Model selection method, system and terminal of H-shaped steel for mold closing machine body

Abstract

The invention relates to a model selection method, system and terminal of H-shaped steel for a mold closing machine body, and relates to the field of injection molding machines. Determining machining parameters of the main beam according to the model of the fuselage, and obtaining a cross section image of the cross section of the steel; determining the placing posture of the steel according to the section image; determining a thickness parameter of the steel from the section image based on the placement posture; calculating the difference between the thickness parameter and the processing parameter at the corresponding position, and defining the difference as a processing difference; when the machining difference falls into a preset error interval, the steel number is determined according to the section image; and controlling a preset model selection device to mark the steel as qualified steel according to the steel number. The structure has the effects that the structural strength of the mold closing machine body is improved, and the deformation condition of the main beam is reduced.

Description

Technical Field

[0001] The invention relates to the field of injection molding machines, and in particular to a method, system and terminal for selecting H-shaped steel for a mold body. Background Art

[0002] The mold clamping body of the injection molding machine refers to the frame structure on the injection molding machine used to carry the mold clamping parts, connect the hydraulic water circuit, and fix the protective door.

[0003] In the prior art, the mold body generally includes a head plate support plate, a main beam, an oil guide plate, an oil collecting trough, an oil baffle plate and a connecting device, wherein the main beam refers to an I-shaped structure composed of a vertical plate for carrying the mold parts and two upper and lower bottom plates welded together. The strength requirement of the main beam is relatively high. When the mold body is larger, it is necessary to increase the thickness of the main beam vertical plate to carry the heavier mold parts.

[0004] When the thickness of the vertical plate is large, it is difficult to significantly increase the welding volume between the vertical plate and the upper and lower bottom plates, which leads to a decrease in the connection strength between the vertical plate and the upper and lower bottom plates, and further causes deformation of the main beam. Summary of the invention

[0005] In order to improve the structural strength of a mold-clamping fuselage and reduce deformation of a main beam, the present invention provides a method, system and terminal for selecting an H-shaped steel for a mold-clamping fuselage.

[0006] In a first aspect, the present invention provides a method for selecting H-shaped steel for a mold body, which adopts the following technical solution: A method for selecting H-shaped steel for a mold-jointed fuselage comprises: Get the body model of the injection molding machine; Determine the processing parameters of the main beam according to the fuselage model and obtain the cross-sectional image of the steel cross section; Determine the placement of steel based on the cross-sectional image; Determine the thickness parameters of steel from the cross-sectional image based on the placement posture; Calculate the difference between the thickness parameter and the processing parameter at the corresponding position and define it as the processing difference; When the processing difference falls into the preset error range, the steel number is determined based on the cross-sectional image; The steel is marked as qualified steel by controlling the preset selection device according to the steel number; When the processing difference falls into the preset rolling range, the roll series number is determined according to the steel number; The preset roller device is called according to the roller series number, and the processing position is determined according to the processing difference; Determine the roll system parameters according to the roll system number; Determine the roller number according to the processing position and roller system parameters; Determine roller gap based on processing difference and roller system parameters; According to the roller number, the gap of the preset roller device is adjusted according to the roller gap, and the preset roller device is controlled to roll the steel.

[0007] By adopting the above technical scheme, H-shaped steel that meets the requirements is selected according to the parameter requirements of the molded fuselage for the main beam, so that an integrally formed H-shaped steel is used as the main beam, thereby reducing the situation where there are many blocked positions in the middle vertical plate of the main beam after the overall fuselage is assembled and cannot be effectively welded, reducing the deformation of the main beam, and improving the structural strength of the molded fuselage. When there is a small deviation between the parameters required by the existing H-shaped steel and the main beam, the roller spacing in the roller system for processing the H-shaped steel is adjusted according to the parameter requirements of the main beam, and the steel is rolled again through the adjusted roller system to make the parameters of the H-shaped steel meet the parameter requirements of the main beam.

[0008] Optionally, a crack treatment method is also included, and the crack treatment method includes: Based on the situation that the processing difference falls into the preset error range, a steel image of the entire steel is obtained; Judging whether there are crack features on the steel material based on the steel material image; When crack features exist on the steel, the crack location is determined based on the steel image; Determine the detection path according to the crack location; Controlling a preset acoustic wave device to reach the crack position according to the detection path, and controlling the preset acoustic wave device to emit a preset detection acoustic wave; Controlling a preset sound wave device to receive feedback sound waves, and generating structural parameters inside the steel material according to the feedback sound waves; Determine the crack area based on structural parameters; The preset selection device is controlled according to the crack area and steel number to inform the staff.

