Automated assembly and screw locking apparatus

Abstract

This utility model discloses an automatic assembly and screw-locking device, comprising: a feeding flow line, a discharging flow line, a flipping mechanism, a picking mechanism, a first screw feeder, a second screw feeder, a first screw-locking mechanism, and a second screw-locking mechanism. The feeding and discharging flow lines are spaced apart. The first and second screw feeders are positioned between the feeding and discharging flow lines. The first screw-locking mechanism is adjacent to the feeding flow line, and the second screw-locking mechanism is adjacent to the discharging flow line. The flipping mechanism can drive the phone frame to rotate N degrees. The first screw-locking mechanism can pick up screws from the first screw feeder and fix the workpiece on the phone frame. N is greater than 0 and less than or equal to 90 degrees. This utility model can lock screws onto surfaces fixed at different angles.

Description

Technical Field

[0001] This utility model relates to automated equipment, and more particularly to an automated assembly and screw-tightening device. Background Technology

[0002] With the development of the times, industrial production technology is also developing rapidly, and automated equipment is being used more and more in industrial production. Currently, existing automatic screw fastening machines can usually only fasten screws on the side of the workpiece facing the machine. When encountering a mobile phone frame, due to the small internal space and compact structure of the phone, the space left for screws is limited. When fixing the workpiece (such as the fixing plate of silicon microphone or ribbon cable), due to the limited space, it is usually necessary to use two fixing surfaces that are not on the same plane (such as two mutually perpendicular fixing surfaces) for fixing. In the above situations, traditional automatic screw fastening machines cannot handle the task and can only use manual screw fastening. In the industrial field that emphasizes cost reduction and efficiency improvement, this lacks competitiveness and is not conducive to large-scale promotion and industrialized production. Utility Model Content

[0003] To overcome the above-mentioned defects, this utility model provides an automatic assembly and screw-locking device, which has the advantage of being able to lock screws on fixing surfaces at different angles.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an automatic assembly and screw-locking device, including: a feeding flow line, a discharging flow line, a flipping mechanism, a picking mechanism, a first screw feeder, a second screw feeder, a first screw-locking mechanism, and a second screw-locking mechanism. The feeding flow line and the discharging flow line are arranged alternately. The first screw feeder and the second screw feeder are arranged between the feeding flow line and the discharging flow line. The first screw-locking mechanism is arranged adjacent to the feeding flow line, and the second screw-locking mechanism is arranged adjacent to the discharging flow line. The mobile phone frame can be moved to a position close to the first screw-locking mechanism under the drive of the feeding flow line. The first screw-locking mechanism can move the mobile phone frame at the feeding flow line to the flipping mechanism and... The phone frame is placed flat on the flipping mechanism, which can attract or release the phone frame. The flipping mechanism can drive the phone frame to flip N degrees. The material picking mechanism can clamp the workpiece from the material tray and place the workpiece in the assembly area of ​​the phone frame. The first screw-locking mechanism can pick up screws from the first screw feeder and fix the workpiece on the phone frame. The second screw-locking mechanism can pick up screws from the second screw feeder and fix the workpiece on the phone frame. The assembled phone frame can be moved from the flipping mechanism to the unloading flow line under the drive of the second screw-locking mechanism. The unloading flow line can drive the assembled phone frame to move out of the automatic assembly and screw-locking equipment. N is greater than 0 and less than or equal to 90.

[0005] Optionally, the mobile phone frame can be fixed on the carrier. The loading flow line includes a frame, two drive shafts, two drive belts and a drive motor. The drive shafts are rotatably connected to both ends of the frame. The two drive belts are spaced apart and are driven by the two drive shafts. The rotating shaft of the drive motor is driven by either drive shaft. The bottom surface of the carrier can be placed on the two drive belts. The unloading flow line has the same structure as the loading flow line.

[0006] Optionally, the material handling mechanism includes a first base, a multi-axis robotic arm, a cylinder gripper, and a first navigation camera. The first base spans the material tray, the multi-axis robotic arm is fixed to the top of the first base, and the cylinder gripper and the first navigation camera are fixed to the end of the multi-axis robotic arm. The multi-axis robotic arm can drive the cylinder gripper and the first navigation camera to move back and forth between the material tray and the flipping mechanism. The cylinder gripper can clamp or release the workpiece, and the first navigation camera can provide visual navigation for the material handling mechanism.

[0007] Alternatively, the multi-axis robotic arm may be a six-axis robotic arm.

[0008] Optionally, a workpiece inspection mechanism is also included. The workpiece inspection mechanism and the flipping mechanism are arranged adjacent to each other. The workpiece inspection mechanism includes a second base, a first inspection camera and a second inspection camera. The first inspection camera and the second inspection camera are fixed to the second base. The lens of the first inspection camera faces upward, and the lens of the second inspection camera is parallel to the ground. The workpiece can be moved to the top of the workpiece inspection mechanism under the drive of the multi-axis robotic arm. The first inspection camera can photograph the workpiece from bottom to top, and the second inspection camera can photograph the side of the workpiece.

