the bolts and nuts. In order to ensure that the flange fixing and positioning fixture 12 does not move during use, measures such as adding welded positioning blocks and adding clamping bolts can be taken. Considering that the height of the slewing frame unit of different projects is slightly different, adjustment pads 17 (such as Fig.21 As shown), to accommodate the height differences of the holes of the inner flange plate 5 and the outer flange plate 4 of the slewing frame unit due to different projects.

[0111] S5: The inner ring beam 3 and the outer ring beam 1 are integrally placed in the flange fixing and positioning fixture 12, and are connected by welding with the connecting pipe beam 2. Then, the bearing seat fixing and positioning fixture 14 is used to ensure the coaxiality of the bearing seat 8 (such as Fig.19 As shown), align the position according to the center line and characteristic points, and then weld the inner and outer bearing seats 8.

[0112] In this embodiment, the bearings installed in the inner and outer bearing seats 8 are designed as spherical bearings, and the shaft body 141 can be used to ensure the coaxiality of the bearing seat 8 to avoid overall boring after welding, thereby greatly saving costs and improving production efficiency.

[0113] The angle between the center lines of the inner and outer bearing seats 8 and the dimensions of the two ends of the inner and outer bearing seats 8 do not rely on tooling, but are ensured by drawing: first draw the center line on the slewing frame unit, and then draw the center line on the bearing seat 8. The angle is determined when the two center lines coincide; the end faces of the bearing seat 8 are tangent to the inner and outer arcs of the upper panel 6 and the lower panel 7 respectively (mark the tangent points as feature points), which determines the radial position and circumferential position of the bearing seat 8, and the dimensions of the two ends of the inner and outer bearing seats 8 are also determined. The positioning error of the center line drawn by drawing is within the millimeter level, that is, the positioning accuracy of the trolley shaft can reach within 1 mm, and the clearance between the head and tail of the trolley given by the design is 18 mm, which can largely meet the requirements.

[0114] S6: Use the flange fixing and positioning tool 12 to determine the positions of the inner flange plate 5 and the outer flange plate 4 (bolt each matching positioning hole at the same time to clamp), weld the inner flange plate 5 and the outer flange plate 4 to the adjacent parts (the inner flange plate 5 and the outer flange plate 4 need to be engraved with the positioning center line, and the characteristic points are engraved on the panel) to facilitate measurement and on-site assembly benchmarks.

[0115] The inner flange plate 5 and the outer flange plate 4 are respectively embedded in the inner ring beam 3 and the outer ring beam 1 along the radial direction, and the positioning holes (holes at the four corners of each flange plate, such as Fig. 20 The holes in the cloud-shaped line are connected and fastened with the corresponding positioning holes on the flange fixing positioning tool 12 by positioning bolts, so that the flange is positioned in the radial direction, circumferential direction and height, and the fan-shaped angle and structural size of the revolving frame unit are guaranteed. The inner flange plate 5 and the outer flange plate 4 are welded firmly.

[0116] The vertical plate 1203 of the flange fixing positioning fixture 12 is provided with a panel avoidance groove 16 in the contact area with the end surface of the rotating frame panel. Fig. 22 As shown, this panel avoidance groove 16 is to avoid interference caused by insufficient CNC cutting precision of the panel and excessive length. When the inner flange plate 5 and the outer flange plate 4 are correctly positioned and welded firmly, the excessive length of the panel can be removed to ensure the accuracy of the overall angle and structural dimensions of the revolving frame unit.

[0117] S7: The revolving frame unit is demoulded as a whole, and the angles and diagonal dimensions are checked according to the revolving frame inspection essentials (combined with Leica instrument and manual measurement), and the inner flange plate 5 and the outer flange plate 4 are welded firmly. The revolving frame unit is required to be demoulded after being radially moved toward the inner ring beam 3 as a whole, so as to avoid the revolving frame unit being hoisted as a whole and hitting the tooling, causing the positioning dimension to change.

[0118] S8: The drilling die 15 required for the upper panel 6 and the lower panel 7 is laser cut, and the center line of the inner flange plate 5 and the outer flange plate 4 is permanently positioned, the characteristic points on the panel are positioned, and the position of the drilling die 15 is calibrated, and the accessory installation holes are punched and drilled on the reinstallation frame unit.

