WELDED CHASSIS POSITIONING / ASSEMBLY INTERFACE

Abstract

The invention relates to a method of assembly interface for the precise alignment, joining and securing of plate elements used in mounting brackets and support structures, via slots arranged in different directions and a roller-shaped positioning pin during welding.The invention relates specifically to a welded chassis positioning / assembly interface which includes at least one lower plate (10) with at least one slot (11) on it, at least one upper plate (20) with at least one recess (21) arranged in a direction different from the direction of the said slot (11), and at least one roller pin (30) which has a circumferential shape that allows the slot (11) on the said lower plate (10) and the recess (21) on the upper plate (20) to fit together, thus enabling the positioning of the lower plate (10) and the upper plate (20) by establishing a shape connection between the plates (10, 20).

Description

1 TARIFF WELDED CHASSIS POSITIONING / ASSEMBLY INTERFACE TECHNICAL FIELD The invention relates to plate elements used in mounting brackets and support structures, in five different types. through slots arranged in directions and a spool-shaped positioning pin precise alignment, joining and holding in place throughout the welding process It relates to an assembly interface method. The invention specifically concerns the welding of plate elements in vehicle chassis and power unit carrier structures. to ensure alignment and fixation before the process, it must have at least one at least one base plate containing a slot, with a groove on it that is different from the orientation of the slot in question. at least one top plate containing at least one slot arranged in the direction and the aforementioned will allow the slot on the bottom plate to fit into the slot on the top plate. Having an environmental form, establishing a shape connection between the plates, the bottom plate and the top plate are 15 a welded chassis containing at least one roller pin that enables its positioning It relates to the positioning / mounting interface. STATE OF THE ART 20 Vehicle chassis structures include the engine, transmission, axle systems, and suspension components. to which other load-bearing elements are attached, ensuring the structural strength and driving safety of the vehicle. These are the fundamental load-bearing structures that affect factors such as strength, weight, and cost. In accordance with manufacturability requirements, mostly sheet metal and profiles are welded together. and consists of plate elements. The power unit assembly consists of the motor and / or 25 electric motor, gearbox, reducer and related drivetrain components mounted on the chassis This includes connecting the power unit in specific locations. The location of the power unit on the chassis; vibration behavior, load distribution, drivetrain alignment, serviceability and This is important in terms of vehicle performance. Therefore, in power unit assembly... During the manufacturing of the welded brackets and support structures used, the parts must be correct. 30 2 positioning, maintaining their positions throughout the welding process, and desired assembly. Tolerances must be ensured. In current technology, the positioning of welded chassis plates relative to each other requires additional This is achieved using clamps and complex fixture systems. This situation, 5 Fixture design, manufacturing, installation and adjustment costs increase; also the assembly process This results in requiring more time and labor. In the current technique, plate slippage occurs due to thermal effects generated during the welding process. and warping can occur. The positions of the plates before welding are 10 inability to protect the assembly interfaces during the welding process, after welding This leads to deviations from the targeted positional and dimensional tolerances. Therefore... Managing tolerances becomes more difficult, and additional correction or processing is needed. is being born. 15 In the current technique, parts are assembled due to deformations that occur after welding. They can be assembled by applying prestressing during this stage. Prestressed assembly, This can create unwanted internal stresses in parts and connection areas; assembly This can negatively affect compatibility, structural strength, and repeatability. 20 In current technology, assembly interfaces are not sufficiently precise relative to each other before welding. Since it cannot be positioned, in order to adapt to the target positions on the vehicle It may be necessary to use holes with wide tolerances. The use of wide holes means... This increases the risk of the assembly package getting close to unwanted areas, and especially This creates a design constraint in vehicle projects where the footprint is limited. Also, 25 Positioning the insulators near corners or edges is advantageous for installation. This can create negativity. In the current technique, when there is insufficient shape bonding between the plates, the work The loads generated during this process can be transferred directly onto the weld seams. The loads are 30 3 Concentration of stress in direct source areas leads to increased stress in weld joints. This negatively affects the strength and lifespan of the connection. It can have an impact. In conclusion, to solve the aforementioned problems existing in the current technology, 5 The need for a new economical and user-friendly positioning / mounting interface and The inadequacy of existing solutions necessitates an improvement in the relevant technical field. He has done. PURPOSE OF THE INVENTION 10 The present invention aims to eliminate the aforementioned disadvantages and contribute to the relevant technical field. License plates on vehicle mounting brackets, developed to bring new advantages. its elements, precisely with slots in different directions and a spool-shaped pin. It relates to an assembly method for aligning and securing the material during welding. 