Space special-shaped corrugated steel belt forming control device and method

Abstract

The invention relates to a space special-shaped corrugated steel strip forming control device and method, and the device comprises a waveform stamping die which comprises a waveform upper die and a waveform lower die, the lower surface of the waveform upper die is provided with a waveform upper forming surface, and the upper surface of the waveform lower die is provided with a lower forming surface matched with the upper forming surface; the limiting plate is provided with a plurality of groups of through holes, the plurality of groups of through holes are arranged at equal intervals, each group of through holes comprises a plurality of through holes arranged at equal intervals, and the plurality of through holes are located on the same arc-shaped track; each first fixing pin is selectively inserted into any through hole, each first fixing pin comprises a first insertion section and a first fixing section, and each first insertion section is in threaded connection with a nut; each second fixing pin is selectively inserted into any through hole, and each second fixing pin comprises a second insertion section and a second fixing section; at least two round feet are arranged at the bottoms of the two positioning blocks and the fixing block, and the distance between every two adjacent round feet is equal to the distance between every two adjacent sets of through holes.

Description

Technical Field

[0001] The invention belongs to the technical field of heat exchangers, and in particular relates to a device and method for controlling the forming of a spatial special-shaped corrugated steel strip. Background Art

[0002] The distribution of tube holes in the tube sheet of the heat exchanger is generally square distribution, triangular distribution, annular distribution and other distribution modes. The square distribution and triangular distribution of the tube holes have the same hole bridges, and the relative positions of the heat exchange tubes are evenly distributed according to the plane rectangular coordinate system. When the tubes are inserted, the support holes of the tube support plate are generally aligned with some tube holes of the tube sheet. The support holes of the tube support plate are positioned to achieve uniform distribution of the heat exchange tubes in the specified space. However, the annular distribution of the tube holes has uneven distribution of the hole bridges, and the hole bridges are small, and there is no tube support plate structure. The gap after the heat exchange tube is inserted needs to be controlled by installing a gap locator. Therefore, the manufacturing accuracy of the gap locator is high, and gap locators of different specifications are required. The existing gap locator includes multiple sections of special-shaped corrugated steel strips welded into a circle in sequence. Each section of the special-shaped corrugated steel strip is arc-shaped, including an arc-shaped corrugated steel strip and an arc-shaped steel strip welded on the outside of the corrugated steel strip. It is usually formed once or multiple times by a mold. The manufacturing cost of the mold is high, and a set of molds is only applicable to the manufacture of special-shaped corrugated steel strips of one specification, and it is not universal. Summary of the invention

[0003] The object of the present invention is to provide a spatial special-shaped corrugated steel strip forming control device and method, which can produce special-shaped corrugated steel strips of different specifications with high production accuracy.

[0004] The present invention is achieved through the following technical solutions:

[0005] A spatial special-shaped corrugated steel strip forming control device, comprising:

[0006] A corrugated stamping die, the corrugated stamping die comprising a corrugated upper die and a corrugated lower die, the lower surface of the corrugated upper die is provided with a corrugated upper forming surface, and the upper surface of the corrugated lower die is provided with a corrugated lower forming surface adapted to the upper forming surface;

[0007] A limit plate, wherein a plurality of through holes are formed on the limit plate, and the plurality of through holes are arranged at equal intervals, each group of through holes includes a plurality of through holes arranged at equal intervals, and the plurality of through holes are located on the same arc track;

[0008] A plurality of first fixing pins, each of which can be selectively inserted into any through hole, the first fixing pin comprising a first insertion section for inserting into the through hole and a first fixing section arranged on the first insertion section, the first insertion section being threadedly connected with a nut;

[0009] A plurality of second fixing pins, each of which can be selectively inserted into any through hole, and the second fixing pin comprises a second insertion section for inserting into the through hole and a second fixing section arranged on the second insertion section;

[0010] Two positioning blocks and a fixing block are provided with at least two round feet at the bottom thereof for inserting into the through holes, and the spacing between two adjacent round feet is equal to the spacing between two adjacent groups of through holes.

[0011] Furthermore, a circle of grooves is provided on the side surface of the first fixing section.

[0012] Furthermore, the limiting plate is fan-shaped, and the plurality of through holes are arranged at equal intervals along the radial direction of the limiting plate fan-shaped.

[0013] Furthermore, a lifting ear is provided on one end of the limiting plate.

[0014] Furthermore, a first engraved line for locating the position of the arc-shaped steel strip is provided on the positioning block, and a second engraved line for locating the position of the corrugated steel strip is provided on any round foot.

[0015] Furthermore, a gap is left between the upper molding surface and the lower molding surface.

