Mounting, debugging and detecting method for multi-wire straightening machine

Abstract

The invention relates to the technical field of straighteners, in particular to an installation, debugging and detection method of a multi-line straightener, which comprises the following steps of: 1, placing a tool steel pipe serving as a reference tool on a V-shaped frame of a lower roller lifting device, and measuring the top surface elevation of the tool steel pipe to ensure that the top surface elevations at the two ends of the tool steel pipe are consistent; secondly, the top face elevation of the tool steel pipe is converted into the top face elevation of the lower straightening roller; thirdly, the movement original point of the lower roller lifting device is set to be the position + 5 mm of the lift stroke, and two-stage safety control is configured; and fourthly, the tool steel pipe in the first step is adopted as a reference tool, and the parallelism of the multiple sets of lower straightening rollers is kept consistent. By means of the installing, debugging and detecting method, the installing precision and the straightening precision of the multi-wire straightening machine can be guaranteed through manual debugging under the special environment condition.

Description

Technical Field

[0001] This invention belongs to the field of straightening machine technology, specifically relating to an installation, debugging, and testing method for a multi-line straightening machine. Background Technology

[0002] The steel section straightening machine is a key piece of equipment in the steel section production line. The straightening process is an important part of the steel section production process, playing a crucial role in production capacity and product quality. Due to its complex structure, comprehensive functions, and high straightening precision, multi-line straightening machines require a comprehensive inspection and adjustment of their installation status and precision before formal production. This ensures accurate installation dimensions and geometric tolerances, guaranteeing the equipment's precision and the straightening accuracy and quality of the products.

[0003] Currently, most of the testing methods for multi-line straightening machines involve testing them directly on large CNC machine tools after they leave the factory. However, due to limitations at the user's installation site, this testing capability is not available.

[0004] Therefore, there is an urgent need to provide a method for testing and debugging multi-line straighteners in special environments to ensure the installation and straightening accuracy of multi-line straighteners. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and to provide a method for ensuring the installation and straightening accuracy of a multi-line straightening machine in special environments where automatic detection devices cannot be used. Under this premise, a method for manually inspecting and adjusting the multi-line straightening machine is required.

[0006] This invention provides a method for the installation, debugging, and testing of a multi-line straightening machine, comprising the following steps: Step 1: Use the tooling steel pipe as a reference tool, place it on the V-shaped frame of the lower roller lifting device, and measure the top elevation of the tooling steel pipe to make the top elevation of both ends of the tooling steel pipe consistent. Step 2: Convert the top surface elevation of the tooling steel pipe to the top surface elevation of the lower straightening roller; Step 3: Set the origin of the lower roller lifting device to the position of the lifting platform stroke + 5mm, and configure two-level safety control; Step 4: Use the tooling steel pipe from Step 1 as a reference tool to ensure that the parallelism of multiple sets of lower straightening rollers remains consistent.

[0007] Furthermore, the cross-sectional dimensions of the tooling steel pipe are Φ300~Φ420mm, and the number of tooling steel pipes is at least 2.

[0008] Furthermore, the specific steps in step one to ensure that the top surfaces of both ends of the tooling steel pipe are at the same elevation include: First, place the tooling steel pipe on the V-shaped frame, ensuring the tooling steel pipe fits snugly against the inclined surface of the V-shaped frame. Then, use a theodolite to check the elevation of the top surface at both ends of the tooling steel pipe. If the elevations at both ends are inconsistent, calculate the difference between them. Disconnect the coupling between the lifting mechanism and the drive synchronous shaft on the geared motor side, start the geared motor, and adjust the elevations according to the difference between the two ends to make them consistent. Then, reconnect the coupling between the lifting mechanism and the drive synchronous shaft. Finally, if the top surface elevations of the tooling steel pipes supported by each group of V-shaped frames are inconsistent, calculate the elevation difference between the other groups and the first group, and drive the synchronous shaft geared motor to adjust the height of multiple groups of V-shaped frames so that the top surface elevations of the tooling steel pipes supported by each group of V-shaped frames are consistent.

[0009] Specifically, during the process of adjusting the height of multiple V-shaped frames by driving the geared motor connected to the synchronous shaft, starting from the position where the elevator stroke is >0, the elevator is gradually moved to the lowest operating limit, and the movement limit is 0 stroke ± 0.5mm.

