Railway wagon bogie bolster and side frame automatic assembling device

Abstract

This utility model discloses an automatic assembly device for the bogie bolster and side frame of a railway freight car, including a set of brackets, a set of side frame assembly structures, and a bolster support and positioning structure. The set of side frame assembly structures includes a left side frame assembly structure and a right side frame assembly structure. The set of brackets includes a left bracket and a right bracket. The left side assembly structure is installed on the left bracket, and the right side assembly structure is installed on the right bracket. The left bracket includes an outer long column and an inner suspension short column. An outer beam is installed between the two outer long columns, and an inner suspension beam is installed between the two inner suspension short columns. A rack and a linear guide rail are respectively installed on the outer beam and the inner suspension beam. Crossbeams are installed on both sides of the outer beam and the inner suspension beam. The left side frame assembly structure includes a traveling car device, a side frame manipulator lifting mechanism, a side frame manipulator clamping mechanism, and a traverse mechanism. The traveling car device includes four gears meshing with the rack. Each gear is connected to a traveling servo motor, and the traveling servo motor is installed on the traveling frame.

Description

Technical Field

[0001] This utility model relates to an automatic assembly device for large components of railway freight car bogies, and more particularly to an automatic assembly device for the bolster and side frame of a railway freight car bogie. Background Technology

[0002] The large components that need to be assembled during the maintenance of railway freight car bogies include three parts: the bolster, the left side frame, and the right side frame. Due to the large size and heavy weight of the bogie components, special tooling is required for each assembly during the actual maintenance process. The bolster and side frame are placed on the equipment in sequence by manual operation of a crane, and then workers assemble them manually.

[0003] The assembly process of bogie components consumes a lot of manpower and resources, involves a lot of manual intervention, has poor safety, low work efficiency, and poor assembly consistency. Therefore, it is particularly important to improve the assembly efficiency of bogie components and realize their automation and intelligence. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic assembly device for the bogie bolster and side frame of a railway freight car, so as to realize the automation of the assembly of the side frame and bolster.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: An automatic assembly device for the bolster and side frames of a railway freight car bogie is characterized by comprising a set of brackets, a set of side frame assembly structures, and a bolster support and positioning structure. The set of side frame assembly structures includes a left side frame assembly structure and a right side frame assembly structure. The set of brackets includes a left bracket and a right bracket. The left side assembly structure is installed on the left bracket, and the right side assembly structure is installed on the right bracket. The left bracket includes an outer long column and an inner suspension short column. An outer beam is installed between the two outer long columns, and an inner suspension beam is installed between the two inner suspension short columns. A rack and a linear guide rail are respectively installed on the outer beam and the inner suspension beam. Crossbeams are installed on both sides of the outer beam and the inner suspension beam. The left side frame assembly structure includes a traveling mechanism, a side frame manipulator lifting mechanism, a side frame manipulator clamping mechanism, and a lateral movement mechanism. The traveling device includes four gears meshing with a rack, each gear connected to a traveling servo motor mounted on a traveling frame. The traveling frame also has a slider cooperating with a linear guide rail. The side frame manipulator lifting mechanism includes a lifting servo motor driving a main gear, which meshes with a lifting rack. The lifting rack is mounted on a lifting cylinder, which is slidably mounted in a lifting frame. A side frame manipulator clamping mechanism is mounted below the lifting cylinder. A transverse mechanism is mounted between the top of the lifting frame and the top of the traveling frame. The transverse mechanism includes a transverse servo motor, a transverse gear, a transverse frame, and a transverse rack mounted on the top of the traveling frame. The transverse frame is connected to the lifting frame. The transverse servo motor drives the transverse gear and is mounted on the transverse frame. A guide structure is also installed between the transverse frame and the traveling frame. A guide back wheel assembly is installed between the lifting frame and the traveling frame. The bolster positioning device includes a base, a lead screw mounted on the base, and slide rails mounted on both sides of the lead screw. Nut seats are respectively installed below the bottom plates of the two centering blocks, and the two nut seats are installed on both sides of the lead screw. The spiral directions of the lead screw are opposite on both sides. Centering block slide rails matching the slide rails are connected to both ends of the bottom plates of the centering blocks. The floating seat is located between two pairs of middle blocks. The bottom plates on both sides of the floating seat are connected to the floating block sliders respectively. The floating block sliders match the slide rail. A positioning frame is provided in the cavity of the floating seat. The positioning frame is fixed between the two pairs of side frames of the base. An arc groove is provided below the positioning frame, spanning the lead screw. The floating seat is connected to the positioning frame by a pin. Springs are installed on the pins between the adjacent side plates of the floating seat and the positioning frame respectively. The top plate of the floating seat is equipped with a turntable, and the top of the turntable is connected to the rocker fixed seat. The bottom plate of the rocker fixed seat has ear plates on both sides, and the ear plates are fitted with optical shafts. Spring bodies are sleeved on both sides of the optical shafts, and the two ends of the optical shafts are installed on the rotary supports on both sides of the top plate of the floating seat. The spring support plate positioning tray spans the recess of the bolster fixing seat, and the lower sides of the spring support plate positioning tray are connected to a three-axis cylinder, which is mounted on the outer frame of the base.