[0009] By adopting the above technical solution, when cracks exist on the surface of steel, the distribution of cracks inside the steel can be detected by ultrasonic wave, so that the staff can judge the influence of cracks on the strength of steel, thereby improving the control of steel quality and reducing the situation where the strength of the mold body structure is reduced due to the use of low-quality steel.

[0010] Optionally, the crack treatment method further includes: Determine the transverse and longitudinal lengths of the crack on the cross section of the steel material based on the crack area; Determine the damage level of the crack to the steel structure based on the crack location, transverse length and longitudinal length; When the damage level is lower than the preset processing threshold, the impact range of the crack is determined based on the crack area; When the processing difference falls into the preset rolling interval, the rolling number is determined according to the crack position, and the rolling position of the roller device is obtained; When the rolling position falls into the influence interval, the preset roller device is controlled according to the rolling number to cancel the adjustment gap.

[0011] By adopting the above technical solution, when the crack has little impact on the steel structure, the impact range of the crack is delineated according to the distribution of the crack, and the impact range of the roller rolling is reduced, thereby reducing the situation where the roller rolls to the crack and causes the crack to expand.

[0012] Optionally, the crack treatment method further includes: When the damage level is not lower than the preset processing threshold, the extension length of the crack in the length direction of the steel is determined according to the crack area; Controlling a preset cutting device to generate a patch block according to the extension length; Determine the mapping position of the crack on the steel surface according to the crack area; According to the mapping position, the preset fixing device is controlled to adhere the repair block to the mapping position, and the preset roller device is controlled to roll the mapping position of the steel.

[0013] By adopting the above technical solution, when the crack has a greater impact on the steel structure, the repair block and the steel are rolled by rollers so that the repair block is integrated with the steel in the crack affected area, thereby increasing the density of the steel in the crack area and improving the structural strength of the steel.

[0014] Optionally, the crack treatment method further includes: When the damage level is not lower than a preset processing threshold, determining an extension width of the crack at the mapped position based on the mapped position; When the extension width exceeds the preset repair width, the quotient of the extension width and the preset repair width is calculated and rounded up to obtain the repair quantity; Determine the arrangement position according to the mapping position, the extension width and the number of patches; A preset fixing device is controlled according to the arrangement position to arrange the repair blocks of the repair quantity in sequence in the same direction and adhere them to the steel material.

[0015] By adopting the above technical solution, when the crack opening on the steel surface is wider, multiple repair blocks are arranged to cover the crack, so that the repair blocks repeatedly fill the crack, further increasing the density of the steel in the crack area and improving the structural strength of the steel.

[0016] Optionally, the method for generating the patch block includes: Controlling a preset cutting device to cut a preset repair material according to the extension length to form an initial block; Determine the repair direction of the roller device according to the mapped position; Determine the guide angle based on the extension length; The preset cutting device is controlled according to the repair direction and the guide angle to cut the initial block to form a repair block.

[0017] By adopting the above technical solution, the guiding surface is formed by trimming the repair block through the cutting device, thereby reducing the bite angle of the roller when rolling to the repair block, thereby reducing the relative movement of the repair block on the steel during rolling.

[0018] Optionally, the calculation method of the guiding angle includes: A = arctan(μ 1 )-arcsin[-μ 2 *k / √(μ 1 2 +1)]; Where A is the required guidance angle; μ 1 It is the friction coefficient between the repair material and the roller; μ 2 It is the friction coefficient between the repair material and the steel; k is the empirical coefficient.

[0019] In a second aspect, the present application provides a system for selecting H-shaped steel for a mold body, which adopts the following technical solution: A selection system for H-shaped steel for a mold-clamping fuselage, comprising: An acquisition module, used to acquire fuselage model, cross-section image, steel image and rolling position; A memory for storing a program for storing any one of the above-mentioned methods for selecting the H-shaped steel for the mold body; The program in the processor and the memory can be loaded and executed by the processor to implement any of the above-mentioned methods for selecting H-shaped steel for the mold body.

[0020] In a third aspect, the present application provides a smart terminal, which adopts the following technical solution: An intelligent terminal comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and executes any one of the above-mentioned methods for selecting H-shaped steel for a mold body.

