Single-rail high-speed screw machine
By introducing two feeding systems and a buffer mechanism into the monorail screw machine, the problems of material jamming and material shortage caused by a single feeding system are solved, achieving continuous feeding and efficient fastening, and improving production efficiency and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-26
- Publication Date
- 2026-03-27
AI Technical Summary
The existing single-track screw machine's single-set feeding system requires machine shutdown for maintenance or replenishment when there is a jam or shortage of material, resulting in production interruption, affecting production cycle and operating efficiency, and requiring frequent manual intervention.
The system employs left and right screw feeding mechanisms and a screw feeding switching mechanism to enable flexible switching between the two feeding systems. Combined with a large-capacity hopper and a mid-section buffer mechanism, it reduces the frequency of manual replenishment and improves feeding stability and locking efficiency.
It achieves continuous material supply and stable production, improves operational efficiency, reduces manual intervention, shortens locking time, and enhances production continuity and locking efficiency.
Smart Images
Figure CN121733232A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of single-rail high-speed screw machine technology, specifically a single-rail high-speed screw machine. Background Technology
[0002] Screw fastening is a key process in product assembly, and monorail screw fastening machines are widely used due to their compact structure and small footprint.
[0003] Currently, most monorail screw machines on the market use a single screw feeding system in conjunction with a fastening mechanism to complete the operation. The technical solution is relatively mature. However, in actual mass production, when the single feeding system experiences problems such as jamming or material shortage, the machine needs to be stopped for maintenance or replenishment, which interrupts the entire screw fastening process and affects the production cycle. In addition, the continuous operation of the single feeding system requires operators to frequently replenish the material, which can easily lead to another interruption of the feeding process due to untimely replenishment. This results in insufficient feeding stability, limited operating efficiency, and a high frequency of manual intervention.
[0004] Therefore, a single-rail high-speed screw machine is proposed to solve the problems mentioned above. Summary of the Invention
[0005] To address the shortcomings of existing technologies, this invention provides a single-rail high-speed screw machine. Through the cooperation of a left-side screw feeding mechanism, a right-side screw feeding mechanism, and a screw feeding switching mechanism, flexible switching between two feeding systems is achieved. When one feeding mechanism experiences a jam or shortage, it can quickly switch to the other mechanism to continue feeding, avoiding feeding interruptions and improving production continuity and operational efficiency. The large-capacity screw hopper, combined with direct vibration replenishment, reduces the frequency of manual replenishment. The right-side and left-side screw mid-section buffer mechanisms allow for pre-storing of a certain amount of screws, shortening the waiting time for screws in the fastening mechanism and further improving fastening efficiency. This invention solves the problems mentioned in the background section.
[0006] To achieve the above objectives, the present invention provides the following technical solution: including a base and a left screw feeding mechanism, a right screw feeding mechanism, a right screw mid-section buffer mechanism, a left screw mid-section buffer mechanism, a left screw fastening mechanism, and a right screw fastening mechanism disposed on the base, wherein the left screw feeding mechanism, the right screw mid-section buffer mechanism, and the left screw fastening mechanism are symmetrically arranged with the right screw feeding mechanism, the left screw mid-section buffer mechanism, and the right screw fastening mechanism; A screw feeding switching mechanism is provided between the left screw feeding mechanism and the right screw feeding mechanism. The screw feeding switching mechanism includes a screw outlet, a switching cylinder, a screw inlet of the left feeding mechanism and a screw inlet of the right feeding mechanism. The screw inlet of the left feeding mechanism is connected to the left screw feeding mechanism through an air pipe, and the screw inlet of the right feeding mechanism is connected to the right screw feeding mechanism through an air pipe. The two screw outlets are respectively connected to the right screw middle section buffer mechanism and the left screw middle section buffer mechanism through air pipes. The upper surface of the base is provided with an upper rail and a lower rail, and a gantry moving mechanism is provided above the upper rail.
[0007] Preferably, the upper track is fixed on the upper side of the lower track. The upper track includes an inlet track, a middle track, and an outlet track. A bottom lifting mechanism is provided on the lower side of the upper track, and a blocking side-pushing mechanism is provided on the inner side of the upper track.