[0016] The present invention also discloses a spatial special-shaped corrugated steel strip forming control method, which adopts the above-mentioned spatial special-shaped corrugated steel strip forming control device, and comprises the following steps:

[0017] S1, bending an arc-shaped steel strip, and using a corrugated stamping die to stamp a corrugated steel strip, wherein the corrugated steel strip includes a plurality of wave crests, and a wave trough is formed between two adjacent wave crests;

[0018] S2. According to the size of the arc-shaped steel strip, a group of through holes on the limit plate adjacent to the outer side of the arc-shaped steel strip and a group of through holes adjacent to the inner side of the arc-shaped steel strip are respectively recorded as the first group of through holes and the second group of through holes, and the installation positions of the two fixing blocks are determined on the limit plate;

[0019] S3, installing the two fixing blocks at the two installation positions respectively, and inserting a first fixing pin into every n through holes in the plurality of through holes of the first group of through holes, and fixing the first fixing pin on the limit plate by a nut, wherein the two first fixing pins at both ends are in contact with the two fixing blocks respectively, and n is a value in a preset number range;

[0020] S4, installing the arc-shaped steel belt and the corrugated steel belt, wherein the two ends of the arc-shaped steel belt are respectively in contact with the two fixing blocks, the outer side of the arc-shaped steel belt is in contact with the first fixing pin on the limit plate, the two ends of the corrugated steel belt are located below the fixing blocks, the troughs of the corrugated steel belt are in contact with the inner side of the arc-shaped steel belt, and each trough faces a through hole;

[0021] S5, inserting a second fixing pin into the vacant through holes of the first group of through holes and the second group of through holes, and after standing for a period of time, taking out the second fixing pin at the position where the corrugated steel strip and the arc-shaped steel strip need to be welded, and welding them to obtain a special-shaped corrugated steel strip;

[0022] S6. After the welding is completed, insert the second fixing pins into the vacant through holes of the first through holes and the second through holes, let it stand for a while, and remove all the first fixing pins and the second fixing pins;

[0023] S7. Check the size of the special-shaped corrugated steel strip. If the size is unqualified, adjust the size of the special-shaped corrugated steel strip until the size inspection of the special-shaped corrugated steel strip passes.

[0024] Furthermore, the steps of checking the size of the special-shaped corrugated steel strip include:

[0025] S711, install a preset inspection tube in the vacant through holes of the first group of through holes and the second group of through holes, determine whether there is any jamming during the insertion of the inspection tube, and check whether the assembly gap between the special-shaped corrugated steel strip and the inspection tube does not exceed a preset distance;

[0026] S712. If there is a jam or the assembly gap exceeds the preset distance, the dimension inspection of the special-shaped corrugated steel strip is judged to be unqualified;

[0027] S713. If there is no jamming and the assembly gap does not exceed the preset distance, the dimension inspection of the special-shaped corrugated steel strip is tentatively judged to be qualified;

[0028] S714, after a preset time interval, repeat step S71, if there is no jamming and the assembly gap does not exceed the preset distance, it is determined that the size inspection of the special-shaped corrugated steel strip is qualified.

[0029] Furthermore, the step of adjusting the size of the special-shaped corrugated steel strip includes:

[0030] The through hole where the inspection tube that is stuck is located is recorded as a stuck hole, the through hole where the inspection tube whose assembly clearance exceeds the preset distance is recorded as a large clearance hole, the multiple through holes of the first group of through holes are recorded as first through holes, and the multiple through holes of the second group of through holes are recorded as second through holes;

[0031] If the stuck hole is located inside the special-shaped corrugated steel belt, the inspection tube on the stuck hole is replaced with the second fixing pin, and it is determined whether the stuck hole intersects with the midline of the line connecting the centers of the two first through holes adjacent to it. If so, the inspection tubes on the two first through holes adjacent to the stuck hole are removed; if not, the inspection tube on the first through hole closest to the stuck hole is removed;

[0032] If the stuck hole is located outside the special-shaped corrugated steel belt, replace the inspection tube on the stuck hole with the second fixing pin, and determine whether the stuck hole intersects with the center line of the line connecting the centers of the two second through holes adjacent to it. If so, remove the inspection tubes on the two second through holes adjacent to the stuck hole; if not, remove the inspection tube on the second through hole closest to the stuck hole;

[0033] If the large-gap hole is located inside the special-shaped corrugated steel strip, determine whether the large-gap hole intersects with the center line of the line connecting the centers of the two first through holes adjacent to it. If so, replace the inspection tubes on the two first through holes adjacent to the large-gap hole with the second fixing pin; if not, replace the inspection tube on the first through hole closest to the large-gap hole with the second fixing pin;

[0034] If the large-gap hole is located outside the special-shaped corrugated steel strip, determine whether the large-gap hole intersects with the center line of the two second through holes adjacent to it. If so, replace the inspection tubes on the two second through holes adjacent to the large-gap hole with the second fixing pins. If not, replace the inspection tube on the second through hole closest to the large-gap hole with the second fixing pin.

[0035] Let it stand for a while to complete the size adjustment of the special-shaped corrugated steel strip.

[0036] Furthermore, the method further comprises the following steps:

[0037] Repeat steps S1 to S7 to produce a preset number of special-shaped corrugated steel strips, and weld the preset number of special-shaped corrugated steel strips in sequence to obtain gap positioning pieces;

[0038] The size of each special-shaped corrugated steel strip of the gap positioning piece is checked. If the size is unqualified, the size of the special-shaped corrugated steel strip is adjusted until the size inspection of each special-shaped corrugated steel strip is qualified.

