Workpiece limiting device and limiting method of rail vehicle intelligent production line

Abstract

The present application relates to the technical fields of rail vehicle production, and provides a workpiece limiting device and limiting method of a rail vehicle intelligent production line, which comprises a rack, a conveying belt, a feeding mechanism, a discharging mechanism, a synchronous connecting rod and a separating mechanism, the feeding mechanism is arranged at the starting end of the conveying belt in the transmission direction, the feeding mechanism comprises a feeding plate, a supporting shaft, a contact plate and a first swing rod, and is used for limiting the input workpiece; the discharging mechanism is arranged at the ending end of the conveying belt in the transmission direction, the discharging mechanism comprises a round shaft, a second swing rod and a clamping plate, and is used for limiting the output workpiece; the synchronous connecting rod is used for connecting the supporting shaft and the round shaft; the separating mechanism is arranged at the side of the conveying belt, the separating mechanism comprises a first vertical shaft, a second vertical shaft and a separating fork, and is used for separating the workpieces on the conveying belt; and the workpiece conveying stability on the conveying belt is improved, and the conveying efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of rail vehicle manufacturing technology, specifically to a workpiece limiting device and limiting method for an intelligent rail vehicle production line. Background Technology

[0002] With the rapid development of the social economy, urban traffic pressure has been increasing year by year. In order to alleviate urban traffic pressure, rail vehicles have been mass-produced and put into use in the transportation process. Whether it is transporting passengers or transferring goods, rail vehicles have played an irreplaceable role. Therefore, the application demand of rail vehicles has been increasing year by year. For the production of rail vehicles, the assembly line is used to assemble the car body. Then, the components required for assembly need to be transported to the assembly table by conveying equipment. In related technologies, the conveying equipment is usually a conveyor belt, which is used to transport the various components.

[0003] Regarding the aforementioned technologies, components transported on the conveyor belt surface are prone to instability due to conveyor belt vibration or swaying, causing them to fall off the conveyor belt. Irreversible deformation occurs after the components fall, requiring return to the factory for repair, severely impacting the efficient assembly of the entire vehicle body. Therefore, conveyor belts suffer from unstable workpiece transport and low transport efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a workpiece limiting device and limiting method for an intelligent production line for rail vehicles, so as to solve the problems of unstable workpiece transmission and low conveying efficiency.

[0005] To achieve the above objectives, in a first aspect, the present invention provides a workpiece limiting device for an intelligent production line for rail vehicles, employing the following technical solution:

[0006] A workpiece limiting device and frame for an intelligent production line for rail vehicles;

[0007] A conveyor belt is mounted on the frame, and a drive assembly is mounted on the frame. The drive assembly is used to drive the conveyor belt to rotate. A partition is disposed through the conveyor belt, and the upper surface of the partition abuts against the inner surface of the conveyor belt.

[0008] A feeding mechanism is located at the beginning of the transmission direction of the conveyor belt. The feeding mechanism includes a feeding plate, a support shaft, an abutment plate, and a first swing arm. The feeding plate is located at the end of the conveyor belt. There are two support shafts, both of which are rotatably connected to the feeding plate and are symmetrical about the centerline of the feeding plate. A first linkage assembly is provided between the two support shafts, which drives the two support shafts to rotate in opposite directions. The abutment plate is fixedly connected to the periphery of the support shaft. The first swing arm is hinged to the side wall of the abutment plate. An adjustment assembly is provided on the abutment plate, which drives the first swing arm to adhere to the side wall of the abutment plate.

[0009] A discharge mechanism is provided at the end of the conveyor belt in the transmission direction. Two discharge mechanisms are provided, symmetrically arranged on both sides of the conveyor belt. Each discharge mechanism includes a round shaft, a second swing arm, and a clamping plate. The round shaft is rotatably connected to the partition plate. A second linkage assembly is provided between the two round shafts, driving the two round shafts to rotate in opposite directions. An electric drive rod is provided on the second linkage assembly to control the rotation direction of the second linkage assembly. One end of the second swing arm is fixedly connected to the circumference of the round shaft, and one end of the clamping plate is hinged to the end of the second swing arm away from the round shaft. A sliding assembly is also provided on the partition plate, driving the two clamping plates to be arranged parallel to each other on the conveyor belt.

[0010] A synchronous connecting rod is disposed on one side of the conveyor belt. One end of the synchronous connecting rod is fixedly connected to the periphery of the support shaft, and the other end of the synchronous connecting rod is fixedly connected to the periphery of the round shaft. The synchronous connecting rod is used to drive the support shaft and the round shaft to rotate synchronously.

[0011] A separating mechanism is disposed on the side of the conveyor belt. The separating mechanism includes a first vertical shaft, a second vertical shaft, and a separating fork. The first and second vertical shafts are rotatably mounted on the partition plate. A swing rod is disposed around the first vertical shaft, which drives the first vertical shaft to rotate. A third linkage assembly is disposed between the first and second vertical shafts, which drives the second vertical shaft to rotate in the opposite direction to the first vertical shaft. There are two separating forks, one of which is sleeved on each of the first and second vertical shafts. Each separating fork includes a crossbar and a railing, and the railing is perpendicular to the crossbar.