[0010] Furthermore, in step two, the top surface elevation of the tooling steel pipe is defined as a, and the height difference between the top surface of the tooling steel pipe and the top surface of the lower straightening roller is measured as X. Then, the top surface elevation of the lower straightening roller is b = a + X.

[0011] Furthermore, the two-level security control described in step three includes: First-level control point: Trigger a deceleration signal at the +10mm travel point to control the deceleration motor (6) to run at 50% of the rated speed; Second-level limit position: An emergency stop signal is triggered at the +5mm travel point, cutting off the drive power.

[0012] Furthermore, the specific steps of step four include: First, place the first tooling steel pipe used in step one on the V-shaped frame corresponding to the first group of lower straightening rollers, and then place the second tooling steel pipe on the V-shaped frame corresponding to the second group of straightening rollers. Next, use an outside micrometer to measure the outside diameter d of any tooling steel pipe, and then use an inside micrometer to measure the distance C between two tooling steel pipes, obtaining the distance P between two adjacent lower straightening rollers. Immediately afterward, place the second tooling steel pipe sequentially on the V-shaped frames corresponding to other groups of lower straightening rollers, and measure the distance between the first and second tooling steel pipes respectively as the measured distance. The theoretical distance from the first tooling steel pipe to the second tooling steel pipe corresponding to N lower straightening rollers is C + (N-2)P, where N is a positive integer ≥ 2. Finally, compare the measured distance with the theoretical distance, ensuring that the error between the two is ≤ 0.1mm, thus guaranteeing that the parallelism of multiple groups of lower straightening rollers remains consistent.

[0013] Specifically, the actual distance between the first tooling steel pipe and the second tooling steel pipe needs to be measured at different positions, and the two sets of data are compared with the theoretical distance.

[0014] The present invention has the following advantages over the prior art: 1. This invention reduces the workload and difficulty of work by using tooling steel pipe measurement. Because the original straightening roller assembly has self-aligning roller bearings at both ends, the bearing seats at both ends and the straightening roller are in a free state during the hoisting and assembly process, not in a working state. When a single straightening roller is installed into the V-shaped frame, it is not easy to install it in place, and the straightening roller is not easy to level, requiring manual assistance for adjustment. 2. This invention reduces measurement costs and shortens measurement time by using a tooled steel pipe measurement method. Previous measurement methods involved positioning the entire straightening machine on a large machine tool, which was difficult due to the large size of the straightening machine and the need for a large-scale machine tool to be inspected; the hoisting and benchmark adjustment of the straightening machine each time it was mounted on the machine tool was also difficult and time-consuming. In contrast, this invention, using a tooled steel pipe measurement method, only requires simple, inexpensive, and easily movable measuring tools such as a tooled steel pipe, a theodolite, inner and outer micrometers, and a straightedge. These tools can be used to measure along with the straightening machine at any time, eliminating the need for the straightening machine to be moved.

[0015] 3. Although the installation, debugging and testing method of the multi-line straightening machine provided by the present invention does not use an automatic testing device, after the V-shaped frame is installed in place, the steel pipe is a rigid part, the position is accurate, the measurement is simple and the error is small, which further improves the measurement accuracy; because the straightening roller is a flexible part due to the self-aligning roller bearing, the state is not fixed when directly measured, and the measurement value error is large. 4. The installation, commissioning and testing method of the multi-line straightening machine provided by this invention is safe, efficient and has low labor intensity. The weight of a single straightening roller is about 2000kg, which is heavy, but the weight of a single steel pipe is about 50kg. Using tooling steel pipes for hoisting, adjustment and inspection is more convenient and faster. Attached Figure Description

[0016] The accompanying drawings are incorporated in and form part of this specification, and together with the description serve to explain the principles of the invention.

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the multi-line straightening machine involved in this invention; Figure 2 yes Figure 1 A schematic diagram of a multi-line straightening machine in the AA direction; Figure 3This is a schematic diagram of the lower roller lifting device in this invention; Figure 4 This is a schematic diagram of the lower roller lifting device with tooling steel pipe in this invention; Figure 5 This is a schematic diagram of the lower roller lifting device with tooling steel pipe and the lower straightening roller assembly in this invention; Figure 6 This is the actual installation position of the lower straightening roller in the embodiment of the present invention when the V-shaped frame is not included; Figure 7 This is a schematic diagram of the installation position of the tooling steel pipe in an embodiment of the present invention when the V-shaped frame is not included.

