SCRAPING UNIT FOR REMOVING PRE-WELD COATING

Abstract

The invention relates to at least one scraping unit (10) which removes the coating in the areas to be welded before welding on at least one sheet metal material (20). Figure 1

Description

1 TARIFF SCRAPING UNIT FOR REMOVING PRE-WELD COATING TECHNICAL AREA 5 The invention involves welding at least one sheet metal material before the welding process begins. It involves at least one milling unit that removes the coating in those areas. PREVIOUS TECHNIQUE 10 In the automotive manufacturing industry, structural strength, impact performance, and In the production of parts requiring dimensionality accuracy, coated sheet metal materials Continuous forming and joining lines where it is used are widely preferred. It is constructed. Crash beam, reinforcement element, profile-shaped load-bearing parts and 15 Similar automotive components are often made from different types of sheet metal unrolled from coils. passing through stations, creating holes, shaping, bending and It is manufactured by welding from suitable points. The basic principles in such lines... The need is, on the one hand, to maintain the continuity of the production line and a high cycle speed, On the other hand, the welding operations performed on the part are the desired 20 criteria of strength, geometric accuracy and process repeatability The aim is to ensure that it meets the requirements. In particular, it is coated to increase corrosion resistance. in sheet metal materials used, surface protection throughout the production process. a technical balance between maintaining a high level of joining quality It is necessary to establish this. Therefore, the relevant technical field, coated metal surfaces 25 processing, shaping and pre-welding suitable under production line conditions It is closely related to making it into a certain state. However, in current production practices, coated sheet metal is used. Direct sourcing leads to significant technical problems. 30 It opens. The coating layer on the sheet metal surface is thermally applied in the welding area. the interaction, contact conditions and homogeneity of the bonding are negatively affected. This can have an impact. Consequently, there may be a decrease in welding speed and welding stability. reduction, irregularity in bonding quality, insufficient penetration, poor mechanical properties. 2 Strength issues or subsequently discovered connection defects emerge. In automotive production lines, especially those involved in mass production, such problems are not isolated incidents. It does not create a source quality problem, and at the same time improves line efficiency and quality. technical disadvantages that directly affect control load and scrap rates It is transforming. In addition, the coating layer creates 5 in the source region. The negative impact becomes more critical in certain product types and specific geometric regions. This results in the same quality and repeatable resource acquisition at every point. This makes it difficult to work with coated sheet metal. As a result, working with coated sheet metal is difficult. In the lines, only the pre-welding surface conditions are optimized. It is not an auxiliary process, but directly improves product performance and process reliability. 10 It is a technical requirement that determines the criteria. In the current technology, various surface preparation methods are used to overcome these problems. Cleaning or coating removal approaches are applied. However, this In many cases, these approaches fail to provide sufficient technical advantage. Some 15 In many applications, it is preferred to remove the coating from a large surface area. This makes the process unnecessary, as it is only necessary for the limited areas where welding will be performed. growth in the area, increased processing time, and unnecessary material surface area. This causes it to be affected. Some applications involve continuously running production. They cannot be easily integrated into existing lines, creating a need for additional stations, or 20 Because the process cannot operate with sufficient precision only in the target areas. This negatively affects its stability. In addition, the areas to be used for sourcing... general process carried out without considering location, product geometry and processing sequence Surface treatments both reduce production efficiency and damage the coating. This leads to the protective effect it provides disappearing in areas where it is not needed. 25 It can open. Therefore, in current technology, especially in continuously operating automotive applications... In production lines, controlled, repeatable, line flow is applied only in the necessary areas. compatible and technical solutions that can be implemented without negatively affecting production speed It is needed. In conclusion, all the problems mentioned above require an innovation in the relevant technical field. This has made it necessary to do it. A BRIEF DESCRIPTION OF THE INVENTION 3 The present invention eliminates the aforementioned disadvantages and the related technical to bring new advantages to the field, by removing the pre-welding coating. It is related to the engraving unit. One purpose of the invention is to create a profile on the sheet metal before the welding process that only the weld will be visible. a scraping that allows selective removal of the coating in the areas to be treated The unit is to present