Assembly part transfer device

Abstract

The application discloses an assembly piece transfer device, which comprises a base frame, a feeding mechanism and a transfer mechanism. The width direction of the base frame is the first direction. The base frame is movably arranged, and has a feeding position and a taking position on the movable stroke. The feeding mechanism is arranged on the top of the base frame. The feeding mechanism comprises a first feeding frame and at least one second feeding frame which are arranged side by side and spaced apart in the first direction. The first feeding frame has a first feeding part for receiving corresponding assembly pieces. The second feeding frame has a second feeding part which is movably arranged and can be moved to the feeding position to receive corresponding assembly pieces when the base frame is in the feeding position. The transfer mechanism is movably arranged and drivingly connected with the base frame to make the base frame flow between the feeding position and the taking position. The assembly piece transfer device can not only cooperate with the robot to carry the assembly pieces, but also can reduce the personnel configuration, avoid manual operation and improve the production efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicle body manufacturing, and particularly relates to an assembly piece transfer device. BACKGROUND

[0002] The structure of a vehicle body is complex, and the vehicle body structure can be decomposed into multiple large assembly pieces, which need to be welded in each area and then transferred to a welding main line to be welded into a vehicle body assembly. The front roof assembly of a commercial vehicle cab is a large assembly piece. When manual welding is performed, the welded front roof assembly needs to be manually loaded into a rack. The front roof assembly is large, and manual handling is difficult. Meanwhile, after a robot welding transformation is performed on a welding production line, the existing rack cannot cooperate with the robot to realize handling of the large assembly piece. SUMMARY

[0003] The main purpose of the present application is to provide an assembly piece transfer device capable of cooperating with a robot to realize handling of an assembly piece.

[0004] To achieve the above purpose, the present application provides an assembly piece transfer device, which comprises:

[0005] a base frame, a direction in which the width of the base frame is located being a first direction, the base frame being movably arranged, and having a feeding position for feeding and a taking position for taking on a movement stroke of the base frame;

[0006] a feeding mechanism arranged on the top of the base frame, the feeding mechanism comprising a first feeding rack and at least one second feeding rack arranged side by side and spaced apart in the first direction, the first feeding rack having a first feeding part for receiving a corresponding assembly piece, the second feeding rack having a second feeding part movably arranged for being moved to a feeding position to receive a corresponding assembly piece when the base frame is at the feeding position; and

[0007] a transfer mechanism movably arranged and drivingly connected to the base frame to make the base frame flow between the feeding position and the taking position.

[0008] Optionally, a direction in which the length of the base frame is located is a second direction, wherein:

[0009] two first hanging convex parts are arranged on the first feeding rack, the two first hanging convex parts being arranged side by side and spaced apart in the second direction for jointly hanging an upper end of a corresponding assembly piece, wherein the first feeding part comprises the two first hanging convex parts; and / or

[0010] two second hanging convex parts are arranged on the second feeding rack, the two second hanging convex parts being arranged side by side and spaced apart in the second direction for jointly hanging an upper end of a corresponding assembly piece, wherein the second feeding part comprises the two second hanging convex parts.The second feeding frame is provided with two second hanging protrusions, the two second hanging protrusions are arranged side by side and movable relative to each other in the second direction, and are used to hang the upper end of the corresponding assembly when the base frame is in the feeding position.

[0011] Optionally, the second feeding frame comprises:

[0012] Two support rods are arranged on the top of the base frame, and the two support rods are arranged side by side and spaced apart in the second direction.

[0013] Two feeding rods are arranged side by side in the second direction, each of the feeding rods extends along the first direction, and the two rotating ends of the two feeding rods, which are opposite to each other, are rotatably arranged on the two support rods along the extension axis of the first direction, so that the feeding rods can be rotated to the feeding position when the base frame is in the feeding position.

[0014] The two second hanging protrusions are arranged on the two feeding ends of the two feeding rods.

[0015] Optionally, the rotating end of each feeding rod is further provided with a stop protrusion, and the stop protrusion is coaxially rotatable with the feeding rod.

