An automatic rail vehicle grinding apparatus

Abstract

The present application provides a kind of railway vehicle automatic polishing equipment, belongs to railway vehicle polishing technical field, including mobile lifting mechanism, two horizontal transfer modules, two polishing mechanisms, two automatic locking mechanisms and control cabinet.Mobile lifting mechanism includes mobile trolley and hydraulic lifting platform;Two horizontal transfer modules are respectively symmetrically arranged on the left and right sides of the upper end surface of hydraulic lifting platform;Two polishing mechanisms are correspondingly installed on two horizontal transfer modules, and polishing mechanism includes polishing mounting seat, power motor and polishing working part;Two automatic locking mechanisms are respectively symmetrically arranged on the left and right sides of hydraulic lifting platform;Control cabinet is built-in control system, and the top of control cabinet is provided with a plurality of control buttons, and the side wall of control cabinet is provided with operation screen.The railway vehicle automatic polishing equipment provided by the present application reduces labor intensity, improves efficiency, avoids noise and dust to cause harm to human body, avoids the harm that may be caused to personnel.

Description

Technical Field

[0001] This invention belongs to the field of railway vehicle grinding technology, and more specifically, relates to an automatic grinding device for railway vehicles. Background Technology

[0002] Open wagons for railway freight are mainly used for transporting bulk goods such as coal, ore, mining construction materials, timber, and steel. The fasteners and the lower side beams of the wagons are connected by a riveted structure. During operation, open wagons are affected by factors such as weather and the material of the goods, resulting in a large amount of rust and corrosion at the joint between the fasteners and the lower side beams of the wagons. The rust is hard and difficult to remove.

[0003] When overhauling open wagons, it is necessary to disassemble and replace the latches and lower side beams of the wagon body with new ones. To ensure the assembly gap and riveting quality of the new latches, it is usually necessary to manually grind away the rust at the assembly location of the latches with a hand-held abrasive wheel. In some cases, the joint between the latches and the lower side beam is severely corroded, requiring electric welding to smooth the corroded area and then grinding it smooth with a hand-held abrasive wheel to ensure that the latches and lower side beams fit tightly and meet the required gap after assembly. This manual hand-held grinding is labor-intensive, inefficient, and the noise and dust from close-range operation are harmful to the human body. Improper operation can also lead to the breakage of the abrasive wheel, causing harm to personnel. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic grinding device for railway vehicles, which aims to solve the problems of high labor intensity, low efficiency, and harmful noise and dust from close-range operation when manually grinding with a hand-held grinding wheel. Improper operation can also lead to grinding wheel breakage and harm to personnel.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: to provide an automatic grinding device for railway vehicles, comprising: A mobile lifting mechanism, comprising a mobile trolley and a hydraulic lifting platform disposed on the upper surface of the mobile trolley; Two transverse modules are symmetrically arranged on the left and right sides of the upper end face of the hydraulic lifting platform. Two grinding mechanisms are installed on two transverse modules in a one-to-one correspondence. Each grinding mechanism includes a grinding mounting base, a power motor, and a grinding working part. The grinding mounting base is disposed on the corresponding transverse module, the power motor is disposed on the grinding mounting base, and the grinding working part is mounted on the drive end of the power motor. The power motor is used to drive the grinding working part to rotate. Two automatic locking mechanisms are symmetrically arranged on the left and right sides of the hydraulic lifting platform. Each automatic locking mechanism includes a linear drive assembly and a locking rod. The rear end of the locking rod is connected to the front end of the linear drive assembly, and the front end of the locking rod has a hook-shaped locking part that bends upward and backward. A control cabinet has a built-in control system. The top of the control cabinet is equipped with multiple control buttons that are electrically connected to the control system. The multiple control buttons are electrically connected to the transverse module, the grinding mechanism, and the automatic locking mechanism, respectively. The side wall of the control cabinet is equipped with an operation screen that is electrically connected to the control system. The operation screen is electrically connected to the transverse module, the grinding mechanism, and the automatic locking mechanism, respectively.

[0006] In one possible implementation, the bottom of the mobile trolley is provided with multiple casters, at least one of the casters is provided with a stopper, and the hydraulic lifting platform is provided with a connecting chain, the connecting chain connecting the stopper.

