Manufacturing process and press riveting tool structure of a photothermal power generation component support beam assembly

Abstract

The application relates to a manufacturing process, in particular to a manufacturing process of a photothermal power generation component support beam assembly and a press riveting tool structure. The manufacturing process is carried out in the following steps: a riveting tool, placing a support beam punching sheet, placing a reinforcing rib and a separation pin, placing a support beam punching sheet, riveting, and riveting a finished product. The manufacturing process can quickly and accurately prepare the product.

Description

TECHNICAL FIELD

[0001] The application relates to a manufacturing process, in particular to a manufacturing process and riveting tool structure of a support beam assembly of a photothermal power generation component. BACKGROUND

[0002] The support beam assembly is a part applied to a photothermal power generation component and used for supporting a mirror surface of the photothermal power generation, and the size directly affects the flexibility of the mirror surface in tracking the sun shadow.

[0003] The functions and technical requirements of the main size of the support beam assembly are described.

[0004] The flatness of the bottom surface of the concave structure at the bottom of the support beam is 0.2: the X-direction positioning reference surface is used for subsequent assembly into a finished assembly, and therefore the flatness of the region after the completion of the support beam assembly is strictly required.

[0005] The flatness of the left end surface of the support beam is 0.2: the Y-direction positioning reference surface is used for subsequent assembly into a finished assembly, and therefore the flatness of the region after the completion of the support beam assembly is strictly required.

[0006] The parallelism of the two support beam assemblies is 0.5 and the single flatness is 0.4: the parallelism and the flatness are used for the Z-direction positioning reference surface in subsequent assembly into a finished assembly; in addition, the parallelism of 0.5 is poor, which affects the subsequent assembly of the assembly part to the mirror surface and causes hindrance to the construction, thereby affecting the stability of the whole system.

[0007] The opening size of the two support beam assemblies is 34+ / -0.25: it is an important size for clamping the connecting rod of the mirror surface, and the size is too large to cause the connecting rod to shake during work, thereby affecting the path of the mirror surface in pushing out and shrinking; the size is too small to directly interfere with the installation of the connecting rod or cause excessive resistance during the pushing out and shrinking of the mirror surface, thereby affecting the stability of the whole system.

[0008] The single flatness is 0.4: the combination of the flatness of the other piece is out of tolerance, which has an important influence on the span size of each support beam of the subsequent assembled finished part.

[0009] The diameter of the center hole is 221+1: it is an important matching part when the support beam is assembled with the subsequent assembly, and during the assembly, the support beam is sleeved into the round pipe; if the size is too large, the welding of the round pipe and the support beam is out of tolerance, such as welding failure and virtual welding; if the size is too small, the support beam cannot be sleeved into the round pipe or cannot be adjusted after being sleeved, thereby directly amplifying the tolerance of the round pipe. SUMMARY

[0010] The application mainly solves the problems in the prior art and provides a manufacturing process and riveting tool structure of a support beam assembly of a photothermal power generation component, which can be quickly and accurately prepared.

[0011] The above technical problems of the present application are mainly solved by the following technical solutions:

[0012] A manufacturing process of a photothermal power generation component support beam assembly is performed in the following steps:

[0013] ① Install riveting tooling: assemble the riveting tooling confirmed to be qualified by maintenance to the 315T-500T four-column oil press, centrally install, lock the fastening bolts of the upper and lower tooling connecting machine tool surfaces, and turn on the equipment;

[0014] ② Put in the support beam punching sheet: put one support beam punching sheet into the tooling bottom, the support beam punching sheet is sleeved into the middle positioning hole of the tooling, and the bottom concave surface of the support beam punching sheet is matched into the positioning block of the tooling, and it is confirmed that the support beam punching sheet is completely attached to the tooling bottom surface;

[0015] ③ Put in one piece of reinforcing rib and six pieces of isolation pin according to requirements;

