A loading and unloading device for automobile parts transport rack

Abstract

The present invention relates to the technical field related to automobile parts processing, and specifically to a loading and unloading device for an automobile parts transport rack, the loading and unloading device for an automobile parts transport rack comprising a rack body, a first-layer parts placement portion, a second-layer parts placement portion and a third-layer parts placement portion; by providing an loading and unloading device for an automobile parts transport rack composed of a rack body, a first-layer parts placement portion, a second-layer parts placement portion and a third-layer parts placement portion, and by arranging the first-layer parts placement portion, the second-layer parts placement portion and the third-layer parts placement portion to be composed of a roller support, a front roller, a rear roller, a middle roller, a conveyor belt and a parts positioning mechanism, the first-layer parts placement portion, the second-layer parts placement portion and the third-layer parts placement portion drive the rod-shaped parts to be circulated through the first-layer parts placement portion, the second-layer parts placement portion and the third-layer parts placement portion, so that the staff can easily place the rod-shaped parts at the center position on the transport rack, and can also easily take out the rod-shaped parts at the center position.

Description

Technical Field

[0001] The present invention relates to the technical field related to automobile parts processing, in particular to a loading and unloading device for an automobile parts transport rack. Background Art

[0002] Auto parts are the various units that make up the entire car and the products that serve the car;

[0003] There are many types of auto parts, and they are usually transported on transport racks during turnover. However, traditional turnover racks are usually simple cart structures, and the stability of the rod-shaped parts placed on them is poor, which makes it easy for parts to collide with each other.

[0004] The existing method to avoid collisions of rod-shaped parts during transportation is usually to set up placement slots on the transport rack. However, this method will make it difficult to take and place parts located on the inner side of the transport rack. Therefore, the present invention proposes a loading and unloading device for an automobile parts transport rack to solve the above problem. Summary of the Invention

[0005] The object of the present invention is to provide a loading and unloading device for an automobile parts transport rack to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a loading and unloading device for an automobile parts transport rack, the loading and unloading device for an automobile parts transport rack comprising:

[0007] The material rack body has a roller structure rotatably installed at the bottom of the material rack body, and the columns of the material rack body are welded and positioned in sequence from bottom to top with a first-level positioning beam, a second-level positioning beam and a third-level positioning beam;

[0008] A first-level parts placement portion, wherein the first-level parts placement portion is fixedly mounted on the first-level positioning beam;

[0009] A second-layer parts placement portion, the second-layer parts placement portion is fixedly installed on the secondary positioning beam;

[0010] A three-layer parts placement portion, wherein the three-layer parts placement portion is fixedly mounted on a three-level positioning beam;

[0011] The first-layer part placement part, the second-layer part placement part, and the third-layer part placement part are all composed of a roller support, a front roller, a rear roller, a middle roller, a conveyor belt, and a part positioning mechanism. The front roller, the rear roller, and the middle roller are all rotatably mounted on the roller support. Edge pulleys are fixedly mounted at both ends of the front roller and the rear roller, and middle pulleys are fixedly mounted at both ends of the middle roller. The conveyor belt is driven by the edge pulleys and the middle pulley. The part positioning mechanism is fixedly mounted on the conveyor belt, and the part positioning mechanism is evenly arranged on the conveyor belt for a circle, and the rod-shaped parts to be circulated are positioned by the part positioning mechanism.

[0012] The part positioning mechanism is composed of a lower seat, an upper seat and a rotating shaft;

[0013] The front end of the roller bracket is fixedly mounted with a cover opening lever via a first-level positioning seat, and the rear end of the roller bracket is fixedly mounted with a cover closing assembly via a second-level positioning seat;

[0014] The rear roller is driven by a driving motor, which is a servo motor. The driving motor is connected to a power cord, and the end of the power cord is connected to a plug.

[0015] Preferably, the bottom of the lower seat body is integrally formed with a base plate, and the base plate is fixedly mounted on the conveyor belt, the upper seat body is hingedly connected to the lower seat body through a rotating shaft, a torsion spring is mounted on the rotating shaft, and the two pins of the torsion spring are respectively fixedly connected to the side walls of the lower seat body and the upper seat body, and when the torsion spring is in a reset state, the upper seat body and the lower seat body are arranged in a flush and unfolded state.

