A gearbox assembly conveyor system

Abstract

The application provides a gearbox assembly conveying system, which comprises a conveying system, the conveying system comprising a chassis, one or more assembly conveying devices, a recovery conveying device, a turnover table for hanging a gearbox, two or more sliding frames, a sliding mechanism and a limiting mechanism arranged on the assembly conveying device; the assembly conveying device and the recovery conveying device are used for conveying the turnover table, the sliding frames are used for sliding the turnover table between the assembly conveying device and the recovery conveying device; and the limiting mechanism is used for limiting the turnover tables in different assembly processes on the assembly conveying device, so as to separate the assembly processes; the application can improve the assembly efficiency, the progress of different assembly processes does not affect each other, and the conveying device has a small floor area.

Description

Technical Field

[0001] This invention relates to the field of automotive assembly technology, and more specifically to a gearbox assembly and conveying system. Background Technology

[0002] Automobiles are a very common product in daily life. The automobile gearbox is a device that changes the speed ratio and direction of motion. It is used to change the torque, speed and direction of motion transmitted from the drive shaft to the driven shaft according to different working conditions. Gear transmission gearboxes are generally composed of a housing and several gear pairs. During production, gearboxes are assembled piece by piece. The gear shafts of the gearbox are mainly assembled manually. Therefore, the production of gearboxes uses automobile engine and gearbox assembly lines.

[0003] However, existing automotive engine and transmission assembly lines are inconvenient for loading and unloading materials during use, requiring manual handling, which greatly increases the labor intensity of workers and results in low assembly efficiency.

[0004] To address the aforementioned technical problems, Chinese Patent No. 202120890463.5, published on November 30, 2021, discloses an automotive engine and transmission assembly line, comprising a conveying device, an assembly table, and a tray. Assembly tables are symmetrically mounted on both sides of the conveying device. A sliding rod is vertically positioned inside the mounting cavity, and a sliding sleeve is fitted around the outer side of the sliding rod. A mounting component and a sliding sleeve are fixedly connected to one side of the tray. One end of the mounting cavity is equipped with a lifting structure, which includes a servo motor, a transmission assembly, a mounting component, a sliding rod, a sliding sleeve, and the transmission structure. The servo motor drives the transmission assembly, and the cooperation between the sliding rod and the sliding sleeve allows the tray to move up and down, placing parts frames on the tray for lifting and lowering. This significantly reduces the labor intensity of workers and improves assembly efficiency. A storage box is provided inside the assembly table, allowing commonly used tools to be stored inside.

[0005] Assembling a gearbox requires multiple assembly steps, each with varying assembly times. However, according to the technical solution disclosed in this patent document, if the previous step is not completed, the next step must wait for the previous step to finish before continuing the assembly work, resulting in low assembly efficiency and impacting economic benefits. Furthermore, tooling is generally required during gearbox assembly. If the gearbox is installed using tooling according to the above structure, and the conveyor line is unidirectional, then after the gearbox assembly is completed, the tooling needs to be removed and retransported to the beginning of the conveyor device. This requires specialized transfer equipment, resulting in long assembly times and high labor costs.

[0006] Currently, there are also circular assembly conveyor lines. In this type of line, tooling is transported via a conveyor during gearbox assembly, and the gearbox is assembled on the tooling. Once the gearbox is assembled, it is removed from the tooling and then transferred to a return conveyor line via a circular track. The tooling on the return conveyor line then re-enters the beginning of the conveyor line via the circular track. Although this structure allows for the cyclical transfer of tooling, the circular track requires a large footprint for the assembly conveyor line. Furthermore, it is difficult to ensure that the front end of the return conveyor line is fully loaded when the tooling is being returned, resulting in low transfer efficiency. Summary of the Invention

[0007] This invention provides a gearbox assembly and conveying system. Utilizing the structure of this invention, assembly efficiency can be improved, the progress of different assembly processes does not affect each other, and the gearbox assembly and conveying system occupies a small area.

[0008] To achieve the above objectives, the technical solution of the present invention is: a gearbox assembly and conveying system, comprising a conveying system, the conveying system including a base frame, one or more assembly conveying devices, a recycling conveying device, a tilting table for mounting the gearbox, two or more sliding frames, a sliding mechanism, and a limiting mechanism disposed on the assembly conveying device; the assembly conveying device and the recycling conveying device are used to convey the tilting table, the sliding frames are used to transfer the tilting table between the assembly conveying device and the recycling conveying device; the limiting mechanism is used to limit the tilting table of different assembly processes on the assembly conveying device, thereby separating each assembly process.

[0009] The assembly conveyor and the recycling conveyor are arranged side by side on the base frame. At each end of the base frame in the conveying direction of the assembly conveyor and the recycling conveyor, there is one or more sliding frames. The sliding frames are slidably mounted on the base frame by a sliding mechanism. The movement direction of the sliding frames is perpendicular to the movement direction of the tilting table on the assembly conveyor. The conveying directions of the assembly conveyor and the recycling conveyor are opposite.

