Novel automatic screw tightening machine

Abstract

The utility model relates to the field of screw tightening machines, and discloses a novel automatic screw tightening machine which comprises a base, a mounting frame is fixedly connected to the middle, close to the center, of the other side of the upper surface of the base, and a screw hopper is fixedly connected to the middle of the upper surface of the mounting frame. Mounting grooves are formed in the front end and the rear end of the center of the upper surface of the mounting frame and the front end and the rear end of the inner bottom face of the screw hopper correspondingly, an air cylinder is fixedly connected to the middle of the inner bottom face of the mounting frame, and a mounting block is fixedly connected to the output end of the air cylinder. The front end and the rear end, close to the center, of the inner bottom face of the screw hopper are fixedly connected with fixing blocks. According to the novel automatic screw tightening machine, the screw hopper is arranged, the inner wall of the screw hopper, the installation block matched with the screw hopper and the fixing block matched with the screw hopper are all designed to be inclined faces with certain gradient, and when the air cylinder drives the installation block to move downwards, screws in the screw hopper can slide down to the installation block.

Description

Technical Field

[0001] This utility model relates to the field of screw tightening machines, and in particular to a novel automatic screw tightening machine. Background Technology

[0002] The new automatic screw tightening machine is an automated device used to automatically complete the tasks of screw feeding, tightening, and inspection. It uses electric or pneumatic screwdrivers to tighten screws to the correct position. Automatic screw tightening machines play a vital role in modern industrial production, helping companies improve production efficiency, reduce costs, and enhance product quality and competitiveness.

[0003] Traditional automatic screw tightening machines mostly require operators to place screws one by one onto the device before the machine tightens them. This process is not only labor-intensive but also inefficient. Operators need to repeatedly place screws, which increases labor intensity and prolongs the overall production cycle. Secondly, the manual screw placement process poses certain safety risks. Operators may be injured by screwdriver bits or other machine parts, compromising their safety and affecting the tightening effect, product quality, and efficiency of the machine.

[0004] Therefore, those skilled in the art have provided a novel automatic screw tightening machine to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel automatic screw tightening machine. This machine is equipped with a screw hopper whose inner wall, along with its mating mounting block and fixing block, are designed with a slope. When the cylinder drives the mounting block downwards, the screws in the hopper slide onto the mounting block and then roll into the feeding channel. A groove in the middle of the feeding channel allows the screw to fall accurately into the groove, while the screw head is held in place by the sides of the groove, ensuring the correct orientation. At this point, the output end of the first telescopic rod pushes the push block, pushing the neatly arranged screws into a long cylinder. The diameter of the long cylinder is close to the size of the screw head, leaving only a small gap to prevent significant displacement of the screw during its descent. Finally, the screw falls through the long cylinder into the locking hole. The operator only needs to periodically refill the screw hopper, thus improving the working efficiency of the screw tightening machine. This system reduces labor costs and minimizes safety risks for operators. A second motor drives the rotation of the threaded rod, whose threads connect to a guide block, allowing the guide block to reciprocate linearly along the rod. A second electric telescopic rod adjusts the height of the operating block, while a first motor controls the rotation of the operating table. When a screw is caught in one of the engagement holes on the operating table, the first motor starts, rotating the table to align the other engagement holes with the outlet of the long cylinder until all holes are filled with screws. Then, the second motor starts, pushing the guide block forward until it is positioned below the screwdriver head. The second electric telescopic rod adjusts the overall height to be close to the drill bit. Next, the third motor starts, driving the drill bit to tighten the screws. Once tightening is complete, the operator simply removes all the tightened screws. This significantly reduces the need for manual operation, achieving a high degree of semi-automation and improving production efficiency and safety.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A novel automatic screw tightening machine includes a base. A mounting frame is fixedly connected to the center of the other side of the upper surface of the base, near the center. A screw hopper is fixedly connected to the center of the upper surface of the mounting frame. Mounting grooves are provided at the front and rear ends of the center of the upper surface of the mounting frame and at the front and rear ends of the bottom surface of the screw hopper. A cylinder is fixedly connected to the center of the bottom surface of the mounting frame. A mounting block is fixedly connected to the output end of the cylinder. Fixing blocks are fixedly connected to the front and rear ends of the bottom surface of the screw hopper, near the center. Feeding channels are fixedly connected to adjacent surfaces of the fixing blocks. A long cylinder is fixedly connected to one side of the outer wall of the feeding channel. A slot is provided in the center of one side of the outer wall of the screw hopper. A push groove is provided in the center of the other side of the outer wall of the screw hopper. A column is fixedly connected to the center of the other side of the upper surface of the base. A telescopic rod is fixedly connected to the upper end of one side of the outer wall of the column. A push block is fixedly connected to the output end of the telescopic rod. A cylinder is fixedly connected to the center of the other side of the upper surface of the base. A support block is fixedly connected. A guide groove is formed in the middle of the upper surface of the support block. Threaded rods are rotatably connected to the middle of the front and rear ends of the inner wall of the guide groove. A guide block is threaded to the outer wall of the threaded rod. Adjustment grooves are formed on both sides of the inner wall of the guide groove. A first motor housing is fixedly connected to the middle of the upper surface of the guide block. A first motor is fixedly connected to the bottom surface of the first motor housing. A second motor housing is fixedly connected to the middle of the rear end of the outer wall of the support block. A second motor is fixedly connected to the bottom surface of the second motor housing. A connecting block is provided at the output end of the first motor. Multiple second electric telescopic rods are fixedly connected around the upper surface of the connecting block. An operating block is fixedly connected to the output end of each second electric telescopic rod. Multiple snap-fit ​​holes are formed around the upper surface of the operating block. A shelf is fixedly connected to the front end of one side of the upper surface of the base. A third motor housing is fixedly connected to the middle of the inner bottom surface of the upper end of the shelf. A third motor is fixedly connected to the bottom surface of the third motor housing. A screwdriver head is provided at the output end of the third motor.