[0016] Preferably, a movable groove is provided on the end of the lower seat body away from the rotating shaft, a guide rod groove is provided at the bottom of the movable groove, the guide rod groove passes through, and a seat groove is provided on the upper side of the guide rod groove, and a docking groove is provided on the side of the seat groove, a docking seat is fixedly welded on the end of the upper seat body away from the rotating shaft, a latching tooth is integrally formed on the side of the docking seat, and a locking assembly is installed in the movable groove.

[0017] Preferably, the engaging assembly is composed of a guide rod, a movable rod, a top, a return spring and a socket. The guide rod, the movable rod and the top are integrally formed, and the guide rod is movably arranged in the guide rod groove, the movable rod is movably arranged in the movable groove, the return spring is sleeved on the guide rod, the socket is fixedly welded to the side wall of the guide rod, and the socket is movably arranged in the socket groove, and the width of the socket groove is greater than the width of the socket, and when the return spring is in the reset state, the socket is close to the side of the socket groove at one end of the top, and a tooth groove is provided on the side of the socket close to the top end.

[0018] Preferably, the cross-section of the latch is a right triangle, the size of the docking seat matches the size of the docking groove, and when the docking seat is embedded in the docking groove, its latch is embedded in the latch groove on the docking seat, and at this time, the inclined surface of the latch is facing the direction of the lower seat body.

[0019] Preferably, the plug is a convex block structure with a right-angled trapezoidal cross-section, and the plug is arranged flush with the cover-opening lever, and when the conveyor belt moves, the part positioning mechanism located on the upper side of the conveyor belt moves from the front end of the roller bracket to the rear end of the roller bracket, and at this time, the inclined surface of the plug moves toward the cover-opening lever, and the cover-opening lever interferes with the plug, and when the cover-opening lever abuts against the outer end face of the plug, its card seat is forced to move inward, and at this time, the card tooth withdraws from the card tooth groove.

[0020] Preferably, the cover closing assembly on the secondary positioning seat is composed of a first-level telescopic electric cylinder, a second-level telescopic electric cylinder, a third-level telescopic electric cylinder, a first-level cover closing lever, a second-level cover closing lever and a third-level cover closing lever. The first-level telescopic electric cylinder, the second-level telescopic electric cylinder and the third-level telescopic electric cylinder are all fixedly installed on the secondary positioning seat. The first-level cover closing lever, the second-level cover closing lever and the third-level cover closing lever are respectively fixedly connected to the telescopic rods of the first-level telescopic electric cylinder, the second-level telescopic electric cylinder and the third-level telescopic cylinder, and the setting heights of the first-level cover closing lever, the second-level cover closing lever and the third-level cover closing lever tend to increase successively.

[0021] Preferably, when the upper and lower seat bodies are in a flush and unfolded state, the port of the first-level closing lever is lower than the port of the upper seat body, and when the upper and lower seat bodies are in a closed state, the lower side of the third-level closing lever is arranged flush with the upper side of the upper seat body, the first-level telescopic electric cylinder, the second-level telescopic electric cylinder, the third-level telescopic electric cylinder, and the drive motor are all electrically connected to the PLC control module on the device, and a stopper is fixedly welded at the port position on the outer side of the inner cavity of the lower seat body, and the spacing value between the stops on both sides is consistent with the length value of the rod-shaped part.

[0022] Preferably, meshing teeth are integrally formed on the wheel surface of the edge pulley, and a meshing tooth groove is provided on the inner side surface of the conveyor belt, and the meshing tooth groove is arranged corresponding to the meshing teeth on the conveyor belt, and when the conveyor belt is actually installed, its meshing teeth are embedded in the meshing tooth groove.

[0023] Preferably, the front ends of the first-layer parts placement portion, the second-layer parts placement portion, and the third-layer parts placement portion are arranged in a stepped manner.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. A loading and unloading device for an automobile parts transport rack is provided, which is composed of a rack body, a first-layer parts placement section, a second-layer parts placement section, and a third-layer parts placement section. The first-layer parts placement section, the second-layer parts placement section, and the third-layer parts placement section are each configured to be composed of a roller support, a front roller, a rear roller, a middle roller, a conveyor belt, and a parts positioning mechanism. Thus, the first-layer parts placement section, the second-layer parts placement section, and the third-layer parts placement section drive the rod-shaped parts to be circulated, allowing workers to easily place the rod-shaped parts at the center of the transport rack and also to easily remove the rod-shaped parts at the center.