[0010] An upright plate is installed on the base frame between the assembly conveyor and the recycling conveyor; a first sensor is installed on the outside of the upright plate at a position corresponding to the assembly station of each assembly process; and three or more second sensors are installed on the inside of the upright plate. Both the first and second sensors are connected to a controller.

[0011] The working method of the above-mentioned gearbox assembly and conveying system is as follows: (1) Place the tilting table onto the assembly conveyor located on at least one side of the recycling conveyor.

[0012] (2) Start the assembly conveying device and convey the turning table forward in the direction from the beginning to the end of the assembly conveying device. When the first sensor installed on the vertical plate corresponding to the first assembly process detects that there is a turning table, the assembly conveying device stops conveying the turning table. At the same time, the limiting mechanism located in front of the first assembly process restricts the turning table in the first assembly process from moving forward. The gearbox workpiece is assembled on the turning table in the first assembly process.

[0013] (3) After the first assembly process is completed, the limiting mechanism located in front of the first assembly process retracts; another turning table is input at the beginning of the assembly conveying device, and the assembly conveying device is started to transport the other turning table forward to the first assembly process. The turning table on the first assembly process is transported to the second assembly process. When the first sensor installed on the vertical plate corresponding to the first assembly process and the second assembly process detects that there is a turning table, the assembly conveying device stops transporting the turning table. At the same time, the limiting mechanism located in front of the first assembly process and the second assembly process respectively restricts the turning table on the first assembly process and the second assembly process to move forward. The gearbox workpiece is assembled on the turning table in the first assembly process and the second assembly process. If there is a third assembly process, a fourth assembly process and more assembly processes set in sequence, the steps are repeated until the gearbox is assembled on the turning table.

[0014] (4) The first assembled gearbox, along with the tilting table, enters the waiting sliding frame at the end of the assembly conveyor.

[0015] (5) Remove the gearbox from the tilting table on the sliding frame located at the end of the assembly conveyor.

[0016] (6) The sliding frame located at the end of the assembly conveyor moves the tilting table to the beginning of the recycling conveyor.

[0017] (7) Transport the tilting table on the sliding frame at the end of the assembly conveyor to the recycling conveyor.

[0018] (8) The second sensor at the end of the vertical plate of the recycling conveyor detects whether there is a flipping table. If no flipping table is detected, the flipping table at the beginning of the recycling conveyor is continuously conveyed to the end of the recycling conveyor to ensure that there are flipping tables arranged continuously from the end to the beginning of the recycling conveyor.

[0019] (9) The sliding frame located at the beginning of the assembly conveying device moves from the beginning of the assembly conveying device to the end of the recycling conveying device. When the end of the recycling conveying device detects the sliding frame, the turning table located at the end of the recycling conveying device moves forward onto the sliding frame. Otherwise, the recycling conveying device does not move. When there is a turning table on the sliding frame located at the beginning of the assembly conveying device, the sliding frame is moved to the beginning of the assembly conveying device, and the turning table is transferred to the beginning of the assembly conveying device through the sliding frame.

[0020] (10) Repeat the above steps to assemble the gearbox on the tilting table and to recycle and transport the tilting table.

[0021] The above setup, on the one hand, separates different assembly processes by assembling the gearbox on the tilting table from one side of the assembly conveyor and restricting the tilting table with a control limit mechanism. This ensures that workers in each assembly process are not affected by the progress of other assembly processes. Once the assembly of a particular process is completed, the limit mechanism can be retracted, allowing the tilting table to be transported from the previous assembly process to the current process on the assembly conveyor. This improves the efficiency of gearbox assembly. On the other hand, the assembly conveyor transports tilting tables that have successively completed gearbox assembly to a sliding frame at one end, where the assembled gearbox is removed from the tilting table. The gearbox is then sent for testing. A sliding mechanism moves the sliding frame to the beginning of the recycling conveyor, where it is transported. The recycling conveyor then transports the empty turntable to the sliding frame at its end. The sliding mechanism then moves the sliding frame to the beginning of the assembly conveyor, where the gearbox to be assembled is hung on the empty turntable. This creates a square loop connecting the assembly conveyor, sliding frame, recycling conveyor, and sliding frame to the turntable. The conveying system has high transmission efficiency, a compact structure, and a small footprint, allowing for the simultaneous assembly of multiple gearboxes and improving economic efficiency. Furthermore, the inclusion of multiple second sensors ensures a continuous arrangement of turntables from the beginning to the end of the recycling conveyor. This eliminates the need for the sliding frame at the end of the recycling conveyor to wait for empty turntables, improving the turntable transfer efficiency and thus assembly efficiency.

