Modular group assembly production line

Abstract

The present invention discloses a modular group assembly production line, which includes a turnover conveyor line, a return conveyor line, and at least two assembly stations arranged in sequence along the turnover conveyor line; wherein the turnover conveyor line is used to convey production line tooling, and the turnover conveyor line has a starting end and an end end and is used to sequentially convey the production line tooling located at the starting end to each of the assembly stations and then convey the production line tooling to the end end; the return conveyor line is connected to the turnover conveyor line and is used to receive the production line tooling at the end of the turnover conveyor line and convey the received production line tooling to the starting end of the turnover conveyor line. The present invention can convey production line tooling in a circular flow, is more convenient to use, does not require manual handling, can reduce labor costs, and reduces the labor intensity of workers.

Description

Technical Field

[0001] The invention relates to a modular group assembly production line. Background Art

[0002] Currently, sheet metal chassis, with their advantages of light weight, high strength, and low cost, have gradually replaced die-cast chassis as the mainstream in the power industry. The assembly of sheet metal chassis requires the arrangement of several assembly stations within a certain production area according to the process flow and requirements. The chassis are then moved between these stations, with a single assembly team completing the corresponding assembly process at each station. However, some companies still rely on manual transportation of sheet metal chassis using tools such as carts to move them between assembly stations. This method not only has low turnover efficiency but also high labor costs.

[0003] In order to improve turnover efficiency and reduce labor costs, some companies choose to use conveyor lines to transport the sheet metal chassis to achieve turnover. When using the conveyor line for turnover, the accessories of the sheet metal chassis need to be placed in the production line tooling, and the conveyor line is used to transport the production line tooling between various assembly stations. For example, the Chinese patent with publication number CN215588413U discloses a production assembly line based on a medical CT machine control cabinet, which includes a conveyor frame (equivalent to a conveyor line). The conveyor frame connects multiple assembly stations together, and the production line tooling is placed on the conveyor frame so that the production line tooling can be transported and circulated between multiple assembly stations through the conveyor frame. However, the conveyor frame can only transport the production line tooling in one direction, and cannot transport the production line tooling in a circular flow. After the production line tooling is transported to the end of the conveyor frame, it is necessary to manually move the production line tooling at the end of the conveyor frame to the starting end of the conveyor frame, which is inconvenient to use, the labor cost is still high, and the labor intensity of the workers is high. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defects of the existing technology and provide a modular group assembly production line, which can transport the production line tooling in a circular flow, is more convenient to use, does not require manual handling, can reduce labor costs, and reduce the labor intensity of workers.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a modular group assembly production line, which includes a turnover conveyor line, a return conveyor line and at least two assembly stations arranged in sequence along the turnover conveyor line; wherein,

[0006] The turnover conveyor line is used to convey the production line tooling, and the turnover conveyor line has a starting end and an end end and is used to sequentially convey the production line tooling located at the starting end to each of the assembly stations and then convey the production line tooling to the end end;

[0007] The return conveyor line is connected to the turnover conveyor line and is used to receive the production line tooling at the end of the turnover conveyor line and transport the received production line tooling to the starting end of the turnover conveyor line.

[0008] A specific structure of the turnover conveyor line is further provided, and the turnover conveyor line includes a starting conveying mechanism, a transfer conveying mechanism, a main conveying mechanism, at least one assembly conveying mechanism, a first lifting conveying mechanism, a second lifting conveying mechanism, a third lifting conveying mechanism, and a fourth lifting conveying mechanism corresponding to the assembly conveying mechanism; wherein,

[0009] The starting conveying mechanism is used to receive the production line tooling sent from the return conveyor line and convey the production line tooling to one of the assembly stations;

[0010] The first lifting and conveying mechanism is installed on the starting conveying mechanism, and is used to lift the production line tooling on the starting conveying mechanism after lifting and then convey the lifted production line tooling to the second lifting and conveying mechanism;

[0011] The second lifting and conveying mechanism is installed on the transfer conveying mechanism, and is used to lower the production line tooling after receiving the production line tooling delivered by the first lifting and conveying mechanism so that the production line tooling falls on the transfer conveying mechanism;

[0012] The transfer conveying mechanism is used to convey the production line tooling to the third lifting conveying mechanism;

[0013] The third lifting conveying mechanism is connected to the main conveying mechanism, and is used to lower the production line tooling after receiving the production line tooling delivered by the transfer conveying mechanism so that the production line tooling falls onto the main conveying mechanism;

[0014] The main conveying mechanism is used to convey the production line tooling, and the main conveying mechanism is provided with a positioning position corresponding to the fourth lifting conveying mechanism;

[0015] The fourth lifting and conveying mechanism is installed on the main conveying mechanism, and is used to lift up the production line tooling at the corresponding positioning position and transport the lifted production line tooling to the corresponding assembly conveying mechanism. The fourth lifting and conveying mechanism is also used to receive the production line tooling sent by the corresponding assembly conveying mechanism and then lower it to allow the production line tooling to fall back onto the main conveying mechanism;

[0016] The assembly conveying mechanism corresponds to the assembly station and is used to receive the production line tooling delivered by the corresponding fourth lifting conveying mechanism and transport the production line tooling to the corresponding assembly station. The assembly conveying mechanism is also used to transport the production line tooling back to the corresponding fourth lifting conveying mechanism.

[0017] Furthermore, the turnover conveyor line further includes a terminal conveying mechanism, a fifth lifting conveying mechanism and a sixth lifting conveying mechanism; wherein,

[0018] The main conveying mechanism is further provided with a transfer position, and the positioning position is located in front of the transfer position in the conveying direction of the main conveying mechanism;

[0019] The fifth lifting and conveying mechanism is installed on the main conveying mechanism, and is used to lift up the production line tooling located in the transfer position and convey the lifted production line tooling to the sixth lifting and conveying mechanism;

[0020] The sixth lifting and conveying mechanism is installed on the terminal conveying mechanism, and is used to lower the production line tooling after receiving the production line tooling delivered by the fifth lifting and conveying mechanism so that the production line tooling falls on the terminal conveying mechanism;

[0021] The terminal conveying mechanism is used to convey the production line tooling to the return conveying line.

[0022] Furthermore, at least one of the first lifting conveying mechanism, the second lifting conveying mechanism, the third lifting conveying mechanism, the fourth lifting conveying mechanism, the fifth lifting conveying mechanism and the sixth lifting conveying mechanism respectively includes:

[0023] A fixing seat, wherein the fixing seat is fixedly arranged;

[0024] A lifting seat, the lifting seat being slidably connected to the fixed seat in an up-and-down direction;

[0025] at least one conveying assembly connected to the lifting base;

[0026] A lifting drive member, the lifting drive member is installed on the fixed base, the lifting drive member is connected to the lifting base and is used to drive the lifting base to rise and then drive the conveying assembly to rise to hold up the production line tooling;

[0027] A conveying drive member is installed on the lifting seat and connected to the conveying assembly and is used to drive the conveying assembly to move the production line tooling.

[0028] Furthermore, the lifting seat includes a bottom plate and a vertical plate corresponding to the conveying assembly;

[0029] The conveying assembly includes a conveyor belt and at least two pulleys;

[0030] The bottom plate is slidably connected to the fixing seat in the up-down direction;

[0031] The vertical plate is connected to the bottom plate;

[0032] The pulley is rotatably connected to the corresponding vertical plate;

[0033] The conveyor belt is connected to the pulley and is used to support the production line tooling;

[0034] The conveying drive is connected to the pulley and is used to drive the pulley to rotate and then drive the conveyor belt to move to convey the production line tooling.

[0035] Furthermore, the modular group assembly production line further includes a temporary storage conveying mechanism and a seventh lifting conveying mechanism corresponding to the temporary storage conveying mechanism; wherein,

[0036] The main conveying mechanism is provided with a temporary storage position corresponding to the seventh lifting conveying mechanism;

[0037] The seventh lifting and conveying mechanism is installed on the main conveying mechanism, and is used to lift up the production line tooling at the corresponding temporary storage position and transport the lifted production line tooling to the corresponding temporary storage conveying mechanism. The seventh lifting and conveying mechanism is also used to receive the production line tooling sent by the corresponding temporary storage conveying mechanism and then lower it to allow the production line tooling to fall back onto the main conveying mechanism;

[0038] The temporary storage conveying mechanism is used to receive the production line tooling delivered by the corresponding seventh lifting conveying mechanism, and to convey the production line tooling back to the seventh lifting conveying mechanism.

[0039] A specific structure of the return conveying line is further provided, wherein the return conveying line includes a first lifting mechanism, a second lifting mechanism and a slope conveying mechanism; wherein,

[0040] The slope conveying mechanism is provided between the first lifting mechanism and the second lifting mechanism, and the slope conveying mechanism is provided obliquely;

[0041] The first lifting mechanism is connected to the higher end of the slope conveying mechanism, and is used to receive the production line tooling at the end of the turnover conveying line and lift the received production line tooling and then transport it to the higher end of the slope conveying mechanism so that the production line tooling slides along the slope conveying mechanism to the lower end of the slope conveying mechanism;

[0042] The second lifting mechanism is connected to the lower end of the slope conveying mechanism. The second lifting mechanism is used to receive the production line tooling sent by the slope conveying mechanism and lift the production line tooling and then transport it to the starting end of the turnover conveying line.

[0043] A specific structure of the slope conveying mechanism is further provided, wherein the return conveying line further includes a fixing frame;

[0044] The ramp conveying mechanism includes a left side roller slide, a right side roller slide and at least one bottom roller slide;

[0045] The left side roller rail and the right side roller rail are both obliquely connected to the fixing frame, and a slope channel for the production line tooling to pass through is provided between the left side roller rail and the right side roller rail;

[0046] The bottom roller rail is obliquely connected to the fixing frame and is used to support the production line tooling in the slope channel.

[0047] Further providing a specific structure of the first lifting mechanism and the second lifting mechanism, the first lifting mechanism includes a first frame, a first conveying mechanism and a first driving mechanism; wherein,

[0048] The first conveying mechanism is connected to the first frame in an up-down sliding manner and has a receiving position and a feeding position during the sliding process. When the first conveying mechanism is at the receiving position, it is used to receive the production line tooling delivered from the end of the turnover conveyor line. When the first conveying mechanism is at the feeding position, it is used to convey the production line tooling to the higher end of the inclined conveying mechanism.

[0049] The first driving mechanism is connected to the first conveying mechanism and is used to drive the first conveying mechanism to move up and down between the material receiving position and the material feeding position;

[0050] The second lifting mechanism includes a second frame, a second conveying mechanism, a second driving mechanism and a material receiving mechanism; wherein,

[0051] The material receiving mechanism is connected to the second frame and is used to receive the production line tooling delivered by the slope conveying mechanism;

[0052] The second conveying mechanism is slidably connected to the second frame in an up-down direction and has an initial position during the sliding process. When the second conveying mechanism is at the initial position, the second conveying mechanism is located below the production line tooling on the material receiving mechanism.