[0009] Optionally, the flipping mechanism includes a first electric lead screw, a flipping motor, a platform, a first cylinder, a second cylinder, and a pressure block. A first screw-locking mechanism and a second screw-locking mechanism are respectively located at both ends of the first electric lead screw. The flipping motor is fixed to the moving end of the first electric lead screw. The rotating shaft of the flipping motor is connected to a right-angle reducer. The edge of the platform is fixed to the output shaft of the right-angle reducer. A suction hole is provided on the top surface of the platform, and the suction hole is connected to a vacuum generator. The first cylinder is fixed to the platform, the second cylinder is fixed to the moving end of the first cylinder, and the pressure block is L-shaped and fixed to the moving end of the second cylinder. The top surface of the platform is flat. It can be placed on the platform and adsorbed by the suction hole. The second cylinder and the pressure block can move closer to or away from the platform under the drive of the first cylinder. The pressure block can move closer to or away from the assembly area of ​​the mobile phone frame under the drive of the second cylinder. The end of the pressure block can squeeze the workpiece and make the workpiece fit tightly against the mobile phone frame. The flip motor, platform, first cylinder, second cylinder, pressure block, mobile phone frame, carrier and workpiece can move back and forth between the first screw locking mechanism and the second screw locking mechanism under the drive of the first electric screw. The platform, first cylinder, second cylinder, pressure block, mobile phone frame, carrier and workpiece can be flipped under the drive of the flip motor.

[0010] Optionally, the first screw-locking mechanism includes a third base, a second electric lead screw, a third electric lead screw, a fourth electric lead screw, a fifth electric lead screw, a sixth electric lead screw, an electric screwdriver, and a second navigation camera. The second and fifth electric lead screws are fixed to the third base. The third electric lead screw is fixed to its moving end, the fourth electric lead screw is fixed to its moving end, the electric screwdriver and the second navigation camera are fixed to the moving end of the fourth electric lead screw, and the sixth electric lead screw is fixed to the moving end of the fifth electric lead screw. A clamping seat is fixed to the moving end of the sixth electric lead screw. Two third cylinders are fixed opposite each other on the top of the clamping seat. A clamping block is fixed to the moving end of each third cylinder. The third electric lead screw, the fourth electric lead screw, the electric screwdriver, and the second navigation camera can move back and forth along the Y-axis under the drive of the second electric lead screw, and the fourth electric lead screw, the electric screwdriver, and the second navigation camera can move back and forth along the X-axis under the drive of the third electric lead screw. The first and second navigation cameras can move back and forth along the Z-axis under the drive of the fourth electric screw. The first and second screw feeders can arrange the internally stored disordered screws with the screw heads facing upwards and move them to the discharge port in an orderly manner. The screws are made of iron. The screwdriver head of the electric screwdriver is magnetic and can attract the screws located at the discharge port. The electric screwdriver can drive the screws to rotate. The second navigation camera can provide visual navigation for the first screw-locking mechanism. The two clamping blocks can move closer or further apart under the drive of the third cylinder. The clamping blocks can clamp or release the carrier and the mobile phone frame. The fifth electric screw can drive the sixth electric screw, clamping seat, third cylinder, clamping block, mobile phone frame and carrier to move back and forth along the Y-axis. The sixth electric screw can drive the clamping seat, third cylinder, clamping block, mobile phone frame and carrier to move back and forth along the Z-axis. The structure of the second screw-locking mechanism is the same as that of the first screw-locking mechanism. The structure of the second screw feeder is the same as that of the first screw feeder.

[0011] Optionally, a downward-viewing detection mechanism and a screw detection mechanism are also included. The downward-viewing detection mechanism includes a fourth base, a third detection camera, and a fourth detection camera. The third and fourth detection cameras are fixed to the top of the fourth base and are located above the flipping mechanism. The third detection camera can detect the position of the phone frame, and the fourth detection camera can detect whether the screws on the phone frame are qualified. The screw detection mechanism is set next to the first screw feeder and the second screw feeder. The screw detection mechanism includes a fifth base, a sixth base, a fifth detection camera, and a sixth detection camera. The fifth detection camera is fixed to the fifth base with its lens facing upwards. The sixth detection camera is fixed to the sixth base with its lens parallel to the ground. The fifth detection camera can photograph the screw from bottom to top, and the sixth detection camera can photograph the side of the screw.

[0012] Optionally, a return line is also included, which is disposed next to the loading and unloading flow lines, and the length of the return line is greater than that of the loading and unloading flow lines.

[0013] Alternatively, N can be 90.