[0016] The assembly transfer device further comprises two fixed frames arranged at the feeding position, the two fixed frames are arranged side by side and spaced apart in the second direction to define a passage for the base frame to pass through, and when the base frame is moved to the feeding position, the upper end surface of each fixed frame is in contact with the lower end surface of the corresponding stop protrusion, the upper end surface of the fixed frame is provided with a driving slope, and in the first direction, the driving slope is arranged downwardly inclined to the side of the base frame, so that when the base frame is moved to the feeding position, the stop protrusion can be pushed to rotate, and the feeding rod is rotated to the feeding position.

[0017] Optionally, a bearing plate is further arranged on the top of the base frame, the bearing plate is used to bear the lower end of the support assembly, the upper end surface of the bearing plate is formed with at least two avoiding grooves, the two avoiding grooves are arranged side by side and spaced apart in the first direction, and correspond to the first feeding frame and the second feeding frame respectively, and each avoiding groove is arranged penetratingly in the second direction to avoid accommodating the lower end of the assembly.

[0018] Optionally, a fixing mechanism is arranged at the feeding position, the fixing mechanism comprises:

[0019] A stopper corresponding to one side of the base frame in the first direction is arranged to stop the base frame when the base frame is moved to the loading position; and

[0020] A fixing assembly is arranged on the stopper to fix the stopper and the base frame when the base frame is moved to abut the stopper.

[0021] Optionally, the fixing assembly comprises a magnetic structure and / or a clamping structure, wherein:

[0022] The magnetic structure comprises a magnetic part and a matching part, one of which is arranged on the stopper and the other of which is arranged on the base frame to magnetically fix the stopper and the base frame when the base frame is moved to abut the stopper.

[0023] The clamping structure comprises a clamping part arranged on the stopper, which is movably arranged to clamp and fix the base frame when the base frame is moved to abut the stopper.

[0024] Optionally, the length direction of the base frame is the second direction.

[0025] The clamping structure comprises a clamping cylinder, the cylinder seat of which is arranged on the stopper and is positionally adjustable in the second direction.

[0026] The clamping part comprises two clamping jaws of the clamping cylinder.

[0027] Optionally, the stopper is provided with an extension rod on the side facing the base frame, which extends in the first direction to be above the base frame when the base frame is moved to abut the stopper.

[0028] The assembly conveying device further comprises at least two assembly detectors, two of which are arranged on the extension rod and correspond to the first and second material racks respectively to detect whether there is an assembly on the first and second material racks respectively.

[0029] Optionally, the base frame comprises:

[0030] A mounting frame arranged horizontally; and

[0031] Four support columns arranged on the bottom of the mounting frame and corresponding to the four corners of the mounting frame, the bottom end of each support column being provided with a universal wheel.

[0032] The conveying mechanism comprises a traction trolley arranged below the mounting frame and drivingly connected to the mounting frame.

[0033] The assembly piece transfer device comprises a base frame, a feeding mechanism and a transfer mechanism. The transfer mechanism drives the base frame to move between the feeding position and the taking position. A first feeding rack and at least one second feeding rack are arranged on the top of the base frame. The first feeding rack and the second feeding rack are arranged side by side in the first direction. The first feeding part of the first feeding rack is used for receiving a corresponding assembly piece. The second feeding part of the second feeding rack is movably arranged and can be moved to a feeding position to receive a corresponding assembly piece when the base frame is in the feeding position. In actual production, when only one assembly piece needs to be transferred, the base frame is moved to the feeding position, and a feeding robot places the assembly piece on the first feeding part of the first feeding rack. Then, the base frame is moved to the taking position, and a taking robot takes the assembly piece on the first feeding part. In this way, the transfer of the assembly piece is completed. When two or more assembly pieces need to be transferred, the base frame is moved to the feeding position, and the second feeding part of the second feeding rack is moved to the feeding position. Then, a feeding robot places the assembly pieces on the first feeding part and the second feeding parts of the second feeding racks in sequence. In this way, the transfer of multiple assembly pieces is completed. By arranging the assembly piece transfer device, the assembly piece can be transferred by the robot, the number of personnel can be reduced, manual operation can be avoided, and the production efficiency can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only show some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort based on the drawings shown.

