Automatic assembly line for lead screw assembly

Abstract

The automatic assembly line comprises a frame body, a conveying belt is arranged on the frame body, and a lead screw feeding assembly, a bearing assembling assembly, a bevel gear assembling assembly, a lower shell assembling assembly, a shaft gear assembling assembly, an upper shell assembling assembly and a discharging assembly are sequentially arranged in the circumferential direction of the frame body in the length direction of the frame body; a plurality of tool plates are evenly arranged on the conveying belt, a plurality of bearing plates are arranged on the tool plates, bearing grooves are formed in the bearing plates, the bearing plates are arranged in two rows to form two stations, a shell installation table is installed on the tool plates, the shell installation table is installed at one end of one station in the length direction, and the shell installation table is installed at the other end of the other station in the length direction. A positioning block is arranged on the side, away from the shell installation table, of the station and fixedly arranged on the tool plate, and a wedge-shaped face is arranged at the end, away from the tool plate, of the positioning block. The lead screw assembly has the effect of simplifying positioning during assembly of the lead screw assembly.

Description

Technical Field

[0001] The present application relates to the field of screw assembly assembly, and in particular to an automatic assembly line for screw assemblies. Background Art

[0002] The screw assembly is a common power transmission component. The existing screw assembly includes a lower shell, in which a shaft gear and a screw are rotatably arranged. A bevel gear is installed on the screw. The screw is meshed with gears on the bevel gear and the shaft gear. The bevel gear and the shaft gear on the screw are both installed in the lower shell, and an upper shell is provided on the upper cover of the lower shell. The upper shell cover is arranged outside the bevel gear and the shaft gear on the screw.

[0003] During the assembly of the existing lead screw assembly, different parts need to be installed at different workstations. After the lead screw assembly is placed at each workstation, it needs to be positioned again to reduce assembly errors. The positioning process is relatively complicated. Summary of the invention

[0004] In order to simplify the positioning of the screw assembly during assembly, the present application provides an automatic assembly line for the screw assembly.

[0005] The present application provides an automatic assembly line for a lead screw assembly using the following technical solutions:

[0006] A screw assembly automatic assembly line comprises a frame, a conveyor belt is arranged on the frame, a screw feeding assembly, a bearing assembly assembly, a bevel gear assembly assembly, a lower housing assembly assembly, a shaft gear assembly assembly, an upper housing assembly assembly and a discharging assembly are arranged in sequence along the length direction of the frame circumference, a plurality of tooling plates are evenly arranged on the conveyor belt, a plurality of receiving plates are arranged on the tooling plates, receiving grooves are provided on the receiving plates, a plurality of receiving plates are arranged in two rows to form two workstations, a housing mounting platform is installed on the tooling plates, the housing mounting platform is installed at one end in the length direction of one of the workstations, a positioning block is arranged on the side of the workstation away from the housing mounting platform, the positioning block is fixed on the tooling plate, and a wedge-shaped surface is provided on the end of the positioning block away from the tooling plate.

[0007] By adopting the above technical solution, when the screw is placed in the work station, the screw is driven to slide by the guidance of the wedge surface until the screw is placed in the receiving plate, and the screw abuts the positioning block. One end of the screw is positioned by the positioning block to ensure that the other end of the screw is in a position where subsequent operations can be performed. At the same time, positioning blocks are set on both work stations. When the screw is transferred, no additional positioning is required, which facilitates subsequent assembly.

[0008] Optionally, a transplanting assembly is provided between the shaft-gear assembly assembly and the upper shell assembly assembly, and the transplanting assembly includes a transplanting robot, and the transplanting robot transplants the lead screw from a workstation without a shell mounting platform to a workstation with a shell mounting platform installed.

[0009] By adopting the above technical solution, after the shaft gear is assembled in the lower housing, the transplanting component can place the lead screw assembled with the bevel gear in the lower housing to connect with the shaft gear.

[0010] Optionally, a limiting rod is slidably provided on the receiving plate, and the limiting rod is blocked at the receiving groove opening by sliding.

[0011] By adopting the above technical solution, the limit rod limits the movement of the lead screw by sliding against the side of the lead screw away from the receiving groove, thereby reducing the probability of the lead screw being offset during the conveying process and reducing subsequent assembly errors.