[0014] The beneficial technical effects of this utility model are as follows: The automatic assembly and screw-locking equipment includes: a feeding line, a discharging line, a flipping mechanism, a picking mechanism, a first screw feeder, a second screw feeder, a first screw-locking mechanism, and a second screw-locking mechanism. During use, when screws need to be locked onto a fixed surface inclined to the first or second screw-locking mechanism, the flipping mechanism flips the phone frame, so that the fixed surface on the phone frame that was originally inclined to the first or second screw-locking mechanism is now directly facing the first or second screw-locking mechanism. This allows the first or second screw-locking mechanism to lock screws onto that fixed surface. Compared to existing technologies, this allows for screw-locking onto fixed surfaces at different angles on the phone frame. It has the advantage of being able to lock screws onto fixed surfaces at different angles. Attached Figure Description

[0015] Figure 1 This is a first-person perspective stereoscopic view of the entire machine of this utility model;

[0016] Figure 2 This is a second-view perspective stereoscopic view of the entire machine of this utility model;

[0017] Figure 3 This is a three-dimensional view of the feeding flow line, unloading flow line and return flow line of this utility model;

[0018] Figure 4 This is a perspective view of the flipping mechanism of this utility model;

[0019] Figure 5 This is a perspective view of the material handling mechanism of this utility model;

[0020] Figure 6 This is a perspective view of the first screw-locking mechanism of this utility model;

[0021] Figure 7 This is a three-dimensional view of the downward-viewing detection mechanism of this utility model;

[0022] Figure 8 This is a perspective view of the first screw feeder, the second screw feeder, the workpiece inspection mechanism, and the screw inspection mechanism of this utility model;

[0023] Figure 9 This is an assembly diagram of the mobile phone frame and the workpiece of this utility model;

[0024] in:

[0025] 1. Feeding assembly line; 11. Frame; 12. Drive shaft; 13. Drive belt; 14. Drive motor;

[0026] 2. Material feeding line; 3. Tilting mechanism; 31. First electric lead screw; 32. Tilting motor;

[0027] 33. Platform; 34. First cylinder; 35. Second cylinder; 36. Press block; 4. Material handling mechanism;

[0028] 41. First base; 42. Multi-axis robotic arm; 43. Cylinder gripper; 44. First navigation camera; 5. First screw feeder; 6. Second screw feeder; 7. First screw locking mechanism;

[0029] 71. Third base; 72. Second electric lead screw; 73. Third electric lead screw; 74. Fourth electric lead screw; 75. Fifth electric lead screw; 76. Sixth electric lead screw; 77. Electric screwdriver; 78. Second navigation camera; 79. Clamping seat; 710. Third cylinder; 711. Clamping block; 8. Second screw-locking mechanism; 9. Material tray; 10. Workpiece inspection mechanism; 101. Second base; 102. First inspection camera; 103. Second inspection camera; 20. Downward inspection mechanism; 201. Fourth base; 202. Third inspection camera; 203. Fourth inspection camera; 301. Fifth base; 302. Sixth base; 303. Fifth inspection camera; 304. Sixth inspection camera; 40. Return line; 50. Mobile phone frame; 60. Carrier; 70. Workpiece. Detailed Implementation

[0030] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0031] This specific embodiment describes in detail the automatic assembly and screw-tightening equipment described in this application, such as... Figures 1-9As shown, the automatic assembly and screw-locking equipment includes: a feeding conveyor 1, a discharging conveyor 2, a flipping mechanism 3, a material handling mechanism 4, a first screw feeder 5, a second screw feeder 6, a first screw-locking mechanism 7, and a second screw-locking mechanism 8. The feeding conveyor 1 and the discharging conveyor 2 are spaced apart. The first screw feeder 5 and the second screw feeder 6 are located between the feeding conveyor 1 and the discharging conveyor 2. The first screw-locking mechanism 7 is adjacent to the feeding conveyor 1, and the second screw-locking mechanism 8 is adjacent to the discharging conveyor 2. The mobile phone frame 50 can be moved to a position close to the first screw-locking mechanism 7 under the drive of the feeding conveyor 1. The first screw-locking mechanism 7 can move the mobile phone frame 50 from the feeding conveyor 1 to the flipping mechanism 3 and place it flat on the flipping mechanism 3. The flipping mechanism 3 can... The device can adsorb or release the phone frame 50. The flipping mechanism 3 can drive the phone frame 50 to flip N degrees. The picking mechanism 4 can clamp the workpiece 70 from the material tray 9 and place the workpiece 70 in the assembly area of ​​the phone frame 50. The first screw-locking mechanism 7 can pick up the screw from the first screw feeder 5 and fix the workpiece 70 on the phone frame 50. The second screw-locking mechanism 8 can pick up the screw from the second screw feeder 6 and fix the workpiece 70 on the phone frame 50. The assembled phone frame 50 can be moved from the flipping mechanism 3 to the unloading flow line 2 under the drive of the second screw-locking mechanism 8. The unloading flow line 2 can drive the assembled phone frame 50 to move out of the automatic assembly and screw-locking equipment. N is greater than 0 and less than or equal to 90. During use, when screws need to be tightened on the fixing surface that is tilted towards the first screw-locking mechanism 5 or the second screw-locking mechanism 6, the flipping mechanism 3 flips the phone frame 50 so that the fixing surface on the phone frame 50 that was originally tilted towards the first screw-locking mechanism 5 or the second screw-locking mechanism 6 is now facing the first screw-locking mechanism 5 or the second screw-locking mechanism 6. This allows the first screw-locking mechanism 5 or the second screw-locking mechanism 6 to tighten screws on that fixing surface. Compared to existing technologies, this allows screws to be tightened on fixing surfaces at different angles on the phone frame. It has the advantage of being able to tighten screws on fixing surfaces at different angles.

