Manufacturing process of main beam welding assembly of photo-thermal power generation component

Abstract

The invention relates to a manufacturing process for a main beam welding assembly of a photo-thermal power generation component, which belongs to the technical field of welding processes and comprises the following operation steps of: 1, checking drawings and technical requirements of parts; secondly, a main beam support is installed in the middle of the main beam circular pipe on a preassembling station, and a plurality of branch beam riveting pieces are installed on the left side and the right side of the main beam support correspondingly; and thirdly, automatic welding is conducted. And fourthly, full welding operation is conducted on the push rod support, the main beam support and the main beam round pipe in the mode that manual welding and an automatic clamp are combined. And fifthly, air tightness inspection is conducted on full welding of the push rod support. And sixthly, the welding area is subjected to particle splashing and bad weld joint polishing and repair welding work. Seventhly, punching machining is conducted on the main beam circular pipe; and 8, waste in the main beam circular pipe is cleaned, and the integrity of the hole is checked. The device has the characteristics of convenient operation, time and labor saving and good operation stability. The problem of quality control of the main beam welding process is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of welding technology, and in particular to a manufacturing process of a main beam welding assembly of a solar thermal power generation component. Background Art

[0002] Solar thermal power generation components - main beam welding assembly is a part used in solar thermal power generation components. The function of this product is to support the heliostat mirror surface of solar thermal power generation. Its main functions are to support the mirror surface and the wind resistance of the heliostat working group.

[0003] The size of solar thermal power generation components directly affects the flexibility of the mirror in tracking the sun's shadow. Low flexibility directly leads to the degree of heat concentration in the solar thermal project. The welding strength directly affects its ability to resist wind at the project site and the service life of the main beam. Summary of the invention

[0004] The present invention mainly solves the deficiencies in the prior art and provides a manufacturing process for the main beam welding assembly of a solar thermal power generation component, which has the characteristics of convenient operation, time-saving, labor-saving and good operating stability. It solves the problem of quality control of the welding process of the main beam welding assembly.

[0005] The above technical problems of the present invention are mainly solved by the following technical solutions: A manufacturing process of a main beam welding assembly of a solar thermal power generation component, including a main beam welding assembly, the main beam welding assembly is composed of a main beam round tube, a main beam support, a push rod support and a support beam riveted piece, a push rod support welded and fixed to the main beam round tube is provided in the middle of the main beam round tube, a plurality of support beam riveted pieces welded and fixed to the main beam round tube are provided at both ends of the push rod support, and main beam supports welded and fixed to the main beam round tube are provided between both ends of the push rod support and the support beam riveted piece. The main beam round tube is provided with 12 φ30mm holes, and the middle of the main beam round tube is provided with a bottom hole of an M6 threaded hole.

[0006] The manufacturing process of the main beam welding assembly of the solar thermal power generation component includes the following steps: Step 1: Conduct incoming inspection of individual parts and check the drawings and technical requirements of the individual parts.

[0007] The purpose is to identify the status of parts in advance, eliminate unqualified parts, identify special situations in advance, and make special plans.

[0008] The parts are of qualified size, but burrs appear in a certain batch, which may cause zinc nodules after galvanizing. In this case, it is necessary to inspect the key positions of the batch of products after galvanizing and make plans to remove the zinc nodules.

[0009] The second step: install the main beam support to the middle of the main beam round tube at the pre-installation station, and install several support beam rivets on the left and right sides of the main beam support. Loading in the automatic welding process will cause a lot of time to be lost in loading, so a separate pre-loading process needs to be designed.

[0010] The third step: perform automatic welding to complete the welding of the support beam riveted parts and the main beam round tube, and then complete the positioning spot welding of the push rod support, the main beam support and the main beam round tube.

[0011] Step 4: Use a combination of manual welding and automatic clamping to fully weld the push rod support, main beam support and main beam round tube.

[0012] Step 5: Check the air tightness of the full weld of the push rod support.

[0013] Step 6: Grind and repair the spatter particles and bad welds in the welding area.

[0014] Step 7: A special drilling machine is used to drill 12 holes of φ30mm on the wall of the main beam round tube, and the bottom hole of the middle M6 threaded hole is processed; Step 8: Clean the waste inside the main beam round tube and check the integrity of the hole.

[0015] Preferably, the automatic welding equipment is composed of a double-station welding workstation with 5 robotic arms; 10 segment welds are completed on both sides between each support beam riveted part and the main beam round tube; the height of the positioning spot weld is ≥3.0mm and the length is 10 to 12mm.

[0016] Preferably, the push rod support is spot welded at four locations, and the spot welding locations are at the four corners of the push rod support; a single main beam support is spot welded at 12 locations, which are located on both sides of the main beam support and the inner circle of the main beam round tube sleeve and are distributed in an equidistant ring shape.

[0017] As a preferred method, two lines on both sides of the main beam support are completed by manual welding, with a total of four full welds on the two main beam supports, and a weld height of 3.0mm; one full weld is made around the arc plate of the push rod support, with a weld height of 3.0mm.

[0018] Preferably, the full weld air tightness inspection of the push rod support includes the following steps: S1: Spray the testing solution evenly on the weld and its surroundings to achieve full coverage.