[0007] In one possible implementation, a crossbeam support is provided on the rear side of the upper end face of the hydraulic lifting platform, and the two ends of the crossbeam support extend to the outer side of the hydraulic lifting platform, respectively. The two transverse modules are respectively installed laterally at both ends of the upper end face of the crossbeam support.

[0008] In one possible implementation, the lateral movement module includes: A transverse sliding rail is installed laterally on one side of the upper end face of the crossbeam support; A slide table, which is slidably mounted on the transverse slide rail, and a grinding mounting base is mounted on the slide table on the same side; A transverse motor is installed on one end of the inner side of the transverse slide rail. The transverse motor is used to drive the slide table to slide along the length direction on the transverse slide rail.

[0009] In one possible implementation, grinding the mounting base includes: A connecting plate, which is longitudinally connected to the front side of the upper end of the slide table; Mounting plates are arranged parallel to each other on the front side of the connecting plate, and the power motor is mounted on the front side of the mounting plates; Multiple guide rods are circumferentially arranged between the connecting plate and the mounting plate. One end of each guide rod is fixed to the connecting plate, and the other end of each guide rod passes through the mounting plate and is fitted with a limiting part. An elastic module is disposed between the connecting plate and the mounting plate and located inside the plurality of guide rods.

[0010] In one possible implementation, the elastic module includes multiple springs arranged circumferentially between the connecting plate and the mounting plate. Multiple positioning posts are provided on opposite sides of the connecting plate and the mounting plate, and the two ends of the springs are respectively fitted onto two opposite positioning posts.

[0011] In one possible implementation, a protective cover is mounted on the front side of the mounting plate, the protective cover surrounds the upper part of the grinding working part, and the front end of the grinding working part protrudes from the protective cover.

[0012] In one possible implementation, the grinding workpiece includes a cylindrical grinding wheel, the rear end of which has a connection hole for connecting to the drive end of the power motor, and the front end of which forms an annular grinding port.

[0013] In one possible implementation, the linear drive component includes: Longitudinal beam support, wherein the longitudinal beam support is disposed on one side of the hydraulic lifting platform; An electric push rod is installed at the rear end of the upper end face of the longitudinal beam support, and the rear end of the locking rod is connected to the front end of the electric push rod. A linear slide rail is provided along its length on the front side of the upper end of the longitudinal beam support, and a locking rod is slidably provided on the linear slide rail along its length.

[0014] In one possible implementation, the hook-shaped locking part includes a longitudinal rod, a crossbar, and a compaction pad. The lower end of the longitudinal rod is connected to the front end of the locking rod, the front end of the crossbar is connected to the upper end of the longitudinal rod, and the compaction pad is disposed at the rear end of the crossbar. The locking rod, the longitudinal rod, and the crossbar together constitute a clearance recess for avoiding the lower area of ​​the side beam to be ground.

[0015] The beneficial effects of the automatic grinding equipment for railway vehicles provided by this invention are as follows: Compared with the prior art, the equipment is moved to the grinding position of the open wagon by a moving trolley. The linear drive assembly is activated by the corresponding control button. The linear drive assembly drives the locking rod forward and inserts it into the underside of the side beam of the open wagon. The hook-shaped locking part at the front end of the locking rod is located on the inner side of the side beam. The lateral movement module is activated by the corresponding control button to roughly adjust the position of the grinding working part of the grinding mechanism relative to the outer grinding surface of the side beam. The hydraulic lifting platform is raised by foot until the center height of the grinding working part is aligned with the outer grinding surface of the side beam. After the position is roughly adjusted, the linear drive assembly is activated again by the corresponding control button. The linear drive assembly drives the locking rod backward so that the hook-shaped locking part at the front end of the locking rod abuts against the inner side of the side beam, and the grinding working part abuts against the front side of the side beam. The power motor is activated by the corresponding control button, driving the grinding workpiece to begin grinding the side beam. Then, the traverse module is activated again by the corresponding control button. The two traverse modules respectively drive the two grinding workpieces to reciprocate along the length of the side beam, grinding its outer surface. After the side beam is ground, all the above mechanisms return to their initial positions. This invention provides an automatic grinding device for railway vehicles that can replace manual grinding, reducing labor intensity, improving efficiency, avoiding the harm caused by noise and dust, and preventing potential hazards from grinding wheel breakage. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A front view of the working state of the automatic grinding equipment for railway vehicles provided by the present invention; Figure 2 A top view of the working state of the automatic grinding equipment for railway vehicles provided by the present invention; Figure 3 for Figure 2 A magnified view of a section at point M; Figure 4 A perspective view of the automatic grinding equipment for railway vehicles provided by the present invention after the removal of the moving trolley; Figure 5 A perspective view of the cylindrical grinding wheel provided by the present invention.