15 The main purpose of the invention is to connect the bottom plate and the top plate via roller pins. by enabling automatic positioning, which is required for pre-welding assembly. The aim is to reduce the need for additional holders and complex fixtures. Thus, the assembly process... Simplification is occurring, and fixture design, manufacturing, and operating costs are being reduced. 20 Another important purpose of the invention is to create holes located in the centers of the pulley pins. to enable it to be fixed to the welding fixture via this means and thus the welding process The goal is to ensure that the positions of the pins and associated plates are maintained throughout. This The feature allows for the control of deviations that may occur during welding. 25 It contributes. Another important objective of the invention is to prevent plate slippage that may occur after the welding process and By reducing warping, a welded chassis structure with lower deformation is obtained. This is because, thanks to the ability to machine the pin and hole interfaces after welding, the weld is 30. 4 Deviations caused by various factors are eliminated, and the desired position and dimensional tolerances are achieved more easily. It is reached reliably. Another important objective of the invention is to reduce distortions and positional deviations. The aim is to reduce the pre-stresses that occur during the assembly phase. This allows the parts to be stressed down to 5°C. The need for assembly is decreasing; assembly quality, repeatability and structural Compatibility is being improved. Another important objective of the invention is the shape bond created between the pulley pin and the plates. This reduces the direct transfer of work loads to the weld seams. 10 The loads are primarily borne by the relevant plates and interface elements, source reducing stresses on the seams and increasing the structural strength of the connection. It contributes to its increase. Another important objective of the invention is to allow the assembly interfaces to be connected to each other in a controlled manner. By enabling its positioning, large diameter or edge diameters can be compensated for with wide tolerances. The aim is to reduce the need for holes near these areas. Thus, a tight fit. In vehicle and platform designs that require this, packaging space can be used more efficiently. and the positioning of mounting elements such as insulators near sharp corners It can be prevented. 20 The structural and characteristic features and all the advantages of the invention are given in the figures below. This becomes clearer thanks to the detailed explanation written with references to these figures. This will be understood, and therefore the evaluation should also take these forms and detailed explanations into consideration. It needs to be done by taking precautions. 25 FIGURES THAT WILL HELP UNDERSTAND THE INVENTION FIGURE 1; This image shows the chassis positioning / mounting interface related to the subject of the invention. FIGURE 2; Showing the detail of the chassis positioning / mounting interface resulting from the subject of the invention. It is a picture. FIGURE 3; Showing the detail of the chassis positioning / mounting interface based on the subject of the invention. It is a picture. FIGURE 4; Showing the detail of the chassis positioning / mounting interface based on the subject of the invention. It is a picture. FIGURE 5; Showing the detail of the chassis positioning / mounting interface based on the subject of the invention. It is a picture. FIGURE 6; Showing the detail of the chassis positioning / mounting interface based on the subject of the invention. It is a picture. 10 FIGURE 7; Showing the detail of the chassis positioning / mounting interface based on the subject of the invention. It is a picture. FIGURE 8; Showing the detail of the chassis positioning / mounting interface based on the subject of the invention. It is a picture. 15 REFERENCE NUMBERS 10. Bottom Plate 11. Slot 20. Top Plate Nest 21, 20 30. Spool Pin 6 DETAILED DESCRIPTION OF THE INVENTION This detailed description explains the chassis positioning / mounting interface stemming from the subject of the invention. preferred application methods are intended to facilitate a better understanding of the invention. It is explained. 5 The chassis positioning / mounting interface resulting from the subject of the invention generally refers to the first plate. or bottom plate (10), at least one slot (11) created on bottom plate (10), second plate or top plate (20), at least one slot (21) created on the top plate (20) and the positioning of the lower plate (10) and the upper plate (20) relative to each other. It contains at least one pulley pin (30) that provides. Lower plate (10) and upper plate (20), vehicle chassis, power unit carrier, engine mounting bracket, transmission bracket, axle carrier, suspension linkage or similar They can be part of the load-bearing structure. These plates (10, 20) are joined by welding. Sheet metal, plates that need to be held in specific positions relative to each other in order to be joined together. It consists of profile connection plates or similar metal structural elements. The basic working principle of the invention is that the slot (11) on the bottom plate (10) is connected to the top plate (20) 20 by the interaction of the socket (21) and the roller pin (30) on it. The lower plate (10) and the upper plate (20) spontaneously or semi-spontaneously It is based on its positioning. The roller pin (30) is in the slot on the bottom plate (10). By forming a shape connection between the slot (21) on the top plate (11) and the plates (20) the transfer to pre-welding target positions and throughout the welding process This ensures that they maintain their positions as much as possible. 