[0022] Furthermore, the assembly conveying device includes a frame and a conveying assembly. The conveying assembly includes conveying groups equal to the number of processes. Each conveying group includes one or more conveying mechanisms. Each conveying mechanism includes two or more conveying rollers and a conveying drive mechanism. The conveying rollers are mounted in the frame via bearings. The axes of adjacent conveying rollers are on the same plane. The upper edge of the frame is higher than the highest point of the conveying rollers. The conveying mechanism is mounted on the frame and drives the conveying rollers. The recycling conveying device includes a recycling frame and a recycling conveying assembly. The recycling conveying assembly includes two or more recycling conveying groups. Each recycling conveying group includes one or more recycling conveying mechanisms. Each recycling conveying mechanism includes two or more recycling rollers and a recycling drive mechanism. The recycling rollers are mounted in the recycling frame via bearings. The axes of adjacent recycling rollers are on the same plane. The upper edge of the recycling frame is higher than the highest point of the recycling rollers. The recycling mechanism is mounted on the recycling frame and drives the recycling rollers.

[0023] This structure, by setting up independent conveyor groups at the corresponding positions of each assembly process, allows for individual control of each conveyor group, facilitating operation. In this invention, each assembly process can accommodate at least two tilting tables. For example, when two tilting tables can be accommodated, the first position is the assembly position, and the second position is the waiting position. A limiting mechanism is set at the front end of the second position. Thus, when the assembly in the first assembly process is completed, but the next assembly process is not yet completed, the conveyor drive mechanism is controlled to move the gearbox of the assembled workpiece forward to the second position to wait. The limiting mechanism restricts its forward movement to avoid affecting the normal operation of the next assembly process. At the same time, when the tilting table in the first position is conveyed away, the next tilting table can enter the first position and continue assembly in the first position, thereby improving the overall assembly efficiency.

[0024] For recycling conveying devices, by setting up multiple recycling conveying groups, each recycling conveying group can be controlled individually. In this way, when there is space between adjacent turning tables in the recycling conveying device, the empty turning tables can be arranged continuously through individual control.

[0025] Furthermore, the conveying drive mechanism includes a first motor, a first driving sprocket, a first driven sprocket, a conveying driven sprocket, a first driving chain, and a first driven chain; the first motor is mounted on the frame, the first driving sprocket is mounted on the output shaft of the first motor, the first driven sprocket is mounted on one of the conveying rollers of the same conveying mechanism, the first driving chain is sleeved between the first driving sprocket and the first driven sprocket, a conveying driven sprocket is mounted on the conveying roller, and a first driven chain is sleeved between adjacent conveying driven sprockets; the recycling conveying drive mechanism includes a second motor, a second driving sprocket, a second driven sprocket, a recycling driven sprocket, a second driving chain, and a second driven chain; the second motor is mounted on the recycling frame, the second driving sprocket is mounted on the output shaft of the second motor, the second driven sprocket is mounted on one of the recycling conveying rollers of the same recycling conveying mechanism, the second driving chain is sleeved between the second driving sprocket and the second driven sprocket, a recycling driven sprocket is mounted on the recycling conveying roller, and a second driven chain is sleeved between adjacent recycling driven sprockets. The assembly conveying device and the recycling conveying device move in opposite directions.

[0026] In the above structure, when the first motor operates, it drives the first drive sprocket to rotate. The first drive sprocket, through a first drive chain, drives the first driven sprocket to rotate. The first driven sprocket drives the corresponding conveying roller to rotate. The conveying drive sprocket and the first driven chain then drive the conveying roller in the same conveying mechanism to rotate, thereby achieving the conveying of the tilting table. When the second motor operates, it drives the second drive sprocket to rotate. The second drive sprocket, through a second drive chain, drives the second driven sprocket to rotate. The second driven sprocket drives the corresponding recycling conveying roller to rotate. The recycling driven sprocket and the second driven chain then drive the recycling conveying roller in the same recycling conveying mechanism to rotate, thereby achieving the conveying of the tilting table.

[0027] Furthermore, the tilting table includes a base plate, a column located in the middle of the base plate, rollers on the base plate, and a tilting seat located at the upper end of the column; the rollers are positioned to abut against the inner side wall of the frame; the tilting seat is provided with a rotating rod for hanging a gearbox, and a rotating handle for controlling the rotation of the rotating rod is provided on one side of the tilting seat; the tilting seat can rotate 360° along the vertical axis of the column.

[0028] With the above structure, workers can adjust the rotating rod by controlling the rotating handle, which facilitates the adjustment of the gearbox mounted on the rotating rod. The angle of the gearbox can be adjusted according to actual assembly needs, making gearbox assembly more convenient.

[0029] Furthermore, the sliding mechanism includes a guide rail mounted on the base frame and pulleys mounted on the bottom of the sliding frame, with the pulleys slidably mounted on the guide rail. This facilitates smooth movement of the sliding frame on the base frame.

