Heavy transmission assembly line

Abstract

The utility model relates to the technical field of automobile transmission assembly, in particular to a heavy transmission assembly line. The assembly line comprises a final assembly production line, a split charging line and a transfer mechanism, the final assembly production line comprises a conveying line, a plurality of final assembly stations are arranged on the conveying line, a final assembly tray is connected to the conveying line, and a first turnover machine is arranged on the final assembly tray. The sub-packaging lines are located on one side of the conveying line, the multiple sub-packaging lines are arranged in the conveying direction of the conveying line, and second turnover machines are arranged on part of the sub-packaging lines. By means of the assembly line, after part of parts of the transmission are assembled on the split charging line, the parts assembled on the split charging line are transferred to the final assembly station through the transfer mechanism to be assembled. And manual operation is replaced by mechanical operation for overturning and transferring the parts of the heavy transmission, so that the labor intensity is reduced. In addition, the split charging line and the general assembly line are reasonably arranged, so that line production and mutual cooperation of workers among stations are facilitated, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile transmission assembly, in particular to a heavy-duty transmission assembly line. Background Art

[0002] The automobile transmission is one of the core components of the automobile, and plays an important role in the performance and quality of the vehicle. Among them, the heavy-duty transmission is a transmission designed for heavy-duty commercial vehicles and large buses. In recent years, my country's own brand of automobiles has developed rapidly in the domestic market and occupied a place. Domestic transmission manufacturers are also facing the need to increase production capacity and quality, which puts higher requirements on the assembly process of the transmission. The automobile transmission assembly process is a process of sequential assembly of transmission parts. Due to the complicated process, the assembly line is extremely critical in the entire production process.

[0003] At present, the traditional transmission assembly line has a lot of manual participation, and the heavy weight of the heavy transmission itself and its accessories makes manual handling and flipping difficult, which seriously affects production efficiency. Utility Model Content

[0004] The utility model provides a heavy-duty transmission assembly line, aiming to solve the problem of difficulty in manually carrying and turning over the heavy-duty transmission during production in a traditional transmission assembly line.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A heavy-duty transmission assembly line includes a general assembly line, a subassembly line and a transfer mechanism;

[0007] The final assembly line comprises a conveyor line, a plurality of final assembly stations are arranged on the conveyor line, a final assembly pallet is connected to the conveyor line, and a first turning machine is arranged on the final assembly pallet;

[0008] The sub-packaging line is located on one side of the conveying line, and a plurality of sub-packaging lines are provided along the conveying direction of the conveying line, and a second turning machine is provided on some of the sub-packaging lines;

[0009] The transfer mechanism is used to transfer the product components on the sub-assembly line to the final assembly station.

[0010] By adopting the above scheme, when the parts of the transmission are assembled on the sub-assembly line, they are flipped by the second flipping machine, so as to adjust the posture of the parts and facilitate the workers to assemble the parts. After some parts of the transmission are assembled on the sub-assembly line, the parts assembled on the sub-assembly line are transferred to the conveyor line for assembly by the transfer mechanism. After the parts are transferred to the conveyor line, they are flipped by the first flipping machine, so as to adjust the posture of the parts and facilitate the workers to assemble the parts. Since the final assembly pallet can be transported on the conveyor line, it replaces manual transfer, which is convenient for workers to work in an assembly line on the conveyor line. Since the flipping and transfer of the parts of the heavy-duty transmission are all done by machinery instead of manual operation, the labor intensity of the workers is reduced. In addition, the layout of the sub-assembly line and the final assembly line is reasonable, which is convenient for assembly line operation and the cooperation between the workers at each workstation, thereby improving production efficiency.

[0011] The utility model is further configured such that there are two conveyor lines, the conveying directions of the two conveyor lines are opposite, a translation vehicle is provided between the corresponding ends of the two conveyor lines, and the two conveyor lines and the two translation vehicles together form a circular assembly line. When the final assembly pallet is conveyed to the end of the first conveyor line, the transmission assembly is completed, at which time the pallet and the first flipping machine are transported to the second conveyor line by the corresponding translation vehicle, and the pallet and the corresponding first flipping machine are transported to the end of the second conveyor line by the second conveyor line in the reverse direction; the end of the second conveyor line corresponds to the starting end of the first conveyor line, and the pallet and the corresponding first flipping machine are transported to the starting end of the first conveyor line by the translation vehicle corresponding to the end of the second conveyor line, thereby completing the circular assembly line operation of the first flipping machine. A pallet and a first flipping machine are provided at each final assembly station on the first conveyor line, and the staff perform corresponding assembly work at their respective stations, thereby forming a circular assembly line and improving production efficiency.