25 Figure 1 shows the general outline of the chassis positioning / mounting interface based on the subject of the invention. The appearance is shown. As can be seen, the bottom plate (10) and the top plate (20) are the reel. They are positioned relative to each other by means of pins (30). Depending on the application, the same 7 Multiple bottom plates (10), top plates (20), slots (11), sockets (21) on the welded structure and A roller pin (30) can be found. Especially for large surface or multi-point mounting. In chassis structures with interface, multiple roller pins in different regions (30) By using this method, the overall geometry of the welded structure can be preserved. 5 The slot (11) located on the bottom plate (10) is connected to the spool pin (30) on the bottom plate (10). to the association and movement of the pulley pin (30) in a specific direction It is an extended opening that allows for linear, curved, stepped, open-mouthed or It can be created in a structure with different cross-sectional widths. Slots are preferred in the application. (11) allows the roller pin (30) to be first associated with the bottom plate (10). providing a relatively wide entry area and along the slot (11) of the reel pin (30). a narrower or more controlled movement that allows it to be slid into the working position It has a region. The entry area of ​​the slot (11) is the lower plate (10) of a specific part of the reel pin (30) 15 to allow it to pass through or be aligned with slot (11) It is formed. The movement area of ​​the slot (11) is around the outer circumference of the roller pin (30). It is designed to be compatible with the narrowed or channeled area. Thus After the roller pin (30) is inserted into the slot (11) from the entry area, the bottom plate (10) can be slid in the direction specified. 20 The socket (21) located on the top plate (20) is the socket (21) of the roller pin (30) with the top plate (20). It is a positioning opening that allows for association. The slot (21), top The pulley is moved in a specific direction by moving the plate (20) towards the pulley pin (30). 25 so that it will grip the pin (30) or be positioned on the roller pin (30). The slot (21) is formed in a different direction from the slot (11) on the bottom plate (10). in the direction of intersecting slot (11) or, depending on the application, in the direction specified by slot (11). It can be arranged in a direction that forms an angle. 8 In one application, slot (11) on the bottom plate (10) and slot (21) on the top plate (20) They are arranged in approximately perpendicular directions to each other. Thus, the bottom plate (10), the pulley to the pin (30) from the first direction; the top plate (20) to the roller pin (30) from the second and different direction It is brought closer or slid from one direction to the other. Slot (11) and the socket (21) are in different directions. Thanks to its location, the bottom plate (10) and the top plate (20) are connected to each other on the roller pin (30) 5 It creates a complementary mechanical positioning effect. The pulley pin (30) is generally formed in a cylindrical and pulley shape. It is a positioning element. The roller pin (30) is on an axis approximately perpendicular to the plate planes. It has an extending body. On the outer circumference of the roller pin (30), the bottom plate (10) 10 It allows the slot (11) on it and the slot (21) on the top plate (20) to fit. at least one circumferential channel, narrowed diameter region, neck region or plate giving There is a reception area. Above the circumferential channel or narrowed diameter region of the roller pin (30) and / or 15 Underneath, there may be shoulders, flanges, or retaining surfaces with a larger diameter. This shoulder or flanges, axis of the roller pin (30) of the lower plate (10) and the upper plate (20). It restricts separation in that direction, in other words, perpendicular to the plate plane. Thus, the bottom plate (10) and the top plate (20) are not only in a horizontal or planar position, It can also be controlled in accordance with the plate thickness. 20 The roller pin (30) may contain a single circumferential channel, or the bottom plate (10) and the top plate. (20) accept multiple channels or plates for the purpose of positioning at different levels It may also have a region. In multi-channel applications, the bottom plate (10), reel the first channel or acceptance area at the lower level of the pin (30); the upper plate (20) is 25 second channel or acceptance area at the upper level of the spool pin (30) Thus, the plates (10, 20) are positioned axially on the roller pin (30). They can be separated and held in a controlled and repeatable position. 