Methods for correcting internal combustion engine partitions

Abstract

This disclosure provides a method for correcting a partition plate of an internal combustion engine, belonging to the field of machining technology. The correction method includes: assembling the partition plate onto a pressing assembly, the pressing assembly including a base, a lower pressing member, and an anti-pressure pad assembly; the partition plate is located on the base, the lower pressing member is suspended above the partition plate, and the anti-pressure pad assembly is located on the base, with the top of the anti-pressure pad assembly spaced apart from the bottom of the inner ring in the partition plate; detecting the actual height difference between the top of the inner ring and the top of the outer ring in the partition plate; controlling the lower pressing member to move downwards multiple times to press down on the inner ring; after each downward press, ensuring that the bottom of the inner ring is spaced apart from the anti-pressure pad assembly, and detecting the actual height difference until the difference between the actual height difference and the theoretical height difference is less than a threshold. This disclosure can improve the machining efficiency of internal combustion engine partition plates.

Description

Technical Field

[0001] This disclosure belongs to the field of machining technology, and specifically relates to a method for correcting the partition of an internal combustion engine. Background Technology

[0002] A gas turbine is an internal combustion engine that uses a continuously flowing gas as the working fluid to drive a high-speed rotating impeller, converting the energy of fuel into useful work. The diaphragm is one of the main components of the gas turbine's casing. The diaphragm consists of a body and a conical body. The body includes an inner ring and an irregularly shaped outer ring. The outer ring is located outside the inner ring and has a double-layer structure, with its inner layer connected to the outer wall of the inner ring near the top. The conical body is located within the double-layer structure of the outer ring, and its two ends are welded to the outer ring. Because the diaphragm is a thin-walled shell structure with poor rigidity, the inner ring often deforms after manufacturing, causing its top to shift towards the top of the outer ring. This reduces the height difference between the top of the inner and outer rings, so the diaphragm needs to be corrected after processing.

[0003] In related technologies, when aligning the partition, welding is typically performed on the bottom end face of the inner ring to ensure machining allowance, and then the top end face of the inner ring is cut to ensure the height difference meets the requirements.

[0004] However, during the welding process, due to the large amount of welding, defects such as porosity and lack of fusion are easily generated, which may even cause further deformation of the inner ring, resulting in low processing efficiency and precision of the partition. Summary of the Invention

[0005] This disclosure provides a method for correcting an internal combustion engine partition, which can improve the correction accuracy and processing efficiency of the partition. The technical solution is as follows:

[0006] This disclosure provides a method for calibrating a partition in an internal combustion engine. The method includes: assembling the partition onto a pressing assembly, the pressing assembly including a base, a lower pressing member, and an anti-pressure pad assembly; the partition being located on the base, the lower pressing member suspended above the partition, and the anti-pressure pad assembly being located on the base, with the top of the anti-pressure pad assembly spaced apart from the bottom of the inner ring in the partition; detecting the actual height difference between the top of the inner ring and the top of the outer ring in the partition; controlling the lower pressing member to move downwards multiple times to press down on the inner ring; after each downward press, ensuring that the bottom of the inner ring is spaced apart from the anti-pressure pad assembly, and detecting the actual height difference until the difference between the actual height difference and the theoretical height difference is less than a threshold value.

[0007] In another implementation of this disclosure, the base includes a coaxially arranged central hole and a positioning ring groove, the positioning ring groove surrounding the central hole, and the base is disposed on the working platform of the bending machine; the pressing component includes a squeegee, the squeegee being connected to the die sleeve of the bending machine and suspended on the base, the squeegee being located on the axial section of the central hole; the step of assembling the partition plate onto the pressing assembly includes: placing the bottom of the body of the partition plate in the positioning ring groove, such that the inner ring is coaxial with the central hole.