[0039] Compared with the prior art, the beneficial effects of the present invention are as follows: the waveform of the corrugated steel strip is manufactured by a corrugated stamping die to ensure the external dimensions; through the limit plate, the first fixing pin, the second fixing pin and the positioning block, the assembly, welding and size adjustment of corrugated steel strips of different specifications and arc-shaped steel strips of different specifications can be realized, thereby being able to manufacture special-shaped corrugated steel strips of different specifications with high manufacturing precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a schematic diagram of the use of the spatial special-shaped corrugated steel strip forming control device of the present invention;

[0041] Figure 2 It is a schematic diagram of the structure of the corrugated stamping die in the spatial special-shaped corrugated steel strip forming control device of the present invention;

[0042] Figure 3It is a structural schematic diagram of a positioning block in the spatial special-shaped corrugated steel strip forming control device of the present invention;

[0043] Figure 4 It is a top view of the positioning block in the spatial special-shaped corrugated steel strip forming control device of the present invention;

[0044] Figure 5 It is a structural schematic diagram of the first fixing pin in the spatial special-shaped corrugated steel strip forming control device of the present invention;

[0045] Figure 6 It is a schematic diagram of the structure of the second fixing pin in the spatial special-shaped corrugated steel strip forming control device of the present invention.

[0046] In the figure, 1-corrugated stamping mold, 11-corrugated upper die, 12-corrugated lower die, 13-upper forming surface, 14-lower forming surface, 2-limiting plate, 21-through hole, 3-first fixing pin, 31-first insertion section, 32-first fixing section, 33-groove, 34-thread, 4-second fixing pin, 41-second insertion section, 42-second fixing section, 5-positioning block, 51-round foot, 52-first engraved line, 53-second engraved line, 6-lifting ear, 7-corrugated steel belt, 8-arc steel belt. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the 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.

[0049] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0051] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are directions or positional relationships in which the product of the invention is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0052] See also Figures 1 to 6 , Figure 1 This is a schematic diagram of the use of the spatial special-shaped corrugated steel strip forming control device of the present invention, Figure 2 Schematic diagram of the structure of the corrugated stamping die in the spatial special-shaped corrugated steel strip forming control device of the present invention, Figure 3 This is a schematic diagram of the structure of the positioning block in the spatial special-shaped corrugated steel strip forming control device of the present invention. Figure 4 This is a top view of the positioning block in the spatial profiled corrugated steel strip forming control device of the present invention, Figure 5 Schematic diagram of the structure of the first fixing pin in the spatial profiled corrugated steel strip forming control device of the present invention, Figure 6The schematic diagram of the structure of the second fixing pin in the spatial special-shaped corrugated steel strip forming control device of the present invention. A spatial special-shaped corrugated steel strip forming control device includes a corrugated stamping die, a limit plate, a plurality of first fixing pins, a plurality of second fixing pins and two positioning blocks. The corrugated stamping die includes a corrugated upper die and a corrugated lower die. The lower surface of the corrugated upper die is provided with a corrugated upper forming surface. The upper surface of the corrugated lower die is provided with a corrugated lower forming surface adapted to the upper forming surface. The limit plate is provided with a plurality of groups of through holes, and the plurality of groups of through holes are arranged at equal intervals. Each group of through holes includes a plurality of through holes arranged at equal intervals, and the plurality of through holes are located on the same arc trajectory. The arc trajectory is a circular arc trajectory. A part of the fixing block, each first fixing pin can be selectively inserted in any through hole, the first fixing pin includes a first insertion section for inserting in the through hole and a first fixing section arranged on the first insertion section, the first insertion section is threadedly connected with a nut, each second fixing pin can be selectively inserted in any through hole, the second fixing pin includes a second insertion section for inserting in the through hole and a second fixing section arranged on the second insertion section, at least two round feet for inserting in the through hole are provided at the bottom of the fixing block, and the spacing between adjacent two round feet is equal to the spacing between two adjacent groups of through holes.

[0053] The corrugated stamping die is used to stamp the steel strip in the unbent state. By opening and closing the upper corrugated die with an upper forming surface and the lower corrugated die with a lower forming surface, the steel strip can be quickly stamped into a corrugated steel strip. The number of crests and troughs on the upper forming surface can be determined according to actual conditions. In one embodiment, a gap is left between the upper forming surface and the lower forming surface to facilitate stamping the steel strip into a corrugated steel strip.

[0054] The distribution of through holes on the limit plate is consistent with the center distribution of the annular heat exchange tube, and the diameter of the through hole is consistent with the diameter of the heat exchange tube. To ensure the overall rigidity of the limit plate, the thickness of the limit plate is not less than 30 mm. In one embodiment, the limit plate is fan-shaped, and multiple groups of through holes are arranged at equal intervals along the radial direction of the fan of the limit plate. This arrangement can reduce the area of ​​the limit plate and reduce the manufacturing cost of the limit plate. In one embodiment, a lifting lug is provided on one end of the limit plate. The lifting lug is provided on the limit plate to facilitate lifting the limit plate.