[0030] Furthermore, the sliding frame is also equipped with a sliding drive device for driving the sliding frame; in this way, the sliding frame can be driven to slide by the sliding drive device, reducing the physical burden on the staff.

[0031] Furthermore, the guide rail is provided with guide rail limiting members at both ends along its length to limit the sliding frame; thus, the guide rail limiting members limit the sliding frame and prevent it from detaching from the guide rail. Abutment members are provided on both sides of the sliding frame corresponding to the guide rail limiting members; with this configuration, when a sliding frame moves to one end of the assembly conveyor, the abutment member on one side of the sliding frame abuts against the guide rail limiting member; when a sliding frame moves to one end of the recycling conveyor, the abutment member on one side of the sliding frame abuts against the abutment member on another sliding frame located at one end of the assembly conveyor; thus, the abutment members can protect the sliding frame.

[0032] Furthermore, the limiting mechanism includes a telescopic mechanism and a telescopic rod disposed on the telescopic mechanism; when it is necessary to limit the tilting table, the telescopic mechanism is controlled to drive the telescopic rod to extend until the end of the telescopic rod is higher than the highest point of the transmission roller. In this way, the tilting table can be reliably limited, and when it is not necessary to limit it, the tilting table can be released.

[0033] Furthermore, the end of the telescopic rod is also provided with a limit switch, which is used to control the conveying drive mechanism. With the above configuration, when it is necessary to limit the tilting table, the telescopic mechanism is controlled to extend, so that the limit switch at the end of the telescopic mechanism extends above the transmission roller. The tilting table pushes the limit switch under the conveying action of the transmission roller, and then controls the conveying drive mechanism to stop working through the limit switch, thus stopping the conveying of the tilting table.

[0034] Furthermore, there are two assembly conveying devices, which are respectively located on both sides of the recycling conveying device. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the main structure of the present invention.

[0036] Figure 2 This is a front view schematic diagram of an embodiment of the present invention when a sliding frame moves to one end of the recycling conveyor.

[0037] Figure 3 This is a side view of the structure of the present invention.

[0038] Figure 4 This is a schematic diagram of the internal structure of the transmission device in this invention.

[0039] Figure 5 This is a top view of the structure of the present invention.

[0040] Figure 6 This is a schematic diagram of the limiting mechanism in this invention.

[0041] Figure 7 This is a schematic diagram of the tilting table in this invention.

[0042] Figure 8 This is a downward structural diagram of the assembly conveyor device.

[0043] Figure 9 This is a schematic diagram of the lateral structure of the assembly conveyor.

[0044] Figure 10 This is a downward-facing structural diagram of the recycling conveyor.

[0045] Figure 11 This is a schematic diagram of the lateral structure of the recycling conveyor. Detailed Implementation

[0046] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0047] like Figures 1-7 As shown, a gearbox assembly conveying system includes a conveying system comprising a base frame 1, one or more assembly conveying devices 2, a recovery conveying device 3, a tilting table 4 for mounting the gearbox, two or more sliding frames 5, a sliding mechanism, and a limiting mechanism 7 disposed on the assembly conveying device 2. The assembly conveying device 2 and the recovery conveying device 3 are used to convey the tilting table 4, and the sliding frames 5 are used to vertically transfer the tilting table 4 between the assembly conveying device 2 and the recovery conveying device 3. The limiting mechanism 7 is used to limit the tilting tables 4 of different processes on the assembly conveying device 2, thereby separating the various assembly processes.

[0048] Assembly conveying device 2 and recycling conveying device 3 are arranged side by side on the base frame 1. The base frame 1 has one or more sliding frames 5 at each end of the conveying direction of assembly conveying device 2 and recycling conveying device 3. The sliding frames 5 are slidably arranged on the base frame 1 through a sliding mechanism. The conveying directions of assembly conveying device 2 and recycling conveying device 3 are opposite. The turning table 4 on assembly conveying device 2 or recycling conveying device 3 is conveyed to the sliding frame 5 and transferred to recycling conveying device 3 or assembly conveying device 2 through the sliding frame 5. In this embodiment, there are two assembly conveying devices 2, and the two assembly conveying devices 2 are respectively arranged on both sides of recycling conveying device 3.

[0049] The sliding mechanism includes a guide rail 61 mounted on the base frame 1 and a pulley 62 mounted on the bottom of the sliding frame 5. The pulley 62 is slidably mounted on the guide rail 61. Of course, the pulley can also be replaced by a slider. With the above configuration, the sliding frame 5 can slide stably between the assembly conveying device 2 and the recycling conveying device 3.