it. Another purpose of the invention is to enable continuous and controlled operation of 10 crash beams in the production line. a source that improves quality, speed, production efficiency and process reliability The goal is to create a milling unit. All the purposes mentioned above and those that will emerge from the detailed explanation below. The present invention, for the purpose of realizing this, involves welding on at least one sheet metal material. at least one person removes the coating from the areas to be welded before the welding process. It is a milling unit. Accordingly, its innovation lies in the main structural aspect of the aforementioned milling unit. It must contain at least one body that serves as a load-bearing element, and the aforementioned body must be made of the aforementioned sheet metal. directing and balancing the passage of material along at least one line flow direction It must contain at least one idler cylinder, which is an element, and the aforementioned idler cylinder must be 20 the coating on the sheet metal to be welded It must contain at least one blade that scrapes, and the blade in question must be continuously used during the process. at least one that enables monitoring and identification of potential problems It includes a sensor, and it performs engraving by evaluating the data obtained from the aforementioned sensor. at least one control unit that manages the operation of the unit and shuts down the system when necessary. 25 It includes a control unit that is connected to the aforementioned control unit and processes the data. at least one processing unit providing data and at least one unit where data and prescription information are stored. It includes a memory unit, allows the user to input parameters, and Error information and operating status transmitted by the aforementioned processing unit It must include at least one screen that allows the user to view it. Thus, sheet metal 30 The coating on the material is controlled only in the areas where welding will be performed. Selective removal is performed, increasing resource quality and speed. 4 A feature of a possible configuration of the invention is that it is controlled by the aforementioned control unit. the reference for the sheet metal material that is directed and entered by the operator via the screen at least one that automatically changes the position of the blades depending on its value It includes a blade positioning element. Thus, different sheet metal materials According to the references, the position of the blades can be adjusted automatically, manually 5 The need for intervention is reduced, the setup time is shortened, and the scraping process is improved. Accuracy and process repeatability are increased. A characteristic feature of a possible construction of the invention is that the aforementioned idler cylinder has gaps between them. It should be two pieces, one above the other, so that the sheet metal can pass through. Thus, sheet metal 10 The material's progress within the milling unit becomes more stable, and The precision of the engraving process is increased. Another possible configuration of the invention is characterized by the control unit. The directed and applied pressure force during the engraving process on the sheet metal is 15 It must contain at least one load cell that monitors and maintains the temperature at a specific level. Thus, the pressure force applied to the sheet metal during the engraving process is constant. This can be monitored, and deviations in pressure force are automatically detected. can be balanced and the sources of quality losses that are difficult to detect visually. This can prevent it from negatively affecting performance. 20 Another possible configuration of the invention is characterized by the aforementioned load cell. The print suitable for engraving the sheet metal material being tracked at least one that allows manual adjustment by the user when needed It includes a pressure adjuster. This allows the sheet metal material to be adjusted for unwanted pressure changes during processing. Movement is prevented, and the scraping depth becomes more stable. - A feature of a possible configuration of the invention is the crash in automotive manufacturing. Welding on coated sheet metal in beam production line Removal of coating from areas to be welded before the welding process. It is a method applied for and its characteristic is; - at least one product made of sheet metal 30 The information and / or reference value must be entered via at least one screen, - whether or not to perform the engraving according to the mentioned reference value determined by a small control unit - at least one of the aforementioned control units that enables data processing. a processing unit and at least one memory location for storing data and prescription information working in coordination with the unit - Engraving by the control unit for the aforementioned coated sheet metal material The process is activated in 5 seconds for uncoated sheet metal. Passive operation of the scraping unit by taking the blades out of the process. transitioning to the current situation - sheet metal material is conveyed to the milling unit in at least one line flow direction. being done, - The sheet metal material is processed within the scraping unit by at least one idler roller for 10 minutes. guidance and balancing, - depending on the selected reference value, the position of the blades is at least one Automatic adjustment via the blade positioning element, - corresponding to the areas on the sheet metal where welding will be performed the coating is mechanically scraped off using at least one blade 15 removal, - the pressure force generated during the scraping process must be at least one load cell monitored with the help of and, if necessary, via the pressure adjuster adjusting the pressure, - the engraving process is carried out in the desired area and with the desired accuracy. 