[0032] Optionally in this embodiment, the mobile phone frame 50 can be fixed on the carrier 60. The loading flow line 1 includes a frame 11, two drive shafts 12, two drive belts 13 and a drive motor 14. The drive shafts 12 are rotatably connected to both ends of the frame 11. The two drive belts 13 are spaced apart and are connected to the two drive shafts 12. The rotating shaft of the drive motor 14 is connected to any one of the drive shafts 12. The bottom surface of the carrier 60 can be placed on the two drive belts 13. The unloading flow line 2 has the same structure as the loading flow line 1.

[0033] Optionally in this embodiment, the material handling mechanism 4 includes a first base 41, a multi-axis robotic arm 42, a cylinder gripper 43, and a first navigation camera 44. The first base 41 spans the material tray 9. The multi-axis robotic arm 42 is fixed to the top of the first base 41. The cylinder gripper 43 and the first navigation camera 44 are fixed to the ends of the multi-axis robotic arm 42. The multi-axis robotic arm 42 can drive the cylinder gripper 43 and the first navigation camera 44 to move back and forth between the material tray 9 and the flipping mechanism 3. The cylinder gripper 43 can grip or release the workpiece 70, and the first navigation camera 44 can provide visual navigation for the material handling mechanism 4. In this embodiment, the cylinder gripper 43 can be a commercially available product.

[0034] Optionally, in this embodiment, the multi-axis robotic arm 42 is a six-axis robotic arm.

[0035] Optionally, this embodiment also includes a workpiece inspection mechanism 10, which is arranged adjacent to the flipping mechanism 3. The workpiece inspection mechanism 10 includes a second base 101, a first inspection camera 102, and a second inspection camera 103. The first and second inspection cameras 102 and 103 are fixed to the second base 101. The lens of the first inspection camera 102 faces upward, and the lens of the second inspection camera 103 is parallel to the ground. The workpiece 70 can be moved above the workpiece inspection mechanism 10 under the drive of the multi-axis robotic arm 42. The first inspection camera 102 can photograph the workpiece 70 from bottom to top, and the second inspection camera 103 can photograph the side of the workpiece 70. In some optional embodiments, the multi-axis robotic arm 42 can drive the workpiece 70 to rotate, so that the workpiece inspection mechanism 10 can detect different angles of the workpiece 70, thereby improving the inspection range.

[0036] Optionally in this embodiment, the flipping mechanism 3 includes a first electric lead screw 31, a flipping motor 32, a platform 33, a first cylinder 34, a second cylinder 35, and a pressure block 36. A first screw-locking mechanism 7 and a second screw-locking mechanism 8 are respectively disposed at both ends of the first electric lead screw 31. The flipping motor 32 is fixed to the moving end of the first electric lead screw 31. The rotating shaft of the flipping motor 32 is connected to a right-angle reducer. The edge of the platform 33 is fixed to the output shaft of the right-angle reducer. A suction hole is provided on the top surface of the platform 33, and the suction hole is connected to a vacuum generator. The first cylinder 34 is fixed to the platform 33, the second cylinder 35 is fixed to the moving end of the first cylinder 34, and the pressure block 36 is L-shaped and fixed to the moving end of the second cylinder 35. The top surface of the platform 33 is flat, and the carrier 60 can be placed on the platform 33. The first cylinder 34 drives the second cylinder 35 and the pressure block 36 to move closer to or further away from the platform 33. The pressure block 36 drives the second cylinder 35 to move closer to or further away from the assembly area of ​​the mobile phone frame 50. The end of the pressure block 36 can squeeze the workpiece 70 and make the workpiece 70 stick tightly to the mobile phone frame 50. The flip motor 32, platform 33, first cylinder 34, second cylinder 35, pressure block 36, mobile phone frame 50, carrier 60 and workpiece 70 can move back and forth between the first screw locking mechanism 7 and the second screw locking mechanism 8 under the drive of the first electric lead screw 31. The platform 33, first cylinder 34, second cylinder 35, pressure block 36, mobile phone frame 50, carrier 60 and workpiece 70 can be flipped under the drive of the flip motor 32. When the carrier 60 with the fixed mobile phone frame 50 is placed on the platform 33, the suction hole will attract the carrier 60. Then, the workpiece 70 will move to the assembly area of ​​the mobile phone frame 50 under the drive of the material handling mechanism 4. Then, the second cylinder 35 and the pressure block 36 will approach the platform 33 under the drive of the first cylinder 34. At the same time, the pressure block 36 will approach the assembly area of ​​the mobile phone frame 50 under the drive of the second cylinder 35 and squeeze the workpiece 70 to make the workpiece 70 stick tightly to the mobile phone frame 50. In this way, the workpiece 70 will not fall off when flipping. Then, the flipping motor 32 will drive the mobile phone frame 50, the carrier 60 and the workpiece 70 to flip at a set angle so that the fixed surface is facing the first screw-locking mechanism 5 or the second screw-locking mechanism 6.