[0012] Optionally, a driving rod is slidably provided at the bottom of the receiving groove, and the driving rod is received into the receiving plate or extends into the receiving groove by sliding. A linkage rod is hinged on the driving rod, and the other end of the linkage rod is hinged to the limit rod. When the driving rod is received into the receiving plate, the linkage rod drives the limit rod to drive the limit rod to slide and block the opening of the receiving groove.

[0013] By adopting the above technical solution, the arrangement of the driving rod can drive the limiting rod after the lead screw is placed, thereby achieving reinforcement of the lead screw.

[0014] Optionally, the receiving plate includes a fixed plate and a sliding plate, the fixed plate is fixed on the tooling plate, the sliding plate is slidably set on the fixed plate, the driving rod and the limiting rod are both installed on the sliding plate, and the sliding plates of the receiving plate at the same workstation are connected to each other through a connecting plate, and when the transplanting robot clamps the screw, it abuts against the connecting plate to drive the sliding plate to slide.

[0015] By adopting the above technical solution, the receiving plate is called a fixed plate and a sliding plate, and the sliding plate can cooperate with the robot for placing or removing the screw through the sliding of the sliding plate, so that the limit rod can reinforce the screw after the screw is placed, and cancel the reinforcement of the screw before the screw needs to be taken out, thereby facilitating the placement, reinforcement and removal of the screw.

[0016] Optionally, an oiling component is provided between the upper shell assembly component and the discharge component, and the oiling component applies lubricating oil to the lead screw.

[0017] By adopting the above technical solution, lubricating oil is applied to the surface of the lead screw through the oil coating component, so that the lead screw is smoother during subsequent use.

[0018] Optionally, a support plate is provided on the tooling plate, and the support plate is arranged on the side of the tooling plate away from the shell mounting platform in the length direction of the tooling plate. A support groove is opened on the support plate, and another shell mounting platform is provided at the end of the tooling plate in the length direction where the support plate is not installed.

[0019] By adopting the above technical solution, the support plate and the housing mounting platform can support the assembled screw assembly, thereby facilitating the oiling of the oiling assembly, and the housing mounting platform also has the effect of positioning the screw.

[0020] Optionally, a travel switch is provided on the frame, and the conveying of the conveyor belt is stopped after the tooling plate slides and hits the travel switch.

[0021] By adopting the above technical solution, the setting of the travel switch can position the tooling plate, so that the tooling plate stops being transported when it moves to the designated working area, thereby facilitating the assembly of the screw assembly.

[0022] In summary, the present application includes at least one of the following beneficial technical effects:

[0023] 1. When the lead screw is placed in the workstation, the wedge-shaped surface guides the lead screw to slide until the lead screw is placed in the receiving plate, and the lead screw abuts against the positioning block. The positioning block is used to position one end of the lead screw, thereby ensuring that the other end of the lead screw is in a position where subsequent operations can be performed. At the same time, positioning blocks are set on both workstations. When transferring the lead screw, no additional positioning is required, which is convenient for subsequent assembly;

[0024] 2. After the shaft gear is assembled in the lower housing, the transplanting assembly can place the lead screw with the bevel gear assembled in the lower housing and connect it to the shaft gear;

[0025] 3. The limit rod limits the movement of the lead screw by sliding against the side of the lead screw away from the receiving groove, thereby reducing the probability of the lead screw being offset during the conveying process and reducing subsequent assembly errors;

[0026] 4. The setting of the driving rod can drive the limit rod after the lead screw is placed, so as to realize the reinforcement of the lead screw; the receiving plate is called a fixed plate and a sliding plate, which can cooperate with the manipulator for placing or removing the lead screw through the sliding of the sliding plate, so that the limit rod can reinforce the lead screw after the lead screw is placed, and cancel the reinforcement of the lead screw before the lead screw needs to be removed, which is convenient for the placement, reinforcement and removal of the lead screw;

[0027] 5. The setting of the travel switch can position the tooling plate, so that the tooling plate stops conveying when it moves to the designated working area, which is convenient for the assembly of the screw assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of this embodiment.

[0029] Figure 2 It is a schematic diagram of the structure of the tooling plate of this embodiment.

[0030] Figure 3 yes Figure 2 Magnified view of part A in the middle.

[0031] Figure 4 It is a schematic diagram of the overall structure of this embodiment from another perspective.

