Workpiece limiting device and limiting method for intelligent production line of railway vehicle

Abstract

The invention relates to the technical field of railway vehicle production, and provides a workpiece limiting device and method for an intelligent railway vehicle production line. The workpiece limiting device comprises a rack, a conveying belt, a feeding mechanism, a discharging mechanism, a synchronous connecting rod and a separating mechanism; the feeding mechanism comprises a feeding plate, a supporting shaft, an abutting plate and a first swing rod. The feeding mechanism is used for limiting input workpieces. The discharging mechanism is arranged at the tail end of the conveying belt in the transmission direction, the discharging mechanism comprises a circular shaft, a second swing rod and a clamping plate, and the discharging mechanism is used for limiting the output workpieces; the synchronous connecting rod is used for connecting the supporting shaft and the circular shaft; the separating mechanism is arranged on the side face of the conveying belt, comprises a first vertical shaft, a second vertical shaft and a separating fork and is used for separating workpieces on the conveying belt; the conveying stability of the workpieces on the conveying belt is improved, and the conveying efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rail vehicle production, and in particular to a workpiece limiting device and limiting method for an intelligent production line of a rail vehicle. Background Art

[0002] With the rapid development of social economy, urban traffic pressure is increasing year by year. In order to alleviate urban traffic pressure, rail vehicles are put into mass production and used in the transportation process. Whether it is transporting passengers or cargo, rail vehicles have played an irreplaceable role. Therefore, the application demand of rail vehicles is increasing year by year. For the production of rail vehicles, assembly lines are used to assemble their bodies. Then, the parts required for assembly need to be transported to the assembly table by conveying equipment. In related technologies, conveying equipment usually uses conveyor belts to transport various parts.

[0003] With regard to the above-mentioned related technologies, the parts transported on the conveyor belt surface are prone to unstable center of gravity due to the vibration or shaking of the conveyor belt, and fall from the conveyor belt. After the parts fall, they will be irreversibly deformed and need to be returned to the factory for repair, which seriously affects the efficient assembly of the entire car body. Therefore, the conveyor belt has the problem of unstable workpiece transmission and low transmission efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a workpiece limiting device and limiting method for a rail vehicle intelligent production line to solve the problems of unstable workpiece transmission and low transmission efficiency.

[0005] In order to achieve the above-mentioned purpose, in the first aspect, the present invention provides a workpiece limiting device for a rail vehicle intelligent production line, which adopts the following technical solutions:

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

[0007] A conveyor belt is arranged on the frame, a driving assembly is arranged on the frame, and the driving assembly is used to drive the conveyor belt to rotate. A partition is arranged 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 arranged at the starting end of the transmission direction of the conveyor belt, and the feeding mechanism includes a feeding plate, a support shaft, a resistance plate and a first swing arm. The feeding plate is arranged at the end of the conveyor belt, and the support shaft includes two, both of which are rotatably connected to the feeding plate, and the two support shafts are symmetrical about the center line of the feeding plate; a first linkage component is arranged between the two support shafts, and the first linkage component drives the two support shafts to rotate in opposite directions; the resistance plate is fixedly connected to the peripheral side of the support shaft, the first swing arm is hinged to the side wall of the resistance plate, and a regulating component is arranged on the resistance plate, and the regulating component is used to drive the first swing arm to adhere to the side wall of the resistance plate;

[0009] A discharging mechanism is arranged at the end of the transmission direction of the conveyor belt, and two discharging mechanisms are arranged, and the two discharging mechanisms are symmetrically arranged on both sides of the conveyor belt; each of the discharging mechanisms comprises a circular shaft, a second swing rod and a clamping plate, the circular shaft is rotatably connected to the partition, a second linkage assembly is arranged between the two circular shafts, and the second linkage assembly drives the two circular shafts to rotate in opposite directions; an electric drive rod is arranged on the second linkage assembly, and the electric drive rod is used to control the rotation direction of the second linkage assembly; one end of the second swing rod is fixedly connected to the circumference of the circular shaft, and one end of the clamping plate is hinged to the end of the second swing rod away from the circular shaft; a sliding assembly is also arranged on the partition, and the sliding assembly drives the two clamping plates to be arranged in parallel on the conveyor belt;