[0026] 2. The part positioning mechanism is configured to be composed of a lower base body, an upper base body and a rotating shaft, and a movable groove, a guide rod groove, a card seat groove and a docking groove are provided on the lower base body, and a clamping assembly composed of a guide rod, a movable rod, a head, a return spring and a card seat is installed in the movable groove, and a card tooth groove is provided on the card seat, and a card tooth is provided on the docking seat of the upper base body, thereby forming a lock to form a stable positioning of the rod-shaped parts, and the upper base body is automatically unfolded through the force of the relative movement of the cover opening lever and the head and the force of the torsion spring, thereby facilitating the staff to take out the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the parts placement portion of the first layer of the present invention;

[0029] Figure 3 for Figure 2 A schematic diagram of the structure at center A;

[0030] Figure 4 This is a schematic diagram of the roller support structure of the present invention;

[0031] Figure 5 Schematic diagram of the edge pulley structure;

[0032] Figure 6 This is a schematic diagram of the installation position of the locking assembly of the present invention;

[0033] Figure 7 This is a schematic diagram of the expansion of the locking assembly of the present invention;

[0034] Figure 8 This is a schematic diagram of the lower seat structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the structure of the locking assembly of the present invention;

[0036] Figure 10 This is a schematic diagram of the first closing process of the cover closing assembly;

[0037] Figure 11 This is a schematic diagram of the second closing process of the cover closing assembly;

[0038] Figure 12 This is a schematic diagram of the third closing process of the cover closing assembly;

[0039] Figure 13 This is a schematic diagram of the fourth closing process of the cover closing assembly.

[0040] In the figure: the material rack body 1, the first layer parts placement part 2, the second layer parts placement part 3, the third layer parts placement part 4, the roller support 5, the front roller 6, the rear roller 7, the middle roller 8, the conveyor belt 9, the parts positioning mechanism 10, the first level positioning seat 11, the cover opening lever 12, the second level positioning seat 13, the first level telescopic electric cylinder 14, the second level telescopic electric cylinder 15, the third level telescopic electric cylinder 16, the first level cover closing lever 17, the second level cover closing lever 18, the third level cover closing lever Rod 19, rod-shaped part 20, edge pulley 21, middle pulley 22, meshing teeth 23, lower base 24, upper base 25, rotating shaft 26, torsion spring 27, bottom plate 28, movable groove 29, guide rod groove 30, base groove 31, docking groove 32, engaging assembly 33, docking base 34, latching teeth 35, guide rod 36, movable rod 37, top head 38, return spring 39, base 40, latching tooth groove 41, stopper 42, roller structure 43. DETAILED DESCRIPTION

[0041] 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.

[0042] See also Figure 1-13 , the present invention provides the following five preferred embodiments:

[0043] Example 1

[0044] A loading and unloading device for an automobile parts transport rack, comprising a rack body 1, a first-layer parts placement portion 2, a second-layer parts placement portion 3, and a third-layer parts placement portion 4. A roller structure 43 is rotatably mounted on the bottom of the rack body 1, and a first-level positioning beam, a second-level positioning beam, and a third-level positioning beam are welded and positioned on the columns of the rack body 1 in sequence from bottom to top. The first-layer parts placement portion 2 is fixedly mounted on the first-level positioning beam, the second-layer parts placement portion 3 is fixedly mounted on the second-level positioning beam, and the third-layer parts placement portion 4 is fixedly mounted on the third-level positioning beam. The first-layer parts placement portion 2, the second-layer parts placement portion 3 , the three-layer parts placement part 4 is composed of a roller bracket 5, a front roller 6, a rear roller 7, a middle roller 8, a conveyor belt 9 and a parts positioning mechanism 10. The front roller 6, the rear roller 7 and the middle roller 8 are all rotatably mounted on the roller bracket 5. The front roller 6 and the rear roller 7 are fixedly mounted with edge pulleys 21 at both ends, and the middle roller 8 is fixedly mounted with middle pulleys 22 at both ends. The conveyor belt 9 is driven and mounted on the edge pulleys 21 and the middle pulleys 22. The parts positioning mechanism 10 is fixedly mounted on the conveyor belt 9, and the parts positioning mechanism 10 is evenly arranged on the conveyor belt 9. There is a circle, and the rod-shaped parts 20 to be turned over are positioned by the parts positioning mechanism 10. The parts positioning mechanism 10 is composed of a lower base 24, an upper base 25 and a rotating shaft 26. The front side end of the roller bracket 5 is fixedly installed with an open cover lever 12 through a first-level positioning seat 11, and the rear side end of the roller bracket 5 is fixedly installed with a cover closing component through a second-level positioning seat 13. The rear roller 7 is driven by a drive motor, and the drive motor is a servo motor, and a power cord is connected to the drive motor, and the end of the power cord is connected to a plug. By setting the material rack body 1, the first-layer parts placement part 2, the second-layer parts placement part 3 and the third-layer parts The loading and unloading device for the automobile parts transport rack is composed of a combination of the placement parts 4, and the first-layer parts placement part 2, the second-layer parts placement part 3, and the third-layer parts placement part 4 are all arranged to be composed of a roller bracket 5, a front roller 6, a rear roller 7, a middle roller 8, a conveyor belt 9 and a parts positioning mechanism 10, so that the first-layer parts placement part 2, the second-layer parts placement part 3 and the third-layer parts placement part 4 drive the rod-shaped parts 20 to be circulated to circulate, so that the staff can easily place the rod-shaped parts 20 in the center position on the transport rack, and can also easily take out the rod-shaped parts 20 in the center position.

[0045] Example 2

[0046] On the basis of embodiment 1, the bottom of the lower seat body 24 is integrally formed with a bottom plate 28, and the bottom plate 28 is fixedly installed on the conveyor belt 9, the upper seat body 25 is hingedly connected to the lower seat body 24 through a rotating shaft 26, and a torsion spring 27 is installed on the rotating shaft 26. The two pins of the torsion spring 27 are fixedly connected to the side walls of the lower seat body 24 and the upper seat body 25 respectively, and when the torsion spring 27 is in the reset state, the upper seat body 25 and the lower seat body 24 are arranged in a flush expanded state. A movable groove 29 is provided on the end of the lower seat body 24 away from the rotating shaft 26, and a guide rod groove 30 is provided at the bottom of the movable groove 29. The guide rod groove 30 passes through, and a card seat groove 31 is provided on the upper side of the guide rod groove 30, and a docking groove 32 is provided on the side of the card seat groove 31. A docking seat 34 is fixedly welded on the end of the upper seat body 25 away from the rotating shaft 26. The docking seat 3 4 is integrally formed with a latch tooth 35, and a latch assembly 33 is installed in the movable groove 29. The latch assembly 33 is composed of a guide rod 36, a movable rod 37, a head 38, a return spring 39 and a latch seat 40. The guide rod 36, the movable rod 37 and the head 38 are integrally formed, and the guide rod 36 is movably set in the guide rod groove 30, the movable rod 37 is movably set in the movable groove 29, the return spring 39 is sleeved on the guide rod 36, the latch seat 40 is fixedly welded to the side wall of the guide rod 36, and the latch seat 40 is movably set in the latch seat groove 31, and the width of the latch seat groove 31 is greater than the width of the latch seat 40, and when the return spring 39 is in the reset state, the latch seat 40 leans against the side of the latch seat groove 31 located at one end of the head 38, and the side of the latch seat 40 leaning against the head 38 is provided with a latch tooth groove 41.

[0047] The cross-section of the latch 35 is a right triangle. The size of the docking seat 34 matches the size of the docking groove 32. When the docking seat 34 is inserted into the docking groove 32, the latch 35 is inserted into the latch groove 41 on the docking seat 40. At this time, the inclined surface of the latch 35 is facing the direction of the lower seat body 24.