[0021] By adopting the above technical scheme, H-shaped steel that meets the requirements is selected according to the parameter requirements of the molded fuselage for the main beam, so that one-piece H-shaped steel is used as the main beam, thereby reducing the situation where there are many blocked positions in the middle vertical plate of the main beam of the overall fuselage after assembly that cannot be effectively welded, reducing the deformation of the main beam, and improving the structural strength of the molded fuselage.

[0022] In summary, the present application includes at least one of the following beneficial technical effects: According to the parameter requirements of the molded fuselage for the main beam, the H-shaped steel that meets the requirements is selected, so that the one-piece H-shaped steel is used as the main beam, thereby reducing the situation where there are many blocked positions in the middle vertical plate of the main beam after the overall fuselage is assembled and cannot be effectively welded, reducing the deformation of the main beam and improving the structural strength of the molded fuselage; When there is a small deviation between the parameters of the existing H-beam and those required by the main beam, the roller spacing in the roller system for processing the H-beam is adjusted according to the parameter requirements of the main beam, and the steel is rolled again through the adjusted roller system to make the parameters of the H-beam meet the parameter requirements of the main beam; When cracks exist on the surface of steel, ultrasonic detection is used to detect the distribution of cracks inside the steel, so that the staff can judge the impact of cracks on the strength of the steel, thereby improving the control of steel quality and reducing the situation where the use of low-quality steel leads to a decrease in the structural strength of the mold body. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of a molded fuselage; Figure 2 It is a structural diagram of the main beam; Figure 3 This is a process for selecting H-beam for molded fuselage Figure 1 ; Figure 4 This is a process for selecting H-beam for molded fuselage Figure 2 ; Figure 5 The process of crack treatment method Figure 1 ; Figure 6 The process of crack treatment method Figure 2 ; Figure 7 The process of crack treatment method Figure 3 ; Figure 8 The process of crack treatment method Figure 4 ; Fig. 9 Is the method for generating patch blocks.

[0024] The names of the parts indicated by the numerical labels in the above drawings are as follows: 1. Head plate support plate; 2. Main beam; 3. Oil guide plate; 4. Oil collecting trough; 5. Oil baffle plate; 6. Upper bottom plate; 7. Vertical plate; 8. Lower bottom plate. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0026] Reference Figure 1 and Figure 2 A mold-matching fuselage includes a head plate support plate 1, a main beam 2, an oil guide plate 3, an oil collecting trough 4 and an oil baffle plate 5, wherein the main beam 2 includes an upper bottom plate 6, a vertical plate 7 and a lower bottom plate 8, the upper bottom plate 6 and the lower bottom plate 8 are arranged in parallel, the vertical plate 7 is vertically arranged between the upper bottom plate 6 and the lower bottom plate 8, and the two ends of the vertical plate 7 are respectively welded to the upper bottom plate 6 and the lower bottom plate 8.

[0027] The present application embodiment discloses a method for selecting H-shaped steel for a molded fuselage, referring to Figure 3 A method for selecting H-shaped steel for a mold body, comprising: Step 100: Obtain the body model of the injection molding machine.

[0028] Different injection molding machines require different sizes of the main beam 2. The fuselage model refers to the model of the injection molding machine. The fuselage model can be pre-set by the staff or obtained through image recognition technology. The method for obtaining the fuselage model is selected by the staff according to actual conditions and will not be elaborated here.

[0029] Step 101: Determine the processing parameters of the main beam according to the fuselage model, and obtain a cross-sectional image of the steel cross section.

[0030] The processing parameters refer to the dimensional parameters required by the main beam 2, namely the thickness and length of the upper base plate 6, the vertical plate 7 and the lower base plate 8. The processing parameters can be obtained by querying the main beam 2 parameter table. The main beam 2 parameter table refers to a corresponding table that records the fuselage model and its corresponding processing parameters.

[0031] The cross-sectional image refers to a picture of the cross section of the steel material. The cross-sectional image can be obtained through a camera. The method for obtaining the cross-sectional image is selected by the staff according to the actual situation and will not be elaborated here.

[0032] Step 102: Determine the placement posture of the steel material according to the cross-sectional image.

[0033] The placement posture refers to the orientation of the steel, that is, whether the cross-section of the steel is "H"-shaped or "I"-shaped. The placement posture can be determined by image recognition technology. The method for determining the placement posture is common knowledge among people in this field and will not be elaborated here.