[0012] The utility model is further configured to include a work platform, which is located on a side of the conveyor line where the final assembly station is located near the sub-assembly line. Since the overall size of the heavy-duty transmission is large and the height is high, the work platform can provide an operator with a convenient height for operation, thereby facilitating the operator to perform assembly operations.

[0013] The utility model is further configured that the subassembly line is provided with a press-fit device and a screw tightening device. When the transmission parts are assembled on the subassembly line, the press-fitting operation is completed by the press-fitting device, and the screw tightening operation is completed by the screw tightening device, which is simple and convenient to operate.

[0014] The utility model is further configured that the transfer mechanism includes a transfer frame, a movable frame, a hoist, a transverse drive assembly and a longitudinal drive assembly;

[0015] The movable frame is slidably mounted on the transfer frame;

[0016] The elevator is slidably mounted on the movable frame, and the sliding direction of the elevator relative to the movable frame and the sliding direction of the movable frame relative to the transfer frame are perpendicular to each other;

[0017] The transverse drive assembly is used to drive the lifting machine to slide on the movable frame;

[0018] The longitudinal drive assembly is used to drive the movable frame to slide on the transfer frame. When it is necessary to transfer the parts assembled on the subassembly line to the final assembly line for assembly, the corresponding parts are lifted vertically by the hoist, the longitudinal position of the hoist is positioned by the longitudinal drive assembly, and the horizontal position of the hoist is positioned by the horizontal drive assembly, thereby positioning the hoist on the plane, so as to facilitate the hoist to be moved from the subassembly line to the corresponding position on the final assembly line.

[0019] The utility model is further configured that the conveyor line includes a roller frame and a conveyor drive assembly, a plurality of conveyor rollers arranged at intervals are rotatably mounted on the roller frame, and the conveyor drive assembly is used to drive all the conveyor rollers to rotate. The conveyor drive assembly drives all the conveyor rollers to rotate, thereby driving the final assembly pallets placed on the conveyor rollers to be transported along the flow direction.

[0020] The utility model is further configured such that a plurality of cylinders corresponding to the assembly stations are fixedly connected to the roller frame, and the piston rods of the cylinders are fixedly connected to limit blocks, and the limit blocks can be moved to the movement path of the assembly pallet. The limit blocks are driven by the cylinders to move to the movement path of the assembly pallet, and the assembly pallet and the corresponding first turning machine can be limited to the corresponding assembly station by limiting the movement of the assembly pallet along the conveying direction of the conveyor line, so as to facilitate the assembly work of the staff at the corresponding assembly station.

[0021] The utility model is further configured such that a lifting unit corresponding to each of the final assembly stations is provided below the conveyor line, and the lifting unit is used to lift the final assembly pallet upwards. When the limit block restricts the final assembly pallet from moving along the conveyor line, the corresponding lifting unit can lift the final assembly pallet upwards. Since the lifting unit can lift the final assembly pallet upwards, the final assembly pallet is separated from the conveyor line, thereby preventing the conveyor line from continuously generating friction on the final assembly pallet, and preventing the conveyor line from continuously generating wear between the final assembly pallet and the final assembly pallet.

[0022] The utility model is further configured such that the lifting unit includes a hydraulic cylinder, the output end of the hydraulic cylinder is fixedly connected to a lifting frame, the lifting frame is provided with a plurality of lifting columns, and the lifting columns can vertically pass through the conveyor line. Since the lifting columns can pass through the gap between two adjacent conveyor rollers when lifting upward, the plurality of lifting columns will simultaneously support the lower surface of the final assembly pallet, thereby lifting the final assembly pallet upward, so that the final assembly pallet is out of contact with the conveyor line, and friction loss between the conveyor line and the final assembly pallet is avoided.

