An automotive parts transfer and loading device

Abstract

An automobile part transfer and loading device includes a transfer trolley and a conveying rack; the transfer trolley includes a vehicle frame and a first feeding layer provided on the vehicle frame, the conveying rack includes a second feeding layer, both the first feeding layer and the second feeding layer are inclined downward along the conveying direction, the output end of the first feeding layer is docked with the input end of the second feeding layer, a first limiting mechanism is provided at the output end of the first feeding layer, and a first limit switch mechanism is provided on the conveying rack. With the above technical solution, the automobile parts are placed on the first feeding layer of the transfer trolley through a tray. After the transfer trolley is docked with the conveying rack, the first limiting mechanism automatically cancels the blocking of the output end of the first feeding layer during the docking process, so that the parts on the first feeding layer move into the second feeding layer under the action of gravity. The present invention can improve the transfer and loading efficiency and save labor.

Description

Technical Field

[0001] The present invention relates to the technical field of automotive part transfer, and more particularly to a feeding device for automotive part transfer. Background Art

[0002] In the field of automobile manufacturing, automotive parts need to be transferred between various processes. For example, brakes are relatively heavy. During the process from the end of the brake production line to being sent to another production line for assembly, transportation is required. Relying solely on manual handling is time-consuming and laborious, and the production rhythm cannot meet the actual production requirements. Summary of the Invention

[0003] The purpose of the present invention is to provide a feeding device for automotive part transfer, which achieves the purpose of semi-automatic transfer and feeding of automotive parts, saves manpower and improves production efficiency. To achieve the above purpose, the present invention adopts the following technical solutions:

[0004] A feeding device for automotive part transfer includes a transfer trolley and a conveying frame; the transfer trolley includes a frame and a first feeding layer provided on the frame, the conveying frame includes a second feeding layer, both the first feeding layer and the second feeding layer are inclined downward along the conveying direction, the output end of the first feeding layer is docked with the input end of the second feeding layer, a first limiting mechanism is provided at the output end of the first feeding layer, and a first limit switch mechanism is provided on the conveying frame; the first limiting mechanism includes a first pin shaft longitudinally arranged and capable of moving up and down relative to the frame, a first limiting portion fixedly provided at the top of the first pin shaft, a roller fixedly provided at the bottom of the first pin shaft, and a first spring that acts on the first pin shaft at the upper limit position and makes the first limiting portion block the output end of the first feeding layer. The roller extends out of the frame on the outside of the output end of the first feeding layer, and the axis of the roller is perpendicular to the side surface of the transfer trolley at the output end of the first feeding layer; the first limit switch mechanism includes a guide plate fixedly provided on the conveying frame. The guide plate is provided on the side surface of the conveying frame at the input end of the second feeding layer. The bottom of the guide plate forms a guide wall group. The guide wall group includes a centrally arranged and upwardly concave arc-shaped limiting wall and two guide walls respectively provided on both sides of the arc-shaped limiting wall and inclined outward and upward. The guide walls guide the roller and make the first pin shaft move downward against the elastic force of the first spring, thereby canceling the blocking of the first limiting portion on the first feeding layer.

[0005] Further, the first limiting mechanism further includes a first guiding cylinder fixedly arranged on the vehicle frame and a roller mounting plate fixedly arranged at the bottom of the first pin shaft. The first guiding cylinder is vertically arranged, and a first step is arranged on the inner wall of the first guiding cylinder. A first through hole is arranged at the center of the first step. The first pin shaft includes a first guiding section and a first connecting section arranged at the bottom of the first guiding section. The first pin shaft passes through the first guiding cylinder, and the outer diameter of the first guiding section matches the inner diameter of the first guiding cylinder. The first connecting section passes through the first through hole at the center of the first step. The first limiting part is arranged at the top end of the first guiding section. The roller mounting plate is arranged at the bottom end of the first connecting section. A first spring is arranged in the first guiding cylinder. The bottom end of the first spring is arranged on the first step, and the top end of the first spring abuts against the lower end surface of the first guiding section.

[0006] Further, a guiding mechanism for guiding rollers to move along a guiding wall group is arranged between the transfer trolley and the conveying rack.

[0007] Further, the guiding mechanism includes an extending plate arranged on the side surface of the vehicle frame at the output end of the first feeding layer and a side guiding assembly arranged on the side surface of the conveying rack at the input end of the second feeding layer; the side guiding assembly includes a bearing mounting plate installed on the side surface of the conveying rack and extending outwards and a plurality of bearings arranged on the bearing mounting plate. The bearings are arranged in two rows, and a guiding channel parallel to the side surface of the conveying rack at the input end of the second feeding layer and used for guiding the extending plate is formed between the two rows of bearings.