[0053] The second driving mechanism is connected to the second conveying mechanism and is used to drive the second conveying mechanism to rise upward to lift the production line tooling on the material receiving mechanism. After the second conveying mechanism is raised into position, it is used to transport the lifted production line tooling to the starting end of the turnover conveyor line.

[0054] Further provided is a specific structure of the first driving mechanism and the second driving mechanism, wherein the first driving mechanism includes a first winding device, a first traction rope, at least one first end pulley, at least one second end pulley, at least one first top pulley and at least one second top pulley; wherein,

[0055] The first end pulley is rotatably connected to one end of the first conveying mechanism;

[0056] The second end pulley is rotatably connected to the other end of the first conveying mechanism;

[0057] The first top pulley and the second top pulley are both rotatably connected to the upper end portion of the first frame;

[0058] One end of the first traction rope is connected to the upper end of the first frame, and the first traction rope is sequentially connected to the first end pulley, the first top pulley, the second end pulley and the second top pulley and then connected to the first winding device;

[0059] The first winding device is connected to the first frame and is used to wind up the first traction rope to drive the first conveying mechanism to rise upward;

[0060] The second driving mechanism includes a second winding device, a second traction rope, at least one third end pulley, at least one fourth end pulley, at least one third top pulley and at least one fourth top pulley; wherein,

[0061] The third end pulley is rotatably connected to one end of the second conveying mechanism;

[0062] The fourth end pulley is rotatably connected to the other end of the second conveying mechanism;

[0063] The third top pulley and the fourth top pulley are both rotatably connected to the upper end of the second frame;

[0064] One end of the second traction rope is connected to the upper end of the second frame, and the second traction rope is sequentially connected to the third end pulley, the third top pulley, the fourth end pulley and the fourth top pulley and then connected to the second winding device;

[0065] The second winding device is connected to the second frame and is used to wind up the second traction rope to drive the second conveying mechanism to rise upward.

[0066] A specific structure of the first conveying mechanism and the second conveying mechanism is further provided, wherein the first conveying mechanism includes a first sliding frame and at least two first conveying rollers; wherein,

[0067] The first sliding frame is slidably connected to the first frame in an up-down direction;

[0068] The first conveying roller is rotatably connected to the first sliding frame, and the first conveying roller is used to carry the production line tooling and convey the production line tooling to move when rotating;

[0069] The second conveying mechanism includes a second sliding frame and at least two second conveying rollers; wherein,

[0070] The second sliding bracket is slidably connected to the second frame in an up-down direction;

[0071] The second conveying roller is rotatably connected to the second sliding frame, and the second conveying roller is used to carry the production line tooling and transport the production line tooling when rotating;

[0072] The material receiving mechanism includes at least one material receiving roller slide and a bracket corresponding to the material receiving roller slide;

[0073] The bracket is connected to the second frame;

[0074] The material receiving roller slide is connected to the bracket and is used to pass through the gap between adjacent second conveying rollers when the second conveying mechanism descends to the initial position.

[0075] Furthermore, an operating table and a material rack are provided in the assembly station, and the material rack includes a frame body, at least one feed slide mechanism, a transfer track corresponding to the feed slide mechanism, a discharge slide mechanism corresponding to the transfer track, and a swing drive member corresponding to the transfer track; wherein,

[0076] The feed slide rail mechanism and the discharge slide rail mechanism are both obliquely connected to the frame, and the feed slide rail mechanism is used to receive a material box containing accessories;

[0077] The transfer rail is swingably connected to the frame and has a feeding position and a discharging position during the swinging process. When the transfer rail swings to the feeding position, the transfer rail is connected with a lower end portion of the corresponding feeding slide rail mechanism so that the material box in the feeding slide rail mechanism slides into the corresponding transfer rail. When the transfer rail swings to the discharging position, the transfer rail is connected with a higher end portion of the corresponding discharging slide rail mechanism so that the material box in the transfer rail slides into the corresponding discharging slide rail mechanism.

[0078] The swing driving member is connected to the corresponding transfer rail and is used to drive the transfer rail to swing between the feeding position and the discharging position.

[0079] Furthermore, the feed slide rail mechanism is provided with at least one storage position for storing the material box, and the feed slide rail mechanism also includes a blocking mechanism corresponding to the storage position, the blocking mechanism is connected to the frame and is used to move to abut against the material box in the corresponding storage position to prevent the material box from sliding downward, and the blocking mechanism is also used to move to disengage from the abutment with the material box in the corresponding storage position to allow the material box to slide downward along the feed slide rail mechanism.

[0080] Furthermore, the feed rail mechanism is located above the corresponding discharge rail mechanism, and the inclination direction of the feed rail mechanism is opposite to the inclination direction of the discharge rail mechanism;

[0081] And / or the feed slide mechanism includes at least one first roller slide obliquely connected to the frame and used for carrying the material box;

[0082] And / or the discharge slide mechanism includes at least one second roller slide obliquely connected to the frame and used for carrying the material box;

[0083] And / or the transfer track includes a swing frame swingably connected to the frame body and at least one third roller slide rail connected to the swing frame.

[0084] Furthermore, the modular group assembly production line further includes a feeding vehicle, which includes a movable frame, a feeding slide mechanism corresponding to the feeding slide mechanism, and a recovery slide mechanism corresponding to the discharging slide mechanism; wherein,

[0085] The feeding slide rail mechanism and the recovery slide rail mechanism are both connected obliquely to the mobile frame, and a material box containing accessories is stored in the feeding slide rail mechanism;

[0086] The movable frame is used to move to dock with the frame body so that the lower end of the feeding slide mechanism is connected with the corresponding higher end of the feeding slide mechanism and the lower end of the discharging slide mechanism is connected with the corresponding higher end of the recovery slide mechanism;

[0087] The movable frame is also connected to a first docking mechanism corresponding to the feeding slide mechanism, the first docking mechanism being located at a lower side of the corresponding feeding slide mechanism, the first docking mechanism being used to block the material box in the corresponding feeding slide mechanism to prevent the material box from sliding when the movable frame moves to disengage from the docking with the frame body, and the first docking mechanism is also used to release the blocking of the material box in the feeding slide mechanism when the movable frame moves to dock with the frame body, so that the material box in the feeding slide mechanism slides into the corresponding feeding slide mechanism;

[0088] The frame is also connected to a second docking mechanism corresponding to the discharging slide rail mechanism, and the second docking mechanism is located on the lower side of the corresponding discharging slide rail mechanism. The second docking mechanism is used to block the material box in the corresponding discharging slide rail mechanism to prevent the material box from sliding when the mobile frame moves to disengage from the docking with the frame. The second docking mechanism is also used to release the blocking of the material box in the discharging slide rail mechanism when the mobile frame moves to dock with the frame, so that the material box in the discharging slide rail mechanism can slide into the corresponding recovery slide rail mechanism.

[0089] Further provided is a specific structure of the first docking mechanism and the second docking mechanism, wherein the frame is connected to a first crossbar corresponding to the first docking mechanism, and the first docking mechanism includes a first mounting plate, a first elastic member and a first sliding member; wherein,

[0090] The first mounting plate is connected to the movable frame and is located on a lower side of the corresponding feeding slide rail mechanism;

[0091] The first sliding member is slidably connected to the first mounting plate and has a first blocking position and a first passing position during the sliding process;

[0092] The first sliding component has a first baffle portion and a first slope portion;

[0093] One end of the first elastic member abuts against the first mounting plate, and the other end of the first elastic member abuts against the first sliding member. The first elastic member is used to drive the first sliding member to slide to the first blocking position so that the first baffle portion in the first sliding member extends into the corresponding feeding slide mechanism to block the material box in the feeding slide mechanism to prevent the material box from sliding off.

[0094] The first slope portion has a first inclined surface;

[0095] The first cross bar is used to abut against the first inclined surface during the docking process between the movable frame and the frame body and drive the first slope portion to move, thereby driving the entire first sliding component to compress the first elastic member and move to the first passing position so that the first baffle portion in the first sliding component exits the corresponding feeding slide mechanism;

[0096] The movable frame is connected to a second cross bar corresponding to the second docking mechanism, and the second docking mechanism includes a second mounting plate, a second elastic member and a second sliding member; wherein,

[0097] The second mounting plate is connected to the frame and is located on a lower side of the corresponding discharge slide rail mechanism;

[0098] The second sliding member is slidably connected to the second mounting plate and has a second blocking position and a second passing position during the sliding process;

[0099] The second sliding component has a second baffle portion and a second slope portion;

[0100] One end of the second elastic member abuts against the second mounting plate, and the other end of the second elastic member abuts against the second sliding component. The second elastic member is used to drive the second sliding component to slide to the second blocking position so that the second baffle portion in the second sliding component extends into the corresponding discharge slide mechanism to block the material box in the discharge slide mechanism to prevent the material box from sliding off.

[0101] The second slope portion has a second inclined surface;

[0102] The second cross bar is used to abut against the second inclined surface and drive the second slope portion to move during the docking process between the movable frame and the frame body, thereby driving the entire second sliding component to compress the second elastic component and move it to the second passing position so that the second baffle portion in the second sliding component exits the corresponding discharge slide rail mechanism.

[0103] Furthermore, the feeding slide rail mechanism is located above the corresponding recovery slide rail mechanism, and the inclination direction of the feeding slide rail mechanism is opposite to the inclination direction of the recovery slide rail mechanism;

[0104] and / or the feeding slide mechanism comprises at least one fourth roller slide obliquely connected to the mobile frame and used for carrying the material box;

[0105] And / or the recovery slide rail mechanism includes at least one fifth roller slide rail obliquely connected to the mobile frame and used for carrying the material box.