[0008] Preferably, both the left and right screw feeding mechanisms are equipped with screw hoppers and vibratory feeders. A direct vibratory feeder is provided below the screw hopper, and a double direct vibratory track is connected to the outlet of the vibratory feeder. A screw dispensing mechanism is provided at the outlet of the double direct vibratory track.
[0009] Preferably, the screw distribution mechanism includes a suction nozzle, a blowing position, a double-crank slider suction and blowing mechanism, a slider, and a distribution motor. The output shaft of the distribution motor is connected to the double-crank slider suction and blowing mechanism, and the suction nozzle is located at one end of the double-crank slider suction and blowing mechanism near the double linear vibrating track.
[0010] Preferably, the dispensing motor is connected to a fixed plate, the blowing position is located at the end of the fixed plate near the suction nozzle, and the side of the fixed plate opposite to the blowing position is connected to the screw outlet of the feeding mechanism.
[0011] Preferably, the telescopic end of the switching cylinder is connected to a feeding switching slider, and the screw outlet is fixedly installed with the feeding switching slider.
[0012] Preferably, both the right screw mid-section buffer mechanism and the left screw mid-section buffer mechanism are equipped with a cylinder and a push block, and the telescopic end of the cylinder is connected to the push block.
[0013] Preferably, both ends of the right screw mid-section buffer mechanism and the left screw mid-section buffer mechanism are provided with screw inlets and screw outlets, and a chuck is provided between the screw inlets and the screw outlets.
[0014] Preferably, both the left and right screw fastening mechanisms are equipped with a motor, lead screw, compression spring, magnetic grid, servo electric screwdriver, chuck, and vision device.
[0015] Compared with the prior art, the present invention provides a single-rail high-speed screw machine, which has the following beneficial effects: 1. Through the cooperation of the left screw feeding mechanism, the right screw feeding mechanism and the screw feeding switching mechanism, the two feeding systems can be flexibly switched. When one feeding mechanism fails to feed material or is short of material, it can be quickly switched to the other mechanism to continue feeding material, avoiding the problem of feeding interruption and improving production continuity and operation efficiency.
[0016] 2. The large-capacity design of the screw hopper, combined with the direct vibration of the hopper for replenishment, reduces the frequency of manual replenishment.
[0017] 3. By setting up the right-side screw mid-section buffer mechanism and the left-side screw mid-section buffer mechanism, a certain amount of screws can be stored in advance, which shortens the waiting time of the locking mechanism and further improves the locking efficiency.
[0018] 4. The tooling products are circulated and transported through the cooperation of the upper and lower rails. The positioning of the bottom lifting mechanism and the blocking side push mechanism ensures the stability of the tooling products during the locking process. Attached Figure Description
[0019] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is an isometric structural schematic diagram of the single-rail high-speed screw machine of the present invention; Figure 2 A schematic diagram of the upper and lower rail structures provided for the monorail high-speed screw machine of the present invention; Figure 3 A schematic diagram of the feeding mechanism provided by the single-rail high-speed screw machine of the present invention; Figure 4 A schematic diagram of the feeding switching mechanism provided by the single-rail high-speed screw machine of the present invention; Figure 5 This is a schematic diagram of the screw mid-section buffer mechanism provided by the single-rail high-speed screw machine of the present invention; Figure 6 A schematic cross-sectional view of the screw mid-section buffer mechanism provided by the single-rail high-speed screw machine of the present invention; Figure 7 This is a schematic diagram of the screw fastening mechanism provided by the single-rail high-speed screw machine of the present invention.