[0032] Figure 5 yes Figure 1 Magnified view of part B in the middle.

[0033] Figure 6 yes Figure 4 Magnified view of section C in the middle.

[0034] Figure 7 yes Figure 1 Magnified view of section D in the middle.

[0035] Figure 8 yes Figure 1 Magnified view of part E in the middle.

[0036] Fig. 9 yes Figure 1 Magnified view of part F in the middle.

[0037] Fig.10 yes Figure 4 Magnified view of section G in the middle.

[0038] Fig.11 It is a schematic diagram of the overall structure of this embodiment from other viewing angles.

[0039] Fig.12 yes Fig.11 Magnified view of the middle H section.

[0040] Fig.13 yes Fig.11 Magnified view of middle part I.

[0041] Fig.14 yes Fig.11 Magnified view of the middle J.

[0042] Explanation of the reference numerals: 1. frame; 2. conveyor belt; 3. screw feeding assembly; 31. feeding rack; 32. feeding hopper; 33. feeding robot; 4. bearing assembly assembly; 41. receiving bin; 411. containing cylinder; 412. bearing table; 42. bearing assembly rack; 43. bearing assembly robot; 5. bevel gear assembly assembly; 51. bevel gear vibration plate; 52. bevel gear placement table; 53. bevel gear mounting frame; 54. bevel gear robot; 6. lower shell assembly assembly; 61. lower shell vibration plate; 62. lower shell placement table; 63. lower shell mounting frame; 64. lower shell robot; 7. shaft gear assembly assembly; 71. shaft gear discharge table; 72. shaft gear mounting frame; 73. shaft gear robot; 8. upper shell assembly assembly ;81. Upper shell vibration plate;82. Upper shell placement table;83. Upper shell mounting frame;84. Upper shell manipulator;9. Discharging assembly;91. Discharging rack;92. Discharging manipulator;10. Tooling plate;11. Receiving plate;111. Fixed plate;112. Sliding plate;12. Receiving groove;13. Shell mounting table;14. Positioning block;15. Wedge surface;16. Transplanting assembly;161. Transplanting rack;162. Transplanting manipulator;17. Limit rod;18. Driving rod;19. Linkage rod;20. Reset spring;21. Elastic member;22. Oiling assembly;221. Oiling rack;222. Oiling drive group;223. Precision oiling valve;23. Support plate;24. Support groove;25. Travel switch;26. Connecting plate. DETAILED DESCRIPTION

[0043] The following is combined with Figure 1-14 This application is described in further detail.

[0044] First of all, it should be noted that in the description of this application, if the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and other directional words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application; in addition, if the terms "first", "second", "third" and other numerical quantifiers appear, they are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", and "connected" appear, they should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection, a limited connection such as an interference fit, a transition fit, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0045] The present application discloses an automatic assembly line for a lead screw assembly, referring to Figure 1 and Figure 2 , including a frame 1 erected on the ground in a straight line, a conveyor belt 2 is arranged on the frame 1 through a transmission roller, the conveyor belt 2 is transported along the length direction of the frame 1, and a screw feeding assembly 3, a bearing assembly assembly 4, a bevel gear assembly assembly 5, a lower shell assembly assembly 6, a shaft gear assembly assembly 7, an upper shell assembly assembly 8 and a discharging assembly 9 are sequentially arranged along the length direction of the frame 1 in the circumference of the frame 1, and a plurality of tooling plates 10 are evenly arranged on the conveyor belt 2, and a plurality of receiving plates 11 are arranged on the tooling plate 10, and a receiving groove 12 is opened on the receiving plate 11. In this embodiment, six receiving plates 11 are arranged, which are divided into two rows along the width direction of the tooling plate 10, and three receiving plates 11 are arranged in each row. The three receiving plates 11 in each row are evenly arranged to form a station for placing the screw, and one of the two stations is arranged near the plate body. One end is at the width direction, and the other is at the center of the plate body. A shell mounting platform 13 is installed on the tooling plate 10. The shell mounting platform 13 is installed at one end of the length direction of the workstation at the center of the plate body. A positioning block 14 is arranged on the side of the workstation away from the shell mounting platform 13. The positioning block 14 is fixed on the tooling plate 10, and a wedge-shaped surface 15 is provided on the end of the positioning block 14 away from the tooling plate 10; when the lead screw is placed in the workstation, the lead screw is driven to slide by the guidance of the wedge-shaped surface 15 until the lead screw is placed in the receiving plate 11, and the lead screw abuts the positioning block 14, and one end of the lead screw is positioned by the positioning block 14, so as to ensure that the other end of the lead screw is in a position where subsequent operations can be performed. At the same time, positioning blocks 14 are arranged on the two workstations. When the lead screw is transferred, no additional positioning is required, which is convenient for subsequent assembly.

