Automatic welding displacement device for pressure steel pipe tile stiffening ring

Abstract

The utility model relates to the technical field of hydropower station pressure steel pipe production and manufacturing, in particular to an automatic welding displacement device for a pressure steel pipe tile stiffening ring, which comprises a welding / operating platform. A stiffening ring supporting truss is arranged below the welding / operating platform, a stiffening ring positioning unit is arranged on the stiffening ring supporting truss, and tile fixing and overturning mechanisms are arranged on the two sides of the stiffening ring supporting truss. The fixed turnover mechanism comprises a machine table, a tile turntable, a transmission shaft piece and a power mechanism; the power mechanism is mounted on the machine table; the transmission shaft piece is rotationally connected with the machine table through a bearing piece; two ends of the transmission shaft are respectively connected with the tile turntable and the power mechanism; and tile fixing mechanisms are arranged on the edge of the lower half part of the tile turntable at intervals. According to the technical scheme, the in-plant manufacturing precision and production efficiency of the pressure steel pipe tiles can be improved, and automation and standardization of the pressure steel pipe tile manufacturing process are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of production and manufacturing of penstocks for hydropower stations, and in particular to an automatic welding displacement device for penstock tile stiffening rings. Background Art

[0002] In the prior art, there are many large-scale water conservancy and hydropower projects built in high mountain valleys, which involve the production and use of water diversion penstocks. The diameter and other parameters of the penstocks are limited by the maximum road transportation size, and the manufacturing of water diversion penstocks is divided into in-plant tile manufacturing and penstock whole ring manufacturing.

[0003] The devices used in traditional factory tile manufacturing, such as the Chinese patent document with publication number CN212734595U, discloses a large-scale pressure steel pipe tile and stiffening ring welding device, in which a second servo motor is arranged on the vertical frame, and the second servo motor, the second connecting shaft, the second driving gear, and the second driven gear are connected in sequence; a second rotating shaft is arranged at the center of the second driven gear, and one side of the second driven gear is fixed to the vertical section of the L-shaped frame; a first servo motor is arranged on the horizontal section of the L-shaped frame, and the first servo motor, the first connecting shaft, the first driving gear, and the first driven gear are connected in sequence; a first rotating shaft is arranged at the center of the first driven gear, and the upper side of the first driven gear is fixed to the base; an outer vertical plate and an inner vertical plate are arranged on the base, and hydraulic cylinders are fixed on both the outer vertical plate and the inner vertical plate.

[0004] It can be seen that in the prior art, when manufacturing tiles in the factory, the welding of the stiffening ring is usually completed on a vertical assembly station to complete the assembly of multiple tiles, the roundness of the tiles is adjusted by the adjustment device set on the platform, and then the stiffening ring is hoisted to fit closely with the tiles. After the welding of one side of the weld between the stiffening ring and the tile is completed, the assembled tile is turned 180°, and then the weld between the stiffening ring and the assembled tile on the other side is welded. In this way, the traditional vertical assembly station cannot efficiently and safely implement the assembly and welding operation. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes an automatic welding displacement device for penstock tile stiffening rings, which improves the manufacturing accuracy and production efficiency of penstock tiles in the factory and realizes the automation and standardization of the penstock tile manufacturing process.

[0006] The technical solutions adopted to achieve the above purpose are as follows:

[0007] An automatic welding displacement device for stiffening rings of pressure steel pipe tiles, characterized in that it includes a welding / operating platform; two tile fixing and flipping mechanisms are arranged in mirror symmetry below the welding / operating platform, a stiffening ring support truss is arranged between the two tile fixing and flipping mechanisms, and a stiffening ring positioning unit is arranged on the top of the stiffening ring support truss. The fixed flipping mechanism includes a machine platform, a tile turntable, a transmission shaft and a power mechanism; the power mechanism is installed on the machine platform and is electrically connected to the welding / operating platform; the transmission shaft horizontally penetrates the machine platform and is rotatably connected to the machine platform through a bearing; one end of the transmission shaft is fixedly connected to the center of the tile turntable, and the other end is fixedly connected to the power mechanism; a plurality of tile fixing mechanisms are arranged at intervals on the edge of the lower half of the tile turntable.

