Automatic feeding type conveying structure

Abstract

The invention discloses an automatic feeding type conveying structure which comprises a conveying table, a supporting inclined face is arranged on the conveying table, the supporting inclined face is arranged in a left-low right-high mode, a blocking rolling wheel is arranged at the leftmost end of the conveying table, and an automatic feeding unit is further arranged. The automatic feeding unit automatically conveys the single axle borne on the conveying table to the grabbing station, and after the axle on the grabbing station is grabbed and moved away, the next single axle is conveyed. The automatic feeding device is provided with the automatic feeding unit, after the axles located on the grabbing station are grabbed and moved away by grabbing equipment, the automatic feeding unit automatically conveys the single axles borne on the conveying table to the grabbing station, one axle is conveyed every time, and after the axles on the grabbing station are grabbed and moved away, the next single axle is conveyed; in the whole process, work is applied through the gravity of the axles, no electric energy is consumed, and the situation that the adjacent axles are extruded and damaged when the mechanical arm grabs materials can be effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of axle processing, and in particular to an automatic feeding type conveying structure. Background Art

[0002] Railway axles are core components that carry the train's weight and transmit power, and their safety is directly related to operational safety. Before leaving the factory, axles are inspected using magnetic particle inspection to eliminate any axles that pose safety risks.

[0003] During magnetic particle inspection of axles, the axle to be inspected is placed directly on a conveyor platform equipped with blocking rollers and supporting inclined surfaces. Both ends of the axle contact the supporting inclined surfaces and roll along the inclined surfaces until it is finally stopped by the blocking rollers at the grabbing station, stopping its movement. The axle at the grabbing station is then transferred to the inspection station by the robot. The next axle automatically rolls to a vacant grabbing station to wait for the next grab by the robot. In actual use, when the axles are arranged in rows and tightly on the conveyor table, when the robot clamps the middle of the axle at the gripping position, since the two adjacent axles (the axle at the gripping position and the axle adjacent to this axle) are close to each other, the robot's claws will open and move downward, which will squeeze the adjacent axle (that is, the axle close to the gripping station) (causing this axle to move in the opposite direction). Since the axles are placed in rows on the conveyor table, a large squeezing force is generated between the axle and the clamps, which can easily cause indentations in the middle of the axle, affecting the production quality. Therefore, this application provides an automatic feeding conveying structure to meet the needs. Summary of the Invention

[0004] The purpose of this application is to provide an automatic feeding conveying structure to solve the technical problems raised in the above background.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an automatic feeding conveying structure, comprising a conveying platform, a supporting slope is provided on the conveying platform, and the supporting slope is set to be lower on the left and higher on the right, a blocking roller is provided on the leftmost end of the conveying platform, and an automatic feeding unit is also provided. When the axle located at the grabbing station is grabbed and removed by the grabbing equipment, the automatic feeding unit will automatically transport the single axle carried on the conveying platform to the grabbing station, and after the axle on the grabbing station is grabbed and removed, the next single axle will be transported.