[0046] Reference Figure 1 and Figure 5 The screw feeding assembly 3 includes a feeding rack 31, a feeding hopper 32 and a feeding robot 33. The feeding rack 31 is erected on the ground and arranged above the frame 1. The feeding hopper 32 is placed on the ground on one side of the width direction of the frame 1. The feeding robot 33 is installed on the feeding rack 31. The feeding hopper 32 includes a bucket body that receives the screw and a transfer platform arranged on the bucket body. The bucket body is provided with a cylinder, and a screw in the bucket body is lifted and transported to the transfer platform by the cylinder drive, and then the screw is pushed to a position where the feeding robot 33 can clamp it by pushing the cylinder on the transfer platform. The feeding robot 33 includes a cylinder group driven along the length, width and height directions of the frame 1 and a gripper cylinder installed on the cylinder group. The gripper cylinder is driven by the three-axis driven cylinder group, and the screw is transferred from the feeding hopper 32 to the workstation on the tooling plate 10 that does not have a shell mounting platform 13 by clamping and lowering the gripper cylinder.

[0047] Reference Figure 4 and Figure 6The bearing assembly component 4 includes a bearing bin 41, a bearing assembly frame 42 and a bearing assembly manipulator 43. The bearing bin 41 is arranged on one side of the frame 1 in the width direction. The bearing assembly frame 42 is mounted above the frame 1. The bearing assembly manipulator 43 is installed on the bearing assembly frame 42. The bearing bin 41 includes a receiving tube 411 and a bearing platform 412. The receiving tube 411 has a plurality of receiving tubes. The plurality of receiving tubes 411 are evenly mounted on the bearing platform 412. The bearing is placed in the receiving tube 411. The bearing falls from the bottom of the receiving tube 411 to the bearing platform 412. A cylinder is arranged on the accommodating table, and the cylinder pushes the bearing dropped onto the bearing table 412 to be close to the frame 1, and then the bearing is clamped by the bearing assembly robot 43 to be installed on the lead screw. The bearing assembly robot 43 includes a cylinder group driven along the width and height directions of the frame 1 and a clamping cylinder arranged on the cylinder group by a motor. After the clamping cylinder clamps the horizontally placed bearing, the bearing is set vertically by a motor drive, and then the bearing sleeve is driven and assembled on the lead screw by the cylinder group driven along the width and height directions of the frame 1.

[0048] Reference Figure 1 and Figure 7 The bevel gear assembly component 5 includes a bevel gear vibrating plate 51, a bevel gear placement platform 52, a bevel gear mounting frame 53 and a bevel gear manipulator 54. The bevel gear vibrating plate 51 is mounted on one side of the frame 1 in the width direction. The bevel gear placement platform 52 is set at the exit of the bevel gear vibrating plate 51. The bevel gear vibrating plate 51 is screened to place the bevel gear horizontally on the bevel gear placement platform 52. The bevel gear placement platform 52 can only place one bevel gear at a time. When the bevel gear on the bevel gear placement platform 52 is taken away, the bevel gear vibrating plate 51 will place another bevel gear. The bevel gear is transported to the bevel gear placement platform 52, the bevel gear mounting frame 53 is installed on the frame 1, and the bevel gear manipulator 54 is installed on the bevel gear mounting frame 53. The bevel gear manipulator 54 includes a cylinder group driven along the width and height directions of the frame 1 and a clamping cylinder arranged on the cylinder group by a motor. After the clamping cylinder clamps the horizontally placed bevel gear, the bevel gear is set vertically by the motor drive, and then the bevel gear sleeve is driven by the cylinder group driven along the width and height directions of the frame 1 to be assembled on the screw.