[0119] S9: Install the trolley and roller arm, pin gear bracket (or friction plate), inner and outer horizontal rails, side rails and other accessories, and weld the remaining parts.

[0120] S10: painting, inspection, and shipment.

Claims

1. A processing tool for a revolving frame unit, characterized in that: The revolving frame unit comprises an outer ring beam (1), a connecting tube beam (2) and an inner ring beam (3); the outer ring beam (1) and the inner ring beam (3) are fixedly connected to form a whole through the connecting tube beam (2); an outer flange plate (4) and an inner flange plate (5) are fixedly provided at both ends of the outer ring beam (1) and the inner ring beam (3); a bearing seat (8) and a rib plate (9) are fixedly provided between the upper panel (6) and the lower panel (7) of the outer ring beam (1) and the inner ring beam (3); the outer flange plate (4) is embedded and fixedly connected between the upper panel (6) and the lower panel (7) of the outer ring beam (1); the inner flange plate (5) is embedded and fixedly connected between the upper panel (6) and the lower panel (7) of the inner ring beam (3); and the processing tooling comprises: A base (13) for supporting the rotary frame unit during the processing; The flange fixing and positioning tool (12) is used for positioning when the outer ring beam (1), the connecting tube beam (2) and the inner ring beam (3) are fixedly connected, and when the outer flange plate (4) and the inner flange plate (5) are respectively fixedly connected to the upper panel (6) and the lower panel (7); the flange fixing and positioning tool (12) is arranged in pairs, and the flange fixing and positioning tool (12) comprises an outer side support (121), a connecting beam (122) and an inner side support (123); the outer side support (121) and the inner side support (123) are connected into a whole via the connecting beam (122); A bearing seat fixing and positioning tool (14) is used to ensure the coaxiality of the inner and outer bearing seats (8) when the inner and outer bearing seats (8) are respectively fixed to the inner ring beam (3) and the outer ring beam (1); the bearing seat fixing and positioning tool (14) comprises a shaft (141) and a pair of sleeve rings (142) respectively matched with the inner and outer bearing seats (8); A drilling die (15) is provided with holes for determining the positions of holes on the upper panel (6) and the lower panel (7) of the outer ring beam (1) and the inner ring beam (3); the drilling die (15) comprises an outer ring beam lower panel drilling die, an inner ring beam lower panel drilling die, an outer ring beam upper panel drilling die and an inner ring beam upper panel drilling die.

2. The processing tool according to claim 1, characterized in that: The outer support (121) and the inner support (123) are both formed by fixing a top plate (1201), a bottom plate (1202) and a vertical plate (1203); the vertical plate (1203) is arranged at the same side end of the top plate (1201) and the bottom plate (1202) and is perpendicular to the top plate (1201) and the bottom plate (1202); the vertical plate (1203) of the outer support (121) is provided with a plurality of outer matching holes (1205) corresponding to the positions of the plurality of bolt holes (10) on the outer flange plate (4); and the vertical plate (1203) of the inner support (123) is provided with a plurality of inner matching holes (1206) corresponding to the positions of the plurality of bolt holes (10) on the inner flange plate (5).

3. The processing tool according to claim 2, characterized in that: The vertical plate (1203) of the outer support (121) is provided with two upper and lower rows of outer matching holes (1205), the height positions of the upper and lower rows of the outer matching holes (1205) are respectively consistent with the height positions of the topmost and bottommost bolt holes (10) on the outer flange plate (4), the number of the outer matching holes (1205) in each row is greater than the number of the bolt holes (10) in each row on the outer flange plate (4), and the lateral distance between adjacent outer matching holes (1205) is the same as that of the outer flange plate (4). The distances between two adjacent rows of bolt holes (10) on the flange plate (4) are the same; the vertical plate (1203) of the inner support (123) is provided with upper and lower rows of inner matching holes (1206), the height positions of the upper and lower rows of the inner matching holes (1206) are respectively consistent with the height positions of the topmost and bottommost bolt holes (10) on the inner flange plate (5), and the number of the inner matching holes (1206) in each row is greater than the number of the bolt holes (10) in each row on the inner flange plate (5).