[0034] Step 103: Determine the thickness parameter of the steel material from the cross-sectional image based on the placement posture.

[0035] The thickness parameter refers to the thickness value of the upper and lower bottom plates and the vertical plate 7 of the steel in the cross-sectional image. The thickness parameter can be obtained through image recognition technology. The method for identifying the thickness parameter is common knowledge among those skilled in the art and will not be elaborated here.

[0036] Step 104: Calculate the difference between the thickness parameter and the processing parameter at the corresponding position and define it as the processing difference.

[0037] Processing difference refers to the difference between thickness parameters and processing parameters, that is, the gap between the actual size of the steel and the required size of the main beam 2. The processing difference is used to show whether the steel can be used for the main beam 2.

[0038] Step 105: When the processing difference falls into a preset error range, the steel material number is determined according to the cross-sectional image.

[0039] The error range refers to the difference between the actual size of the steel and the required size. The error range is selected by the staff according to the actual situation and will not be elaborated here. If the processing difference falls within the error range, it means that the thickness values ​​of the upper and lower bottom plates and the vertical plate 7 of the steel meet the standards, that is, the steel can be directly used as the main beam 2.

[0040] Steel number refers to a number set in advance to distinguish steel. Each steel number corresponds to a steel one by one. The steel number is marked on the cross-section of the steel in advance and can be obtained through image recognition technology.

[0041] Step 106: According to the steel number, the preset selection device is controlled to mark the steel as qualified steel.

[0042] The selection device refers to a device used to manage and display the status of steel. When the size of the steel meets the requirements of the main beam 2, the steel number is marked through the selection device, thereby facilitating the staff to select suitable steel and improving the convenience of selecting steel.

[0043] By replacing the upper base plate 6, the vertical plate 7 and the lower base plate 8 fixed by welding with an integrally formed H-shaped steel, the structural strength of the main beam 2 of the molded fuselage is improved, the compression deformation of the main beam 2 is reduced, and the welding amount of the assembled molded fuselage is reduced, thereby improving the convenience of assembling the molded fuselage.

[0044] Reference Figure 4 , a method for selecting H-shaped steel for a mold body, further comprising: Step 107: When the processing difference falls into the preset rolling range, the roll series number is determined according to the steel number.

[0045] The rolling range refers to the processing difference range where the actual size of the steel is slightly larger than the required size. The rolling range is selected by the staff according to the actual situation and will not be described here. The processing difference falling into the rolling range means that the size of part of the steel is larger at this time and needs to be trimmed to make the steel meet the parameter requirements of the main beam 2.

[0046] Roller device refers to a device used to roll steel to deform it and adjust the size of H-shaped steel. Roller device is selected by staff according to actual conditions and will not be described here. Roller series number refers to the number set in advance to distinguish roll series. Each roll series number corresponds to a roll series. Roller series refers to equipment for manufacturing H-shaped steel composed of multiple roller devices. Each type of H-shaped steel has its corresponding roller series.

[0047] Step 108: Retrieve the preset roller device according to the roller series number, and determine the processing position according to the processing difference.

[0048] The roller system used to make the current steel is called up to further process the current steel. The processing part refers to the part where the processing difference falls into the rolling interval. The part on the H-beam that needs further correction is determined based on the processing difference.

[0049] Step 109: Determine the roll system parameters according to the roll system number.

[0050] Roll system parameters refer to parameters such as the number, diameter, spacing and speed of each roller in the roll system. Roll system parameters can be obtained from the roll system parameter table. The roll system parameter table refers to a relationship table that records the roll system numbers and their corresponding roll system parameters.

[0051] Step 110: Determine the roller number according to the processing position and roller system parameters.

[0052] Roller number refers to the number set in advance to distinguish rollers. Each roller number corresponds to a roller one-to-one. Each position of the H-shaped steel is obtained by simultaneous processing by at least two roller devices. The roller number is the number of multiple rollers used to process the processing position. The method for determining the roller number is common knowledge among people in this field and will not be elaborated here.

[0053] Step 111: Determine the roller gap based on the processing difference and the roller system parameters.

[0054] Roller gap refers to the spacing value that needs to be maintained by standard rollers in order to reduce the processing difference through rollers so that the size of the H-beam meets the requirements of standard rollers. The roller gap is the difference between the original spacing of the rollers and the processing difference. The original spacing of the rollers can be extracted from the roller system parameters.