[0020] In the diagram: 1. Base; 2. Left screw feeding mechanism; 3. Right screw feeding mechanism; 4. Screw feeding switching mechanism; 5. Gantry moving mechanism; 6. Upper rail; 7. Lower rail; 8. Right screw mid-section buffer mechanism; 9. Left screw mid-section buffer mechanism; 10. Left screw locking mechanism; 11. Right screw locking mechanism; 601. Inlet rail; 602. Mid-section rail; 603. Outlet rail; 12. Bottom lifting mechanism; 13. Blocking side push mechanism; 14. Straight vibration hopper; 15. Screw hopper; 16. Vibrating plate; 17. Dual straight vibration rails; 18. Screw distribution mechanism ; 19. Suction nozzle; 20. Blowing position; 21. Double crank slider suction and blowing mechanism; 22. Slider; 23. Distributing motor; 24. Feeding mechanism screw outlet; 401. Screw outlet; 402. Switching cylinder; 403. Left feeding mechanism screw inlet; 404. Right feeding mechanism screw inlet; 25. Cylinder; 26. Push block; 27. Screw blowing inlet; 28. Buffer chuck; 29. Buffer screw outlet; 32. Motor; 33. Lead screw; 34. Compression spring; 35. Magnetic grid; 36. Servo motor; 37. Chuck; 38. Vision; 39. Fixing plate; 40. Feeding switching slider. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example
[0022] Please see Figure 1 - Figure 7 This embodiment of a single-rail high-speed screw machine includes a base 1 and a left screw feeding mechanism 2, a right screw feeding mechanism 3, a right screw mid-section buffer mechanism 8, a left screw mid-section buffer mechanism 9, a left screw fastening mechanism 10, and a right screw fastening mechanism 11 disposed on the base 1. The left screw feeding mechanism 2, the right screw mid-section buffer mechanism 8, the left screw fastening mechanism 10 and the right screw feeding mechanism 3, the left screw mid-section buffer mechanism 9, and the right screw fastening mechanism 11 are symmetrically arranged. A screw feeding switching mechanism 4 is provided between the left screw feeding mechanism 2 and the right screw feeding mechanism 3. The screw feeding switching mechanism 4 includes a screw outlet 401, a switching cylinder 402, a screw inlet 403 of the left feeding mechanism and a screw inlet 404 of the right feeding mechanism. The screw inlet 403 of the left feeding mechanism is connected to the left screw feeding mechanism 2 through an air pipe, and the screw inlet 404 of the right feeding mechanism is connected to the right screw feeding mechanism 3 through an air pipe. The two screw outlets 401 are respectively connected to the right screw middle section buffer mechanism 8 and the left screw middle section buffer mechanism 9 through air pipes. The upper surface of the base 1 is provided with an upper rail 6 and a lower rail 7. A gantry moving mechanism 5 is provided above the upper rail 6. Two screw feeding mechanisms are symmetrically arranged. The feeding of the two screw feeding mechanisms is switched by the screw feeding switching mechanism 4. The upper rail 6 and the lower rail 7 are used to transport the tooling products. The gantry moving mechanism 5 is provided with a double-headed X-axis linear motor module and a Y-axis linear motor module. The gantry moving mechanism 5 is used to drive the left screw fastening mechanism 10 and the right screw fastening mechanism 11 to move above the tooling.
[0023] The upper rail 6 is fixed on the upper side of the lower rail 7. The upper rail 6 includes an inlet rail 601, a middle rail 602, and an outlet rail 603. The lower side of the upper rail 6 is provided with a bottom lifting mechanism 12, and the inner side of the upper rail 6 is provided with a blocking side pushing mechanism 13. The inlet rail 601, the middle rail 602, and the outlet rail 603 of the upper rail 6 are connected in sequence and each is controlled by an independent motor. The tooling enters from the inlet rail and waits. After being transported to the middle rail, the bottom lifting mechanism and the blocking side pushing mechanism work together to position and clamp the product. After the work is completed, it is transported to the outlet rail. The lower rail is responsible for the return of the tooling.
[0024] Both the left screw feeding mechanism 2 and the right screw feeding mechanism 3 are equipped with screw hoppers 15 and vibratory feeders 16. Below the screw hopper 15 is a hopper direct vibrator 14. The outlet of the vibratory feeder 16 is connected to a double direct vibratory track 17. The outlet of the double direct vibratory track 17 is equipped with a screw distribution mechanism 18. The screw hopper is used to store a large number of screws, reducing the need for frequent manual replenishment. The screws are fed to the vibratory feeder as needed through the bottom outlet of the hopper. The screws are screened and sorted by the vibratory feeder and the double direct vibratory track, and then distributed one by one by the screw distribution mechanism.