[0008] Further, the transfer trolley further includes a first empty-return layer arranged below the first feeding layer, and the conveying rack further includes a second empty-return layer arranged below the second feeding layer. The first empty-return layer and the second empty-return layer are both arranged to incline downwards along the conveying direction. The conveying directions of the first empty-return layer and the second empty-return layer are opposite to the conveying direction of the first feeding layer. The output end of the second empty-return layer is docked with the input end of the first empty-return layer. The first limiting mechanism is arranged at the output end of the second empty-return layer, and the first limiting switch mechanism is arranged on the transfer trolley.

[0009] Further, for the first limiting mechanism located at the output end of the second empty-return layer, the first pin shaft is longitudinally arranged and can move up and down relative to the conveying rack. When the first limiting part at the top of the first pin shaft is at the upper limit position, it blocks the output end of the second empty-return layer. The roller extends to the outside of the conveying rack at the output end of the second empty-return layer, and the axis of the roller is perpendicular to the side surface of the conveying rack at the output end of the second empty-return layer; for the first limiting switch mechanism located on the transfer trolley, the guiding plate is arranged on the side surface of the transfer trolley at the input end of the first empty-return layer.

[0010] Further, it further includes a lifting mechanism provided at the output end of the second feeding layer of the conveying rack. The lifting mechanism includes a lifting seat, a lifting table, a picking layer installed on the lifting table, and a lifting cylinder installed on the lifting seat. A second limiting mechanism is provided at the output end of the second feeding layer, and a second limit switch mechanism is provided at one end of the lifting mechanism connected to the conveying rack.

[0011] Further, the second limiting mechanism includes a second guiding cylinder fixedly provided at the output end of the conveying rack, a second spring provided in the second guiding cylinder, a second pin shaft longitudinally arranged and capable of moving up and down relative to the conveying rack, a linkage seat installed at the bottom of the second pin shaft, a linkage plate connected to the linkage seat, and a hinge seat for installing the linkage plate; the second guiding cylinder is vertically arranged and the inner wall of the second guiding cylinder is provided with a second step, and a second through hole is provided at the center of the second step. The second pin shaft includes a second guiding section and a second connecting section provided at the bottom of the second guiding section. The second pin shaft passes through the second guiding cylinder and the outer diameter of the second guiding section matches the inner diameter of the second guiding cylinder. The second connecting section passes through the second through hole at the center of the second step. The top end of the second guiding section forms a second limiting portion. The linkage seat is installed at the bottom end of the second connecting section. The second spring is provided in the second guiding cylinder, the bottom end of the second spring is arranged on the second step, and the top end of the second spring abuts against the lower end surface of the second guiding section. The hinge seat is fixed at the output end of the conveying rack. The middle position of the linkage plate is hinged to the hinge seat. One end of the linkage plate forms a touch end, and a connecting shaft is installed at the other end of the linkage plate. The linkage seat includes a first connecting plate and two relatively arranged second connecting plates respectively provided on both sides of the connecting plate. Long circular holes are provided on the second connecting plates. One end of the linkage plate away from the touch end is arranged between the two second connecting plates. The two ends of the connecting shaft respectively pass through the long circular holes on the two second connecting plates; the second limit switch is arranged on the lifting table, and the second limit switch includes an extension shaft provided directly below the touch end.

[0012] Further, the lifting seat includes a cylinder fixing plate. The lifting table includes a frame body and a lifting plate fixed on the frame body. The lifting cylinder includes a cylinder body and a cylinder shaft. The cylinder body is fixed at the bottom of the cylinder fixing plate, and the cylinder shaft passes through the cylinder fixing plate and is connected to the lifting plate above; the lifting mechanism further includes a lifting table guiding mechanism. The lifting table guiding mechanism includes two guiding column assemblies respectively provided on both sides of the lifting cylinder. The guiding column assembly includes a guide sleeve installed on the cylinder fixing plate and a guide post installed on the lifting plate.

[0013] Further, the material taking layer includes two oppositely arranged roller mounting plates, a plurality of rollers arranged between the roller mounting plates along the conveying direction, a stop bar arranged between the two roller mounting plates and at one end far from the conveying rack, and a rotating stop bar fixed on the top of the roller mounting plate and capable of rotating and extending into the component mounting area; hinge platforms are respectively arranged at the middle positions on both sides of the material taking layer, the two hinge platforms are mounted on the lifting platform, the roller mounting plates are hinged on the hinge platforms, an elastic shaft arranged vertically is mounted at one end of the lifting platform close to the conveying rack, and the top end of the elastic shaft supports at the bottom of the roller mounting plate to make the material taking layer incline downward and away from the conveying rack; a vertically arranged ejector rod is arranged at one end far from the conveying rack at the top of the lifting seat. When the lifting platform is at the lower limit position, the top end of the ejector rod supports at the bottom of the roller mounting plate to make the material taking layer rotate against the elasticity of the elastic shaft. After rotation, the material taking layer inclines downward and towards the conveying rack, and an avoidance hole for the ejector rod to pass through is arranged on the lifting platform corresponding to the ejector rod.