[0010] A synchronous connecting rod is arranged on a side of the conveyor belt, one end of the synchronous connecting rod is fixedly connected to the peripheral side of the support shaft, and the other end of the synchronous connecting rod is fixedly connected to the peripheral side of the round shaft, and the synchronous connecting rod is used to drive the support shaft and the round shaft to rotate synchronously;

[0011] A separation mechanism is arranged on the side of the conveyor belt, and the separation mechanism includes a first vertical axis, a second vertical axis and a separation fork. The first vertical axis and the second vertical axis are both rotatably arranged on the partition. A swing rod is arranged on the circumference of the first vertical axis, and the swing rod is used to drive the first vertical axis to rotate; a third linkage assembly is arranged between the first vertical axis and the second vertical axis, and the third linkage assembly drives the second vertical axis to rotate in the opposite direction to the first vertical axis. The separation fork includes two, and the first vertical axis and the second vertical axis are each provided with a separation fork, and each separation fork includes a cross bar and a railing, and the railing is perpendicular to the cross bar.

[0012] As an optimization of the workpiece limiting device of a rail vehicle intelligent production line, the first linkage assembly includes a first gear, a first composite wheel and a first pulley, the first gear is sleeved on the lower end of one of the support shafts, the first composite wheel is rotatably connected to the feed plate, the first gear is meshed with the first composite wheel, the first pulley is sleeved on the other support shaft, and a first synchronous belt is sleeved between the first composite wheel and the first pulley.

[0013] As an optimization of the workpiece limiting device of a rail vehicle intelligent production line, the regulating component includes a support rod, a bearing block, a push rod and a resistance spring, the contact plate is provided with a mounting groove, 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 out of the side wall of the contact plate and abuts against the side wall of the first rocker arm, the resistance spring is sleeved on the support rod, one end of the resistance spring is fixedly connected to the inner wall of the mounting groove, and one end of the resistance spring is fixedly connected to a side of the bearing block close to the push rod.

[0014] As an optimization of the workpiece limiting device of a rail vehicle intelligent production line, a guide plate is provided on the feed plate, one end of the guide plate is fixedly connected to the side wall of the feed 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 of a rail vehicle intelligent production line, the second linkage assembly includes a second gear, a second composite wheel and a second pulley, the second gear is fixedly sleeved on the circumferential side of one of the circular shafts, the second composite wheel is rotatably connected to the partition, the second pulley is sleeved on the circumferential side of the other circular shaft, the second gear is meshed with the second composite wheel, a second synchronous belt is sleeved between the second composite wheel and the second pulley, a connecting card is fixedly connected to the side of the second synchronous belt, and the end of the electric drive rod is fixedly connected to the connecting card.

[0016] As an optimization of the workpiece limiting device of a rail vehicle intelligent production line, the sliding assembly includes a slide rail, a slider and a sleeve. The slide rail is arranged on the partition, the slide rail extends along the transmission direction of the conveyor belt, the slider is slidably connected to the slide rail, the sleeve is slidably penetrated 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 of a rail vehicle intelligent production line, the synchronous connecting rod includes a synchronous rod and two rotating rods, one of the rotating rods is fixedly connected to the circumferential side of the support shaft, and the other rotating rod is fixedly connected to the circumferential side of the circular shaft, and 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 of a rail vehicle intelligent production line, the third linkage assembly 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, and the first vertical shaft and the intermediate shaft are both provided with reverse gears, and the two reverse gears are meshed with each other; the intermediate shaft and the second vertical shaft are both provided with third pulleys, and a third synchronous belt is provided between the two third pulleys.

[0019] As an optimization of the workpiece limiting device of a rail vehicle intelligent production line, a telescopic driving member is provided on the frame, a resistance wheel is provided at one end of the telescopic driving member, a slide groove is provided on the swing rod along the length direction, and the resistance wheel is slidably connected to the inner wall of the slide groove.