[0019] The components are: 1-frame; 2-upper straightening roller; 3-lower straightening roller; 4-upper roller locking device; 5-shaft support bracket; 6-straightening roller changing basket; 7-lower roller lifting device; 71-lifting machine; 72-synchronous shaft; 73-V-shaped frame; 74-gear motor; 8-lower roller axial adjustment device; 9-base; 10-inlet guide; 11-pinch roller assembly; 12-outlet guide; 13-tooling steel pipe. Detailed Implementation

[0020] The embodiments of the present invention will be described in detail below with reference to examples. However, those skilled in the art will understand that the following examples are only for illustrating the present invention and should not be regarded as limiting the scope of the present invention.

[0021] According to an embodiment of the present invention, in conjunction with the appendix Figure 1As shown, the connection relationships between the various structures of the multi-line straightening machine mentioned in this invention can be referred to the invention patent with patent number CN214976811U. The on-site installation steps of the multi-line straightening machine are as follows: 1. Install the base 9: Determine the position and elevation according to the civil engineering foundation, install it in place, and then tighten the anchor bolts and perform secondary grouting for fixation. 2. Install the frame 1: After placing it on the base 9, recheck the internal position dimensions and elevation. After confirming that there are no errors, tighten it with the base 9 using bolts. Place the frame 1 in front of the base 9 and complete the assembly of the upper roller locking device 4, the shaft bracket 5, the lower roller lifting device 7, the inlet guide 10, the pinch roller assembly 11, and the outlet guide 12 with the frame 1. 3. Install the lower straightening roller assembly 3: Place the 5 lower straightening roller assemblies sequentially in the straightening roller changing basket 6. Both the bottom of the bearing seats in the straightening roll changing basket 6 and the lower straightening roll 3 are designed with paired V-shaped mounting and positioning mechanisms. When the lower straightening roll 3 is installed with the straightening roll changing basket 6, the V-positioning mechanism can achieve self-alignment. 4. Install the upper straightening roll 2: The upper straightening roll 2 is placed on top of the lower straightening roll 3 in the straightening roll changing basket 6. Similarly, both the top of the lower straightening roll 3 and the bottom of the upper straightening roll assembly 2 are designed with paired V-shaped mounting and positioning mechanisms. When the upper straightening roll assembly 2 is installed with the lower straightening roll 3, the V-positioning mechanism can achieve self-alignment. 5. Install the assembly of the straightening roll changing basket 6, the lower straightening roll assembly 3, and the upper straightening roll assembly 2. After assembling the three components, hoist the assembly into place within the frame. During placement, ensure the lower roll lifting device 7 is in the low position. The position of the upper straightening roller 2 on the frame of this straightening machine remains fixed. Therefore, during the process of the straightening roller changing basket 6, the lower straightening roller 3, and the upper straightening roller 2 falling into the frame as a whole, as the straightening roller changing basket 6 descends, the bottom of the upper straightening roller 2 first contacts the mounting positioning surface in the frame 1, and at the same time separates from the straightening roller changing basket 6, reaching the installation position. As the straightening roller changing basket 6 continues to descend, the V-shaped positioning surface at the bottom of the lower straightening roller 3 contacts the V-shaped positioning surface at the bottom of the lower roller lifting device 7, and at the same time separates from the straightening roller changing basket 6, reaching the installation position. After separating from the upper straightening roller 2 and the lower straightening roller 3, the straightening roller changing basket 6 continues to descend and lands on the basket fixing surface in the frame 1. Its positioning method is that the two positioning pins at the bottom of the lower roller lifting device 7 cooperate with the pin holes in the frame 1. The basket does not participate in the work when the straightening machine is working. 6. Lock the upper straightening roller 2: After the upper straightening roller 2 is installed on the frame 1, move the hydraulic nut in the upper roller locking device 4 to the locking position of the upper straightening roller 2 and lock it using the hydraulic nut special pump. 7. Connect all pipelines: including media and electrical lines.

[0022] The above installation also involves the coordination and adjustment of the lower roller axial adjustment device 8.