[0018] In the diagram: 1. Mobile trolley; 2. Hydraulic lifting platform; 3. Casters; 4. Directional stop; 5. Connecting chain; 6. Crossbeam support; 7. Horizontal slide rail; 8. Slide table; 9. Horizontal motor; 10. Connecting plate; 11. Mounting plate; 12. Guide rod; 13. Spring; 14. Positioning column; 15. Protective cover; 16. Cylindrical grinding wheel; 17. Power motor; 18. Longitudinal beam support; 19. Electric push rod; 20. Linear slide rail; 21. Longitudinal rod; 22. Crossbar; 23. Compactor pad; 24. Clearance recess; 25. Locking rod; 26. Control cabinet; 27. Control button; 28. Operation panel. Detailed Implementation To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0019] Unless otherwise explicitly specified, the use of terms such as "first," "second," or "third" is intended to distinguish different objects, not to describe a specific order.

[0020] Unless otherwise expressly defined, the use of directional terms such as “center,” “lateral,” “longitudinal,” “horizontal,” “vertical,” “top,” “bottom,” “inner,” “outer,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “clockwise,” “counterclockwise,” “high,” and “low” to indicate orientation or positional relationships is based on the orientation and positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention and simplifying the description, and is not intended to 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 limiting the specific scope of protection of the invention.

[0021] Please see Figures 1 to 4The present invention provides an automatic grinding device for railway vehicles. The automatic grinding device for railway vehicles includes a mobile lifting mechanism, two transverse modules, two grinding mechanisms, two automatic locking mechanisms, and a control cabinet 26. The mobile lifting mechanism includes a mobile trolley 1 and a hydraulic lifting platform 2 disposed on the upper surface of the mobile trolley 1; the two transverse modules are symmetrically disposed on the left and right sides of the upper surface of the hydraulic lifting platform 2; the two grinding mechanisms are correspondingly mounted on the two transverse modules, each grinding mechanism including a grinding mounting base, a power motor 17, and a grinding working part. The grinding mounting base is disposed on the corresponding transverse module, the power motor 17 is disposed on the grinding mounting base, and the grinding working part is mounted on the drive end of the power motor 17, which drives the grinding working part to rotate; the two automatic locking mechanisms are symmetrically disposed on the hydraulic lifting platform. On the left and right sides of platform 2, the automatic locking mechanism includes a linear drive assembly and a locking rod 25. The rear end of the locking rod 25 is connected to the front end of the linear drive assembly, and the front end of the locking rod 25 has a hook-shaped locking part that bends upward and backward. The control cabinet 26 has a built-in control system. The top of the control cabinet 26 is equipped with multiple control buttons 27 that are electrically connected to the control system. The multiple control buttons 27 are electrically connected to the transverse module, the grinding mechanism and the automatic locking mechanism, respectively. The side wall of the control cabinet 26 is equipped with an operation screen 28 that is electrically connected to the control system. The operation screen 28 is electrically connected to the transverse module, the grinding mechanism and the automatic locking mechanism, respectively.