[0012] As an optimization of the workpiece limiting device in an intelligent production line for rail vehicles, the first linkage component includes a first gear, a first compound wheel, and a first pulley. The first gear is sleeved on the lower end of one of the support shafts. The first compound wheel is rotatably connected to the feeding plate. The first gear meshes with the first compound wheel. The first pulley is sleeved on the other support shaft. A first synchronous belt is sleeved between the first compound wheel and the first pulley.

[0013] As an optimization of a workpiece limiting device for an intelligent production line of rail vehicles, the control component includes a support rod, a bearing block, a push rod, and a resistance spring. An mounting groove is provided on the contact plate. The support rod is fixedly connected to the inner wall of the mounting groove. The bearing block is slidably connected to the support rod. One end of the push rod is rotatably connected to one side of the bearing block, and the other end of the push rod is provided with a trigger part. The trigger part protrudes from the side wall of the contact plate and abuts against the side wall of the first swing rod. The resistance spring is sleeved on the support rod. One end of the resistance spring is fixedly connected to the inner side wall of the mounting groove, and the other end of the resistance spring is fixedly connected to the side of the bearing block near the push rod.

[0014] As an optimization of the workpiece limiting device in an intelligent production line for rail vehicles, a guide plate is provided on the feeding plate. One end of the guide plate is fixedly connected to the side wall of the feeding plate, and the other end of the guide plate extends toward the side where the two support shafts are close to each other.

[0015] As an optimization of the workpiece limiting device in an intelligent production line for rail vehicles, the second linkage component includes a second gear, a second compound wheel, and a second pulley. The second gear is fixedly sleeved on the circumference of one of the circular shafts. The second compound wheel is rotatably connected to the partition plate. The second pulley is sleeved on the circumference of the other circular shaft. The second gear meshes with the second compound wheel. A second synchronous belt is sleeved between the second compound wheel and the second pulley. A connecting clip is fixedly connected to the side of the second synchronous belt. The end of the electric drive rod is fixedly connected to the connecting clip.

[0016] As an optimization of the workpiece limiting device in an intelligent production line for rail vehicles, the sliding assembly includes a slide rail, a slider, and a sleeve. The slide rail is disposed on the partition plate and extends along the transmission direction of the conveyor belt. The slider is slidably connected to the slide rail, and the sleeve is slidably inserted through the slider. The sleeve is perpendicular to the slide rail, and the end of the sleeve away from the slide rail is vertically fixedly connected to the clamping plate.

[0017] As an optimization of the workpiece limiting device in an intelligent production line for rail vehicles, the synchronous connecting rod includes a synchronous rod and two rotating rods. One of the rotating rods is fixedly connected to the periphery of the support shaft, and the other rotating rod is fixedly connected to the periphery of the circular shaft. The two rotating rods are respectively rotatably connected to the two ends of the synchronous rod.

[0018] As an optimization of the workpiece limiting device in an intelligent production line for rail vehicles, the third linkage component includes a fixed plate and an intermediate shaft. The first vertical shaft is rotatably connected to one end of the fixed plate, and the intermediate shaft is rotatably connected to the other end of the fixed plate. Both the first vertical shaft and the intermediate shaft are fitted with reverse gears, and the two reverse gears mesh with each other. Both the intermediate shaft and the second vertical shaft are fitted with third pulleys, and a third synchronous belt is fitted between the two third pulleys.

[0019] As an optimization of the workpiece limiting device in an intelligent production line for rail vehicles, the frame is equipped with a telescopic drive component, one end of which is equipped with an abutment wheel, and the swing rod is provided with a sliding groove along the length direction, with the abutment wheel slidably connected to the inner wall of the sliding groove.

[0020] Secondly, the present invention provides a limiting method for a workpiece limiting device applicable to the above-mentioned intelligent production line for rail vehicles, comprising the following steps:

[0021] S1. Place the workpiece on the feeding plate and push the workpiece from the feeding plate into the conveyor belt, so that the workpiece moves with the transmission direction of the conveyor belt;

[0022] S2. Start the electric drive rod to drive the second linkage component to rotate, and drive the two round shafts to rotate in opposite directions. The round shaft on one side of the conveyor belt drives the support shaft on the same side to rotate synchronously through the synchronous connecting rod.

[0023] S3. The support shaft drives another support shaft to rotate in the opposite direction through the first linkage component. The two support shafts drive the two first rocker arms to move closer or further apart from each other, forming a guide channel for workpiece input.

[0024] S4. The two circular shafts drive the second rocker arm to move the two clamping plates closer to each other or further apart, forming a parallel channel for workpiece output;

[0025] S5. During the process of conveying the workpiece from the guide channel to the parallel channel, the swing rod is driven to swing back and forth. The swing rod drives the first vertical shaft to rotate. The first vertical shaft drives the second vertical shaft to rotate synchronously through the third linkage component. The separation fork of the first vertical shaft and the separation fork of the second vertical shaft alternately block multiple workpieces on the conveyor belt, so that multiple workpieces are separated and conveyed one by one in sequence.