[0008] Preferably, the welding / operating platform includes a platform column and a platform body, the platform body is installed on the platform column through a rotating drive mechanism, a device control cabinet and a welding operation port are installed on the platform body, two groups of submerged arc automatic welding machines corresponding to the welding seams on both sides are arranged around the welding operation port, and the rotating drive mechanism and the submerged arc automatic welding machine are electrically connected to the device control cabinet respectively.

[0009] Preferably, the tile turntable comprises a circular disk body, and reinforcing ribs are arranged on the rear side of the circular disk body.

[0010] Preferably, the lower half of the tile turntable is provided with a hollow structure, and the upper half is detachably mounted with a counterweight.

[0011] Preferably, the stiffening ring support truss comprises an arc-shaped frame, and a support structure is welded to the bottom of the arc-shaped frame.

[0012] Preferably, the stiffening ring positioning unit comprises a plurality of stiffening ring positioning components, and all stiffening ring positioning components are arranged at intervals in a direction perpendicular to the arc-shaped extension direction of the surface of the stiffening ring supporting truss.

[0013] Preferably, the stiffening ring positioning assembly includes a guide slide rail member fixedly connected to the stiffening ring support truss, and the guidance of the guide slide rail member is consistent with the arc-shaped extension direction of the surface of the stiffening ring support truss; a plurality of stiffening ring support blocks are slidably connected to the guide slide rail member, and the stiffening ring support blocks are provided with stiffening ring retaining notches.

[0014] Preferably, the power mechanism includes a driving motor, a working brake and a reducer; the driving motor is connected to the high-speed shaft of the reducer through the working brake, and the low-speed shaft of the reducer is connected to the transmission shaft.

[0015] Preferably, the tile fixing mechanism includes a tile support platform, an electric lifter and a pressure lever; the tile support platform is fixed to the front side of the tile turntable, and the electric lifter is fixed to the rear side of the tile turntable; a lever avoidance hole is correspondingly provided on the tile turntable, one end of the pressure lever is connected to the electric lifter, and the other end passes through the lever avoidance hole and extends to directly above the tile support platform.

[0016] Preferably, a friction block is provided at the bottom of the pressure lever, at a position above the tile support platform.

[0017] Beneficial effects of the utility model:

[0018] 1) The automatic welding displacement device for the stiffening ring of a pressure steel pipe tile disclosed in this technical solution has high automation performance and can automatically complete the tile body fixation, flipping and stiffening ring body welding operations, which can greatly reduce manual participation and can also reduce some tile body hoisting and flipping processes, that is, it supports the implementation of stiffening ring body welding while the tile body is flipping, and the overall welding is completed in one flipping process, which is of great significance to improving the manufacturing efficiency of pressure steel pipe tile factories. In summary, this technical solution automates and standardizes the pressure steel pipe tile manufacturing process, which can improve the safety of manufacturing in pressure steel pipe tile factories.

[0019] 2) The tile turntable of this technical solution can fix the tile body, and the stiffening ring support truss can hold the stiffening ring body in place, which is of great significance for improving the manufacturing accuracy of pressure steel pipe tiles in the factory. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the axial side of an automatic welding displacement device of a preferred structure of the technical solution;

[0021] Figure 2 It is a schematic diagram of the radial structure of the tile turntable;

[0022] Figure 3 It is a schematic diagram of the top view of the structure of the stiffening ring positioning assembly;

[0023] Figure 4 This is a schematic diagram of the side view structure of the stiffening ring positioning assembly.

