Self-clinching device and welding system for railway wagon components

Abstract

The application discloses a self-pressing device and system for a railway wagon component, and belongs to the technical field of railway wagon manufacturing. The self-pressing device for the railway wagon component is used for being installed on a base, and the base is used for placing the railway wagon component; the self-pressing device comprises a pressing arm, a plurality of pressing portions and a driving portion; the plurality of pressing portions are slidably arranged on the pressing arm, and the pressing ends of the pressing portions are suitable for applying force to the railway wagon component; the driving portion is used for being detachably installed on the base and is in transmission connection with the pressing arm, and is used for driving the pressing arm to move between a first position and a second position; when the pressing arm is in the first position, the pressing ends of the pressing portions abut against the railway wagon component; when the pressing arm is in the second position, the pressing ends of the pressing portions are separated from the railway wagon component. Through the sliding design of the pressing portions on the pressing arm, the problem that the fixed pressing portion in the prior art cannot deal with insufficient pressing in areas such as a side column position deviation, a side wall and a side column butt joint and the like, and thus leads to poor welding quality in the subsequent welding is solved.

Description

Technical Field

[0001] This application belongs to the field of railway freight car manufacturing technology, and in particular relates to a self-pressurizing device for railway freight car components. Background Technology

[0002] In the field of railway freight car manufacturing technology, the welding and assembly of side walls and side columns is one of the key processes. It is necessary to ensure a tight fit between the side wall panels and multiple side columns in order to achieve high-quality welds.

[0003] In related technologies, self-clamping devices typically employ a fixed clamping arm structure, where multiple clamping components (such as cylinders or pneumatic cylinders) are rigidly mounted on predetermined positions of the clamping arm via bolts or welding. A drive unit propels the entire clamping arm to move, achieving clamping or separation of the workpiece. However, in practical applications, the position of the side pillars may vary slightly due to assembly deviations or transmission errors in previous processes, and different vehicle models have varying side pillar structural dimensions and spacing. Since these clamping components cannot adaptively adjust their position, insufficient clamping occurs in some areas, severely impacting the tightness of the joint and the quality of subsequent welding. Utility Model Content

[0004] This application aims to at least solve the technical problem in the prior art where the crimping part results in insufficient compression in some areas, which seriously affects the tightness of the joint and the quality of subsequent welding.

[0005] In a first aspect, this application provides a self-pressurizing device for railway freight car components, for mounting on a base for placing railway freight car components; the self-pressurizing device includes a pressure arm, multiple pressing parts, and a driving part; Multiple crimping portions are slidably disposed on the pressure arm, and the crimping ends of the crimping portions are adapted to apply force to the railway freight car component; The drive unit is detachably mounted on the base and drivenly connected to the pressure arm, for driving the pressure arm to move between a first position and a second position. When the pressure arm is in the first position, the crimping end of the crimping part abuts against the railway freight car component. When the pressure arm is in the second position, the crimping end of the crimping part separates from the railway freight car component.

[0006] According to one embodiment of this application, the drive unit includes a support member and a telescopic member; The support member is detachably mounted on the base, the end of the pressure arm is rotatably mounted on the support member, the telescopic member is provided on the support member, and the telescopic end of the telescopic member is hinged to the end of the pressure arm.

[0007] According to one embodiment of this application, the self-pressurizing device further includes a first limiting mechanism; The first limiting mechanism is located on one side of the support member. When the pressure arm is in the first position, the first limiting mechanism abuts against the pressure arm.

[0008] According to one embodiment of this application, the first limiting mechanism includes an elastic element; The elastic element is located directly below the pressure arm. When the pressure arm is in the first position, the pressure arm overlaps the elastic element, and the elastic element is compressed and contracts.

[0009] According to one embodiment of this application, the first limiting mechanism further includes a safety block; The safety block is located directly below the pressure arm and spaced apart from the elastic element. When the pressure arm is in the first position, the pressure arm overlaps the elastic element and the safety block, and the elastic element is compressed and contracted.