20 to determine that it did not happen using at least one sensor monitoring and transmitting the obtained data to the control unit, - data obtained from the sensor by the control unit evaluation, stopping the milling unit in case of error, and error the information is conveyed to the user via the screen, 25 It includes the steps. Thus, pre-welding within the crash beam production line. The necessary surface preparation is carried out continuously and in an integrated manner, subsequently This ensures that bending and welding steps are carried out under more favorable conditions, and Overall production quality is being improved. Another characteristic of a possible configuration of the invention is the service life of the blades. and / or the length of the sheet metal material passing through is monitored by the control unit and If a predetermined maintenance or replacement threshold is reached, it will be displayed on the screen. This includes the step of communicating maintenance and / or change information to the user. Thus 6 Maintenance or replacement of blades before performance loss due to wear occurs. The need can be communicated to the user, and the continuity of the engraving process can be maintained. Unexpected downtimes are being reduced, which could negatively impact resource quality. These situations can be prevented. BRIEF DESCRIPTION OF THE FIGURE Figure 1 shows a representative perspective view of the engraving unit that is the subject of the invention. It has been given. Figure 2 shows a representative bottom view of the engraving unit that is the subject of the invention. Figure 3 shows a schematic representation of the engraving unit that is the subject of the invention. DETAILED DESCRIPTION OF THE INVENTION 15 This detailed explanation of the invention only serves to better understand the subject. This is explained with examples that will not create any limiting effect. Figure 1 shows a representative perspective view of the engraving unit (10) which is the subject of the invention. 20 The mentioned scraping unit (10) is used in the crash beam in automotive manufacturing. on the coated sheet metal used in its production, before the welding process selectively applying the coating only to the areas to be welded It is a unit structured for lifting. The subject of the invention is the engraving unit (10) Thanks to this, the coating layer, which negatively affects the weld quality, weld 25 It is removed in a controlled manner beforehand, thus making the welding process easier. This ensures that it is carried out in a more stable, faster and more reliable way. The structure removes only the necessary coating, preventing the need to unnecessarily remove the coating from the entire surface. It allows operations to be carried out in the detected areas. In this way, production It increases efficiency, reduces welding errors, and is suitable for a continuous production line. It establishes a work routine. The subject of the invention, the engraving unit (10), can process at least one sheet metal material (20). The mentioned sheet metal material (20) is used for the production of automotive crash beams. 7 It is a coated raw material that is advanced along a continuously operating process line, and the word The subject is first unwound from the roll in the process line, then pre-drilled. The process is being carried out and the accuracy of the drilled holes is being checked. Sheet metal material. (20), after these preparatory stages, before the welding process on it The coating layer negatively affects the welding speed and welding quality. 5 Therefore, only pre-treatment is needed for the areas to be welded. He hears. Thus, the sheet metal (20) is then scraped by the scraping unit (10). Before proceeding to the bending and welding steps, the points to be welded It is subjected to a scraping process. This process ensures the continuous operation of the production line. While maintaining its structure, the sourcing process is more efficient, faster, and with fewer errors. 10 It acquires a structure that is suitable for its implementation. In a possible configuration of the invention, the engraving unit (10) shall have at least one control unit (30) includes. The mentioned control unit (30) includes at least one processor unit (40) and at most It works in conjunction with a small memory unit (50) and 15 related to the scraping process. managing the parameters, evaluating the sheet metal (20) recipes and It ensures the monitoring of the overall operational procedures. The aforementioned processing unit... (40) by running the process-specific software stored in the memory unit (50), the system Whether or not engraving will be done according to the defined product, and according to which reference the process will be carried out. It specifies how it will be carried out and how the relevant working conditions will be implemented. 