[0016] ④ Put in the support beam punching sheet: put another support beam punching sheet into the upper part of the tooling, the support beam punching sheet is sleeved into the middle positioning hole of the tooling, and the bottom concave surface of the support beam punching sheet is matched into the positioning block of the tooling, and it is confirmed that the reinforcing rib and the isolation pin are exposed on the plane of the support beam punching sheet;

[0017] ⑤ Riveting: after confirming that the parts are installed, start the equipment to try riveting, and observe the following during the trial riveting:

[0018] (1) Whether the opening diameter of the riveting part is within the tolerance ±0.25;

[0019] (2) Whether the head diameter of the isolation pin is completely compacted, and the diameter after riveting should be ≥7.0mm;

[0020] (3) Whether the head of the reinforcing rib is completely compacted, and the maximum height of the head should be ≤3mm;

[0021] After confirming that the above dimensions are qualified, continuous production is carried out, and the above three items need to be sampled and inspected every hour during the production process, and the sampling number is at least one piece;

[0022] ⑥ Product inspection: after the product is produced, the main functional dimensions need to be sampled and inspected, and the sampling number is 13 pieces per batch, and the batch quantity is defined as 200pcs; in addition, the product surface cannot appear serious deformation, scratches, burrs and oil stains and other phenomena, and after confirming that the sampling is qualified, it is stored for use.

[0023] The riveting tool structure of the manufacturing process of the photothermal power component support beam assembly comprises an isolation pin and a reinforcing rib, and further comprises a lower base plate, an upper support beam punching sheet, a lower support beam punching sheet, an isolation pin press head assembly and a reinforcing rib press head assembly; the lower base plate is provided with a positioning assembly for positioning the upper support beam punching sheet and the lower support beam punching sheet; the upper support beam punching sheet is located directly above the lower support beam punching sheet; the isolation pin and the reinforcing rib are arranged between the upper support beam punching sheet and the lower support beam punching sheet; the upper support beam punching sheet, the isolation pin and the lower support beam punching sheet are pressed by the isolation pin press head assembly; and the upper support beam punching sheet, the reinforcing rib and the lower support beam punching sheet are pressed by the reinforcing rib press head assembly.

[0024] Preferably, the isolation pin press head assembly comprises an upper isolation pin press head; the lower base plate is provided with a lower isolation pin press head corresponding to the upper isolation pin press head; the bottom of the isolation pin is in contact with the lower isolation pin press head; the upper part of the isolation pin is in contact with the upper isolation pin press head; and the upper isolation pin press head is driven to move downward to complete the riveting of the upper support beam punching sheet, the isolation pin and the lower support beam punching sheet.

[0025] The reinforcing rib press head assembly comprises an upper reinforcing rib press head; the lower base plate is provided with a lower reinforcing rib press head corresponding to the upper reinforcing rib press head; the bottom of the reinforcing rib is in contact with the lower reinforcing rib press head; the upper part of the reinforcing rib is in contact with the upper reinforcing rib press head; and the upper reinforcing rib press head is driven to move downward to complete the pressing of the upper support beam punching sheet, the reinforcing rib and the lower support beam punching sheet.

[0026] Preferably, the upper isolation pin press head is fixed in the upper base plate, and the upper base plate drives the upper isolation pin press head to move downward; the upper isolation pin press head is fixed to the upper base plate through an isolation pin riveting upper press head fixing plate; and the upper reinforcing rib press head is fixed in the upper base plate, and the upper base plate drives the upper reinforcing rib press head to move downward.

[0027] Preferably, the bottom of the lower isolation pin press head and the bottom of the lower reinforcing rib press head are distributed on the same horizontal plane as the bottom of the lower base plate.

[0028] Preferably, the positioning assembly comprises a center positioning part arranged on the upper part of the lower base plate; the upper support beam punching sheet and the lower support beam punching sheet are positioned by the center positioning part; and the center positioning part is positioned by a positioning pin.

[0029] Preferably, the center cutting method is adopted during riveting; and the operation steps of the center cutting method are as follows:

[0030] The upper and lower isolation pin press heads are provided with a counterbore in the middle; the depth of the counterbore is 3 mm; and the middle part of the counterbore is designed in a conical shape, and the height of the conical shape is generally 2-2.5 mm.