[0010] According to one embodiment of this application, the self-pressurizing device further includes a second limiting mechanism; The end of the pressure arm is also fixed with an abutment member; The second limiting mechanism includes a driving member and a limiting member; the driving member is located on the other side of the support member, and the driving end of the driving member is connected to the limiting member for driving the limiting member to move between a third position and a fourth position. When the limiting member is in the third position, the pressure arm is in the first position, and the limiting member abuts against the abutting member; when the limiting member is in the fourth position, the pressure arm is in the second position, and the limiting member separates from the abutting member.

[0011] According to one embodiment of this application, when the pressure arm is in the first position, the pressure arm is configured to be arranged along the width direction of the base; and / or, the angle between the pressure arm in the first position and the pressure arm in the second position is 14°.

[0012] According to one embodiment of this application, the pressure arm is provided with a guide groove; the pressing part includes a guide mounting seat and a cylinder; The guide mounting seat is slidably connected along the guide groove, the cylinder is detachably connected to the guide mounting seat, the pressing end of the cylinder is adapted to abut against the railway freight car component to apply force; and / or, the pressing end of the pressing part is connected to a universal pressure head.

[0013] Secondly, this application provides a welding system, including a base, a welding apparatus, and a self-pressurizing device; The base is used to place railway freight car components; There are multiple self-pressurizing devices, which are arranged at intervals along the length of the base and are arranged opposite to each other along the width of the base. The welding apparatus is suitable for welding the railway freight car components.

[0014] According to one embodiment of this application, a conveyor belt is provided on the base, the conveyor belt is arranged along the length direction of the base, the conveyor belt is used to place railway freight car parts, and is adapted to transport the railway freight car parts.

[0015] In summary, this application includes at least one of the following beneficial technical effects: This application solves the problem that fixed pressing parts in related technologies cannot cope with issues such as side pillar position deviation and insufficient pressing at the joint between the side wall and the side pillar, which leads to poor welding quality. At the same time, the detachable design of the drive unit reduces the adjustment time of the overall position of the self-pressing device when changing models on the production line.

[0016] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is one of the structural schematic diagrams of the self-pressurizing device provided in the embodiments of this application; Figure 2 This is a schematic diagram of the structure of the self-pressurizing device provided in this application when the support and telescopic components are deviated from a certain angle; Figure 3 yes Figure 2 A magnified view of part A in the middle; Figure 4 This is a second schematic diagram of the self-pressurizing device provided in the embodiments of this application; Figure 5 This is the third structural schematic diagram of the self-pressurizing device provided in the embodiments of this application.

[0018] Figure label: 100. Pressure arm; 110. Abutment component; 120. Guide groove; 200. Crimping part; 210. Guide mounting seat; 220. Cylinder; 230. Universal pressure head; 300. Drive unit; 310. Support component; 320. Telescopic component; 410. First limiting mechanism; 420. Second limiting mechanism; 411. Elastic element; 412. Safety block. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0020] In the field of railway freight car manufacturing, the welding and assembly of side wall panels and side pillars is a core technological step to ensure the overall structural strength and operational safety of the vehicle. Its quality directly affects the tightness and durability of the weld. To ensure the welding effect, the side wall panels must be tightly fitted to the multiple side pillars.

[0021] Self-pressing devices in related technologies generally adopt a fixed pressing arm structure. This structure rigidly fixes multiple pressing parts (such as cylinders or air cylinders) to the preset position of the pressing arm by bolt fastening or welding. The driving unit then controls the overall movement of the pressing arm to complete the pressing or separation operation of the workpiece.

[0022] However, in actual production environments, due to cumulative errors in preceding assembly processes and minor offsets during material transport, the actual installation position of the side pillars may vary considerably. Furthermore, the significant differences in the geometric dimensions and spacing of the side pillars across different vehicle models prevent the fixed-installation pressing part from dynamically adjusting its lateral coordinates according to the workpiece position during the pressing process. This can cause localized pressure imbalances, resulting in gaps in some areas due to insufficient pressing, severely impacting the bonding quality and potentially leading to weld defects such as incomplete welds and porosity.