[0037] Optionally in this embodiment, the first screw-locking mechanism 7 includes a third base 71, a second electric lead screw 72, a third electric lead screw 73, a fourth electric lead screw 74, a fifth electric lead screw 75, a sixth electric lead screw 76, an electric screwdriver 77, and a second navigation camera 78. The second electric lead screw 72 and the fifth electric lead screw 75 are fixed to the third base 71. The third electric lead screw 73 is fixed to the moving end of the second electric lead screw 72. The fourth electric lead screw 74 is fixed to the moving end of the third electric lead screw 73. The electric screwdriver 77 and the second navigation camera 78 are fixed to the moving end of the fourth electric lead screw 74. The sixth electric lead screw 76... The electric lead screw 76 is fixed to the moving end of the fifth electric lead screw 75. A clamping seat 79 is fixed to the moving end of the sixth electric lead screw 76. Two third cylinders 710 are fixed opposite each other on the top of the clamping seat 79. A clamping block 711 is fixed to the moving end of each third cylinder 710. The third electric lead screw 73, the fourth electric lead screw 74, the electric screwdriver 77, and the second navigation camera 78 can move back and forth along the Y-axis under the drive of the second electric lead screw 72. The fourth electric lead screw 74, the electric screwdriver 77, and the second navigation camera 78 can move back and forth along the X-axis under the drive of the third electric lead screw 73. The electric screwdriver 77 and the second navigation camera 78 can move back and forth along the Z-axis under the drive of the fourth electric lead screw 74. The first screw feeder 5 and the second screw feeder 6 can arrange the internally stored disordered screws so that the screw heads face upwards and move them orderly to the discharge port. The screws are made of iron. The screwdriver head of the electric screwdriver 77 is magnetic and can attract the screws located at the discharge port. The electric screwdriver 77 can drive the screws to rotate. The second navigation camera 78 can provide visual navigation for the first screw-locking mechanism 7. The two clamping blocks 711 can move back and forth under the drive of the third cylinder 710. By moving closer to or further away from each other, the clamping block 711 can clamp or release the carrier 60 and the mobile phone frame 50. The fifth electric lead screw 75 can drive the sixth electric lead screw 76, the clamping seat 79, the third cylinder 710, the clamping block 711, the mobile phone frame 50, and the carrier 60 to move back and forth along the Y-axis. The sixth electric lead screw 76 can drive the clamping seat 79, the third cylinder 710, the clamping block 711, the mobile phone frame 50, and the carrier 60 to move back and forth along the Z-axis. The structure of the second screw-locking mechanism 8 is the same as that of the first screw-locking mechanism 7, and the structure of the second screw feeder 6 is the same as that of the first screw feeder 5. The clamping blocks 711 are driven closer to or further away from each other by the third cylinder 710 to clamp or release the carrier 60. In this embodiment, the first screw feeder 5 and the second screw feeder 6 can be commercially available products. In this embodiment, the X-axis and Y-axis are perpendicular to each other but parallel to the ground, and the Z-axis is perpendicular to the ground.

[0038] Optionally, this embodiment also includes a downward-looking detection mechanism 20 and a screw detection mechanism. The downward-looking detection mechanism 20 includes a fourth base 201, a third detection camera 202, and a fourth detection camera 203. The third detection camera 202 and the fourth detection camera 203 are fixed to the top of the fourth base 201 and are located above the flipping mechanism 3. The third detection camera 202 can detect the position of the mobile phone frame 50, and the fourth detection camera 203 can detect whether the screws on the mobile phone frame 50 are qualified. The screw detection mechanism is set next to the first screw feeder 5 and the second screw feeder 6. The screw detection mechanism includes a fifth base 301, a sixth base 302, a fifth detection camera 303, and a sixth detection camera 304. The fifth detection camera 303 is fixed to the fifth base 301 with its lens facing upwards. The sixth detection camera 304 is fixed to the sixth base 302 with its lens parallel to the ground. The fifth detection camera 303 can photograph the screw from bottom to top, and the sixth detection camera 304 can photograph the side of the screw. In this embodiment, when the screw detection mechanism detects the screw, the first screw-locking mechanism 5 or the second screw-locking mechanism 6 can drive the screw to rotate, so that the screw detection mechanism can detect different angles of the screw and improve the detection range.