[0106] After adopting the above technical solution, the production line tooling is used to place various accessories and semi-finished products obtained by assembly, and workers can assemble the accessories and semi-finished products in the production line tooling at the assembly station. After using this modular group assembly production line, the turnover conveyor line can transport the production line tooling located at the starting end and the accessories in the production line tooling to each assembly station, and workers can assemble each accessory at the assembly station. After the production line tooling is transported to the end of the turnover conveyor line, the return conveyor line takes over the production line tooling at the end of the turnover conveyor line and transports the production line tooling to the starting end of the turnover conveyor line, thereby realizing the circular transportation and circulation of the production line tooling, which is more convenient to use and does not require manual labor to transport the production line tooling from the end of the turnover conveyor line to the starting end, thereby reducing labor costs and reducing the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0107] Figure 1 It is a structural schematic diagram of the modular group assembly production line of the present invention;

[0108] Figure 2 It is a structural schematic diagram of the turnover conveyor line of the present invention;

[0109] Figure 3 It is a structural schematic diagram of the starting conveying mechanism and the transfer conveying mechanism of the present invention;

[0110] Figure 4 It is a structural schematic diagram of the assembly conveying mechanism, the temporary storage conveying mechanism, the fourth lifting conveying mechanism and the seventh lifting conveying mechanism of the present invention;

[0111] Figure 5 It is a schematic structural diagram of the terminal conveying mechanism, the fifth lifting conveying mechanism and the sixth lifting conveying mechanism of the present invention;

[0112] Figure 6 Schematic diagram of the structures of the first lifting and conveying mechanism, the second lifting and conveying mechanism, the third lifting and conveying mechanism, the fourth lifting and conveying mechanism, the fifth lifting and conveying mechanism, the sixth lifting and conveying mechanism, and the seventh lifting and conveying mechanism of the present invention;

[0113] Figure 7 It is a structural schematic diagram of the positioning assembly of the present invention;

[0114] Figure 8 It is a structural schematic diagram of the reflux conveying line of the present invention;

[0115] Figure 9 It is a structural schematic diagram of the first lifting mechanism of the present invention;

[0116] Figure 10 Schematic diagram of the structure of the first conveying mechanism and the first driving mechanism of the present invention;

[0117] Figure 11 is a structural schematic diagram of the first driving mechanism of the present invention;

[0118] Figure 12 It is a structural schematic diagram of the second lifting mechanism of the present invention;

[0119] Figure 13 It is a structural schematic diagram of the operating table and material rack of the present invention;

[0120] Figure 14 This is a schematic structural diagram of the transfer track of the present invention when it is located at the feeding position;

[0121] Figure 15 This is a schematic structural diagram of the transfer track of the present invention when it is located at the discharge position;

[0122] Figure 16 It is a structural schematic diagram of the operating table, material rack and feeding vehicle of the present invention;

[0123] Figure 17 It is a structural schematic diagram of the feed slide mechanism, the feeding slide mechanism and the first docking mechanism of the present invention;

[0124] Figure 18 is a side view of the first docking mechanism of the present invention;

[0125] Figure 19 This is an exploded view of the assembly of the first docking mechanism of the present invention. DETAILED DESCRIPTION

[0126] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments in conjunction with the accompanying drawings.

[0127] like Figure 1 、 2 , 3, 4, 5, 8, a modular group assembly production line, which includes a turnover conveyor line 100, a return conveyor line 200 and at least two assembly stations 300 arranged in sequence along the turnover conveyor line 100; wherein,

[0128] The turnover conveyor line 100 is used to convey the production line tooling 1. The turnover conveyor line 100 has a starting end and an end end and is used to sequentially convey the production line tooling 1 located at the starting end to each of the assembly stations 300 and then convey the production line tooling 1 to the end end.

[0129] The return conveyor line 200 is connected to the turnover conveyor line 100 and is used to receive the production line tooling 1 at the end of the turnover conveyor line 100 and transport the received production line tooling 1 to the starting end of the turnover conveyor line 100. Specifically, the production line tooling 1 is used to place various accessories and semi-finished products obtained by assembly, and workers can assemble the accessories and semi-finished products in the production line tooling 1 at the assembly station 300. More specifically, the modular group assembly production line of the embodiment of the present application is used to assemble and produce sheet metal chassis, and the accessories are all accessories of the sheet metal chassis.

[0130] After using this modular group assembly production line, the turnover conveyor line 100 can transport the production line tooling 1 located at the starting end and the accessories in the production line tooling 1 to each assembly station 300, and workers can assemble the various accessories in the assembly station 300. After the production line tooling 1 is transported to the end of the turnover conveyor line 100, the return conveyor line 200 takes over the production line tooling 1 at the end of the turnover conveyor line 100 and transports the production line tooling 1 to the starting end of the turnover conveyor line 100, thereby realizing the circular conveying and circulation of the production line tooling 1, which is more convenient to use. There is no need to rely on manual labor to move the production line tooling 1 from the end of the turnover conveyor line 100 to the starting end, which reduces labor costs and reduces the labor intensity of workers.

[0131] like Figures 1 to 6 As shown, the turnover conveyor line 100 has, for example but not limited to, the following structure, which includes a starting conveying mechanism 2, a transfer conveying mechanism 3, a main conveying mechanism 4, at least one assembly conveying mechanism 5, a first lifting conveying mechanism 6, a second lifting conveying mechanism 7, a third lifting conveying mechanism 8, and a fourth lifting conveying mechanism 9 corresponding to the assembly conveying mechanism 5; wherein,

[0132] The starting conveying mechanism 2 is used to receive the production line tooling 1 sent from the return conveying line 200 and convey the production line tooling 1 to one of the assembly stations 300;

[0133] The first lifting and conveying mechanism 6 is installed on the starting conveying mechanism 2. The first lifting and conveying mechanism 6 is used to lift the production line tooling 1 on the starting conveying mechanism 2 and then convey the lifted production line tooling 1 to the second lifting and conveying mechanism 7.

[0134] The second lifting and conveying mechanism 7 is installed on the transfer conveying mechanism 3. The second lifting and conveying mechanism 7 is used to receive the production line tooling 1 delivered by the first lifting and conveying mechanism 6 and then descend so that the production line tooling 1 falls on the transfer conveying mechanism 3.

[0135] The transfer conveying mechanism 3 is used to convey the production line tooling 1 to the third lifting conveying mechanism 8;

[0136] The third lifting conveying mechanism 8 is connected to the main conveying mechanism 4. The third lifting conveying mechanism 8 is used to lower the production line tooling 1 delivered by the transfer conveying mechanism 3 so that the production line tooling 1 falls on the main conveying mechanism 4;

[0137] The main conveying mechanism 4 is used to convey the production line tooling 1 to move, and the main conveying mechanism 4 is provided with a positioning position corresponding to the fourth lifting conveying mechanism 9;

[0138] The fourth lifting and conveying mechanism 9 is installed on the main conveying mechanism 4. The fourth lifting and conveying mechanism 9 is used to lift up the production line tooling 1 at the corresponding positioning position and convey the lifted production line tooling 1 to the corresponding assembly conveying mechanism 5. The fourth lifting and conveying mechanism 9 is also used to receive the production line tooling 1 delivered by the corresponding assembly conveying mechanism 5 and then lower it to allow the production line tooling 1 to fall back onto the main conveying mechanism 4.

[0139] The assembly conveying mechanism 5 corresponds to the assembly station 300 and is used to receive the production line tooling 1 delivered by the corresponding fourth lifting conveying mechanism 9 and transport the production line tooling 1 to the corresponding assembly station 300. The assembly conveying mechanism 5 is also used to transport the production line tooling 1 back to the corresponding fourth lifting conveying mechanism 9.

[0140] like Figures 1 to 6 As shown, the turnover conveyor line 100 may further include a terminal conveying mechanism 10, a fifth lifting conveying mechanism 11 and a sixth lifting conveying mechanism 12; wherein,

[0141] The main conveying mechanism 4 is further provided with a transfer position. The positioning position is located in front of the transfer position in the conveying direction of the main conveying mechanism 4. That is, when the main conveying mechanism 4 conveys the production line tooling 1, the production line tooling 1 will first pass through all the positioning positions and then be conveyed to the transfer position.

[0142] The fifth lifting and conveying mechanism 11 is installed on the main conveying mechanism 4, and is used to lift the production line tooling 1 located in the transfer position and then convey the lifted production line tooling 1 to the sixth lifting and conveying mechanism 12;

[0143] The sixth lifting and conveying mechanism 12 is installed on the terminal conveying mechanism 10. The sixth lifting and conveying mechanism 12 is used to lower the production line tooling 1 after receiving the production line tooling 1 delivered by the fifth lifting and conveying mechanism 11 so that the production line tooling 1 falls on the terminal conveying mechanism 10;

[0144] The terminal conveying mechanism 10 is used to convey the production line tooling 1 to the return conveying line 200 .

[0145] In this embodiment, the starting conveying mechanism 2 is used to convey the production line tooling 1 to the first assembly station 300, which is the assembly station 300 located at the front end in the conveying direction of the main conveying mechanism 4. Except for the first assembly station 300, each assembly station 300 corresponds to one of the assembly conveying mechanisms 5.

[0146] In this embodiment, there are three assembly stations 300. Taking the three assembly stations 300 as an example, the workflow of the turnover conveyor line 100 is described as follows: first, the return conveyor line 200 conveys an empty production line tool 1 to the starting conveyor mechanism 2. The starting conveyor mechanism 2 conveys the production line tool 1 to the first assembly station 300. The worker in the first assembly station 300 performs the first assembly process and places the assembled semi-finished product into the production line tool 1 on the starting conveyor mechanism 2. Then, the first lifting conveyor mechanism 6 lifts and lifts the production line tool 1 on the starting conveyor mechanism 2 and conveys the production line tool 1 to the second lifting conveyor mechanism 7. The second lifting conveyor mechanism 7 descends to allow the production line tool 1 to land on the transfer conveyor mechanism 3. The transfer conveyor mechanism 3 conveys the production line tool 1 to the third lifting conveyor mechanism 8. Then, the third lifting conveyor mechanism 8 descends to allow the production line tool 1 to land on the main conveyor mechanism 4.

[0147] The main conveying mechanism 4 then conveys the production line tooling 1 to the first positioning position, and then the corresponding fourth lifting conveying mechanism 9 rises to lift the production line tooling 1 in the first positioning position and conveys the lifted production line tooling 1 to the corresponding assembly conveying mechanism 5. The assembly conveying mechanism 5 then conveys the production line tooling 1 to the second assembly station 300. The worker in the second assembly station 300 takes the semi-finished product from the production line tooling 1 for the second assembly process. After assembly is completed, the semi-finished product is placed back into the production line tooling 1. The corresponding assembly conveying mechanism 5 then conveys the production line tooling 1 back to the corresponding fourth lifting conveying mechanism 9, which then descends to allow the production line tooling 1 to fall back into the first positioning position.

[0148] Then the main conveying mechanism 4 continues to convey the production line tooling 1 to transport the production line tooling 1 to the second positioning position, and then the corresponding fourth lifting conveying mechanism 9 rises to support the production line tooling 1 in the second positioning position and transports the supported production line tooling 1 to the corresponding assembly conveying mechanism 5. The assembly conveying mechanism 5 transports the production line tooling 1 to the third assembly station 300. The workers in the third assembly station 300 take the semi-finished products in the production line tooling 1 to perform the third assembly process. After the assembly is completed, the finished product is obtained. The workers place the finished product on a dedicated pallet without putting the finished product back into the production line tooling 1. Then the assembly conveying mechanism 5 corresponding to the third assembly station 300 transports the empty production line tooling 1 to the corresponding fourth lifting conveying mechanism 9. The fourth lifting conveying mechanism 9 descends again to allow the empty production line tooling 1 to fall back to the second positioning position, and then the main conveying mechanism 4 transports the empty production line tooling 1 to the transfer position.

[0149] Then, the fifth lifting conveyor mechanism 11 rises and lifts the production line tooling 1 in the transfer position, and transfers the lifted production line tooling 1 to the sixth lifting conveyor mechanism 12. The sixth lifting conveyor mechanism 12 receives the production line tooling 1 delivered by the fifth lifting conveyor mechanism 11 and then descends to allow the production line tooling 1 to land on the terminal conveyor mechanism 10. The terminal conveyor mechanism 10 then transfers the production line tooling 1 to the return conveyor line 200.