[0006] As a preferred implementation in this embodiment, the automatic feeding unit includes a rotating shaft rotatably arranged in the inner cavity of the conveying platform, two sets of movable plates with columns installed at the bottom, and a U-shaped plate for connecting the two sets of movable plates; The rotating shaft is fixed with a plurality of mounting rings, and the outer walls of the plurality of mounting rings are provided with a plurality of blocking rods in the form of circular axes. The rotating shaft is also fixed with a blocking ring, and the blocking ring is provided with a plurality of through holes in a circumferential shape, and the number of the through holes is the same as that of the blocking rods. A depression is provided on the left side of the supporting inclined surface, the movable plate is located in the depression, the lower end of the column slides through the conveying platform, a driving spring is sleeved on the column, and the upper and lower ends of the driving spring are fixedly connected to the conveying platform and the column respectively; A mounting plate is installed below the U-shaped plate, and a one-way gear, a transmission gear and a driving gear are respectively rotatably arranged on the mounting plate through a rotating rod. The one-way gear, the transmission gear and the driving gear are meshed and connected in sequence. A driving column that slides through the U-shaped plate is fixed to the upper end of the rotating rod corresponding to the one-way gear, and an arc-shaped groove is provided on the outer wall of the driving column. A driving slide rod adapted to the arc-shaped groove is provided on the inner wall of the through-opening of the U-shaped plate; A plurality of first contact rods are arranged in a circumferential manner on the outer wall of the rotating rod of the driving gear, a slider is slidably arranged on the right side of the driving gear, the slider is slidably arranged on the slide rail, a second contact rod adapted to the first contact rod is arranged on the slider, a positioning rod is provided on the slider, and the slider is connected to the mounting plate via a return spring; At the beginning, the weight of a single axle acts on the two sets of movable plates, and the single axle is blocked by the blocking rollers. At this time, the positioning rod is plugged into the through hole on the blocking ring.

[0007] As a preferred implementation in this embodiment, an auxiliary support unit is also provided, which can form local auxiliary support for a single axle, thereby reducing the squeezing force of the axle clamped in the gap between the two groups of blocking rods on the blocking rod.

[0008] As a preferred implementation in this embodiment, the auxiliary support unit includes a mounting bar fixedly arranged on the conveying platform, a plurality of movable blocks are arranged at equal intervals on the mounting bar, and the upper ends of the plurality of movable blocks are provided with inclined surfaces, the lower ends of the movable blocks are slidably arranged in corresponding slide grooves, the slide grooves are opened on the mounting bar, and the lower ends of the movable blocks are connected to the mounting bar through connecting springs.

[0009] As a preferred implementation in this embodiment, an adjustment unit is further provided for adjusting the length of the movable block extending out of the slide slot to change the supporting effect of the movable block on the axle.

[0010] As a preferred implementation in this embodiment, a support block is slidably provided in the slide groove, and the lower end of the support block is located below the slide groove, and the movable block and the support block are connected by a connecting spring; The inner cavity of the mounting bar is rotatably provided with a rotating shaft, and the rotating shaft is provided with multiple groups of cams with protrusions; One end of the rotating shaft passes through the mounting bar and is connected to the worm gear. A worm meshing with the worm gear is mounted on the mounting bar.

[0011] As a preferred implementation in this embodiment, a plurality of balls are circumferentially arranged on the inner wall of the through hole of the blocking ring.

[0012] As a preferred implementation in this embodiment, the positioning end of the positioning rod is configured as a conical structure, and a ball is provided on the outer end portion of the positioning end.

[0013] In summary, the technical effects and advantages of the present invention are as follows: The present invention has a reasonable structure. An automatic feeding unit is provided on the conveying platform. When the axle at the grabbing station is grabbed and removed by the grabbing device, the automatic feeding unit automatically conveys the single axle carried on the conveying platform to the grabbing station, one at a time. After the axle at the grabbing station is grabbed and removed, the next single axle is conveyed. The whole process is done by the gravity of the axle, does not consume any electric energy, and can effectively prevent the manipulator from causing squeezing damage to the adjacent axles when grabbing the material. In the present invention, an auxiliary support unit is provided to form local auxiliary support for a single axle, thereby reducing the extrusion force of the axle clamped in the gap between the two sets of blocking rods on the blocking rod and the extrusion force of the blocking ring on the positioning rod, which is conducive to driving the positioning rod out of the through hole under the elastic force of the driving spring. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 for Figure 1 Schematic diagram of the middle support inclined plane structure; Figure 3 for Figure 2 Schematic diagram of the local structure; Figure 4 for Figure 3Schematic diagram of the automatic feeding unit structure; Figure 5 for Figure 3 Schematic diagram of the middle mounting bar structure; Figure 6 for Figure 5 Schematic diagram of the partial cross-section structure of the middle mounting bar; Figure 7 for Figure 5 Schematic diagram of the cam structure.