[0022] This invention provides an automatic grinding device for railway vehicles. Compared with existing technologies, the device is moved to the grinding position of the open wagon by a trolley 1. The linear drive assembly is activated by the corresponding control button 27. The linear drive assembly drives the locking rod 25 forward and inserts it into the underside of the side beam of the open wagon. The hook-shaped locking part at the front end of the locking rod 25 is located on the inner side of the side beam. The lateral movement module is activated by the corresponding control button 27 to roughly adjust the position of the grinding working part of the grinding mechanism relative to the outer grinding surface of the side beam. The hydraulic lifting platform 2 is raised by foot until the center height of the grinding working part is aligned with the outer grinding surface of the side beam. After the rough adjustment is completed, the linear drive assembly is activated again by the corresponding control button 27. The linear drive assembly drives the locking rod 25 backward so that the hook-shaped locking part at the front end of the locking rod 25 abuts against the inner side of the side beam, and the grinding working part abuts against the front side of the side beam. The power motor 17 is activated by the corresponding control button 27. The power motor 17 drives the grinding workpiece to start moving and grinding the side beam. Then, the transverse module is activated again by the corresponding control button 27. The two transverse modules drive the two grinding workpieces to reciprocate along the length of the side beam to grind its outer surface. After the side beam is ground, all the above mechanisms return to their initial positions. The automatic grinding equipment for railway vehicles provided by this invention can replace manual grinding, reduce labor intensity, improve efficiency, avoid the problems of noise and dust causing harm to the human body, and avoid the potential harm to personnel caused by the breakage of the grinding wheel.

[0023] Please see Figure 1 The mobile trolley 1 has multiple casters 3 at its bottom, and at least one caster 3 is equipped with a stopper 4. The hydraulic lifting platform 2 is equipped with a connecting chain 5, which connects to the stopper 4. The mobile trolley 1 has a rectangular platform, and wheel frames are installed at the four corners of the lower end face of the rectangular platform. The casters 3 are installed on the wheel frames one by one, allowing the mobile trolley 1 to move in any direction. To enable the grinding equipment to travel in a straight line over long distances, a stopper 4 is installed at any caster 3. The stopper 4 is connected to the hydraulic lifting platform 2 via the connecting chain 5. The stopper 4 has a structure that can be inserted into the axle of the wheel frame and the caster 3 to prevent the caster 3 from turning. When the platform is raised for operation, the stopper 4 is automatically pulled out without affecting the automatic alignment of the equipment.

[0024] A crossbeam support 6 is provided on the rear side of the upper end face of the hydraulic lifting platform 2. The crossbeam support 6 is made of U-shaped steel. The U-shaped steel is welded to the upper end face of the hydraulic lifting platform 2 with its opening facing downward. The U-shaped steel extends along the left and right directions of the hydraulic lifting platform 2 and extends to the outer side of the hydraulic lifting platform 2 respectively. Two transverse modules are installed laterally at both ends of the upper end face of the crossbeam support 6 respectively.

[0025] Please see Figure 1 and Figure 2The transverse module includes a transverse slide rail 7, a slide table 8, and a transverse motor 9. The transverse slide rail 7 is horizontally mounted on one side of the upper end face of the crossbeam support 6; the slide table 8 is slidably mounted on the transverse slide rail 7, and a grinding mounting seat is mounted on the slide table 8 on the same side; the transverse motor 9 is mounted on one inner end of the transverse slide rail 7 and drives the slide table 8 to slide along the length of the transverse slide rail 7. The transverse slide rail 7, horizontally mounted on one side of the upper end face of the crossbeam support 6, is made of high-strength, low-deformation steel. After rolling processing, its surface is highly flat, ensuring not only the stability of the slide table 8 during sliding but also its ability to withstand long-term repeated frictional stress. Furthermore, to further optimize the operating environment of the slide table 8, small oil guide grooves are designed on both sides of the transverse slide rail 7. Combined with an automatic lubrication system, this continuously provides appropriate lubrication to the slide table 8, reducing wear and extending its service life. The slide table 8 slides along the length of the transverse slide rail 7. The main body of the slide table 8 is made of aluminum alloy, which effectively reduces the overall weight while ensuring sufficient strength, facilitating rapid start-stop and precise positioning. Its bottom slider section is inlaid with high-precision ball bearings, ensuring a low coefficient of rolling friction between the slide table 8 and the transverse slide rail 7, guaranteeing smooth sliding of the slide table 8. The transverse motor 9 is a high-quality motor with high torque output and precise speed regulation. It is stably installed at the designated position and connected to the slide table 8 through a precision transmission system, such as a synchronous belt or lead screw (depending on the actual design). Upon receiving a command from the control system, the transverse motor 9 quickly starts, precisely driving the slide table 8 to slide along the length of the transverse slide rail 7, achieving rapid and precise position adjustment.