[0026] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0027] 1. In the feeding mechanism, the two support shafts rotate in opposite directions through the first linkage component, so that the distance between the two first swing arms is adapted to the size of the workpiece, thereby guiding the workpiece to the center line of the conveyor belt for conveying, preventing the workpiece from falling, and thus improving the stability of workpiece transmission.

[0028] 2. In the material discharge mechanism, the second linkage component can be operated by the electric drive rod and the connecting card, which drives the two round shafts to rotate in opposite directions. The distance between the two clamping plates can be adjusted by the second swing rod, which effectively limits the distance between the two clamping plates and can effectively limit the workpiece to the middle of the conveyor belt to achieve stable movement.

[0029] 3. In the separating mechanism, the first and second vertical shafts are rotated synchronously by the third linkage component. By utilizing the positional difference between the separation forks on the first and second vertical shafts, one of the two separation forks is in a blocking state while the other is in a releasing state, and this is done alternately. This controls the movement and stopping of the workpieces on the conveyor belt, arranges the workpieces, and realizes sequential single conveying. This prevents a large number of workpieces from squeezing each other, avoiding damage or blockage, thereby improving the workpiece transmission efficiency. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, 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.

[0031] Figure 1 This is a schematic diagram of the overall structure of the workpiece limiting device according to an embodiment of this application;

[0032] Figure 2 This is a schematic diagram of the overall structure of the first linkage component in an embodiment of this application;

[0033] Figure 3 This is a schematic diagram of the side structure of the contact plate according to an embodiment of this application;

[0034] Figure 4 This is a schematic diagram of the overall structure of the material feeding mechanism in an embodiment of this application;

[0035] Figure 5 This is a schematic diagram of the overall structure of the partition mechanism in an embodiment of this application.

[0036] In the diagram: 1. Frame; 2. Conveyor belt; 21. Drive assembly; 211. Motor; 212. Drive roller; 213. Transmission belt; 22. Partition plate; 3. Feeding mechanism; 31. Feeding plate; 32. Support shaft; 33. Contact plate; 331. Mounting slot; 34. First swing arm; 35. First linkage assembly; 351. First gear; 352. First compound wheel; 353. First pulley; 354. First synchronous belt; 36. Control assembly; 361. Support rod; 362. Bearing block; 363. Push rod; 3631. Trigger; 364. Resistance spring; 37. Guide plate; 4. Discharge mechanism; 41. Round shaft; 42. Second swing arm; 43. Clamping plate; 44. Second linkage assembly Components; 441, Second gear; 442, Second compound wheel; 443, Second pulley; 444, Second synchronous belt; 445, Connecting card; 45, Electric drive rod; 46, Sliding assembly; 461, Slide rail; 462, Slider; 463, Sleeve; 5, Synchronous connecting rod; 51, Synchronous rod; 52, Rotating rod; 6, Separating mechanism; 61, First vertical shaft; 611, Swing rod; 612, Slide groove; 613, Telescopic drive component; 614, Abutting wheel; 62, Second vertical shaft; 63, Separating fork; 631, Crossbar; 632, Guardrail; 64, Third linkage assembly; 641, Fixing plate; 642, Intermediate shaft; 643, Reverse gear; 644, Third pulley; 645, Third synchronous belt. Detailed Implementation

[0037] To make the technical solution and advantages of the present invention clearer, the present invention and its beneficial effects will be described in further detail below with reference to specific embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0038] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0039] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0040] The following is in conjunction with the appendix Figure 1-5This application will be described in further detail below.

[0041] In a first aspect, this application provides a workpiece limiting device for an intelligent production line for rail vehicles, employing the following technical solution:

[0042] Reference Figure 1 A workpiece limiting device for an intelligent production line for rail vehicles includes a frame 1, a conveyor belt 2, a feeding mechanism 3, a discharging mechanism 4, a synchronous connecting rod 5, and a separating mechanism 6. The conveyor belt 2 is mounted on the frame 1, and a drive assembly 21 is installed on the frame 1. A partition 22 is installed through the conveyor belt 2, with its upper surface abutting against the inner surface of the conveyor belt 2, providing support for the middle of the conveyor belt 2, preventing it from collapsing due to excessive weight, and improving the load-bearing capacity and conveying stability of the conveyor belt 2. Specifically, the drive assembly 21 includes a motor 211 and two drive rollers 212. The motor 211 is fixedly mounted on the frame 1, and the two drive rollers 212 are rotatably mounted at both ends of the conveyor belt 2. A transmission wheel is fixedly mounted on one end of one drive roller 212 and on the output shaft of the motor 211, and a transmission belt 213 is fitted onto both transmission rollers. In use, the output shaft of motor 211 drives the transmission wheel to rotate, and the transmission wheel drives the drive roller shaft 212 to rotate through the transmission belt 213. The rotation of the drive roller shaft 212 drives the conveyor belt 2 to rotate, thereby driving the conveyor belt 2 to rotate along the transmission direction.

