Automatic screw locking machine

Abstract

The utility model relates to the technical field of automatic screw locking machines, and particularly discloses an automatic screw locking machine which comprises a working table, a frame is installed on the working table, a Y-axis moving part is installed on the working table, a workpiece clamp is installed on the Y-axis moving part, an X-axis moving part is installed on the frame, a Z-axis moving part is installed on the X-axis moving part, and the Z-axis moving part is installed on the Z-axis moving part. And a screw head is mounted on the Z-axis moving part. The Y-axis moving part moves a workpiece to the position below a screw head, at the moment, the feeding equipment feeds screws into a conveying groove in the feeding plate one by one, the screws slide into a U-shaped groove in a lug plate through an inclined face of the conveying groove in the feeding plate, at the moment, the X-axis moving part enables the screw head to move to the position above the lug plate, the Z-axis moving part enables the screw head to move downwards, the screws are accurately sucked, and the screws are conveyed to the feeding device. And if observation equipment monitors that the screw disappears, an alarm is given, and workers in a control room are warned.

Description

Technical Field

[0001] The utility model relates to the field of automatic screw locking machines, in particular to an automatic screw locking machine. Background Art

[0002] With the development of the mechanical field, screws are one of the most commonly used connectors in the assembly process of various workpieces. However, the birth of automatic screw locking machines meets the needs of assembling screws. They can automatically arrange and absorb screws, and then automatically assemble the screws to the workpiece.

[0003] However, during the use of the current automatic screw locking machine, due to the jamming of feeding, empty materials will appear, which makes it difficult to remind the staff to replenish the materials in time. At the same time, when empty materials appear, the staff will not repair them in time, which will cause the equipment to run idle. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic screw locking machine to solve the problem raised in the above background technology that the current automatic screw locking machine may run out of material due to material jam during use, making it inconvenient to remind the staff to replenish the material in time. At the same time, when the material is empty, the staff will not repair it in time, which will cause the equipment to run idle.

[0005] To achieve the above object, the utility model provides the following technical solution: an automatic screw locking machine, comprising a workbench, a frame mounted on the workbench, a Y-axis moving part mounted on the workbench, a workpiece fixture mounted on the Y-axis moving part, an X-axis moving part mounted on the frame, a Z-axis moving part mounted on the X-axis moving part, and a screw head mounted on the Z-axis moving part;

[0006] A feeding plate is installed in the square opening on the frame, a conveying trough is provided on the feeding plate, an ear plate is installed on the feeding plate, a U-shaped groove is provided on the ear plate, the U-shaped groove and the conveying trough are on the same horizontal plane, and a feeding device is provided on the outside of the feeding plate;

[0007] The frame is provided with a material discharge structure, which comprises an L-shaped plate, a servo motor, a first transverse plate, a second transverse plate, a first threaded hole, a second threaded hole and a threaded rod;

[0008] The L-shaped plate is mounted on the frame, the servo motor is mounted on the L-shaped plate, the first transverse plate is passed through an opening on one side of the frame, the second transverse plate is passed through an opening on the other side of the frame, the first threaded hole is provided on the first transverse plate, the second threaded hole is provided on the second transverse plate, the threaded rod is mounted on the output shaft of the servo motor, and the threaded rod is sleeved in the first threaded hole and the second threaded hole;

[0009] An observation device is installed on the L-shaped plate.

[0010] Preferably, the screw head is composed of a connecting shaft and a flower knife, the connecting shaft is installed on the Z-axis moving part, and the flower knife is installed on the connecting shaft.

[0011] Preferably, a spline groove is provided on the connecting shaft, a spline shaft is mounted on the flower knife, and the spline shaft is clamped in the spline groove.

[0012] Preferably, a clamping structure is installed between the spline groove and the spline shaft, the number of the clamping structures is not less than four, the clamping structures are annularly and equidistantly distributed between the spline groove and the spline shaft, and the clamping structure includes a groove, a spring, a ball and a clamping groove;

[0013] The groove is provided in the spline groove, the spring is installed in the groove, the ball is installed on the spring, the clamping groove is provided on the spline shaft, and the ball is clamped in the clamping groove.

[0014] Preferably, the flower knife is externally processed with a coating structure.

[0015] Preferably, a vertical block is installed at the end of the first transverse plate, and a vertical block is installed at the end of the second transverse plate.

[0016] Preferably, the ear plate is arranged parallel to the workbench.

[0017] Preferably, the inclination angle between the feeding plate and the workbench is between 10-15 degrees.

[0018] The utility model has at least the following beneficial effects:

[0019] 1. Arrange screws equidistantly between the first horizontal plate and the second horizontal plate as spares, so that the workpiece to be assembled is installed on the workpiece fixture, and the Y-axis moving part moves the workpiece to the position below the screw head. At this time, the feeding equipment feeds the screws into the conveying trough on the feeding plate one by one, and the screws slide into the U-shaped groove on the ear plate through the inclined surface of the conveying trough on the feeding plate. At this time, the X-axis moving part moves the screw head above the knife ear plate, and the Z-axis moving part moves the screw head downward, accurately absorbing the screw and assembling the screw to the workpiece. If the observation equipment detects that the screw disappears, an alarm will be issued to alert the staff in the control room. The staff will quickly start the remote control. At this time, the output shaft of the servo motor drives the threaded rod to rotate forward, so that the threaded rod rotates along the first threaded hole on the first horizontal plate and the second threaded hole on the second horizontal plate, so that the first horizontal plate and the second horizontal plate move outward together, so that the screws used as spares in advance are installed in the conveying trough on the feeding plate, so that the screws can be quickly replenished and the assembly work can be carried out, avoiding the staff arriving at the site and increasing the maintenance time, causing the screw machine to run idle.