[0035] Figure 1 The structure schematic diagram of an embodiment of the assembly piece transfer device provided by the present application is shown in the figure.

[0036] Figure 2 The structure schematic diagram of a part rack in the figure is shown in the figure. Figure 1

[0037] Figure 3 The structure schematic diagram of a part rack in the figure is shown in the figure. Figure 1

[0038] Figure 4 The structure schematic diagram of a part rack in the figure is shown in the figure. Figure 1

[0039] Figure 5 The structure schematic diagram of a part rack in the figure is shown in the figure. Figure 1 ​​​A schematic diagram of the clamping device and fixing frame in the middle;

[0040] Figure 6 for Figure 1 A schematic diagram showing the interaction between the clamping device and the parts rack;

[0041] Figure 7 for Figure 1 A schematic diagram of the structure on the parts rack that is welded by a robot.

[0042] Explanation of reference numerals in the accompanying drawings of the embodiments provided in this invention:

[0043]

[0044]

[0045] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0047] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0048] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0049] The automobile body structure is complex, and the body structure can be decomposed into multiple assembly pieces, which need to be welded in each area and then transferred to the welding main line to be welded into a body assembly. The front top assembly of a commercial vehicle cab is a large assembly piece, which needs to be manually loaded into a rack after welding when manually welding. The front top assembly is large and difficult to manually carry. Meanwhile, after the welding production line is reformed to implement robot welding, the existing rack cannot cooperate with the robot to carry the large assembly piece.

[0050] In view of this, the assembly piece transfer device is provided. Figures 1 to 7 The assembly piece transfer device provided by the present application has the advantages that the assembly piece transfer device can realize the automatic transfer of the assembly piece, and the assembly piece can be transferred to the welding position in a stable and reliable manner.

[0051] Please refer to Figure 1 and Figure 7 , the assembly piece transfer device 100 includes a base frame 1, a feeding mechanism 2 and a transfer mechanism 3; the width direction of the base frame 1 is the first direction F1, the base frame 1 is movably arranged, and has a feeding position for feeding and a taking position for taking on its movable stroke; the feeding mechanism 2 is arranged on the top of the base frame 1, the feeding mechanism 2 includes a first feeding rack 21 and at least one second feeding rack 23 arranged side by side and spaced apart in the first direction F1, the first feeding rack 21 has a first feeding part for receiving the corresponding assembly piece 200, and the second feeding rack 23 has a second feeding part movably arranged for receiving the corresponding assembly piece 200 when the base frame 1 is in the feeding position; the transfer mechanism 3 is movably arranged and drivingly connected to the base frame 1 to make the base frame 1 flow between the feeding position and the taking position.

[0052] The technical scheme of the present application, the assembly transferring device 100 includes a base frame 1, a feeding mechanism 2 and a transferring mechanism 3; the transferring mechanism 3 drives the base frame 1 to flow between the feeding position and the taking position; a first feeding rack 21 and at least one second feeding rack 23 are arranged on the top of the base frame 1, the first feeding rack 21 and the second feeding rack 23 are arranged side by side and spaced apart in the first direction F1, the first feeding part of the first feeding rack 21 is used for receiving the corresponding assembly 200, the second feeding part on the second feeding rack 23 is movably arranged, and when the base frame 1 is in the feeding position, the second feeding part can be moved to the feeding position to receive the corresponding assembly 200; in the actual production process, when only one assembly 200 needs to be transferred, the base frame 1 is moved to the feeding position, the assembly 200 is placed on the first feeding part of the first feeding rack 21 by the feeding robot 300, the base frame 1 is moved to the taking position, and the assembly 200 on the first feeding part is taken off by the taking robot 300, so that the transfer of the assembly 200 is completed; when two or more assemblies 200 need to be transferred, the base frame 1 is moved to the feeding position, the second feeding part of the second feeding rack 23 is moved to the feeding position, and the assemblies 200 are sequentially placed on the first feeding part and the second feeding part of each second feeding rack 23 by the feeding robot 300, so that the transfer of multiple assemblies 200 is completed at the same time; by arranging the assembly transferring device 100, not only the assembly 200 can be carried by the robot 300, but also the personnel configuration can be reduced, manual operation can be avoided, and the production efficiency can be improved.