[0043] Reference Figure 1 The feeding mechanism 3 is located at the beginning of the transmission direction of the conveyor belt 2. The feeding mechanism 3 includes a feeding plate 31, a support shaft 32, an abutment plate 33, and a first swing arm 34. The feeding plate 31 is fixedly installed at the end of the conveyor belt 2. There are two support shafts 32, which are rotatably mounted on the feeding plate 31. The two support shafts 32 are symmetrical about the center line of the feeding plate 31. A first linkage assembly 35 is installed between the two support shafts 32, which causes the two support shafts 32 to rotate in opposite directions. An abutment plate 33 is fixedly connected to the periphery of each support shaft 32. The side wall of the abutment plate 33 away from the support shaft 32 is hinged to the first swing arm 34. An adjustment assembly 36 is installed on the abutment plate 33, which can drive the first swing arm 34 to abut against the side wall of the abutment plate 33. When the workpiece is pushed from the feed plate 31 onto the conveyor belt 2, the angle between the two contact plates 33 is adjusted by rotating the two support shafts 32, and the two first swing rods 34 are driven to form a conical guide channel, thereby guiding the workpiece at any position on the feed plate 31 to the center of the conveyor belt 2 for transmission, improving the stability of workpiece transmission.

[0044] Furthermore, referring to Figure 1 and Figure 2The first linkage component 35 includes a first gear 351, a first compound wheel 352, and a first pulley 353. The first gear 351 is sleeved and installed on the lower end of one of the support shafts 32. The first compound wheel 352 is rotatably installed on the bottom surface of the feed plate 31. The upper half of the first compound wheel 352 is circular, and the lower half is gear-shaped. The lower half of the first compound wheel 352 meshes with the first gear 351. The first pulley 353 is sleeved and installed on the lower end of the other support shaft 32. A first synchronous belt 354 is sleeved between the upper half of the first compound wheel 352 and the first pulley 353. When one support shaft 32 rotates clockwise, the meshing of the first gear 351 and the first compound wheel 352 causes the first compound wheel 352 to rotate counterclockwise. Then, the first synchronous belt 354 drives the first pulley 353 to rotate counterclockwise, which in turn drives the other support shaft 32 to rotate counterclockwise, thus causing the two support shafts 32 to rotate in opposite directions at the same angular velocity.

[0045] Furthermore, referring to Figure 1 and Figure 3 The control component 36 includes a support rod 361, a bearing block 362, a push rod 363, and a resistance spring 364. A mounting groove 331 is formed along the length of the side of the contact plate 33. Both ends of the support rod 361 are fixedly connected to two opposing side walls of the mounting groove 331. The push rod 363 is mounted on one side of the bearing block 362. One end of the push rod 363 is rotatably connected to the side of the bearing block 362, and the other end of the push rod 363 protrudes towards the side wall of the contact plate 33 to form a trigger part 3631. The trigger part 3631 abuts against the end of the first swing rod 34. The resistance spring 364 is sleeved on the support rod 361. One end of the resistance spring 364 is fixedly connected to the inner wall of the mounting groove 331, and the other end of the resistance spring 364 is fixedly mounted on the side of the bearing block 362 near the push rod 363. When an external force pushes the workpiece to move on one side, causing the first swing rod 34 to rotate relative to the side wall of the contact plate 33, the end of the first swing rod 34 abuts against the trigger part 3631, causing the push rod 363 to drive the bearing block 362 to slide. The resistance spring 364 is stretched, and the first swing rod 34 converts part of the kinetic energy of the workpiece when it first enters the conveyor belt 2 into the kinetic energy of the push rod 363 through elastic deflection. This energy is absorbed by the resistance spring 364, reducing the relative displacement between the workpiece and the conveyor belt 2, and preventing the workpiece from deviating from the center line of the conveyor belt 2 as much as possible. When the external force pushing the workpiece to move on one side disappears, the resistance spring 364 converts the elastic potential energy into the kinetic energy of the push rod 363, pushing the first swing rod 34 back to its original position. This causes the first swing rod 34 to adhere to the side wall of the contact plate 33, and moves the workpiece closer to the center line of the conveyor belt 2. This controls the position of the workpiece on the conveyor belt 2 when it first enters the conveyor belt 2, ensuring that the workpiece is conveyed as close to the center line of the conveyor belt 2 as possible, preventing the workpiece from falling off, and improving the stability of the workpiece conveying.

[0046] Furthermore, referring to Figure 1A guide plate 37 is also installed on the feed plate 31. The guide plate 37 is located on the side of the support shaft 32 away from the conveyor belt 2. One end of the guide plate 37 is welded to the side of the feed plate 31, and the other end of the guide plate 37 extends toward the side where the two support shafts 32 are close to each other. This allows the workpieces pushed onto the feed plate 31 to be gathered in the area between the two support shafts 32, preventing the workpieces from falling off the feed plate 31 and thus improving the stability of the workpiece transmission.