[0016] In the figure: 1. Conveyor platform; 2. Blocking roller; 3. Support inclined plane; 4. Low-lying area; 5. Rotating shaft; 6. Mounting ring; 7. Blocking rod; 8. Blocking ring; 9. Positioning rod; 10. Slider; 11. Return spring; 12. Mounting plate; 13. Second contact rod; 14. First contact rod; 15. Driving gear; 16. Driving column; 17. One-way gear; 18. Transmission gear; 19. Arc groove; 20. Driving slide; 21. U-shaped plate; 22. Movable plate; 23. Driving spring; 24. Column; 25. Mounting strip; 26. Movable block; 27. Worm gear; 28. Worm; 29. ​​Rotating shaft; 30. Cam; 31. Inclined plane; 32. Connecting spring; 33. Support block. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Example: Reference Figure 1-2 An automatic feeding conveying structure shown includes a conveying platform 1, a supporting slope 3 is provided on the conveying platform 1, and the supporting slope 3 is set to be lower on the left and higher on the right. A blocking roller 2 is provided on the leftmost end of the conveying platform 1, and an automatic feeding unit is also provided. When the axle located at the grabbing station is grabbed and removed by the grabbing equipment, the automatic feeding unit will automatically convey the single axle carried on the conveying platform 1 to the grabbing station, and after the axle on the grabbing station is grabbed and removed, the next single axle will be conveyed.

[0019] As a preferred implementation in this embodiment, Figure 1-4 As shown, the automatic feeding unit includes a rotating shaft 5 rotatably arranged in the inner cavity of the conveying platform 1, two sets of movable plates 22 with columns 24 installed at the bottom, and a U-shaped plate 21 for connecting the two sets of movable plates 22; A plurality of mounting rings 6 are fixedly mounted on the rotating shaft 5, and a plurality of blocking rods 7 are arranged on the outer walls of the plurality of mounting rings 6 in the form of circular shafts. A blocking ring 8 is also fixedly mounted on the rotating shaft 5, and the blocking ring 8 is provided with a plurality of through holes in a circumferential manner, and the number of through holes is the same as that of the blocking rods 7; A depression 4 is provided on the left side of the supporting inclined surface 3, and a movable plate 22 is located in the depression 4. The lower end of the column 24 slides through the conveying platform 1. A driving spring 23 is sleeved on the column 24, and the upper and lower ends of the driving spring 23 are fixedly connected to the conveying platform 1 and the column 24 respectively. A mounting plate 12 is mounted below the U-shaped plate 21, and a one-way gear 17, a transmission gear 18, and a drive gear 15 are rotatably mounted on the mounting plate 12 via a rotating rod. The one-way gear 17, the transmission gear 18, and the drive gear 15 are meshed and connected in sequence. A driving column 16 that slides through the U-shaped plate 21 is fixed to the upper end of the rotating rod corresponding to the one-way gear 17. An arc-shaped groove 19 is provided on the outer wall of the driving column 16, and a driving slide rod 20 that is adapted to the arc-shaped groove 19 is provided on the inner wall of the through-opening of the U-shaped plate 21. Multiple groups of first contact rods 14 are circumferentially arranged on the outer wall of the rotating rod of the driving gear 15. A slider 10 is slidably arranged on the right side of the driving gear 15. The slider 10 is slidably arranged on a slide rail. The slider 10 is provided with a second contact rod 13 adapted to the first contact rod 14. A positioning rod 9 is provided on the slider 10. The slider 10 is connected to the mounting plate 12 via a return spring 11. At the beginning, the weight of a single axle acts on the two sets of movable plates 22, and the single axle is blocked by the blocking roller 2. At this time, the positioning rod 9 is plugged into the through hole on the blocking ring 8.