[0025] The screw distribution mechanism 18 includes a suction nozzle 19, a blowing position 20, a double-crank slider suction and blowing mechanism 21, a slider 22, and a distribution motor 23. The output shaft of the distribution motor 23 is connected to the double-crank slider suction and blowing mechanism 21. The suction nozzle 19 is located at one end of the double-crank slider suction and blowing mechanism 21 near the double-linear vibration track 17. The double-crank slider suction and blowing mechanism 21 includes two connecting rods. One connecting rod is connected to the output shaft of the motor, and the other rod is connected to the slider. When the motor rotates, it drives the slider to slide back and forth. The double-crank slider suction and blowing mechanism picks up the distributed screws and transfers them to the blowing position for high-speed conveying. The mechanism drives the slider to move back and forth through the rotation of the motor. The movement of the slider drives the suction nozzle to swing back and forth, thereby realizing the transfer of screws.
[0026] The dispensing motor 23 is connected to a fixed plate 39. The blowing position 20 is located at one end of the fixed plate 39 near the suction nozzle 19. The side of the fixed plate 39 opposite to the blowing position 20 is connected to the screw outlet 24 of the feeding mechanism. The suction nozzle 19 transfers the screws in the double linear vibration track 17 to the blowing position 20, and they fall from the blowing position 20 into the screw outlet 24 of the feeding mechanism. The screw outlet 24 of the feeding mechanism is connected to the screw feeding switching mechanism 4 through an air pipe.
[0027] The telescopic end of the switching cylinder 402 is connected to the feeding switching slider 40. The screw outlet 401 is fixedly installed with the feeding switching slider 40. The screw feeding switching mechanism is used to switch between two sets of screw feeding mechanisms. When one set of screw feeding mechanisms is stuck or lacks material, it can be switched to another set of mechanisms to achieve uninterrupted screw feeding. The mechanism is controlled by the switching cylinder pushing the slider to control the position of the screw outlet to match the screw inlet of different feeding mechanisms.
[0028] Both the right-side screw mid-section buffer mechanism 8 and the left-side screw mid-section buffer mechanism 9 are equipped with cylinders 25 and push blocks 26. The telescopic end of the cylinder 25 is connected to the push block 26. Both ends of the right-side screw mid-section buffer mechanism 8 and the left-side screw mid-section buffer mechanism 9 are equipped with screw inlets 27 and buffer screw outlets 29. Buffer claws 28 are located between the screw inlets 27 and the buffer screw outlets 29. Screws enter the buffer mechanism through the screw inlets 27, which are connected to the buffer screw outlets 29. After entering the buffer mechanism, the screws fall from the screw inlets 27 to the buffer screw outlets 29 due to gravity. During the falling process, they are caught by the buffer claws 28. The cylinder 25 pushes the push block 26, which forces the buffer claws 28 to separate. Long-distance screw transport is time-consuming. The buffer mechanism can transport screws in advance, reducing waiting time and improving efficiency.
[0029] Both the left screw fastening mechanism 10 and the right screw fastening mechanism 11 are equipped with a motor 32, a lead screw 33, a pressure spring 34, a magnetic grid 35, a servo motor 36, a chuck 37, and a vision device 38. The output shaft of the motor 32 is fixedly connected to the lead screw 33. The pressure spring 34 is located between the servo motor 36 and the fixed plate. The motor drives the servo electric screwdriver to rise and fall through the lead screw. The fastening pressure of the electric screwdriver is controlled by the height of the pressure spring and the lead screw. The position of the screw after fastening is detected by the magnetic grid. The vision device detects whether the screw on the chuck is vertical.
[0030] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function.