[0055] Step 112: adjusting the gap of the preset roller device according to the roller gap based on the roller number, and controlling the preset roller device to roll the steel.

[0056] When the thickness of part of the H-beam slightly exceeds the required thickness of the main beam 2, the spacing of the roller system is adjusted and the steel is further rolled, so that the H-beam is deformed to the required thickness parameter, reducing the situation where the thickness of the H-beam does not meet the standard.

[0057] Reference Figure 5, crack treatment methods include: Step 200: Based on the situation that the processing difference falls into a preset error range, a steel image of the entire steel is obtained.

[0058] The steel image refers to the picture of the entire steel. The steel image can be obtained through a camera. The method for obtaining the steel image is selected by the staff according to the actual situation and will not be elaborated here.

[0059] Step 201: Determine whether there are crack features on the steel based on the steel image.

[0060] Crack features refer to characteristic pixels of cracks on steel. Image recognition technology can be used to determine whether crack features exist on the steel image. The method for determining crack features is common knowledge among those skilled in the art and will not be elaborated on here.

[0061] Step 202: When crack features exist on the steel material, the crack position is determined based on the steel material image.

[0062] The crack position refers to the position of the crack on the steel. The crack position can be obtained through image recognition technology. The method for determining the crack position is common knowledge among people in this field and will not be elaborated here.

[0063] Step 203: Determine a detection path according to the crack position.

[0064] The acoustic wave device refers to a device used to emit ultrasonic waves to detect the internal conditions of steel. The acoustic wave device is generally also integrated with a receiving device for receiving feedback sound waves emitted by the ultrasonic waves and a mobile device for carrying the acoustic wave device for movement. The acoustic wave device is selected by the staff according to actual conditions and will not be elaborated here.

[0065] The detection path refers to the route that the acoustic wave device moves to the crack location. The detection path can be automatically generated by the supporting program of the acoustic wave device according to the crack location. The method for determining the detection path is common knowledge among people in this field and will not be elaborated here.

[0066] Step 204: controlling a preset acoustic wave device to reach the crack position according to the detection path, and controlling the preset acoustic wave device to emit a preset detection acoustic wave.

[0067] The detection sound wave refers to the ultrasonic wave emitted by the sound wave device for detecting the internal structure of the steel. The detection sound wave is selected by the staff according to the actual situation and will not be elaborated here.

[0068] Step 205: Control a preset sound wave device to receive feedback sound waves, and generate structural parameters inside the steel material according to the feedback sound waves.

[0069] Feedback sound wave refers to the sound wave signal that is fed back to the detection sound wave after the sound wave device emits the detection sound wave. The feedback sound wave can be received by a receiving device integrated in the sound wave device. The structural parameter is the three-dimensional data of the internal structure of the steel constructed according to the feedback sound wave. The method of constructing the structural parameter is common knowledge to people in this field and will not be elaborated here.

[0070] Step 206: Determine the crack area according to the structural parameters.

[0071] The crack area refers to the three-dimensional parameters of the crack in the steel. The crack area can be extracted from the structural parameters. The method for extracting the crack area is common knowledge to those skilled in the art and will not be elaborated here.

[0072] Step 207: Control the preset selection device to notify the staff according to the crack area and the steel number.

[0073] When cracks exist on the surface of the steel, the steel is further detected by an acoustic wave device to obtain the extension of the cracks inside the steel, which makes it easier for staff to judge the strength of the steel and reduces the situation where the main beam 2 is damaged due to the use of cracked steel as the main beam 2.

[0074] Reference Figure 6 , crack treatment methods also include: Step 208: Determine the transverse length and longitudinal length of the crack on the cross section of the steel material according to the crack area.

[0075] The transverse length refers to the maximum length of the crack in the horizontal direction, and the longitudinal length refers to the maximum length of the crack in the vertical direction. The transverse length and the longitudinal length can be extracted from the crack area. The method of extracting the transverse length and the longitudinal length is common knowledge among people in this field and will not be elaborated here.

[0076] Step 209: Determine the damage level of the crack to the steel structure according to the crack position, transverse length and longitudinal length.

[0077] The damage grade refers to an artificially set value used to show the impact of cracks on the strength of steel structures. The lower the structural strength of the crack location and the larger the transverse and longitudinal lengths, the greater the impact of the crack on the strength of the steel structure and the higher the damage grade. The damage grade is selected by the staff based on actual conditions and will not be elaborated here.