[0053] Further refer to Figure 2 The length direction of the base frame 1 is a second direction F2, wherein two first hanging convex parts 22 are arranged on the first feeding rack 21 and / or two second hanging convex parts 24 are arranged on the second feeding rack 23; that is, the first hanging convex parts 22 can be arranged on the first feeding rack 21, or the second hanging convex parts 24 can be arranged on the second feeding rack 23, specifically, in the embodiment, the first hanging convex parts 22 are arranged on the first feeding rack 21, and the second hanging convex parts 24 are arranged on the second feeding rack 23; by arranging the first hanging convex parts 22 and the second hanging convex parts 24, the upper end of the assembly 200 is hung, and the structure is simple.

[0054] Specifically, the first feeding rack 21 is provided with two first hanging protrusions 22, and the two first hanging protrusions 22 are arranged side by side and spaced apart in the second direction F2 and used for jointly hanging the upper ends of the corresponding assembly pieces 200, wherein the first feeding part includes the two first hanging protrusions 22; the second feeding rack 23 is provided with two second hanging protrusions 24, and the two second hanging protrusions 24 are arranged side by side and spaced apart in the second direction F2 and movable relative to each other, and used for being moved to the feeding position to jointly hang the upper ends of the corresponding assembly pieces 200 when the base frame 1 is in the feeding position, wherein the second feeding part includes the two second hanging protrusions 24; that is, during the transferring process, when only one assembly piece 200 needs to be transferred, the base frame 1 is moved to the feeding position, and the feeding robot 300 places the assembly piece 200 on the two first hanging protrusions 22 of the first feeding rack 21, and the two first hanging protrusions 22 are used for jointly hanging the upper ends of the corresponding assembly pieces 200, the base frame 1 is moved to the taking position, and the taking robot 300 takes the assembly pieces 200 on the two first hanging protrusions 22, so that the transferring of the assembly pieces 200 is completed; when two or more assembly pieces 200 need to be transferred, the base frame 1 is moved to the feeding position, the two second hanging protrusions 24 of the second feeding rack 23 are moved to the feeding position, and the feeding robot 300 places the assembly pieces 200 on the two first hanging protrusions 22 and the two second hanging protrusions 24 of the second feeding rack 23 in sequence, the base frame 1 is moved to the taking position, and the taking robot 300 takes the assembly pieces 200 on the two first hanging protrusions 22 and the two second hanging protrusions 24 in sequence, so that the transferring of multiple assembly pieces 200 is completed at the same time.

[0055] Specifically, the second feeding rack 23 includes two support rods 231 and two feeding rods 232; the two support rods 231 are arranged side by side and spaced apart in the second direction F2 on the top of the base frame 1; the two feeding rods 232 are arranged side by side in the second direction F2, each of the feeding rods 232 extends along the first direction F1, and the two turning ends of the two feeding rods 232 that face away from each other are respectively turnably installed on the two support rods 231 along the extension axes of the first direction F1, so as to be turned to the feeding position when the base frame 1 is in the feeding position; wherein the two second hanging protrusions 24 are arranged on the two feeding ends of the two feeding rods 232 that face away from each other; that is, through the turning of the feeding rods 232, the second hanging protrusions 24 can be turned to the feeding position, and the structure is simple and the operation is simple.