[0014] With the above technical solution, automotive components are placed on the first feeding layer of the transfer cart through pallets. After the transfer cart is docked with the conveying rack, the first limiting mechanism automatically cancels the blocking of the output end of the first feeding layer during the docking process, so that the components on the first feeding layer move into the second feeding layer under the action of gravity and are blocked by the second limiting mechanism at the output end of the second feeding layer. Then, the lifting platform of the lifting mechanism rises to dock the material taking layer thereon with the output end of the second feeding layer. The second limiting mechanism automatically cancels the blocking of the output end of the second feeding layer during the docking process, so that the components enter the material taking layer under the action of gravity. The lifting platform descends to dock with the second emptying layer, and the operator takes away the components on the material taking layer, then pushes the empty pallet into the inclined second emptying layer. The pallet moves in the emptying direction under the action of gravity and finally enters the first emptying layer of the transfer cart. Then, the transfer cart loaded with the empty pallet is moved away to pick up new components, and the output end of the second emptying layer is automatically blocked by the first limiting mechanism at this place. During the entire transfer and loading process, after the transfer cart is docked with the conveying rack, the components and the empty pallets are automatically conveyed, greatly saving manpower and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of the present invention.

[0016] Figure 2 It is a side schematic diagram of the present invention.

[0017] Figure 3 It is a schematic diagram of the transfer cart.

[0018] Figure 4 It is a schematic diagram of the conveying rack.

[0019] Figure 5Schematic diagram of the interaction between the first limiting mechanism and the first limit switch.

[0020] Figure 6 Schematic diagram of the lifting mechanism.

[0021] Figure 7 Schematic diagram of the state of the second implementation mode of the lifting mechanism Figure 1 。

[0022] Figure 8 Schematic diagram of the state of the second implementation mode of the lifting mechanism Figure 2 。 Specific implementation mode

[0023] The present invention will be described below with reference to the accompanying drawings and specific embodiments.

[0024] As Figure 1 、 2 shown, an automotive parts transfer and loading device includes a transfer trolley 1, a conveying frame 2, and a lifting mechanism 3.

[0025] The transfer trolley 1 includes a vehicle frame 4, a first feeding layer 5 provided on the vehicle frame 4, and a first empty-return layer 6 provided below the first feeding layer 5. The conveying frame 2 includes a second feeding layer 7 and a second empty-return layer 8 provided below the second feeding layer 7. The lifting mechanism 3 includes a liftable material-taking layer 9. Both the first feeding layer 5 and the second feeding layer 7 are inclined downward along the conveying direction, and the output end of the first feeding layer 5 is docked with the input end of the second feeding layer 7. Both the first empty-return layer 6 and the second empty-return layer 8 are inclined downward along the conveying direction, and the conveying directions of the first empty-return layer 6 and the second empty-return layer 8 are opposite to the conveying directions of the first feeding layer 5 and the second feeding layer 7. The output end of the second empty-return layer 8 is docked with the input end of the first empty-return layer 6. When the material-taking layer 9 rises to the top, it is docked with the output end of the second feeding layer 7. When the material-taking layer 9 descends to the bottom, it is docked with the input end of the second empty-return layer 8.

[0026] The above-mentioned first feeding layer 5, second feeding layer 7, first empty-return layer 6, second empty-return layer 8, and material-taking layer 9 all adopt the structural form of a roller conveyor line. The parts are fixed on a tray 10, and the tray 10 is conveyed on the roller conveyor line.

[0027] As Figures 2 - 6As shown in the figure, a first limiting mechanism 11 is provided at the output end of the first feeding layer 5, and a first limit switch mechanism 12 is provided on the conveying frame 2. During docking, the first limit switch mechanism 12 acts on the first limiting mechanism 11, enabling the components on the first feeding layer 5 to enter the second feeding layer 7. A first limiting mechanism 11 is also provided at the output end of the second empty-return layer 8. Correspondingly, a first limit switch mechanism 12 is provided on the transfer trolley 1. A second limiting mechanism 13 is provided at the output end of the second feeding layer 7, and a second limit switch mechanism 14 is provided on the lifting mechanism 3. When the material-taking layer 9 is docked with the second feeding layer 7, the second limit switch mechanism 14 acts on the second limiting mechanism 13, enabling the components on the second feeding layer 7 to enter the material-taking layer 9.