[0007] Through the above technical solution, this new type of automatic screw tightening machine is equipped with a screw hopper. The inner wall of the hopper, as well as the mating mounting block and fixing block, are designed with a certain slope. When the cylinder drives the mounting block downwards, the screws in the screw hopper slide onto the mounting block and then roll into the feeding channel. A groove is provided in the middle of the feeding channel, and the screw portion falls accurately into this groove. The screw head is held in place by the sides of the groove, ensuring the correct orientation of the screw. At this time, the output end of the first telescopic rod pushes the push block, pushing the neatly arranged screws into the long cylinder. The diameter of the long cylinder is close to the size of the screw head, leaving only a small gap, so that the screw does not experience significant displacement during its descent. Finally, the screw falls through the long cylinder into the locking hole. The operator only needs to periodically refill the screw hopper, improving the working efficiency of the screw tightening machine, reducing labor costs, and also reducing operation... To mitigate personnel safety risks, a second motor drives the rotation of the threaded rod. The threads on the threaded rod connect to a guide block, allowing the guide block to reciprocate linearly along the threaded rod. Simultaneously, a second electric telescopic rod adjusts the height of the operating block, while a first motor controls the rotation of the operating table. When a screw is caught in one of the locking holes on the operating table, the first motor starts, rotating the operating table so that the other locking holes align sequentially with the outlet of the long cylinder until all locking holes are filled with screws. Then, the second motor starts, pushing the guide block forward until it is positioned below the screwdriver head at the front. The second electric telescopic rod adjusts the overall height to be close to the drill bit. Immediately afterwards, the third motor starts, driving the drill bit to begin tightening the screws. After tightening, the operator simply needs to remove all the tightened screws, significantly reducing the need for manual operation, achieving a high degree of semi-automation, and improving production efficiency and safety.

[0008] Furthermore, the outer walls of the mounting blocks all slide on the inner wall of the mounting groove;

[0009] The above technical solution allows the outer wall of the mounting block to slide against the inner wall of the mounting groove, ensuring precise vertical movement of the mounting block. This design prevents the mounting block from shifting or wobbling during movement, thus ensuring that the screws accurately slide from the hopper into the feeding channel.