[0024] In the figure:

[0025] 1. Machine; 2. Tile turntable; 2.1. Round disk; 2.2. Reinforcement ribs; 2.3. Hollow structure; 2.4. Lever avoidance hole; 3. Transmission shaft; 4. Tile fixing mechanism; 4.1. Tile support platform; 4.2. Electric jacking machine; 4.3. Pressure lever; 4.4. Friction block; 5. Platform column; 6. Platform body; 7. Safety fence; 8. Device control cabinet; 9. Welding operation port; 10. Submerged arc automatic welding machine; 11. Counterweight; 12. Arc frame; 13. Support structure; 14. Stiffening ring positioning assembly; 14.1. Guide slide rail; 14.2. Stiffening ring support block; 14.3. Stiffening ring positioning notch; 15. Driving motor; 16. Working brake; 17. Reducer; 18. Stiffening ring body; 19. Tile body; 20. Bolt; 21. Nut. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments.

[0027] Therefore, the following detailed description of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] Example 1

[0029] This embodiment discloses an automatic welding displacement device for a penstock tile stiffening ring (hereinafter referred to as the automatic welding displacement device), as a preferred implementation scheme of the technical solution. Figure 1 As shown, it includes a welding / operating platform; two tile fixing and flipping mechanisms are arranged in mirror symmetry below the welding / operating platform, a stiffening ring support truss is arranged between the two tile fixing and flipping mechanisms, and a stiffening ring positioning unit is arranged on the top of the stiffening ring support truss. Among them, the welding / operating platform is used to control the operation of the entire automatic welding displacement device, and the staff can implement operation control of the automatic welding displacement device on the welding / operating platform. It is also possible to remotely install an industrial computer to communicate with the welding / operating platform, and control some operating functions of the automatic welding displacement device through the industrial computer.

[0030] The fixed flip mechanism includes a machine 1, a tile turntable 2, a transmission shaft 3 and a power mechanism; the power mechanism is installed on the machine 1 and is electrically connected to the welding / operating platform; the transmission shaft 3 horizontally penetrates the machine 1 and is rotatably connected to the machine 1 through a bearing; one end of the transmission shaft 3 is fixedly connected to the center of the tile turntable 2, and the other end is fixedly connected to the power mechanism; a number of tile fixing mechanisms 4 are arranged at intervals on the edge of the lower half of the tile turntable 2. Among them, the machine mainly provides an installation interface for the power mechanism, and is also the bearing basis of the automatic welding displacement device.

[0031] Based on the above structure, in the actual welding process: the first step is to lift the corresponding stiffening ring body 18 to the stiffening ring support truss through external lifting equipment, and use the stiffening ring positioning unit on the stiffening ring support truss to position the stiffening ring body 18. The second step is to lift the tile body 19 between the two tile fixing and flipping mechanisms by external lifting, and then use the tile fixing mechanism 4 on the edge of the lower half of the two tile turntables 2 to fix the two sides of the tile body 19. The third step is to place a wedge block between the stiffening ring positioning unit and the stiffening ring body 18, so that the stiffening ring body 18 and the tile body 19 are tightly attached, and then spot welding is performed on the stiffening ring body 18 and the tile body 19. The fourth step is to start the power mechanism of the two fixed flipping mechanisms through the welding / operating platform, so that the two power mechanisms run synchronously, and cooperate to control the two tile turntables 2 to rotate synchronously to flip the tile body 19 upward. The fifth step is to start the welding / operating platform during the flipping process of the tile body 19, and to synchronously weld the welds on both sides of the stiffening ring body 18 along the length direction of the stiffening ring body 18 through the welding / operating platform. During this period, the frequency conversion speed regulation method can be used to control the power mechanism to drive the tile turntable 2 to match the flipping speed of the tile body 19 with the speed of the welding operation of the welding / operating platform.

[0032] Example 2

[0033] This embodiment discloses an automatic welding displacement device for stiffening rings of penstock tiles (hereinafter referred to as the automatic welding displacement device), as a preferred implementation scheme of the present technical solution, that is, based on Example 1, its welding / operation platform includes a platform column 5 and a platform body 6, and the platform body 6 is installed on the platform column 5 through a rotary drive mechanism. A device control cabinet 8 and a welding operation port 9 are installed on the platform body 6, and two groups of submerged arc automatic welding machines 10 corresponding to the welds on both sides of the welding operation port 9 are arranged around the welding operation port 9, and the rotary drive mechanism and the submerged arc automatic welding machine 10 are electrically connected to the device control cabinet 8 respectively. Based on this, all the electrical control equipment involved in the present technical solution can be electrically connected to the device control cabinet 8, and the overall operation control of the automatic welding displacement device can be realized through the device control cabinet 8. In addition, considering the safety of the operator, the edge of the platform body 6 is provided with a complete fence.