[0056] More specifically, the rotating end of each of the feeding rods 232 is further provided with a stop protrusion 25, which can rotate coaxially with the feeding rod 232; the assembly transferring device 100 further comprises two fixed frames 4 arranged at the feeding position, which are arranged side by side and spaced apart in the second direction F2 to define a passage for the base frame 1 to pass through, and when the base frame 1 moves to the feeding position, the upper end surface of each of the fixed frames 4 is in abutment with the lower end surface of the corresponding stop protrusion 25, and the upper end surface of the fixed frame 4 is provided with a driving slope 41, which is arranged downwardly toward one side of the base frame 1 in the first direction F1, so as to push the stop protrusion 25 to rotate when the base frame 1 moves to the feeding position, so as to rotate the feeding rod 232 to the feeding position; it should be noted that, in order to further reduce manual intervention during the transferring of the assembly 200, two fixed frames 4 are arranged at the feeding position, the upper end surface of each of the fixed frames 4 is in abutment with the lower end surface of the corresponding stop protrusion 25, and the upper end surface of the fixed frame 4 is provided with a driving slope 41, which is arranged downwardly toward one side of the base frame 1 in the first direction F1, and during the movement of the base frame 1 toward the feeding position, the lower end surface of the stop protrusion 25 is in abutment with the upper end surface of the fixed frame 4, and since the upper end surface of the fixed frame 4 is provided with the driving slope 41, which is arranged downwardly toward one side of the base frame 1 in the first direction F1, as the base frame 1 moves, the driving slope 41 pushes the stop protrusion 25 to rotate, and the stop protrusion 25 drives the feeding rod 232 to rotate to the feeding position, so as to smoothly feed.

[0057] In order to ensure the stability of the transferring of the assembly 200, in the present application, please refer to Figure 2 and Figure 6 The top of the base frame 1 is further provided with a bearing plate 5 for bearing and supporting the lower end of the assembly 200, and the upper end surface of the bearing plate 5 is formed with at least two avoiding grooves 51 arranged side by side and spaced apart in the first direction F1 and corresponding to the first feeding frame 21 and the second feeding frame 23 respectively, and each of the avoiding grooves 51 is arranged through in the second direction F2 to avoid accommodating the lower end of the assembly 200; during the transferring of the assembly 200, when the assembly 200 is fed to the first feeding frame 21 and the second feeding frame 23, the two first hanging protrusions 22 of the first feeding frame 21 and the two second hanging protrusions 24 of the second feeding frame 23 hang the upper end of the assembly 200, and the lower end of the assembly 200 is placed on the bearing plate 5 and in the corresponding avoiding groove 51; in this way, the assembly 200 can be simultaneously supported and limited, so as to make the assembly 200 more stable.

[0058] Please refer to Figure 5 and Figure 6 A fixing mechanism 6 is arranged at the feeding position, which comprises a stop frame 61 and a fixing assembly 62; the stop frame 61 is arranged on one side of the base frame 1 in the first direction F1 to stop the base frame 1 when it moves to the feeding position; the fixing assembly 62 is arranged on the stop frame 61 to fix the stop frame 61 and the base frame 1 when the base frame 1 moves to abut the stop frame 61; in order to improve the feeding efficiency, the fixing mechanism 6 is arranged to fix the base frame 1 at the feeding position when it moves to the feeding position, and the assembly 200 is placed on the first feeding rack 21 and / or the second feeding rack 23 by the feeding robot 300, so that the base frame 1 remains stable during the feeding process of the feeding robot 300, thereby improving the feeding efficiency.

[0059] It should be noted that the fixing assembly 62 comprises a magnetic attraction structure 621 and / or a clamping structure 622, that is, the base frame 1 can be fixed by arranging the magnetic attraction structure 621; the base frame 1 can also be fixed by arranging the clamping structure 622; specifically, in this embodiment, the magnetic attraction structure 621 and the clamping structure 622 are arranged simultaneously to fix the base frame 1 together, so that the base frame 1 is more stable.