[0031] When the press forms a downward pressure, the product riveting part enters the counterbore first, and then contacts the tapered part, and the material is cut in the middle, and the upper material flows to both sides, which is blocked by the counterbore boundary;

[0032] When further pressed, the material completely fills the internal space, and the beam sheet and the isolation pin and the reinforcing rib are compacted with each other, and finally completely riveted together.

[0033] This type of beam assembly is generally combined with the beam sheet and the separate parts by using the welding process; and the present application uses the riveting method for combination. Its advantages are very obvious:

[0034] 1) Work efficiency advantage: this type of beam assembly adopts welding, and the single piece working time is 900 seconds / piece; and after using riveting, the single piece working time is 15 seconds / piece, and the work efficiency is 60 times that of welding.

[0035] 2) Quality advantage: because the parts are stressed during the welding connection process, the product will produce uncontrollable deformation, resulting in many key dimensions being out of tolerance after the assembly and requiring repair work; and the riveting process is a cold riveting form, which will not produce thermal deformation, so the size difference before and after the product riveting is almost zero, and will not cause the size change after the assembly.

[0036] 3) Energy consumption advantage: using riveting only needs the energy consumption of 1 set of press, and the equipment works for about 50KW per hour, and can produce 240 pieces, with an average single piece energy consumption of 0.21KW; and the energy consumption of welding is more than 150KW, and the output per hour is 4 pieces, with a single piece energy consumption of 37.5KW; the energy consumption of welding is 178.6 times that of riveting.

[0037] The present application uses a 315T pressure oil press riveting structure tool, and the tool has a one-mold-one-cavity structure. Riveting with this tool has the following advantages:

[0038] 1. Riveting with a press, the size difference before and after riveting is almost zero, and the process control is simple;

[0039] 2. One-time positioning for all riveting, and the position accuracy after riveting can reach ±0.05;

[0040] 3. One-time riveting efficiency is high, and 1 piece can be completed in 15 seconds.

[0041] The functions of the tool mainly include the following main template and main blade edge accessory structure:

[0042] The upper backing plate: the main function is to connect the backing plate of the isolation pin riveting upper press head structure, and to be fastened with the workbench of the equipment.

[0043] Isolation pin riveting upper press head fixed plate: the main function is used for positioning and fastening the upper press head position of the isolation pin to the upper pad plate.

[0044] Positioning block: used for fixing the concave profile of the tail of the support beam, the secondary positioning of the support beam, and limiting the rotation of the support beam piece.

[0045] Lower pad plate: used for bearing the support beam parts and the lower part of the riveting tool, and fastening with the lower workbench of the equipment.

[0046] Isolation pin upper press head: during work, the upper press head extrudes the upper part of the isolation pin, achieving the purpose of riveting the isolation pin.

[0047] Isolation pin lower press head: the main function is to position the isolation pin, and during work, the lower press head extrudes the lower part of the isolation pin, achieving the purpose of riveting the isolation pin.

[0048] Center positioning: the center holes of the two support beam pieces are respectively sleeved into the center hole positioning, used for positioning the position of the support beam and the coaxiality of the two support beam pieces.

[0049] Positioning pin: the positioning block is positioned on the pad plate to ensure the accuracy of the positioning position.

[0050] Upper pad plate: the main function is to connect the pad plate of the riveting upper press head structure of the reinforcing rib, and fasten with the upper workbench of the equipment.

[0051] Reinforcing rib upper press head: during work, the upper press head extrudes the upper part of the reinforcing rib, achieving the purpose of riveting the reinforcing rib.

[0052] Reinforcing rib lower press head: the main function is to position the reinforcing rib, and during work, the lower press head extrudes the lower part of the reinforcing rib, achieving the purpose of riveting the reinforcing rib.