[0049] Reference Figure 1 and Figure 8The lower shell assembly component 6 includes a lower shell vibration plate 61, a lower shell placement table 62, a lower shell mounting frame 63 and a lower shell manipulator 64. The lower shell vibration plate 61 is mounted on one side of the frame 1 in the width direction. The lower shell placement table 62 is arranged at the outlet of the lower shell vibration plate 61. The lower shell vibration plate 61 is screened to place the lower shell horizontally on the lower shell placement table 62. The lower shell placement table 62 can only place one lower shell at a time. After the lower shell on the lower shell placement table 62 is taken away, the lower shell vibration plate 61 transports another lower shell to the lower shell placement table 62. The lower shell is installed The mounting frame 63 is mounted on the frame 1, and the lower shell manipulator 64 is mounted on the lower shell mounting frame 63. The lower shell manipulator 64 includes a cylinder group driven along the width direction and the height direction of the frame 1 and a clamping cylinder arranged on the cylinder group by a motor. The clamping cylinder is arranged vertically and can be rotated ninety degrees in the horizontal plane by a motor. After the clamping cylinder clamps the lower shell on the lower shell placement table 62, the lower shell is rotated ninety degrees by the motor, and then the lower clamping cylinder is driven by the cylinder group driven along the width direction and the height direction of the frame 1 to place the lower shell in the shell mounting table 13.

[0050] Reference Figure 1 and Fig. 9 The shaft gear assembly component 7 includes a shaft gear unloading platform 71, a shaft gear mounting frame 72 and a shaft gear manipulator 73. The shaft gear unloading platform 71 is installed on one side of the frame 1 in the width direction. The shaft gear unloading platform 71 selects a vibration plate or an assembly device that can install a sleeve on the shaft gear according to the actual assembly requirements. The shaft gear unloading platform 71 directly transports the shaft gear toward the frame 1 or transports the assembled shaft gear to a position close to the frame 1. The shaft gear mounting frame 72 is installed on the frame 1. The shaft gear manipulator 73 is installed on the shaft gear mounting frame 72. The shaft gear manipulator 73 includes a cylinder group transported along the height and width directions of the frame 1 and a clamping cylinder installed on the cylinder group. The clamping cylinder is driven by the cylinder group transported along the height and width directions of the frame 1 to transfer the shaft gear discharged from the shaft gear unloading platform 71 and place it in the lower shell.

[0051] Reference Figure 2 and Fig.10 A transplanting assembly 16 is arranged between the shaft gear assembly assembly 7 and the upper shell assembly assembly 8. The transplanting assembly 16 includes a transplanting frame 161 mounted on the frame 1 and a transplanting robot 162 installed on the transplanting frame 161. The transplanting robot 162 includes a clamping cylinder installed on the cylinder group and a cylinder combination driven along the length direction and the height direction of the frame 1. The transplanting robot 162 transplants the screw from a workstation without a shell mounting platform 13 to a workstation with a shell mounting platform 13 installed.