[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A single-rail high-speed screw machine, characterized in that: It includes a base (1) and a left screw feeding mechanism (2), a right screw feeding mechanism (3), a right screw mid-section buffer mechanism (8), a left screw mid-section buffer mechanism (9), a left screw fastening mechanism (10), and a right screw fastening mechanism (11) disposed on the base (1). The left screw feeding mechanism (2), the right screw mid-section buffer mechanism (8), and the left screw fastening mechanism (10) are symmetrically arranged with the right screw feeding mechanism (3), the left screw mid-section buffer mechanism (9), and the right screw fastening mechanism (11). A screw feeding switching mechanism (4) is provided between the left screw feeding mechanism (2) and the right screw feeding mechanism (3). The screw feeding switching mechanism (4) includes a screw outlet (401), a switching cylinder (402), a screw inlet (403) of the left feeding mechanism and a screw inlet (404) of the right feeding mechanism. The screw inlet (403) of the left feeding mechanism is connected to the left screw feeding mechanism (2) through an air pipe, and the screw inlet (404) of the right feeding mechanism is connected to the right screw feeding mechanism (3) through an air pipe. The two screw outlets (401) are respectively connected to the right screw middle section buffer mechanism (8) and the left screw middle section buffer mechanism (9) through air pipes. The upper surface of the base (1) is provided with an upper rail (6) and a lower rail (7), and a gantry moving mechanism (5) is provided above the upper rail (6).
2. The single-rail high-speed screw machine according to claim 1, characterized in that: The upper track (6) is fixed on the upper side of the lower track (7). The upper track (6) includes an entrance track (601), a middle track (602) and an exit track (603). The lower side of the upper track (6) is provided with a bottom lifting mechanism (12), and the inner side of the upper track (6) is provided with a blocking side pushing mechanism (13).
3. A single-rail high-speed screw machine according to claim 1, characterized in that: Both the left screw feeding mechanism (2) and the right screw feeding mechanism (3) are equipped with screw hoppers (15) and vibratory feeders (16). Below the screw hoppers (15) is a hopper direct vibrator (14). The outlet of the vibratory feeder (16) is connected to a double direct vibratory track (17). The outlet of the double direct vibratory track (17) is equipped with a screw distribution mechanism (18).
4. A single-rail high-speed screw machine according to claim 3, characterized in that: The screw distribution mechanism (18) includes a suction nozzle (19), a blowing position (20), a double crank slider suction and blowing mechanism (21), a slider (22), and a distribution motor (23). The output shaft of the distribution motor (23) is connected to the double crank slider suction and blowing mechanism (21). The suction nozzle (19) is located at one end of the double crank slider suction and blowing mechanism (21) near the double linear vibrating track (17).
5. A single-rail high-speed screw machine according to claim 4, characterized in that: The dispensing motor (23) is connected to a fixing plate (39), the blowing position (20) is located at one end of the fixing plate (39) near the suction nozzle (19), and the side of the fixing plate (39) opposite to the blowing position (20) is connected to the screw outlet (24) of the feeding mechanism.
6. A single-rail high-speed screw machine according to claim 1, characterized in that: The telescopic end of the switching cylinder (402) is connected to the feeding switching slider (40), and the screw outlet (401) is fixedly installed with the feeding switching slider (40).
7. A single-rail high-speed screw machine according to claim 1, characterized in that: Both the right screw mid-section buffer mechanism (8) and the left screw mid-section buffer mechanism (9) are equipped with a cylinder (25) and a push block (26), and the telescopic end of the cylinder (25) is connected to the push block (26).
8. A single-rail high-speed screw machine according to claim 7, characterized in that: Both ends of the right screw middle section buffer mechanism (8) and the left screw middle section buffer mechanism (9) are provided with screw blowing inlet (27) and buffer screw outlet (29), and a buffer claw (28) is provided between the screw blowing inlet (27) and the buffer screw outlet (29).
9. A single-rail high-speed screw machine according to claim 1, characterized in that: Both the left screw fastening mechanism (10) and the right screw fastening mechanism (11) are equipped with a motor (32), a lead screw (33), a compression spring (34), a magnetic grid (35), a servo motor (36), a chuck (37), and a vision device (38).