[0026] Please see Figure 3The grinding mounting base includes a connecting plate 10, a mounting plate 11, multiple guide rods 12, and an elastic module. The connecting plate 10 is longitudinally connected to the front side of the upper end face of the slide table 8; the mounting plates 11 are spaced parallel to each other on the front side of the connecting plate 10, and a power motor 17 is mounted on the front side of the mounting plate 11; multiple guide rods 12 are circumferentially arranged between the connecting plate 10 and the mounting plate 11, with one end of each guide rod fixed to the connecting plate 10 and the other end penetrating the mounting plate 11 and fitted with a limiting part; the elastic module is located between the connecting plate 10 and the mounting plate 11 and inside the multiple guide rods 12. The connecting plate 10 is longitudinally and stably connected to the front side of the upper end face of the slide table 8. The connecting plate 10 and the slide table 8 are integrally formed, providing a platform for the entire grinding mounting base to work collaboratively with the slide table 8, ensuring the stability of subsequent components during horizontal movement, and enabling precise positioning of the grinding operation to the target area. Mounting plate 11 is also longitudinally arranged, parallel to each other on the front side of connecting plate 10. Power motor 17 is stably mounted on the front side of mounting plate 11. When the motor operates, it generates power to drive the connected grinding workpiece to rotate, directly acting on the surface of the workpiece to be ground. Multiple guide rods 12 located between connecting plate 10 and mounting plate 11 provide guidance for their relative movement. One end of each guide rod 12 is fixed to connecting plate 10, and the other end passes through mounting plate 11 and is fitted with a limiting part. The limiting part effectively prevents excessive displacement of mounting plate 11, ensuring that the movement of mounting plate 11 relative to connecting plate 10 remains within a controllable range during grinding, avoiding damage to grinding accuracy due to deviation. The elastic modules located inside the multiple guide rods 12 are typically made of elastic material and have good elastic recovery capabilities. During grinding, when the grinding tool encounters uneven surface hardness or small protrusions on the workpiece surface, the elastic modules can quickly buffer the impact, absorbing the instantaneous impact and preventing damage to the grinding tool, power motor 17, and the entire mounting base from rigid impacts. At the same time, this elastic buffer also allows the grinding pressure to be distributed more evenly on the surface of the workpiece, further improving the grinding quality and ensuring that every grinding mark is delicate and uniform.

[0027] Please see Figure 3The elastic module includes multiple springs 13, which are circumferentially arranged between the connecting plate 10 and the mounting plate 11. Multiple positioning posts 14 are provided on opposite sides of the connecting plate 10 and the mounting plate 11. The two ends of each spring 13 are respectively fitted onto two opposite positioning posts 14. These positioning posts 14 not only provide a stable mounting position for the springs 13, but are also crucial for ensuring that the springs 13 maintain the correct posture and force direction during operation. The positioning posts 14 are generally made of a high-hardness metal, such as stainless steel, and are precision machined to ensure dimensional accuracy and surface finish. Preferably, the diameter of the positioning post 14 is slightly smaller than the inner diameter of the spring 13, generally less than 1-2 mm, to ensure the stability and guiding nature of the spring 13. The sum of the lengths of two opposite positioning posts 14 is less than half the length of the spring 13, facilitating the assembly and disassembly of the spring 13.

[0028] When vibration or impact occurs during grinding, the spring 13, constrained by the positioning post 14, can compress and extend evenly, effectively buffering and dispersing energy. The circumferentially arranged springs 13 ensure balanced force distribution in all directions, preventing uneven grinding or equipment damage caused by excessive localized force. For example, when grinding irregularly shaped workpieces, springs 13 at different positions independently adjust their elastic deformation according to actual contact conditions, ensuring the grinding tool maintains appropriate pressure on the workpiece surface, thereby achieving high-precision, high-quality grinding results.