[0010] Furthermore, the outer wall of the feeding channel is fixedly connected to the inner wall of the slot;

[0011] The above technical solution prevents the feeding channel from shifting or misaligning during installation, thus ensuring that the screws can accurately enter the long cylinder from the feeding channel.

[0012] Furthermore, the outer walls of the guide blocks are all slidably connected to the inner walls of the adjusting grooves;

[0013] The above technical solution allows the guide block to slide within the adjustment groove, ensuring the accuracy of the guide block during linear motion.

[0014] Furthermore, the output end of the No. 1 motor penetrates the upper surface of the No. 1 motor housing and is fixedly connected to the connecting block;

[0015] Through the above technical solution, the output end of motor number one is directly and fixedly connected to the connecting block, ensuring the accuracy and efficiency of power transmission. This design prevents power loss or deviation during transmission, thereby ensuring the precise rotation of the control panel.

[0016] Furthermore, the output end of the No. 3 motor passes through the shelf and is fixedly connected to the screwdriver head;

[0017] Through the above technical solution, the No. 3 motor, by directly connecting to the screwdriver bit, can achieve precise torque and speed control. This design allows the screwdriver bit to tighten screws at a predetermined torque and speed, ensuring consistent tightening quality for each screw.

[0018] Furthermore, a control panel is fixedly connected to the upper part of the rear end of the outer wall of the column;

[0019] The above technical solutions improve the ease of operation and the integration of the equipment.

[0020] This utility model has the following beneficial effects:

[0021] 1. This utility model proposes a novel automatic screw tightening machine. This machine is equipped with a screw hopper, the inner wall of which, along with its mating mounting block and fixing block, are designed with a certain slope. When the cylinder drives the mounting block downwards, the screws in the screw hopper slide onto the mounting block and roll further into the feeding channel. A groove is provided in the middle of the feeding channel, and the screw part accurately falls into this groove, while the screw head is held in place by the sides of the groove, ensuring the correct orientation of the screw. At this time, the output end of the first telescopic rod pushes the push block, pushing the neatly arranged screws into a long cylinder. The diameter of the long cylinder is close to the size of the screw head, leaving only a small gap, so that the screw does not undergo large displacement during its descent. Finally, the screw falls through the long cylinder into the locking hole. The operator only needs to periodically refill the screw hopper with screws, improving the working efficiency of the screw tightening machine, reducing labor costs, and also reducing the safety risks for the operator.

[0022] 2. This utility model proposes a novel automatic screw tightening machine. This machine uses a second motor to drive a threaded rod to rotate. The threads on the threaded rod are connected to a guide block, allowing the guide block to perform linear reciprocating motion on the threaded rod. Simultaneously, a second electric telescopic rod adjusts the height of the operating block, while a first motor controls the rotation of the operating table. When a screw is caught in one of the engagement holes on the operating table, the first motor starts, rotating the operating table so that the other engagement holes are sequentially aligned with the outlet of the long cylinder until all engagement holes are filled with screws. Then, the second motor starts, pushing the guide block forward until it is positioned below the screwdriver head at the front. The second electric telescopic rod adjusts the overall height to be close to the drill bit. Immediately afterwards, the third motor starts, driving the drill bit to begin tightening the screws. After tightening, the operator only needs to remove all the tightened screws, significantly reducing the need for manual operation, achieving a high degree of semi-automation, and improving production efficiency and safety. Attached Figure Description

[0023] Figure 1 This is an isometric view of a novel automatic screw tightening machine proposed in this utility model;

[0024] Figure 2 This is an exploded view of a novel automatic screw tightening machine proposed in this utility model;

[0025] Figure 3 This is a side view of a novel automatic screw tightening machine proposed in this utility model;

[0026] Figure 4 This is a top view of a novel automatic screw tightening machine proposed in this utility model;