[0008] In another implementation of this disclosure, the method further includes: removing the anti-pressure pad assembly and lowering the stab to contact the base before assembling the partition plate onto the pressing assembly; measuring a first distance L1 from the first hole wall of the central hole to the first side of the stab, and measuring a second distance L2 from the second hole wall of the central hole to the second side of the stab, wherein the first hole wall and the second hole wall are symmetrical about the axial section of the central hole, the first side and the second side of the stab are opposite sides of the stab in the thickness direction, and the first side of the stab is opposite to the first hole wall; adjusting the base so that the first distance and the second distance are equal, and making the axis of the central hole perpendicular to the working platform.

[0009] In another implementation of this disclosure, controlling the pressing member to move downwards repeatedly to press down the top of the inner ring includes: arranging a pressure ring on the top of the inner ring, the pressure ring being located between the piercing blade and the inner ring, the surface of the pressure ring having multiple pressing lines intersecting at the center of the pressure ring, and the multiple pressing lines dividing the pressure ring into multiple equally sized sectors; controlling the folding machine to move the piercing blade downwards and contact the pressure ring; adjusting the relative position of the partition and the piercing blade so that the projection of the piercing blade along the axial direction of the pressure ring on the pressure ring is located on a target pressing line, the target pressing line being any one of the multiple pressing lines; controlling the folding machine to move the piercing blade downwards until the difference between the actual height difference and the theoretical height difference corresponding to the two ends of the top of the inner ring at the target pressing line is less than a threshold.

[0010] In another implementation of this disclosure, the anti-pressure pad assembly includes an anti-pressure pad plate located on the base, the bottom of the anti-pressure pad plate covering the central hole, and the anti-pressure pad plate being a plastic structural component.

[0011] In another implementation of this disclosure, the anti-pressure pad assembly further includes a multi-layer gasket layer; the multi-layer gasket layer is stacked along the axis of the inner ring, and each gasket layer includes a plurality of gaskets circumferentially spaced with the axis of the inner ring as the axis.

[0012] In another implementation of this disclosure, the thickness of the gasket in each of the multilayer gaskets gradually increases along the direction from the top to the bottom of the inner ring.

[0013] In another implementation of this disclosure, the plurality of gaskets are arranged in pairs, with the two gaskets in a pair located on one of the pressure lines.

[0014] In another implementation of this disclosure, controlling the folding machine to move the piercing blade downward until the difference between the actual height difference and the theoretical height difference at the two ends of the target pressure line corresponding to the top of the inner ring is less than a threshold also includes: during the downward movement of the piercing blade, if the bottom of the inner ring contacts the topmost pad, the topmost layer of pads is removed.

[0015] In another implementation of this disclosure, detecting the actual height difference between the top of the inner ring and the top of the outer ring in the partition includes: arranging a detection plate on the top of the outer ring of the partition; positioning a steel ruler on the top of the inner ring, with the length direction of the steel ruler perpendicular to the detection plate; and measuring the distance from the top of the inner ring to the bottom of the detection plate using the steel ruler.

[0016] The beneficial effects of the technical solutions provided in this disclosure are:

[0017] When the correction method provided in this embodiment is used to correct the partition, the actual height difference between the top of the inner ring and the top of the outer ring in the partition meets the requirements by pressing down. This avoids the use of welding, greatly simplifies the correction process, and also avoids new deformation caused by welding.

[0018] Meanwhile, since the pressure on the top of the inner ring is achieved by controlling the pressure component to press down multiple times, and the actual height difference is remeasured after each press, and the downward movement of the pressure component does not exceed the threshold, the height deformation of the partition can be controlled, so that the correction amount after pressing does not exceed the value, greatly improving the correction accuracy and efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the partition provided in an embodiment of the present disclosure;

[0021] Figure 2 This is a method for correcting a partition according to an embodiment of the present disclosure;

[0022] Figure 3 This is a schematic diagram illustrating the correction principle of the partition.

[0023] Figure 4 This is a schematic diagram of the squeegee in a folding machine;

[0024] Figure 5 This is another method for correcting a partition according to an embodiment of the present disclosure;

[0025] Figure 6 A schematic diagram of the base being assembled in a bending machine;

[0026] Figure 7 A schematic diagram of the partition assembly on the base;

[0027] Figure 8 This is a schematic diagram showing the actual height difference between the top of the inner ring and the top of the outer ring.