[0055] The first insertion section and the first fixing section of the first fixing pin are both cylindrical structures. The diameter of the first insertion section matches the diameter of the through hole, and a clearance or transition fit is adopted, and the error value is within 0.02mm, so that the first insertion section can be inserted into any through hole; a thread is processed on the end of the first insertion section away from the first fixing section. After the first insertion section is inserted into the through hole, the first insertion section cooperates with the nut to tighten the first fixing pin, and the first fixing pin is fixed on the limit plate to eliminate the error caused by the assembly clearance. The first fixing section is used to contact with the arc steel belt, and can fix and limit the position of the arc steel belt and the corrugated steel belt, so that the corrugated steel belt is relatively uniformly stressed when the corrugated steel belt is bent into an arc, and provides support when adjusting the size of the special-shaped corrugated steel belt. In one embodiment, a circle of grooves is provided on the side of the first fixing section. The width of the groove is consistent with the width of the arc steel belt. When installing the arc steel belt, the arc steel belt is inserted into the groove to achieve rapid positioning. The diameter of the first fixing section located in the groove is consistent with the maximum diameter of the heat exchange tube.

[0056] The second insertion section and the second fixing section of the second fixing pin are both cylindrical structures. The diameter of the second insertion section matches the diameter of the through hole, and a clearance or transition fit is adopted with an error value within 0.02 mm, so that the second insertion section can be inserted into any through hole. The diameter of the second fixing section is consistent with the maximum diameter of the heat exchange tube, and can simulate the assembly state of the heat exchange tube on the special-shaped corrugated steel belt. When adjusting the special-shaped corrugated steel belt, the size of the special-shaped corrugated steel belt is adjusted through the second fixing section.

[0057] The fixed block is used to limit the position of the arc-shaped steel strip and the corrugated steel strip, and at least two round feet are inserted into different groups of through holes to install the fixed block on the limit plate. Preferably, there are two round feet at the bottom of the fixed block, and the two round feet are used to insert into two adjacent groups of through holes to install the fixed block on the limit plate. In one embodiment, the positioning block is provided with a first scale line for locating the position of the arc-shaped steel strip, and any round foot is provided with a second scale line for locating the position of the corrugated steel strip. The end of the arc-shaped steel strip is at the required position when it touches the first scale line, and the end of the corrugated steel strip is at the required position when it just overlaps the second scale line of the round foot, thereby realizing rapid positioning and limiting of the arc-shaped steel strip and the corrugated steel strip.

[0058] The present invention also discloses a spatial special-shaped corrugated steel strip forming control method, which adopts the above-mentioned spatial special-shaped corrugated steel strip forming control device, and comprises the following steps:

[0059] S1, bending an arc-shaped steel strip, and using a corrugated stamping die to stamp a corrugated steel strip, wherein the corrugated steel strip includes a plurality of wave crests, and a wave trough is formed between two adjacent wave crests;

[0060] S2. According to the size of the arc-shaped steel strip, a group of through holes on the limit plate adjacent to the outer side of the arc-shaped steel strip and a group of through holes adjacent to the inner side of the arc-shaped steel strip are respectively recorded as the first group of through holes and the second group of through holes, and the installation positions of the two fixing blocks are determined on the limit plate;

[0061] S3, installing the two fixing blocks at the two installation positions respectively, and inserting a first fixing pin into every n through holes in the plurality of through holes of the first group of through holes, and fixing the first fixing pin on the limit plate by a nut, wherein the two first fixing pins at both ends are in contact with the two fixing blocks respectively, and n is a value in a preset number range;

[0062] S4, installing the arc-shaped steel belt and the corrugated steel belt, wherein the two ends of the arc-shaped steel belt are respectively in contact with the two fixing blocks, the outer side of the arc-shaped steel belt is in contact with the first fixing pin on the limit plate, the two ends of the corrugated steel belt are located below the fixing blocks, the troughs of the corrugated steel belt are in contact with the inner side of the arc-shaped steel belt, and each trough faces a through hole;

[0063] S5, inserting a second fixing pin into the vacant through holes of the first group of through holes and the second group of through holes, and after standing for a period of time, taking out the second fixing pin at the position where the corrugated steel strip and the arc-shaped steel strip need to be welded, and welding them to obtain a special-shaped corrugated steel strip;

[0064] S6. After the welding is completed, insert the second fixing pins into the vacant through holes of the first through holes and the second through holes, let it stand for a while, and remove all the first fixing pins and the second fixing pins;

[0065] S7. Check the size of the special-shaped corrugated steel strip. If the size is unqualified, adjust the size of the special-shaped corrugated steel strip until the size inspection of the special-shaped corrugated steel strip passes.

[0066] In the above step S1, according to the size of the special-shaped corrugated steel strip, the curved steel strip is bent separately, and the waveform size of the special-shaped corrugated steel strip in the uncurved state is calculated by modeling, and the corresponding corrugated stamping die is processed. The corrugated stamping die should be finely processed and heat-treated, hardened, etc. Then, the corrugated steel strip is stamped with the steel billet using the corrugated stamping die. The stamped corrugated steel strip includes multiple peaks and troughs.

[0067] In the above step S2, the arc-shaped steel belt is placed on the limit plate so that the arc-shaped steel belt is located between two adjacent groups of through holes. At this time, a group of through holes adjacent to the outer side of the arc-shaped steel belt is recorded as the first group of through holes, and a group of through holes adjacent to the inner side of the arc-shaped steel belt is recorded as the second group of through holes. According to the position of the end of the arc-shaped steel belt, the installation position of the two fixed blocks on the limit plate is determined.