[0023] The utility model is further configured such that the lifting column is fixedly connected with a positioning pin, and a positioning hole corresponding to the positioning pin is opened on the lower side of the final assembly pallet. When the limit block restricts the final assembly pallet from moving along the conveyor line, the positioning pin can be inserted upward into the corresponding positioning hole. The positioning pin is driven by the hydraulic cylinder to be inserted into the corresponding positioning hole, so as to achieve accurate positioning of the final assembly pallet and the first turning machine, which is convenient for assembly operation. In addition, since there is a certain matching length between the positioning pin and the positioning groove, the anti-overturning ability of the final assembly pallet and the first turning machine is enhanced.

[0024] In summary, the heavy-duty transmission assembly line provided by the utility model has at least the following beneficial effects:

[0025] 1. Reduce the difficulty of manual operation of flipping and transferring transmission parts.

[0026] 2. The overall layout of the assembly line is reasonable, which is convenient for operators to operate and improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any novel labor.

[0028] Figure 1 is a schematic diagram of the three-dimensional structure of an embodiment;

[0029] Figure 2 is a top view of an embodiment;

[0030] Figure 3 It is a three-dimensional structural diagram of the final assembly line;

[0031] Figure 4 This is a top view of the final assembly line;

[0032] Figure 5 is a left view of the embodiment (with the safety fence hidden);

[0033] Figure 6 It is a three-dimensional structural diagram of the conveyor line;

[0034] Figure 7 This is a three-dimensional structural diagram of a conveyor line;

[0035] Figure 8 It is a side view of the conveyor line;

[0036] Fig. 9 yes Figure 8 Sectional view at aa in the middle;

[0037] Fig.10 It is a three-dimensional structural schematic diagram of a translation vehicle;

[0038] Fig.11 It is a three-dimensional structural schematic diagram of the transfer mechanism;

[0039] Fig.12 It is a three-dimensional structural diagram of the tightening equipment;

[0040] Figure 13-16 The three-dimensional structural schematic diagrams of the OP01, OP02, OP03 and OP04 assembly lines are shown in sequence.

[0041] The reference numerals in the figure are: 1. conveyor line, 101. roller frame, 102. conveyor roller, 103. conveyor drive assembly, 104. cylinder, 105. limit block, 2. final assembly tray, 3. positioning hole, 4. first turning machine, 5. lifting unit, 501. hydraulic cylinder, 502. lifting frame, 503. lifting column, 504. positioning pin, 6. sub-assembly line, 601. sub-assembly frame, 602. roller, 603. operating lever, 604, stopper, 7. sub-assembly tray, 8. second turning machine , 9. Transfer mechanism, 901. Transfer rack, 902. Movable rack, 903. Hoist, 904. Horizontal drive assembly, 905. Longitudinal drive assembly, 10. Translation vehicle, 1001. Fixed rack, 1002. Loading platform, 11. Cache platform, 12. Working platform, 13. Stairs, 14. Lifting platform, 15. Material rack, 16. Pressing equipment, 17. Screw tightening equipment, 1701. Reaction arm, 1702. Tightening gun, 18. Safety fence, 19. Oven. DETAILED DESCRIPTION

[0042] In order to make those skilled in the art better understand the technical solution of the utility model, the following Figure 1-16 The utility model is further described in detail with specific implementation methods.