[0028] Figure 9 This is a schematic diagram of the assembly structure during partition alignment.

[0029] Figure 10 This is a schematic diagram of the arrangement of the pressure lines;

[0030] Figure 11 for Figure 9 Side view;

[0031] Figure 12 This is a schematic diagram showing the actual height difference of the partition placed on the platform.

[0032] The symbols in the diagram represent the following meanings:

[0033] 1. Body; 11. Inner ring; 12. Outer ring; 2. Conical body;

[0034] 100. Base; 101. Center hole; 102. Positioning ring groove; 103. Clearance groove;

[0035] 200. Pressing part; 202. Blade; 203. Mold sleeve; 2030. Blade hole; 204. Lower mold; 205. Roller; 206. Working platform;

[0036] 300. Anti-pressure pad assembly; 301. Anti-pressure pad plate; 302. Gasket layer;

[0037] 400, testing plate; 401, steel ruler; 500, pressure ring; 501, lower pressure line. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of this disclosure clearer, the embodiments of this disclosure will be described in further detail below with reference to the accompanying drawings.

[0039] A gas turbine is an internal combustion engine that uses a continuously flowing gas as its working fluid to drive a high-speed rotating impeller, converting the energy of fuel into useful work. The diaphragm in a gas turbine is one of the main components of the turbine's casing.

[0040] Figure 1 This is a schematic diagram of the structure of the partition provided in the embodiments of this disclosure, combined with... Figure 1 The partition includes a body 1 and a conical body 2. The body 1 includes an inner ring 11 and an irregularly shaped outer ring 12. The outer ring 12 is located outside the inner ring 11 and has a double-layer structure. The inner layer of the outer ring 12 is connected to the outer wall of the inner ring 11 near its first end. The conical body 2 is located inside the double-layer structure of the outer ring 12, and both ends of the conical body 2 are welded to the outer ring 12. The first end of the inner ring 11 and the first end of the outer ring 12 are both located on the same side of the conical body 2.

[0041] Because the partition is a thin-walled shell structure with poor rigidity, after manufacturing, the inner ring 11 of the main body 1 often deforms towards the first end, reducing the distance between the end of the first end of the inner ring 11 (i.e., the top of the inner ring 11) and the end of the first end of the outer ring 12 (i.e., the top of the outer ring). Figure 1 The height difference H between the top of the inner ring and the top of the outer ring decreases. Therefore, the partition needs to be corrected after processing.

[0042] This disclosure provides a method for correcting the partition of an internal combustion engine, such as... Figure 2 As shown, the method for correcting the internal combustion engine partition includes:

[0043] S201: Assemble the partition onto the pressing assembly.

[0044] The pressing assembly includes a base 100, a lower pressing member 200, and an anti-pressure pad assembly 300. The partition is positioned on the base 100, the lower pressing member 200 is suspended above the partition, and the anti-pressure pad assembly 300 is located on the base 100, with the top of the anti-pressure pad assembly 300 spaced apart from the bottom of the inner ring.

[0045] S202: Detect the actual height difference between the top of the inner ring and the top of the outer ring in the partition.

[0046] S203: Control the pressing component to move down continuously multiple times to press down the inner ring.

[0047] S204: After each pressing of the pressing component, the bottom of the inner ring is spaced from the anti-pressure pad assembly, and the actual height difference is detected until the difference between the actual height difference and the theoretical height difference is less than the threshold.

[0048] When the correction method provided in this embodiment is used to correct the partition, the actual height difference between the top of the inner ring and the top of the outer ring in the partition meets the requirements by pressing down. This avoids the use of welding, greatly simplifies the correction process, and also avoids new deformation caused by welding.

[0049] Meanwhile, since the pressure on the top of the inner ring is achieved by controlling the pressure component to press down multiple times, and the actual height difference is re-detected after each press, the height deformation of the partition can be controlled, ensuring that the correction amount after pressing does not exceed the value, thus greatly improving the correction accuracy and efficiency.