9 Figure-2 shows an application for joining the bottom plate (10) with the roller pin (30). It is shown. At this stage, the roller pin (30) is in the slot (11) on the bottom plate (10) It is associated with slot (11) from the entry area. The outer diameter of the roller pin (30) or shoulder part, large enough to pass through the slot (11) entrance area; reel pin (30) The circumferential channel or narrowed area can be kept within the movement area of ​​the slot (11) 5 It is sized accordingly. After the roller pin (30) is placed in the entry area of ​​the slot (11), the bottom plate (10) The roller pin (30) is moved relative to the other. This movement causes the roller pin (30) slot sliding along (11), sliding the bottom plate (10) on the roller pin (30) or 10 This can be achieved by moving both elements relative to each other. Pulley When the pin (30) is moved to the working position along the slot (11), the bottom plate (10) pulley The pin (30) is placed in the circumferential channel or plate acceptance area. In Figure-3 and Figure-4, the roller pin (30) is 15 through the slot (11) on the bottom plate (10). The working position is shown. The roller pin (30) is inside slot (11). After the movement, it forms a shape bond with the bottom plate (10). This shape bond is formed by the bottom plate (10) It restricts its movement in certain directions relative to the roller pin (30). In particular shoulder or flange areas of the roller pin (30), roller pin (30) of the bottom plate (10) It prevents or reduces its deviation along the axis. 20 The bottom plate (10) is made possible before welding thanks to the relationship between the slot (11) and the roller pin (30). It is taken to its initial position. The length, width, geometry and reel of the slot (11) Dimensions of the relevant channel of the pin (30); movement required during assembly. will provide freedom, but will avoid unwanted deviations in the working position 25 It is selected in a way that will limit it. Thus, an additional holder is added during pre-welding assembly. or the need to use a large number of complex fixture elements is reduced. Figure 5 shows the association of the top plate (20) with the roller pin (30). Bottom plate (10) is put into working position on the roller pin (30) via slot (11). After being taken, the top plate (20) will be aligned with the slot (21) on it and the roller pin (30). It is positioned as follows: The top plate (20) is positioned in the open side or extension direction of the housing (21). It is brought close to the pulley pin (30) along and the socket (21) is inserted into the corresponding channel of the pulley pin (30) 5 or they are taken to the license plate acceptance area. The housing (21) can hold the housing of the roller pin (30), the narrowed diameter area or the relevant circumference. It is sized to accept the channel. The top plate (20) is sized to accept the channel via its slot (21). When the pulley pin (30) is brought to the target position, the shoulder of the pulley pin (30) is 10 or flange areas also limit the axial displacement of the top plate (20). Thus, the upper plate (20) is connected to the lower plate (10) on the roller pin (30), controlled and It is held in a repeatable position. The slot (11) on the bottom plate (10) and the slot (21) on the top plate (20) are different 15 Arrangement in different directions is one of the key features of the invention. This different orientation Thanks to this, the bottom plate (10) and the top plate (20) move freely in a single direction relative to each other. They are positioned in such a way that they cannot slip. The tendency of one plate to move is different from the other. The shape connection formed by the bearing (21) or slot (11) direction of the plate and the roller pin (30) It is limited by. 20 In other words, mounting movement of the bottom plate (10) in the direction of slot (11). While it can be performed, the mounting movement of the top plate (20) in the direction of the slot (21) It can perform this. However, both plates (10, 20) work with the roller pin (30). When related in position, the geometries of slot (11) and slot (21) in different directions 25 This structure determines the relative positions of the plates. This makes it easier to hold the parts in the correct position beforehand. 11 Figure-6 shows an application involving multiple roller pins (30). A wide range of chassis element, power unit bracket or multi-point carrier structure with bottom plate (10) When the top plate (20) needs to be positioned precisely relative to each other, multiple slots (11), socket (21) and pulley pin (30) can be used. Each pulley pin (30) is suitable for the respective While providing local positioning in the assembly area; multiple roller pins (30) 5 When used together, the overall position, angular state, and It maintains its planar alignment more effectively. The use of more than one roller pin (30) can cause problems during welding. It contributes to reducing rotational, torsional, shearing, and warping tendencies. 10 Especially in large plate elements or chassis containing multiple weld seams. In their structures, the pulley pins (30) located in different regions, the bottom plate (10) and the top plate (20) helping them maintain their targeted relative positions during the resource period is happening. 