[0039] Optionally, this embodiment also includes a return line 40, which is disposed next to the loading flow line 1 and the unloading flow line 2, and the length of the return line 40 is greater than that of the loading flow line 1 and the unloading flow line 2. In this embodiment, the loading flow line 1, the unloading flow line 2, and the return line 40 are parallel to each other.

[0040] Optionally, in this embodiment, N is 90. That is, the flipping mechanism 3 can drive the mobile phone frame 50, the carrier 60, and the workpiece 70 to flip 90 degrees.

[0041] Movement Process: The assembly area of ​​the phone frame 50 has two mutually perpendicular fixing surfaces, each with a screw hole. The workpiece 70 has two fixing holes corresponding to the screw holes. The carrier 60, which holds the phone frame 50, moves under the drive of the loading flow line 1 to a position close to the first screw-locking mechanism 7. The fifth electric lead screw 75 and the sixth electric lead screw 76 work together to drive the clamping seat 79 to approach the carrier 60 located on the loading flow line 1. The third cylinder 710 drives the clamping block 711 to clamp the carrier 60, moving the carrier 60 and the phone frame 50 onto the platform 33. After the suction hole attracts the carrier 60, the third detection camera 202 photographs the phone frame 50 to confirm its position. The multi-axis robotic arm 42 drives the cylinder gripper 43 to move to the material tray 9. After the cylinder gripper 43 clamps the workpiece 70, it moves the workpiece 70 to the workpiece inspection mechanism 10. The workpiece inspection mechanism 10 inspects the appearance of the workpiece 70. If the workpiece 70 is qualified, the multi-axis robotic arm 42 moves the workpiece 70 to the assembly area of ​​the mobile phone frame 50. Then, the workpiece 70 is fixed by the pressure block 36. Then, the flip motor 32 drives the mobile phone frame 50, the carrier 60 and the workpiece 70 to flip 90 degrees, so that one of the fixed surfaces faces the first screw-locking mechanism 7. The electric screwdriver 77 is moved to the first screw feeder 5 by the coordinated drive of the second electric screw 72, the third electric screw 73 and the fourth electric screw 74. The screwdriver 77 uses magnetic force to attract screws from the outlet of the first screw feeder 5, moving the screws to the screw detection mechanism. The screw detection mechanism inspects the appearance of the screws; if the screws are qualified, it moves them to the fixed surface facing the first screw-locking mechanism 7. After the screw passes through the fixing hole on the workpiece 70, the electric screwdriver 77 fixes the screw in the corresponding screw hole. Then, the flip motor 32 drives the phone frame 50, carrier 60, and workpiece 70 to reset. Then, the first electric lead screw 31 drives the phone frame 50, carrier 60, and workpiece 70 to move closer to the second screw-locking mechanism 8. The second screw-locking mechanism 8 picks up the screws from the second screw feeder 6 and moves them to the screw-locking mechanism 70. At the screw inspection mechanism, the screw inspection mechanism inspects the appearance of the screw. If the screw is qualified, it is fixed to another screw hole to fix the workpiece 70 and the mobile phone frame 50. Then, the fourth inspection camera 203 checks whether the screw fixing position on the mobile phone frame 50 is qualified. If it is qualified, the suction hole releases the carrier 60 and the pressure block 36 releases the workpiece 70. After the second screw locking mechanism 8 clamps the carrier 60, it moves the mobile phone frame 50, the carrier 60 and the workpiece 70 onto the unloading flow line 2. Then, the mobile phone frame 50, the carrier 60 and the workpiece 70 are moved out of the automatic assembly and screw locking equipment under the drive of the unloading flow line 2. This process is repeated to realize the automatic assembly of the workpiece 70 and the screw locking of the fixing surface at different angles.

[0042] Using the automatic assembly and screw-locking device in this embodiment has the advantage of being able to lock screws onto surfaces with different angles.