[0068] In the above step S3, the two fixed blocks are taken to two installation positions respectively, and the two round feet of the fixed blocks are respectively inserted into the first group of through holes and the second group of through holes, so that the fixed blocks are installed on the limit plate, and the fixed blocks now span the two groups of through holes. Then, the two first fixing pins are respectively inserted into the through holes adjacent to the fixed blocks in the multiple through holes of the first group of through holes, so that the two first fixing pins are respectively in contact with the fixed blocks to limit the position of the end of the arc-shaped steel belt, and then a first fixing pin is inserted into every n through holes in the multiple through holes of the first group of through holes, and the first fixing pin is fixed to the limit plate by a nut. The preset number range can be set to 3 to 5, and n can select any value from 3 to 5, that is, the value of n can be 3, 4 or 5.

[0069] In the above step S4, the arc-shaped steel belt is installed on the limit plate so that the two ends of the arc-shaped steel belt are respectively in contact with the two fixed blocks, and the outer side of the arc-shaped steel belt is in contact with a plurality of first fixed pins to limit the position of the arc-shaped steel belt. Then the corrugated steel belt is bent and installed so that the two ends of the corrugated steel belt are located below the fixed blocks and overlap with the corresponding round feet, the troughs of the corrugated steel belt are in contact with the inner side of the arc-shaped steel belt, and each trough faces a through hole, so as to facilitate the subsequent fixing of the shape of the corrugated steel belt by the second fixed pins, and simulate the actual use conditions of the corrugated steel belt.

[0070] In the above step S5, second fixing pins are inserted into the remaining through holes on the inner and outer sides of the arc-shaped steel strip to simulate the actual use conditions of the special-shaped corrugated steel strip. The strip is left to stand for a period of time, and the standing time can be set according to actual conditions. The second fixing pins at the positions where the corrugated steel strip and the arc-shaped steel strip need to be welded are taken out, and welding is performed to obtain the special-shaped corrugated steel strip.

[0071] In the above step S6, after welding is completed, the second fixing pin at the welding position is reinserted to simulate the actual use conditions of the special-shaped corrugated steel strip, and it is left to stand for a period of time. The standing time can be set according to actual conditions, and all the first fixing pins and the second fixing pins are removed to facilitate the subsequent inspection of the size of the special-shaped corrugated steel strip.

[0072] In the above step S7, the dimension of the special-shaped corrugated steel strip is checked. If the dimension error of the special-shaped corrugated steel strip exceeds a preset range, the dimension is adjusted on the device until it is qualified.

[0073] Further, in step S7, the step of checking the size of the special-shaped corrugated steel strip includes:

[0074] S711, install a preset inspection tube in the vacant through holes of the first group of through holes and the second group of through holes, determine whether there is any jamming during the insertion of the inspection tube, and check whether the assembly gap between the special-shaped corrugated steel strip and the inspection tube does not exceed a preset distance;

[0075] S712. If there is a jam or the assembly gap exceeds the preset distance, the dimension inspection of the special-shaped corrugated steel strip is judged to be unqualified;

[0076] S713. If there is no jamming and the assembly gap does not exceed the preset distance, the dimension inspection of the special-shaped corrugated steel strip is tentatively judged to be qualified;

[0077] S714, after a preset time interval, repeat step S71, if there is no jamming and the assembly gap does not exceed the preset distance, it is determined that the size inspection of the special-shaped corrugated steel strip is qualified.

[0078] In the above steps S711 to S714, the size of the inspection tube is consistent with the size of the heat exchange tube, and the excess of the heat exchange tube can be used for preparation. Preset inspection tubes are inserted into the through holes on the inner and outer sides of the special-shaped corrugated steel strip. All inspection tubes are required to be independently installed and disassembled without scratching. If a certain through hole is stuck or scratched during the installation of the inspection tube, or after a certain through hole is installed with the inspection tube, the assembly gap between the inspection tube and the special-shaped corrugated steel strip exceeds the preset distance, it means that the size of the special-shaped corrugated steel strip is unqualified and the size of the special-shaped corrugated steel strip needs to be adjusted; the assembly gap can be checked with a feeler gauge, and the preset distance can be set to 0.2mm; if there is no jamming or scratching during the installation of the inspection tubes in all through holes, and after all through holes are installed with the inspection tubes, the assembly gap between each inspection tube and the special-shaped corrugated steel strip does not exceed the preset distance, it means that the size inspection of the special-shaped corrugated steel strip is qualified at this time, and the inspection of the special-shaped corrugated steel strip can be temporarily determined to be qualified, and it can be left to stand for a while. After a period of time, such as after an interval of 24 hours, repeat step S711 to check the size of the special-shaped corrugated steel strip to check whether the size of the special-shaped corrugated steel strip has been fixed. If jamming or scratches occur during the installation of the inspection tube in a certain through hole, or after the inspection tube is installed in a certain through hole, the assembly gap between the inspection tube and the special-shaped corrugated steel strip exceeds the preset distance, it means that the size of the special-shaped corrugated steel strip will change, and the size inspection of the special-shaped corrugated steel strip is unqualified, and the size of the special-shaped corrugated steel strip needs to be further adjusted; if jamming or scratches do not occur during the installation of the inspection tubes in all through holes, and after the inspection tubes are installed in all through holes, the assembly gap between each inspection tube and the special-shaped corrugated steel strip does not exceed the preset distance, it means that the size of the special-shaped corrugated steel strip has been fixed, and it can be determined that the size inspection of the special-shaped corrugated steel strip is qualified.