[0029] Please see Figure 1 , Figure 3 and Figure 4 A protective cover 15 is installed on the front side of the mounting plate 11. The protective cover 15 surrounds the upper part of the grinding workpiece, and the front end of the grinding workpiece protrudes from the protective cover 15. The structural design of the protective cover 15 fully considers the actual needs of the grinding work. Its overall shape is customized according to the contour of the grinding workpiece to ensure precise protection of the grinding area. The surrounding method ensures that the upper part of the grinding workpiece is fully protected during operation, preventing debris from flying upwards and avoiding injury to the operator's face, eyes, and surrounding equipment. In addition, the front end of the grinding workpiece protrudes from the protective cover 15 to ensure safety without affecting the normal operation of the grinding work. The front end of the grinding workpiece needs to directly contact the surface of the workpiece for grinding operations, and the protruding design allows it to fit snugly against the surface of the workpiece to be ground.

[0030] Preferably, the front edge of the protective cover 15 adopts a smooth transition design to avoid sharp corners causing accidental injury to operators, further improving the overall safety and practicality.

[0031] Please see Figure 3 and Figure 5The grinding workpiece includes a cylindrical grinding wheel 16. The rear end of the cylindrical grinding wheel 16 has a connection hole for connecting to the drive end of a power motor 17, and the front end of the cylindrical grinding wheel 16 forms an annular grinding port. In the field of industrial grinding, the grinding workpiece, as a key component that directly acts on the workpiece surface to achieve material removal and surface finishing, is crucial; its design directly affects grinding quality and efficiency. The cylindrical grinding wheel 16 constitutes the core component of the grinding workpiece. The rear end of the cylindrical grinding wheel 16 is equipped with a connection hole for connecting to the drive end of the power motor 17, ensuring that the strong rotational torque generated by the power motor 17 can be efficiently and stably transmitted to the cylindrical grinding wheel 16, allowing the grinding wheel to quickly reach the predetermined working speed. The annular grinding port at the front end of the cylindrical grinding wheel 16 allows for large-area contact with the workpiece surface when grinding planar workpieces. Compared with traditional point or line grinding tools, this greatly improves the uniformity of grinding and effectively ensures the flatness of the grinding area. Secondly, for some grinding tasks with large longitudinal dimensions, the specially designed large diameter of the cylindrical grinding wheel 16 is just right to match them. Unlike using small diameter grinding tools, there is no need to frequently adjust the grinding position and increase the grinding displacement. With just one positioning of the cylindrical grinding wheel 16, a large longitudinal grinding range can be covered, which greatly improves grinding efficiency and reduces working time and labor costs.

[0032] Furthermore, compared to some solid or complex-shaped grinding tools, the hollow structure of the cylindrical grinding wheel 16 effectively reduces its weight, making the entire grinding device more convenient and flexible to move and operate. This reduces additional power consumption and lightens the load on the drive end of the motor 17. Due to its hollow structure, the cylindrical grinding wheel 16 also exhibits superior heat dissipation compared to other types of grinding wheels. During prolonged, high-intensity grinding operations, it can quickly dissipate the heat generated by friction, preventing problems such as accelerated wear, reduced hardness, or even breakage due to overheating, thus significantly extending the service life of the cylindrical grinding wheel 16.

[0033] Please see Figure 1 , Figure 2 as well as Figure 4 The linear drive assembly includes a longitudinal beam support 18, an electric push rod 19, and a linear slide rail 20. The longitudinal beam support 18 is located on one side of the hydraulic lifting platform 2; the electric push rod 19 is installed at the rear end of the upper end face of the longitudinal beam support 18, and the rear end of the locking rod 25 is connected to the front end of the electric push rod 19; the linear slide rail 20 is located along the length direction at the front side of the upper end face of the longitudinal beam support 18, and the locking rod 25 is slidably mounted on the linear slide rail 20 along the length direction.