[0150] Among them, the starting end of the entire turnover conveyor line 100 is the starting conveying mechanism 2, and the end of the entire turnover conveyor line 100 is the end conveying mechanism 10. The starting conveying mechanism 2, the transfer conveying mechanism 3, the main conveying mechanism 4, the assembly conveying mechanism 5 and the end conveying mechanism 10 can be installed with position sensors to sense the position of the production line tooling 1.

[0151] like Figure 6 As shown, at least one of the first lifting conveying mechanism 6, the second lifting conveying mechanism 7, the third lifting conveying mechanism 8, the fourth lifting conveying mechanism 9, the fifth lifting conveying mechanism 11 and the sixth lifting conveying mechanism 12 respectively includes:

[0152] A fixing seat 13, wherein the fixing seat 13 is fixedly arranged;

[0153] A lifting seat 14, wherein the lifting seat 14 is slidably connected to the fixed seat 13 in an up-down direction;

[0154] At least one conveying assembly 15, wherein the conveying assembly 15 is connected to the lifting base 14;

[0155] A lifting drive 16 , which is mounted on the fixed base 13 , is connected to the lifting base 14 and is used to drive the lifting base 14 upwards, thereby driving the conveying assembly 15 upwards to lift the production line tooling 1 ;

[0156] A conveying drive component is installed on the lifting seat 14 and is connected to the conveying component 15 and is used to drive the conveying component 15 to move the production line tooling 1.

[0157] Specifically, in the fourth lifting and conveying mechanism 9, the lifting drive 16 drives the lifting seat 14 to rise, thereby driving the conveying assembly 15 to rise to lift the production line tooling 1 in the positioning position, and then the conveying drive drives the conveying assembly 15 to move to convey the production line tooling 1 to the corresponding assembly conveying mechanism 5. More specifically, in the fourth lifting and conveying mechanism 9, when the lifting drive 16 drives the lifting seat 14 to descend, it can drive the conveying assembly 15 to descend, thereby allowing the lifted production line tooling 1 to fall onto the main conveying mechanism 4. The lifting drive 16 can be a lifting cylinder, which is connected to the fixed seat 13 and connected to the lifting seat 14. The lifting seat 14 is slidably connected to the fixed seat 13 through a plurality of guide shafts 17, thereby preventing the lifting seat 14 from tipping over.

[0158] like Figure 6 As shown, the lifting seat 14 may include a bottom plate 18 and a vertical plate 19 corresponding to the conveying assembly 15;

[0159] The conveying assembly 15 includes a conveyor belt 20 and at least two pulleys 21;

[0160] The bottom plate 18 is slidably connected to the fixing seat 13 in the up-down direction;

[0161] The vertical plate 19 is connected to the bottom plate 18;

[0162] The pulley 21 is rotatably connected to the corresponding vertical plate 19;

[0163] The conveyor belt 20 is connected to the pulley 21 and is used to support the production line tooling 1;

[0164] The conveying drive is connected to the pulley 21 and is used to drive the pulley 21 to rotate and thereby drive the conveyor belt 20 to move to convey the production line tooling 1; in this embodiment, there are two of each of the vertical plate 19 and the conveying assembly 15, and the conveying assembly 15 corresponds one-to-one with the vertical plate 19 and is installed on the corresponding vertical plate 19. The starting conveying mechanism 2, the transfer conveying mechanism 3, the main conveying mechanism 4, the assembly conveying mechanism 5 and the terminal conveying mechanism 10 can all be roller conveying mechanisms, and the roller conveying mechanism includes a frame and a plurality of conveying rollers; wherein, the vertical plate 19 and the conveying assembly 15 are used to pass through the gap between the conveying rollers and thereby lift the production line tooling 1, and the fixed seat 13 is used to be fixedly connected to the corresponding frame. Specifically, the specific structure of the roller conveying mechanism is an existing technology well known to those skilled in the art and will not be described in detail in this embodiment.

[0165] like Figure 6As shown, the conveying drive member includes a conveying motor and a drive shaft 22. The drive shaft 22 is rotatably connected to the base plate 18 and connected to the pulley 21. The conveying motor is connected to the base plate 18 and is in transmission connection with the drive shaft 22. The conveying motor drives the drive shaft 22 to rotate, thereby driving the pulley 21 to rotate, and further driving the conveyor belt 20. The vertical plate 19 is also connected to a support block 23 for supporting the conveyor belt 20.

[0166] like Figure 1 、 2 As shown in , 4, and 6, the modular group assembly production line may further include a temporary storage conveying mechanism 24 and a seventh lifting conveying mechanism 25 corresponding to the temporary storage conveying mechanism 24; wherein,

[0167] The main conveying mechanism 4 is provided with a temporary storage position corresponding to the seventh lifting conveying mechanism 25;

[0168] The seventh lifting and conveying mechanism 25 is installed on the main conveying mechanism 4. The seventh lifting and conveying mechanism 25 is used to lift up the production line tooling 1 at the corresponding temporary storage position and convey the lifted production line tooling 1 to the corresponding temporary storage conveying mechanism 24. The seventh lifting and conveying mechanism 25 is also used to receive the production line tooling 1 delivered by the corresponding temporary storage conveying mechanism 24 and then lower it to allow the production line tooling 1 to fall back onto the main conveying mechanism 4.

[0169] The temporary storage conveying mechanism 24 is used to receive the production line tooling 1 delivered by the corresponding seventh lifting conveying mechanism 25, and to convey the production line tooling 1 back to the seventh lifting conveying mechanism 25; in this embodiment, the temporary storage conveying mechanism 24 corresponds one-to-one to the seventh lifting conveying mechanism 25; in the conveying direction of the main conveying mechanism 4, two temporary storage conveying mechanisms 24 are provided in front of each of the assembly conveying mechanisms 5.

[0170] Specifically, when one of the production line tools 1 is parked in the assembly conveyor mechanism 5, the remaining production line tools 1 on the main conveyor mechanism 4 can be temporarily transported to the temporary storage conveyor mechanism 24 for temporary storage. After the production line tools 1 in the assembly conveyor mechanism 5 are sent away, the production line tools 1 in the temporary storage conveyor mechanism 24 are transported to the main conveyor mechanism 4 and then to the assembly conveyor mechanism 5, thereby achieving a good production rhythm and avoiding the rhythm mismatch problem between multiple processes. More specifically, the temporary storage conveyor mechanism 24 is also a roller conveyor mechanism, and the seventh lifting conveyor mechanism 25 has the same structure as the fourth lifting conveyor mechanism 9, and the installation method and working principle are also the same.

[0171] like Figure 4 、 5As shown in Figures 7 and 8, the terminal conveying mechanism 10 is provided with at least one waiting position for storing the production line tooling 1. Positioning assemblies are respectively provided in the positioning position, the temporary storage position, the transfer position, and the waiting position. The positioning assembly includes a positioning cylinder 26 and a positioning baffle 27. The positioning cylinder 26 is fixedly arranged, and the positioning baffle 27 is connected to the positioning cylinder 26. The positioning cylinder 26 is used to drive the positioning baffle 27 to rise so that the positioning baffle 27 blocks the production line tooling 1 and thus accurately stops the production line tooling 1 at the corresponding position; when the positioning cylinder 26 drives the positioning baffle 27 to lower, the production line tooling 1 can smoothly pass through the corresponding position.

[0172] like Figure 1 、 8 As shown in Figures 9 and 12, the reflux conveying line 200 may be, for example but not limited to, the following structure, which includes a first lifting mechanism 400, a second lifting mechanism 500, and a slope conveying mechanism 600; wherein,

[0173] The slope conveying mechanism 600 is provided between the first lifting mechanism 400 and the second lifting mechanism 500, and the slope conveying mechanism 600 is provided at an angle;

[0174] The first lifting mechanism 400 is connected to the higher end of the inclined conveying mechanism 600. The first lifting mechanism 400 is used to receive the production line tooling 1 at the end of the turnover conveying line 100, lift the received production line tooling 1, and then transport it to the higher end of the inclined conveying mechanism 600 so that the production line tooling 1 slides along the inclined conveying mechanism 600 to the lower end of the inclined conveying mechanism 600.

[0175] The second lifting mechanism 500 is connected to the lower end of the inclined conveying mechanism 600. The second lifting mechanism 500 is used to receive the production line tooling 1 delivered by the inclined conveying mechanism 600, lift the production line tooling 1, and then transport it to the starting end of the turnover conveyor line 100. Specifically, the first lifting mechanism 400 is used to receive the production line tooling 1 delivered by the terminal conveying mechanism 10, and the second lifting mechanism 500 is used to transport the production line tooling 1 to the starting conveying mechanism 2. In this embodiment, the inclined conveying mechanism 600 has the advantage of low cost and uses gravity for transportation, so the cost of use is also low.

[0176] like Figure 1 、 8 As shown in Figure 12, the return conveying line 200 may further include a fixing frame 28;

[0177] The ramp conveying mechanism 600 may be, for example but not limited to, the following structure, which includes a left side roller rail 29, a right side roller rail 30 and at least one bottom roller rail 31;

[0178] The left side roller rail 29 and the right side roller rail 30 are both obliquely connected to the fixing frame 28, and a slope passage for the production line tooling 1 to pass through is provided between the left side roller rail 29 and the right side roller rail 30;

[0179] The bottom roller rail 31 is connected obliquely to the fixed frame 28 and is used to support the production line tooling 1 in the inclined channel. Specifically, because the left side roller rail 29, the right side roller rail 30, and the bottom roller rail 31 are all inclined, the production line tooling 1 can slide downward obliquely under the action of gravity without the need for power. In this embodiment, the left side roller rail 29, the right side roller rail 30, and the bottom roller rail 31 are all smooth bars.

[0180] The inclined conveying mechanism 600 is provided with at least one cache position for storing the production line tooling 1. Specifically, when one of the production line tooling 1 is parked in the first lifting mechanism 400, the remaining production line tooling 1 in the terminal conveying mechanism 10 is temporarily parked in the waiting position. When one of the production line tooling 1 is parked in the second lifting mechanism 500, the remaining production line tooling 1 in the inclined conveying mechanism 600 is parked in the cache position and is waiting. More specifically, the cache position is provided with a blocking component connected to the fixed frame 28. The blocking component is used to move to abut against the production line tooling 1 in the corresponding cache position to prevent the production line tooling 1 from sliding downward. The blocking component is also used to move to disengage from the abutment with the production line tooling 1 in the corresponding cache position to allow the production line tooling 1 to slide downward along the inclined conveying mechanism 600 into the second lifting mechanism 500. In this embodiment, the material blocking component includes a material blocking cylinder 32, and a material blocking rod is connected to the material blocking cylinder 32. When the material blocking cylinder 32 is extended, the material blocking rod blocks the production line tooling 1 and prevents the production line tooling 1 from sliding downward. When the material blocking cylinder 32 is retracted, the material blocking rod also retracts and disengages from the production line tooling 1, and then the production line tooling 1 slides obliquely downward along the inclined conveying mechanism 600 under the action of gravity. In this embodiment, the material blocking cylinders 32 correspond one-to-one to the buffer positions.