[0047] Reference Figure 1 and Figure 4 The discharge mechanism 4 is installed at the end of the conveyor belt 2 in the transmission direction. There are two discharge mechanisms 4, which are symmetrically installed on both sides of the conveyor belt 2. Each discharge mechanism 4 on each side includes a round shaft 41, a second swing arm 42, and a clamping plate 43. The round shaft 41 is rotatably installed on one side of the partition plate 22. A second linkage assembly 44 is installed between the two round shafts 41, which drives the two round shafts 41 to rotate in opposite directions. An electric drive rod 45 is also installed on the second linkage assembly 44. In this embodiment, the electric drive rod 45 is a cylinder, which can control the rotation direction of the second linkage assembly 44. In the discharge mechanism 4 on the same side, one end of the second swing arm 42 is fixedly connected to the circumference of the round shaft 41, and one end of the clamping plate 43 is hinged to the end of the second swing arm 42 away from the round shaft 41. Two sets of sliding components 46 are also provided on the partition plate 22. The two sets of sliding components 46 are located on opposite sides of the two clamping plates 43. The two sliding components 46 drive the two clamping plates 43 to be parallel to each other, forming a parallel channel for the workpiece on the conveyor belt 2 to move and be output.

[0048] Furthermore, referring to Figure 4 The second linkage assembly 44 includes a second gear 441, a second compound wheel 442, and a second pulley 443. The second gear 441 is fixedly mounted on the circumference of one of the round shafts 41. The second compound wheel 442 is rotatably mounted on the partition plate 22. The upper half of the second compound wheel 442 is circular, and the lower half is gear-shaped. The second gear 441 meshes with the lower half of the second compound wheel 442. The second pulley 443 is mounted on the circumference of the other round shaft 41. A second synchronous belt 444 is connected between the upper half of the second compound wheel 442 and the second pulley 443. A connecting clip 445 is fixedly connected to the side of the second synchronous belt 444. One end of the electric drive rod 45 is fixedly mounted on the frame 1, and the other end of the electric drive rod 45 is fixedly connected to the connecting clip 445. The electric drive rod 45 can control the second synchronous belt 444 to rotate clockwise or counterclockwise. When the timing belt rotates clockwise, the second pulley 443 and the second compound pulley 442 both rotate clockwise, while the second gear 441 rotates counterclockwise, thus causing the two circular shafts 41 to rotate in opposite directions at the same angular velocity.

[0049] Furthermore, referring to Figure 1 and Figure 4 The sliding assembly 46 includes a slide rail 461, a slider 462, and a sleeve 463. The slide rail 461 is fixedly mounted on the partition plate 22 and extends along the transmission direction of the conveyor belt 2. The slider 462 is slidably connected to the slide rail 461, and the sleeve 463 is slidably inserted through the slider 462. The length direction of the sleeve 463 is perpendicular to the length direction of the slide rail 461. The end of the sleeve 463 away from the slide rail 461 is fixedly connected to the side wall of the clamping plate 43, and the sleeve 463 is perpendicular to the clamping plate 43, ensuring that the clamping plate 43 is always parallel to the slide rail 461. By adjusting the position of the slider 462 relative to the slide rail 461, the position of the clamping plate 43 relative to the conveyor belt 2 can be adjusted, facilitating the docking of workpieces on the conveyor belt 2. By extending and retracting the sleeve 463 relative to the slider 462, the distance between the two clamping plates 43 can be adjusted, changing the distance between the parallel channels, thereby adapting to the external dimensions of different batches of workpieces.

[0050] Reference Figure 1 The synchronous link 5 is installed on one side of the conveyor belt 2. One end of the synchronous link 5 is fixedly connected to the circumference of the support shaft 32, and the other end of the synchronous link 5 is fixedly connected to the circumference of the round shaft 41. The synchronous link 5 enables the support shaft 32 and the round shaft 41 to rotate synchronously. Specifically, the synchronous link 5 includes a synchronous rod 51 and two rotating rods 52. One rotating rod 52 is fixedly installed on the periphery of the support shaft 32, and the other rotating rod 52 is fixedly installed on the periphery of the round shaft 41. The two rotating rods 52 are respectively rotatably installed at both ends of the synchronous rod 51. When the round shaft 41 rotates, the round shaft 41 drives one of the rotating rods 52 to rotate, the rotating rod 52 pushes the synchronous rod 51 to move, the synchronous rod 51 drives the other rotating rod 52 to move, and the other rotating rod 52 drives the support shaft 32 to move, so that the support shaft 32 rotates synchronously with the round shaft 41, thereby synchronizing the rotation angle of the first swing rod 34 with the rotation angle of the second swing rod 42, so that the width of the workpieces allowed to pass through the beginning and end of the conveyor belt 2 is the same, which is beneficial to improving the smoothness of the workpiece conveying process.

[0051] Reference Figure 1 and Figure 5The separating mechanism 6 is installed on one side of the conveyor belt 2. The separating mechanism 6 includes a first vertical shaft 61, a second vertical shaft 62, and a separating fork 63. The first vertical shaft 61 and the second vertical shaft 62 are both rotatably connected to the top surface of the partition plate 22. A swing rod 611 is fixedly connected to the periphery of the first vertical shaft 61. The swing rod 611 reciprocates, driving the first vertical shaft 61 to reciprocate and switch its rotation direction. A third linkage assembly 64 is installed between the first vertical shaft 61 and the second vertical shaft 62. The third linkage assembly 64 can drive the second vertical shaft 62 to rotate in the opposite direction to the first vertical shaft 61. There are two forks 63, one fork 63 is installed on the first vertical shaft 61 and the second vertical shaft 62. Each fork 63 includes a crossbar 631 and a railing 632. The crossbar 631 is a short arm and the railing 632 is a long arm. One end of the crossbar 631 is fixedly connected to the periphery of the first vertical shaft 61 or the second vertical shaft 62, and the railing 632 is fixedly connected to the other end of the crossbar 631 and is perpendicular to the crossbar 631.