20 The software specific to the mentioned process is the sheet metal on which the engraving unit (10) will be operated. recipe information, processing sequence, reference selections, and engraving of the material (20). decisions on whether or not to do it and working parameters of the system to ensure that this process is managed in a way that meets its requirements It refers to the software infrastructure that has been developed. 25 The excavation unit (10) includes at least one body (60). The aforementioned body (60), As the main structural support part forming the scraping unit (10), the relevant elements the basic structure that enables them to be positioned together and in a fixed manner Thus, the body (60) forms both the sheet metal (20) and the scraping unit 30 (10) to maintain the progress order within and the scraping unit (10) Contributes to the stable and reliable operation of the production line. It provides. 8 The subject of the invention, the engraving unit (10), includes at least one idler cylinder (70). The invention in its preferred configuration, the idler cylinder mentioned in the body (60) (70) They are positioned as two on top of each other. Idler cylinders (70), Passage of sheet metal (20) through the scraping unit (10) (I) in the line flow direction during which it is guided, balanced and remains stable along the desired path. 5 It enables its advancement. Thanks to the use of two idler cylinders (70) The transfer line inside the scraping unit (10) of the sheet metal (20) has become more stable. coming, material oscillation, vibration or unwanted positional This prevents deviations from occurring. Thus, the precision of the engraving process is ensured. positive contribution is provided. In addition, idler cylinders (70), sheet metal (20) 10 By regulating the contact and feed conditions inside the milling unit (10), milling Suitable for the continuous production line of unit (10) in a reliable and repeatable manner It supports his work. Figure 2 shows a representative bottom view of the engraving unit (10) which is the subject of the invention. 15 The subject of the invention, the engraving unit (10), includes at least one blade (80). The aforementioned The knife (80) corresponds to the areas to be welded on the sheet metal (20). It is a component that mechanically scrapes away the coating on certain parts. The invention In the preferred configuration, the number of knives (80) varies and is different from one They are arranged in such a way that there will be a large number of sheet metal (20) 20 multiple excavation zones located at a certain distance from each other It performs simultaneous processing. The blades (80) are only point-specific. removal of coating in target areas forming the basis of the welding process By providing this, it prevents unnecessary material loss throughout the entire surface, welding The coating layer, which negatively affects its quality, is removed in a controlled manner for 25 days. It removes it. Thus, the subsequent sourcing process is more stable, faster, and This contributes to its more reliable execution. In another possible configuration of the invention, the compressive force of the sheet metal (20) is the most Depending on the force value monitored by means of a small load cell (90) automatically 30 Adjustment is made by controlling the load cell (90) mentioned, for scraping. This allows the applied pressure force to be maintained at a specific level during the process. This prevents any loss of function that might occur during manual monitoring. This prevents the quality of the engraving from being negatively affected. This ensures precise engraving. 9 In applications requiring this, the pressure force is continuously monitored and the scraping is done. The continuity of quality is ensured. In the possible configuration of the invention, the engraving unit (10) has at least one pressure adjuster (100) is included. The mentioned pressure adjuster (100) is used for engraving the sheet metal (20). Appropriate pressure during passage through unit (10) along the line flow direction (I). It enables the adjustment of the force. Pressure adjuster (100), load cell (90) manually by the operator depending on the force value monitored via the device. It has an adjustable structure. Thus, the sheet metal (20) during the scraping process It is ensured that it is kept under suitable pressure force and the blades (80) sheet metal 10 (20) the coating on the surface is applied point by point with the desired precision and continuity It is possible to scrape. In this way, the sheet metal (20) can be processed. unwanted up-and-down movement, vibration, or scraping during The formation of irregularities in depth is prevented. The preferred method of the invention. In its structure, the pressure adjuster (100) is located in multiple numbers on the body 15 (30) is located on the upper surface and is easily accessible by the operator. It is structured. The engraving unit (10) includes at least one blade position adjuster (110). The mentioned blade position adjuster (110) adjusts the blades (80) to each other or to sheet metal 20 It is possible to adjust the position of the material (20) according to the target areas on it. by providing different product geometries, different weld point spacings, and different production processes. It contributes to adapting to their needs. In this way, the scraping process... It can only be carried out in the desired areas, avoiding unnecessary surface intervention. is prevented and the scraping unit (10) in different crash beam production