[0050] In this embodiment, in order to further ensure that the correction amount does not exceed the tolerance, the pressure member is positioned at a value not greater than the threshold each time it is pressed down.

[0051] Figure 3 This is a schematic diagram illustrating the correction principle of the partition, combined with... Figure 3 In this embodiment, the calibration is performed by pressing down on the inner ring. That is, the base 100 positions the partition during the pressing process. A pressing member is arranged on the top of the inner ring 11, and calibration is performed by pressing down on the top of the inner ring 11 with the pressing member.

[0052] The base 100 includes a coaxially arranged central hole 101 and a positioning ring groove 102, with the positioning ring groove 102 surrounding the central hole 101. The positioning ring groove 102 is used to limit the bottom of the outer ring 12 in the partition, preventing radial movement of the partition during downward correction. The central hole 101 serves as a reference, ensuring that the pressing member 200 is located at the center of the partition during correction, thus ensuring uniform force on the partition.

[0053] In addition, in order to prevent interference when the partition is arranged on the base 100, the base 100 has an annular clearance groove 103, which is coaxially wrapped around the positioning ring groove 102.

[0054] In this embodiment, in order to simplify the tools used when pressing down, an off-the-shelf folding machine is selected.

[0055] Figure 4 This is a schematic diagram of the squeegee in a folding machine, combined with... Figure 4 The pressing component 200 includes a cleaver 202, which is connected to the die sleeve 203 of the bending machine and suspended on the base 100. The cleaver 202 is located on the axial section of the center hole 101.

[0056] The die sleeve 203 is arranged correspondingly to the lower die 204. By controlling the movement of the die sleeve 203 toward or away from the lower die 204, the piercing blade 202 can be moved back and forth. The back and forth movement of the piercing blade 202 can press down on the inner ring.

[0057] The lower die 204 has a piercing hole 2030. After the piercing 202 moves downward, it can be partially located in the piercing hole 2030. The top of the lower die 204 is a planar working platform 206, which can be used to accommodate the base 100, etc. When the piercing 202 is pressed down, the distance L0 between the center line of the piercing 202 and the two edges of the piercing hole 2030 should be the same, that is, the piercing 202 should be located on the axial section of the piercing hole 2030.

[0058] The lower die 204 is connected to the frame of the bending machine. The top of the frame has rollers 205, which can move the base 100 on the work platform 206.

[0059] On the other hand, embodiments of this disclosure also provide another method for correcting the internal combustion engine partition, such as... Figure 5 As shown, the correction method includes:

[0060] S501: The cleaver is suspended above the base, and the cleaver is located on the axial section of the center hole.

[0061] In this embodiment, the base 100 is hoisted onto the working platform 206 of the bending machine, and the base 100 is moved to the center of the working platform 206 by the rollers 205, so that the cleaver 202 is suspended above the base 100 and the cleaver 202 is located on the axial section of the center hole 101.

[0062] S502: Lower the knife until it contacts the base.

[0063] By controlling the knife-splitting machine, the knife moves down and crosses the center hole 101 in the base 100, and contacts the base around the center hole.

[0064] S503: Measure the first distance L1 from the first wall of the center hole to the first side of the piercing tool, and measure the second distance L2 from the second wall of the center hole to the second side of the piercing tool.

[0065] The first hole wall and the second hole wall are symmetrical about the axial section of the central hole. The first side and the second side of the stab 202 are opposite sides of the stab in the thickness direction, and the first side of the stab is opposite to the first hole wall.

[0066] S504: Adjust the base so that the first distance and the second distance are equal, and make the axis of the center hole perpendicular to the working platform.

[0067] Figure 6 This is a structural diagram of the base being assembled in the bending machine, combined with... Figure 6Move the base 100 onto the working platform 206 of the bending machine, ensuring the opening of the positioning ring groove 102 faces upwards. To position the cleaver 202 in the center of the base 100, measure the first distance L1 from the first wall of the center hole 101 to the first side of the cleaver using a steel ruler 401, and measure the second distance L2 from the second wall of the center hole to the second side of the cleaver. If L1 = L2, then the cleaver is positioned in the center of the base 100.