[0048] The top head 38 is a convex block structure with a right-angled trapezoidal cross section, and the top head 38 is set flush with the cover-opening lever 12, and when the conveyor belt 9 is moving, the part positioning mechanism 10 located on the upper side of the conveyor belt 9 moves from the front end of the roller bracket 5 to the rear end of the roller bracket 5, and at this time, the inclined surface of the top head 38 moves toward the cover-opening lever 12, and the cover-opening lever 12 interferes with the top head 38, and when the cover-opening lever 12 abuts against the outer end surface of the top head 38, its card seat 40 is forced to move inward, and at this time, the latch 35 withdraws from the latch groove 41, by setting the part positioning mechanism 10 to consist of the lower seat 24, the upper seat 25 and the rotating shaft 26 combination, and a movable groove 29, a guide rod groove 30, a card seat groove 31, and a docking groove 32 are provided on the lower seat body 24, and a clamping assembly 33 composed of a guide rod 36, a movable rod 37, a head 38, a return spring 39 and a card seat 40 is installed in the movable groove 29, and a card tooth groove 41 is provided on the card seat 40, and a card tooth 35 is provided on the docking seat 34 of the upper seat body 25, thereby forming a lock to form a stable positioning of the rod-shaped part 20, and through the force of the relative movement of the cover opening lever 12 and the head 38 and the force of the torsion spring 27, the upper seat body 25 is automatically unfolded, thereby facilitating the staff to take the material.

[0049] Example 3

[0050] On the basis of the second embodiment, the cover closing assembly on the secondary positioning seat 13 is composed of a first-level telescopic electric cylinder 14, a second-level telescopic electric cylinder 15, a third-level telescopic electric cylinder 16, a first-level cover closing lever 17, a second-level cover closing lever 18 and a third-level cover closing lever 19. The first-level telescopic electric cylinder 14, the second-level telescopic electric cylinder 15 and the third-level telescopic electric cylinder 16 are all fixedly installed on the secondary positioning seat 13. The first-level cover closing lever 17, the second-level cover closing lever 18 and the third-level cover closing lever 19 are fixedly connected to the telescopic rods of the first-level telescopic electric cylinder 14, the second-level telescopic electric cylinder 15 and the third-level telescopic cylinder 16 respectively, and the setting heights of the first-level cover closing lever 17, the second-level cover closing lever 18 and the third-level cover closing lever 19 tend to increase successively.

[0051] When the upper seat 25 and the lower seat 24 are in a flush and expanded state, the port of the first-level closing lever 17 is lower than the port of the upper seat 25, and when the upper seat 25 and the lower seat 24 are in a closed state, the lower side of the third-level closing lever 19 is set flush with the upper side of the upper seat 25, the first-level telescopic electric cylinder 14, the second-level telescopic electric cylinder 15, the third-level telescopic electric cylinder 16, and the drive motor are all connected to the PLC control module on the device by electrical signals, and a stop block 42 is fixedly welded at the port position on the outer side of the inner cavity of the lower seat 24, and the spacing value between the stop blocks 42 on both sides is consistent with the length value of the rod-shaped part 20, so as to facilitate the insertion and removal of the first-level closing lever 17, the second-level closing lever 18 and the third-level closing lever 19 in sequence, thereby completing the automatic closing of the upper seat 25, thereby realizing the automatic operation of the structure, so as to improve the overall automation level of the structure.

[0052] Example 4

[0053] On the basis of Example 3, meshing teeth 23 are integrally formed on the wheel surface of the edge pulley 21, and a meshing tooth groove is provided on the inner side surface of the conveyor belt 9, and the meshing tooth groove is arranged corresponding to the meshing teeth 23 on the conveyor belt 9. When the conveyor belt 9 is actually installed, its meshing teeth 23 are embedded in the meshing tooth groove, and the transmission stability of the conveyor belt 9 is ensured by the mutual engagement of the meshing teeth 23 and the meshing tooth groove.

[0054] Example 5

[0055] On the basis of the fourth embodiment, the front ends of the first-layer part placement portion 2, the second-layer part placement portion 3, and the third-layer part placement portion 4 are arranged in a stepped manner, ensuring that the parts on each layer of the part placement portion can be taken very conveniently.

[0056] Working principle: in actual use, when the part positioning mechanism 10 moves to the position of the cover opening lever 12, its top head 38 and the cover opening lever 12 are subjected to force, so that the latch tooth 35 withdraws from the latch tooth groove 41, and under the action of the torsion spring 27, the upper seat body 25 is bounced open, and then the rod-shaped part 20 is placed on the lower seat body 24. When the part positioning mechanism 10 moves to the position of the cover opening lever 12, it first drives the first-level telescopic electric cylinder 14 and the second-level telescopic electric cylinder 15 to move in a process, so that the upper seat body 25 is flipped up under the action of the first-level cover closing lever 17 and the second-level cover closing lever 18, and then the first-level telescopic electric cylinder 14 returns and the third-level telescopic electric cylinder 16 moves in a process to allow the upper seat body 25 to continue to flip, and then the second-level telescopic cylinder 15 returns, so that when the upper seat body 25 moves past the bottom of the third-level cover closing lever 19, the force is applied to allow the upper seat body 25 to close on the lower seat body 24.