[0006] The side-mounted robotic arm clamping mechanism includes a clamping servo motor, a drive gear, a driven gear, a lead screw shaft, and two clamping jaws mounted on the clamping mechanism frame. The clamping servo motor is connected to the drive gear, and the middle part of the lead screw shaft is connected to the driven gear. The drive gear drives the driven gear. The two sides of the lead screw shaft are threaded in opposite directions and are screwed to the nuts of the corresponding clamping jaws. The sliders installed below the clamping jaws match the slide rails of the clamping mechanism frame. The lead screw drives the two clamping jaws to clamp and release.

[0007] The guide wheel assembly includes a top plate and two rollers mounted below the top plate, which is mounted on the lifting frame and moves along the traveling frame.

[0008] An outer frame is mounted on the outer ring of the base, and the three-axis cylinder is fixed to the outer frame.

[0009] The bolster fixing seat includes an annular base plate, an L-shaped plate connected to the opposite side of the annular base plate, a notch provided at the top of the vertical plate of the L-shaped plate, and the annular base plate is connected to the turntable screw.

[0010] The alignment block includes a base plate and two side plates. A top plate is provided on the top of the two side plates. A nut seat is installed in the lower middle part of the base plate. Slider blocks are installed on both sides of the base plate.

[0011] The spring support plate positioning tray is equipped with two large-diameter open clamping cylinders.

[0012] The beneficial effects of this utility model are: the device realizes the automation and intelligence of the assembly of large components of railway freight car bogies, improves maintenance and production efficiency, enhances safety level, and reduces the labor intensity of operators. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0014] Figure 2 This is a side view of the structure of this utility model.

[0015] Figure 3 This is a top view of the structure of this utility model.

[0016] Figure 4 This is a three-dimensional structural diagram of the side frame assembly structure.

[0017] Figure 5 This is a three-dimensional structural diagram of the side frame robotic arm clamping mechanism.

[0018] Figure 6 This is a three-dimensional structural diagram of the rocker arm's support and positioning.

[0019] Figure 7 yes Figure 6 A schematic diagram of the three-dimensional structure without the outer frame.

[0020] Figure 8 yes Figure 7 A three-dimensional structural diagram with some components removed.

[0021] Figure 9 yes Figure 8 A three-dimensional structural diagram with some components removed.

[0022] Figure 10 This is a schematic diagram of the three-dimensional structure of the base.

[0023] Figure 11 This is a three-dimensional structural diagram of the floating seat.

[0024] Figure 12 This is a schematic diagram of the three-dimensional structure of the center block.

[0025] Figure 13 This is a three-dimensional structural diagram of the bolster holder. Detailed Implementation

[0026] Please see Figures 1 to 13This invention discloses an automatic assembly device for the bolster and side frames of a railway freight car bogie, comprising a set of brackets, a set of side frame assembly structures, and a bolster support and positioning structure. The set of side frame assembly structures includes a left side frame assembly structure and a right side frame assembly structure. The set of brackets includes a left bracket and a right bracket. The left bracket and the right bracket are mounted on a top frame. The left assembly structure is mounted on the left bracket, and the right assembly structure is mounted on the right bracket. The left bracket 1 includes an outer long column 11 and an inner suspension short column 12. An outer beam 13 is installed between the two outer long columns, and an inner suspension beam 14 is installed between the two inner suspension short columns. A rack 15 and a linear guide rail 16 are respectively installed on the outer beam and the inner suspension beam. A crossbeam 17 is installed on both sides of the outer beam and the inner suspension beam. The left side frame assembly structure 2 includes a traveling carriage device 21, a side frame robot lifting mechanism 22, a side frame robot clamping mechanism 23, and a traversing mechanism 24. The traveling carriage device includes four gears meshing with two racks, each gear connected to a traveling servo motor. The traveling servo motor is mounted on a traveling frame 221, which also has a slider that engages with a linear guide rail. The side frame robot lifting mechanism 22 includes a lifting servo motor that drives a main gear. The main gear meshes with a lifting rack, which is mounted on a lifting cylinder. The lifting cylinder is slidably mounted in the lifting frame 221. A side frame robot clamping mechanism is installed below the lifting cylinder. A traversing mechanism is installed between the top of the lifting frame and the top of the traveling frame. This traversing mechanism includes a traversing servo motor. When the traversing mechanism servo motor is activated, it causes the side frame robot gripper to extend into or retract from the triangular hole of the adapter side frame 10. The traversing gear and the traversing frame 241 are connected... The lateral rack is mounted on the top of the traveling frame. The lateral rack is connected to the lifting frame. The lateral servo motor is connected to drive the lateral gear. The lateral servo motor is mounted on the lateral rack. The lateral rack and the traveling frame are also equipped with guide structures. A guide back wheel assembly 222 is installed between the lifting frame and the traveling frame. The guide back wheel assembly includes a top plate and two rollers installed below the top plate. The top plate is mounted on the lifting frame and moves along the traveling frame to make the lateral mechanism move more smoothly. This part can move left and right, forward and backward, and up and down to realize the positioning and placement assembly of the side frame.