[0043] See also Figure 1-16The present embodiment provides a heavy-duty transmission assembly line, including a general assembly line, a subassembly line and a transfer mechanism, wherein the general assembly line, the subassembly line and the transfer mechanism are all arranged on the ground, and the subassembly line is located in front of the general assembly line. The general assembly line includes two parallel conveyor lines 1, and the two conveyor lines 1 are arranged at intervals along the front and rear directions. The conveyor line 1 is composed of multiple sections of conveyor lines 1 to form a longer conveyor line 1, and the length of the conveyor line 1 can be adjusted by increasing or decreasing the number of sections. The conveying directions of the front and rear conveyor lines 1 are opposite. Specifically, the conveyor line 1 located at the front side conveys from right to left, and the conveyor line 1 located at the rear side conveys from left to right. The two conveyor lines 1 are arranged in parallel, and a translation vehicle 10 is arranged between the corresponding ends of the two conveyor lines 1. The two conveyor lines 1 and the two translation vehicles 10 together form a circular assembly line. A buffer platform 11 is also provided on the left side of the translation vehicle 10 located on the left side for temporarily storing unqualified products. Safety fences 18 are provided on the left and right sides and the rear side of the general assembly line. The conveyor line 1 located at the front side is provided with several assembly stations. In this embodiment, five assembly stations are preferably provided, and the five assembly stations are arranged at intervals along the conveying direction of the conveyor line 1 at the front side. The five assembly stations are numbered from right to left as assembly 01, assembly 02, assembly 03, assembly 04 and assembly 05. Among them, assembly 01 is used for the assembly of the mid-range gear ring assembly and the shaft, the assembly of the mid-range retaining ring, and the assembly of the mid-range brake; assembly 02 is used for the assembly of the mid- and low-range oil cylinders and the low planetary gear assembly; assembly 03 is used for the assembly of the rear cover assembly and the assembly of the high transfer brake assembly; assembly 04 is used for the assembly of the transmission torque converter; and assembly 05 is used for the assembly of external accessories. The conveyor line 1 is connected with an assembly tray 2, and the assembly tray 2 is provided with a first flipping machine 4, and the first flipping machine 4 is fixedly connected to the assembly tray 2. Several sub-assembly lines 6 are arranged at intervals along the conveying direction of the conveyor line 1 at the front side, and some of the sub-assembly lines 6 are provided with second flipping machines 8. Among them, the second flipping machine 8 can be set on each sub-assembly line 6, or on some of the sub-assembly lines 6, and is specifically set according to the requirements of the sub-assembly line 6. If the weight of the assembled parts on the sub-assembly line 6 is light, the second flipping machine 8 may not be set for cost considerations. In this embodiment, four sub-assembly lines 6 are preferably set, and the sub-assembly lines 6 are arranged at intervals from right to left. The four sub-assembly lines 6 are numbered OP01, OP02, OP03 and OP04 from right to left, and the four sub-assembly lines 6 correspond to final assembly 01, final assembly 02, final assembly 03 and final assembly 04 from right to left. Among them, OP01 subassembly line 6 is used for the assembly of high-end clutch assemblies and housings of heavy-duty transmissions; OP02 subassembly line 6 is used for the assembly of medium- and low-end oil cylinders and medium-end planetary gear assemblies; OP03 subassembly line 6 is used for the assembly of rear cover assemblies, low-transfer clutch assemblies, and drive hub locking clutch assemblies; OP04 subassembly line 6 is used for the assembly of torque converter housings and accessory assemblies, turbine output shaft assemblies, front cover assemblies, and torque converter assemblies. The transfer mechanism 9 is used to transfer product components on the subassembly line 6 to the final assembly station.

[0044] Through the above scheme, when the parts of the transmission are assembled on the sub-assembly line 6, they are turned over by the second turning machine 8, so as to adjust the posture of the parts and facilitate the workers to assemble the parts. After some parts of the transmission are assembled on the sub-assembly line 6, the product parts assembled on the sub-assembly line 6 are transferred to the final assembly station on the conveyor line 1 for assembly by the transfer mechanism 9. After the product parts are transferred to the conveyor line 1, they are turned over by the first turning machine 4, so as to adjust the posture of the parts and facilitate the workers to assemble the parts. Since the final assembly pallet 2 can be transported on the conveyor line 1, it replaces manual transfer, which is convenient for workers to work in an assembly line on the conveyor line 1. Since the turning and transfer of the parts of the heavy-duty transmission are all replaced by machinery instead of manual operation, the labor intensity of the workers is reduced. In addition, the layout of the sub-assembly line 6 and the final assembly line is reasonably set, which is convenient for assembly line operation and the cooperation between the workers at each station, thereby improving production efficiency. When the heavy-duty transmission is assembled at the final assembly station 05, the final assembly pallet 2 and the first turning machine 4 are transported to the second conveyor line 1 by the corresponding translation vehicle 10, and then transported in the reverse direction by the second conveyor line 1, so that the final assembly pallet 2 and the corresponding first turning machine 4 are transported to the right end of the second conveyor line 1; the end of the second conveyor line 1 corresponds to the starting end of the first conveyor line 1, and the final assembly pallet 2 and the corresponding first turning machine 4 are transported to the starting end of the first conveyor line 1 by the translation vehicle 10 corresponding to the end of the second conveyor line 1, so as to complete the circular assembly line operation of the first turning machine 4. Each final assembly station on the first conveyor line 1 is provided with a final assembly pallet 2 and a first turning machine 4, and the staff perform corresponding assembly work at their respective stations, thereby forming a circular assembly line and improving production efficiency. During assembly, the assembled parts on the sub-assembly line 6 are moved to the corresponding final assembly station through the transfer mechanism 9. After the assembly at the final assembly station is completed, they are transferred to the next final assembly station through the conveyor line 1. The above process is repeated, and finally the reassembled transmission is assembled at the final assembly station 05.