[0050] like Figure 4 and Figure 6 As shown, the limiting mechanism 7 includes a telescopic mechanism 71 and a telescopic rod 72 disposed on the telescopic mechanism 71. When it is necessary to limit the tilting table 4, the telescopic mechanism 71 is controlled to drive the telescopic rod 72 to extend until the end of the telescopic rod 72 is higher than the highest point of the transmission roller 82. This configuration allows the length of the telescopic rod 72 to be controlled by the telescopic mechanism 71, thereby separating different assembly processes. In this embodiment, the telescopic mechanism 71 is a telescopic motor or cylinder. In this embodiment, the base frame 1 has a mounting plate for mounting the telescopic mechanism 71 below the conveying roller 82.

[0051] An upright plate 88 is provided on the base frame 1 between the assembly conveyor 2 and the recycling conveyor 3; a first sensor is provided on the outside of the upright plate 88 at a position corresponding to the assembly station of each assembly process; three or more second sensors are provided on the inside of the upright plate. The first and second sensors are both connected to a controller. The first and second sensors are both position sensors. The controller is an MCU.

[0052] The working method of the above-mentioned gearbox assembly and conveying system is as follows: (1) Place the tilting table onto the assembly conveyor located on at least one side of the recycling conveyor.

[0053] (2) Start the assembly conveying device and convey the turning table forward in the direction from the beginning to the end of the assembly conveying device. When the first sensor installed on the vertical plate corresponding to the first assembly process detects that there is a turning table, the assembly conveying device stops conveying the turning table. At the same time, the limiting mechanism located in front of the first assembly process restricts the turning table in the first assembly process from moving forward. The gearbox workpiece is assembled on the turning table in the first assembly process.

[0054] (3) After the first assembly process is completed, the limiting mechanism located in front of the first assembly process retracts; another turning table is input at the beginning of the assembly conveying device, and the assembly conveying device is started to transport the other turning table forward to the first assembly process. The turning table on the first assembly process is transported to the second assembly process. When the first sensor installed on the vertical plate corresponding to the first assembly process and the second assembly process detects that there is a turning table, the assembly conveying device stops transporting the turning table. At the same time, the limiting mechanism located in front of the first assembly process and the second assembly process respectively restricts the turning table on the first assembly process and the second assembly process to move forward. The gearbox workpiece is assembled on the turning table in the first assembly process and the second assembly process. If there is a third assembly process and a fourth assembly process set in sequence, the steps are repeated until the gearbox is assembled on the turning table.

[0055] (4) The first assembled gearbox, along with the tilting table, enters the waiting sliding frame at the end of the assembly conveyor.

[0056] (5) The gearbox is removed from the turntable and sent to the inspection station on the sliding frame located at the end of the assembly conveyor.

[0057] (6) The sliding frame located at the end of the assembly conveyor moves the tilting table to the beginning of the recycling conveyor.

[0058] (7) Transport the tilting table on the sliding frame at the end of the assembly conveyor to the recycling conveyor.

[0059] (8) The second sensor at the end of the vertical plate of the recycling conveyor detects whether there is a flipping table. If no flipping table is detected, the flipping table at the beginning of the recycling conveyor is continuously conveyed to the end of the recycling conveyor to ensure that there are flipping tables arranged continuously from the end to the beginning of the recycling conveyor.

[0060] (9) The sliding frame located at the beginning of the assembly conveying device moves from the beginning of the assembly conveying device to the end of the recycling conveying device. When the end of the recycling conveying device detects the sliding frame, the turning table located at the end of the recycling conveying device moves forward onto the sliding frame. Otherwise, the recycling conveying device does not move. When there is a turning table on the sliding frame located at the beginning of the assembly conveying device, the sliding frame is moved to the beginning of the assembly conveying device, and the turning table is transferred to the beginning of the assembly conveying device through the sliding frame.

[0061] (10) Repeat the above steps to assemble the gearbox on the tilting table and to recycle and transport the tilting table.

[0062] The above setup, on the one hand, separates different assembly processes by assembling the gearbox on one side of the assembly conveyor and restricting the gearbox using a limiting mechanism. This ensures that workers in each assembly process are not affected by the progress of other processes. Once the current assembly process is complete, the limiting mechanism 7 can be retracted, allowing the gearbox 4 to be transported from the previous assembly process to the current process on the assembly conveyor 2. This improves the efficiency of gearbox assembly. On the other hand, the assembly conveyor 2 transports the gearboxes that have completed assembly on the gearboxes to the sliding frame 5 at one end, where the assembled gearboxes are removed from the gearboxes and then the gearboxes are shifted. The box is sent for testing. The sliding mechanism moves the sliding frame 5 to the beginning of the recycling conveyor 3. The sliding frame 5 is gently pushed into the recycling conveyor 3, and the empty turning table 4 is transported to the sliding frame 5 at the end of the recycling conveyor 3. The sliding mechanism then moves the sliding frame to the beginning of the assembly conveyor, where the gearbox to be assembled is hung on the empty turning table 4. In this way, the assembly conveyor 2, sliding frame 5, recycling conveyor 3, and sliding frame 5 form a square loop for transporting the turning table 4. The conveying system has high transmission efficiency to the turning table 4, a compact structure, and a small footprint. It can assemble multiple gearboxes simultaneously, thereby improving economic efficiency. In this invention, the empty turning table is continuously sent to the end of the recycling conveyor. When there is an empty sliding frame at the end of the recycling conveyor, the empty turning table can be sent to the sliding frame, which then moves to the beginning of the assembly conveyor, where the gearbox to be assembled is hung on the empty turning table.