[0181] like Figures 8-11 As shown, the first lifting mechanism 400 is, for example but not limited to, the following structure, which includes a first frame 33, a first conveying mechanism 34 and a first driving mechanism 35; wherein,

[0182] The first conveying mechanism 34 is slidably connected to the first frame 33 in the up-down direction and has a receiving position and a feeding position during the sliding process. When the first conveying mechanism 34 is at the receiving position, it is used to receive the production line tooling 1 delivered from the end of the turnover conveyor line 100. When the first conveying mechanism 34 is at the feeding position, it is used to convey the production line tooling 1 to the higher end of the inclined conveying mechanism 600.

[0183] The first driving mechanism 35 is connected to the first conveying mechanism 34 and is used to drive the first conveying mechanism 34 to move up and down between the material receiving position and the material feeding position; in this embodiment, the material receiving position is located below the material feeding position, and the conveying direction of the first conveying mechanism 34 is the same as the conveying direction of the slope conveying mechanism 600; specifically, when the first conveying mechanism 34 is located at the material receiving position, the first conveying mechanism 34 is connected with the end conveying mechanism 10, and when the first conveying mechanism 34 is located at the material feeding position, the first conveying mechanism 34 is connected with the slope conveying mechanism 600.

[0184] like Figure 8 、 12 As shown, the second lifting mechanism 500 is, for example but not limited to, the following structure, which includes a second frame 36, a second conveying mechanism 37, a second driving mechanism 38 and a material receiving mechanism 39; wherein,

[0185] The material receiving mechanism 39 is connected to the second frame 36 and is used to receive the production line tooling 1 delivered by the slope conveying mechanism 600;

[0186] The second conveying mechanism 37 is slidably connected to the second frame 36 in the up-down direction and has an initial position during the sliding process. When the second conveying mechanism 37 is at the initial position, the second conveying mechanism 37 is located below the production line tooling 1 on the material receiving mechanism 39;

[0187] The second drive mechanism 38 is connected to the second conveying mechanism 37 and is used to drive the second conveying mechanism 37 upward to lift the production line tooling 1 on the material receiving mechanism 39. After the second conveying mechanism 37 is raised into position, it is used to transport the lifted production line tooling 1 to the starting end of the turnover conveyor line 100. In this embodiment, the conveying direction of the second conveying mechanism 37 is perpendicular to the conveying direction of the inclined conveying mechanism 600; specifically, when the second conveying mechanism 37 is raised into position, the second conveying mechanism 37 is connected to the starting conveying mechanism 2.

[0188] like Figures 9-12As shown, the first driving mechanism 35 may be, for example but not limited to, the following structure, which includes a first winding device, a first traction rope 40, at least one first end pulley 41, at least one second end pulley 42, at least one first top pulley 43 and at least one second top pulley 44; wherein,

[0189] The first end pulley 41 is rotatably connected to one end of the first conveying mechanism 34;

[0190] The second end pulley 42 is rotatably connected to the other end of the first conveying mechanism 34;

[0191] The first top pulley 43 and the second top pulley 44 are both rotatably connected to the upper end of the first frame 33;

[0192] One end of the first traction rope 40 is connected to the upper end of the first frame 33. The first traction rope 40 is sequentially connected to the first end pulley 41, the first top pulley 43, the second end pulley 42 and the second top pulley 44 and then connected to the first winding device.

[0193] The first winding device is connected to the first frame 33 and is used to wind up the first traction rope 40 to drive the first conveying mechanism 34 to rise upward. In this embodiment, there are three first end pulleys 41, five first top pulleys 43, two second end pulleys 42, and two second top pulleys 44.

[0194] The second driving mechanism 38 is, for example but not limited to, the following structure, which includes a second winding device, a second traction rope, at least one third end pulley, at least one fourth end pulley, at least one third top pulley and at least one fourth top pulley; wherein,

[0195] The third end pulley is rotatably connected to one end of the second conveying mechanism 37;

[0196] The fourth end pulley is rotatably connected to the other end of the second conveying mechanism 37;

[0197] The third top pulley and the fourth top pulley are both rotatably connected to the upper end of the second frame 36;

[0198] One end of the second traction rope is connected to the upper end of the second frame 36, and the second traction rope is sequentially connected to the third end pulley, the third top pulley, the fourth end pulley and the fourth top pulley and then connected to the second winding device;

[0199] The second reel is connected to the second frame 36 and is used to reel in the second traction rope to drive the second conveying mechanism 37 upward. In this embodiment, there are three third end pulleys, five third top pulleys, two fourth end pulleys, and two fourth top pulleys. The first and second reel devices each include a rotatable drum 45 and a reduction motor 46 for driving the drum 45.

[0200] Specifically, the first end pulley 41, the second end pulley 42, the third end pulley, the fourth end pulley, the first top pulley 43, the second top pulley 44, the third top pulley and the fourth top pulley are respectively fixed by means of cantilever pins and retaining springs, thereby avoiding jamming and displacement during rotation.

[0201] More specifically, the above-described structures of the first drive mechanism 35 and the second drive mechanism 38 offer the advantages of uniform force distribution and high synchronization. Furthermore, the first lifting mechanism 400 is equipped with a position sensor to sense the position of the first conveying mechanism 34, thereby ensuring accurate start and stop, and smooth lifting and lowering of the first conveying mechanism 34. The second lifting mechanism 500 is also equipped with a position sensor to sense the position of the second conveying mechanism 37, thereby ensuring accurate start and stop, and smooth lifting and lowering of the second conveying mechanism 37.

[0202] like Figures 8-12 As shown, the first conveying mechanism 34 may include a first sliding frame 47 and at least two first conveying rollers 48; wherein,

[0203] The first sliding frame 47 is slidably connected to the first frame 33 in the up-down direction;

[0204] The first conveying roller 48 is rotatably connected to the first sliding frame 47. The first conveying roller 48 is used to carry the production line tooling 1 and convey the production line tooling 1 while rotating.

[0205] The second transport mechanism 37 may include a second sliding frame 49 and at least two second transport rollers 50; wherein,

[0206] The second sliding frame 49 is slidably connected to the second frame 36 in the up-down direction;

[0207] The second conveying roller 50 is rotatably connected to the second sliding frame 49. The second conveying roller 50 is used to carry the production line tooling 1 and transport the production line tooling 1 while rotating. In this embodiment, the first conveying roller 48 and the second conveying roller 50 are both electric rollers. The electric roller is preferably a 24V DC brushless roller. Its specific structure is an existing technology well known to those skilled in the art and will not be described in detail in this embodiment. Specifically, the first conveying roller 48 is used to receive the production line tooling 1 delivered from the end of the turnover conveyor line 100 while rotating and to transport the production line tooling 1 to the higher end of the inclined conveying mechanism 600. The second conveying roller 50 is used to lift the production line tooling 1 on the material receiving mechanism 39 and to transport the lifted production line tooling 1 to the starting end of the turnover conveyor line 100.

[0208] like Figure 12 As shown, the material receiving mechanism 39 may have, for example but not limited to, the following structure, which includes at least one material receiving roller slide 51 and a bracket 52 corresponding to the material receiving roller slide 51;

[0209] The bracket 52 is connected to the second frame 36;

[0210] The material receiving roller slide 51 is connected to the bracket 52 and is used to pass through the gap between adjacent second conveying rollers 50 when the second conveying mechanism 37 descends to the initial position, thereby causing the second conveying roller 50 to descend below the material receiving roller slide 51, and then when the second conveying roller 50 is raised, it can lift the production line tooling 1 carried on the material receiving roller slide 51; specifically, the material receiving roller slide 51 is a smooth strip.

[0211] like Figure 1 、 2 , 13 to 17, the assembly station 300 may be provided with an operating table 53 and a material rack 700, and the material rack 700 may have, for example but not limited to, the following structure, which includes a frame 54, at least one feed slide mechanism 55, a transfer track 56 corresponding to the feed slide mechanism 55, a discharge slide mechanism 57 corresponding to the transfer track 56, and a swing drive member 58 corresponding to the transfer track 56; wherein,

[0212] The feed rail mechanism 55 and the discharge rail mechanism 57 are both connected obliquely to the frame 54 , and the feed rail mechanism 55 is used to receive a material box 59 containing accessories;

[0213] The transfer rail 56 is swingably connected to the frame 54 and has a feeding position and a discharging position during the swinging process. When the transfer rail 56 swings to the feeding position, the transfer rail 56 is connected with the lower end of the corresponding feeding slide mechanism 55 so that the material box 59 in the feeding slide mechanism 55 slides into the corresponding transfer rail 56. When the transfer rail 56 swings to the discharging position, the transfer rail 56 is connected with the higher end of the corresponding discharging slide mechanism 57 so that the material box 59 in the transfer rail 56 slides into the corresponding discharging slide mechanism 57.

[0214] The swing drive member 58 is connected to the corresponding transfer rail 56 and is used to drive the transfer rail 56 to swing between the feed position and the discharge position. Specifically, because the feed rail mechanism 55 and the discharge rail mechanism 57 are both inclined, the material bin 59 slides downwardly and tilted in both the feed rail mechanism 55 and the discharge rail mechanism 57 under the action of gravity. More specifically, when the transfer rail 56 is in the feed position, the tilt direction of the transfer rail 56 is consistent with that of the feed rail mechanism 55. When the transfer rail 56 is in the discharge position, the tilt direction of the transfer rail 56 is consistent with that of the discharge rail mechanism 57. First, the swing drive member 58 drives the transfer rail 56 to swing to the feed position. The full material bin 59 stored in the feed rail mechanism 55 slides into the transfer rail 56 under the action of gravity. At this point, the staff can remove the parts in the material bin 59 and place them on the operating table 53 for assembly, thereby making the assembly operation more convenient. When all the parts in the bin 59 on the transfer track 56 are removed, the swing drive 58 drives the transfer track 56 to swing to the discharge position, so that the empty bin 59 in the transfer track 56 slides under gravity into the corresponding discharge slide mechanism 57 for storage. The frame 54 can be constructed of third-generation aluminum profile lean tubes.

[0215] like Figure 14 、 15As shown in Figure 17, at least one storage position for storing the material box 59 is provided in the feed slide mechanism 55, and the feed slide mechanism 55 also includes a blocking mechanism 60 corresponding to the storage position, the blocking mechanism 60 is connected to the frame 54 and is used to move to abut against the material box 59 in the corresponding storage position to prevent the material box 59 from sliding downward, and the blocking mechanism 60 is also used to move to disengage from the abutment with the material box 59 in the corresponding storage position to allow the material box 59 to slide downward along the feed slide mechanism 55; specifically, the blocking mechanism 60 includes a blocking cylinder, and a blocking rod is connected to the blocking cylinder. When the blocking cylinder is extended, the blocking rod blocks the material box 59 and prevents the material box 59 from sliding downward. When the blocking cylinder is retracted, the blocking rod is also retracted and disengaged from the abutment with the material box 59, and then the material box 59 slides obliquely downward along the feed slide mechanism 55 under the action of gravity.