[0023] The following is for reference. Figures 1-5 This application describes a self-pressurizing device for railway freight car components according to embodiments thereof.

[0024] like Figure 1 As shown, a self-pressurizing device for railway freight car components is used to be installed on a base for placing railway freight car components, which may be side walls and side columns; the self-pressurizing device includes a pressure arm 100, multiple pressing parts 200 and a driving part 300; Multiple crimping portions 200 are slidably disposed on the crimping arm 100, and the crimping ends of the crimping portions 200 are adapted to apply force to the railway freight car component; it should be noted that the crimping arm 100 can be arranged laterally on the base, and the lateral arrangement direction of the crimping arm 100 can be perpendicular to the transmission direction of the railway freight car component along the base.

[0025] The drive unit 300 is detachably mounted on the base and is connected to the pressure arm 100 for driving the pressure arm 100 to move between a first position and a second position. When the pressure arm 100 is in the first position, the pressing end of the pressing part 200 abuts against the railway freight car component. When the pressure arm 100 is in the second position, the pressing end of the pressing part 200 separates from the railway freight car component.

[0026] The working principle of this embodiment is as follows: The pressure arm 100 serves as a basic support frame, bearing multiple slidingly installed pressing parts 200 and providing a stable motion platform for the pressing process. The multiple pressing parts 200 can adaptively slide and adjust their positions along the length of the pressure arm 100 according to the size of the railway freight car component. For example, the pressing part 200 can move to a position closer to the side column on the side wall for pressing, while simultaneously adjusting its clamping force to ensure a tight fit at the joint between the side wall and the side column, avoiding insufficient clamping in this area, which would affect the tightness of the joint and the subsequent welding quality.

[0027] The drive unit 300 is detachably mounted on the base and is drively connected to the pressure arm 100, used to drive the pressure arm 100 to move between a first position and a second position. When the pressure arm 100 is in the first position, the pressing end of the pressing part 200 can abut against the railway freight car component, or the pressing end of the pressing part 200 applies a certain clamping force to the railway freight car component to complete the clamping operation; when the pressure arm 100 is in the second position, the pressing end of the pressing part 200 separates from the railway freight car component, facilitating the movement of the railway freight car component for replacement of the next railway freight car component. This movement mechanism, combined with the sliding characteristics of the pressing part 200, allows the device to quickly adapt to the needs of different train models.

[0028] In summary, this application solves the problem that the fixed pressing part 200 in related technologies cannot handle issues such as side pillar position deviations and insufficient pressing at the joint between the side wall and the side pillar, resulting in poor welding quality, by using the sliding design of the pressing part 200 on the pressing arm 100. Furthermore, the detachable design of the drive part 300 simplifies the adjustment process, reducing the adjustment time for the overall position of the self-pressing device when changing vehicle models on the production line.

[0029] like Figure 2 and Figure 3 As shown, in some embodiments, the drive unit 300 includes a support member 310 and a telescopic member 320; The support member 310 is detachably mounted on the base, the end of the pressure arm 100 is rotatably mounted on the support member 310, the telescopic member 320 is provided on the support member 310, and the telescopic end of the telescopic member 320 is hinged to the end of the pressure arm 100.

[0030] The support member 310 is detachably mounted on the base, enabling the entire drive unit 300 to be quickly adjusted in position during the production of different vehicle models. The end of the pressure arm 100 is connected to the support member 310 via a rotating joint, allowing the pressure arm 100 to rotate freely around the center of the rotating joint. That is, when the pressure arm 100 is in the first position, the pressure arm 100 is set in a horizontal direction; when the pressure arm 100 is in the second position, the pressure arm 100 opens upward at a certain angle.