[0063] The assembly conveying device 2 includes a frame 81 and a conveying assembly. In this invention, the frame 81 is a frame structure connected end to end by four beams, and a frame cavity is formed inside the frame 81. The conveying assembly includes a conveying group with the same number of processes. The conveying group includes one or more conveying mechanisms. The conveying mechanism includes two or more conveying rollers 82 and a conveying drive mechanism. The conveying rollers 82 are mounted in the frame space of the frame 81 by bearings. The axes of adjacent conveying rollers 82 are on the same plane. The upper edge of the frame 81 is higher than the highest point of the conveying rollers 82. In this way, when the turning table moves on the conveying rollers, the two sides of the frame can limit and guide the turning table. The conveying mechanism is mounted on the frame 81 and drives the conveying rollers.

[0064] like Figure 8 and Figure 9As shown, the conveying drive mechanism includes a first motor 831, a first driving sprocket 832, a first driven sprocket 833, a conveying driven sprocket 834, a first driving chain 835, and a first driven chain 836. The first motor 831 is mounted on the frame 91, the first driving sprocket 832 is mounted on the output shaft of the first motor 831, the first driven sprocket 833 is mounted at one end of one of the conveying rollers 82 in the same conveying mechanism, the first driving chain 835 is sleeved between the first driving sprocket 832 and the first driven sprocket 833, the conveying driven sprockets 834 are mounted at both ends of the conveying roller, and the first driven chain 836 is sleeved between adjacent conveying driven sprockets. In this invention, two conveying driven sprockets are mounted at each end of the conveying roller located between the two ends, and one conveying driven sprocket is mounted on the conveying roller located at both ends.

[0065] By setting up independent conveyor groups at the corresponding positions of each assembly process, each conveyor group can be controlled individually, facilitating operation. In this invention, each assembly process can accommodate at least two tilting tables. For example, when two tilting tables can be accommodated, the first position is the assembly position, and the second position is the waiting position. The limiting mechanism is set at the front end of the second position. Thus, when the assembly in the first assembly process is completed, but the next assembly process is not yet completed, the conveyor drive mechanism is controlled to drive the gearbox of the assembled workpiece forward to the second position to wait. The limiting mechanism restricts its forward movement to avoid affecting the normal operation of the next assembly process. At the same time, when the tilting table in the first position is conveyed away, the next tilting table can enter the first position and continue to assemble in the first position, thereby improving the overall assembly efficiency.

[0066] When the first motor is working, it drives the first drive sprocket to rotate. The first drive sprocket drives the first driven sprocket to rotate through the first drive chain. The first driven sprocket drives the corresponding conveying roller to rotate. Through the conveying drive sprocket and the first driven chain, it drives the conveying roller in the same conveying mechanism to rotate, thereby realizing the conveying of the tilting table.

[0067] like Figure 10 and Figure 11As shown, the recycling and conveying device 3 includes a recycling frame 91 and a recycling and conveying assembly. In this invention, the recycling frame 91 is a frame structure connected end to end by four beams. A recycling frame cavity is formed inside the recycling frame 91. The recycling and conveying assembly includes two or more recycling and conveying groups. Each recycling and conveying group includes one or more recycling and conveying mechanisms. Each recycling and conveying mechanism includes two or more recycling and conveying rollers 92 and a recycling and conveying drive mechanism. The recycling and conveying rollers 92 are installed in the recycling cavity of the recycling frame through bearings. The axes of adjacent recycling and conveying rollers are on the same plane. The upper edge of the recycling frame 91 is higher than the highest point of the recycling and conveying rollers. In this way, the two sides of the recycling frame can guide and limit the turning table. The recycling and conveying mechanism is installed on the recycling frame and drives the recycling and conveying rollers 92.

[0068] For recycling conveying devices, by setting up multiple recycling conveying groups, each recycling conveying group can be controlled individually. In this way, when there is space between adjacent turning tables in the recycling conveying device, the empty turning tables can be arranged continuously through individual control.