[0027] Figure 5 This is a front view of a novel automatic screw tightening machine proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Mounting bracket; 3. Screw hopper; 4. Mounting slot; 5. Cylinder; 6. Mounting block; 7. Fixing block; 8. Feeding channel; 9. Long cylinder; 10. Slot; 11. Push groove; 12. Column; 13. No. 1 telescopic rod; 14. Push block; 15. Support block; 16. Guide groove; 17. Threaded rod; 18. Guide block; 19. Adjustment groove; 20. No. 1 motor housing; 21. No. 1 motor; 22. No. 2 motor housing; 23. No. 2 motor; 24. Connecting block; 25. No. 2 electric telescopic rod; 26. Operating block; 27. Snap-fit ​​hole; 28. Shelf; 29. ​​No. 3 motor housing; 30. No. 3 motor; 31. Screwdriver head; 32. Control panel. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Reference Figure 1-3 One specific embodiment provided by this utility model:

[0032] A novel automatic screw tightening machine includes a base 1. A mounting frame 2 is fixedly connected to the center of the other side of the upper surface of the base 1 near the center. A screw hopper 3 is fixedly connected to the center of the upper surface of the mounting frame 2. Mounting grooves 4 are provided at the front and rear ends of the center of the upper surface of the mounting frame 2 and at the front and rear ends of the inner bottom surface of the screw hopper 3. A cylinder 5 is fixedly connected to the center of the inner bottom surface of the mounting frame 2. A mounting block 6 is fixedly connected to the output end of the cylinder 5. Fixing blocks 7 are fixedly connected to the front and rear ends of the inner bottom surface of the screw hopper 3 near the center. Feeding channels 8 are fixedly connected to adjacent surfaces of the fixing blocks 7. A long cylinder 9 is fixedly connected to one side of the outer wall of the feeding channel 8. A slot 10 is provided in the center of one side of the outer wall of the screw hopper 3, and a push groove is provided in the center of the other side of the outer wall of the screw hopper 3. 11. A column 12 is fixedly connected to the middle of the other side of the upper surface of the base 1. A telescopic rod 13 is fixedly connected to the upper end of one side of the outer wall of the column 12. A push block 14 is fixedly connected to the output end of the telescopic rod 13. A support block 15 is fixedly connected to one side of the upper surface of the base 1. A guide groove 16 is opened in the middle of the upper surface of the support block 15. A threaded rod 17 is rotatably connected to the middle of the front and rear ends of the inner wall of the guide groove 16. A guide block 18 is threadedly connected to the outer wall of the threaded rod 17. An adjustment groove 19 is opened on both sides of the inner wall of the guide groove 16. A motor housing 20 is fixedly connected to the middle of the upper surface of the guide block 18. A motor 21 is fixedly connected to the bottom of the inner surface of the motor housing 20. A motor housing 22 is fixedly connected to the middle of the rear end of the outer wall of the support block 15. A second motor 23 is fixedly connected to the bottom inner surface of the housing 22 of the second motor. A connecting block 24 is provided at the output end of the first motor 21. Multiple second electric telescopic rods 25 are fixedly connected around the upper surface of the connecting block 24. An operating block 26 is fixedly connected to the output end of each second electric telescopic rod 25. Multiple snap-fit ​​holes 27 are provided around the upper surface of the operating block 26. A shelf 28 is fixedly connected to the front end of one side of the upper surface of the base 1. A third motor housing 29 is fixedly connected to the middle of the inner bottom surface of the upper end of the shelf 28. A third motor 30 is fixedly connected to the bottom inner surface of the third motor housing 29. A screwdriver head 31 is provided at the output end of the third motor 30. This new automatic screw tightening machine is equipped with a screw hopper 3, the inner wall of which, as well as the mounting block 6 and fixing block 7 that cooperate with it, are all Designed with a slope, when cylinder 5 drives mounting block 6 downwards, the screws in screw hopper 3 slide onto mounting block 6 and roll further into feeding channel 8. Feeding channel 8 has a groove in the middle, where the screw part falls accurately, while the screw head is held in place by the sides of the groove, ensuring the correct orientation of the screw. At this time, the output end of telescopic rod 13 pushes push block 14, pushing the neatly arranged screws into long cylinder 9. The diameter of long cylinder 9 is close to the size of the screw head, leaving only a small gap, preventing large displacement of the screw during descent. Finally, the screw falls into locking hole 27 through long cylinder 9. Operators only need to periodically refill screw hopper 3, improving the working efficiency of the screw tightening machine.This system reduces labor costs and minimizes operator safety risks. A second motor (23) drives the rotation of the threaded rod 17, whose threads connect to a guide block 18, allowing the guide block 18 to reciprocate linearly along the threaded rod. Simultaneously, a second electric telescopic rod (25) adjusts the height of the operating block 26, while a first motor (21) controls the rotation of the operating table. When a screw is caught in one of the engagement holes (27) on the operating table, the first motor (21) starts, rotating the operating table so that the other engagement holes (27) align sequentially with the outlet of the long cylinder 9 until all engagement holes (27) are filled with screws. Then, the second motor (23) starts, pushing the guide block 18 forward until it is below the screwdriver head 31 at the front. The second electric telescopic rod (25) adjusts the overall height to be close to the drill bit. Next, the third motor (30) starts, driving the drill bit to tighten the screws. After tightening, the operator simply removes all the tightened screws, significantly reducing the need for manual operation, achieving a high degree of semi-automation, and improving production efficiency and safety.