[0020] Before use, place an axle on the two movable plates 22, and connect the positioning rod 9 with the blocking ring 8 so that the shaft 5 cannot rotate. Figure 1 As shown; During operation, since there is a large gap between the axle on the movable plate 22 and the axle limited between the two sets of blocking rods 7, this gap provides a large enough space for the robot to grab. After the robot grabs the axle on the movable plate 22, when the U-shaped plate 21 moves upward and returns to its original position (when returning to its original position, the height of the U-shaped plate 21 is lower than the height of the supporting inclined surface 4), the elastic force of the driving spring 23 will cause the movable plate 22 to drive the U-shaped plate 21 to move upward, and the sliding rod 20 and the arc groove 1 will be driven to move upward. When the first gear 14 is in the forward direction and the second gear 13 is in the reverse direction, the gear 15 is in the reverse direction and the gear 16 is in the reverse direction. Finally, the positioning rod 9 is plugged into the adjacent through-hole. The previously restricted axle will move onto the movable plate 22 and be blocked by the blocking roller 2. When the axle moves onto the movable plate 22, the movable plate 22 will drive the U-shaped plate 21 downward through the gravity of the axle, which will drive the drive column 16 to rotate in the opposite direction. At this time, the one-way gear 17 does not move, that is, it does not rotate counterclockwise. The one-way gear 17 can only drive the drive gear 15 to rotate through the transmission gear 18 when it rotates clockwise. At this time, the positioning rod 9 is stably plugged into the through-hole. The conveyor platform 1 is provided with an automatic feeding unit. When the axle at the gripping station is grabbed and removed by the gripping device, the automatic feeding unit will automatically convey the single axle carried on the conveyor platform 1 to the gripping station, one at a time. After the axle at the gripping station is grabbed and removed, the next single axle will be conveyed. The whole process is done by the gravity of the axle, does not consume any electrical energy, and can effectively prevent the robot from causing squeezing damage to adjacent axles when grabbing the material.

[0021] It should be noted that the number of through holes set on the blocking ring 8 is consistent with the number of the blocking rods 7, and the through holes are located between two adjacent through holes, so that the rotating shaft 5 can allow one axle to pass through each time, and the blocking ring 8 can be set to four groups of through holes.

[0022] As a preferred implementation in this embodiment, an auxiliary support unit is also provided, which can form local auxiliary support for a single axle, thereby reducing the squeezing force of the axle clamped in the gap between the two groups of blocking rods 7 on the blocking rod 7.

[0023] On the right side of the rotating shaft 5, multiple groups of axles are arranged in a row and closely together. Due to the component force of gravity, the axles restricted between the two groups of limit rods 7 have a large extrusion pressure on the limit rod 7, and this extrusion pressure will increase as the number of axles placed on the conveyor platform 1 increases. Therefore, an auxiliary support unit is provided to reduce the extrusion pressure of the axles on the limit rod 7, and at the same time, the extrusion pressure of the blocking ring 8 on the positioning rod 9 is reduced, which is conducive to driving the positioning rod 9 out of the through hole under the elastic force of the drive spring 23.

[0024] As a preferred implementation in this embodiment, Figure 3 、 Figure 5 and Figure 6 As shown, the auxiliary support unit includes a mounting bar 25 fixedly set on the conveyor platform 1, and a plurality of movable blocks 26 are arranged on the mounting bar 25 at equal intervals, and the upper ends of the plurality of movable blocks 26 are provided with inclined surfaces 31, and the lower ends of the movable blocks 26 are slidably set in corresponding slide grooves, and the slide grooves are opened on the mounting bar 25, and the lower ends of the movable blocks 26 are connected to the mounting bar 25 through connecting springs 32.