[0027] Specifically, such as Figure 5 As shown, the side frame manipulator clamping mechanism includes a clamping servo motor 231, a drive gear 232, a driven gear 233, a lead screw shaft 234, and two clamping jaws 235 mounted on the clamping mechanism frame. The clamping servo motor is connected to the drive gear, and the middle part of the lead screw shaft is connected to the driven gear. The drive gear drives the driven gear. The two sides of the lead screw shaft are threaded with opposite directions and are screwed to the nuts of the corresponding clamping jaws. The slider installed below the clamping jaw matches the slide rail of the clamping mechanism frame. The lead screw drives the two clamping jaws to clamp and release the adapter side frame.

[0028] like Figures 6 to 13 The bolster positioning device 3 includes a base 31, a lead screw 32 mounted on the base, and slide rails 33 mounted on both sides of the lead screw. The centering block 34 includes a base plate and two side plates. A top plate is provided on the top of the two side plates. Nut seats 35 are respectively installed below the base plates of the two centering blocks 34. The two nut seats are installed on both sides of the lead screw 32. The spiral directions of the two sides of the lead screw are opposite, thereby providing power for centering and straightening on both sides. Centering block slide rails 36 that match the slide rails are respectively connected to both ends of the base plate of the centering block 34.

[0029] The floating seat 37 is located between two pairs of center blocks 34. The bottom plates on both sides of the floating seat are respectively connected to the floating block sliders 371. The floating block sliders match the slide rails 33. A positioning frame 38 is provided in the cavity of the floating seat. The positioning frame is fixed between two pairs of side frames 311 of the base. An arc-shaped groove is provided below the positioning frame, spanning the lead screw. The floating seat is connected to the positioning frame by a pin. Springs 39 are respectively installed on the pins between the adjacent side plates of the floating seat and the positioning frame. The top plate of the floating seat 37 is equipped with a turntable 40, and the upper part of the turntable is connected to the bolster fixing seat 41, such as... Figure 13 The bolster fixing seat includes an annular base plate, with an L-shaped plate connected to the opposite side of the annular base plate. A notch is provided at the top of the vertical plate of the L-shaped plate. The annular base plate is connected to a turntable screw. The lower two sides of the annular base plate of the bolster fixing seat are respectively provided with ear plates 411. An optical shaft 412 passes through the ear plates. Spring bodies 42 are sleeved on both sides of the optical shaft. The two ends of the optical shaft are installed on the rotary supports 371 on both sides of the top plate of the floating seat 37. The spring support plate positioning tray 43 spans the cavity of the bolster fixing seat 41. The lower sides of the spring support plate positioning tray 43 are connected to the three-axis cylinders 44, which are mounted on the outer frame 45 of the base. The outer frame is mounted on the outer ring of the base. When the bogie is a K4 or K5 model, the spring support plate positioning tray is equipped with two large-diameter open clamping cylinders 46. When the bogie is a K2 or K6 model, the large-diameter open clamping cylinders are not needed.

[0030] After the AGV transport vehicle transports a set of rocker side frames to the designated position, the side frames are clamped by a set of side frame assembly structures. The rocker is fixed to the rocker fixed seat 41 of the rocker support positioning structure. The lifting three-axis cylinder of the spring support plate positioning tray 43 rises into place, supporting the spring support plate positioning tray. The large-diameter opening clamp cylinder clamps into place, and the centering block provides power for centering and straightening on both sides under the action of the lead screw.

[0031] This invention achieves automated setup of the side frame and bolster assembly through the interrelation and cooperation of the side frame assembly and the bolster positioning device.