[0052] Reference Figure 1 , Figure 2 and Figure 3A limit rod 17 is slidably provided on the receiving plate 11, and the limit rod 17 is blocked at the opening of the receiving groove 12 by sliding. The limit rod 17 is an L-shaped rod, and the limit rod 17 is adapted to the lead screw. When the lead screw is placed in the receiving groove 12, the limit rod 17 is slidably abutted against the side of the lead screw away from the receiving groove 12 to limit the movement of the lead screw, thereby reducing the probability of the lead screw being offset during the conveying process and reducing subsequent assembly errors; a driving rod 18 is slidably provided at the bottom of the receiving groove 12, and the driving rod 18 is received in the receiving plate 11 or extends into the receiving groove 12 by sliding. A linkage rod 19 is hinged on the driving rod 18, and the linkage rod 19 is hinged to the driving rod 18. One end of the moving rod 18 is hinged to the limit rod 17. When the driving rod 18 is received in the receiving plate 11, the linkage rod 19 slides and rotates to drive the limit rod 17 to slide, driving the limit rod 17 to slide and block the opening of the receiving groove 12. A return spring 20 is arranged between the limit rod 17 and the receiving plate 11. The elastic force of the return spring 20 drives the limit rod 17 to be received in the receiving plate 11 and makes the driving rod 18 extend out of the receiving plate 11 and extend into the receiving groove 12; the receiving plate 11 includes a fixed plate 111 and a sliding plate 112. The fixed plate 111 is fixed on the tooling plate 10, and the sliding plate 112 is slidably arranged on the fixed plate 111. The sliding plate 112 and the tooling An elastic member 21 is arranged between the plates 10, and the elastic member 21 drives the sliding plate 112 to slide toward the fixed plate 111. In this embodiment, the elastic member 21 is a spring, and the driving rod 18 and the limiting rod 17 are both installed on the sliding plate 112. The sliding plates 112 of the receiving plate 11 of the same station are connected to each other through the connecting plate 26. When the transplanting manipulator 162 clamps the lead screw, it abuts against the connecting plate 26 to drive the sliding plate 112 to slide; when the manipulator clamps the lead screw for placement, the manipulator abuts against the sliding plate 112 to make the sliding plate 112 slide away from the lead screw. After the lead screw is subsequently placed in the receiving groove 12, the sliding plate 112 is reset when the manipulator is away from the lead screw. At this time, the manipulator drives Under the action of the gravity of the screw, the rod 18 drives the limit rod 17 to slide and abut against the side of the screw away from the receiving groove 12; when the manipulator wants to clamp the screw in the receiving plate 11, the manipulator drives the sliding plate 112 to slide, and the sliding plate 112 drives the limit rod 17 and the driving rod 18, so that the driving rod 18 extends out of the sliding plate 112, and the limit rod 17 is received into the sliding plate 112 under the action of the return spring 20 and the receiving groove 12 is opened. At this time, the manipulator takes the screw out of the receiving groove 12 by clamping, and the linkage between the limit rod 17 and the driving rod 18 can reinforce the screw after it is placed, and release the reinforcement of the screw before it is taken out.

[0053] Reference Fig.11 and Fig.12The upper shell assembly component 8 includes an upper shell vibration plate 81, an upper shell placement table 82, an upper shell mounting frame 83 and an upper shell manipulator 84. The upper shell vibration plate 81 is mounted on one side of the frame 1 in the width direction. The upper shell placement table 82 is arranged at the outlet of the upper shell vibration plate 81. The upper shell vibration plate 81 is screened to place the upper shell horizontally on the upper shell placement table 82. The upper shell placement table 82 can only place one upper shell at a time. When the upper shell on the upper shell placement table 82 is taken away, the upper shell vibration plate 81 transports another upper shell to the upper shell placement table 82. The upper shell mounting frame 83 is mounted on the frame The upper shell manipulator 84 is mounted on the upper shell mounting frame 83. The upper shell manipulator 84 includes a cylinder group driven along the width and height directions of the frame 1 and a clamping cylinder arranged on the cylinder group by a motor. The clamping cylinder is arranged vertically and can be rotated ninety degrees in the horizontal plane by a motor. After the clamping cylinder clamps the upper shell on the upper shell placement table 82, the upper shell is rotated ninety degrees by the motor. Then, the cylinder group driven along the width and height directions of the frame 1 drives the lower clamping cylinder to place the upper shell in the shell mounting table 13, and the cover is arranged on the lower shell to complete the assembly of the shell.

[0054] Reference Fig.11 and Fig.14 The discharging assembly 9 includes a discharging rack 91 and a discharging robot 92. The discharging rack 91 is mounted on the frame 1, and the discharging robot 92 is installed on the discharging rack 91. The discharging robot 92 includes a cylinder group driven along the length, width and height directions of the frame 1 and a gripper cylinder installed on the cylinder group. The gripper cylinder cooperates with the cylinder group to take the assembled screw assembly out of the frame 1 and transport it to the storage area.