[0034] Based on the above structure, before the stiffening ring body 18 and the tile body 19 are in place, the rotary drive mechanism can be started through the device control cabinet, and the rotary drive mechanism controls the platform body 6 to rotate around the top of the platform column 5 on the horizontal plane, so that the platform body 6 is away from the position directly above the two tile fixing and flipping mechanisms, leaving space directly above the two tile fixing and flipping mechanisms, which facilitates the stiffening ring body 18 and the tile body 19 to be in place.

[0035] Example 3

[0036] The present embodiment discloses an automatic welding displacement device for a stiffening ring of a penstock tile (hereinafter referred to as the automatic welding displacement device), as a preferred implementation scheme of the present technical solution, that is, based on Embodiment 1 or 2, the tile turntable 2 includes a circular disk body 2.1, and a reinforcing rib 2.2 is provided on the rear side of the circular disk body 2.1, which can ensure that the tile turntable 2 has sufficient rigidity.

[0037] Furthermore, considering the weight of the stiffening ring body 18 and the tile body 19, the tile fixing and flipping mechanism will have a large torque and consume a large amount of power during the flipping process. Based on this, preferably, the lower half of the tile turntable 2 (specifically the circular disk body 2.1) is provided with a hollow structure 2.3, and the upper half is detachably installed with a counterweight body 11. In this way, the tile fixing and flipping mechanism can achieve weight balancing during the rotation process, reduce the power and torque required for the operation of the tile fixing and flipping mechanism, and improve the safety of the operation of the tile fixing and flipping mechanism.

[0038] Example 4

[0039] This embodiment discloses an automatic welding displacement device for a penstock tile stiffening ring (hereinafter referred to as the automatic welding displacement device), as a preferred implementation scheme of the technical solution, that is, based on Embodiment 1, 2 or 3, the stiffening ring support truss includes an arc frame 12, and a support structure 13 is welded to the bottom of the arc frame 12. Based on this structure, the stiffening ring support truss can be obtained by welding metal pipes, which is convenient for material acquisition and processing.

[0040] Example 5

[0041] This embodiment discloses an automatic welding displacement device for stiffening rings of pressure steel pipe tiles (hereinafter referred to as the automatic welding displacement device), as a preferred implementation scheme of the present technical solution, that is, based on Examples 1, 2, 3 or 4, its stiffening ring positioning unit includes a plurality of stiffening ring positioning assemblies 14, and all stiffening ring positioning assemblies 14 are arranged at intervals along a direction perpendicular to the arc-shaped extension direction of the surface of the stiffening ring support truss (i.e., the width direction of the stiffening ring support truss). The number of stiffening ring positioning assemblies 14 is determined by the number of stiffening ring bodies 18 required to be welded, and can be the same as the number of stiffening ring bodies 18 required to be welded, or can be greater than the number of stiffening ring bodies 18 required to be welded. A set of stiffening ring positioning assemblies 14 is installed with one stiffening ring body 18. When the number is greater than the number of stiffening ring bodies 18 required to be welded, some stiffening ring positioning assemblies 14 can be selected to be used.

[0042] Example 6

[0043] This embodiment discloses an automatic welding displacement device for stiffening rings of pressure steel pipe tiles (hereinafter referred to as automatic welding displacement device), as a preferred implementation scheme of this technical solution, that is, based on Example 5, its stiffening ring positioning assembly 14 includes a guide slide rail member 14.1 fixedly connected to the stiffening ring support truss, and the guide of the guide slide rail member 14.1 is consistent with the arc extension direction of the surface of the stiffening ring support truss; a plurality of stiffening ring support blocks 14.2 are slidably connected to the guide slide rail member 14.1, and the stiffening ring support block 14.2 is provided with a stiffening ring clamping notch 14.3. Based on this, according to the different sizes of the stiffening ring body 18, the distance between two adjacent stiffening ring support blocks 14.2 can be adjusted, specifically: a strip guide hole is set on the guide slide rail member 14.1, and the bolt 20 is used to pass through the stiffening ring support block 14.2 and the strip guide hole in turn, and then the nut 21 is put on. Based on this structure, when the nut 21 is loosened, the stiffening ring support block 14.2 can slide along the strip guide hole; when the nut 21 is loosened, the stiffening ring support block 14.2 and the guide rail member 14.1 can be relatively fixed.