[0053] The difference between center cutting riveting and conventional riveting is that when the material is deformed, the pressure is gradually transmitted to the riveting part from the rear, and the riveting part will not be deformed at the riveting position. BRIEF DESCRIPTION OF DRAWINGS

[0054] Figure 1 It is a process flow diagram of the present application;

[0055] Figure 2 It is a partial schematic diagram of the isolation pin riveting of the present application;

[0056] Figure 3 It is a schematic diagram of the riveting process in the present application;

[0057] Figure 4 It is a schematic diagram of the riveting process in the present application;

[0058] Figure 5 It is a schematic diagram of the riveting process in the present application.

[0059] Reference numerals: 1. Upper pad; 2. Isolation pin riveting upper pressure head fixing plate; 3. Positioning block; 4. Lower pad; 5. Isolation pin upper pressure head; 6. Isolation pin; 7. Isolation pin lower pressure head; 8. Center positioning; 9. Positioning pin; 10. Upper pad; 11. Reinforcing rib upper pressure head; 12. Support beam assembly; 13. Reinforcing rib; 14. Reinforcing rib lower pressure head. Detailed implementation method.

[0060] The technical solution of the present invention will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0061] Example 1: A manufacturing process for a solar thermal power generation component support beam assembly, comprising the following steps:

[0062] ① Install riveting fixture: Assemble the riveting fixture, which has been confirmed to be qualified after maintenance, onto the 315T-500T four-column hydraulic press, center it, tighten the fastening bolts connecting the upper and lower fixtures to the machine tool table, and turn on the equipment;

[0063] ② Insert the support beam punch: Place one support beam punch at the bottom of the fixture. The support beam punch is inserted through the positioning hole in the middle of the fixture, and the bottom concave surface of the support beam punch is fitted into the positioning block of the fixture. Make sure the support beam punch is completely in contact with the bottom surface of the fixture.

[0064] ③ Place one reinforcing rib and six isolation pins as required;

[0065] ④ Insert the support beam blank: Place another support beam blank on the upper part of the fixture. The support beam blank is inserted through the positioning hole in the middle of the fixture. The bottom concave surface of the support beam blank is fitted into the positioning block of the fixture. Make sure that the reinforcing ribs and isolation pins are exposed on the plane of the support beam blank.

[0066] ⑤ Riveting: After confirming that the parts are installed, start the equipment for trial riveting. During the trial riveting, observe the following:

[0067] (1) Whether the opening size of the riveted part, 34mm, is within the tolerance range of ±0.25;

[0068] (2) Whether the diameter of the head of the isolation pin is completely compacted, and the diameter after riveting should be ≥7.0mm;

[0069] (3) Whether the head of the reinforcing rib is completely compacted, and the maximum height of the head should be ≤3mm;

[0070] After all the above dimensions have been confirmed to be qualified, production will continue. During the production process, the above three items must be sampled every hour, with at least one item sampled.

[0071] ⑥ Finished Product Inspection: After the product is manufactured, the main functional dimensions need to be randomly inspected. The number of samples to be inspected is 13 pieces per batch, and the quantity of each batch is defined as 200pcs. In addition, the product surface must not have serious deformation, scratches, burrs, oil stains, etc. After the random inspection is confirmed to be qualified, it is put into storage for use.

[0072] A riveting fixture structure for manufacturing a solar thermal power generation component support beam assembly includes a separating pin and a reinforcing rib, as well as a lower pad, an upper support beam stamp, a lower support beam stamp, a separating pin pressing head assembly, and a reinforcing rib pressing head assembly. The lower pad is provided with a positioning assembly for positioning the upper and lower support beam stamps. The upper support beam stamp is located directly above the lower support beam stamp. A separating pin and a reinforcing rib are provided between the upper and lower support beam stamps. The separating pin pressing head assembly presses the upper support beam stamp, the separating pin, and the lower support beam stamp. The reinforcing rib pressing head assembly presses the upper support beam stamp, the reinforcing rib, and the lower support beam stamp.