[0019] S2: Pass an air flow of 8kgf pressure into the vent hole, observe whether there are bubbles in the weld, and mark the location of the bubbles.

[0020] S3: Repair welding at the marked position; S4: Recheck the air tightness and repeat the process from S1 to S3 until there is no leakage in the entire weld.

[0021] As a preference, the main beam welding assembly should be cooled for 30 minutes before testing the air tightness; and the weld temperature should be felt by hand at a distance of about 100mm to cool to room temperature before measurement. It is strictly forbidden to directly take the hand-welded product for testing.

[0022] The present invention can achieve the following effects: The present invention provides a manufacturing process for the main beam welding assembly of a solar thermal power generation component. Compared with the prior art, the manufacturing process is convenient to operate, time-saving and labor-saving, and has good operating stability. The problem of quality control of the welding process of the main beam welding assembly is solved. Through the single-piece flow of products, the site space is saved, the storage of work-in-progress in the line warehouse is reduced, and the material flow is accelerated.

[0023] The disassembly of each workstation facilitates standardized construction and saves workpiece processing time to the greatest extent. The main beam welding time during the automatic welding process is 6 minutes and 30 seconds, which saves nearly 30% of the time compared to traditional manual welding operations; during the semi-mechanical welding process, the manual rotation of the workpiece is replaced by the assistance of automatic tooling, and the current single-piece welding time is 4 minutes and 50 seconds; the physical energy consumption and processing efficiency are also improved by nearly 50%.

[0024] The first-in-first-out principle is adopted to facilitate product traceability. Since it is a single-piece flow, each process will set a quality monitoring point for the previous process. For defective products, problems can be discovered, traced and corrected in time, greatly reducing the generation and accumulation of defective products in the process. Since each workstation has been automated and standardized, SPC control methods can be used for quality monitoring to efficiently reflect the operation of on-site quality and take preventive measures for product risks as soon as possible.

[0025] The entire line only requires eight operators, which is six fewer than the traditional line. Standardized training for each workstation reduces the requirements for other positions except for welders, and reduces the training time for new employees by 50%. The modularization and standardized operation of the workstations facilitate rapid supervision by on-site managers. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the present invention.

[0027] In the figure: main beam round tube 1, main beam support 2, push rod support 3, support beam riveted part 4. DETAILED DESCRIPTION

[0028] The technical solution of the invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0029] Example: Figure 1As shown, the manufacturing process of the main beam welding assembly of the solar thermal power generation component includes a main beam welding assembly, which is composed of a main beam round tube 1, a main beam support 2, a push rod support 3 and a support beam riveted piece 4. The middle of the main beam round tube 1 is provided with a push rod support 3 welded and fixed to the main beam round tube 1, and both ends of the push rod support 3 are provided with 4 support beam riveted pieces 4 welded and fixed to the main beam round tube 1 in a sleeve-type manner. Main beam supports 2 welded and fixed to the main beam round tube 1 in a sleeve-type manner are provided between both ends of the push rod support 3 and the support beam riveted pieces 4. The main beam round tube 1 is provided with 12 holes of φ30 mm, and the middle of the main beam round tube 1 is provided with a bottom hole of an M6 threaded hole.

[0030] The manufacturing process of the main beam welding assembly of the solar thermal power generation component includes the following steps: Step 1: Conduct incoming inspection of individual parts and check the drawings and technical requirements of the individual parts.

[0031] Step 2: Install the main beam support 2 to the middle of the main beam round tube 1 at the pre-installation station, and install a plurality of supporting beam rivets 4 on the left and right sides of the main beam support 2 respectively.

[0032] The third step: perform automatic welding to complete the welding of the support beam rivet 4 and the main beam round tube 1, and then complete the positioning spot welding of the push rod support 3, the main beam support 2 and the main beam round tube 1.

[0033] The automatic welding equipment is composed of a welding workstation with 5 mechanical arms and double stations; 10 segment welds are completed on both sides between each supporting beam riveted part 4 and the main beam round tube; the height of the positioning spot weld is ≥3.0mm and the length is 10-12mm.

[0034] The push rod support 3 is spot welded at 4 locations, and the spot welding locations are the four corners of the push rod support 3; the single main beam support 2 is spot welded at 12 locations, which are located on both sides of the main beam support 2 and the inner circle of the main beam round tube 1 and are distributed in an equidistant ring shape.

[0035] Step 4: Use manual welding combined with automatic fixtures to fully weld the push rod support 3, main beam support 2 and main beam round tube 1. Manual welding completes 2 lines on both sides of the main beam support 2, a total of 4 full welds on the 2 main beam supports 2, with a weld height of 3.0mm; 1 full weld around the arc plate of the push rod support 3, with a weld height of 3.0mm.

[0036] Step 5: Check the air tightness of the full weld of the push rod support 3. Before testing the air tightness, the main beam welding assembly must be cooled for 30 minutes; and before measuring, feel the weld temperature by hand at a distance of about 100 mm from the weld until it cools to room temperature.