scenarios 25 It becomes possible to use it in a precise, controlled and flexible manner. In the preferred configuration of the invention, the blade position adjuster (110) is located in the body (60) It is located on the side surface and is easily accessible to the operator. In another possible configuration of the invention, the blade position adjuster (110) has at least one 30 The blade is connected to the positioning element (120). The aforementioned blade positioning element (120), servo-controlled system, proportional valve, linear actuator or any actuator that produces similar motion, and the selected one position of the blades (80) automatically depending on the reference It can be modified. In a possible configuration of the invention, the aforementioned knife The operation of the positioning element (120) is controlled by the control unit (30). The processor unit (40) is running and is connected to the control unit (30), selected from the data recorded in the memory unit (50) the location information corresponding to the reference by making use of and evaluating the blade positioning element (120) 5 It creates the movement command. Thus, according to different reference selections. The position of the blades (80) can be adjusted to the relevant working position without requiring manual adjustment. This allows for faster adjustment, shortens setup time, and improves positioning accuracy. At least one scrap bin (130) located under the scraping unit (10) 10 It is located. The aforementioned scrap case (130) is made of sheet metal by knives (80). coating residues and similar materials (20) that are scraped away from the material It is positioned for the purpose of collecting waste particles. Thus, the scraping process The waste generated during production is distributed throughout the production line, affecting other elements. negatively affecting the work order or re-contact with sheet metal (20) 15 This prevents the process quality from deteriorating. Thanks to the scrap bin (130) The scraping process is carried out in a cleaner, more organized and controlled environment. The need for maintenance and cleaning of the scraping unit (10) is reduced. The subject of the invention is the engraving unit (10), welding on sheet metal (20) 20 After the coating layer corresponding to the areas to be treated is removed, the word The subject sheet metal (20) is to be advanced along the line flow direction (I) in the production line. The process continues, and in the next stage, bending will be carried out on the parts that will be bent. The processes are carried out. After the bending processes are completed, Welding is performed based on the areas where the coating has been removed previously, 25 then additional bending and subsequent welding according to the second reference on the line The steps are carried out. Subsequently, the processed part is cut and the line... It is then sent to the next stations. Thus, the subject of the invention is engraving. Unit (10), in the continuously operating crash beam production line, roll form and welding positioned before the subsequent shaping and assembly 30 operations in more favorable conditions, more stable and more efficient It contributes to its implementation. 11 In a possible configuration of the invention, the engraving unit must have at least one sensor (140) (10) It is located. The mentioned sensor (140) is used for the engraving process on sheet metal (20) whether it occurred in the desired region and with the desired accuracy monitoring, checking the working condition of the blades (80) and during the process It is used to identify any potential discrepancies. 5 of the invention possible configuration of sensor (140), image processing, fiber optic or electronic as any warning element that provides essentially automated information It is configured. Through the sensor (140), the breakage of the blade (80), the blade (80) loss of adjustment in position, insufficient scraping depth, incomplete Situations such as scraping or no scraping at all 10 The data obtained by the sensor (140) is determined. The data is sent to the control unit (30) is transmitted and the control unit (30) evaluates the data in question, error determining their status and generating the necessary control outputs It provides. The processor unit (40), which works in contact with the control unit (30), from the sensor (140) By processing the incoming data, the scraping process can be carried out under the desired conditions. 15 It analyzes that it is not being implemented. Thus, the data obtained with the sensor (140), to evaluate the processing quality of the milling unit (10), the milling process This allows for monitoring its continuity and making appropriate decisions in case of errors. This allows for situations that could lead to faulty production to be identified early. This is being identified, process reliability is being improved, and then 20 steps are being taken to the next production stages. The advancement of unsuitable parts is prevented. In a possible configuration of the invention, the engraving unit must have at least one screen (150) (10) The mentioned screen (150) is a human-machine interface, Monitoring of the operating parameters of the scraping unit (10) by the operator, 25 viewing necessary settings and tracking error or maintenance information It allows printing value, speed setting, selected product via the screen (150). prescription, blade position information, error