[0073] The isolation pin pressure head assembly includes an upper isolation pin pressure head, and the lower pad is provided with a lower isolation pin pressure head that is vertically distributed with respect to the upper isolation pin pressure head. The bottom of the isolation pin contacts the lower isolation pin pressure head, and the upper part of the isolation pin contacts the upper isolation pin pressure head. The upper isolation pin pressure head is driven to move downward to complete the riveting of the upper support beam stamp, the isolation pin and the lower support beam stamp.

[0074] The reinforcing rib press head assembly includes an upper reinforcing rib press head, and the lower pad is provided with a lower reinforcing rib press head that is distributed vertically and vertically corresponding to the upper reinforcing rib press head. The bottom of the reinforcing rib is in contact with the lower reinforcing rib press head, and the upper part of the reinforcing rib is in contact with the upper reinforcing rib press head. The upper reinforcing rib press head is driven to move downward to complete the pressing of the upper support beam stamping, the reinforcing rib and the lower support beam stamping.

[0075] The upper pressure head of the isolation pin is fixed in the upper pad, and the upper pad drives the upper pressure head of the isolation pin to move downward. The upper pressure head of the isolation pin and the upper pad are fixed by the upper pressure head fixing plate riveted by the isolation pin; the upper pressure head of the reinforcing rib is fixed in the upper pad, and the upper pad drives the upper pressure head of the reinforcing rib to move downward.

[0076] The bottom of the isolation pin pressing head, the bottom of the reinforcing rib pressing head, and the bottom of the lower pad are distributed on the same horizontal plane.

[0077] The positioning component includes a center positioning device located on the upper part of the lower pad. The upper support beam stamp and the lower support beam stamp are positioned together by the center positioning device, and the center positioning device and the lower pad are positioned by a positioning pin.

[0078] When riveting, a center sectioning method is used. The steps for center sectioning are as follows:

[0079] The upper and lower pressure heads of the isolation pin have a countersunk hole with a depth of 3mm. The countersunk hole has a tapered design in the middle, and the height of the tapered design is generally 2-2.5mm.

[0080] When the press forms downward pressure, and the press head touches the head of the isolation pin through the press, the riveted part of the product first enters the countersunk hole, and then when it comes into contact with the conical part, the material is split in the middle, and the material at the top flows to both sides and is blocked by the countersunk hole boundary.

[0081] As the pressure is applied further down, the material completely fills the internal space, pressing the support beams, isolation pins, and reinforcing ribs together and finally riveting them completely together.

Claims

1. A manufacturing process for a photovoltaic thermal component beam assembly, characterized by The following steps are taken: ① Install riveting tool: install the riveting tool that has been confirmed to be qualified by maintenance on the four-column oil press of 315T-500T, install it in the middle, lock the fastening bolts that connect the tool to the machine table surface, and turn on the equipment; ② Put in the beam punching sheet: put one beam punching sheet into the tool bottom, put the beam punching sheet into the tool middle positioning hole, and put the bottom concave surface of the beam punching sheet into the positioning block of the tool, and confirm that the beam punching sheet is completely attached to the tool bottom surface; ③ Put in the required 1 piece of reinforcing rib and 6 pieces of isolation pin; ④ Put in the beam punching sheet: put another beam punching sheet into the tool upper part, put the beam punching sheet into the tool middle positioning hole, and put the bottom concave surface of the beam punching sheet into the positioning block of the tool, and confirm that the reinforcing rib and the isolation pin are exposed on the plane of the beam punching sheet; ⑤ Riveting: after confirming that the part is installed, start the equipment for trial riveting, and observe the following during trial riveting: (1) Whether the opening size of the riveting part is within the tolerance of ±0.25; (2) Whether the head diameter of the isolation pin is completely compacted, and the diameter after riveting should be ≥7.0mm; (3) Whether the head of the reinforcing rib is completely compacted, and the maximum height of the head should be ≤3mm; After confirming that the above sizes are qualified, continuous production is carried out, and the above three items need to be sampled and inspected every hour during production, and the sampling quantity is at least one piece; ⑥ Product inspection: after the production of the product is completed, the main functional dimensions need to be sampled and inspected, and the sampling quantity is 13 pieces per batch, and the batch quantity is defined as 200pcs; in addition, the product surface cannot have serious deformation, scratches, burrs, and oil stains, etc. After confirming that the sampling is qualified, it is put into storage for use.