[0052] During the counter-rotation of the first vertical shaft 61 and the second vertical shaft 62, the horizontal bars 631 on the periphery of the first vertical shaft 61 and the horizontal bars 631 on the periphery of the second vertical shaft 62 alternately run parallel to the conveyor belt 2. Specifically, when the horizontal bars 631 on the periphery of the first vertical shaft 61 are parallel to the conveyor belt 2, that is, when the bars 632 on the periphery of the first vertical shaft 61 are located on the upper surface of the conveyor belt 2, the bars 632 on the periphery of the first vertical shaft 61 are in a blocking state, resisting and blocking the workpiece, while the bars 632 on the periphery of the second vertical shaft 62 are in an inclined state, allowing the workpiece to move and allowing it to pass; when the horizontal bars 631 on the periphery of the second vertical shaft 62 are parallel to the conveyor belt 2, that is, when the bars 632 on the periphery of the second vertical shaft 62 are located on the upper surface of the conveyor belt 2, the bars 632 on the periphery of the first vertical shaft 61 are in an inclined state, allowing the workpiece that is in contact with them to move and allowing it to pass, while the bars 632 on the periphery of the second vertical shaft 62 are in a blocking state, blocking the workpieces that are subsequently conveyed. By driving the horizontal bars 631 on the periphery of the first vertical shaft 61 and the second vertical shaft 62 to alternately run parallel to the conveyor belt 2 through the swing rod 611, the two separating forks 63 on the first vertical shaft 61 and the second vertical shaft 62 can alternately perform the following actions: one separating fork 63 blocks the workpiece, and the other separating fork 63 releases the workpiece. This allows for the sequential and individual transport of workpieces. On the one hand, it can prevent workpieces from piling up on the conveyor belt 2 and improve the transport efficiency of workpieces on the conveyor belt 2. On the other hand, it can prevent workpieces from squeezing each other and falling off the conveyor belt 2, thus improving the stability of the transport of workpieces on the conveyor belt 2.

[0053] Furthermore, referring to Figure 5The third linkage component 64 includes a fixed plate 641 and an intermediate shaft 642. A first vertical shaft 61 is rotatably mounted on one end of the fixed plate 641, and an intermediate shaft 642 is rotatably mounted on the other end of the fixed plate 641. Both the first vertical shaft 61 and the intermediate shaft 642 are fitted with reverse gears 643, which mesh with each other, causing the intermediate shaft 642 and the first vertical shaft 61 to rotate in opposite directions at the same angular velocity. Third pulleys 644 are fitted on both the intermediate shaft 642 and the second vertical shaft 62, and a third synchronous belt 645 is fitted between the two third pulleys 644. Under the driving action of the third synchronous belt 645, the second vertical shaft 62 and the intermediate shaft 642 rotate synchronously at the same angular velocity, thereby causing the first vertical shaft 61 and the second vertical shaft 62 to rotate in opposite directions at the same angular velocity.

[0054] Reference Figure 5 A telescopic drive component 613 is fixedly installed on the frame 1. In this embodiment, the telescopic drive component 613 is a hydraulic cylinder. One end of the telescopic drive component 613 is fixedly connected to the frame 1, and the other end of the telescopic drive component 613 is rotatably mounted with an abutment wheel 614. A sliding groove 612 is provided along the length direction of the swing rod 611, and the abutment wheel 614 is slidably connected to the inner wall of the sliding groove 612. From the perspective of the figure, when the telescopic drive component 613 extends, the abutment wheel 614 rolls in the sliding groove 612, pushing the swing rod 611 to swing around the first vertical axis 61, driving the first vertical axis 61 to rotate clockwise. When the telescopic drive component 613 shortens, the abutment wheel 614 rolls in the sliding groove 612, pushing the swing rod 611 to swing around the first vertical axis 61, driving the first vertical axis 61 to rotate counterclockwise. The change in the length of the telescopic drive component 613 controls the change in the rotation direction of the first vertical axis 61.

[0055] Secondly, the present invention also proposes a limiting method applicable to the above-mentioned workpiece limiting device, comprising the following steps:

[0056] S1. Place the workpiece on the feeding plate 31 and push the workpiece from the feeding plate 31 into the conveyor belt 2, so that the workpiece moves with the transmission direction of the conveyor belt 2.

[0057] S2. Start the electric drive rod 45 to drive the second linkage component 44 to rotate, and drive the two round shafts 41 to rotate in opposite directions. The round shaft 41 on one side of the conveyor belt 2 drives the support shaft 32 on the same side to rotate synchronously through the synchronous connecting rod 5.

[0058] S3. The support shaft 32 drives another support shaft 32 to rotate in the opposite direction through the first linkage component 35. The two support shafts 32 drive the two first rocker arms 34 to move closer or further apart from each other, forming a guide channel for workpiece input, preventing workpiece from falling, thereby improving the stability of workpiece input.