[0044] Based on the above structure, when placing the wedge block, the wedge block can be placed between the guide rail member 14 . 1 and the stiffening ring body 18 .

[0045] Example 7

[0046] This embodiment discloses an automatic welding displacement device for a stiffening ring of a pressure steel pipe tile (hereinafter referred to as the automatic welding displacement device), as a preferred implementation scheme of the present technical solution, that is, based on Examples 1, 2, 3, 4, 5 or 6, its power mechanism includes a drive motor 15, a working brake 16 and a reducer 17; the drive motor 15 is connected to the high-speed shaft of the reducer 17 through the working brake 16, and the low-speed shaft of the reducer 17 is connected to the transmission shaft 3.

[0047] Among them, the drive motor 15 uses a variable frequency motor as the power source of the power mechanism, and meets the requirement of controlling the flipping speed of the tile body 19 to match the welding operation speed by variable frequency speed regulation. The reducer 17 is used to amplify the torque of the drive motor 15 and reduce the speed of the output power of the drive motor 15 to facilitate the precise control of the rotation output. During the operation of the automatic welding displacement device, if there is a situation where the machine needs to be stopped, the working brake 16 can ensure the safety and stability of the operation of the automatic welding displacement device. The transmission shaft 3 is used to transmit the torque required for the rotation of the tile turntable 2 and the flipping of the tile body 19.

[0048] Example 8

[0049] The present embodiment discloses an automatic welding displacement device for a stiffening ring of a penstock tile (hereinafter referred to as the automatic welding displacement device), as a preferred implementation scheme of the present technical scheme, that is, based on embodiments 1, 2, 3, 4, 5, 6 or 7, the tile fixing mechanism 4 comprises a tile support platform 4.1, an electric jacking machine 4.2 and a pressure lever 4.3; the tile support platform 4.1 is fixed to the front side of the tile turntable 2, and the electric jacking machine 4.2 is fixed to the rear side of the tile turntable 2; a lever avoidance hole 2.4 is correspondingly provided on the tile turntable 2, one end of the pressure lever 4.3 is connected to the electric jacking machine 4.2, and the other end passes through the lever avoidance hole 2.4 and extends to the top of the tile support platform 4.1.

[0050] Based on the above structure, before the tile body 19 is in place, the electric jacking machine 4.2 is first controlled by the welding / operating platform to operate so as to lift the pressure lever 4.3 to a certain height, so as to facilitate the later placement of the tile body 19; after the tile body 19 is hoisted into place by external hoisting equipment, the electric jacking machine 4.2 is controlled by the welding / operating platform to operate so that the pressure lever 4.3 is lowered until the pressure lever 4.3 cooperates with the tile support platform 4.1, and the tile body 19 is tightened up and down, and multiple tile fixing mechanisms 4 cooperate with each other to fix the tile body 19.

[0051] Furthermore, a friction block 4.4 is provided at the bottom of the pressure lever 4.3, above the tile support platform 4.1. The friction block 4.4 can increase the friction between the tile body 19 and the tile fixing mechanism 4, ensure the reliability of the clamping work of the tile fixing mechanism 4, and further avoid mechanical damage caused by the relative movement between the tile body 19 and the tile fixing mechanism 4.