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

[0021] S1, placing the workpiece on the feed plate, and pushing the workpiece from the feed plate into the conveyor belt, so that the workpiece moves along the transmission direction of the conveyor belt;

[0022] S2, starting the electric drive rod to drive the second linkage assembly to rotate, and drive the two circular shafts to rotate in opposite directions, and the circular 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 assembly, and the two support shafts drive the two first swing rods to move closer to or away from each other, forming a guide channel for inputting workpieces;

[0024] S4, the two circular shafts drive the two clamping plates to move closer to or farther from each other by driving the second swing rod, thereby forming a parallel channel for outputting the workpiece;

[0025] S5. In 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 axis to rotate, and the first vertical axis drives the second vertical axis to rotate synchronously through the third linkage assembly; the separation fork of the first vertical axis and the separation fork of the second vertical axis alternately block the multiple workpieces on the conveyor belt, so that the multiple workpieces are separated and conveyed one by one in sequence.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] 1. In the feeding mechanism, the two supporting shafts rotate in opposite directions through the first linkage assembly, so that the distance between the two first swing rods adapts to the size of the workpiece, thereby guiding the workpiece to the center line of the conveyor belt for transportation, preventing the workpiece from falling, and thus improving the stability of workpiece transmission;

[0028] 2. In the discharge mechanism, the electric drive rod and the connection card can make the second linkage assembly operate, drive the two circular shafts to rotate in opposite directions, and adjust the distance between the two clamping plates through the second swing rod, effectively limit the distance between the two clamping plates, and effectively limit the workpiece in the middle of the conveyor belt to achieve stable movement;

[0029] 3. In the separation mechanism, the first vertical axis and the second vertical axis are rotated synchronously through the third linkage assembly, and the position difference of the separation forks on the first vertical axis and the second vertical axis is utilized to make one of the two separation forks in a blocking state and the other in a releasing state, and they are performed alternately, so as to control the movement and stop of the workpieces on the conveyor belt, arrange the workpieces, realize sequential individual conveying, prevent a large number of workpieces from squeezing each other, avoid crushing or blockage, and thus improve the transmission efficiency of the workpieces. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

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

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

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

[0034] Figure 4 This is a schematic diagram of the overall structure of the discharging mechanism of the embodiment of the present application;

[0035] Figure 5 This is a schematic diagram of the overall structure of the separation mechanism of an embodiment of the present application;.

[0036] In the figure: 1, frame; 2, conveyor belt; 21, driving assembly; 211, motor; 212, driving roller; 213, transmission belt; 22, partition; 3, feeding mechanism; 31, feeding plate; 32, supporting shaft; 33, contact plate; 331, mounting groove; 34, first swing rod; 35, first linkage assembly; 351, first gear; 352, first composite wheel; 353, first pulley; 354, first synchronous belt; 36, regulating assembly; 361, supporting rod; 362, bearing block; 363, push rod; 3631, triggering part; 364, resistance spring; 37, guide plate; 4, discharging mechanism; 41, round shaft; 42, second swing rod; 43, clamping plate; 44, second linkage group Component; 441, second gear; 442, second composite 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, separation mechanism; 61, first vertical axis; 611, swing rod; 612, slide groove; 613, telescopic driving component; 614, contact wheel; 62, second vertical axis; 63, separation fork; 631, cross bar; 632, railing; 64, third linkage assembly; 641, fixed plate; 642, intermediate shaft; 643, reverse gear; 644, third pulley; 645, third synchronous belt. DETAILED DESCRIPTION

[0037] To make the technical solutions and advantages of the present invention more clear, the present invention and its beneficial effects will be described in further detail below in conjunction with specific implementation methods and accompanying drawings, but the implementation methods of the present invention are not limited thereto.

[0038] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional methods such as mature bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment all adopt the conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0040] The following is combined with Figure 1-5, further details of this application are given.

[0041] In the first aspect, the present application provides a workpiece limiting device for a rail vehicle intelligent production line, which adopts the following technical solution:

[0042] Reference Figure 1 A workpiece limiting device for an intelligent production line of a rail vehicle comprises 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 driving assembly 21 is mounted on the frame 1. A partition 22 is installed through the conveyor belt 2, and the upper surface of the partition 2 abuts against the inner surface of the conveyor belt 2, providing support for the middle part of the conveyor belt 2 to prevent the middle part of the conveyor belt 2 from being too heavy and concave, thereby improving the carrying capacity and conveying stability of the conveyor belt 2. Specifically, the driving assembly 21 comprises a motor 211 and two driving rollers 212, the motor 211 is fixedly mounted on the frame 1, and the two driving rollers 212 are rotatably mounted on the two ends of the conveyor belt 2, respectively, and a transmission wheel is fixedly mounted on one end of one of the driving rollers 212 and the output shaft of the motor 211, and a transmission belt 213 is commonly sleeved on the two transmission wheels. When in use, the output shaft of the motor 211 drives the transmission wheel to rotate, and the transmission wheel drives the driving roller 212 to rotate through the transmission belt 213. The rotation of the driving roller 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 starting end of the transmission direction of the conveyor belt 2. The feeding mechanism 3 includes a feeding plate 31, a support shaft 32, a contact plate 33 and a first swing rod 34. The feeding plate 31 is fixedly mounted at the end of the conveyor belt 2. The support shaft 32 includes two support shafts 32. The two support shafts 32 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. The first linkage assembly 35 enables the two support shafts 32 to rotate in opposite directions. A contact plate 33 is fixedly connected to the circumferential side of each support shaft 32. The side wall of the contact plate 33 at one end away from the support shaft 32 is hinged to the first swing rod 34. A regulating assembly 36 is installed on the contact plate 33. The regulating assembly 36 can drive the first swing rod 34 to abut against the side wall of the contact plate 33. When the workpiece is pushed from the feed plate 31 to the conveyor belt 2, the two support shafts 32 are rotated in the direction to adjust the angle between the two contact plates 33, and the two first rocker arms 34 are driven to form a conical introduction channel, so that the workpiece at any position on the feed plate 31 is guided to the center of the conveyor belt 2 for transfer, thereby improving the smoothness of the workpiece transmission.

[0044] Further, refer to Figure 1 and Figure 2The first linkage assembly 35 includes a first gear 351, a first composite 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, and the first composite wheel 352 is rotatably installed on the bottom surface of the feed plate 31. The upper half of the first composite wheel 352 is circular, and the lower half is in the shape of a gear. The lower half of the first composite wheel 352 is meshed with the first gear 351; the first pulley 353 is sleeved and installed on the lower end of the other support shaft 32, and a first synchronous belt 354 is sleeved between the upper half of the first composite wheel 352 and the first pulley 353. When one support shaft 32 rotates clockwise, the first composite wheel 352 rotates counterclockwise through the meshing of the first gear 351 and the first composite wheel 352, and then the first pulley 353 is driven counterclockwise by the first synchronous belt 354, driving the other support shaft 32 to rotate counterclockwise, so that the two support shafts 32 rotate in opposite directions at the same angular velocity.

[0045] Further, refer to Figure 1 and Figure 3 The regulating assembly 36 includes a support rod 361, a bearing block 362, a push rod 363 and a resistance spring 364. A mounting groove 331 is provided on the side of the abutment plate 33 along the length direction. Both ends of the support rod 361 are fixedly connected to two opposite side walls of the mounting groove 331 respectively. The push rod 363 is installed 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. The other end of the push rod 363 protrudes and extends toward the side wall of the abutment plate 33 to form a trigger portion 3631. The trigger portion 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. The other end of the resistance spring 364 is fixedly installed on a side of the bearing block 362 close to the push rod 363. When the external force pushes the workpiece to move unilaterally and pushes 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 contacts the pushing trigger part 3631, so that the push rod 363 drives the bearing block 362 to slide, and the resistance spring 364 is stretched. 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, and is absorbed by the resistance spring 364, thereby reducing the relative displacement between the workpiece and the conveyor belt 2, so that the workpiece does not deviate from the center line of the conveyor belt 2 as much as possible; and when the external force pushing the workpiece to move unilaterally 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 to reset, so that the first swing rod 34 is attached to the side wall of the contact plate 33, and the workpiece is moved close to the center line of the conveyor belt 2, thereby adjusting the position of the workpiece on the conveyor belt 2 when it first enters the conveyor belt 2, so that the workpiece is transported as much as possible on the center line of the conveyor belt 2, avoiding the workpiece from falling, which is conducive to improving the stability of workpiece transportation.

[0046] Furthermore, refer to Figure 1A guide plate 37 is also installed on the feed plate 31, and 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, so that the workpiece pushed on the feed plate 31 can be gathered to the area between the two support shafts 32, so as to prevent the workpiece from falling on the feed plate 31, thereby improving the stability of workpiece transmission.