[0078] Step 210: When the damage level is lower than a preset processing threshold, the impact range of the crack is determined according to the crack area.

[0079] The processing threshold refers to the maximum damage level at which the crack has a small impact on the strength of the steel structure. The processing threshold is selected by the staff according to the actual situation and will not be elaborated here. If the damage level is lower than the processing threshold, it means that the crack has a small impact on the strength of the steel structure, and at this time, it is only necessary to reduce the further expansion of the crack.

[0080] The influence interval refers to the area of ​​the steel material affected by the crack. The influence interval is determined based on the extension of the crack. The method for determining the influence interval is common knowledge to those skilled in the art and will not be elaborated here.

[0081] Step 211: When the processing difference falls into a preset rolling interval, the rolling number is determined according to the crack position, and the rolling position of the roller device is obtained.

[0082] The rolling number refers to the roller number of the roller that rolls to the crack position when the roller system rolls the steel. The method for determining the rolling number is common knowledge known to those skilled in the art and will not be elaborated here.

[0083] The rolling position refers to the point where the roller device is rolling. The rolling position can be obtained by obtaining a picture of the roller device and then judging from the picture through image recognition technology. The method for obtaining the rolling position is selected by the staff according to the actual situation and will not be elaborated here.

[0084] Step 212: When the rolling position falls into the influence interval, the preset roller device is controlled to cancel the adjustment gap according to the rolling number.

[0085] The rolling position falling into the influence interval means that the rollers are rolled into the area affected by the cracks. At this time, the rollers that control the rolling crack position cancel the adjustment of the spacing to reduce the extrusion of the steel, thereby reducing the crack expansion caused by the roller extrusion.

[0086] Reference Figure 7 , crack treatment methods also include: Step 213: When the damage level is not lower than a preset processing threshold, the extension length of the crack in the length direction of the steel is determined according to the crack area.

[0087] If the damage level is not lower than the processing threshold, it means that the crack has a great impact on the structural strength of the steel, and the structural strength of the steel needs to be improved. The extension length refers to the maximum length of the crack in the length direction of the steel. The extension length can be extracted from the crack area through image recognition technology. The identification method of the extension length is common knowledge among those skilled in the art and will not be described here.

[0088] Step 214: Control a preset cutting device to generate a repair block according to the extension length.

[0089] Repair material refers to the material used to repair steel. Repair material is generally made of the same material as steel or with similar physical properties. The repair material is selected by the staff according to the actual situation and will not be described in detail here. The cutting device refers to the device used to cut the repair material to form a repair block. The cutting device is selected by the staff according to the actual situation and will not be described in detail here. The repair block is a long strip of repair material that is cut by the cutting device and is consistent with the extension length, wherein the thickness and width of the repair block are determined by the thickness and width of the repair material.

[0090] Step 215: Determine the mapping position of the crack on the steel surface according to the crack area.

[0091] The mapping position refers to the point in the crack area that is closest to the steel surface. Each surface of the steel has a mapping position. When there are multiple points on the same surface of the steel, the midpoint of the multiple points is used as the mapping position.

[0092] Step 216: Control a preset fixing device to adhere the repair block to the mapped position according to the mapped position, and control a preset roller device to roll the mapped position of the steel.

[0093] The fixing device refers to a device used to fix the repair block on the steel. The fixing device generally injects glue on one side of the repair block first, and then temporarily fixes the repair block to the mapping position on the steel through the glue. The fixing device is selected by the staff according to the actual situation and will not be elaborated here.

[0094] After the repair block is fixed to the steel by a fixing device, the steel and the repair block are rolled by a roller system so that the steel and the repair block are combined into one. Then, the repair block is rolled by rollers to increase the density of the steel at the mapped position and squeeze the internal cracks to improve the structural strength of the steel.

[0095] Reference Figure 8 , crack treatment methods also include: Step 217: When the damage level is not lower than a preset processing threshold, determining an extension width of the crack at the mapped position based on the mapped position.

[0096] When the crack extends to the steel surface, it is easy to form an opening on the steel surface. The extension width is the opening width of the crack at the mapping position. The extension width can be obtained from the steel image through image recognition technology. The identification method of the extension width is common knowledge among people in this field and will not be elaborated here.