Claims

1. An automatic welding displacement device for a penstock tile stiffening ring, characterized in that: It comprises a welding / operating platform; two tile fixing and flipping mechanisms are arranged mirror-symmetrically below the welding / operating platform, a stiffening ring supporting truss is arranged between the two tile fixing and flipping mechanisms, and a stiffening ring positioning unit is arranged on the top of the stiffening ring supporting truss; The fixed turning mechanism comprises a machine platform (1), a tile turntable (2), a transmission shaft (3) and a power mechanism; the power mechanism is mounted on the machine platform (1) and is electrically connected to the welding / operating platform; the transmission shaft (3) horizontally penetrates the machine platform (1) and is rotationally connected to the machine platform (1) via a bearing; one end of the transmission shaft (3) is fixedly connected to the center of the tile turntable (2), and the other end is fixedly connected to the power mechanism; a plurality of tile fixing mechanisms (4) are arranged at intervals on the edge of the lower half of the tile turntable (2).

2. The automatic welding displacement device for the stiffening ring of a penstock tile according to claim 1, characterized in that: The welding / operating platform comprises a platform column (5) and a platform body (6); the platform body (6) is mounted on the platform column (5) via a rotary drive mechanism; a device control cabinet (8) and a welding operation opening (9) are mounted on the platform body (6); two groups of submerged arc automatic welding machines (10) are arranged around the welding operation opening (9) for welding the welds on both sides respectively; the rotary drive mechanism and the submerged arc automatic welding machines (10) are electrically connected to the device control cabinet (8) respectively.

3. The automatic welding displacement device for the stiffening ring of a penstock tile according to claim 1, characterized in that: The tile rotating disk (2) comprises a circular disk body (2.1), and a reinforcing rib (2.2) is provided on the rear side of the circular disk body (2.1).

4. The automatic welding displacement device for the stiffening ring of a penstock tile according to claim 1, characterized in that: The lower half of the tile turntable (2) is provided with a hollow structure (2.3), and the upper half is detachably mounted with a counterweight (11).

5. The automatic welding displacement device for the stiffening ring of a penstock tile as claimed in claim 1, characterized in that: The stiffening ring support truss comprises an arc-shaped frame (12), and a support structure (13) is welded to the bottom of the arc-shaped frame (12).

6. The automatic welding displacement device for the stiffening ring of a penstock tile according to claim 1, characterized in that: The stiffening ring positioning unit comprises a plurality of stiffening ring positioning assemblies (14), and all stiffening ring positioning assemblies (14) are arranged at intervals in a direction perpendicular to the arc-shaped extension direction of the stiffening ring support truss surface.

7. The automatic welding displacement device for the stiffening ring of a penstock tile according to claim 6, characterized in that: The stiffening ring positioning assembly (14) comprises a guide rail member (14.1) fixedly connected to the stiffening ring support truss, the guide of the guide rail member (14.1) being consistent with the arc-shaped extension direction of the surface of the stiffening ring support truss; a plurality of stiffening ring support blocks (14.2) are slidably connected to the guide rail member (14.1), and the stiffening ring support blocks (14.2) are provided with stiffening ring clamping notches (14.3).

8. The automatic welding displacement device for the stiffening ring of a penstock tile as claimed in claim 1, characterized in that: The power mechanism comprises a drive motor (15), a working brake (16) and a reducer (17); the drive motor (15) is connected to the high-speed shaft of the reducer (17) via the working brake (16), and the low-speed shaft of the reducer (17) is connected to the transmission shaft (3).

9. The automatic welding displacement device for the stiffening ring of a penstock tile according to claim 1, characterized in that: The tile fixing mechanism (4) comprises a tile support platform (4.1), an electric jack (4.2) and a pressure lever (4.3); the tile support platform (4.1) is fixed to the front side of the tile turntable (2), and the electric jack (4.2) is fixed to the rear side of the tile turntable (2); a lever avoidance hole (2.4) is correspondingly provided on the tile turntable (2); one end of the pressure lever (4.3) is connected to the electric jack (4.2), and the other end passes through the lever avoidance hole (2.4) and extends to the top of the tile support platform (4.1).

10. The automatic welding displacement device for the stiffening ring of a penstock tile according to claim 9, characterized in that: A friction block (4.4) is provided at the bottom of the pressure lever (4.3), located above the tile support platform (4.1).

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