[0037] The full weld air tightness inspection of the push rod support 3 includes the following steps: S1: Spray the testing solution evenly on the weld and its surroundings to achieve full coverage.

[0038] S2: Pass an air flow of 8kgf pressure into the vent hole, observe whether there are bubbles in the weld, and mark the location of the bubbles.

[0039] S3: Perform repair welding at the marked position.

[0040] S4: Recheck the air tightness and repeat the process from S1 to S3 until there is no leakage in the entire weld.

[0041] Step 6: Grind and repair the spatter particles and bad welds in the welding area.

[0042] Step 7: A special drilling machine is used to drill 12 holes of φ30 mm on the wall of the main beam round tube 1, and the bottom hole of the middle M6 threaded hole is processed.

[0043] Step 8: Clean the waste inside the main beam round tube 1 and check the integrity of the hole.

[0044] In summary, the manufacturing process of the main beam welding assembly of the solar thermal power generation component has the characteristics of convenient operation, time-saving, labor-saving and good operation stability, and solves the problem of welding process quality control of the main beam welding assembly.

[0045] The above description is only a specific embodiment of the present invention, but the structural features of the present invention are not limited thereto. Any changes or modifications made by any technician in the field of the present invention are included in the patent scope of the present invention.

Claims

1. A manufacturing process for a main beam welding assembly of a solar thermal power generation component, characterized in that: The invention comprises a main beam welding assembly, wherein the main beam welding assembly is composed of a main beam round tube (1), a main beam support (2), a push rod support (3) and a support beam riveted piece (4); a push rod support (3) is provided in the middle of the main beam round tube (1) and is welded and fixed to the main beam round tube (1); both ends of the push rod support (3) are provided with a plurality of support beam riveted pieces (4) which are welded and fixed to the main beam round tube (1) in a sleeve-type manner; main beam supports (2) which are welded and fixed to the main beam round tube (1) in a sleeve-type manner are provided between both ends of the push rod support (3) and the support beam riveted pieces (4); 12 holes of φ30 mm are provided on the main beam round tube (1); a bottom hole of an M6 threaded hole is provided in the middle of the main beam round tube (1); The manufacturing process of the main beam welding assembly of the solar thermal power generation component includes the following steps: Step 1: Conduct incoming inspection of sub-parts and check the sub-parts drawings and technical requirements; Step 2: Install the main beam support (2) to the middle of the main beam round tube (1) at the pre-installation station, and install a plurality of support beam rivet parts (4) on the left and right sides of the main beam support (2); Step 3: Perform automatic welding to complete the welding of the support beam riveted parts (4) and the main beam round tube (1), and then complete the positioning spot welding of the push rod support (3), the main beam support (2) and the main beam round tube (1); Step 4: Full welding of the push rod support (3), the main beam support (2) and the main beam round tube (1) is performed by combining manual welding with automatic clamping; Step 5: Check the air tightness of the full weld of the push rod support (3); Step 6: Grind and repair the spatter particles and bad welds in the welding area; Step 7: A special drilling machine is used to drill 12 holes of φ30 mm on the wall of the main beam round tube (1), and the bottom hole of the middle M6 threaded hole is processed; Step 8: Clean the waste inside the main beam round tube (1) and check the integrity of the hole.

2. The manufacturing process of the main beam welding assembly of the solar thermal power generation component according to claim 1 is characterized in that: The automatic welding equipment is composed of a welding workstation with five mechanical arms and two workstations; 10 segment welds are completed on both sides between each supporting beam riveted part (4) and the main beam round tube; the height of the positioning spot weld is ≥3.0 mm and the length is 10 to 12 mm.

3. The manufacturing process of the main beam welding assembly of the solar thermal power generation component according to claim 2 is characterized in that: The push rod support (3) is spot welded at four locations, and the spot welding locations are at the four corners of the push rod support (3); and a single main beam support (2) is spot welded at 12 locations, which are located at the inner rings of the main beam round tube (1) on both sides of the main beam support (2) and are distributed in an annular manner with equal spacing.

4. The manufacturing process of the main beam welding assembly of the solar thermal power generation component according to claim 1 is characterized in that: Manual welding was performed to complete two welds on both sides of the main beam support (2), with a total of four full welds on the two main beam supports (2) with a weld height of 3.0 mm; one full weld was performed on the periphery of the arc-shaped plate of the push rod support (3) with a weld height of 3.0 mm.

5. The manufacturing process of the main beam welding assembly of the solar thermal power generation component according to claim 1 is characterized in that The full weld air tightness inspection of the push rod support (3) includes the following steps: S1: Spray the testing solution evenly on the weld and its surroundings to achieve full coverage; S2: Pass an air flow with a pressure of 8kgf into the vent hole, observe whether there are bubbles in the weld, and mark the bubble position; S3: Repair welding at the marked position; S4: Recheck the air tightness and repeat the process from S1 to S3 until there is no leakage in the entire weld.

6. The manufacturing process of the main beam welding assembly of the solar thermal power generation component according to claim 5 is characterized in that: Before testing the air tightness, the main beam welding assembly must be cooled for 30 minutes; and before measurement, use your hand to feel the weld temperature at a distance of about 100mm to cool to room temperature.

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