[0069] The described recycling conveying drive mechanism includes a second motor 931, a second driving sprocket 932, a second driven sprocket 933, a recycling driven sprocket 934, a second driving chain 935, and a second driven chain 936. The second motor 931 is mounted on the recycling frame 91, the second driving sprocket 932 is mounted on the output shaft of the second motor 931, the second driven sprocket 933 is mounted at one end of one of the recycling conveying rollers in the same recycling conveying mechanism, the second driving chain 935 is sleeved between the second driving sprocket 932 and the second driven sprocket 933, the recycling driven sprocket 934 is mounted on the recycling conveying roller, and the second driven chain 936 is sleeved between adjacent recycling driven sprockets. In this invention, two recycling driven sprockets are mounted at each end of the recycling conveying roller located between the two ends, and one recycling driven sprocket is mounted on the recycling conveying roller located at each end.

[0070] When the second motor operates, it drives the second drive sprocket to rotate. The second drive sprocket, through the second drive chain, drives the second driven sprocket to rotate. The second driven sprocket drives the corresponding recycling conveyor roller to rotate, and through the recycling driven sprocket and the second driven chain, it drives the recycling conveyor roller in the same recycling conveying mechanism to rotate, thereby realizing the conveying of the tilting table. The assembly conveying device and the recycling conveying device move in opposite directions.

[0071] The sliding frame 5 is also equipped with a sliding drive device (not shown in the figure) for driving the pulley 62. In this example, the sliding drive device can be a cylinder, hydraulic cylinder, linear motor, lead screw and nut structure, etc. In this way, the sliding frame 5 can be driven to slide by the sliding drive device, reducing the physical burden on the workers.

[0072] The guide rail 61 has guide rail limiting members 611 at both ends in the length direction for limiting the sliding frame 5; in this way, the guide rail limiting members 611 limit the sliding frame 5 and prevent the sliding frame 5 from leaving the guide rail 61.

[0073] In this embodiment, abutment members 51 are respectively provided on both sides of the sliding frame 5 corresponding to the slide rail limiting member; with the above configuration, when a sliding frame 5 moves to one end of the assembly conveying device 2, the abutment member 51 on one side of the sliding frame 5 abuts against the guide rail limiting member 611; when a sliding frame 5 moves to one end of the recycling conveying device 3, the abutment member 51 on one side of the sliding frame 5 abuts against the abutment member 51 on another sliding frame 5 located at one end of the assembly conveying device 2; in this way, the abutment member 51 can protect the sliding frame 5.

[0074] In this embodiment, a shielding part 85 composed of multiple plates is also provided on the upright plate. The shielding part 85 is provided with a control switch 9 on the side near the assembly conveying device 2 for controlling the conveying drive mechanism and the recycling drive mechanism and for controlling the extension and retraction of the telescopic mechanism 71.

[0075] The end of the telescopic rod 72 is also provided with a limit switch 73, which is used to control the conveying drive mechanism 83. With the above configuration, when it is necessary to limit the tilting table 4, the telescopic mechanism 71 is controlled to extend, so that the limit switch 73 at the end of the telescopic mechanism 71 extends above the transmission roller 82. The tilting table 4 pushes the limit switch 73 under the conveying action of the transmission roller 82, and then controls the conveying drive mechanism 83 to stop working through the limit switch 73, thus stopping the conveying of the tilting table 4.