[0079] Furthermore, in step S7, the step of adjusting the size of the special-shaped corrugated steel strip includes:

[0080] S721, record the through hole where the inspection tube that is stuck is located as a stuck hole, record the through hole where the inspection tube whose assembly clearance exceeds the preset distance is located as a large clearance hole, record the multiple through holes in the first group of through holes as first through holes, and record the multiple through holes in the second group of through holes as second through holes;

[0081] S723, if the stuck hole is located inside the special-shaped corrugated steel strip, replace the inspection tube on the stuck hole with the second fixing pin, and determine whether the stuck hole intersects with the midline of the line connecting the centers of the two first through holes adjacent to it. If so, remove the inspection tubes on the two first through holes adjacent to the stuck hole; if not, remove the inspection tube on the first through hole closest to the stuck hole;

[0082] S724, if the stuck hole is located outside the special-shaped corrugated steel strip, replace the inspection tube on the stuck hole with the second fixing pin, and determine whether the stuck hole intersects with the midline of the line connecting the centers of the two second through holes adjacent to it. If so, remove the inspection tubes on the two second through holes adjacent to the stuck hole; if not, remove the inspection tube on the second through hole closest to the stuck hole;

[0083] S725, if the large-gap hole is located inside the special-shaped corrugated steel strip, determine whether the large-gap hole intersects with the midline of the line connecting the centers of the two first through holes adjacent to it, if so, replace the inspection tubes on the two first through holes adjacent to the large-gap hole with the second fixing pin, if not, replace the inspection tube on the first through hole closest to the large-gap hole with the second fixing pin;

[0084] S726, if the large-gap hole is located outside the special-shaped corrugated steel strip, determine whether the large-gap hole intersects with the center line of the line connecting the centers of the two second through holes adjacent to it, if so, replace the inspection tubes on the two second through holes adjacent to the large-gap hole with the second fixing pins, if not, replace the inspection tube on the second through hole closest to the large-gap hole with the second fixing pin;

[0085] S727. Let it stand for a while to complete the size adjustment of the special-shaped corrugated steel strip.

[0086] In the above steps S721 to S727, if the inspection tube is stuck or scratched when installing, it means that the size of the special-shaped corrugated steel belt at this position is too small, so the heat exchange tube is replaced with a second fixing pin, and the size of the stuck position is enlarged by the second fixing pin. If the stuck hole is located on the inner side of the special-shaped corrugated steel belt, that is, the stuck hole is the second through hole, since the through holes on the limit plate are evenly distributed in an arc shape, the number of through holes in different groups is different, and therefore the number of through holes between two adjacent groups is not one-to-one corresponding. When adjusting the size, the position of the stuck hole is judged. Taking the stuck hole as the second through hole as an example, if the stuck hole and the corresponding If the midline of the line connecting the centers of the two adjacent first through holes intersects, it means that the stuck hole is roughly located in the middle of the two first through holes adjacent to the stuck hole. Therefore, the inspection tubes on the two first through holes adjacent to the stuck hole need to be removed to reserve space for increasing the size of the special-shaped corrugated steel strip at the stuck hole. If the stuck hole and the midline of the line connecting the centers of the two adjacent first through holes do not intersect, it means that the stuck hole is roughly located next to one of the first through holes. Therefore, it is only necessary to remove the inspection tube on the first through hole closest to the stuck hole to reserve space for increasing the size of the special-shaped corrugated steel strip at the stuck hole. Similarly, if the stuck hole is located outside the special-shaped corrugated steel strip, that is, the stuck hole is the first through hole, then the inspection tubes on the two second through holes adjacent to the stuck hole or the inspection tube on the second through hole closest to the stuck hole should be removed to reserve space for increasing the stuck position of the special-shaped corrugated steel strip.

[0087] If after installing the inspection tube, the assembly gap between the special-shaped corrugated steel belt and the inspection tube is checked by a feeler gauge and exceeds the preset distance, it means that the size of the special-shaped corrugated steel belt at this position is too large, and the heat exchange tube at the corresponding position on the other side of the special-shaped corrugated steel belt needs to be replaced with a second fixing pin, and the size of the position where the gap is too large is reduced by the second fixing pin. If the large gap hole is located on the inner side of the special-shaped corrugated steel belt, the large gap hole is the second through hole. Take the large gap hole as the second through hole as an example for explanation. If the large gap hole intersects with the midline of the line connecting the centers of the two adjacent first through holes, This indicates that the hole with a larger gap is roughly located in the middle of the two first through holes adjacent to the stuck hole. Therefore, the inspection tubes on the two first through holes adjacent to the hole with a larger gap need to be replaced with the second fixing pin to reduce the size of the special-shaped corrugated steel strip at the place where the gap is larger. If the hole with a larger gap does not intersect with the midline of the line connecting the centers of the two first through holes adjacent to it, it indicates that the hole with a larger gap is roughly located next to one of the first through holes. Therefore, it is only necessary to replace the inspection tube on the first through hole closest to the hole with a larger gap with the second fixing pin, that is, to reduce the size of the special-shaped corrugated steel strip at the place where the gap is larger. Similarly, if the hole with a larger gap is located outside the special-shaped corrugated steel strip, that is, the hole with a larger gap is the first through hole, then replace the inspection tubes on the two second through holes adjacent to the hole with a larger gap with the second fixing pin or replace the inspection tube on the second through hole closest to the hole with a larger gap with the second fixing pin to reduce the size of the special-shaped corrugated steel strip at the place where the gap is larger.