warnings, maintenance and replacement notifications, and similar information. Process data can be presented to the operator. This allows the operator to monitor the excavation unit. (10) can monitor the working status instantly, the scraping unit (10) 30 It can monitor which operating mode it is in and intervene if necessary. It is able to do so. In addition, the screen (150) is between the production line and the engraving unit (10). By contributing to the transfer of operational information to the user, the accuracy of the settings 12 to improve, maintenance planning and process traceability It serves to improve it. The control unit (30) monitors the sheet metal being operated in the scraping unit (10). (20) Depending on the type and the relevant product recipe, the scraping process is applied and 5 It specifies that it will not be applied. Accordingly, sheet metal without a coating. If the material (20) is defined in the system to be processed, the knives (80) The machine is withdrawn from the operating position and the milling unit is in passive operation mode. It is passed through. For coated sheet metal (20), it is done in accordance with the relevant recipe. Working position of the blades (80), scraping timing and operation sequence control 10 It is determined by the unit. Thus, when for which sheet metal material (20). Whether or not scraping will be done is automatically determined on a prescription basis. It is managed, the unnecessary activation of the blades (80) is prevented, wear This reduces costs and ensures a more efficient production process. Figure 3 shows the schematic view of the engraving unit (10) which is the subject of the invention. The invention another subject used in a possible configuration of the scraping unit (10) The sensor (not shown in the figures) detects the engraving process in the desired area and to check whether it has been performed with the desired accuracy It contributes to monitoring the quality of the process. Thanks to this sensor, the milling process is 20... the operation not being carried out at the intended location, incomplete excavation, or If a deviation occurs that could affect the accuracy of the operation, the operator or Feedback is provided to the control unit (30), thus enabling fault detection on the production line. This simplifies the process and increases its reliability. In light of all that has been explained, the invention works as follows: coated sheet metal. material (20), in the continuously running process line for crash beam production After being unrolled from the roll and undergoing pre-drilling and inspection processes, the line flow direction The subject of the invention is conveyed to the engraving unit (10) throughout (I). Sheet metal material (20), stable 30 with the help of idler cylinders (70) located inside the body (60). are directed in such a way and precisely positioned to the position where the blades (80) will operate. At this stage, the blades (80), load cell (90) and blade position adjuster are brought in. (110) under appropriate pressure and position, only to be sourced by mechanically scraping off the coating layer at points corresponding to the regions 13 It removes the coating residues resulting from the scraping process. collected in the box (130), thus ensuring a clean, orderly and reliable production line. It is ensured that it works in this way. The scraping process is completed on the sheet metal (20) then proceeding in the direction of line flow (I) bending, welding, additional bending, additional It undergoes welding and cutting processes, so the welding process reduces the coating by 5%. More stable, faster, and more efficient in areas free from negative impacts. It is carried out reliably. The working principle of the invention consists of a control unit (30), a processor unit (40), a sensor (140), memory unit (50), blade positioning element (120), load cell (90) and display 10 By working together with (150), it enables the process to be managed automatically. Thanks to process-specific software, scraping is done according to the defined recipe. It is determined that the blades (80) for uncoated sheet metal (20) will not be processed. can be taken outside, the position of the blades (80) is automatically adjusted according to the selected reference. It can be changed and the pressure force can be maintained at the desired level. Sensor 15 (140) with the help of blade (80) breakage, loss of adjustment, incomplete scraping or no scraping at all Situations such as not being done can be determined. In such cases, the control unit (30) It can communicate with the production line and cause the system to shut down. Additionally... Maintenance and blade replacement needs are monitored based on the length of sheet metal used. Information is transmitted to the operator via the screen (150). 20 The scope of protection of the invention is set out in the attached claims and is strictly adhered to. The detailed explanation cannot be limited to the examples given. Because in technology... A specialist, without deviating from the main theme of the invention, will do what is described above. It is clear that similar structures can emerge in light of this. 25 14 REFERENCE NUMBERS GIVEN IN THE FIGURE Scraping Unit Sheet Metal Material Control Unit 5 40 Processor Units 50 Memory Units 60 Fuselage 70 Idler Cylinder 80 Knives 10 90 Load Cell 100 Print Adjusters 110 Blade Position Adjuster 120 Blade Positioning Elements 130 Scrap Boxes 15 140 Sensors 150 Screen (I) Line Flow Direction