[0055] Reference Figure 2 , Fig.11 and Fig.13An oiling component 22 is provided between the upper shell assembly component 8 and the discharging component 9. The oiling component 22 includes an oiling rack 221, an oiling drive group 222 and a precision oiling valve 223. The oiling rack 221 is mounted on the frame 1, the oiling drive group 222 is mounted on the oiling rack 221, and the precision oiling valve 223 is mounted on the oiling drive group 222. The oiling drive group 222 drives the precision oiling valve 223 to slide along the height direction and the width direction of the frame 1. The oiling drive group 222 drives the precision oiling valve 223 to the position just above the lead screw and close to the lead screw. The precision oiling valve 223 is connected to the lubricating oil tank, and the lubricating oil is applied to the lead screw by opening and closing. The oiling component 22 applies lubricating oil to the lead screw; tooling plate A support plate 23 is provided on 10, and the support plate 23 is arranged on the side of the tooling plate 10 away from the shell mounting platform 13 in the length direction. A support groove 24 is opened on the support plate 23, and another shell mounting platform 13 is provided at the end of the tooling plate 10 in the length direction where the support plate 23 is not installed. The shell mounting platform 13 is parallel to the shell mounting platform 13 at the center of the tooling plate 10 along the width direction of the tooling plate 10. The shell mounting platform 13 is used to place the assembled shell, and the support plate 23 is used to support the screw to facilitate the oiling of the screw; a transplanting component 16 is also provided between the oiling component 22 and the upper shell assembly component 8, and the transplanting component 16 here transplants the screw from the workpiece to between the support body and the shell mounting platform 13.

[0056] Reference Fig.11 and Fig.13 A travel switch 25 is provided on the frame 1. In this embodiment, the distance between the tooling points of the lead screw feeding component 3, the bearing assembly component 4, the bevel gear assembly component 5, the lower housing assembly component 6, the shaft gear assembly component 7, the transplanting component 16, the upper housing assembly component 8, the oiling component 22 and the discharging component 9 and the adjacent components is the same, and the distance between the adjacent tooling plates 10 is the same. The travel switch 25 can be set to one to avoid errors. The corresponding lead screw feeding component 3, the bearing assembly component 4, the bevel gear assembly component 5, the lower housing assembly component 6, the shaft gear assembly component 7, the transplanting component 16, the upper housing assembly component 8, the oiling component 22 and the discharging component 9 are set to one respectively. After the tooling plate 10 slides and contacts the travel switch 25, the conveying of the conveyor belt 2 is stopped, and the conveyor belt 2 is started again for conveying after the corresponding component is completed.

[0057] The implementation principle of the embodiment of the present application is as follows: the lead screw is clamped and conveyed to a workstation without a housing mounting platform 13 by a lead screw feeding robot 33, the lead screw is positioned by a positioning block 14 and a wedge surface 15 on the positioning block 14 when the lead screw is placed, and then the tooling plate 10 is moved to the bearing assembly component 4 under the conveyance of the conveyor belt 2, and the bearing is clamped and installed on the end of the lead screw away from the positioning block 14 by a bearing assembly robot 43, and then the tooling plate 10 is moved to the bevel gear assembly component 5 under the conveyance of the conveyor belt 2, and the bevel gear is clamped and installed by a bevel gear assembly robot The lead screw moves away from one end of the positioning block 14, and then the tooling plate 10 moves to the lower shell assembly component 6 under the conveyance of the conveyor belt 2, and the lower shell is clamped and placed in the shell installation block with a shell installation block station by the lower shell assembly robot. Then, the tooling plate 10 moves to the shaft gear assembly component 7 under the conveyance of the conveyor belt 2, and the shaft gear is clamped and placed in the lower shell by the shaft gear robot 73. Then, the tooling plate 10 moves to the transfer component 16 under the conveyance of the conveyor belt 2, and the lead screw equipped with bearings and bevel gears is moved from the housing without housing installation by the transfer robot 162 The tooling plate 10 is moved from the station of the platform 13 to the station with the shell installation platform 13, and the bevel gear is placed in the lower shell. The positioning block 14 and the wedge surface 15 on the positioning block 14 position the screw during the transfer; then the tooling plate 10 is moved to the upper shell assembly component 8 under the conveyance of the conveyor belt 2, and the upper shell is clamped and placed in the shell installation block with the shell installation block station by the upper shell assembly manipulator, so that the upper shell and the lower shell are spliced ​​with each other, and the bevel gear and the shaft gear are installed in the shell; then the tooling plate 10 is moved to another station under the conveyance of the conveyor belt 2. At the planting assembly 16, the screw assembly is transferred between the support plate 23 and another shell mounting platform 13 by the transfer robot 162, and is positioned by the shell mounting platform 13 and the shell during transfer; then the tooling plate 10 is moved to the oiling assembly 22 under the conveyance of the conveyor belt 2, and the roller skating oil is applied to the screw through the oiling drive group 222 and the precision oiling valve 223, and then the tooling plate 10 is moved to the discharging assembly 9 under the conveyance of the conveyor belt 2, and the assembled screw assembly is transferred to the storage area by the discharging robot 92 to complete the assembly line assembly of the screw assembly.