[0047] Reference Figure 1 and Figure 4 , the discharging mechanism 4 is installed at the end of the transmission direction of the conveyor belt 2. The discharging mechanism 4 includes two, and the two discharging mechanisms 4 are symmetrically installed on both sides of the conveyor belt 2. The discharging mechanism 4 on each side includes a circular shaft 41, a second rocker arm 42 and a clamping plate 43. The circular shaft 41 is rotatably installed on one side of the partition 22, and a second linkage assembly 44 is installed between the two circular shafts 41. The second linkage assembly 44 drives the two circular 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, and the electric drive rod 45 can control the rotation direction of the second linkage assembly 44. In the discharging mechanism 4 on the same side, one end of the second rocker arm 42 is fixedly connected to the circumferential side of the circular shaft 41, and one end of the clamping plate 43 is hinged to the end of the second rocker arm 42 away from the circular shaft 41. Two sets of sliding components 46 are also provided on the partition 22. The two sets of sliding components 46 are respectively located on the sides of the two clamping plates 43 that are away from each other. The two sliding components 46 jointly drive the two clamping plates 43 to be parallel to each other to form parallel channels for the workpieces on the conveyor belt 2 to move and output.

[0048] Further, refer to Figure 4 The second linkage assembly 44 includes a second gear 441, a second composite wheel 442, and a second pulley 443. The second gear 441 is fixedly mounted on the circumference of one of the circular shafts 41, and the second composite wheel 442 is rotatably mounted on the partition 22. The upper half of the second composite wheel 442 is circular, and the lower half is in the shape of a gear. The second gear 441 is meshed with the lower half of the second composite wheel 442; the second pulley 443 is mounted on the circumference of the other circular shaft 41, and a second synchronous belt 444 is sleeved between the upper half of the second composite wheel 442 and the second pulley 443. A connecting card 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 card 445. The electric drive rod 45 can control the second synchronous belt 444 to rotate clockwise or counterclockwise. When the synchronous belt rotates clockwise, the second pulley 443 and the second composite wheel 442 both rotate clockwise, and the second gear 441 rotates counterclockwise, so that the two circular shafts 41 rotate in opposite directions at the same angular velocity.

[0049] Further, refer 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 22, and the slide rail 461 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 penetrated 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, so that the clamping plate 43 can always be 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, so as to facilitate docking of the workpieces on the conveyor belt 2; by the extension and retraction of the sleeve 463 relative to the slider 462, the distance between the two clamping plates 43 can be adjusted, and the distance between the parallel channels can be changed, so as to adapt 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 circumferential side of the support shaft 32, and the other end of the synchronous link 5 is fixedly connected to the circumferential side of the circular shaft 41. The synchronous link 5 can make the support shaft 32 and the circular shaft 41 rotate synchronously. Specifically, the synchronous connecting rod 5 includes a synchronous rod 51 and two rotating rods 52, one of which is fixedly installed on the circumference of the support shaft 32, and the other is fixedly installed on the circumference of the circular shaft 41. The two rotating rods 52 are rotatably installed on the two ends of the synchronous rod 51. When the circular shaft 41 rotates, the circular shaft 41 drives one of the rotating rods 52 to rotate, and the rotating rod 52 pushes the synchronous rod 51 to move, and 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 circular shaft 41, and then the rotation angle of the first swing rod 34 is synchronized with the rotation angle of the second swing rod 42, so that the width allowed for the workpiece to pass through at the starting and end ends 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 separation mechanism 6 is installed on one side of the conveyor belt 2, and the separation mechanism 6 includes a first vertical shaft 61, a second vertical shaft 62 and a separation fork 63. The first vertical shaft 61 and the second vertical shaft 62 are both rotatably connected and installed on the top surface of the partition 22. The circumferential side of the first vertical shaft 61 is fixedly connected with a swing rod 611, and the swing rod 611 swings back and forth to drive the first vertical shaft 61 to switch the rotation direction back and forth. A third linkage assembly 64 is installed between the first vertical shaft 61 and the second vertical shaft 62, and the third linkage assembly 64 can drive the second vertical shaft 62 to rotate in the opposite direction of the first vertical shaft 61. There are two separation forks 63, one separation fork 63 is installed on the first vertical axis 61 and the second vertical axis 62, each separation fork 63 includes a cross bar 631 and a railing 632, the cross bar 631 is a short arm, and the railing 632 is a long arm, wherein one end of the cross bar 631 is fixedly connected to the peripheral side of the first vertical axis 61 or the second vertical axis 62, and the railing 632 is fixedly connected to the other end of the cross bar 631, and the railing 632 is perpendicular to the cross bar 631.