[0034] The linear drive assembly mainly consists of three key components: a longitudinal beam support 18, an electric push rod 19, and a linear guide rail 20. The longitudinal beam support 18 is located on one side of the hydraulic lifting platform 2 and serves as the foundation of the entire linear drive assembly. Made of high-strength steel, the longitudinal beam support 18 undergoes welding and processing to ensure sufficient rigidity and stability, capable of withstanding the thrust generated by the electric push rod 19 during operation and various stresses on the locking rod 25 during sliding, ensuring the assembly does not deform or shift under complex working conditions. The electric push rod 19 is installed at the rear end of the upper surface of the longitudinal beam support 18, providing power for linear motion. When a work signal is received, the electric push rod 19 activates, converting electrical energy into mechanical energy to drive the locking rod 25 connected to its front end in linear motion. The linear guide rail 20 ensures smooth sliding of the locking rod 25. Made of high-quality steel with high surface hardness and low friction coefficient, the linear guide rail 20 provides stable support and guidance. Driven by the electric push rod 19, the locking rod 25 slides along the linear slide rail 20 along the length direction. The hook-shaped locking part at the front end of the locking rod 25 ensures that the side beam and the grinding equipment will not be displaced relative to each other during the processing. Please see Figure 1 and Figure 4 The hook-shaped locking part includes a longitudinal rod 21, a horizontal rod 22, and a compaction pad 23. The lower end of the longitudinal rod 21 is connected to the front end of the locking rod 25, the front end of the horizontal rod 22 is connected to the upper end of the longitudinal rod 21, and the compaction pad 23 is located at the rear end of the horizontal rod 22. The locking rod 25, the longitudinal rod 21, and the horizontal rod 22 together constitute a clearance recess 24 for avoiding the lower area of ​​the side beam to be ground.

[0035] First, the lower end of the longitudinal rod 21 connects to the front end of the locking rod 25 and extends upwards, providing support for subsequent components. The longitudinal rod 21, the cross rod 22, and the locking rod 25 are integrally formed and are typically made of high-strength, high-toughness alloy steel to ensure they do not easily deform under significant tensile and compressive forces, thus guaranteeing the structural stability of the entire hook-shaped locking mechanism. The cross rod 22 and the longitudinal rod 21 together form an approximate "hook" shape. The cross rod 22 extends the locking depth, better accommodating the fixing requirements of side beams at different depths. Normally, the cross rod 22 and the longitudinal rod 21 are perpendicular to each other, but they can also be configured as a non-perpendicular angle structure depending on the shape of the workpiece to be ground, which can firmly clamp the workpiece without causing excessive compression damage. The locking rod 25, the longitudinal rod 21, and the cross rod 22 together constitute a clearance recess 24 to avoid the lower area of ​​the side beam to be ground. When dealing with side beams that have special shapes, especially those with a lower protrusion or irregular contour, the avoidance recess 24 can avoid the lower side of the side beam, so that the hook-shaped locking part can still accurately and firmly complete the locking task without affecting the normal grinding part of the workpiece, ensuring the smooth progress of the grinding work.

[0036] In addition, the compaction pad 23 is generally made of soft rubber or polyurethane, which have good elasticity and friction properties. When the hook-type locking part locks the workpiece, the compaction pad 23 first contacts the workpiece surface. With its own elastic deformation, it closely fits the contour of the workpiece and effectively fills any possible tiny gaps. This not only increases the friction and prevents the workpiece from loosening and slipping during grinding, but also buffers the impact force generated by the clamping force and protects the workpiece surface from scratch damage.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic grinding device for railway vehicles, characterized in that, include: A mobile lifting mechanism, comprising a mobile trolley (1) and a hydraulic lifting platform (2) disposed on the upper surface of the mobile trolley (1); Two transverse modules are symmetrically arranged on the left and right sides of the upper end face of the hydraulic lifting platform (2); Two grinding mechanisms are installed on two transverse modules in a one-to-one correspondence. Each grinding mechanism includes a grinding mounting base, a power motor (17), and a grinding working part. The grinding mounting base is set on the corresponding transverse module, the power motor (17) is set on the grinding mounting base, and the grinding working part is installed on the drive end of the power motor (17). The power motor (17) is used to drive the grinding working part to rotate. Two automatic locking mechanisms are symmetrically arranged on the left and right sides of the hydraulic lifting platform (2). The automatic locking mechanism includes a linear drive assembly and a locking rod (25). The rear end of the locking rod (25) is connected to the front end of the linear drive assembly. The front end of the locking rod (25) has a hook-shaped locking part that bends upward and backward. A control cabinet (26) is provided, which has a built-in control system. The top of the control cabinet (26) is provided with multiple control buttons (27) that are electrically connected to the control system. The multiple control buttons (27) are electrically connected to the transverse module, the grinding mechanism and the automatic locking mechanism respectively. An operation screen (28) that is electrically connected to the control system is provided on the side wall of the control cabinet (26). The operation screen (28) is electrically connected to the transverse module, the grinding mechanism and the automatic locking mechanism respectively. The hook-shaped locking part includes a vertical rod (21), a horizontal rod (22), and a compaction pad (23). The lower end of the vertical rod (21) is connected to the front end of the locking rod (25), the front end of the horizontal rod (22) is connected to the upper end of the vertical rod (21), and the compaction pad (23) is disposed at the rear end of the horizontal rod (22). The locking rod (25), the vertical rod (21), and the horizontal rod (22) together constitute a clearance recess (24) for avoiding the lower area of ​​the side beam to be ground.