[0023] The structural connection of the lower roller lifting device 7 can be referenced from the invention patent with patent number CN214488349U.

[0024] The key points for on-site installation and inspection of the multi-line steel straightening machine are: the elevation adjustment of the lower straightening roller 3, including the adjustment of the top surface elevation of a single lower straightening roller 3 and the adjustment of the levelness of the top surface of each lower straightening roller 3.

[0025] According to embodiments of the present invention, the present invention provides an installation, debugging, and testing method for a multi-line straightening machine, as shown in the attached figure. Figure 2-6 As shown, it includes the following steps: Step 1: Use the tooling steel pipe 13 as a reference tool, place it on the V-shaped frame of the lower roller lifting device 7, and measure the top surface elevation of the tooling steel pipe 13 to make the top surface elevations of both ends of the tooling steel pipe 13 consistent.

[0026] Specifically, the cross-sectional dimensions of the tooling steel pipe 13 are Φ300 mm to Φ420 mm, and the number of tooling steel pipes 13 is at least 2.

[0027] The specific steps to ensure that the top surfaces of both ends of the tooling steel pipe 13 are at the same elevation include: First, place the tooling steel pipe 13 on the V-shaped frame 73, ensuring that both ends of the tooling steel pipe 13 are flush with the inclined surfaces of the corresponding ends of the V-shaped frame 73. Then, use a theodolite to check the elevation of the top surface at both ends of the tooling steel pipe 13. If the elevations of the top surfaces at both ends are inconsistent, calculate the difference between them. Disconnect the coupling between the lifting mechanism 71 and the drive synchronous shaft 72 on the side of the reduction motor 74, start the reduction motor 74, and adjust the elevations according to the difference between the elevations at both ends to make them consistent. Then, reconnect the coupling between the lifting mechanism 71 and the drive synchronous shaft 72. Finally, if the elevations of the top surfaces of the tooling steel pipes 13 supported by each group of V-shaped frames 73 are inconsistent, calculate the elevation difference between each group and the first group. Adjust the height of the multiple groups of V-shaped frames 73 using the reduction motor 74 connected to the drive synchronous shaft 72 so that the elevations of the top surfaces of the tooling steel pipes 13 supported by each group of V-shaped frames 73 are consistent. During the process of adjusting the height of multiple sets of V-shaped frames 73 by the geared motor 74 connected to the drive synchronous shaft 72, the position when the stroke of the elevator 71 is >0 is taken as the starting point, and the motor is gradually moved to the lowest operating limit. The movement limit is ±0.5mm of the 0 position of the elevator 71 stroke.

[0028] Step 2: Convert the top surface elevation of the tooling steel pipe 13 to the top surface elevation of the lower straightening roller 3.

[0029] Let the top surface elevation of the tooling steel pipe 13 in step one be a, and the height difference between the top surface of the tooling steel pipe 13 and the top surface of the lower straightening roller 3 be X. Then the top surface elevation of the lower straightening roller 3 is b = a + X.

[0030] Step 3: Automated Origin Setting. When designing the straightening machine, the lower roller lifting device 7 is positioned at the lowest point of the lifting platform 71 (0 stroke position), which is lower than the lowest point during normal straightening operation. A 20mm allowance is generally allowed. Therefore, the origin is set at +10mm of the lifting platform 71's stroke. This satisfies the normal working stroke while preventing damage to the equipment from the lifting platform 71 each time it descends to 0 stroke or lower. The lower limit position can be set at +5mm of the lifting platform 71's stroke, where the machine stops immediately. In other words, the origin of the lower roller lifting device 7 is at the +5mm position of the lifting platform 71's stroke, and two levels of safety control are configured.

[0031] Two-level security controls include: First-level control point: A deceleration signal is triggered at the travel +10mm to control the geared motor 74 to run at 50% of its rated speed; Second-level limit position: An emergency stop signal is triggered at the travel +5mm to cut off the drive power.

[0032] Step 4: Using the tooling steel pipe 13 from Step 1 as a reference tool, ensure that the parallelism of the multiple sets of lower straightening rollers 3 remains consistent. The flatness of the multiple sets of V-shaped frames 73 for lower roller lifting has been guaranteed before the equipment leaves the factory, so at the user's site, only the parallelism of each set of lower straightening rollers 3 needs to be checked.