[0088] After the device is set up according to the above process, it is left to stand for a period of time so that the size of the special-shaped corrugated steel strip is fixed, and the size adjustment of the special-shaped corrugated steel strip is completed.

[0089] Furthermore, in order to avoid the position of the arc-shaped steel strip from being moved during the size adjustment process, during the size adjustment process of the special-shaped corrugated steel strip, a number of first through holes that do not affect the size adjustment are randomly selected, and the heat exchange tubes on the selected first through holes are replaced with first fixing pins. The position of the arc-shaped steel strip is fixed by the first fixing pins.

[0090] Furthermore, the spatial profiled corrugated steel strip forming control method further includes the following steps:

[0091] S8, repeating steps S1 to S7 to produce a preset number of special-shaped corrugated steel strips, and sequentially welding the preset number of special-shaped corrugated steel strips to obtain gap positioning members;

[0092] S9. Check the size of each special-shaped corrugated steel strip of the gap positioning piece. If the size is unqualified, adjust the size of the special-shaped corrugated steel strip until the size inspection of the special-shaped corrugated steel strip passes.

[0093] In the above steps S8 and S9, after the size of each special-shaped corrugated steel strip is well controlled, the size of the gap locator obtained by sequentially welding a preset number of special-shaped corrugated steel strips is generally fine, so the size of the gap locator may not be checked. Of course, in order to ensure that the size of the gap locator meets the design requirements, the size of the gap locator may also be checked. Specifically, the size of each special-shaped corrugated steel strip may be checked according to step S7. If the size is unqualified, the size of the special-shaped corrugated steel strip is adjusted until the size of the special-shaped corrugated steel strip is checked to be qualified, thereby ensuring that the size of the gap locator meets the design requirements.

[0094] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Therefore, any simple modification, equivalent change and modification made to the above embodiment according to the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A spatial special-shaped corrugated steel strip forming control device, characterized in that: include: A corrugated stamping die, the corrugated stamping die comprising a corrugated upper die and a corrugated lower die, the lower surface of the corrugated upper die is provided with a corrugated upper forming surface, and the upper surface of the corrugated lower die is provided with a corrugated lower forming surface adapted to the upper forming surface; A limit plate, wherein the limit plate is provided with a plurality of groups of through holes, and the plurality of groups of through holes are arranged at equal intervals, each group of through holes comprises a plurality of through holes arranged at equal intervals, and the plurality of through holes are located on the same arc track; A plurality of first fixing pins, each of which can be selectively inserted into any through hole, the first fixing pin comprising a first insertion section for inserting into the through hole and a first fixing section arranged on the first insertion section, the first insertion section being threadedly connected with a nut; A plurality of second fixing pins, each of which can be selectively inserted into any through hole, and the second fixing pin comprises a second insertion section for inserting into the through hole and a second fixing section arranged on the second insertion section; Two positioning blocks, the bottom of the fixing block is provided with at least two round feet for inserting into the through holes, and the spacing between two adjacent round feet is equal to the spacing between two adjacent groups of through holes.

2. The spatial profiled corrugated steel strip forming control device according to claim 1, characterized in that: A circle of grooves is formed on the side surface of the first fixing section.

3. The spatial profiled corrugated steel strip forming control device according to claim 1, characterized in that: The limiting plate is fan-shaped, and the plurality of through holes are arranged at equal intervals along the radial direction of the limiting plate fan.

4. The spatial profiled corrugated steel strip forming control device according to claim 1, characterized in that: A lifting ear is arranged on one end of the limiting plate.

5. The spatial profiled corrugated steel strip forming control device according to claim 1, characterized in that: The positioning block is provided with a first engraved line for positioning the position of the arc-shaped steel strip, and any of the round feet is provided with a second engraved line for positioning the position of the corrugated steel strip.

6. The spatial profiled corrugated steel strip forming control device according to claim 1, characterized in that: A gap is left between the upper forming surface and the lower forming surface.