2. The press-in tooling structure for the manufacturing process of a solar thermal power component support beam assembly according to claim 1, comprising spacer pins and stiffeners, characterized in that: It also includes a lower pad, an upper beam punching sheet, a lower beam punching sheet, an isolation pin pressing head assembly, and a reinforcing rib pressing head assembly. The lower pad is provided with a positioning assembly for positioning the upper beam punching sheet and the lower beam punching sheet. The upper beam punching sheet is located directly above the lower beam punching sheet. The isolation pin and the reinforcing rib are arranged between the upper beam punching sheet and the lower beam punching sheet. The upper beam punching sheet, the isolation pin, and the lower beam punching sheet are pressed by the isolation pin pressing head assembly. The upper beam punching sheet, the reinforcing rib, and the lower beam punching sheet are pressed by the reinforcing rib pressing head assembly.

3. The press-riveting tooling structure of a manufacturing process of a beam assembly of a CTP component according to claim 2, wherein: The isolation pin pressing head assembly includes an isolation pin upper pressing head. The lower pad is provided with an isolation pin lower pressing head corresponding to the isolation pin upper pressing head in an up-down arrangement. The bottom of the isolation pin is in contact with the isolation pin lower pressing head. The upper part of the isolation pin is in contact with the isolation pin upper pressing head. Driving the isolation pin upper pressing head downward completes the riveting of the upper beam punching sheet, the isolation pin, and the lower beam punching sheet. The reinforcing rib pressing head assembly includes a reinforcing rib upper pressing head. The lower pad is provided with a reinforcing rib lower pressing head corresponding to the reinforcing rib upper pressing head in an up-down arrangement. The bottom of the reinforcing rib is in contact with the reinforcing rib lower pressing head. The upper part of the reinforcing rib is in contact with the reinforcing rib upper pressing head. Driving the reinforcing rib upper pressing head downward completes the pressing of the upper beam punching sheet, the reinforcing rib, and the lower beam punching sheet.

4. The press-riveting tool structure of the manufacturing process of a beam assembly of a photovoltaic thermal component according to claim 3, wherein: The isolation pin upper pressing head is fixed in the upper pad plate, and the upper pad plate drives the isolation pin upper pressing head to displace downward, and the isolation pin upper pressing head is fixed with the upper pad plate through the isolation pin riveting upper pressing head fixing plate.

5. The press-in tooling structure for the manufacturing process of a solar thermal power component support beam assembly according to claim 3, characterized in that: The bottom of the isolation pin lower pressing head and the bottom of the reinforcing rib lower pressing head are distributed on the same horizontal plane with the bottom of the lower pad plate.

6. The press-in tooling structure for the manufacturing process of a solar thermal power component support beam assembly according to claim 2, characterized in that: The positioning assembly comprises a center positioning device arranged on the upper portion of the lower pad plate, the upper beam punching sheet and the lower beam punching sheet are positioned through the center positioning device, and the center positioning device and the lower pad plate are positioned through a positioning pin.

7. The press-in tooling structure for the manufacturing process of a solar thermal power component support beam assembly according to claim 4, characterized in that: The center cutting operation steps are as follows: The isolation pin upper and lower pressing heads are provided with a counterbore in the middle, the depth of the counterbore is 3mm, and the middle of the counterbore is designed in a conical shape, and the height of the conical shape is 2-2.5mm; When the press forms a lower pressing, the pressing head touches the head of the isolation pin through the press, the product riveting part first enters the counterbore, then contacts the conical part, the material is cut in the middle, the upper material flows to both sides, and is blocked by the counterbore boundary; When further pressing, the material completely fills the internal space, and the beam sheet and the isolation pin and the reinforcing rib are compacted with each other, and finally completely riveted together.

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