[0028] The structure will be described in detail below:

[0029] As Figures 3 - 5 shown, at the docking position of the first feeding layer 5 and the second feeding layer 7, the first limiting mechanism 11 includes a first pin shaft 15 arranged longitudinally and capable of moving up and down relative to the vehicle frame 4, a first limiting portion fixed to the top of the first pin shaft 15, a first spring 16 that acts on the first pin shaft 15 at the upper limit position and enables the first limiting portion to block the output end of the first feeding layer 5, a first guide cylinder 17 fixed to the vehicle frame 4, a roller mounting plate 18 fixed to the bottom of the first pin shaft 15, and a roller 19 mounted on the roller mounting plate 18. The first guide cylinder 17 is vertically arranged, and the inner wall of the first guide cylinder 17 is provided with a first step 20. A first through hole is provided at the center of the first step 20. The first pin shaft 15 includes a first guiding section 21 and a first connecting section 22 provided at the bottom of the first guiding section 21. The first pin shaft 15 passes through the first guide cylinder 17, and the outer diameter of the first guiding section 21 matches the inner diameter of the inner wall of the first guide cylinder 17. The first connecting section 22 passes through the first through hole at the center of the first step 20. The top end of the first guiding section 21 is provided with a first limiting portion. Here, the first limiting portion is preferably a baffle 23. The roller mounting plate 18 is arranged at the bottom end of the first connecting section 22. The first spring 16 is arranged inside the first guide cylinder 17. The bottom end of the first spring 16 is arranged on the first step 20, and the top end of the first spring 16 abuts against the lower end surface of the first guiding section 21. The roller 19 extends to the outside of the vehicle frame 4 at the output end of the first feeding layer 5, and the axis of the roller 19 is perpendicular to the side surface of the transfer trolley 1 at the output end of the first feeding layer 5. The first limit switch mechanism 12 includes a guide plate 24 fixed to the conveying frame 2. The guide plate 24 is arranged on the side surface of the conveying frame 2 at the input end of the second feeding layer 7. The bottom of the guide plate 24 forms a guide wall group. The guide wall group includes an arc-shaped limiting wall 25 arranged in the middle and concave upward, and two guide walls 26 respectively arranged on both sides of the arc-shaped limiting wall 25 and inclined outward and upward. The guide walls 26 guide the roller 19 and enable the first pin shaft 15 to move downward against the elastic force of the first spring 16, thereby canceling the blocking of the first feeding layer 5 by the baffle.

[0030] The interaction principle between the above-mentioned first limiting mechanism 11 and the first limit switch mechanism 12 is as follows:

[0031] When the operator docks the transfer trolley 1 laterally at the input end of the second feeding layer 7, the roller 19 moves along the inclined guiding wall 26. At this time, the roller 19 drives the first pin 15 to move downward against the elastic force of the first spring 16. When the roller 19 is caught in the arc-shaped limiting wall 25, the baffle 23 at the top of the first pin 15 completely leaves the output end of the first feeding layer 5 and cancels the blocking of the tray 10 on the first feeding layer 5. The components on the first feeding layer 5 enter the second feeding layer of the conveying rack 2 under the action of gravity.

[0032] In order to accurately dock the transfer trolley 1 with the conveying rack 2, a guiding mechanism 27 for the guiding roller 19 to move along the guiding wall group is provided between the transfer trolley 1 and the conveying rack 2.

[0033] The guiding mechanism 27 includes an extending plate 28 provided on the side of the vehicle frame 4 at the output end of the first feeding layer 5 and a side guiding assembly provided on the side of the conveying rack 2 at the input end of the second feeding layer 7; the side guiding assembly includes a bearing mounting plate 29 installed on the side of the conveying rack 2 and extending outward and a number of bearings 30 provided on the bearing mounting plate 29. The bearings 30 are arranged in two rows, and a guiding channel 31 parallel to the side of the conveying rack 2 at the input end of the second feeding layer 7 and used for guiding the extending plate 28 is formed between the two rows of bearings 30.

[0034] Similarly, a first limiting mechanism 11 is provided at the output end of the second empty return layer 8 to block the empty tray 10 on the second empty return layer 8 from moving out of the output end, and a first limit switch mechanism 12 is provided on the transfer trolley 1. After the transfer trolley 1 is docked with the conveying rack 2, not only the first limit switch mechanism 12 of the first feeding layer 5 is opened, but also the first limiting mechanism 11 of the second empty return layer 8 is opened.