[0057] Although the above describes the illustrative specific implementation methods of the present application so that those skilled in the art can understand the present application, the present application is not limited to the scope of the specific implementation methods. For those of ordinary skill in the art, as long as various changes are within the spirit and scope of the present application defined and determined by the attached claims, all application creations based on the concept of the present application are protected.

Claims

1. A loading and unloading device for an automobile parts transport rack, characterized in that: The loading and unloading device for the automobile parts transport rack comprises: A material rack body (1), wherein a roller structure (43) is rotatably mounted on the bottom of the material rack body (1), and a first-level positioning beam, a second-level positioning beam, and a third-level positioning beam are welded and positioned in sequence from bottom to top on the upright column of the material rack body (1); A first-layer parts placement portion (2), wherein the first-layer parts placement portion (2) is fixedly mounted on a first-level positioning beam; A second-layer parts placement portion (3), wherein the second-layer parts placement portion (3) is fixedly mounted on the secondary positioning beam; A three-layer parts placement portion (4), wherein the three-layer parts placement portion (4) is fixedly mounted on a three-level positioning beam; The first-layer part placement part (2), the second-layer part placement part (3), and the third-layer part placement part (4) are all composed of a roller support (5), a front roller (6), a rear roller (7), a middle roller (8), a conveyor belt (9), and a part positioning mechanism (10). The front roller (6), the rear roller (7), and the middle roller (8) are all rotatably mounted on the roller support (5). Edge pulleys (21) are fixedly mounted at both ends of the front roller (6) and the rear roller (7). Middle pulleys (22) are fixedly mounted at both ends of the middle roller (8). The conveyor belt (9) is driven and mounted on the edge pulleys (21) and the middle pulleys (22). The part positioning mechanism (10) is fixedly mounted on the conveyor belt (9), and the part positioning mechanism (10) is evenly arranged on the conveyor belt (9) for a circle. The rod-shaped parts (20) to be circulated are positioned by the part positioning mechanism (10). The part positioning mechanism (10) is composed of a lower seat (24), an upper seat (25) and a rotating shaft (26); The front end of the roller support (5) is fixedly mounted with a cover opening lever (12) via a primary positioning seat (11), and the rear end of the roller support (5) is fixedly mounted with a cover closing assembly via a secondary positioning seat (13); The rear roller shaft (7) is driven by a driving motor, and the driving motor is a servo motor. The driving motor is connected to a power line, and the end of the power line is connected to a plug.

2. The loading and unloading device for an automobile parts transport rack according to claim 1, characterized in that: The bottom of the lower seat (24) is integrally formed with a bottom plate (28), and the bottom plate (28) is fixedly mounted on the conveyor belt (9). The upper seat (25) is hingedly connected to the lower seat (24) via a rotating shaft (26). A torsion spring (27) is mounted on the rotating shaft (26). Two pins of the torsion spring (27) are respectively fixedly connected to the side walls of the lower seat (24) and the upper seat (25). When the torsion spring (27) is in a reset state, the upper seat (25) and the lower seat (24) are arranged in a flush and unfolded state.

3. The loading and unloading device for an automobile parts transport rack according to claim 2, characterized in that: A movable groove (29) is provided on the end of the lower seat body (24) away from the rotating shaft (26), a guide rod groove (30) is provided at the bottom of the movable groove (29), the guide rod groove (30) passes through, and a clamping seat groove (31) is provided on the upper side of the guide rod groove (30), and a docking groove (32) is provided on the side of the clamping seat groove (31), a docking seat (34) is fixedly welded on the end of the upper seat body (25) away from the rotating shaft (26), a latching tooth (35) is integrally formed on the side of the docking seat (34), and a clamping assembly (33) is installed in the movable groove (29).