[0060] Specifically, the magnetic attraction structure 621 comprises a magnetic attraction part and a matching part, one of which is arranged on the stop frame 61, and the other is arranged on the base frame 1 to magnetically fix the stop frame 61 and the base frame 1 when the base frame 1 moves to abut the stop frame 61; the clamping structure 622 comprises a clamping part arranged on the stop frame 61, which is movably arranged to clamp and fix the base frame 1 when the base frame 1 moves to abut the stop frame 61; that is, when the base frame 1 moves to the feeding position, the base frame 1 abuts the stop frame 61, the magnetic attraction part and the matching part are magnetically matched to fix the stop frame 61 and the base frame 1; at the same time, the clamping part is moved to clamp and fix the base frame 1; such arrangement makes the base frame 1 more stably fixed at the feeding position.

[0061] More specifically, the length direction of the base frame 1 is the second direction F2; the clamping structure 622 comprises a clamping jaw cylinder, a cylinder seat of the clamping jaw cylinder is arranged on the stop frame 61, and the position of the cylinder seat is adjustable in the second direction F2; wherein the clamping part comprises two clamping jaws of the clamping jaw cylinder; the base frame 1 is clamped and fixed by arranging the clamping jaw cylinder, the structure is simple, the operation is simple, and the cost is low.

[0062] In another embodiment, referring further to Figure 3 、 Figure 5 and Figure 6 , the stop frame 61 is provided with an extension rod 7 on the side facing the base frame 1, the extension rod 7 extends along the first direction F1, so as to be above the base frame 1 when the base frame 1 is moved to abut against the stop frame 61; the assembly conveying device 100 further comprises at least two assembly detectors 8, two assembly detectors 8 are arranged on the extension rod 7, and the two assembly detectors 8 are respectively arranged corresponding to the first material placing frame 21 and the second material placing frame 23, so as to respectively detect whether there is an assembly 200 on the first material placing frame 21 and the second material placing frame 23; by arranging two assembly detectors 8, whether there is an assembly 200 on the first material placing frame 21 and the second material placing frame 23 is detected, so that the number of assemblies 200 conveyed at a time can be detected in time, thereby facilitating the operator to check whether the number of assemblies 200 conveyed at a time is correct.

[0063] Further referring to Figures 1 to 4 , the base frame 1 comprises a mounting frame 11 and four supporting columns 12; the mounting frame 11 is arranged horizontally; the four supporting columns 12 are arranged on the bottom of the mounting frame 11 and correspond to four corners of the mounting frame 11, and the bottom end of each supporting column 12 is respectively provided with a universal wheel 13; the conveying mechanism 3 comprises a traction trolley 31, the traction trolley 31 is arranged below the mounting frame 11 and is drivingly connected to the mounting frame 11; that is, the base frame 1 is conveyed between the feeding position and the material taking position by arranging the traction trolley 31, the structure is simple, and the operation is simple.

[0064] The above only describes the preferred embodiments of the present application, and does not limit the patent scope of the present application, any equivalent structural transformation made according to the content of the specification and drawings of the present application, or direct / indirect application in other related technical fields within the concept of the present application is included in the patent protection scope of the present application.