[0035] Specifically, for the first limiting mechanism 11 at the output end of the second empty return layer 8, the first pin 15 is longitudinally arranged and can move up and down relative to the conveying rack 2. The first limiting portion at the top of the first pin 15 blocks the output end of the second empty return layer 8 in the upper limit position. The roller 19 extends to the outside of the conveying rack 2 at the output end of the second empty return layer 8, and the axis of the roller 19 is perpendicular to the side of the conveying rack 2 at the output end of the second empty return layer 8. For the first limit switch mechanism 12 on the transfer trolley 1, the guiding plate 24 is provided on the side of the transfer trolley 1 at the input end of the first empty return layer 6.

[0036] Such as Figure 1 、 6As shown, the lifting mechanism 3 includes a lifting seat 32, a lifting platform 33, a material taking layer 9 installed on the lifting platform 33, a lifting cylinder 34 installed on the lifting seat 32, and a lifting platform guiding mechanism for guiding the lifting platform 33. The output end of the second feeding layer 7 is provided with a second limit mechanism 13, and the end of the lifting mechanism 3 that is connected to the conveying frame 2 is provided with a second limit switch mechanism 14.

[0037] The lifting seat 32 includes a cylinder fixing plate 36, the lifting platform 33 includes a frame 38 and a lifting plate 37 fixed on the frame 38, and the lifting cylinder 34 includes a cylinder body and a cylinder shaft. The cylinder body is fixed at the bottom of the cylinder fixing plate 36, and the cylinder shaft passes through the cylinder fixing plate 36 and is connected to the upper lifting plate 37. The lifting platform guide mechanism includes two guide column assemblies respectively arranged on both sides of the lifting cylinder 34, and the guide column assembly includes a guide sleeve 39 installed on the cylinder fixing plate 36 and a guide column 40 installed on the lifting plate 37.

[0038] The second limiting mechanism 13 includes a second guide cylinder 41 fixedly arranged at the output end of the conveying frame 2, a second spring arranged in the second guide cylinder 41, a second pin shaft 42 arranged longitudinally and capable of moving up and down relative to the conveying frame 2, a linkage seat 43 installed at the bottom of the second pin shaft 42, a linkage plate 44 connected to the linkage seat 43, and a hinge seat 45 for installing the linkage plate 44; the second guide cylinder 41 is vertically arranged and the inner wall of the second guide cylinder 41 is provided with a second step, and the center of the second step is provided with a second through hole, the second pin shaft 42 includes a second guide section and a second connecting section arranged at the bottom of the second guide section, the second pin shaft 42 passes through the second guide cylinder 41 and the outer diameter of the second guide section matches the inner wall diameter of the second guide cylinder 41, the second connecting section passes through the second through hole in the center of the second step, the top of the second guide section forms a second limiting portion, and the linkage seat 43 is installed at At the bottom end of the second connecting section, the second spring is arranged in the second guide cylinder 41, the bottom end of the second spring is arranged on the second step, the top end of the second spring is against the lower end surface of the second guide section, the hinge seat 45 is fixed at the output end of the conveying frame 2, the middle position of the linkage plate 44 is hinged to the hinge seat 45, one end of the linkage plate 44 forms a touch end 46, and the other end of the linkage plate 44 is installed with a connecting shaft 47, the linkage seat 43 includes a first connecting plate and two oppositely arranged second connecting plates respectively arranged on both sides of the connecting plate, the second connecting plate is provided with an oblong hole 48, the end of the linkage plate 44 away from the touch end 46 is arranged between the two second connecting plates, and the two ends of the connecting shaft 47 respectively pass through the oblong holes 48 on the two second connecting plates; the second limit switch mechanism 14 is arranged on the lifting platform 33, and the second limit switch includes an extension shaft arranged directly below the touch end 46.

[0039] The material taking layer 9 includes two oppositely arranged roller mounting plates 49, a plurality of rollers 50 arranged between the roller mounting plates 49 along the conveying direction, a stop bar 51 arranged between the two roller mounting plates 49 and located at one end far from the conveying rack 2, and a rotating stop bar fixed on the top of the roller mounting plate 49 and capable of extending into the component mounting area by rotation. When the tray 10 loaded with components enters the material taking layer 9, the rotating stop bar is screwed in, and the front and back of the tray 10 are blocked by the rotating stop bar and the stop bar 51 respectively. At the same time, the rotating stop bar also prevents the tray 10 from moving upward. Therefore, it is convenient for the operator to unload the components on the tray 10.