[0097] Step 218: When the extension width exceeds the preset repair width, the quotient of the extension width and the preset repair width is calculated, and the quotient is rounded up to obtain the repair quantity.

[0098] The repair material is stored in the cutting device in the form of long strips. The repair width refers to the initial width of the repair material. The repair width is selected by the staff according to the actual situation and will not be described here. The extension width exceeds the repair width, which means that when the repair block covers the mapping position, the repair block cannot completely cover the crack opening on the steel. The repair quantity refers to the minimum number of repair blocks required to completely cover the crack opening on the steel.

[0099] Step 219: Determine the arrangement position according to the mapping position, the extension width and the patching quantity.

[0100] The arrangement position refers to the position of the patch block farthest from the mapping position after the patch blocks are closely arranged at the mapping position. Since the mapping position is the midpoint of the extended width, the total width of the patch blocks after arrangement can be obtained by calculating the number of patches and the patch width, and then the arrangement position is obtained based on the comparison relationship between the total width and the extended width combined with the mapping position. The method for determining the arrangement position is common knowledge among people in this field and will not be elaborated here.

[0101] Step 220: Control the preset fixing device according to the arrangement position to arrange the repair blocks in the same direction in sequence and adhere them to the steel.

[0102] By covering the crack openings with arranged repair blocks, the presence of cracks on the repaired steel is reduced, thereby reducing secondary damage to the steel caused by the residual small cracks, thereby improving the structural strength of the steel.

[0103] Reference Fig. 9 , the generation method of the patch block includes: Step 300: Control a preset cutting device to cut a preset repair material according to the extension length to form an initial block.

[0104] The initial block refers to a short block of repair material obtained by cutting a long strip of repair material according to the extended length by a cutting device.

[0105] Step 301: Determine the repair direction of the roller device according to the mapped position.

[0106] The repair direction refers to the direction in which the roller device rolls the steel. The roller device needs to roll the steel from one end of the steel to the other end of the steel. When the mapping position needs to be rolled, it is necessary to select the end closer to the mapping position for rolling to reduce the rolling time. The method for determining the repair direction is common knowledge among people in this field and will not be elaborated here.

[0107] Step 302: Determine the guide angle according to the extension length.

[0108] The calculation method of the guide angle includes: A=arctan(μ 1 )-arcsin[-μ2 *k / √(μ 1 2 +1)]; where A is the required guiding angle; μ 1 It is the friction coefficient between the repair material and the roller, μ 2 It is the friction coefficient between the repair material and the steel, μ 1 and μ 2 They are all obtained by the staff through experimental measurements in advance; k is the empirical coefficient, k is a coefficient related to the rolling geometry, etc., k is selected by the staff according to the actual situation and will not be elaborated here.

[0109] Step 303: Control a preset cutting device to cut the initial block to form a repair block according to the repair direction and the guide angle.

[0110] A guiding surface is cut out on the initial block by a cutting device, so as to reduce the situation that the rolling resistance is too large due to the excessive bite angle when the roller rolls to the repair block, thereby causing relative movement between the repair block and the steel.

[0111] Based on the same inventive concept, an embodiment of the present invention provides a system for selecting H-shaped steel for a mold body, comprising: An acquisition module, used to acquire fuselage model, cross-section image, steel image and rolling position; A memory for storing a program for storing any one of the above-mentioned methods for selecting the H-shaped steel for the mold body; The program in the processor and the memory can be loaded and executed by the processor to implement any of the above-mentioned methods for selecting H-shaped steel for the mold body.

[0112] Based on the same inventive concept, an embodiment of the present invention provides an intelligent terminal, including a memory and a processor, wherein the memory stores a computer program that can be loaded by the processor and execute any of the above-mentioned methods for selecting H-shaped steel for a mold body.

[0113] Those skilled in the art can clearly understand that for the convenience and simplicity of description, only the division of the above-mentioned functional modules is used as an example. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. The specific working process of the system, device and unit described above can refer to the corresponding process in the aforementioned method embodiment, and will not be repeated here.