Claims

1. An automatic assembly and locking screw device characterized by, include: The assembly includes a loading flow line (1), a unloading flow line (2), a flipping mechanism (3), a picking mechanism (4), a first screw feeder (5), a second screw feeder (6), a first screw-locking mechanism (7), and a second screw-locking mechanism (8). The loading flow line (1) and the unloading flow line (2) are spaced apart. The first screw feeder (5) and the second screw feeder (6) are located between the loading flow line (1) and the unloading flow line (2). The first screw-locking mechanism (7) is adjacent to the loading flow line (1), and the second screw-locking mechanism (8) is adjacent to the unloading flow line (2). The mobile phone frame (50) can be moved to a position close to the first screw-locking mechanism (7) under the drive of the loading flow line (1). The first screw-locking mechanism (7) can move the mobile phone frame (50) at the loading flow line (1) to the flipping mechanism (3) and place it flat on the flipping mechanism (3). The flipping mechanism (3) can adsorb or When the user releases the phone frame (50), the flipping mechanism (3) can drive the phone frame (50) to flip N degrees. The picking mechanism (4) can clamp the workpiece (70) from the material tray (9) and place the workpiece (70) in the assembly area of ​​the phone frame (50). The first screw-locking mechanism (7) can pick up the screw from the first screw feeder (5) and fix the workpiece (70) on the phone frame (50). The second screw-locking mechanism (8) can pick up the screw from the second screw feeder (6) and fix the workpiece (70) on the phone frame (50). The assembled phone frame (50) can be moved from the flipping mechanism (3) to the unloading flow line (2) under the drive of the second screw-locking mechanism (8). The unloading flow line (2) can drive the assembled phone frame (50) to move out of the automatic assembly and screw-locking equipment. N is greater than 0 and less than or equal to 90.

2. The automatic assembly and screw-tightening device according to claim 1, characterized in that: The mobile phone frame (50) can be fixed on the carrier (60). The loading flow line (1) includes a frame (11), two drive shafts (12), two drive belts (13) and a drive motor (14). The drive shafts (12) are rotatably connected to both ends of the frame (11). The two drive belts (13) are spaced apart and are connected to the two drive shafts (12). The rotating shaft of the drive motor (14) is connected to any one of the drive shafts (12). The bottom surface of the carrier (60) can be placed on the two drive belts (13). The unloading flow line (2) has the same structure as the loading flow line (1).

3. The automatic assembly and screw-tightening device according to claim 1, characterized in that: The material handling mechanism (4) includes a first base (41), a multi-axis robotic arm (42), a cylinder gripper (43), and a first navigation camera (44). The first base (41) spans the material tray (9). The multi-axis robotic arm (42) is fixed to the top of the first base (41). The cylinder gripper (43) and the first navigation camera (44) are fixed to the end of the multi-axis robotic arm (42). The multi-axis robotic arm (42) can drive the cylinder gripper (43) and the first navigation camera (44) to move back and forth between the material tray (9) and the flipping mechanism (3). The cylinder gripper (43) can clamp or release the workpiece (70). The first navigation camera (44) can provide visual navigation for the material handling mechanism (4).

4. The automatic assembly and screw-tightening equipment according to claim 3, characterized in that: The multi-axis robotic arm (42) is a six-axis robotic arm.

5. The automatic assembly and screw-tightening device according to claim 3, characterized in that: It also includes a workpiece inspection mechanism (10), which is arranged adjacent to the flipping mechanism (3). The workpiece inspection mechanism (10) includes a second base (101), a first inspection camera (102) and a second inspection camera (103). The first inspection camera (102) and the second inspection camera (103) are fixed to the second base (101). The lens of the first inspection camera (102) faces upward, and the lens of the second inspection camera (103) is parallel to the ground. The workpiece (70) can move to the top of the workpiece inspection mechanism (10) under the drive of the multi-axis robotic arm (42). The first inspection camera (102) can photograph the workpiece (70) from bottom to top, and the second inspection camera (103) can photograph the side of the workpiece (70).

6. The automatic assembly and screw-tightening device according to claim 2, characterized in that: The flipping mechanism (3) includes a first electric lead screw (31), a flipping motor (32), a platform (33), a first cylinder (34), a second cylinder (35), and a pressure block (36). A first screw-locking mechanism (7) and a second screw-locking mechanism (8) are respectively located at both ends of the first electric lead screw (31). The flipping motor (32) is fixed to the moving end of the first electric lead screw (31). The rotating shaft of the flipping motor (32) is connected to a right-angle reducer. The edge of the platform (33) is fixed to the output shaft of the right-angle reducer. A suction hole is provided on the top surface of the platform (33). The suction hole is connected to a vacuum generator. The first cylinder (34) is fixed to the platform (33). The second cylinder (35) is fixed to the moving end of the first cylinder (34). The pressure block (36) is L-shaped and fixed to the moving end of the second cylinder (35). The top surface of the platform (33) is flat. The carrier (60) can be placed on the platform (33) and adsorbed by the suction hole. The second cylinder (35) and the pressure block (36) can move closer to or further away from the platform (33) under the drive of the first cylinder (34). The pressure block (36) can move closer to or further away from the assembly area of ​​the mobile phone frame (50) under the drive of the second cylinder (35). The end of the pressure block (36) can squeeze the workpiece (70) and make the workpiece (70) stick tightly to the mobile phone frame (50). The flip motor (32), platform (33), first cylinder (34), second cylinder (35), pressure block (36), mobile phone frame (50), carrier (60) and workpiece (70) can move back and forth between the first screw locking mechanism (7) and the second screw locking mechanism (8) under the drive of the first electric screw (31). The platform (33), first cylinder (34), second cylinder (35), pressure block (36), mobile phone frame (50), carrier (60) and workpiece (70) can be flipped under the drive of the flip motor (32).