2. The automatic grinding equipment for railway vehicles as described in claim 1, characterized in that, The bottom of the mobile trolley (1) is provided with multiple casters (3), and at least one caster (3) is provided with a stopper (4). The hydraulic lifting platform (2) is provided with a connecting chain (5), and the connecting chain (5) is connected to the stopper (4).

3. The automatic grinding equipment for railway vehicles as described in claim 1, characterized in that, A crossbeam support (6) is provided on the rear side of the upper end face of the hydraulic lifting platform (2). The two ends of the crossbeam support (6) extend to the outer side of the hydraulic lifting platform (2). The two transverse modules are respectively installed laterally on the two ends of the upper end face of the crossbeam support (6).

4. The automatic grinding equipment for railway vehicles as described in claim 3, characterized in that, The lateral movement module includes: A transverse slide rail (7) is installed laterally on one side of the upper end face of the crossbeam support (6); A slide table (8) is slidably disposed on the transverse slide rail (7), and the grinding mounting seat is disposed on the slide table (8) on the same side; A transverse motor (9) is installed on one end of the inner side of the transverse slide rail (7). The transverse motor (9) is used to drive the slide table (8) to slide along the length direction on the transverse slide rail (7).

5. The automatic grinding equipment for railway vehicles as described in claim 4, characterized in that, The grinding mount includes: A connecting plate (10) is longitudinally connected to the front side of the upper end of the slide (8); Mounting plate (11), which is arranged parallel to each other on the front side of the connecting plate (10), and the power motor (17) is mounted on the front side of the mounting plate (11); Multiple guide rods (12) are circumferentially arranged between the connecting plate (10) and the mounting plate (11). One end of each guide rod (12) is fixed to the connecting plate (10), and the other end of each guide rod (12) passes through the mounting plate (11) and is fitted with a limiting part. An elastic module is disposed between the connecting plate (10) and the mounting plate (11) and located inside the plurality of guide rods (12).

6. The automatic grinding equipment for railway vehicles as described in claim 5, characterized in that, The elastic module includes multiple springs (13), which are arranged circumferentially and located between the connecting plate (10) and the mounting plate (11). Multiple positioning posts (14) are provided on opposite sides of the connecting plate (10) and the mounting plate (11), and the two ends of the springs (13) are respectively fitted onto two opposite positioning posts (14).

7. The automatic grinding equipment for railway vehicles as described in claim 5, characterized in that, A protective cover (15) is installed on the front side of the mounting plate (11). The protective cover (15) surrounds the upper part of the grinding work part and the front end of the grinding work part protrudes from the protective cover (15).

8. The automatic grinding equipment for railway vehicles as described in claim 1, characterized in that, The grinding workpiece includes a cylindrical grinding wheel (16), the rear end of which has a connection hole for connecting to the drive end of the power motor (17), and the front end of which forms an annular grinding port.

9. The automatic grinding equipment for railway vehicles as described in claim 3, characterized in that, The linear drive component includes: Longitudinal beam support (18), the longitudinal beam support (18) is disposed on one side of the hydraulic lifting platform (2); An electric push rod (19) is installed at the rear end of the upper end face of the longitudinal beam support (18), and the rear end of the locking rod (25) is connected to the front end of the electric push rod (19). A linear slide rail (20) is disposed along the length direction on the front side of the upper end of the longitudinal beam support (18), and a locking rod (25) is slidably disposed on the linear slide rail (20) along the length direction.

Images