[0033] Reference Figure 3-5 The outer wall of the mounting block 6 slides on the inner wall of the mounting groove 4, ensuring precise vertical movement of the mounting block 6. This design prevents the mounting block 6 from shifting or shaking during movement, thus ensuring that the screw can accurately slide from the hopper into the feeding channel 8. The outer wall of the feeding channel 8 is fixedly connected to the inner wall of the slot 10, preventing the feeding channel 8 from shifting or misaligning during installation, thus ensuring that the screw can accurately enter the long cylinder 9 from the feeding channel 8. The outer wall of the guide block 18 slides on the inner wall of the adjusting groove 19, ensuring the accuracy of the guide block 18 during linear movement. The output end of the first motor 21 passes through the upper surface of the first motor housing 20 and is fixedly connected to the connecting block 24.

[0034] The output end of motor 21 is directly and fixedly connected to the connecting block 24, ensuring the accuracy and efficiency of power transmission. This design can prevent power loss or deviation during transmission, thereby ensuring the accurate rotation of the operating table. The output end of motor 30 passes through the shelf 28 and is fixedly connected to the screwdriver head 31. By directly connecting motor 30 to screwdriver head 31, precise torque and speed control can be achieved. This design allows screwdriver head 31 to tighten screws at a predetermined torque and speed, ensuring that the tightening quality of each screw is consistent. The upper part of the rear end of the column 12 is fixedly connected to the control panel 32, which improves the convenience of operation and the integration of the equipment.