Claims

1. An automatic assembly device for the bogie bolster and side frame of a railway freight car, characterized in that: The system includes a set of brackets, a set of side frame assembly structures, and a bolster support and positioning structure. The set of side frame assembly structures includes a left side frame assembly structure and a right side frame assembly structure. The set of brackets includes a left bracket and a right bracket. The left side frame assembly structure is installed on the left bracket, and the right side frame assembly structure is installed on the right bracket. The left bracket includes an outer long column and an inner suspended short column. An outer beam is installed between the two outer long columns, and an inner suspension beam is installed between the two inner suspended short columns. Racks and linear guides are respectively installed on the outer beam and the inner suspension beam. Crossbeams are installed on both sides of the outer beam and the inner suspension beam. The left side frame assembly structure includes a traveling device, a side frame manipulator lifting mechanism, a side frame manipulator clamping mechanism, and a lateral movement mechanism. The traveling device includes four gears meshing with a rack, each gear connected to a traveling servo motor mounted on a traveling frame. The traveling frame also has a slider cooperating with a linear guide rail. The side frame manipulator lifting mechanism includes a lifting servo motor driving a main gear, which meshes with a lifting rack. The lifting rack is mounted on a lifting cylinder, which is slidably mounted in a lifting frame. A side frame manipulator clamping mechanism is mounted below the lifting cylinder. A transverse mechanism is mounted between the top of the lifting frame and the top of the traveling frame. The transverse mechanism includes a transverse servo motor, a transverse gear, a transverse frame, and a transverse rack mounted on the top of the traveling frame. The transverse frame is connected to the lifting frame. The transverse servo motor drives the transverse gear and is mounted on the transverse frame. A guide structure is also installed between the transverse frame and the traveling frame. A guide back wheel assembly is installed between the lifting frame and the traveling frame. The bolster support and positioning structure includes a base, a lead screw mounted on the base, and slide rails mounted on both sides of the lead screw. Nut seats are respectively installed below the bottom plates of the two pairs of center blocks. The two nut seats are installed on both sides of the lead screw, and the spiral directions of the two sides of the lead screw are opposite. Center block slides matching the slide rails are respectively connected to the two ends of the bottom plates of the center blocks. A floating seat is located between the two pairs of center blocks. Floating block sliders are respectively connected to the bottom plates of the two sides of the floating seat. The floating block sliders match the slide rails. A positioning frame is provided in the cavity of the floating seat. The positioning frame is fixed between the two pairs of side frames of the base. An arc-shaped groove is provided below the positioning frame, spanning the lead screw. The floating seat is connected to the positioning frame by a pin. Springs are respectively installed on the pins between the adjacent side plates of the floating seat and the positioning frame. The top plate of the floating seat is equipped with a turntable, and a rocker arm fixing seat is connected above the turntable. The bottom plate of the rocker arm fixing seat has ear plates on both sides, through which a light shaft passes. Spring bodies are fitted on both sides of the light shaft, and the two ends of the light shaft are installed on the rotary supports on both sides of the top plate of the floating seat. A spring support plate positioning tray spans the cavity of the rocker arm fixing seat, and a three-axis cylinder is connected to the lower side of both sides of the spring support plate positioning tray. The three-axis cylinder is installed on the outer frame of the base.

2. The automatic assembly device for railway freight car bogie bolsters and side frames as described in claim 1, characterized in that: The side-mounted robotic arm clamping mechanism includes a clamping servo motor, a drive gear, a driven gear, a lead screw shaft, and two clamping jaws mounted on the clamping mechanism frame. The clamping servo motor is connected to the drive gear, and the middle part of the lead screw shaft is connected to the driven gear. The drive gear drives the driven gear. The two sides of the lead screw shaft are threaded in opposite directions and are screwed to the nuts of the corresponding clamping jaws. The sliders installed below the clamping jaws match the slide rails of the clamping mechanism frame. The lead screw drives the two clamping jaws to clamp and release.

3. The automatic assembly device for railway freight car bogie bolsters and side frames as described in claim 2, characterized in that: The guide wheel assembly includes a top plate and two rollers mounted below the top plate, which is mounted on the lifting frame and moves along the traveling frame.

4. The automatic assembly device for railway freight car bogie bolsters and side frames as described in claim 3, characterized in that: An outer frame is mounted on the outer ring of the base, and the three-axis cylinder is fixed to the outer frame.

5. The automatic assembly device for railway freight car bogie bolsters and side frames as described in claim 1, characterized in that: The bolster fixing seat includes an annular base plate, with an L-shaped plate connected to the opposite side of the annular base plate. A notch is provided at the top of the vertical plate of the L-shaped plate, and the annular base plate is connected to the turntable screw.

6. The automatic assembly device for railway freight car bogie bolsters and side frames as described in claim 5, characterized in that: The alignment block includes a base plate and two side plates. A top plate is provided on the top of the two side plates. A nut seat is installed in the lower middle part of the base plate. Slider blocks are installed on both sides of the base plate.

7. The automatic assembly device for railway freight car bogie bolsters and side frames as described in claim 1, characterized in that: The spring support plate positioning tray is equipped with two large-diameter open clamping cylinders.

Images