[0045] The sub-assembly line 6 is provided with a press-fitting device 16 and a screw tightening device 17, and the length direction of the sub-assembly line 6 is perpendicular to the length direction of the conveyor line 1. In order to facilitate the screw tightening process, a screw tightening device 17 is also provided between the two conveyor lines 1. The screw tightening device 17 is a prior art, including a reaction arm 1701 and a tightening gun 1702 connected to each other, and is used to tighten the screws during assembly.

[0046] In some embodiments, specifically, the subassembly line 6 includes a subassembly frame 601, on which a plurality of rotatable rollers 602 are provided along the length direction, and a subassembly tray 7 is provided on the subassembly line 6. The subassembly tray 7 is used to carry the components of the heavy transmission, and the subassembly tray 7 is placed on the rollers 602. The subassembly tray 7 can move along the length direction of the subassembly frame 601 through the rollers 602. When assembling components, the staff can easily move the components on the subassembly line 6 by pulling the subassembly tray 7, so as to facilitate assembly work at various workstations on the subassembly line 6.

[0047] In order to facilitate the sub-packaging tray 7 to stop at each station on the sub-packaging line 6, an operating rod 603 is hinged on the sub-packaging frame 601, and one end of the operating rod 603 is fixedly connected to a stopper 604, which is located on the inner side of the sub-packaging frame 601. By pulling the operating rod 603, the stopper 604 can be driven to be located on the movement path of the sub-packaging tray 7, and the stopper 604 blocks the sub-packaging tray 7, thereby blocking the sub-packaging tray 7 at each station to resist the impact force generated by the sub-packaging tray 7 when dragging the sub-packaging tray 7, thereby reducing the physical burden of the staff. Among them, the OP01 subassembly line 6 is provided with a press-fitting device 16, a screw tightening device 17 and a second turning machine 8 from front to back; the OP02 subassembly line 6 is provided with a screw tightening device 17 and a press-fitting device 16 from front to back; the OP03 subassembly line 6 is provided with a screw tightening device 17 and a press-fitting device 16 from front to back; the OP04 subassembly line 6 is provided with a second turning machine 8, a press-fitting device 16 and a second turning machine 8 from front to back. The first turning machine 4, the second turning machine 8, the press-fitting device 16 and the screw tightening device 17 in this embodiment are all prior art, wherein the first turning machine 4 can realize the turning of parts, and the second turning machine 8 can realize both the turning of parts and the lifting of parts; in addition, the press-fitting device 16 is used for the pressing of bearings and other parts, and its specific structure will not be repeated.

[0048] See also Figure 3 and Figure 4 In order to facilitate the operation of the staff at the final assembly station, it further includes a work platform 12, and the work platform 12 is a corridor-type. Specifically, the work platform 12 is located on the outside of the conveyor line 1 with the final assembly station, and the front side of the conveyor line 1 with the final assembly station is the outside, and the rear side is the inside. The work platform 12 is used to raise the height of the area where the staff are located, and provide a platform for the staff to conveniently operate at the final assembly station. The corridor-type work platform 12 is arranged along the length direction of the conveyor line 1, and the left and right sections are provided with stairs 13 connected to the ground. A lifting platform 14 is provided on the front side of the work platform 12, and the lifting platform 14 is used to lift the ingredients of the heavy-duty transmission from the ground to the work platform 12, so as to facilitate loading to the work platform 12. A material rack 15 is also provided on the front side of the work platform 12, and the materials used to assemble the heavy-duty transmission are stored on the material rack 15.