[0040] The working principle of the lifting mechanism 3 is as follows:

[0041] The tray 10 fixed with components at the output end of the second feeding layer 7 is blocked by the second limiting mechanism 13. When the lifting platform 33 rises and makes the material taking layer 9 dock with the second feeding layer 7, the extension shaft on the lifting platform 33 acts on the touch end 46 of the linkage plate 44, causing the touch end 46 to tilt upward. Then, the other end of the linkage plate 44 moves downward, driving the linkage seat 43 to move downward. The linkage seat 43 drives the second pin shaft 42 to move downward against the elastic force of the second spring. The top end of the second pin shaft 42 leaves the output end of the second feeding layer 7, and the tray 10 then enters the material taking layer 9. Then, the rotating stop bar is screwed in. The lifting platform 33 moves downward and makes the material taking layer 9 dock with the second empty return layer 8. Then, the operator unloads the components, unscrews the rotating stop bar, and pushes the empty tray 10 into the second empty return layer 8.

[0042] The above is the first implementation manner of the lifting mechanism 3. The following introduces the second implementation manner of the lifting mechanism 3:

[0043] As Figure 7 、 8 shown, the same as the foregoing embodiment, the lifting mechanism 3 includes a lifting seat 32, a lifting platform 33, a material taking layer 9 installed on the lifting platform 33, a lifting cylinder 34 installed on the lifting seat 32, and a lifting platform guiding mechanism for guiding the lifting platform 33. A second limiting mechanism 13 is provided at the output end of the second feeding layer 7, and a second limit switch mechanism 14 is provided at one end of the lifting mechanism 3 docked with the conveying rack 2. The material taking layer 9 includes two oppositely arranged roller mounting plates 49, a plurality of rollers 50 arranged between the roller mounting plates 49 along the conveying direction, a stop bar 51 arranged between the two roller mounting plates 49 and located at one end far from the conveying rack 2, and a rotating stop bar 70 fixed on the top of the roller mounting plate 49 and capable of extending into the component mounting area by rotation.

[0044] On the basis of the foregoing embodiment, the improvement lies in the installation manner of the material taking layer 9 on the lifting platform 33. It is installed on the lifting platform 33 in a hinged manner, specifically as follows:

[0045] On both sides of the material taking layer 9, hinge platforms 52 are respectively arranged at the middle positions. The two hinge platforms 52 are installed on the lifting platform 33. The roller mounting plate 49 is hinged on the hinge platform 52. At one end of the lifting platform 33 close to the conveying rack 2, a vertically arranged elastic shaft 53 is installed. The top end of the elastic shaft 53 supports at the bottom of the roller mounting plate 49 and makes the material taking layer 9 incline downward towards the end away from the conveying rack 2. At one end of the top of the lifting seat 32 away from the conveying rack 2, a vertically arranged ejector rod 54 is provided. When the lifting platform 33 is at the lower limit position, the top end of the ejector rod 54 supports at the bottom of the roller mounting plate 49 and makes the material taking layer 9 rotate against the elasticity of the elastic shaft 53. After rotation, the material taking layer 9 inclines downward towards the end close to the conveying rack 2. An avoidance hole for the ejector rod 54 to pass through is provided on the lifting platform 33 corresponding to the ejector rod 54.

[0046] Adopting the above second implementation manner, when the material taking layer 9 rises to be docked with the second feeding layer 7, at this time, under the action of the elastic shaft 53, the inclination direction of the material taking layer 9 is the same as that of the second feeding layer 7, and the tray 10 can enter the material taking layer 9 more smoothly under the action of gravity. When the material taking layer 9 descends to be docked with the second empty-return layer 8, under the action of the ejector rod 54, the material taking layer 9 rotates against the elasticity of the elastic shaft 53, so that the inclination direction of the material taking layer 9 is the same as that of the second empty-return layer 8, facilitating the empty tray 10 to be pushed into the second empty-return layer 8 more smoothly.

[0047] As a preferred solution, as Figure 3 shown, two rows of first feeding layers 5 and first empty-return layers 6 can be arranged in parallel on the transfer trolley 1. After the operator finishes processing the parts and trays 10 in the first row, the transfer trolley 1 is directly towed by the tractor to move along the guiding direction of the guiding mechanism 27, and continues to be docked with the first feeding layer 5 and the first empty-return layer 6 in the second row, which can effectively improve the transfer efficiency.