15 In Figure-7, the assembly of the bottom plate (10), top plate (20) and roller pin (30) is complete. The condition is shown. In this case, the bottom plate (10) passes through the slot (11) to the roller pin (30) positioned on it; the top plate (20) is the same roller pin (30) through its housing (21) It is associated with the circumferential form of the roller pin (30), the roller of the plates (10, 20). The pin (30) ensures that it is held on; slot (11) and socket (21) hold the plates on certain 20 This allows for positioning along the mounting lines. Figure 8 shows an example cross-sectional view of the assembly interface. In its appearance, the first plate of the roller pin (30) through the slot (11) of the bottom plate (10) 25 is placed in the acceptance area, and the upper plate (20) is placed in its housing (21) and the roller pin is 25 (30) It is seen that the second plate is kept in the acceptance area. The spool pin (30) plate The shoulders located above and below the acceptance zones, the lower plate (10) and the upper plate (20) prevents the roller pin (30) from coming out in the axial direction. 12 At the center of the roller pin (30) is a central connection that allows it to be attached to the welding fixture. There is a hole. This central hole can be a slip hole, a blind hole, or a threaded hole. It can be formed in the form of a screw hole, stud hole, or similar fastening interface. The central hole lies along the axis of the roller pin (30) and the roller pin (30) It ensures that it is attached to the corresponding fastening element in the welding fixture. 5 Before welding, the roller pin (30) is inserted into the welding fixture through its central hole. It is fixed. The pulley pin (30) is attached to the fixture; the pulley pin (30), bottom the plate (10) and the top plate (20) remain in the desired positions during the welding process It contributes to mitigating thermal expansion and contraction that may occur during welding. can occur due to tensile force, vibration, shear and similar effects Positional deviations are reduced. In the assembly method covered by the invention, the bottom plate (10) is first, the relevant part of the welded structure It is placed in the area or at the starting position on the source fixture. 15 Then the spool pin (30) is inserted into the slot (11) on the bottom plate (10). It is passed through or aligned with slot (11). The bottom plate (10) with the roller pin (30) by moving relative to each other, the roller pin (30) is in the working position along the slot (11) is being brought in. 20 In the next step, the top plate (20) will be aligned with the housing (21) and the roller pin (30). The lower plate (10) is placed on or in a position associated with the lower plate (10). The upper plate (20), The housing (21) is moved towards the roller pin (30) and the housing (21) is moved towards the roller pin (30) The pin (30) is placed in the appropriate circumferential channel or plate acceptance area. Thus The slots (11) and 25 on the bottom plate (10) and top plate (20), spool pin (30) in different directions. It is positioned via the socket (21). After the bottom plate (10), top plate (20) and pulley pin (30) are assembled, the pulley The pin (30) is fixed to the welding fixture through the central hole. Welding 13 The fixture determines the target spatial position of the pulley pin (30); the pulley pin (30) the bottom plate (10) and the top plate (20) are connected in their respective positions via slot (11) and slot (21). It helps to stay there. In the next stage, there is a 5 between the bottom plate (10), the top plate (20) and any other supporting elements. The planned welding process is being carried out. The welding process includes MIG / MAG welding, TIG welding. welding method: laser welding, resistance welding, spot welding, or other suitable method for the application. This can be achieved through a welding method. The working principle of the invention is based on a specific source. It is not dependent on the method, a particular plate material, or a specific vehicle type. 10 After the welding process, the welded structure is removed from the welding fixture. Welding elimination of limited geometric deviations that may occur during the process or the final In order to achieve assembly precision, the center hole of the roller pin (30) and / or The final processing of the corresponding mounting interfaces on the bottom plate (10) and the top plate (20) It can be subjected to the operation. For example, the central hole on the roller pin (30), the final 15 The fastener can be machined to the appropriate diameter or tolerance. Similarly, the vehicle used for power group connection, insulator connection or bolted mounting on it. The relevant holes and surfaces can be machined to the final tolerances. In the invention, there is only one weld between the roller pin (30), the bottom plate (10) and the top plate (20). It does not function as a pre-positioning element. Roller pin (30), slot Thanks to the shape connection it forms with (11) and the socket (21), it emerges during the study also the concentration of any forces that may arise directly on the weld seams It reduces. In other words, at least part of the relevant loads are on the roller pin (30), slot (11) mechanical interaction between edges, slot (21) surfaces and plate elements 25 It is met through this channel. In this way, weld seams cease to be merely the main load-bearing element and become shape-dependent components. It becomes part of a connecting structure supported by a pulley pin. The loads are attached to the roller pin. 14 Distribution via (30), slot (11) and slot (21) may occur in the source regions reducing stress concentrations and increasing the structural strength of the connection. It contributes to its improvement. Another advantage provided by the invention is that the bottom plate (10) and the top plate (20) are 5 before welding. The advantage is that it can be positioned more precisely and controllably. This situation, the source