[0049] See also Figure 5 and Fig.11 In some embodiments, the transfer mechanism 9 includes a transfer frame 901, a movable frame 902, a hoist 903, a transverse drive assembly 904, and a longitudinal drive assembly 905. The movable frame 902 is slidably mounted on the transfer frame 901 along the front-back direction, and the movable frame 902 is specifically a track beam, and the length direction of the track beam is arranged along the left-right direction; the hoist 903 is slidably mounted on the movable frame 902 along the left-right direction, and the direction in which the hoist 903 slides relative to the movable frame 902 is perpendicular to the direction in which the movable frame 902 slides relative to the transfer frame 901. The transverse drive assembly 904 is used to drive the hoist 903 to slide on the movable frame 902; the longitudinal drive assembly 905 is used to drive the movable frame 902 to slide on the transfer frame 901. Both the transverse drive assembly 904 and the longitudinal drive assembly 905 are commonly used mechanisms in the prior art that are driven by a motor to move linearly, and the hoist 903 is a prior art that is used to vertically lift a heavy transmission or its parts. One transfer mechanism 9 can be set to cover all final assembly stations and subassembly lines 6, or multiple transfer mechanisms 9 can be set to cover subassembly lines 6 and corresponding final assembly stations. In this embodiment, two transfer mechanisms 9 are preferably set, one covering OP01 subassembly line, OP02 subassembly line, final assembly 01 and final assembly 02, and the other transfer mechanism 9 covering OP03 subassembly line, OP04 subassembly line, final assembly 03 and final assembly 04.

[0050] See also Figure 6-10In some embodiments, the conveyor line 1 includes a roller frame 101 and a conveyor drive assembly 103. A plurality of conveyor rollers 102 arranged at intervals are rotatably mounted on the roller frame 101. The conveyor drive assembly 103 is used to drive all the conveyor rollers 102 to rotate. The conveyor drive assembly 103 is a sprocket transmission structure driven by a motor commonly used in existing conveyor lines. A plurality of cylinders 104 corresponding to the final assembly stations are fixedly connected to the roller frame 101. The piston rods of the cylinders 104 are fixedly connected to the limit blocks 105. The limit blocks 105 can be moved to the movement path of the final assembly pallet 2. A lifting unit 5 corresponding to the final assembly station is provided below the conveyor line 1. The lifting unit 5 is used to lift the final assembly pallet 2 upward. When the limit blocks 105 limit the final assembly pallet 2 from moving along the conveyor line 1, the corresponding lifting unit 5 can lift the final assembly pallet 2 upward. The lifting unit 5 includes a hydraulic cylinder 501, and the output end of the hydraulic cylinder 501 is fixedly connected to a lifting frame 502. The lifting frame 502 is provided with a plurality of lifting columns 503, and the lifting columns 503 can vertically pass through the conveyor line 1. The lifting columns 503 are fixedly connected to positioning pins 504, and positioning holes 3 corresponding to the positioning pins 504 are opened on the lower side of the final assembly tray 2. When the limit block 105 restricts the final assembly tray 2 from moving along the conveyor line 1, the positioning pins 504 can be inserted upward into the corresponding positioning holes 3. Specifically, the lifting columns 503 are tubular and fixedly connected to the upper side of the lifting frame 502. The lifting frame 502 is provided with a through hole connected thereto, and the positioning pins 504 are fixedly connected in the lifting columns 503. When lifting upward, the lifting column 503 can pass through the gap between two adjacent conveying rollers 102. Multiple lifting columns 503 will simultaneously support the lower surface of the final assembly pallet 2, thereby lifting the final assembly pallet 2 upward, so that the final assembly pallet 2 is out of contact with the conveyor line 1, and friction loss between the conveyor line 1 and the final assembly pallet 2 is avoided. The positioning pin 504 is driven by the hydraulic cylinder 501 to be inserted into the corresponding positioning hole 3, so as to achieve accurate positioning of the final assembly pallet 2 and the first turning machine 4, which is convenient for assembly operations. In addition, since there is a certain matching length between the positioning pin 504 and the positioning groove, the anti-overturning ability of the final assembly pallet 2 and the first turning machine 4 is enhanced.

[0051] The translation vehicle 10 in this embodiment is used to transfer the final assembly pallet 2 between the two conveyor lines 1. The translation vehicle 10 includes a fixed frame 1001 and a loading platform 1002 sliding on the fixed frame 1001, and the loading platform 1002 is driven to slide on the fixed frame 1001 by a driving device such as a lead screw or a sprocket. Several conveying rollers similar to those of the conveyor line 1 are rotatably mounted on the loading platform 1002, and all the conveying rollers are also driven to rotate by the existing conveying drive assembly.

[0052] In order to facilitate the assembly of bearings and other parts, an oven 19 is also provided on the ground. The oven 19 is located on the right side of the OP01 subassembly line. The oven 19 is used for heating bearings and other parts.