[0052] During the reverse rotation of the first vertical shaft 61 and the second vertical shaft 62, the crossbar 631 around the first vertical shaft 61 and the crossbar 631 around the second vertical shaft 62 are alternately parallel to the conveyor belt 2. Specifically, when the crossbar 631 around the first vertical shaft 61 is parallel to the conveyor belt 2, that is, the railing 632 around the first vertical shaft 61 is located on the upper surface of the conveyor belt 2, the railing 632 around the first vertical shaft 61 is in a blocking state, resisting and blocking the workpiece, and the railing 632 around the second vertical shaft 62 is in an inclined state, allowing the workpiece to pass; when the crossbar 631 around the second vertical shaft 62 is parallel to the conveyor belt 2, that is, the railing 632 around the second vertical shaft 62 is located on the upper surface of the conveyor belt 2, the railing 632 around the first vertical shaft 61 is in an inclined state, which can move the workpiece that is in conflict with it, and release the workpiece, and the railing 632 around the second vertical shaft 62 is in a blocking state, blocking the subsequent workpiece conveyed. By driving the cross bar 631 on the side of the first vertical axis 61 and the cross bar 631 on the side of the second vertical axis 62 to be alternately parallel to the conveyor belt 2 by the swing rod 611, the two separation forks 63 on the first vertical axis 61 and the second vertical axis 62 can be made to block the workpiece with one separation fork 63 and release the workpiece with the other separation fork 63 in turn, thereby realizing the sequential conveying of the workpieces one by one. On the one hand, it can prevent the workpieces from being piled up on the conveyor belt 2, thereby improving the transmission efficiency of the workpieces on the conveyor belt 2. On the other hand, it can prevent the workpieces from being squeezed against each other and falling off the conveyor belt 2, thereby improving the transmission stability of the workpieces on the conveyor belt 2.

[0053] Further, refer to Figure 5The third linkage assembly 64 includes a fixed plate 641 and an intermediate shaft 642. The first vertical shaft 61 is rotatably mounted on one end of the fixed plate 641, and the intermediate shaft 642 is rotatably mounted on the other end of the fixed plate 641. The first vertical shaft 61 and the intermediate shaft 642 are both sleeved with a reverse gear 643, and the two reverse gears 643 are meshed with each other, so that the intermediate shaft 642 and the first vertical shaft 61 rotate in opposite directions at the same angular velocity; the intermediate shaft 642 and the second vertical shaft 62 are both sleeved with a third pulley 644, and a third synchronous belt 645 is sleeved 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, so that the first vertical shaft 61 and the second vertical shaft 62 rotate in opposite directions at the same angular velocity.

[0054] Reference Figure 5 , a telescopic driving member 613 is fixedly installed on the frame 1. In this embodiment, the telescopic driving member 613 is a hydraulic cylinder. One end of the telescopic driving member 613 is fixedly connected to the frame 1, and the other end of the telescopic driving member 613 is rotatably installed with a contact wheel 614. A slide groove 612 is provided on the swing rod 611 along the length direction, and the contact wheel 614 is slidably connected to the inner wall of the slide groove 612. In the perspective of the figure, when the telescopic driving member 613 is extended, the contact wheel 614 rolls in the slide 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 driving member 613 is shortened, the contact wheel 614 rolls in the slide groove 612, pushing the swing rod 611 to swing around the first vertical axis 61, driving the first vertical axis 61 to rotate counterclockwise, and the change in the rotation direction of the first vertical axis 61 is controlled by the change in the length of the telescopic driving member 613.