[0025] For the axles placed in a row and closely arranged on the conveyor platform 1, each axle has a corresponding movable block 26. When the axle is placed on the conveyor platform 1, its axle will contact the inclined surface 31 of the movable block 26, which will support the axle that moves downward along the supporting inclined surface 3, reduce the resistance between the two adjacent axles, and thereby reduce the extrusion force between the axle and the limit rod 7 and between the blocking ring 8 and the positioning rod 9. When the contact is limited to the axle between the two sets of limit rods 7, this axle will move downward along the supporting inclined surface 3, and the other axles will move downward due to the component force of gravity and eventually pass over the corresponding movable block 26 (forming an extrusion on the movable block 26 and causing the movable block 26 to compress the connecting spring 32 downward) and conflict with the lower movable block 26.

[0026] As a preferred implementation in this embodiment, an adjustment unit is further provided for adjusting the length of the movable block 26 extending out of the slide slot to change the supporting effect of the movable block 26 on the axle.

[0027] The length of the movable block 26 extending out of the slide groove can be adjusted as needed to adjust the supporting effect on the axle, minimize the squeezing force between the axle and the limit rod 7 and the blocking ring 8 and the positioning rod 9 bracket, and also allow the axle to pass over the corresponding movable block 26 under the action of the component force of gravity.

[0028] As a preferred implementation in this embodiment, Figure 6 As shown, a support block 33 is slidably provided in the chute, and the lower end of the support block 33 is located below the chute, and the movable block 26 and the support block 33 are connected by a connecting spring 32; The inner cavity of the mounting bar 25 is rotatably provided with a rotating shaft 29, and the rotating shaft 29 is provided with a plurality of cams 30 with protrusions; One end of the rotating shaft 29 passes through the mounting bar 25 and is connected to the worm gear 27 . A worm 28 meshing with the worm gear 27 is mounted on the mounting bar 25 .

[0029] When in use, the worm 28 can drive the worm wheel 27 to rotate, and the rotation of the worm wheel 27 will drive the cam 30 to rotate. The raised structure of the cam 30 is as shown in FIG. Figure 7 As shown, by rotating the cam 30, the protrusion thereon continuously lifts the support block 33. The appropriate lifting height can be selected according to needs. After reaching the appropriate height, the worm 28 is stopped. At this time, the worm 28 and the worm wheel 27 are self-locked, that is, when the support block 33 squeezes the cam 30, the rotating shaft 29 cannot rotate.

[0030] As a preferred implementation in this embodiment, a plurality of balls are circumferentially arranged on the inner wall of the through hole of the blocking ring 8 .

[0031] The purpose of the ball bearing arrangement is to reduce the friction between the blocking ring 8 and the positioning rod 9, thereby facilitating the positioning rod 9 to move out of the through hole.

[0032] As a preferred implementation in this embodiment, the positioning end of the positioning rod 9 is configured as a conical structure, and a ball is provided on the outer end portion of the positioning end.

[0033] The provision of the balls reduces the friction generated when the end of the positioning rod 9 contacts the end surface of the blocking ring 8 .

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic feeding type conveying structure, comprising a conveying platform (1), wherein the conveying platform (1) is provided with a supporting inclined surface (3), and the supporting inclined surface (3) is arranged with the left side lower and the right side higher, and a blocking roller (2) is provided on the leftmost end of the conveying platform (1), characterized in that: An automatic feeding unit is also provided. When the axle at the gripping station is gripped and removed by the gripping device, the automatic feeding unit automatically conveys the single axle carried on the conveying platform (1) to the gripping station, and after the axle at the gripping station is gripped and removed, the next single axle is conveyed.