[0059] S4. The two round shafts 41 drive the two clamping plates 43 to move closer or further apart by driving the second swing arm 42, forming a parallel channel for workpiece output, effectively restricting the workpiece from being transported within the two clamping plates 43, preventing the workpiece from falling, and thus improving the stability of workpiece output.

[0060] S5. During the process of conveying the workpiece from the guide channel to the parallel channel, the swing rod 611 is driven to swing back and forth. The swing rod 611 drives the first vertical shaft 61 to rotate. The first vertical shaft 61 drives the second vertical shaft 62 to rotate synchronously through the third linkage assembly 64. The separation fork 63 of the first vertical shaft 61 and the separation fork 63 of the second vertical shaft 62 alternately block multiple workpieces on the conveyor belt 2, so that multiple workpieces are separated and conveyed one by one in sequence, thereby improving the stability of the workpiece during the conveying process.

[0061] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, the present invention is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present invention are within the scope of protection of the present invention. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the present invention.

Claims

1. A workpiece limiting device for an intelligent production line for rail vehicles, comprising: Rack (1); A conveyor belt (2) is mounted on the frame (1). A drive assembly (21) is mounted on the frame (1). The drive assembly (21) is used to drive the conveyor belt (2) to rotate. A partition (22) is provided through the conveyor belt (2). The upper surface of the partition (22) abuts against the inner surface of the conveyor belt (2). A feeding mechanism (3) is located at the beginning of the transmission direction of the conveyor belt (2). The feeding mechanism (3) includes a feeding plate (31), a support shaft (32), an abutment plate (33), and a first swing rod (34). The feeding plate (31) is located at the end of the conveyor belt (2). The support shaft (32) includes two shafts, both of which are rotatably connected to the feeding plate (31), and the two support shafts (32) are symmetrical about the centerline of the feeding plate (31). A first linkage component (35) is provided between the support shafts (32), and the first linkage component (35) drives the two support shafts (32) to rotate in opposite directions; the abutment plate (33) is fixedly connected to the periphery of the support shaft (32), the first swing rod (34) is hinged to the side wall of the abutment plate (33), and an adjustment component (36) is provided on the abutment plate (33), the adjustment component (36) is used to drive the first swing rod (34) to attach to the side wall of the abutment plate (33); A discharge mechanism (4) is provided at the end of the conveyor belt (2) in the transmission direction. There are two discharge mechanisms (4), and the two discharge mechanisms (4) are symmetrically arranged on both sides of the conveyor belt (2). Each discharge mechanism (4) includes a round shaft (41), a second swing rod (42), and a clamping plate (43). The round shaft (41) is rotatably connected to the partition plate (22). A second linkage component (44) is provided between the two round shafts (41). The second linkage component (44) drives the two round shafts (41) in opposite directions. Rotation; an electric drive rod (45) is provided on the second linkage component (44), the electric drive rod (45) is used to control the rotation direction of the second linkage component (44); one end of the second swing rod (42) is fixedly connected to the circumference of the round shaft (41), and one end of the clamping plate (43) is hinged to the end of the second swing rod (42) away from the round shaft (41); a sliding component (46) is also provided on the partition plate (22), the sliding component (46) drives the two clamping plates (43) to be arranged parallel to each other on the conveyor belt (2); A synchronous connecting rod (5) is provided on one side of the conveyor belt (2). One end of the synchronous connecting rod (5) is fixedly connected to the periphery of the support shaft (32), and the other end of the synchronous connecting rod (5) is fixedly connected to the periphery of the round shaft (41). The synchronous connecting rod (5) is used to drive the support shaft (32) and the round shaft (41) to rotate synchronously. A separating mechanism (6) is disposed on the side of the conveyor belt (2). The separating mechanism (6) includes a first vertical shaft (61), a second vertical shaft (62), and a separating fork (63). The first vertical shaft (61) and the second vertical shaft (62) are both rotatably disposed on the partition plate (22). A swing rod (611) is disposed on the periphery of the first vertical shaft (61), and the swing rod (611) is used to drive the first vertical shaft (61) to rotate. A third linkage component (64) is provided between the shafts (62). The third linkage component (64) drives the second vertical shaft (62) to rotate in the opposite direction to the first vertical shaft (61). There are two separation forks (63). One separation fork (63) is sleeved on both the first vertical shaft (61) and the second vertical shaft (62). Each separation fork (63) includes a crossbar (631) and a railing (632), and the railing (632) is perpendicular to the crossbar (631).

2. The workpiece limiting device for an intelligent production line for rail vehicles according to claim 1, characterized in that: The first linkage assembly (35) includes a first gear (351), a first compound wheel (352), and a first pulley (353). The first gear (351) is sleeved on the lower end of one of the support shafts (32). The first compound wheel (352) is rotatably connected to the feed plate (31). The first gear (351) meshes with the first compound wheel (352). The first pulley (353) is sleeved on the other support shaft (32). A first synchronous belt (354) is sleeved between the first compound wheel (352) and the first pulley (353).