[0053] It should be noted that the words indicating direction in this article, such as up and down, are all based on Figure 1 The setting of the direction is only for the convenience of description and has no other specific meaning.

[0054] It should also be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising" or any other variants thereof are intended to cover non-exclusive inclusion, so that an article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such article or device. In the absence of further restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the article or device including the above elements.

[0055] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A heavy-duty transmission assembly line, characterized in that: include: Final assembly line, sub-assembly line (6) and transfer mechanism (9); The final assembly line comprises a conveyor line (1), a plurality of final assembly stations are arranged on the conveyor line (1), a final assembly tray (2) is connected to the conveyor line (1), and a first turning machine (4) is arranged on the final assembly tray (2); The sub-packaging line (6) is located on one side of the conveying line (1), and a plurality of sub-packaging lines (6) are provided along the conveying direction of the conveying line (1), and a second turning machine (8) is provided on some of the sub-packaging lines (6); The transfer mechanism (9) is used to transfer the product components on the sub-assembly line (6) to the final assembly station.

2. A heavy-duty transmission assembly line as claimed in claim 1, characterized in that: The conveying lines (1) are provided with two, the conveying directions of the two conveying lines (1) are opposite, a translation vehicle (10) is provided between corresponding ends of the two conveying lines (1), and the two conveying lines (1) and the two translation vehicles (10) together form a circular assembly line.

3. A heavy-duty transmission assembly line as claimed in claim 1, characterized in that: It also comprises a working platform (12), wherein the working platform (12) is located on a side of the conveying line (1) provided with the final assembly station and close to the sub-assembly line (6).

4. A heavy-duty transmission assembly line as described in any one of claims 1-3, characterized in that: The sub-packaging line (6) is provided with a press-fitting device (16) and a screw tightening device (17).

5. A heavy-duty transmission assembly line as claimed in claim 4, characterized in that: The transfer mechanism (9) comprises a transfer frame (901), a movable frame (902), an elevator (903), a transverse drive assembly (904) and a longitudinal drive assembly (905); The movable frame (902) is slidably mounted on the transfer frame (901); The elevator (903) is slidably mounted on the movable frame (902), and the sliding direction of the elevator (903) relative to the movable frame (902) and the sliding direction of the movable frame (902) relative to the transfer frame (901) are perpendicular to each other; The lateral driving assembly (904) is used to drive the lifting machine (903) to slide on the movable frame (902); The longitudinal driving assembly (905) is used to drive the movable frame (902) to slide on the transfer frame (901).

6. A heavy-duty transmission assembly line as claimed in claim 1, characterized in that: The conveyor line (1) comprises a roller frame (101) and a conveying drive assembly (103); a plurality of conveying rollers (102) arranged at intervals are rotatably mounted on the roller frame (101); and the conveying drive assembly (103) is used to drive all the conveying rollers (102) to rotate.

7. A heavy-duty transmission assembly line as claimed in claim 6, characterized in that: The roller frame (101) is fixedly connected to a plurality of cylinders (104) corresponding one to one with the final assembly stations, and the piston rods of the cylinders (104) are fixedly connected to limit blocks (105), and the limit blocks (105) can be moved to the movement path of the final assembly tray (2).

8. A heavy-duty transmission assembly line as claimed in claim 7, characterized in that: A lifting unit (5) corresponding to each of the final assembly stations is provided below the conveyor line (1), and the lifting unit (5) is used to lift the final assembly pallet (2) upwards. When the limit block (105) restricts the final assembly pallet (2) from moving along the conveyor line (1), the corresponding lifting unit (5) can lift the final assembly pallet (2) upwards.

9. A heavy-duty transmission assembly line as claimed in claim 8, characterized in that: The lifting unit (5) comprises a hydraulic cylinder (501), the output end of the hydraulic cylinder (501) is fixedly connected to a lifting frame (502), and the lifting frame (502) is provided with a plurality of lifting columns (503), and the lifting columns (503) can vertically pass through the conveying line (1).

10. A heavy-duty transmission assembly line as claimed in claim 9, characterized in that: The lifting column (503) is fixedly connected with a positioning pin (504), and a positioning hole (3) corresponding to the positioning pin (504) is opened on the lower side of the final assembly tray (2). When the limit block (105) limits the movement of the final assembly tray (2) along the conveyor line (1), the positioning pin (504) can be inserted upward into the corresponding positioning hole (3).

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