[0033] First, place the first tooling steel pipe used in step one on the V-shaped frame 73 corresponding to the first group of lower straightening rollers, and then place the second tooling steel pipe on the V-shaped frame 73 corresponding to the second group of straightening rollers. Next, measure the outer diameter d of any tooling steel pipe 13 using an outside micrometer, and then measure the distance C between two tooling steel pipes 13 using an inside micrometer. The distance between two adjacent lower straightening rollers 3 is then P = C + d. Immediately afterward, place the second tooling steel pipe sequentially on the V-shaped frames 73 corresponding to other groups of lower straightening rollers, and measure the distance between the first and second tooling steel pipes respectively. The theoretical distance from the first tooling steel pipe to the second tooling steel pipe corresponding to N groups of lower straightening rollers is C + (N-2)P, where N is a positive integer ≥ 2. Finally, compare the measured distance with the theoretical distance, ensuring the error between the two is ≤ 0.1 mm, thus maintaining consistent parallelism among the multiple groups of lower straightening rollers 3. The actual distance between the first and second tooling steel pipes needs to be measured separately at different positions, and the two sets of data are compared with the theoretical distance. If the error between the measured distance and the theoretical distance between the first and second tooling steel pipes is >0.1mm, the distance between the lower straightening rollers 3 needs to be adjusted by adjusting the distance between the lower V-shaped frame 73 corresponding to the lower straightening rollers 3 until the error between the measured distance and the theoretical distance between the first and second tooling steel pipes is ≤0.1mm.

[0034] The first and second tooling steel pipes used above are tooling steel pipes 13 with the same model and size.

[0035] To better illustrate how the method of the present invention can ensure the installation accuracy and straightening accuracy of a multi-line straightening machine under limited resources. Example

[0036] This embodiment takes the installation, commissioning and testing of a straightening machine with five sets of lower straightening rollers as an example.

[0037] The installation, commissioning and testing method of the multi-line straightening machine in this embodiment includes adjusting the elevation of the top surface of the lower straightening roller 3 and checking the parallelism of each group of lower straightening rollers 3.

[0038] For adjusting the elevation of the top surface of the lower straightening roller, the lower straightening roller assembly 3 is installed on the lower roller lifting device 7, and the mating surface is a V-shaped surface. Therefore, to adjust the elevation of the lower straightening roller 3, the V-shaped surface of the lower roller lifting device 7 must first be adjusted to be at the same height and synchronously. Two tooling steel pipes 13 with a diameter of Φ300mm to Φ420mm are required. In this embodiment, a tooling steel pipe 13 with a diameter of Φ300mm is used, with an outer diameter machined to be equal and a length greater than the distance between the left and right ends of the V-shaped frame 73. The specific process includes the following: The first step is to install the lower roller lifting device 7 inside the frame, and level the height of the V-shaped frames 73 at both ends of each group. Specifically, place one processed tooling steel pipe on the first group of V-shaped frames, ensuring that the tooling steel pipe 13 is in contact with the inclined surface of the V-shaped frame 73 without gaps. Use a theodolite to check the elevation of the top surface of both ends of the tooling steel pipe 13. If the elevations at both ends are inconsistent, calculate the difference. Disconnect the flange bolts on the side of the reduction motor 74 connected to the synchronous shaft 72, drive the reduction motor 74, and adjust the V-shaped frame 73 on the side of the reduction motor 74 separately so that the elevation of the tooling steel pipe 13 is consistent with the elevation on the other side. Close the flange bolts, install according to the dimensions in the drawings, and drive the reduction motor 74. The high-speed motor 74 lowers the V-shaped frame of the lower roller lifting device 7 and the tooling steel pipe 13 to their lowest positions. Record the elevation +a at both ends of the tooling steel pipe 13. Note that the lowest position of the V-shaped frame 73 of the lower roller lifting device 7 and the tooling steel pipe 13 corresponds to the 0 stroke position of the lifting machine 71. When adjusting the elevation, start adjusting when the lifting machine 71 is slightly above the 0 stroke, and start jogging when it is close to the 0 stroke. Stop immediately when it reaches the 0 stroke. The lowest position during adjustment must not be lower than the 0 stroke of the lifting machine 71, otherwise the lifting machine 71 may jam and the equipment may be damaged. After adjusting the first set of V-shaped frames and tooling steel pipes and recording the elevation data, keep them still. Using this as a reference, place the second tooling steel pipe on the second set of V-shaped frames in the same way, adjust the elevation to match the elevation of the first set, and record the data. Place the second tooling steel pipe on the third, fourth, and fifth sets of V-shaped frames, adjust the elevation to match the elevation of the first set, and record the data.