3. The workpiece limiting device for an intelligent production line for rail vehicles according to claim 1, characterized in that, The control component (36) includes a support rod (361), a bearing block (362), a push rod (363), and a resistance spring (364). The contact plate (33) has a mounting groove (331). The support rod (361) is fixedly connected to the inner wall of the mounting groove (331). The bearing block (362) is slidably connected to the support rod (361). One end of the push rod (363) is rotatably connected to one side of the bearing block (362). The other end of the rod is provided with a trigger part (3631), which protrudes from the side wall of the contact plate (33) and abuts against the side wall of the first swing rod (34). The resistance spring (364) is sleeved on the support rod (361). One end of the resistance spring (364) is fixedly connected to the inner side wall of the mounting groove (331), and the other end of the resistance spring (364) is fixedly connected to the side of the bearing block (362) near the push rod (363).

4. The workpiece limiting device for an intelligent production line for rail vehicles according to claim 1, characterized in that, The feeding plate (31) is provided with a guide plate (37), one end of which is fixedly connected to the side wall of the feeding plate (31), and the other end of which extends toward the side where the two support shafts (32) are close to each other.

5. The workpiece limiting device for an intelligent production line for rail vehicles according to claim 1, characterized in that: The second linkage assembly (44) includes a second gear (441), a second compound wheel (442), and a second pulley (443). The second gear (441) is fixedly sleeved on the circumference of one of the round shafts (41). The second compound wheel (442) is rotatably connected to the partition plate (22). The second pulley (443) is sleeved on the circumference of the other round shaft (41). The second gear (441) meshes with the second compound wheel (442). A second synchronous belt (444) is sleeved between the second compound wheel (442) and the second pulley (443). A connecting clip (445) is fixedly connected to the side of the second synchronous belt (444). The end of the electric drive rod (45) is fixedly connected to the connecting clip (445).

6. The workpiece limiting device for an intelligent production line for rail vehicles according to claim 1, characterized in that, The sliding assembly (46) includes a slide rail (461), a slider (462), and a sleeve (463). The slide rail (461) is disposed on the partition plate (22) and extends along the transmission direction of the conveyor belt (2). The slider (462) is slidably connected to the slide rail (461). The sleeve (463) is slidably inserted through the slider (462) and is perpendicular to the slide rail (461). One end of the sleeve (463) away from the slide rail (461) is vertically fixedly connected to the clamping plate (43).

7. The workpiece limiting device for an intelligent production line for rail vehicles according to claim 1, characterized in that, The synchronizing link (5) includes a synchronizing rod (51) and two rotating rods (52). One of the rotating rods (52) is fixedly connected to the periphery of the support shaft (32), and the other rotating rod (52) is fixedly connected to the periphery of the round shaft (41). The two rotating rods (52) are respectively rotatably connected to the two ends of the synchronizing rod (51).

8. The workpiece limiting device for an intelligent production line for rail vehicles according to claim 1, characterized in that, The third linkage component (64) includes a fixed plate (641) and an intermediate shaft (642). The first vertical shaft (61) is rotatably connected to one end of the fixed plate (641), and the intermediate shaft (642) is rotatably connected to the other end of the fixed plate (641). Both the first vertical shaft (61) and the intermediate shaft (642) are fitted with reverse gears (643), and the two reverse gears (643) mesh with each other. Both the intermediate shaft (642) and the second vertical shaft (62) are fitted with third pulleys (644), and a third synchronous belt (645) is fitted between the two third pulleys (644).

9. The workpiece limiting device for an intelligent production line for rail vehicles according to claim 1, characterized in that, The frame (1) is provided with a telescopic drive component (613), one end of which is provided with an abutment wheel (614). The swing rod (611) is provided with a slide groove (612) along the length direction, and the abutment wheel (614) is slidably connected to the inner wall of the slide groove (612).

10. A limiting method for a workpiece limiting device applicable to any one of claims 1-9 in a smart production line for rail vehicles, characterized in that, Includes the following steps: S1. Place the workpiece on the feed plate (31) and push the workpiece from the feed plate (31) into the conveyor belt (2) so that the workpiece moves with the transmission direction of the conveyor belt (2); S2. Start the electric drive rod (45) to drive the second linkage component (44) to rotate, and drive the two round shafts (41) to rotate in opposite directions. The round shaft (41) on one side of the conveyor belt (2) drives the support shaft (32) on the same side to rotate synchronously through the synchronous connecting rod (5). S3. The support shaft (32) drives another support shaft (32) to rotate in the opposite direction through the first linkage component (35). The two support shafts (32) drive the two first rocker arms (34) to move closer or further apart from each other, forming a guide channel for workpiece input. S4. The two circular shafts (41) drive the second rocker arm (42) to move the two clamping plates (43) closer or further apart to each other, forming a parallel channel for workpiece output. S5. During the process of conveying the workpiece from the guide channel to the parallel channel, the swing rod (611) is driven to swing back and forth. The swing rod (611) drives the first vertical shaft (61) to rotate. The first vertical shaft (61) drives the second vertical shaft (62) to rotate synchronously through the third linkage component (64). The separation fork (63) of the first vertical shaft (61) and the separation fork (63) of the second vertical shaft (62) alternately block multiple workpieces on the conveyor belt (2), so that multiple workpieces are separated and conveyed one by one in sequence.

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