[0048] In summary, adopting the above technical solution, automotive parts are placed on the first feeding layer 5 of the transfer trolley 1 through the pallet 10. After the transfer trolley 1 is docked with the conveying rack 2, the first limiting mechanism 11 automatically cancels the blocking of the output end of the first feeding layer 5 during the docking process, so that the parts on the first feeding layer 5 move into the second feeding layer 7 under the action of gravity and are blocked by the second limiting mechanism 13 at the output end of the second feeding layer 7. Then, the lifting platform 33 of the lifting mechanism 3 rises and makes the picking layer 9 thereon dock with the output end of the second feeding layer 7. The second limiting mechanism 13 automatically cancels the blocking of the output end of the second feeding layer 7 during the docking process, so that the parts enter the picking layer 9 under the action of gravity. The lifting platform 33 descends and docks with the second empty-return layer 8. The operator takes away the parts on the picking layer 9, then pushes the empty pallet 10 into the inclined second empty-return layer 8. The pallet 10 moves in the empty-return direction under the action of gravity and finally enters the first empty-return layer 6 of the transfer trolley 1. Then, the transfer trolley 1 loaded with the empty pallet 10 is moved away to pick up new parts, and the output end of the second empty-return layer 8 is automatically blocked by the first limiting mechanism 11 at this place. During the entire transfer and loading process, after the transfer trolley 1 is docked with the conveying rack 2, the parts and the empty pallet 10 are automatically conveyed, greatly saving manpower and improving production efficiency.

[0049] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes, combinations and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the scope of the claims of the present invention.

Claims

1. An automotive part transfer and loading device, characterized in that: It includes a transfer trolley and a conveying rack; the transfer trolley includes a vehicle frame and a first feeding layer provided on the vehicle frame, the conveying rack includes a second feeding layer, both the first feeding layer and the second feeding layer are inclined downward along the conveying direction, the output end of the first feeding layer is docked with the input end of the second feeding layer, a first limiting mechanism is provided at the output end of the first feeding layer, and a first limit switch mechanism is provided on the conveying rack; The first limiting mechanism includes a first pin shaft arranged longitudinally and capable of moving up and down relative to the vehicle frame, a first limiting portion fixed to the top of the first pin shaft, a roller fixed to the bottom of the first pin shaft, and a first spring that acts on the first pin shaft at the upper limit position and enables the first limiting portion to block the output end of the first feeding layer. The roller extends to the outside of the vehicle frame at the output end of the first feeding layer, and the axis of the roller is perpendicular to the side surface of the transfer trolley at the output end of the first feeding layer; The first limit switch mechanism includes a guide plate fixed to the conveying rack. The guide plate is arranged on the side surface of the conveying rack at the input end of the second feeding layer. The bottom of the guide plate forms a guide wall group. The guide wall group includes an arc-shaped limiting wall arranged in the middle and concave upward, and two guide walls respectively arranged on both sides of the arc-shaped limiting wall and inclined outward and upward. The guide walls guide the roller and enable the first pin shaft to move downward against the elastic force of the first spring, so that the first limiting portion cancels the blocking of the first feeding layer; The first limiting mechanism further includes a first guide cylinder fixed to the vehicle frame and a roller mounting plate fixed to the bottom of the first pin shaft. The first guide cylinder is arranged vertically, and the inner wall of the first guide cylinder is provided with a first step. A first through hole is provided at the center of the first step. The first pin shaft includes a first guiding section and a first connecting section provided at the bottom of the first guiding section. The first pin shaft passes through the first guide cylinder, and the outer diameter of the first guiding section matches the inner diameter of the first guide cylinder. The first connecting section passes through the first through hole at the center of the first step. The first limiting portion is provided at the top end of the first guiding section. The roller mounting plate is arranged at the bottom end of the first connecting section. The first spring is arranged in the first guide cylinder. The bottom end of the first spring is arranged on the first step, and the top end of the first spring abuts against the lower end surface of the first guiding section; A guiding mechanism is provided between the transfer trolley and the conveying rack; the guiding mechanism includes a protruding plate arranged on the side surface of the vehicle frame at the output end of the first feeding layer and a side guiding component arranged on the side surface of the conveying rack at the input end of the second feeding layer; the side guiding component includes a bearing mounting plate installed on the side surface of the conveying rack and protruding outward and a plurality of bearings arranged on the bearing mounting plate. The bearings are arranged in two rows, and a guiding channel parallel to the side surface of the conveying rack at the input end of the second feeding layer and used for guiding the protruding plate is formed between the two rows of bearings.

2. The automotive part transfer and loading device according to claim 1, characterized in that: The transfer trolley further includes a first empty-return layer disposed below the first feeding layer. The conveying rack further includes a second empty-return layer disposed below the second feeding layer. Both the first empty-return layer and the second empty-return layer are inclined downward along the conveying direction. The conveying directions of the first empty-return layer and the second empty-return layer are opposite to that of the first feeding layer. The output end of the second empty-return layer is docked with the input end of the first empty-return layer. The first limiting mechanism is provided at the output end of the second empty-return layer, and the first limit switch mechanism is provided on the transfer trolley.