4. The processing tool according to claim 3, characterized in that: The length of the connecting beam (122) is controlled so that the distance between the inner matching holes (1206) matching the row of bolt holes (10) on the inner flange plate (5) closest to the outer ring beam (1) and the row of outer matching holes (1205) on the vertical plate (1203) of the outer support (121) closest to the inner support (123) is an integer multiple of the distance between two adjacent rows of bolt holes (10) on the outer flange plate (4).

5. The processing tool according to claim 2, characterized in that: Panel avoidance grooves (16) are provided on the upper and lower sides of the vertical plate (1203).

6. The processing tool according to claim 1, characterized in that: The bearing seat (8) comprises a square wall body (81) and a square bottom (82) arranged on the bottom surface of the square wall body (81); a circular groove (83) is arranged in the square wall body (81); a circular hole (84) having a radius smaller than the radius of the circular groove (83) is opened on the square bottom (82); the outer diameter of the shaft body (141) is smaller than the inner diameter of the circular hole (84); the sleeve (142) comprises a first circular ring (1421); the inner hole of the first circular ring (1421) matches the outer diameter of the shaft body (141); and the outer diameter of the first circular ring (1421) matches the inner diameter of the circular groove (83).

7. The processing tool according to claim 6, characterized in that: The collar (142) further comprises a second circular ring (1422) having a radius greater than that of the first circular ring (1421); the first circular ring (1421) and the second circular ring (1422) are concentric, have the same inner diameter, and are fixedly connected to each other; a plurality of screw holes (801) are provided on a side of the square wall (81) away from the square bottom (82); a plurality of through holes (1423) are provided at the outer edge of the second circular ring (1422) and match the screw holes (801) so that the second circular ring (1422) and the square wall (81) are fixedly connected by bolts.

8. The processing tool according to any one of claims 1 to 7, characterized in that: The base (13) comprises a first platform (131) and a second platform (132), the first platform (131) and the second platform (132) being fixedly connected via a connecting piece (133), the connecting pieces (133) being arranged at intervals, the first platform (131) and the second platform (132) both comprising a bottom steel section (1301) and a top steel plate (1302) fixedly connected to each other, the bottom steel section (1301) having a height of 40-50 cm, and the connecting piece (133) having a length of 2-3 m.

9. The processing tool according to any one of claims 1 to 7, characterized in that: The arc length of the drilling die (15) is 1 / n of the arc length of the outer ring beam (1) or the inner ring beam (3), where n is 1-4.

10. A method for processing a revolving frame unit using the processing tooling according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: Cutting of the connecting tube beam (2), the upper panel (6), the lower panel (7) and the rib plate (9), cutting and drilling of the outer flange plate (4) and the inner flange plate (5), and fine processing of the inner and outer bearing seats (8) to ensure that the heights of the rib plate (9), the outer flange plate (4), the inner flange plate (5) and the inner and outer bearing seats (8) are consistent; S2: The upper panel (6), the lower panel (7) and the rib plate (9) are fixedly connected to form an outer ring beam (1) and an inner ring beam (3); S3: Draw a revolving frame unit inspection essentials diagram on the base (13) to ensure that the angular dimensions, linear dimensions and geometric tolerances meet the requirements, and then symmetrically fix the flange fixing positioning tooling (12) on the base (13); S4: placing the inner ring beam (3) and the outer ring beam (1) between the flange fixing and positioning fixtures (12), and connecting them with the connecting pipe beam (2); S5: The inner and outer bearing seats (8) are respectively installed between the upper panel (6) and the lower panel (7) of the inner ring beam (3) and between the upper panel (6) and the lower panel (7) of the outer ring beam (1), the fixing positions of the inner and outer bearing seats (8) are determined, the bearing seat fixing and positioning tooling (14) is placed to ensure the coaxiality of the inner and outer bearing seats (8), and the inner and outer bearing seats (8) are respectively fixed to the inner ring beam (3) and the outer ring beam (1); S6: using the flange fixing and positioning tool (12) to position and fix the inner flange plate (5) and the outer flange plate (4), and then fixing the inner flange plate (5) and the outer flange plate (4) to the inner ring beam (3) and the outer ring beam (1), respectively; S7: Drill holes on the upper panel (6) and the lower panel (7) using a drilling die (15), and the processing is completed.

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