[0039] The second step is to convert the top surface elevation of the tooling steel pipe 13 into the top surface elevation of the lower straightening roller 3. Using the top surface elevation 'a' of the tooling steel pipe 13 obtained in the previous step, and with the lower roller lifting device 7 in the same position and lifting height, assemble the lower straightening roller 3 according to the drawings, and measure the height difference X between the top surface of the tooling steel pipe 13 and the top surface of the lower straightening roller. Then, b (top surface elevation of the lower straightening roller) = a (top surface elevation of the tooling steel pipe) + X (height difference).

[0040] The third step is to automatically set the origin. Because when the straightener 71 was initially designed, the lower roller lifting device 7, when the lifting machine 71 is at its lowest position (i.e., at 0 stroke), is lower than the lowest position during normal straightening operation, a margin of 20mm is generally allowed. Therefore, the origin is set at +10mm of the lifting machine 71's stroke. This satisfies the normal working stroke while preventing the lifting machine 71 from damaging the equipment by repeatedly lowering to 0 stroke or lower. The limit position at +5mm of the lifting machine 71's stroke can be set as the lower limit position; the limit position ensures that the machine stops at this point.

[0041] The parallelism check for each set of lower straightening rollers 3 includes the following process: Because the flatness of the five sets of V-shaped frames 73 for the lower roller lifting device is guaranteed before the equipment leaves the factory, only the parallelism of each set of lower straightening rollers 3 needs to be checked at the user's site. The adjustment of the tooling and the top surface elevation of the lower straightening rollers is the same as before. The first tooling steel pipe is placed in the first set of V-shaped frames of the lower roller lifting device 7, and the second steel pipe is placed in the second, third, fourth and fifth sets of V-shaped frames respectively. The data of each set is measured with an outside micrometer. Two values ​​are measured for each set, located at the positions of the V-shaped frames 73 at both ends of the tooling steel pipe 13. The measured values ​​are compared with the theoretical values.

[0042] Specifically, the first tooling steel pipe used in step one is placed on the V-shaped frame 73 corresponding to the first group of lower straightening rollers, and the second tooling steel pipe is placed on the V-shaped frame 73 corresponding to the second group of lower straightening rollers. Then, the outer diameter of any tooling steel pipe 13 is measured as d using an outside micrometer, and the distance C between two tooling steel pipes 13 is measured using an inside micrometer, so that the distance between two adjacent lower straightening rollers 73 is P. Next, the second tooling steel pipe is placed on the V-shaped frame 73 corresponding to the third, fourth and fifth groups of lower straightening rollers in sequence, and the distance between the first tooling steel pipe and the second tooling steel pipe is measured as the actual distance. The theoretical distance between the first tooling steel pipe and the second tooling steel pipe corresponding to the Nth group of lower straightening rollers is C + (N-2)P. That is, when the second tooling steel pipe is placed on the V-shaped frame 73 corresponding to the third group of lower straightening rollers, the theoretical distance between the first tooling steel pipe and the second tooling steel pipe corresponding to the third group of lower straightening rollers is C+P; when the second tooling steel pipe is placed on the V-shaped frame 73 corresponding to the fourth group of lower straightening rollers, the theoretical distance between the first tooling steel pipe and the second tooling steel pipe corresponding to the fourth group of lower straightening rollers is C+2P; when the second tooling steel pipe is placed on the V-shaped frame 73 corresponding to the fifth group of lower straightening rollers, the theoretical distance between the first tooling steel pipe and the second tooling steel pipe corresponding to the fifth group of lower straightening rollers is C+3P. Here, N is a positive integer ≥ 2. Finally, the measured distance is compared with the theoretical distance, ensuring that the error between the two is ≤ 0.1mm, thus guaranteeing that the parallelism of the multiple groups of lower straightening rollers 3 remains consistent.