[0068] S505: Assemble the partition onto the pressing assembly.

[0069] Figure 7 This is a structural diagram of the partition being assembled on the base, combined with... Figure 7 The base 100 is used to position the partition and prevent radial movement of the partition during downward pressure correction. The positioning annular groove 102 is used to limit the bottom of the outer ring of the partition. The center hole 101 serves as a reference to ensure that the pressing element is centered on the partition during correction, resulting in uniform force on the partition.

[0070] Optionally, step S505 can be implemented in the following manner:

[0071] First, the bottom of the partition body is positioned in the positioning ring groove 102, and the inner ring is coaxial with the center hole 101.

[0072] Since the bottom of the outer ring of the partition protrudes outside the inner ring, when positioning the partition, the bottom of the outer ring can be limited in the positioning ring groove 102, while ensuring that the bottom of the inner ring does not contact the base 100. In this way, the partition can be corrected by pressing down the top of the inner ring, causing the inner ring to move down relative to the outer ring.

[0073] Then, an anti-pressure pad assembly is installed between the bottom of the inner ring and the base, with the top of the anti-pressure pad assembly spaced apart from the bottom of the inner ring.

[0074] In this embodiment, in order to prevent excessive pressure during the pressing of the inner ring, which could cause significant deformation of the parts, an anti-pressure pad assembly is provided between the bottom of the inner ring and the base.

[0075] See also Figure 7 The anti-pressure pad assembly 300 includes an anti-pressure pad plate 301. The anti-pressure pad plate 301 is located on the base 100, and the bottom of the anti-pressure pad plate 301 covers the central hole 101. The anti-pressure pad plate 301 is spaced from the bottom of the inner ring. The anti-pressure pad plate 301 is a plastic structural component.

[0076] In addition, in order to control the amount of pressure applied each time, the anti-pressure pad assembly 300 also includes a multi-layer gasket layer 302. The multi-layer gasket layer 302 is stacked on the anti-pressure pad plate 301 along the axis of the inner ring. Each gasket layer 302 includes multiple gaskets that are circumferentially spaced with the axis of the inner ring 11 as the axis.

[0077] In other words, the anti-pinch pad assembly can be arranged in the following way:

[0078] (1) An anti-pressure pad 301 is arranged on the base 100. The bottom of the anti-pressure pad 301 covers the center hole 101, and the anti-pressure pad is spaced apart from the bottom of the inner ring.

[0079] (2) Multiple gasket layers 302 are arranged on the anti-pressure gasket. The multiple gasket layers 302 are stacked on the anti-pressure gasket 301 along the axis of the inner ring. Each gasket layer 302 includes multiple gaskets that are circumferentially spaced with the axis of the inner ring as the axis.

[0080] Optionally, the thickness of the gasket in each gasket layer 302 gradually increases along the direction from the top to the bottom of the inner ring.

[0081] Because the partition is made of ultra-high temperature resistant nickel-based alloy (GH3039), during the downward pressure correction, the partition first undergoes elastic deformation, and then plastic deformation occurs after the elastic deformation ends. The elastic deformation quickly rebounds and eliminates the deformation once the downward pressure is removed. Therefore, when correcting and pressing down on the partition, the initial downward displacement of the stab is small (the partition begins elastic deformation), and the subsequent downward displacement is larger (plastic deformation begins after the elastic deformation of the partition ends). That is, the stab can be pressed down in a gradually increasing order of downward displacement. During the pressing process, to maintain a gap between the bottom of the partition and the top layer gasket, the top layer gasket is removed after each press before the stab is controlled to continue pressing down. If the bottom of the partition contacts the top layer gasket during pressing, the stab is stopped, the top layer gasket is removed, and then the stab is controlled to continue pressing down.

[0082] By arranging the shims as described above, since the piercing blade does not spring back during subsequent downward pressure but undergoes plastic deformation, the gap between the bottom of the partition and the top of the shim layer gradually increases after removing the top shim during subsequent downward pressure. Correspondingly, the space for the piercing blade's subsequent downward pressure displacement gradually increases, so that even if the piercing blade's subsequent downward pressure displacement is greater than the previous downward pressure displacement, it will not contact the top shim, avoiding frequent removal of the top shim and increasing the calibration efficiency.