[0031] In actual implementation, when the pressure arm 100 is in the first position, the pressure arm 100 is configured to be arranged along the width direction of the base; and / or, the angle between the pressure arm 100 being in the first position and the pressure arm 100 being in the second position is 14°.

[0032] like Figure 3 As shown, in some embodiments, the self-pressurizing device further includes a first limiting mechanism 410; The first limiting mechanism 410 is disposed on one side of the support member 310. The first limiting mechanism 410 is a structural component used to limit the range of motion of the pressure arm 100. When the pressure arm 100 is in the first position, the first limiting mechanism 410 abuts against the pressure arm 100.

[0033] Furthermore, the first limiting mechanism 410 includes an elastic element 411; The elastic element 411 is located directly below the pressure arm 100. When the pressure arm 100 is in the first position, the pressure arm 100 overlaps the elastic element 411, and the elastic element 411 is compressed and contracted.

[0034] The elastic element 411 can be a component with elasticity and resilience, and can be implemented using structures such as springs, rubber pads, or air bladders. In practical applications, the elastic element 411 is designed to provide a cushioning effect, thereby reducing the rigid impact that may occur when the pressure arm 100 moves from the second position to the first position.

[0035] Furthermore, in some embodiments, the first limiting mechanism 410 further includes a safety block 412; The safety block 412 is located directly below the pressure arm 100 and spaced apart from the elastic member 411. When the pressure arm 100 is in the first position, the pressure arm 100 overlaps the elastic member 411 and the safety block 412, and the elastic member 411 is compressed and contracted.

[0036] Safety block 412 refers to a rigid support, which can be implemented using a structure with sufficient load-bearing capacity, such as a metal block or a high-strength composite material block. Its purpose is to prevent excessive rigid collision impact during the movement of the pressure arm 100 from the second position to the first position, and to prevent the elastic element 411 from failing, thereby reducing the risk of collision between the pressing end of the pressing part 200 and the railway freight car component.

[0037] like Figure 4 As shown, in some embodiments, the self-pressurizing device further includes a second limiting mechanism 420; The end of the pressure arm 100 is also fixed with an abutment member 110; The second limiting mechanism 420 includes a driving member and a limiting member; the driving member is located on the other side of the support member 310, and the driving end of the driving member is connected to the limiting member for driving the limiting member to move between a third position and a fourth position. When the limiting member is in the third position, the pressure arm 100 is in the first position, and the limiting member abuts against the abutting member 110; when the limiting member is in the fourth position, the pressure arm 100 is in the second position, and the limiting member separates from the abutting member 110.

[0038] In detail, when the pressure arm 100 needs to be held in the first position, the drive unit drives the limiting member to move to the third position. At this time, the limiting member and the abutment member 110 form rigid contact, thereby firmly locking the pressure arm 100 in the pressed state. This locking mechanism can effectively resist external vibration or external force interference, ensuring that the pressing end of the pressing part 200 applies continuous and stable force to the railway freight car component. When it is necessary to switch to the second position, the drive unit drives the limiting member to move to the fourth position, so that the limiting member and the abutment member 110 are completely separated, thereby releasing the degree of freedom of the pressure arm 100, facilitating the separation of the pressing end of the pressing part 200 from the railway freight car component, and facilitating the movement of the railway freight car component for replacement of the next railway freight car component.

[0039] like Figure 4 and Figure 5 As shown, in actual operation, the pressure arm 100 is provided with a guide groove 120; the pressing part 200 includes a guide mounting seat 210 and a cylinder 220; The guide mounting base 210 is slidably connected along the guide groove 120, the cylinder 220 is detachably connected to the guide mounting base 210, the pressing end of the cylinder 220 is adapted to abut against the railway freight car component to apply force; and / or, the pressing end of the pressing part 200 is connected to a universal pressure head 230.

[0040] This application also discloses a welding system, including a base, a welding apparatus, and a self-pressurizing device; The base is used to place railway freight car components; There are multiple self-pressurizing devices, which are arranged at intervals along the length of the base and are arranged opposite to each other along the width of the base. The welding apparatus is suitable for welding the railway freight car components.