subsequently, holes that provide large-scale tolerance compensation at assembly interfaces This reduces the need for more precise positioning of mounting holes. Thanks to this, the in-vehicle packaging space can be used more efficiently; insulator, connector bolts or similar mounting elements to plate edges, corners or limited 10 This prevents them from getting too close to residential areas. The invention also covers plate slippage and warping that occurs during the welding process. It contributes to reducing their effects. Bottom plate (10) slot (11), top plate (20) Since the housing (21) is positioned on the roller pin (30), the plates are welded 15 Their previously determined relative positions are preserved more effectively. This situation, the need to forcefully assemble the parts during the post-welding assembly stage This reduces; consequently, unwanted internal components that may arise from prestressed assembly. It limits the occurrence of stresses. 20 As a result, the chassis positioning / mounting interface derived from the subject of the invention; bottom plate (10) between the slot (11) on it, the slot (21) on the top plate (20) and the spool pin (30) Thanks to the resulting bonding, it is more feasible in welded chassis and power unit assembly structures. an economical, more repeatable, more precise and more durable assembly solution It presents. The invention includes a motor, transmission, electric motor, gearbox, axle, and suspension. 25 It can be used in welded carrier structures to which vehicle components such as these are attached. All welded plates and carrier structures must be aligned with each other in a controlled manner. It can also be used in applications. The scope of protection in this application is defined in the claims section and is explicitly stated above. The examples given cannot be limited to those described; a person skilled in the technique can make a difference in the invention. the innovation presented can be achieved by using similar structures and / or This structure can also be applied to other similar fields using the same technology. It is clear that it can be implemented. Therefore, such structures foster innovation and especially technology. 5 It is also obvious that it will lack the criterion of exceeding the known situation.

Claims

16 REQUESTS 1- Welding process of plate elements in vehicle chassis and power unit carrier structures. prior alignment and securing of the welded chassis positioning / assembly 5 It relates to the interface and its feature is; - at least one subplate (10) with at least one slot (11) on it, on it in a direction different from the direction of the slot (11) at least one top plate (20) containing at least one arranged slot (21), - slot (11) on the lower plate (10) and slot 10 on the upper plate (20) having an environmental form that will allow the nest (21) to be placed, by establishing a shape connection between plates (10, 20) the bottom plate (10) and the top plate (20) At least one roller pin (30) that enables positioning. It is characterized by its inclusion. 15 2- It is a welded chassis positioning / mounting interface conforming to Claim 1, and its features are: on the outer circumference of the mentioned roller pin (30), the slot (11) on the bottom plate (10) and at least one circumferential slot (21) that allows the slot on the top plate (20) to fit. channel, narrowed diameter area or plate acceptance area, plates (10, 20) plate 20 It is the characterization of the situation. 3- It is a welded chassis positioning / mounting interface conforming to Claim 1, and its features are: The slot (11) located on the aforementioned bottom plate (10), the spool pin (30) bottom plate (10) with a wide entry area that allows it to be associated with it for the first time, reel 25 a narrowed movement that allows the pin (30) to be slid into the working position It is characterized by the fact that it includes the region. 4- It is a welded chassis positioning / mounting interface in accordance with Claim 1, and its features are: The slot (21) located on the mentioned top plate (20) will grip the pulley pin (30). It has an open-mouthed structure and aligns with the slot (11) on the bottom plate (10). It is characterized by containing a positioning gap in the intersecting direction. 17 5- It is a welded chassis positioning / mounting interface in accordance with Claim 2, and its features are: the first lower level where the mentioned pulley pin (30) is positioned on the lower plate (10) channel or acceptance area, the second upper level where the top plate (20) is positioned. Areas separated axially, such as channel or reception zones. 5 It is characterized by its inclusion. 6- It is a welded chassis positioning / mounting interface in accordance with Claim 5, and its features are: The mentioned roller pin (30) extends along the central axis and the welding process A hole that allows the pin (30) to be fixed to the welding fixture along the blind 10 by containing a central hole in the form of a hole, threaded hole, screw hole or stud hole It is the characterization of the situation. 7- It is a welded chassis positioning / mounting interface in accordance with Claim 1, and its feature is; wide Torsional, shear, and 15-degree weld-induced stresses in multi-surface or multi-point chassis carrier structures. To prevent collision tendencies, local positioning in different regions. by containing multiple groups of roller pins (30), slots (11) and sockets (21) It is the characterization of the situation. 20

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