3. The automotive part transfer and loading device according to claim 2, characterized in that: The first limiting mechanism at the output end of the second empty-return layer has its first pin shaft longitudinally arranged and capable of moving up and down relative to the conveying rack. When the first limiting portion at the top of the first pin shaft is in the upper limit position, it blocks the output end of the second empty-return layer. The roller extends to the outside of the conveying rack at the output end of the second empty-return layer, and the axis of the roller is perpendicular to the side surface of the conveying rack at the output end of the second empty-return layer. The first limit switch mechanism on the transfer trolley has its guide plate provided on the side surface of the transfer trolley at the input end of the first empty-return layer.

4. The automotive part transfer and loading device according to claim 2, characterized in that: It further includes a lifting mechanism provided at the output end of the second feeding layer of the conveying rack. The lifting mechanism includes a lifting seat, a lifting table, a material-taking layer installed on the lifting table, and a lifting cylinder installed on the lifting seat. The second limiting mechanism is provided at the output end of the second feeding layer, and the second limit switch mechanism is provided at one end of the lifting mechanism docked with the conveying rack.

5. The automotive part transfer and loading device according to claim 4, characterized in that: The second limiting mechanism includes a second guide cylinder fixed at the output end of the conveying rack, a second spring provided in the second guide cylinder, a second pin shaft longitudinally arranged and capable of moving up and down relative to the conveying rack, a linkage seat installed at the bottom of the second pin shaft, a linkage plate connected to the linkage seat, and a hinge seat for installing the linkage plate. The second guide cylinder is vertically arranged, and the inner wall of the second guide cylinder is provided with a second step. A second through hole is provided at the center of the second step. The second pin shaft includes a second guiding section and a second connecting section provided at the bottom of the second guiding section. The second pin shaft passes through the second guide cylinder, and the outer diameter of the second guiding section matches the inner diameter of the second guide cylinder. The second connecting section passes through the second through hole at the center of the second step. The top end of the second guiding section forms a second limiting portion. The linkage seat is installed at the bottom end of the second connecting section. The second spring is provided in the second guide cylinder. The bottom end of the second spring is set on the second step, and the top end of the second spring abuts against the lower end face of the second guiding section. The hinge seat is fixed at the output end of the conveying rack. The middle position of the linkage plate is hinged to the hinge seat. One end of the linkage plate forms a touch end, and a connecting shaft is installed at the other end of the linkage plate. The linkage seat includes a first connecting plate and two relatively arranged second connecting plates respectively provided on both sides of the connecting plate. Long circular holes are provided on the second connecting plates. One end of the linkage plate away from the touch end is arranged between the two second connecting plates. The two ends of the connecting shaft respectively pass through the long circular holes on the two second connecting plates. The second limit switch is arranged on the lifting table. The second limit switch includes an extension shaft provided directly below the touch end.

6. The automotive part transfer and loading device according to claim 4, characterized in that: The lifting seat includes a cylinder fixing plate. The lifting table includes a frame body and a lifting plate fixed on the frame body. The lifting cylinder includes a cylinder body and a cylinder shaft. The cylinder body is fixed at the bottom of the cylinder fixing plate, and the cylinder shaft passes through the cylinder fixing plate and is connected to the lifting plate above. The lifting mechanism further includes a lifting table guiding mechanism. The lifting table guiding mechanism includes two guiding column assemblies respectively arranged on both sides of the lifting cylinder. The guiding column assembly includes a guide sleeve installed on the cylinder fixing plate and a guide post installed on the lifting plate.

7. The automotive part transfer and loading device according to claim 4, characterized in that: The material taking layer includes two oppositely arranged roller mounting plates, a plurality of rollers arranged between the roller mounting plates along the conveying direction, a stop bar arranged between the two roller mounting plates and located at one end far from the conveying rack, and a rotating stop bar fixed on the top of the roller mounting plate and capable of rotating and extending into the component installation area. Hinge platforms are respectively arranged at the middle positions on both sides of the material taking layer. The two hinge platforms are installed on the lifting table, and the roller mounting plates are hinged on the hinge platforms. A vertically arranged elastic shaft is installed at one end of the lifting table close to the conveying rack. The top end of the elastic shaft supports at the bottom of the roller mounting plate and makes the material taking layer incline downward and away from one end of the conveying rack. A vertically arranged ejector rod is arranged at one end of the top of the lifting seat far from the conveying rack. When the lifting table is at the lower limit position, the top end of the ejector rod supports at the bottom of the roller mounting plate and makes the material taking layer rotate against the elasticity of the elastic shaft. After rotation, the material taking layer inclines downward and toward one end of the conveying rack. An avoidance hole for the ejector rod to pass through is arranged on the lifting table corresponding to the ejector rod.

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