[0114] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A method for selecting H-shaped steel for a mold body, characterized in that: include: Get the body model of the injection molding machine; Determine the processing parameters of the main beam according to the fuselage model and obtain the cross-sectional image of the steel cross section; Determine the placement of steel based on the cross-sectional image; Determine the thickness parameters of steel from the cross-sectional image based on the placement posture; Calculate the difference between the thickness parameter and the processing parameter at the corresponding position and define it as the processing difference; When the processing difference falls into the preset error range, the steel number is determined based on the cross-sectional image; The steel is marked as qualified steel by controlling the preset selection device according to the steel number; When the processing difference falls into the preset rolling range, the roll series number is determined according to the steel number; The preset roller device is called according to the roller series number, and the processing position is determined according to the processing difference; Determine the roll system parameters according to the roll system number; Determine the roller number according to the processing position and roller system parameters; Determine roller gap based on processing difference and roller system parameters; According to the roller number, the gap of the preset roller device is adjusted according to the roller gap, and the preset roller device is controlled to roll the steel.

2. The method for selecting H-shaped steel for a mold body according to claim 1, characterized in that: Also included is a crack treatment method, the crack treatment method comprising: Based on the situation that the processing difference falls into the preset error range, a steel image of the entire steel is obtained; Judging whether there are crack features on the steel material based on the steel material image; When crack features exist on the steel, the crack location is determined based on the steel image; Determine the detection path according to the crack location; Controlling a preset acoustic wave device to reach the crack position according to the detection path, and controlling the preset acoustic wave device to emit a preset detection acoustic wave; Controlling a preset sound wave device to receive feedback sound waves, and generating structural parameters inside the steel material according to the feedback sound waves; Determine the crack area based on structural parameters; The preset selection device is controlled according to the crack area and steel number to inform the staff.

3. The method for selecting H-shaped steel for mold body according to claim 2, characterized in that: The crack treatment method further comprises: Determine the transverse and longitudinal lengths of the crack on the cross section of the steel material based on the crack area; Determine the damage level of the crack to the steel structure based on the crack location, transverse length and longitudinal length; When the damage level is lower than the preset processing threshold, the impact range of the crack is determined based on the crack area; When the processing difference falls into the preset rolling interval, the rolling number is determined according to the crack position, and the rolling position of the roller device is obtained; When the rolling position falls into the influence interval, the preset roller device is controlled according to the rolling number to cancel the adjustment gap.

4. The method for selecting H-shaped steel for a mold body according to claim 3, characterized in that: The crack treatment method further comprises: When the damage level is not lower than the preset processing threshold, the extension length of the crack in the length direction of the steel is determined according to the crack area; Controlling a preset cutting device to generate a patch block according to the extension length; Determine the mapping position of the crack on the steel surface according to the crack area; According to the mapping position, the preset fixing device is controlled to adhere the repair block to the mapping position, and the preset roller device is controlled to roll the mapping position of the steel.

5. The method for selecting H-shaped steel for mold body according to claim 4, characterized in that: The crack treatment method further comprises: When the damage level is not lower than a preset processing threshold, determining an extension width of the crack at the mapped position based on the mapped position; When the extension width exceeds the preset repair width, the quotient of the extension width and the preset repair width is calculated and rounded up to obtain the repair quantity; Determine the arrangement position according to the mapping position, the extension width and the number of patches; A preset fixing device is controlled according to the arrangement position to arrange the repair blocks of the repair quantity in sequence in the same direction and adhere them to the steel material.

6. The method for selecting H-shaped steel for mold body according to claim 5, characterized in that: The method for generating the patch block comprises: Controlling a preset cutting device to cut a preset repair material according to the extension length to form an initial block; Determine the repair direction of the roller device according to the mapped position; Determine the guide angle based on the extension length; The preset cutting device is controlled according to the repair direction and the guide angle to cut the initial block to form a repair block.

7. The method for selecting H-shaped steel for mold body according to claim 6, characterized in that: The calculation method of the guiding angle includes: A=arctan(μ1)-arcsin[-μ2*k / √(μ1 2 +1)]; Where A is the required guidance angle; μ1 is the friction coefficient between the repair material and the roller; μ2 is the friction coefficient between the repair material and the steel; k is the empirical coefficient.

8. A system for selecting H-shaped steel for a mold body, characterized in that: include: An acquisition module, used to acquire fuselage model, cross-section image, steel image and rolling position; A memory for storing a program of a method for selecting an H-shaped steel for a mold body according to any one of claims 1 to 7; The program in the memory can be loaded and executed by the processor.

9. An intelligent terminal, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program which can be loaded by the processor and executes a method for selecting an H-shaped steel for a mold body as claimed in any one of claims 1 to 7.

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