Claims

REQUESTS 1. The invention is the welding process before welding on at least one sheet metal (20). There is at least one scraping unit (10) that removes the coating in the areas to be made Its feature is that the mentioned excavation unit (10) is the main structural support element 5 It must contain at least one body (60), the aforementioned body (60) must contain the aforementioned sheet metal directing the passage of the material (20) along at least one line flow direction (I) and It must contain at least one idler cylinder (70) which is the balancing element, mentioned welding on sheet metal (20) guided by idler cylinder (70) It must contain at least one blade (80) that scrapes the coating in the area to be made, 10 the aforementioned blade (80) should be continuously monitored during the process and at least one sensor (140) that enables the detection of possible problems including by evaluating the data obtained from the mentioned sensor (140) managing the operation of the scraping unit (10) and stopping the system when necessary It must contain at least one control unit (30), the aforementioned control unit (30) 15 at least one processor unit (40) with which it is connected and which enables the processing of data. It must contain at least one memory unit (50) in which data and prescription information are stored, the user must enter parameters and the aforementioned processor The user receives error information and operating status transmitted by unit (40). It must contain at least one screen (150) that allows it to be viewed by. 20 2. According to claim 1, an engraving unit (10) and its feature is the control mentioned. directed by unit (30) and entered by the operator via the screen The position of the blades depends on the reference value of the sheet metal material. at least one blade positioning element that automatically changes (120) 25 It includes.

3. According to claim 1, a scraping unit (10) and its characteristic is; the aforementioned idler two cylinders (70) with sheet metal (20) passing between them, one above the other. It is the number of days. 30 4. According to claim 1, an excavation unit (10) and its feature is; control unit (30) directed by and during the engraving process on the sheet metal (20) 16 by monitoring the applied pressure force and maintaining it at a certain level It contains at least one load cell (90) which provides 5. According to claim 4, an excavation unit (10) and its feature is the aforementioned load cell (90) The scraping process of the sheet metal (20) followed by 5 the appropriate pressure should be manually applied by the user when needed. It contains at least one pressure adjuster (100) that allows it to be adjusted.

6. According to claim 5, an engraving unit (10) and its feature is the aforementioned printing. The adjuster (100) is connected to the upper surface of the body (60). 10 7. The invention relates to coated sheet metal in the crash beam production line for automotive manufacturing. before welding the material, the areas to be welded It is a method used to remove the coating; its characteristic feature is: - product information and / or reference value of at least one sheet metal material (20) 15 Entering through at least one screen (150), - whether or not to perform the engraving according to the mentioned reference value determined by a small control unit (30), - at least one of the mentioned control units (30) that enables data processing. processor unit (40) and at least one 20 where data and prescription information are stored. It works in connection with the memory unit (50), - Control unit (30) for the aforementioned coated sheet metal material (20) Activation of the engraving process by, uncoated sheet metal For material (20), scraping is done by taking the blades (80) out of the process. Switching unit (10) to passive working status, 25 - sheet metal (20) to the scraping unit in at least one line flow direction (I) (10) referral, - sheet metal (20), at least one idler in the scraping unit (10) steering and balancing with cylinder (70), - depending on the selected reference value, the position of the blades (80) must be at least 30 automatically via a blade positioning element (120) adjustment, 17 - corresponding to the areas to be welded on the sheet metal (20) by mechanically scraping off the coating using at least one blade (80) removal, - the pressure force generated during the scraping process must be at least one load cell (90) Monitoring with the help of and if necessary via the pressure adjuster (100) 5 adjusting the pressure, - the engraving process is carried out in the desired area and with the desired accuracy. to determine that it did not happen by means of at least one sensor (140) monitoring and transmission of the obtained data to the control unit (30), - data obtained from sensor (140) by control unit (30) 10 evaluation, stopping of the scraping unit (10) in case of error and Error information is conveyed to the user via the screen (150), It includes the steps.

8. A method according to claim 7, the characteristic of which is that the service life of the knives (80) is 15 and / or the length through which the sheet metal (20) passes by the control unit (30) to be monitored and reach the predetermined maintenance or replacement threshold In this case, maintenance and / or replacement information is provided to the user via the screen (150). It includes the transmission step.