Claims

1. A gearbox assembly and conveying system, characterized in that: The system includes a conveying system, which comprises a base frame, one or more assembly conveying devices, a recycling conveying device, a tilting table for mounting the gearbox, two or more sliding frames, a sliding mechanism, and a limiting mechanism mounted on the assembly conveying device. The assembly conveying device and the recycling conveying device are used to transport the tilting table, and the sliding frames are used to transfer the tilting table between the assembly conveying device and the recycling conveying device. The limiting mechanism is used to limit the tilting table for different assembly processes on the assembly conveying device, thus separating the various assembly processes. The tilting base of the tilting table can rotate 360° along the vertical axis of the column. The tilting table includes a base plate, a column located in the middle of the base plate, rollers on the base plate, and a tilting seat located at the upper end of the column; the rollers are positioned to abut against the inner side wall of the frame; the tilting seat is provided with a rotating rod for hanging the gearbox, and a rotating handle for controlling the rotation of the rotating rod is provided on one side of the tilting seat. The assembly conveyor and the recycling conveyor are arranged side by side on the base frame. At each end of the base frame in the conveying direction of the assembly conveyor and the recycling conveyor, there is one or more sliding frames. The sliding frames are slidably mounted on the base frame by a sliding mechanism. The movement direction of the sliding frames is perpendicular to the movement direction of the tilting table on the assembly conveyor. The conveying directions of the assembly conveyor and the recycling conveyor are opposite. The sliding mechanism includes a guide rail mounted on the base frame and a pulley mounted on the bottom of the sliding frame. The pulley is slidably mounted on the guide rail. Guide rail limiting members are provided at both ends of the guide rail in the length direction for limiting the sliding frame. Abutment members are provided on both sides of the sliding frame corresponding to the guide rail limiting members. An upright plate is provided on the base frame between the assembly conveyor and the recycling conveyor; a first sensor is provided on the outside of the upright plate at the position corresponding to the assembly station of each assembly process; and three or more second sensors are provided on the inside of the upright plate. Both the first and second sensors are connected to a controller. The second sensor at the end of the vertical plate on the recycling conveyor detects whether there is a tilting table. If no tilting table is detected, the tilting table at the beginning of the recycling conveyor is continuously conveyed to the end of the recycling conveyor to ensure that there are continuously arranged tilting tables from the end to the beginning of the recycling conveyor. The empty tilting table is conveyed to the sliding frame at the end of the recycling conveyor by the recycling conveyor. When there is an empty sliding frame at the end of the recycling conveyor, the empty tilting table can be sent to the sliding frame. The sliding frame then moves to the beginning position of the assembly conveyor and hangs the gearbox to be assembled on the empty tilting table. The sliding frame located at the beginning of the assembly conveyor moves from the beginning of the assembly conveyor to the end of the recycling conveyor. When the end of the recycling conveyor detects a sliding frame, the tilting table located at the end of the recycling conveyor moves forward onto the sliding frame; otherwise, the recycling conveyor does not move. When there is a tilting table on the sliding frame at the beginning of the assembly conveyor, the sliding frame is moved to the beginning of the assembly conveyor, and the tilting table is transferred to the beginning of the assembly conveyor via the sliding frame. When a sliding frame moves to one end of the assembly conveyor, the abutment on one side of the sliding frame abuts against the guide rail limiting member. When a sliding frame moves to one end of the recycling conveyor, the abutment on one side of the sliding frame abuts against the abutment on another sliding frame located at one end of the assembly conveyor.

2. The gearbox assembly and conveying system according to claim 1, characterized in that: The assembly conveying device includes a frame and a conveying assembly. The conveying assembly includes conveying groups equal to the number of processes. Each conveying group includes one or more conveying mechanisms. Each conveying mechanism includes two or more conveying rollers and a conveying drive mechanism. The conveying rollers are mounted in the frame via bearings. The axes of adjacent conveying rollers are on the same plane. The upper edge of the frame is higher than the highest point of the conveying rollers. The conveying mechanism is mounted on the frame and drives the conveying rollers. The recycling conveying device includes a recycling frame and a recycling conveying assembly. The recycling conveying assembly includes two or more recycling conveying groups. Each recycling conveying group includes one or more recycling mechanisms. Each recycling conveying mechanism includes two or more recycling rollers and a recycling drive mechanism. The recycling rollers are mounted in the recycling frame via bearings. The axes of adjacent recycling rollers are on the same plane. The upper edge of the recycling frame is higher than the highest point of the recycling rollers. The recycling mechanism is mounted on the recycling frame and drives the recycling rollers.

3. The gearbox assembly and conveying system according to claim 2, characterized in that: The conveying drive mechanism includes a first motor, a first driving sprocket, a first driven sprocket, a conveying driven sprocket, a first driving chain, and a first driven chain. The first motor is mounted on a frame, the first driving sprocket is mounted on the output shaft of the first motor, a first driven sprocket is mounted on one of the conveying rollers of the same conveying mechanism, a first driving chain is sleeved between the first driving sprocket and the first driven sprocket, a conveying driven sprocket is mounted on the conveying roller, and a first driven chain is sleeved between adjacent conveying driven sprockets. The recycling conveying drive mechanism includes a second motor, a second driving sprocket, a second driven sprocket, a recycling driven sprocket, a second driving chain, and a second driven chain. The second motor is mounted on a recycling frame, the second driving sprocket is mounted on the output shaft of the second motor, a second driven sprocket is mounted on one of the recycling conveying rollers of the same recycling conveying mechanism, a second driving chain is sleeved between the second driving sprocket and the second driven sprocket, a recycling driven sprocket is mounted on the recycling conveying roller, and a second driven chain is sleeved between adjacent recycling driven sprockets.

4. The gearbox assembly and conveying system according to claim 1, characterized in that: The sliding frame is also equipped with a sliding drive device for driving the sliding frame.

5. The gearbox assembly and conveying system according to claim 1, characterized in that: The limiting mechanism includes a telescopic mechanism and a telescopic rod disposed on the telescopic mechanism; when it is necessary to limit the tilting table, the telescopic mechanism is controlled to drive the telescopic rod to extend until the end of the telescopic rod is higher than the highest point of the conveying roller.

6. The gearbox assembly and conveying system according to claim 5, characterized in that: The end of the telescopic rod is also equipped with a limit switch, which is used to control the conveying drive mechanism.

7. The gearbox assembly and conveying system according to claim 1, characterized in that: There are two assembly conveying devices, which are respectively located on both sides of the recycling conveying device.

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