[0083] At the same time, the movement of the stabbing blade can be referenced by the top layer shim. When the bottom of the partition plate contacts the top layer shim, the stabbing blade can be stopped, so that the stabbing blade will not continue to press down, causing the correction amount of the partition plate to exceed the theoretical value.

[0084] In this embodiment, the thickness of the gasket can be 1mm, 2mm, 3mm, 4mm, 5mm, etc.

[0085] S506: Detect the actual height difference between the top of the inner ring and the top of the outer ring in the partition.

[0086] In this embodiment, since the partition is an irregularly shaped structural component, a tool is needed to detect the actual height difference between the top of the inner ring and the top of the outer ring.

[0087] Furthermore, since the partition deforms after processing, the top end face of the deformed inner ring may not be on the same plane. Therefore, when measuring the actual height difference, it is determined by measuring different radial locations on the top of the inner ring. Additionally, because a piercing tool is used to press down on the top of the inner ring during calibration, and the thickness of the piercing tool is limited, the contact area between the piercing tool 202 and the inner ring is also limited with each press. Therefore, the area of ​​the downward pressure on the inner ring is limited. Thus, it is necessary to press the inner ring multiple times with the piercing tool. To clearly define the calibration status after each press, the actual height difference can be obtained by measuring the contact points between the piercing tool and the inner ring.

[0088] Optionally, step S506 includes:

[0089] 5061: A detection plate 400 is arranged on the top of the outer ring, the detection plate is in contact with the top of the outer ring and is in a horizontal state.

[0090] 5062: Position the steel ruler 401 on the top of the inner ring, with the length direction of the steel ruler 401 perpendicular to the detection plate 400.

[0091] 5063: Measure the distance from the top of the inner ring to the bottom of the detection plate 400 using steel ruler 401.

[0092] Figure 8 This is a schematic diagram illustrating the detection of the actual height difference between the top of the inner ring and the top of the outer ring, combined with... Figure 8 During testing, since there is no relative reference between the inner and outer rings, a testing plate 400 is placed on top of the outer ring for ease of testing. The testing plate 400 is attached to the top of the outer ring.

[0093] The actual height difference between the top of the inner ring and the top of the outer ring is determined by the distance between the detection plate 400 and the top of the inner ring. Furthermore, a steel ruler 401 can be used to easily and directly measure the distance between the detection plate 400 and the top of the inner ring.

[0094] S507: A pressure ring is placed on the top of the inner ring.

[0095] Figure 9 This is a schematic diagram of the assembly structure during partition alignment, combined with... Figure 9 To prevent the inner ring from being damaged by the stab, the pressing assembly also includes a pressure ring 500. The pressure ring 500 is located on top of the inner ring 11 and is coaxially arranged with the inner ring 11.

[0096] The pressure ring 500 is placed directly on top of the inner ring 11, and the inner diameter of the pressure ring 500 is smaller than the inner diameter of the inner ring.

[0097] Figure 10 See the schematic diagram of the pressure line layout. Figure 10 The pressure ring 500 is located between the stab 202 and the inner ring. The surface of the pressure ring 500 is provided with multiple downward pressure lines 501. The multiple downward pressure lines 501 intersect at the center of the pressure ring, and the multiple downward pressure lines 501 divide the pressure ring 500 into multiple equally sized fan shapes.

[0098] In this embodiment, there are four pressure lines 501, namely line segments AE, BF, CG, and DH. Thus, each time pressure is applied, the stabbing knife 202 is positioned on one of the corresponding pressure lines 501. Correspondingly, in the aforementioned steps, the actual height difference can be detected by measuring the actual height difference corresponding to the location of each pressure line 501.

[0099] S508: Controls the bending machine so that the cutting blade moves down and contacts the pressure ring.