7. A method for controlling the forming of a spatially shaped corrugated steel strip, characterized in that: The spatial special-shaped corrugated steel strip forming control device according to any one of claims 1 to 6 is characterized in that it comprises the following steps: S1, bending an arc-shaped steel strip, and using a corrugated stamping die to stamp a corrugated steel strip, wherein the corrugated steel strip includes a plurality of wave crests, and a wave trough is formed between two adjacent wave crests; S2. According to the size of the arc-shaped steel strip, a group of through holes on the limit plate adjacent to the outer side of the arc-shaped steel strip and a group of through holes on the limit plate adjacent to the inner side of the arc-shaped steel strip are respectively recorded as a first group of through holes and a second group of through holes, and the installation positions of two fixed blocks are determined on the limit plate; S3, installing the two fixing blocks at two installation positions respectively, and inserting a first fixing pin into every n through holes in the first group of through holes, and fixing the first fixing pin on the limit plate by a nut, wherein the two first fixing pins at both ends are in contact with the two fixing blocks respectively, and n is a value in a preset number range; S4, installing the arc-shaped steel belt and the corrugated steel belt, wherein the two ends of the arc-shaped steel belt are respectively in contact with two fixed blocks, the outer side of the arc-shaped steel belt is in contact with the first fixed pin on the limit plate, the two ends of the corrugated steel belt are located below the fixed blocks, the troughs of the corrugated steel belt are in contact with the inner side of the arc-shaped steel belt, and each trough faces a through hole; S5, inserting a second fixing pin into the vacant through holes of the first group of through holes and the second group of through holes, and after standing for a period of time, taking out the second fixing pin at the position where the corrugated steel strip and the arc-shaped steel strip need to be welded, and welding them to obtain a special-shaped corrugated steel strip; S6, after the welding is completed, insert the second fixing pins into the vacant through holes of the first group of through holes and the second through holes, let it stand for a while, and remove all the first fixing pins and the second fixing pins; S7. Check the size of the special-shaped corrugated steel strip. If the size is unqualified, adjust the size of the special-shaped corrugated steel strip until the size of the special-shaped corrugated steel strip passes the inspection.

8. The method for controlling the forming of a spatially shaped corrugated steel strip according to claim 7, characterized in that: The step of checking the size of the special-shaped corrugated steel strip comprises: S711, installing a preset inspection tube in the vacant through holes of the first group of through holes and the second group of through holes, determining whether there is any jamming during the insertion of the inspection tube, and checking whether the assembly gap between the special-shaped corrugated steel strip and the inspection tube does not exceed a preset distance; S712, if there is a jam or the assembly gap exceeds a preset distance, it is determined that the dimension inspection of the special-shaped corrugated steel strip is unqualified; S713. If there is no jamming and the assembly gap does not exceed the preset distance, it is tentatively determined that the dimension inspection of the special-shaped corrugated steel strip is qualified; S714, after a preset time interval, repeat step S71, if there is no jamming and the assembly gap does not exceed the preset distance, it is determined that the size inspection of the special-shaped corrugated steel strip is qualified.

9. The method for controlling the forming of a spatially shaped corrugated steel strip according to claim 8, characterized in that: The step of adjusting the size of the special-shaped corrugated steel strip comprises: The through hole where the inspection tube is stuck is recorded as a stuck hole, the through hole where the inspection tube is located with an assembly clearance exceeding a preset distance is recorded as a clearance-large hole, the multiple through holes in the first group of through holes are recorded as first through holes, and the multiple through holes in the second group of through holes are recorded as second through holes; If the stuck hole is located inside the special-shaped corrugated steel strip, the inspection tube on the stuck hole is replaced with a second fixing pin, and it is determined whether the stuck hole intersects with the midline of the line connecting the centers of the two first through holes adjacent to it. If so, the inspection tubes on the two first through holes adjacent to the stuck hole are removed; if not, the inspection tube on the first through hole closest to the stuck hole is removed; If the stuck hole is located outside the special-shaped corrugated steel strip, the inspection tube on the stuck hole is replaced with a second fixing pin, and it is determined whether the stuck hole intersects with the midline of the line connecting the centers of the two second through holes adjacent to it. If so, the inspection tubes on the two second through holes adjacent to the stuck hole are removed; if not, the inspection tube on the second through hole closest to the stuck hole is removed; If the large-gap hole is located inside the special-shaped corrugated steel strip, determine whether the large-gap hole intersects with the midline of the line connecting the centers of the two first through holes adjacent to it. If so, replace the inspection tubes on the two first through holes adjacent to the large-gap hole with the second fixing pin; if not, replace the inspection tube on the first through hole closest to the large-gap hole with the second fixing pin; If the large-gap hole is located outside the special-shaped corrugated steel strip, determine whether the large-gap hole intersects with the center line of the line connecting the centers of the two second through holes adjacent to it. If so, replace the inspection tubes on the two second through holes adjacent to the large-gap hole with the second fixing pins. If not, replace the inspection tube on the second through hole closest to the large-gap hole with the second fixing pin. The special-shaped corrugated steel strip is left to stand for a period of time to complete the size adjustment of the special-shaped corrugated steel strip.

10. The method for controlling the forming of a spatially shaped corrugated steel strip according to claim 7, characterized in that: The method further comprises the following steps: Repeat steps S1 to S7 to produce a preset number of the special-shaped corrugated steel strips, and weld the preset number of the special-shaped corrugated steel strips in sequence to obtain gap positioning pieces; The size of each special-shaped corrugated steel strip of the gap positioning member is checked. If the size is unqualified, the size of the special-shaped corrugated steel strip is adjusted until the size of each special-shaped corrugated steel strip passes the size inspection.

Images