[0043] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0044] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

Claims

1. A method for installing, debugging, and testing a multi-line straightening machine, characterized in that, Includes the following steps: Step 1: Use the tooling steel pipe (13) as a reference tool, place it on the V-shaped frame of the lower roller lifting device (7), measure the top elevation of the tooling steel pipe (13), and make the top elevations of both ends of the tooling steel pipe (13) consistent. Step 2: Convert the top surface elevation of the tooling steel pipe (13) to the top surface elevation of the lower straightening roller (3); Step 3: Set the origin of motion of the lower roller lifting device (7) to the position of elevator stroke + 5mm, and configure two-level safety control; Step 4: Use the tooling steel pipe (13) from Step 1 as a reference tool to ensure that the parallelism of multiple sets of lower straightening rollers (3) remains consistent.

2. The installation, debugging, and testing method for the multi-line straightening machine according to claim 1, characterized in that, The cross-sectional dimensions of the tooling steel pipe (13) are Φ300mm~Φ420mm, and the number of tooling steel pipes (13) is at least 2.

3. The installation, debugging, and testing method for the multi-line straightening machine according to claim 1, characterized in that, The specific steps in step one to make the top surface elevations of both ends of the tooling steel pipe (13) consistent include: First, place the tooling steel pipe (13) on the V-shaped frame (73) so that the tooling steel pipe (13) fits against the inclined surface of the V-shaped frame (73); then, use a theodolite to detect the top surface elevation of both ends of the tooling steel pipe (13). If the top surface elevations of both ends are inconsistent, calculate the difference between the two; finally, drive the synchronous shaft (72) connected to the reduction motor (74) to adjust the height of multiple sets of V-shaped frames (73) so that the top surface elevation of the tooling steel pipe (13) supported by each set of V-shaped frames (73) is consistent.

4. The installation, debugging, and testing method for the multi-line straightening machine according to claim 3, characterized in that, During the process of adjusting the height of multiple V-shaped frames (73) by connecting a geared motor (74) to the synchronous shaft (72), the position when the travel of the elevator (71) is >0 is taken as the starting point, and the elevator is gradually moved to the lowest operating limit. The movement limit is the travel of the elevator (71) at 0 ± 0.5 mm.

5. The installation, debugging, and testing method for the multi-line straightening machine according to claim 1, characterized in that, In step two, the top surface elevation of the tooling steel pipe (13) is a, and the height difference between the top surface of the tooling steel pipe (13) and the top surface of the lower straightening roller (3) is X. Then the top surface elevation of the lower straightening roller (3) is b = a + X.

6. The installation, debugging, and testing method for the multi-line straightening machine according to claim 1, characterized in that, The two-level security control described in step three includes: First-level control point: Trigger a deceleration signal at the +10mm travel point to control the geared motor (74) to run at 50% of the rated speed; Second-level limit position: An emergency stop signal is triggered at the +5mm travel point, cutting off the drive power.

7. The installation, debugging, and testing method for the multi-line straightening machine according to claim 1, characterized in that, Step four includes the following specific steps: First, place the first tooling steel pipe on the V-shaped frame (73) corresponding to the first set of lower straightening rollers, and then place the second tooling steel pipe on the V-shaped frame (73) corresponding to the second set of lower straightening rollers; then, use an outside micrometer to measure the outside diameter d of any tooling steel pipe (13), and then use an inside micrometer to measure the distance C between the two tooling steel pipes (13), thus obtaining the distance P between the rollers of two adjacent lower straightening rollers (3); then, place the second tooling steel pipe sequentially on its... On the V-shaped frame (73) corresponding to the lower straightening roller (3), the distance between the first tooling steel pipe and the second tooling steel pipe is measured as the actual distance. The theoretical distance between the first tooling steel pipe and the second tooling steel pipe corresponding to N lower straightening rollers (3) is C+(N-2)P, where N is a positive integer ≥2. Finally, the actual distance is compared with the theoretical distance to ensure that the error between the two is ≤0.1mm, so as to ensure that the parallelism of multiple lower straightening rollers (3) remains consistent.

8. The installation, debugging, and testing method for the multi-line straightening machine according to claim 7, characterized in that, The actual distance between the first tooling steel pipe and the second tooling steel pipe needs to be measured at different positions, and the two sets of data are compared with the theoretical distance.

Images