[0055] In a second aspect, the present invention further proposes a limiting method applicable to the above workpiece limiting device, comprising the following steps:

[0056] S1, placing the workpiece on the feeding plate 31, and pushing the workpiece from the feeding plate 31 into the conveyor belt 2, so that the workpiece moves along the transmission direction of the conveyor belt 2;

[0057] S2, start the electric drive rod 45, drive the second linkage assembly 44 to rotate, and drive the two round shafts 41 to rotate in opposite directions, and 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 the other support shaft 32 to rotate in the opposite direction through the first linkage assembly 35, and the two support shafts 32 drive the two first swing rods 34 to move closer to or away from each other, forming a guide channel for the input of the workpiece to prevent the workpiece from falling, thereby improving the stability of the workpiece input;

[0059] S4, the two circular shafts 41 drive the two clamping plates 43 to move closer to or farther from each other by driving the second swing rod 42, thereby forming a parallel channel for the output of the workpiece, effectively limiting the workpiece from being transported in the two clamping plates 43, preventing the workpiece from falling, and thus improving the stability of the output of the workpiece;

[0060] S5. In 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, and 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 the multiple workpieces on the conveyor belt 2, so that the multiple workpieces are separated and conveyed one by one in sequence, thereby improving the stability of the workpieces during the conveying process.

[0061] According to the disclosure and teaching of the above description, those skilled in the art to which the present invention belongs can also change and modify the above embodiment. Therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by those skilled in the art on the basis of the present invention belongs to the protection scope of the present invention. In addition, although some specific terms are used in this specification, these terms are only for the convenience of description and do not constitute any limitation to the present invention.

Claims

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

2. According to claim 1, a workpiece limiting device for a rail vehicle intelligent production line is characterized in that: The first linkage assembly (35) comprises a first gear (351), a first composite 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 composite wheel (352) is rotatably connected to the feed plate (31); the first gear (351) is meshed with the first composite wheel (352); the first pulley (353) is sleeved on the other support shaft (32); and a first synchronous belt (354) is sleeved between the first composite wheel (352) and the first pulley (353).

3. The workpiece limiting device for a rail vehicle intelligent production line according to claim 1 is characterized in that: The regulating assembly (36) comprises a support rod (361), a bearing block (362), a push rod (363) and a resistance spring (364); the contact plate (33) is provided with 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); and the push rod (363) is rotatably connected to one side of the bearing block (362). 3) is provided with a trigger portion (3631), the trigger portion (3631) protrudes from the side wall of the contact plate (33) and abuts against the side wall of the first rocker (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 one end of the resistance spring (364) is fixedly connected to a side of the bearing block (362) close to the push rod (363).

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

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

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

7. The workpiece limiting device for a rail vehicle intelligent production line according to claim 1 is characterized in that: The synchronous connecting rod (5) comprises a synchronous rod (51) and two rotating rods (52), wherein one of the rotating rods (52) is fixedly connected to the circumference of the support shaft (32), and the other rotating rod (52) is fixedly connected to the circumference of the circular shaft (41), and the two rotating rods (52) are rotatably connected to the two ends of the synchronous rod (51) respectively.

8. The workpiece limiting device for a rail vehicle intelligent production line according to claim 1 is characterized in that: The third linkage assembly (64) comprises 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); the intermediate shaft (642) is rotatably connected to the other end of the fixed plate (641); the first vertical shaft (61) and the intermediate shaft (642) are both sleeved with a reverse gear (643); the two reverse gears (643) are meshed with each other; the intermediate shaft (642) and the second vertical shaft (62) are both sleeved with a third pulley (644); a third synchronous belt (645) is sleeved between the two third pulleys (644).

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

10. A limiting method for a workpiece limiting device of a rail vehicle intelligent production line according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, placing a workpiece on the feed plate (31), and pushing the workpiece from the feed plate (31) into the conveyor belt (2), so that the workpiece moves along the transmission direction of the conveyor belt (2); S2, starting the electric drive rod (45), driving the second linkage assembly (44) to rotate, and driving the two circular shafts (41) to rotate in opposite directions, and the circular 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 assembly (35), and the two support shafts (32) drive the two first swing rods (34) to move closer to or farther away from each other, thereby forming a guide channel for inputting workpieces; S4, the two circular shafts (41) drive the two clamping plates (43) to move closer to or farther from each other by driving the second swing rod (42), thereby forming a parallel channel for outputting the workpiece; S5. In 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 axis (61) to rotate, and the first vertical axis (61) drives the second vertical axis (62) to rotate synchronously through the third linkage assembly (64); the separation fork (63) of the first vertical axis (61) and the separation fork (63) of the second vertical axis (62) alternately block the multiple workpieces on the conveyor belt (2), so that the multiple workpieces are separated and conveyed one by one in sequence.

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