7. The automatic assembly and screw-locking equipment according to claim 6, characterized in that: The first screw-locking mechanism (7) includes a third base (71), a second electric lead screw (72), a third electric lead screw (73), a fourth electric lead screw (74), a fifth electric lead screw (75), a sixth electric lead screw (76), an electric screwdriver (77), and a second navigation camera (78). The second electric lead screw (72) and the fifth electric lead screw (75) are fixed to the third base (71). The third electric lead screw (73) is fixed to the moving end of the second electric lead screw (72). The fourth electric lead screw (74) is fixed to the moving end of the third electric lead screw (73). The electric screwdriver (77) and the second navigation camera (78) are fixed to the moving end of the fourth electric lead screw (74). The sixth electric lead screw (76) is fixed to the moving end of the fourth electric lead screw (74). The moving lead screw (76) is fixed to the moving end of the fifth electric lead screw (75). The moving end of the sixth electric lead screw (76) is fixed with a clamping seat (79). Two third cylinders (710) are fixed opposite to each other on the top of the clamping seat (79). A clamping block (711) is fixed on the moving end of each third cylinder (710). The third electric lead screw (73), the fourth electric lead screw (74), the electric screwdriver (77), and the second navigation camera (78) can move back and forth along the Y-axis under the drive of the second electric lead screw (72). The fourth electric lead screw (74), the electric screwdriver (77), and the second navigation camera (78) can move back and forth along the X-axis under the drive of the third electric lead screw (73). The electric screwdriver (77) and the second navigation camera (78) can move back and forth along the Z-axis under the drive of the fourth electric lead screw (74). The first screw feeder (5) and the second screw feeder (6) can arrange the internally stored disordered screws with the screw heads facing upwards and move them to the discharge port in an orderly manner. The screws are made of iron. The screwdriver head of the electric screwdriver (77) is magnetic and can attract the screws located at the discharge port. The electric screwdriver (77) can drive the screws to rotate. The second navigation camera (78) can provide visual navigation for the first screw-locking mechanism (7). The two clamping blocks (711) can move closer or further apart under the drive of the third cylinder (710). The block (711) can clamp or release the carrier (60) and the mobile phone frame (50). The fifth electric screw (75) can drive the sixth electric screw (76), the clamping seat (79), the third cylinder (710), the clamping block (711), the mobile phone frame (50) and the carrier (60) to move back and forth along the Y-axis. The sixth electric screw (76) can drive the clamping seat (79), the third cylinder (710), the clamping block (711), the mobile phone frame (50) and the carrier (60) to move back and forth along the Z-axis. The structure of the second screw-locking mechanism (8) is the same as that of the first screw-locking mechanism (7). The structure of the second screw feeder (6) is the same as that of the first screw feeder (5).

8. The automatic assembly and screw-tightening device according to claim 7, characterized in that: It also includes a downward-facing detection mechanism (20) and a screw detection mechanism. The downward-facing detection mechanism (20) includes a fourth base (201), a third detection camera (202), and a fourth detection camera (203). The third detection camera (202) and the fourth detection camera (203) are fixed to the top of the fourth base (201) and are located above the flipping mechanism (3). The third detection camera (202) can detect the position of the mobile phone frame (50), and the fourth detection camera (203) can detect whether the screws on the mobile phone frame (50) are qualified. Located next to the first screw feeder (5) and the second screw feeder (6), the screw detection mechanism includes a fifth base (301), a sixth base (302), a fifth detection camera (303), and a sixth detection camera (304). The fifth detection camera (303) is fixed to the fifth base (301) with its lens facing upwards. The sixth detection camera (304) is fixed to the sixth base (302) with its lens parallel to the ground. The fifth detection camera (303) can photograph the screw from bottom to top, and the sixth detection camera (304) can photograph the side of the screw.

9. The automatic assembly and screw-tightening device according to claim 2, characterized in that: It also includes a return line (40), which is located next to the loading flow line (1) and the unloading flow line (2), and the length of the return line (40) is greater than that of the loading flow line (1) and the unloading flow line (2).

10. The automatic assembly and screw-locking device according to claim 1, characterized in that: The value of N is 90.

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