[0100] S509: Adjust the relative position of the partition and the stabbing knife so that the projection of the stabbing knife on the pressure ring along the axial direction of the pressure ring is located on the target pressure line, which is any one of multiple pressure lines.

[0101] During calibration, a piercing tool is used to press down on the top of the inner ring through the pressure ring 500. Due to the limited thickness of the piercing tool, the contact area between the piercing tool 202 and the pressure ring 500 is also limited each time the piercing tool presses down. Therefore, the pressure ring 500 experiences a limited area of ​​downward pressure each time the piercing tool presses down on the inner ring, only pressing down on one of the pressure lines 501. Thus, multiple presses along different pressure lines are required.

[0102] S510: Controls the folding machine to move the squeegee downwards until the difference between the actual height difference and the theoretical height difference at the two ends of the target pressure line of the top of the inner ring is less than the threshold.

[0103] In this embodiment, the folding machine is controlled to move the kerf downwards. The actual height difference between the top of the inner ring and the top of the outer ring is detected. If the actual height difference increases, but the difference from the theoretical height difference is greater than a threshold, or if the actual height difference does not increase, the folding machine is controlled to move the kerf downwards again. During the downward movement of the kerf, if the bottom of the inner ring contacts the topmost pad, the topmost pad needs to be removed.

[0104] Figure 11 for Figure 9 See the side view. Figure 11 First, align the cleaver with the lower pressure line AE. After the cleaver 202 contacts the lower pressure line AE of the pressure ring 500, adjust the lower pressure of the cleaver 202 through the CNC program of the bending machine. The cleaver 202 presses down 1mm each time (that is, the threshold). After the bending machine releases the pressure, raise the cleaver and remove the pressure ring 500.

[0105] Measuring height H 实际 If the height remains unchanged, press down another 1mm from the original pressing height and measure the actual height H. 实际 until height H 实际 The height H changes and increases if the part's lowered position has contacted the top layer gasket. 实际 No change or failure to reach the required correction value (theoretical value H) 理论 If the problem persists, remove the top gasket and continue adjusting the downward pressure, depending on the height H. 实际 The change determines whether to remove the remaining thickness (2mm-5mm) of gaskets; if the final |H 实际 -H 理论 If |≤1mm, stop pressing down and record the vertical coordinate Y1 value of the stabbing knife 202 at this time.

[0106] Then rotate the partition approximately 45° so that the length direction of the piercing blade is aligned with the BF downward pressure line. Continue to correct according to the above steps. The parameter coordinate Y2 value after the piercing blade moves down is referenced to the above coordinate Y1, until |H 实际 -H 理论 |≤1mm, the subsequent CG undercoating and DH undercoating shall be carried out in the same manner.

[0107] S511: Place the partition on the platform and re-detect the actual height difference.

[0108] After calibration, remove the partition from the base and, in a free state, measure the actual height difference of the partition.

[0109] Figure 12 This is a schematic diagram illustrating the detection of the actual height difference of the partition placed on the platform. (See attached diagram) Figure 12 The partition was placed directly on the platform, and then the actual height difference was re-measured using a steel ruler 401 and a measuring plate 400. If H实际 A small amount of rebound occurred, and |H 实际 -H 理论 If the thickness is ≥1mm, continue the correction on the folding machine according to step S305-306 until the partition is in a free state. 实际 -H 理论 |≤1mm meets the requirements.

[0110] The above description is merely an optional embodiment of this disclosure and is not intended to limit this disclosure. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the protection scope of this disclosure.