[0041] In some embodiments, a conveyor belt is provided on the base, the conveyor belt is arranged along the length of the base, the conveyor belt is used to place railway freight car parts, and is adapted to transport the railway freight car parts.

[0042] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0043] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0044] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0045] In the description of this application, "multiple" means two or more.

[0046] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0047] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0048] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A self-pressurizing device for railway freight car components, for mounting on a base for placing the railway freight car components; characterized in that, The self-pressurizing device includes a press arm, multiple pressing parts, and a drive part; Multiple crimping portions are slidably disposed on the pressure arm, and the crimping ends of the crimping portions are adapted to apply force to the railway freight car component; The drive unit is detachably mounted on the base and drivenly connected to the pressure arm, for driving the pressure arm to move between a first position and a second position. When the pressure arm is in the first position, the crimping end of the crimping part abuts against the railway freight car component. When the pressure arm is in the second position, the crimping end of the crimping part separates from the railway freight car component.

2. The self-pressurizing device according to claim 1, characterized in that, The drive unit includes a support member and a telescopic member; The support member is detachably mounted on the base, the end of the pressure arm is rotatably mounted on the support member, the telescopic member is provided on the support member, and the telescopic end of the telescopic member is hinged to the end of the pressure arm.

3. The self-pressurizing device according to claim 2, characterized in that, The self-pressurizing device also includes a first limiting mechanism; The first limiting mechanism is located on one side of the support member. When the pressure arm is in the first position, the first limiting mechanism abuts against the pressure arm.

4. The self-pressurizing device according to claim 3, characterized in that, The first limiting mechanism includes an elastic element; The elastic element is located directly below the pressure arm. When the pressure arm is in the first position, the pressure arm overlaps the elastic element, and the elastic element is compressed and contracts.

5. The self-pressurizing device according to claim 4, characterized in that, The first limiting mechanism also includes a safety block; The safety block is located directly below the pressure arm and spaced apart from the elastic element. When the pressure arm is in the first position, the pressure arm overlaps the elastic element and the safety block, and the elastic element is compressed and contracted.

6. The self-pressurizing device according to claim 2, characterized in that, The self-pressurizing device also includes a second limiting mechanism; The end of the pressure arm is also fixed with an abutment member; The second limiting mechanism includes a driving member and a limiting member; the driving member is located on the other side of the support member, and the driving end of the driving member is connected to the limiting member for driving the limiting member to move between a third position and a fourth position. When the limiting member is in the third position, the pressure arm is in the first position, and the limiting member abuts against the abutting member; when the limiting member is in the fourth position, the pressure arm is in the second position, and the limiting member separates from the abutting member.

7. The self-pressurizing device according to claim 1, characterized in that, When the pressure arm is in the first position, the pressure arm is configured to be arranged along the width direction of the base; and / or, the angle between the pressure arm in the first position and the pressure arm in the second position is 14°.

8. The self-pressurizing device according to claim 1, characterized in that, The pressure arm is provided with a guide groove; the pressing part includes a guide mounting seat and a cylinder; The guide mounting seat is slidably connected along the guide groove, the cylinder is detachably connected to the guide mounting seat, the pressing end of the cylinder is adapted to abut against the railway freight car component to apply force; and / or, the pressing end of the pressing part is connected to a universal pressure head.

9. A welding system, characterized in that, Includes a base, a welding device, and a self-pressurizing device as described in any one of claims 1-8; The base is used to place railway freight car components; There are multiple self-pressurizing devices, which are arranged at intervals along the length of the base and are arranged opposite to each other along the width of the base. The welding apparatus is suitable for welding the railway freight car components.

10. The welding system according to claim 9, characterized in that, The base is provided with a conveyor belt, which is arranged along the length of the base. The conveyor belt is used to place railway freight car parts and is suitable for transporting the railway freight car parts.

Images