[0216] In this embodiment, the feed slide mechanism 55 is located above the corresponding discharging slide mechanism 57, and the inclination direction of the feed slide mechanism 55 is opposite to the inclination direction of the discharging slide mechanism 57; the feed slide mechanism 55 includes at least one first roller slide 61 obliquely connected to the frame 54 and used to carry the material box 59; the discharging slide mechanism 57 includes at least one second roller slide 62 obliquely connected to the frame 54 and used to carry the material box 59; the transfer rail 56 includes a swing frame 63 swingably connected to the frame 54 and at least one third roller slide 64 connected to the swing frame 63. In this embodiment, the swing drive member 58 is a swing cylinder, one end of which is hinged on the frame 54, and the other end of which is hinged to the corresponding swing frame 63; the first roller slide 61, the second roller slide 62, and the third roller slide 64 are all smooth strips; the blocking cylinder and the swing cylinder can be controlled by a PLC controller, and the operating parameters can be adjusted according to the difference in employee operating speed through click operation on the touch screen, which is more versatile. In this embodiment, the feed slide mechanism 55, the discharging slide mechanism 57, and the transfer track 56 are respectively provided with three, the feed slide mechanism 55 includes two or more first roller slides 61, the discharging slide mechanism 57 includes two or more second roller slides 62, and the transfer track 56 includes two or more third roller slides 64.

[0217] like Figures 13-19 As shown, the modular group assembly production line may further include a feeding vehicle, which may have, for example but not limited to, the following structure, comprising a moving frame 65, a feeding slide mechanism 66 corresponding to the feeding slide mechanism 55, and a recovery slide mechanism 67 corresponding to the discharging slide mechanism 57; wherein,

[0218] The feeding slide mechanism 66 and the recovery slide mechanism 67 are both connected obliquely to the mobile frame 65, and the feeding slide mechanism 66 stores a material box 59 containing accessories;

[0219] The movable frame 65 is used to move to dock with the frame body 54 so that the lower end of the feeding slide mechanism 66 is connected with the corresponding higher end of the feeding slide mechanism 55 and the lower end of the discharging slide mechanism 57 is connected with the corresponding higher end of the recovery slide mechanism 67;

[0220] The movable frame 65 is further connected to a first docking mechanism 800 corresponding to the feeding slide mechanism 66. The first docking mechanism 800 is located at the lower side of the corresponding feeding slide mechanism 66. The first docking mechanism 800 is used to block the corresponding material box 59 in the feeding slide mechanism 66 to prevent the material box 59 from sliding when the movable frame 65 moves to disengage from the docking with the frame body 54. The first docking mechanism 800 is also used to release the blocking of the material box 59 in the feeding slide mechanism 66 when the movable frame 65 moves to dock with the frame body 54, so that the material box 59 in the feeding slide mechanism 66 can slide into the corresponding feeding slide mechanism 55.

[0221] The frame 54 is also connected to a second docking mechanism 900 corresponding to the discharging slide rail mechanism 57. The second docking mechanism 900 is located on the lower side of the corresponding discharging slide rail mechanism 57. The second docking mechanism 900 is used to block the corresponding material box 59 in the discharging slide rail mechanism 57 to prevent the material box 59 from sliding when the movable frame 65 moves to disengage from the docking with the frame 54. The second docking mechanism 900 is also used to release the blocking of the material box 59 in the discharging slide rail mechanism 57 when the movable frame 65 moves to dock with the frame 54, so that the material box 59 in the discharging slide rail mechanism 57 can slide into the corresponding recovery slide rail mechanism 67. Specifically, the feeding vehicle is moved to the warehouse, and the material box 59 containing the accessories is placed in the feeding slide mechanism 66. Then, the feeding vehicle is moved so that the mobile frame 65 of the feeding vehicle is docked with the frame 54. At this time, the first docking mechanism 800 and the second docking mechanism 900 are both unblocked, and the full material box 59 in the feeding slide mechanism 66 slides into the feeding slide mechanism 55, and the empty material box 59 in the discharging slide mechanism 57 slides into the recovery slide mechanism 67, thereby realizing the delivery of full material boxes 59 and the recovery of empty material boxes 59. Among them, the mobile frame 65 can be constructed of third-generation aluminum profile lean tubes and has universal wheels at the bottom.

[0222] like Figures 17-19As shown, the frame 54 is connected to a first crossbar 68 corresponding to the first docking mechanism 800. The first docking mechanism 800 includes a first mounting plate 69, a first elastic member 70 and a first sliding member 71.

[0223] The first mounting plate 69 is connected to the moving frame 65 and is located on the lower side of the corresponding feeding slide mechanism 66;

[0224] The first sliding member 71 is slidably connected to the first mounting plate 69 and has a first blocking position and a first passing position during the sliding process;

[0225] The first sliding member 71 has a first baffle portion 72 and a first slope portion 73;

[0226] One end of the first elastic member 70 abuts against the first mounting plate 69, and the other end of the first elastic member 70 abuts against the first sliding member 71. The first elastic member 70 is used to drive the first sliding member 71 to slide to the first blocking position so that the first baffle portion 72 in the first sliding member 71 extends into the corresponding feeding slide mechanism 66 to block the material box 59 in the feeding slide mechanism 66 to prevent the material box 59 from sliding off.

[0227] The first slope portion 73 has a first inclined surface 74;

[0228] The first cross bar 68 is used to abut against the first inclined surface 74 during the docking process between the movable frame 65 and the frame body 54, and drive the first slope portion 73 to move, thereby driving the entire first sliding component 71 to compress the first elastic member 70 and move to the first passing position so that the first baffle portion 72 in the first sliding component 71 exits the corresponding feeding slide mechanism 66, thereby allowing the material box 59 in the feeding slide mechanism 66 to slide into the corresponding feeding slide mechanism 55; in this embodiment, the first sliding component 71 is slidably connected to the first mounting plate 69 in the vertical direction, and the first blocking position is located above the first passing position;

[0229] The movable frame 65 is connected to a second crossbar corresponding to the second docking mechanism 900, and the second docking mechanism 900 includes a second mounting plate, a second elastic member and a second sliding member; wherein,

[0230] The second mounting plate is connected to the frame 54 and is located on the lower side of the corresponding discharge slide rail mechanism 57;

[0231] The second sliding member is slidably connected to the second mounting plate and has a second blocking position and a second passing position during the sliding process;

[0232] The second sliding component has a second baffle portion and a second slope portion;

[0233] One end of the second elastic member abuts against the second mounting plate, and the other end of the second elastic member abuts against the second sliding component. The second elastic member is used to drive the second sliding component to slide to the second blocking position so that the second baffle portion in the second sliding component extends into the corresponding discharge slide mechanism 57 to block the material box 59 in the discharge slide mechanism 57 to prevent the material box 59 from sliding off.

[0234] The second slope portion has a second inclined surface;

[0235] The second cross bar is used to abut against the second inclined surface and drive the second slope portion to move during the docking process of the movable frame 65 and the frame body 54, thereby driving the entire second sliding component to compress the second elastic component and move it to the second passing position so that the second baffle portion in the second sliding component can exit the corresponding discharging slide mechanism 57, thereby enabling the material box 59 in the discharging slide mechanism 57 to slide into the corresponding recovery slide mechanism 67; in this embodiment, the second sliding component is slidably connected to the second mounting plate in the vertical direction, and the second blocking position is located above the second passing position.

[0236] like Figures 17-19 As shown, the first docking mechanism 800 may further include a first core rod 75. The lower end of the first mounting plate 69 is connected to a first abutting portion 76. The upper end of the first core rod 75 is connected to the first slope 73, and the lower end of the first core rod 75 passes through the first abutting portion 76. The first elastic member 70 is sleeved over the first core rod 75, with the upper end of the first elastic member 70 abutting against the first slope 73, and the lower end of the first elastic member 70 abutting against the first abutting portion 76. The second docking mechanism 900 may further include a second core rod. The lower end of the second mounting plate is connected to a second abutting portion. The upper end of the second core rod is connected to the second slope, and the lower end of the second core rod passes through the second abutting portion. The second elastic member is sleeved over the second core rod, with the upper end of the second elastic member abutting against the second slope, and the lower end of the second elastic member abutting against the second abutting portion. In this embodiment, both the first elastic member 70 and the second elastic member are springs.

[0237] More specifically, the first mounting plate 69 has two first slots 77. The left and right sides of the first baffle portion 72 slide into corresponding first slots 77, respectively, thereby slidingly connecting the first sliding member 71 to the first mounting plate 69. The first mounting plate 69 is connected to at least one first wing portion 78, which is fastened to the movable frame 65 via fasteners. The first sloped portion 73 also has a first flat portion 79. When the first crossbar 68 abuts the first flat portion 79, the first sliding member 71 is positioned in the first pass-through position. The second mounting plate has two second slots. The left and right sides of the second baffle portion slide into corresponding second slots, respectively, thereby slidingly connecting the second sliding member to the second mounting plate. The second mounting plate is connected to at least one second wing portion, which is fastened to the frame 54 via fasteners. The second sloped portion also has a second flat portion. When the second crossbar abuts the second flat portion, the second sliding member is positioned in the second pass-through position.

[0238] In this embodiment, the feeding slide mechanism 66 is located above the corresponding recovery slide mechanism 67, and the inclination direction of the feeding slide mechanism 66 is opposite to the inclination direction of the recovery slide mechanism 67; the feeding slide mechanism 66 includes at least one fourth roller slide 80 obliquely connected to the mobile frame 65 and used to carry the material box 59; the recovery slide mechanism 67 includes at least one fifth roller slide 81 obliquely connected to the mobile frame 65 and used to carry the material box 59. In this embodiment, the fourth roller slide 80 and the fifth roller slide 81 are both smooth bars, and the feeding slide mechanism 66 and the recovery slide mechanism 67 are respectively provided with three, and the material box 59 can slide obliquely downward under the action of gravity in both the feeding slide mechanism 66 and the recovery slide mechanism 67. The feeding slide mechanism 66 includes two or more fourth roller slides 80, the recovery slide mechanism 67 includes two or more fifth roller slides 81, and the lower end of the recovery slide mechanism 67 is provided with a stop rod for blocking the material box 59.

[0239] The modular group assembly production line of the embodiment of the present application can change the problems of single assembly production form, cumbersome process, and difficult quality control. It combines standardization, modularization, and localized production, and performs various types of splitting and merging of production processes. It has a significant effect on changing the production model of sheet metal chassis and has certain reference significance for the modular production of more products. The modular group assembly production line of the embodiment of the present application applies technologies such as modularization, grouping, and production line reconstruction to build a flexible and reconfigurable production line, which can achieve rapid adjustment of the production line to adapt to changes in orders, working conditions, etc., and meet personalized and flexible production needs.