2. The automatic feeding conveying structure according to claim 1, characterized in that: The automatic feeding unit comprises a rotating shaft (5) rotatably arranged in the inner cavity of the conveying platform (1), two sets of movable plates (22) with columns (24) installed at the bottom, and a U-shaped plate (21) for connecting the two sets of movable plates (22); A plurality of mounting rings (6) are fixedly provided on the rotating shaft (5), and a plurality of blocking rods (7) are provided on the outer walls of the plurality of mounting rings (6) in the form of circular shafts. A blocking ring (8) is also fixedly provided on the rotating shaft (5), and the blocking ring (8) is provided with a plurality of through holes in the form of a circle, and the number of the through holes is the same as that of the blocking rods (7); A depression (4) is provided on the left side of the supporting inclined surface (3), the movable plate (22) is located in the depression (4), the lower end of the column (24) slides through the conveying platform (1), a driving spring (23) is sleeved on the column (24), and the upper and lower ends of the driving spring (23) are fixedly connected to the conveying platform (1) and the column (24), respectively; A mounting plate (12) is installed below the U-shaped plate (21), and a one-way gear (17), a transmission gear (18) and a driving gear (15) are respectively rotatably provided on the mounting plate (12) through a rotating rod. The one-way gear (17), the transmission gear (18) and the driving gear (15) are meshed and connected in sequence. A driving column (16) that slides through the U-shaped plate (21) is fixed to the upper end of the rotating rod corresponding to the one-way gear (17). An arc-shaped groove (19) is provided on the outer wall of the driving column (16). A driving slide rod (20) that is adapted to the arc-shaped groove (19) is provided on the inner wall of the through opening of the U-shaped plate (21). A plurality of first contact rods (14) are arranged in a circumferential manner on the outer wall of the rotating rod of the driving gear (15); a slider (10) is slidably arranged on the right side of the driving gear (15); the slider (10) is slidably arranged on a slide rail; a second contact rod (13) adapted to the first contact rod (14) is arranged on the slider (10); a positioning rod (9) is arranged on the slider (10); and the slider (10) is connected to the mounting plate (12) via a return spring (11); At the beginning, the weight of a single axle acts on the two sets of movable plates (22), and the single axle is blocked by the blocking roller (2). At this time, the positioning rod (9) is plugged into the through hole on the blocking ring (8).

3. The automatic feeding conveying structure according to claim 2, characterized in that: An auxiliary support unit is also provided, which can form local auxiliary support for a single axle, thereby reducing the squeezing force of the axle clamped in the gap between the two groups of blocking rods (7) on the blocking rod (7).

4. The automatic feeding conveying structure according to claim 3, characterized in that: The auxiliary support unit includes a mounting bar (25) fixedly arranged on the conveying platform (1), a plurality of movable blocks (26) are arranged at equal intervals on the mounting bar (25), and the upper ends of the plurality of movable blocks (26) are all provided with inclined surfaces (31), the lower ends of the movable blocks (26) are slidably arranged in corresponding slide grooves, the slide grooves are opened on the mounting bar (25), and the lower ends of the movable blocks (26) are connected to the mounting bar (25) through connecting springs (32).

5. The automatic feeding conveying structure according to claim 4, characterized in that: An adjustment unit is also provided for adjusting the length of the movable block (26) extending out of the slide slot to change the supporting effect of the movable block (26) on the axle.

6. The automatic feeding conveying structure according to claim 5, characterized in that: A support block (33) is slidably provided in the slide groove, and the lower end of the support block (33) is located below the slide groove, and the movable block (26) and the support block (33) are connected via a connecting spring (32); The inner cavity of the mounting bar (25) is rotatably provided with a rotating shaft (29), and the rotating shaft (29) is provided with a plurality of groups of cams (30) with protrusions; One end of the rotating shaft (29) passes through the mounting bar (25) and is connected to the worm gear (27); a worm (28) meshingly connected to the worm gear (27) is mounted on the mounting bar (25).

7. The automatic feeding conveying structure according to claim 2, characterized in that: A plurality of balls are arranged in a circumferential manner on the inner wall of the through hole of the blocking ring (8).

8. The automatic feeding conveying structure according to claim 2, characterized in that: The positioning end of the positioning rod (9) is configured as a conical structure, and a ball is provided on the outer end of the positioning end.

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