[0035] Working Principle: When using this new type of automatic screw tightening machine, the operator first pours the screws into the screw hopper 3, then uses the control panel 32 to start the device. The inner wall of the screw hopper 3, as well as the cooperating mounting block 6 and fixing block 7, are designed with a certain slope. The cylinder 5 drives the mounting block 6 downwards. Utilizing the slope, the screws in the screw hopper 3 slide onto the mounting block 6. The screws then roll into the feeding channel 8, which has a groove in the middle to ensure the screw part falls accurately into the groove. The screw head is held in place by the sides of the groove, ensuring the correct orientation of the screw. The output end of the first telescopic rod 13 pushes the pusher block 14, pushing the neatly arranged screws into the long cylinder 9. The diameter of the long cylinder 9 is close to the size of the screw head, leaving only a small gap, so that the screw does not shift significantly during its descent. Finally, the screw falls through the long cylinder 9 into the locking holes 27 on the operating table. The operating table has multiple locking holes 27. Used to catch screws falling from the long cylinder 9, when a screw is caught in one of the locking holes 27 on the operating table, motor 21 starts and rotates the operating table so that the other locking holes 27 are aligned with the outlet of the long cylinder 9 in sequence. This process continues until all locking holes 27 are filled with screws. Motor 23 drives the threaded rod 17 to rotate. The thread on the threaded rod 17 is connected to the guide block 18, so that the guide block 18 can make linear reciprocating motion on the threaded rod 17. At the same time, the second electric telescopic rod 25 can adjust the height of the operating block 26, while motor 21 controls the rotation of the operating table. When the locking hole 27 at the front is aligned with the bottom of the screwdriver head 31, the second electric telescopic rod 25 adjusts the overall height to be close to the drill bit. Then, motor 30 starts and drives the drill bit to start tightening the screws. After tightening is completed, the operator only needs to remove all the tightened screws. The whole process is highly automated, greatly reducing the need for manual operation. Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A new type of automatic screw tightening machine comprising a base (1), characterized in that: The middle part of the other side of the upper surface of the base (1) is fixedly connected with a mounting rack (2), the middle part of the upper surface of the mounting rack (2) is fixedly connected with a screw hopper (3), the front end and the rear end of the upper surface center of the mounting rack (2) and the front end and the rear end of the inner bottom surface of the screw hopper (3) are provided with mounting grooves (4), the inner bottom surface of the mounting rack (2) is fixedly connected with a gas cylinder (5), the output end of the gas cylinder (5) is fixedly connected with a mounting block (6), the front end and the rear end of the inner bottom surface of the screw hopper (3) near the center are fixedly connected with fixed blocks (7), the adjacent surfaces of the fixed blocks (7) are fixedly connected with feeding channels (8), one side of the outer wall of the feeding channel (8) is fixedly connected with a long barrel (9), the middle part of one side of the outer wall of the screw hopper (3) is provided with a slot (10), the middle part of the other side of the outer wall of the screw hopper (3) is provided with a push groove (11), the middle part of the other side of the upper surface of the base (1) is fixedly connected with a stand (12), the upper end of one side of the outer wall of the stand (12) is fixedly connected with a first telescopic rod (13), the output end of the first telescopic rod (13) is fixedly connected with a push block (14). The side of the upper surface of the base (1) is fixedly connected with a supporting block (15), the middle part of the upper surface of the supporting block (15) is provided with a guide groove (16), the middle part of the front end and the rear end of the inner wall of the guide groove (16) is rotatably connected with a threaded rod (17), the outer wall of the threaded rod (17) is threadedly connected with a guide block (18), both sides of the inner wall of the guide groove (16) are provided with adjusting grooves (19), the middle part of the upper surface of the guide block (18) is fixedly connected with a first motor housing (20), the inner bottom surface of the first motor housing (20) is fixedly connected with a first motor (21), the middle part of the rear end of the outer wall of the supporting block (15) is fixedly connected with a second motor housing (22), the inner bottom surface of the second motor housing (22) is fixedly connected with a second motor (23), the output end of the first motor (21) is provided with a connecting block (24), the upper surface of the connecting block (24) is fixedly connected with a plurality of second electric telescopic rods (25), the output ends of the second electric telescopic rods (25) are fixedly connected with operation blocks (26), a plurality of clamping holes (27) are formed in the upper surface of the operation block (26). The front end of the side of the upper surface of the base (1) is fixedly connected with a storage rack (28), the middle part of the inner bottom surface of the upper end of the storage rack (28) is fixedly connected with a third motor housing (29), the inner bottom surface of the third motor housing (29) is fixedly connected with a third motor (30), the output end of the third motor (30) is provided with a screwdriver head (31).

2. A new type of automatic screw tightening machine according to claim 1, characterized in that: The outer wall of the mounting block (6) slides on the inner wall of the mounting groove (4).

3. A new type of automatic screw tightening machine according to claim 1, characterized in that: The outer wall of the feeding channel (8) is fixedly connected with the inner wall of the slot (10).

4. A new type of automatic screw tightening machine according to claim 1, characterized in that: The outer wall of the guide block (18) is slidably connected with the inner wall of the adjusting groove (19).

5. A new type of automatic screw tightening machine according to claim 1, characterized in that: The output end of the first motor (21) penetrates the upper surface of the first motor housing (20) and is fixedly connected with the connecting block (24).

6. A new type of automatic screw tightening machine according to claim 1, characterized in that: The output end of the third motor (30) penetrates through the rack (28) and is fixedly connected with the screwdriver head (31).

7. A new type of automatic screw tightening machine according to claim 1, characterized in that: The upper part of the rear end of the outer wall of the column (12) is fixedly connected with the control panel (32).

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