4. The loading and unloading device for an automobile parts transport rack according to claim 3, characterized in that: The engaging assembly (33) is composed of a guide rod (36), a movable rod (37), a head (38), a return spring (39) and a clamping seat (40). The guide rod (36), the movable rod (37) and the head (38) are integrally formed. The guide rod (36) is movably arranged in the guide rod groove (30), the movable rod (37) is movably arranged in the movable groove (29), and the return spring (39) is sleeved on the guide rod (36). The card seat (40) is fixedly welded on the side wall of the guide rod (36), and the card seat (40) is movably arranged in the card seat groove (31), and the width value of the card seat groove (31) is greater than the width value of the card seat (40), and when the reset spring (39) is in the reset state, the card seat (40) is close to the side of the card seat groove (31) located at one end of the head (38), and a tooth groove (41) is provided on the side of the card seat (40) close to the end of the head (38).

5. The loading and unloading device for an automobile parts transport rack according to claim 4, characterized in that: The cross section of the latching teeth (35) is a right triangle. The size of the docking seat (34) matches the size of the docking groove (32). When the docking seat (34) is embedded in the docking groove (32), the latching teeth (35) are embedded in the latching tooth groove (41) on the docking seat (40). At this time, the inclined surface of the latching teeth (35) is facing the lower seat body (24).

6. The loading and unloading device for an automobile parts transport rack according to claim 5, characterized in that: The top head (38) is a convex block structure with a right-angled trapezoidal cross section, and the top head (38) is arranged flush with the cover opening lever (12). When the conveyor belt (9) moves, the part positioning mechanism (10) located on the upper side of the conveyor belt (9) moves from the front end of the roller support (5) to the rear end of the roller support (5). At this time, the inclined surface of the top head (38) moves toward the cover opening lever (12), and the cover opening lever (12) interferes with the top head (38). When the cover opening lever (12) contacts the outer end surface of the top head (38), the clamping seat (40) is forced to move inward, and at this time, the clamping tooth (35) withdraws from the clamping tooth groove (41).

7. The loading and unloading device for an automobile parts transport rack according to claim 6, characterized in that: The cover closing assembly on the secondary positioning seat (13) is composed of a primary telescopic electric cylinder (14), a secondary telescopic electric cylinder (15), a tertiary telescopic electric cylinder (16), a primary cover closing lever (17), a secondary cover closing lever (18) and a tertiary cover closing lever (19). The primary telescopic electric cylinder (14), the secondary telescopic electric cylinder (15) and the tertiary telescopic electric cylinder (16) are all fixedly mounted on the secondary positioning seat (13). The primary cover closing lever (17), the secondary cover closing lever (18) and the tertiary cover closing lever (19) are respectively fixedly connected to the telescopic rods of the primary telescopic electric cylinder (14), the secondary telescopic electric cylinder (15) and the tertiary telescopic electric cylinder (16). The arrangement heights of the primary cover closing lever (17), the secondary cover closing lever (18) and the tertiary cover closing lever (19) are in a trend of increasing in sequence.

8. The loading and unloading device for an automobile parts transport rack according to claim 7, characterized in that: When the upper seat (25) and the lower seat (24) are in a flush unfolded state, the port of the first-stage closing lever (17) is lower than the port of the upper seat (25), and when the upper seat (25) and the lower seat (24) are in a closed state, the lower side of the third-stage closing lever (19) is flush with the upper side of the upper seat (25). The first-stage telescopic electric cylinder (14), the second-stage telescopic electric cylinder (15), the third-stage telescopic electric cylinder (16), and the driving motor are all connected to the PLC control module on the device via electrical signals. A stopper (42) is fixedly welded at the outer port position of the inner cavity of the lower seat (24), and the spacing between the stoppers (42) on both sides is consistent with the length of the rod-shaped part (20).

9. The loading and unloading device for an automobile parts transport rack according to claim 1, characterized in that: The wheel surface of the edge pulley (21) is integrally formed with meshing teeth (23), and the inner side surface of the transmission belt (9) is provided with a meshing tooth groove, and the meshing tooth groove is arranged corresponding to the meshing teeth (23) on the transmission belt (9), and when the transmission belt (9) is actually installed, its meshing teeth (23) are embedded in the meshing tooth groove.

10. The loading and unloading device for an automobile parts transport rack according to claim 1, characterized in that: The front ends of the first-layer part placement portion (2), the second-layer part placement portion (3), and the third-layer part placement portion (4) are arranged in a stepped manner.

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