[0058] It should be noted that the above embodiments are only used to illustrate the present application and are not intended to limit the technical solutions described in the present application. Although the present application has been described in detail in this specification with reference to the above embodiments, a person of ordinary skill in the art should understand that a person of ordinary skill in the art can still modify or make equivalent substitutions to the present application, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present application should be included in the scope of the claims of the present application.

Claims

1. An automatic assembly line for a lead screw assembly, characterized in that: The invention comprises a frame (1), a conveyor belt (2) is arranged on the frame (1), a screw feeding assembly (3), a bearing assembly assembly (4), a bevel gear assembly assembly (5), a lower housing assembly assembly (6), a shaft gear assembly assembly (7), an upper housing assembly assembly (8) and a discharging assembly (9) are arranged in sequence along the length direction of the frame (1) in the circumferential direction of the frame (1), a plurality of tooling plates (10) are evenly arranged on the conveyor belt (2), and a plurality of receiving plates (11) are arranged on the tooling plates (10). ), a receiving groove (12) is provided on the receiving plate (11), a plurality of receiving plates (11) are arranged in two rows to form two workstations, a shell mounting platform (13) is installed on the tooling plate (10), the shell mounting platform (13) is installed at one end of the length direction of one of the workstations, a positioning block (14) is provided on the side of the workstation away from the shell mounting platform (13), the positioning block (14) is fixed on the tooling plate (10), and a wedge-shaped surface (15) is provided on the end of the positioning block (14) away from the tooling plate (10).

2. The automatic assembly line of a lead screw assembly according to claim 1, characterized in that: A transfer assembly (16) is provided between the shaft gear assembly assembly (7) and the upper housing assembly assembly (8), and the transfer assembly (16) comprises a transfer manipulator (162). The transfer manipulator (162) transfers the lead screw from a workstation without a housing mounting platform (13) to a workstation with a housing mounting platform (13) installed.

3. The automatic assembly line of a lead screw assembly according to claim 2, characterized in that: A limiting rod (17) is slidably provided on the receiving plate (11), and the limiting rod (17) is blocked at the opening of the receiving groove (12) by sliding.

4. The automatic assembly line of a lead screw assembly according to claim 3, characterized in that: A driving rod (18) is slidably provided at the bottom of the receiving groove (12). The driving rod (18) is slidably received in the receiving plate (11) or extends into the receiving groove (12). A linkage rod (19) is hingedly connected to the driving rod (18). The other end of the linkage rod (19) is hingedly connected to a limiting rod (17). When the driving rod (18) is received in the receiving plate (11), the linkage rod (19) drives the limiting rod (17) to slide and block at the opening of the receiving groove (12).

5. The automatic assembly line of a lead screw assembly according to claim 4, characterized in that: The receiving plate (11) comprises a fixed plate (111) and a sliding plate (112); the fixed plate (111) is fixedly mounted on the tooling plate (10); the sliding plate (112) is slidingly mounted on the fixed plate (111); the driving rod (18) and the limiting rod (17) are both mounted on the sliding plate (112); the sliding plates (112) of the receiving plate (11) at the same workstation are connected to each other via a connecting plate (26); when the transplanting manipulator (162) clamps the lead screw, it abuts against the connecting plate (26) to drive the sliding plate (112) to slide.

6. The automatic assembly line of a lead screw assembly according to claim 1, characterized in that: An oiling component (22) is provided between the upper shell assembly component (8) and the discharge component (9), and the oiling component (22) is used to apply lubricating oil to the lead screw.

7. The automatic assembly line of a lead screw assembly according to claim 6, characterized in that: A support plate (23) is arranged on the tooling plate (10), and the support plate (23) is arranged on a side of the tooling plate (10) away from the shell mounting platform (13) in the length direction. A support groove (24) is provided on the support plate (23), and another shell mounting platform (13) is arranged at one end of the tooling plate (10) in the length direction where the support plate (23) is not installed.

8. The automatic assembly line of a lead screw assembly according to claim 1, characterized in that: The frame (1) is provided with a travel switch (25), and the conveying of the conveyor belt (2) is stopped after the tooling plate (10) slides and contacts the travel switch (25).

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