[0240] The starting conveying mechanism 2, the transfer conveying mechanism 3, the main conveying mechanism 4, the assembly conveying mechanism 5, the terminal conveying mechanism 10, the first lifting mechanism 400, the second lifting mechanism 500 and the slope conveying mechanism 600 can be freely combined. Different equipment can be configured for different products, which not only reduces the waste of manual non-assembly time and reduces labor intensity, but also speeds up the product changeover speed through modular combination, making the workshop layout more diversified and simple.

[0241] In summary, the production line tooling 1 is used to place various accessories and semi-finished products obtained by assembly, and workers can assemble the accessories and semi-finished products in the production line tooling 1 in the assembly station 300. After using this modular group assembly production line, the turnover conveyor line 100 can transport the production line tooling 1 located at the starting end and the accessories in the production line tooling 1 to each assembly station 300, and workers can assemble each accessory in the assembly station 300. After the production line tooling 1 is transported to the end of the turnover conveyor line 100, the return conveyor line 200 takes over the production line tooling 1 at the end of the turnover conveyor line 100 and transports the production line tooling 1 to the starting end of the turnover conveyor line 100, thereby realizing the circular conveying and circulation of the production line tooling 1, which is more convenient to use and does not require manual labor to transport the production line tooling 1 from the end of the turnover conveyor line 100 to the starting end, thereby reducing labor costs and reducing the labor intensity of workers.

[0242] The specific embodiments described above further illustrate the technical problems, technical solutions and beneficial effects solved by the present invention. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A modular group assembly production line, characterized in that: It comprises a turnover conveyor line (100), a return conveyor line (200), and at least two assembly stations (300) arranged in sequence along the turnover conveyor line (100); The turnover conveyor line (100) is used to convey the production line tooling (1), and the turnover conveyor line (100) has a starting end and an end end and is used to sequentially convey the production line tooling (1) located at the starting end to each of the assembly stations (300) and then convey the production line tooling (1) to the end end; The return conveyor line (200) is connected to the turnover conveyor line (100) and is used to receive the production line tooling (1) at the end of the turnover conveyor line (100) and transport the received production line tooling (1) to the starting end of the turnover conveyor line (100); The turnover conveyor line (100) comprises a starting conveying mechanism (2), a transfer conveying mechanism (3), a main conveying mechanism (4), at least one assembly conveying mechanism (5), a first lifting conveying mechanism (6), a second lifting conveying mechanism (7), a third lifting conveying mechanism (8), and a fourth lifting conveying mechanism (9) corresponding to the assembly conveying mechanism (5); The starting conveying mechanism (2) is used to receive the production line tooling (1) delivered from the return conveying line (200) and convey the production line tooling (1) to one of the assembly stations (300); The first lifting and conveying mechanism (6) is installed on the starting conveying mechanism (2), and the first lifting and conveying mechanism (6) is used to lift the production line tooling (1) on the starting conveying mechanism (2) and then convey the lifted production line tooling (1) to the second lifting and conveying mechanism (7); The second lifting and conveying mechanism (7) is installed on the transfer conveying mechanism (3), and the second lifting and conveying mechanism (7) is used to descend after receiving the production line tooling (1) delivered by the first lifting and conveying mechanism (6) so that the production line tooling (1) falls on the transfer conveying mechanism (3); The transfer conveying mechanism (3) is used to convey the production line tooling (1) to the third lifting conveying mechanism (8); The third lifting conveying mechanism (8) is connected to the main conveying mechanism (4), and the third lifting conveying mechanism (8) is used to descend after receiving the production line tooling (1) delivered by the transfer conveying mechanism (3) so that the production line tooling (1) falls on the main conveying mechanism (4); The main conveying mechanism (4) is used to convey the production line tooling (1) to move, and a positioning position corresponding to the fourth lifting conveying mechanism (9) is provided on the main conveying mechanism (4); The fourth lifting and conveying mechanism (9) is installed on the main conveying mechanism (4), and the fourth lifting and conveying mechanism (9) is used to lift up the production line tooling (1) at the corresponding positioning position and transport the lifted production line tooling (1) to the corresponding assembly conveying mechanism (5). The fourth lifting and conveying mechanism (9) is also used to receive the production line tooling (1) delivered by the corresponding assembly conveying mechanism (5) and then descend to allow the production line tooling (1) to fall back onto the main conveying mechanism (4); The assembly conveying mechanism (5) corresponds to the assembly station (300) and is used to receive the production line tooling (1) delivered by the corresponding fourth lifting conveying mechanism (9) and convey the production line tooling (1) to the corresponding assembly station (300). The assembly conveying mechanism (5) is also used to convey the production line tooling (1) back to the corresponding fourth lifting conveying mechanism (9).

2. The modular group assembly production line according to claim 1, characterized in that: The turnover conveying line (100) further comprises a terminal conveying mechanism (10), a fifth lifting conveying mechanism (11) and a sixth lifting conveying mechanism (12); wherein, A transfer position is also provided on the main conveying mechanism (4), and the positioning position is located in front of the transfer position in the conveying direction of the main conveying mechanism (4); The fifth lifting and conveying mechanism (11) is installed on the main conveying mechanism (4), and the fifth lifting and conveying mechanism (11) is used to lift the production line tooling (1) located in the transfer position and then transport the lifted production line tooling (1) to the sixth lifting and conveying mechanism (12); The sixth lifting and conveying mechanism (12) is installed on the terminal conveying mechanism (10), and the sixth lifting and conveying mechanism (12) is used to descend after receiving the production line tooling (1) delivered by the fifth lifting and conveying mechanism (11) so that the production line tooling (1) falls on the terminal conveying mechanism (10); The terminal conveying mechanism (10) is used to convey the production line tooling (1) to the return conveying line (200).

3. The modular group assembly production line according to claim 2, characterized in that: At least one of the first lifting and conveying mechanism (6), the second lifting and conveying mechanism (7), the third lifting and conveying mechanism (8), the fourth lifting and conveying mechanism (9), the fifth lifting and conveying mechanism (11) and the sixth lifting and conveying mechanism (12) respectively comprises: A fixing seat (13), wherein the fixing seat (13) is fixedly arranged; A lifting seat (14), the lifting seat (14) being slidably connected to the fixed seat (13) in an up-down direction; At least one conveying assembly (15), the conveying assembly (15) being connected to the lifting seat (14); A lifting drive member (16), the lifting drive member (16) is mounted on the fixed seat (13), the lifting drive member (16) is connected to the lifting seat (14) and is used to drive the lifting seat (14) to rise and thereby drive the conveying assembly (15) to rise to hold up the production line tooling (1); A conveying drive member is installed on the lifting seat (14) and is connected to the conveying assembly (15) and is used to drive the conveying assembly (15) to move so as to convey the production line tooling (1).

4. The modular group assembly production line according to claim 3, characterized in that: The lifting seat (14) includes a bottom plate (18) and a vertical plate (19) corresponding to the conveying assembly (15); The conveying assembly (15) comprises a conveyor belt (20) and at least two pulleys (21); The bottom plate (18) is slidably connected to the fixing seat (13) in an up-down direction; The vertical plate (19) is connected to the bottom plate (18); The pulley (21) is rotatably connected to the corresponding vertical plate (19); The conveyor belt (20) is connected to the pulley (21) and is used to support the production line tooling (1); The conveying drive is connected to the pulley (21) and is used to drive the pulley (21) to rotate, thereby driving the conveyor belt (20) to move to convey the production line tooling (1).

5. The modular group assembly production line according to claim 1, characterized in that: It also includes a temporary storage conveying mechanism (24) and a seventh lifting conveying mechanism (25) corresponding to the temporary storage conveying mechanism (24); wherein, The main conveying mechanism (4) is provided with a temporary storage position corresponding to the seventh lifting conveying mechanism (25); The seventh lifting and conveying mechanism (25) is installed on the main conveying mechanism (4), and the seventh lifting and conveying mechanism (25) is used to lift up the production line tooling (1) at the corresponding temporary storage position and transport the lifted production line tooling (1) to the corresponding temporary storage conveying mechanism (24). The seventh lifting and conveying mechanism (25) is also used to receive the production line tooling (1) sent by the corresponding temporary storage conveying mechanism (24) and then descend to allow the production line tooling (1) to fall back onto the main conveying mechanism (4); The temporary storage conveying mechanism (24) is used to receive the production line tooling (1) delivered by the corresponding seventh lifting conveying mechanism (25), and to convey the production line tooling (1) back to the seventh lifting conveying mechanism (25).

6. The modular group assembly production line according to claim 1, characterized in that: The return conveying line (200) comprises a first lifting mechanism (400), a second lifting mechanism (500) and a slope conveying mechanism (600); wherein, The slope conveying mechanism (600) is provided between the first lifting mechanism (400) and the second lifting mechanism (500), and the slope conveying mechanism (600) is arranged at an angle; The first lifting mechanism (400) is connected to a higher end portion of the slope conveying mechanism (600), and the first lifting mechanism (400) is used to receive the production line tooling (1) at the end of the turnover conveying line (100) and lift the received production line tooling (1) and then transport it to the higher end portion of the slope conveying mechanism (600) so that the production line tooling (1) slides along the slope conveying mechanism (600) to the lower end portion of the slope conveying mechanism (600); The second lifting mechanism (500) is connected to a lower end portion of the slope conveying mechanism (600), and the second lifting mechanism (500) is used to receive the production line tooling (1) delivered by the slope conveying mechanism (600) and lift the production line tooling (1) and then convey it to the starting end of the turnover conveying line (100).

7. The modular group assembly production line according to claim 6, characterized in that: The return conveying line (200) further includes a fixing frame (28); The slope conveying mechanism (600) comprises a left side roller rail (29), a right side roller rail (30) and at least one bottom roller rail (31); The left side roller rail (29) and the right side roller rail (30) are both obliquely connected to the fixed frame (28), and a slope channel for the production line tooling (1) to pass through is provided between the left side roller rail (29) and the right side roller rail (30); The bottom roller slide rail (31) is obliquely connected to the fixing frame (28) and is used to support the production line tooling (1) in the slope channel.

8. The modular group assembly production line according to claim 6, characterized in that: The first lifting mechanism (400) includes a first frame (33), a first conveying mechanism (34) and a first driving mechanism (35); wherein, The first conveying mechanism (34) is connected to the first frame (33) in a sliding manner in the up-down direction and has a receiving position and a feeding position during the sliding process. When the first conveying mechanism (34) is located at the receiving position, it is used to receive the production line tooling (1) delivered from the end of the turnover conveyor line (100). When the first conveying mechanism (34) is located at the feeding position, it is used to convey the production line tooling (1) to the higher end of the slope conveying mechanism (600); The first driving mechanism (35) is connected to the first conveying mechanism (34) and is used to drive the first conveying mechanism (34) to move up and down between the material receiving position and the material feeding position; The second lifting mechanism (500) includes a second frame (36), a second conveying mechanism (37), a second driving mechanism (38) and a material receiving mechanism (39); wherein, The material receiving mechanism (39) is connected to the second frame (36) and is used to receive the production line tooling (1) delivered by the slope conveying mechanism (600); The second conveying mechanism (37) is connected to the second frame (36) in a sliding manner in the up-down direction and has an initial position during the sliding process. When the second conveying mechanism (37) is located at the initial position, the second conveying mechanism (37) is located below the production line tooling (1) on the material receiving mechanism (39); The second driving mechanism (38) is connected to the second conveying mechanism (37) and is used to drive the second conveying mechanism (37) to rise to lift the production line tooling (1) on the material receiving mechanism (39). After the second conveying mechanism (37) is raised into position, it is used to transport the lifted production line tooling (1) to the starting end of the turnover conveyor line (100).