Claims

1. A method for correcting a partition plate in an internal combustion engine, characterized in that, The correction method includes: The partition is assembled onto a pressing assembly, which includes a base (100), a lower pressing member (200), and a pressure-resistant pad assembly (300). The partition is located on the base (100), the lower pressing member (200) is suspended above the partition, and the pressure-resistant pad assembly (300) is located on the base (100), with the top of the pressure-resistant pad assembly (300) spaced from the bottom of the inner ring in the partition. The base (100) includes a coaxial... A central hole (101) and a positioning ring groove (102) are arranged, the positioning ring groove (102) surrounds the central hole (101), the base (100) is set on the working platform of the bending machine, the pressing part (200) includes a stab (202), the stab (202) is connected to the die sleeve (203) of the bending machine and suspended on the base (100), the stab (202) is located on the axial section of the central hole (101); Detect the actual height difference between the top of the inner ring and the top of the outer ring in the partition; The pressing member is controlled to move downwards multiple times to press down on the top of the inner ring; After each downward press of the pressing member, the bottom of the inner ring is spaced apart from the anti-pressure pad assembly (300), and the actual height difference is detected until the difference between the actual height difference and the theoretical height difference is less than a threshold. The step of assembling the partition plate onto the pressing assembly includes: placing the bottom of the body of the partition plate in the positioning ring groove, such that the inner ring is coaxial with the center hole; Before assembling the partition onto the pressing assembly, the method further includes: removing the anti-pressure pad assembly (300) and lowering the stabbing knife to contact the base; The first distance L1 from the first hole wall of the central hole to the first side of the stabbing knife is measured, and the second distance L2 from the second hole wall of the central hole to the second side of the stabbing knife is measured. The first hole wall and the second hole wall are symmetrical about the axis of the central hole. The first side and the second side of the stabbing knife are opposite sides of the stabbing knife in the thickness direction, and the first side of the stabbing knife is opposite to the first hole wall. Adjust the base so that the first distance L1 and the second distance L2 are equal, and make the axis of the center hole perpendicular to the working platform.

2. The correction method according to claim 1, characterized in that, The control of the pressing member to move downwards multiple times to press down on the top of the inner ring includes: A pressure ring is arranged on the top of the inner ring. The pressure ring is located between the stabbing knife and the inner ring. The surface of the pressure ring is provided with multiple downward pressure lines. The multiple downward pressure lines intersect at the center of the pressure ring and divide the pressure ring into multiple equally sized sectors. Control the folding machine so that the squeegee moves down and contacts the pressure ring; Adjust the relative position of the partition and the stabbing knife so that the projection of the stabbing knife on the pressure ring along the axial direction of the pressure ring is located on the target pressure line, where the target pressure line is any one of the plurality of pressure lines; Control the folding machine so that the burr moves downward until the difference between the actual height difference and the theoretical height difference at the two ends of the target pressure line of the top of the inner ring is less than a threshold.

3. The correction method according to claim 2, characterized in that, The anti-pressure pad assembly (300) includes an anti-pressure pad plate (301). The pressure relief pad (301) is located on the base (100), and the bottom of the pressure relief pad (301) covers the central hole (101). The pressure relief pad (301) is a plastic structural component.

4. The correction method according to claim 3, characterized in that, The anti-pressure pad assembly (300) also includes a multi-layer gasket layer (302); The multi-layer gaskets (302) are stacked along the axis of the inner ring (11), and each gasket layer (302) includes a plurality of gaskets circumferentially spaced with the axis of the inner ring (11) as the axis.

5. The correction method according to claim 4, characterized in that, The thickness of the gaskets in each of the multi-layer gaskets (302) gradually increases along the direction from the top to the bottom of the inner ring.

6. The correction method according to claim 5, characterized in that, The plurality of gaskets are arranged in pairs, with the two gaskets in a pair located on one of the pressure lines.

7. The correction method according to claim 6, characterized in that, The method of controlling the folding machine to move the squeegee downwards until the difference between the actual height difference and the theoretical height difference at the two ends of the target pressing line corresponding to the top of the inner ring is less than a threshold also includes: During the downward movement of the stab, if the bottom of the inner ring contacts the topmost pad, the topmost pad is removed.

8. The correction method according to any one of claims 1, 3-7, characterized in that, The detection of the actual height difference between the top of the inner ring and the top of the outer ring in the partition includes: A detection plate (400) is arranged on the top of the outer ring of the partition. Position the steel ruler on the top of the inner ring, with the length direction of the steel ruler perpendicular to the detection plate; The distance from the top of the inner ring to the bottom of the detection plate is measured using the steel ruler.

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