Claims

1. An assembly transfer device, characterized in that, include: The base frame, the width of which is in the first direction, is movably configured, and has a feeding position for feeding and a picking position for picking up materials along its moving stroke; A feeding mechanism is provided on the top of the base frame. The feeding mechanism includes a first feeding frame and at least one second feeding frame arranged side by side at intervals in the first direction. The first feeding frame has a first feeding part for receiving the corresponding assembly. The second feeding frame has a second feeding part, which is movably arranged so that when the base frame is in the feeding position, it can move to the feeding position to receive the corresponding assembly. as well as, A transfer mechanism is movably configured and driven to connect to the base frame, so that the base frame moves between the loading position and the unloading position; The length of the base frame is in the second direction, wherein: The first feeding rack is provided with two first hanging protrusions, which are arranged side by side at a distance in the second direction for jointly hanging the upper end of the corresponding assembly. The first feeding section includes the two first hanging protrusions; and / or, The second feeding rack is provided with two second hanging protrusions. The two second hanging protrusions are arranged side by side at intervals in the second direction and can move relative to each other. When the base frame is in the feeding position, it can move to the feeding position to jointly hang the upper end of the corresponding assembly. The second feeding part includes two second hanging protrusions. The second feeding rack includes: Two support rods are disposed at the top of the base frame, and the two support rods are arranged side by side at intervals in the second direction; and, Two feeding rods are arranged side by side in the second direction, and each feeding rod extends along the second direction. The two rotating ends of the two feeding rods that are opposite to each other are rotatably mounted on the two support rods along the extension axis of the first direction, so that when the base frame is in the feeding position, it can rotate to the feeding position. The two second hanging protrusions are located at the two opposite feeding ends of the two feeding rods; Each of the feeding rods is also provided with a stop protrusion on its rotating end, and the stop protrusion can rotate coaxially with the feeding rod; The assembly transfer device further includes two fixed frames located at the loading position. The two fixed frames are arranged side by side and spaced apart in the second direction to define a passage for the base frame to pass through. When the base frame moves to the loading position, the upper end face of each fixed frame is in contact with the lower end face of the corresponding stop protrusion. The upper end face of the fixed frame is provided with a driving inclined surface. In the first direction, the driving inclined surface is inclined downward toward one side of the base frame so that when the base frame moves to the loading position, it can push the stop protrusion to rotate, so that the unloading rod rotates to the unloading position. When two or more assemblies need to be transferred, the base frame moves to the loading position, the second loading part of the second loading rack moves to the loading position, and the loading robot sequentially places the assemblies on the first loading part and the second loading parts of each of the second loading racks.

2. The assembly transfer device according to claim 1, characterized in that, A support plate is also provided on the top of the base frame. The support plate is used to support the lower end of the support assembly. At least two clearance grooves are formed on the upper surface of the support plate. The two clearance grooves are arranged side by side and spaced apart in the first direction and correspond to the first feeding rack and the second feeding rack respectively. Each clearance groove is arranged through in the second direction to avoid accommodating the lower end of the assembly.

3. The assembly transfer device according to claim 1, characterized in that, A fixing mechanism is provided at the feeding position, the fixing mechanism comprising: A stop frame, disposed on one side of the base frame in the first direction, is provided to stop the base frame when it moves to the loading position; and, A fixing component is provided on the stop frame to relatively fix the stop frame and the base frame when the base frame moves to contact the stop frame.

4. The assembly transfer device according to claim 3, characterized in that, The fixing component includes a magnetic attraction structure and / or a clamping structure, wherein: The magnetic structure includes a magnetic suction part and a mating part. One of the magnetic suction part and the mating part is provided on the stop frame, and the other is correspondingly provided on the base frame, so that when the base frame moves to contact the stop frame, the stop frame and the base frame are magnetically fixed. The clamping structure includes a clamping part disposed on the stop frame. The clamping part is movably disposed so that when the base frame moves to contact the stop frame, it can move to clamp and fix the base frame.

5. The assembly transfer device according to claim 4, characterized in that, The length of the base frame is in the second direction; The clamping structure includes a gripper cylinder, the cylinder seat of which is disposed on the stop frame and its position is adjustable in the second direction; The clamping part includes two clamps of the clamping cylinder.

6. The assembly transfer device according to claim 3, characterized in that, The stop frame has an extension rod on the side facing the base frame, the extension rod extending along the first direction so as to be above the base frame when the base frame moves to contact the stop frame; The assembly transfer device further includes at least two assembly detectors, which are disposed on the extension rod and respectively correspond to the first feeding rack and the second feeding rack, for detecting whether there are assemblies on the first feeding rack and the second feeding rack.

7. The assembly transfer device according to claim 1, characterized in that, The base frame includes: The mounting frame is horizontally positioned; and, Four support columns are located at the bottom of the mounting frame and are set at the four corners of the mounting frame. Each support column is provided with a caster wheel at its bottom end. The transfer mechanism includes a traction trolley, which is located below the mounting frame and is driven to the mounting frame.

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