9. The modular group assembly production line according to claim 8, characterized in that: The first driving mechanism (35) comprises a first winding device, a first traction rope (40), at least one first end pulley (41), at least one second end pulley (42), at least one first top pulley (43) and at least one second top pulley (44); wherein, The first end pulley (41) is rotatably connected to one end of the first conveying mechanism (34); The second end pulley (42) is rotatably connected to the other end of the first conveying mechanism (34); The first top pulley (43) and the second top pulley (44) are both rotatably connected to the upper end of the first frame (33); One end of the first traction rope (40) is connected to the upper end of the first frame (33), and the first traction rope (40) is sequentially connected to the first end pulley (41), the first top pulley (43), the second end pulley (42) and the second top pulley (44) and then connected to the first winding device; The first winding device is connected to the first frame (33) and is used to wind up the first traction rope (40) to drive the first conveying mechanism (34) to rise upward; The second driving mechanism (38) comprises a second winding device, a second traction rope, at least one third end pulley, at least one fourth end pulley, at least one third top pulley and at least one fourth top pulley; wherein, The third end pulley is rotatably connected to one end of the second conveying mechanism (37); The fourth end pulley is rotatably connected to the other end of the second conveying mechanism (37); The third top pulley and the fourth top pulley are both rotatably connected to the upper end of the second frame (36); One end of the second traction rope is connected to the upper end of the second frame (36), and the second traction rope is sequentially connected to the third end pulley, the third top pulley, the fourth end pulley and the fourth top pulley and then connected to the second winding device; The second winding device is connected to the second frame (36) and is used to wind up the second traction rope to drive the second conveying mechanism (37) to rise upward.

10. The modular group assembly production line according to claim 8, characterized in that: The first conveying mechanism (34) comprises a first sliding frame (47) and at least two first conveying rollers (48); wherein, The first sliding frame (47) is slidably connected to the first frame (33) in an up-down direction; The first conveying roller (48) is rotatably connected to the first sliding frame (47), and the first conveying roller (48) is used to carry the production line tooling (1) and transport the production line tooling (1) when rotating; The second conveying mechanism (37) includes a second sliding frame (49) and at least two second conveying rollers (50); wherein, The second sliding frame (49) is slidably connected to the second frame (36) in an up-down direction; The second transport roller (50) is rotatably connected to the second sliding frame (49), and the second transport roller (50) is used to carry the production line tooling (1) and transport the production line tooling (1) when rotating; The material receiving mechanism (39) comprises at least one material receiving roller slide rail (51) and a bracket (52) corresponding to the material receiving roller slide rail (51); The bracket (52) is connected to the second frame (36); The receiving roller slide rail (51) is connected to the bracket (52) and is used to pass through the gap between adjacent second conveying rollers (50) when the second conveying mechanism (37) descends to the initial position.

11. The modular group assembly production line according to claim 1, characterized in that: The assembly station (300) is provided with an operating table (53) and a material rack (700), wherein the material rack (700) comprises a frame (54), at least one feed slide rail mechanism (55), a transfer rail (56) corresponding to the feed slide rail mechanism (55), a discharge slide rail mechanism (57) corresponding to the transfer rail (56), and a swing driving member (58) corresponding to the transfer rail (56); wherein, The feed rail mechanism (55) and the discharge rail mechanism (57) are both connected obliquely to the frame (54), and the feed rail mechanism (55) is used to receive a material box (59) containing accessories. The transfer track (56) is swingably connected to the frame (54) and has a feeding position and a discharging position during the swinging process. When the transfer track (56) swings to the feeding position, the transfer track (56) is connected with the lower end of the corresponding feeding slide rail mechanism (55) so that the material box (59) in the feeding slide rail mechanism (55) slides into the corresponding transfer track (56). When the transfer track (56) swings to the discharging position, the transfer track (56) is connected with the higher end of the corresponding discharging slide rail mechanism (57) so that the material box (59) in the transfer track (56) slides into the corresponding discharging slide rail mechanism (57). The swing drive member (58) is connected to the corresponding transfer track (56) and is used to drive the transfer track (56) to swing between the feeding position and the discharging position.

12. The modular group assembly production line according to claim 11, characterized in that: The feed rail mechanism (55) is provided with at least one storage position for storing the material box (59), and the feed rail mechanism (55) further includes a blocking mechanism (60) corresponding to the storage position, the blocking mechanism (60) being connected to the frame (54) and being used to move to abut against the material box (59) in the corresponding storage position to prevent the material box (59) from sliding downward, and the blocking mechanism (60) is also used to move to disengage from abutting against the material box (59) in the corresponding storage position to allow the material box (59) to slide downward along the feed rail mechanism (55).

13. The modular group assembly production line according to claim 11, characterized in that: The feed rail mechanism (55) is located above the corresponding discharge rail mechanism (57), and the inclination direction of the feed rail mechanism (55) is opposite to the inclination direction of the discharge rail mechanism (57); and / or the feed slide rail mechanism (55) includes at least one first roller slide rail (61) obliquely connected to the frame (54) and used to carry the material box (59); and / or the discharge slide rail mechanism (57) includes at least one second roller slide rail (62) obliquely connected to the frame (54) and used to carry the material box (59); And / or the transfer track (56) includes a swing frame (63) swingably connected to the frame body (54) and at least one third roller slide rail (64) connected to the swing frame (63).

14. The modular group assembly production line according to claim 11, characterized in that: It also includes a feeding vehicle, which includes a moving frame (65), a feeding slide mechanism (66) corresponding to the feeding slide mechanism (55), and a recovery slide mechanism (67) corresponding to the discharging slide mechanism (57); wherein, The feeding slide rail mechanism (66) and the recovery slide rail mechanism (67) are both connected obliquely to the movable frame (65), and a material box (59) containing accessories is stored in the feeding slide rail mechanism (66); The movable frame (65) is used to move to dock with the frame (54) so ​​that the lower end of the feeding slide mechanism (66) is connected to the corresponding higher end of the feeding slide mechanism (55) and the lower end of the discharging slide mechanism (57) is connected to the corresponding higher end of the recovery slide mechanism (67); The movable frame (65) is also connected to a first docking mechanism (800) corresponding to the feeding slide mechanism (66), and the first docking mechanism (800) is located on the lower side of the corresponding feeding slide mechanism (66). The first docking mechanism (800) is used to block the material box (59) in the corresponding feeding slide mechanism (66) when the movable frame (65) moves to disengage from the docking with the frame (54) to prevent the material box (59) from sliding off. The first docking mechanism (800) is also used to release the blocking of the material box (59) in the feeding slide mechanism (66) when the movable frame (65) moves to dock with the frame (54) so ​​that the material box (59) in the feeding slide mechanism (66) slides into the corresponding feeding slide mechanism (55); The frame (54) is also connected to a second docking mechanism (900) corresponding to the discharge slide mechanism (57), and the second docking mechanism (900) is located on the lower side of the corresponding discharge slide mechanism (57). The second docking mechanism (900) is used to block the material box (59) in the corresponding discharge slide mechanism (57) when the movable frame (65) moves to disengage from the docking with the frame (54) to prevent the material box (59) from sliding off. The second docking mechanism (900) is also used to release the blocking of the material box (59) in the discharge slide mechanism (57) when the movable frame (65) moves to dock with the frame (54) so ​​that the material box (59) in the discharge slide mechanism (57) slides into the corresponding recovery slide mechanism (67).

15. The modular group assembly production line according to claim 14, characterized in that: The frame (54) is connected to a first crossbar (68) corresponding to the first docking mechanism (800), and the first docking mechanism (800) includes a first mounting plate (69), a first elastic member (70) and a first sliding member (71); wherein, The first mounting plate (69) is connected to the movable frame (65) and is located on a lower side of the corresponding feeding slide rail mechanism (66); The first sliding component (71) is slidably connected to the first mounting plate (69) and has a first blocking position and a first passing position during the sliding process; The first sliding component (71) has a first baffle portion (72) and a first slope portion (73); One end of the first elastic member (70) abuts against the first mounting plate (69), and the other end of the first elastic member (70) abuts against the first sliding member (71). The first elastic member (70) is used to drive the first sliding member (71) to slide to the first blocking position so that the first baffle portion (72) in the first sliding member (71) extends into the corresponding feeding slide mechanism (66) to block the material box (59) in the feeding slide mechanism (66) to prevent the material box (59) from sliding off. The first slope portion (73) has a first inclined surface (74); The first cross bar (68) is used to abut against the first inclined surface (74) during the docking process between the movable frame (65) and the frame body (54) and drive the first slope portion (73) to move, thereby driving the entire first sliding component (71) to compress the first elastic component (70) and move it to the first passing position so that the first baffle portion (72) in the first sliding component (71) exits the corresponding feeding slide mechanism (66); The movable frame (65) is connected to a second crossbar corresponding to the second docking mechanism (900), and the second docking mechanism (900) comprises a second mounting plate, a second elastic member, and a second sliding member; wherein, The second mounting plate is connected to the frame (54) and is located on the lower side of the corresponding discharge slide rail mechanism (57); The second sliding member is slidably connected to the second mounting plate and has a second blocking position and a second passing position during the sliding process; The second sliding component has a second baffle portion and a second slope portion; One end of the second elastic member abuts against the second mounting plate, and the other end of the second elastic member abuts against the second sliding member. The second elastic member is used to drive the second sliding member to slide to the second blocking position so that the second baffle portion in the second sliding member extends into the corresponding discharge slide mechanism (57) to block the material box (59) in the discharge slide mechanism (57) to prevent the material box (59) from sliding off. The second slope portion has a second inclined surface; The second cross bar is used to abut against the second inclined surface and drive the second slope portion to move during the docking process between the movable frame (65) and the frame body (54), thereby driving the entire second sliding component to compress the second elastic component and move it to the second passing position so that the second baffle portion in the second sliding component exits the corresponding discharge slide mechanism (57).

16. The modular group assembly production line according to claim 14, characterized in that: The feeding slide rail mechanism (66) is located above the corresponding recovery slide rail mechanism (67), and the inclination direction of the feeding slide rail mechanism (66) is opposite to the inclination direction of the recovery slide rail mechanism (67); and / or the feeding slide rail mechanism (66) includes at least one fourth roller slide rail (80) obliquely connected to the moving frame (65) and used for carrying the material box (59); And / or the recovery slide rail mechanism (67) includes at least one fifth roller slide rail (81) obliquely connected to the moving frame (65) and used to carry the material box (59).

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