[0020] 2. Insert the spline shaft on the flower knife into the spline groove on the connecting shaft. At this time, the spring in the groove will force the ball inward, so that the ball is stuck in the groove, and the flower knife is installed on the connecting shaft. When it is necessary to assemble the slotted screw, the flower knife can be quickly disassembled and the slotted knife can be assembled for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 This is a schematic diagram of the L-shaped plate, servo motor and first horizontal plate structure of the utility model.

[0023] Figure 3 This is a schematic diagram of the spline knife, spline shaft and slot structure of the utility model.

[0024] Figure 4 This is a schematic diagram of the groove, spring and ball structure of the utility model.

[0025] Figure 5 This is a schematic diagram of the feed plate, conveying trough and ear plate structure of the utility model.

[0026] Figure 6 This is a schematic diagram of the Hanako knife and coating structure of the present invention.

[0027] In the figure: 1. Workbench; 2. Frame; 3. Y-axis moving part; 4. Workpiece fixture; 5. X-axis moving part; 6. Z-axis moving part; 7. Screw head; 8. Feed plate; 9. Conveyor trough; 10. Ear plate; 11. U-shaped groove; 12. Feeding equipment; 13. Discharging structure; 14. L-shaped plate; 15. Servo motor; 16. First horizontal plate; 17. Second horizontal plate; 18. First threaded hole; 19. Second threaded hole; 20. Threaded rod; 21. Observation device; 22. Vertical block; 23. Connecting shaft; 24. Spline knife; 25. Spline groove; 26. Spline shaft; 27. Clamping structure; 28. Groove; 29. Spring; 30. Ball; 31. Clamping slot; 32. Coating structure. DETAILED DESCRIPTION

[0028] See also Figures 1-6The utility model provides a technical solution for an automatic screw locking machine: an automatic screw locking machine, comprising a workbench 1, a frame 2 being mounted on the workbench 1, a Y-axis moving part 3 being mounted on the workbench 1, the Y-axis moving part 3 being composed of a box body, an electric push rod and a moving block, the box body being embedded in the middle groove on the workbench 1, and a through groove being provided on the box body 1, the electric push rod being mounted on the box body, and the output end passing through the hollow on the box body, the moving block being mounted on the output end of the electric push rod, the moving block extending outside the through groove on the box body, the electric push rod being connected to the external control cabinet through wires, a workpiece fixture 4 being mounted on the Y-axis moving part 3, the workpiece fixture 4 being composed of a square plate, two L-shaped blocks with threaded holes and two bolts, the square plate being mounted on the moving block, and the two L-shaped blocks with threaded holes being symmetrically mounted on the top of the square plate On both sides of the end, the bolts are respectively screwed into the threaded holes on the L-shaped block with threaded holes (the workpiece clamp can also be an electric clamp, which is not shown in the figure). An X-axis moving part 5 is installed on the frame 2. The X-axis moving part 5 consists of an electric push rod and an L-shaped box. The electric push rod is installed on the frame 2. The L-shaped box matches the top surface of the frame 2 and is fixedly connected to the output end of the electric push rod. The electric push rod is connected to the external control cabinet through a connecting line. A Z-axis moving part 6 is installed on the X-axis moving part 5. The Z-axis moving part 6 consists of an electric push rod and a motor. The electric push rod is installed on the L-shaped box. The motor is installed on the output end of the electric push rod. The electric push rod and the motor are respectively connected to the external control cabinet through connecting lines. A screw head 7 is installed on the Z-axis moving part 6, and the screw head 7 is installed on the output shaft of the motor.

[0029] A feeding plate 8 is installed in the square opening on the frame 2. A conveying trough 9 is provided on the feeding plate 8. The width of the conveying trough 9 is larger than the diameter of the screw by 1-2 mm, but smaller than the head of the screw. An ear plate 10 is installed on the feeding plate 8. A U-shaped groove 11 is provided on the ear plate 10. The U-shaped groove 11 and the conveying trough 9 are on the same horizontal plane. A feeding device 12 is provided on the outside of the feeding plate 8. The feeding device 12 is an automatic feeding vibration plate in the prior art. The oscillation plate is used to arrange the scattered screws in a row, remove defective screws, and feed the screws into the conveying trough 9 on the feeding plate 8 one by one.

[0030] The frame 2 is provided with a material discharge structure 13, which includes an L-shaped plate 14, a servo motor 15, a first transverse plate 16, a second transverse plate 17, a first threaded hole 18, a second threaded hole 19 and a threaded rod 20;

[0031] The L-shaped plate 14 is mounted on the frame 2, and the servo motor 15 is mounted on the L-shaped plate 14. A battery and a remote control switch are installed on the servo motor 15. The three are connected in series and controlled by an external remote control. The first transverse plate 16 passes through the opening on one side of the frame 2, and the second transverse plate 17 passes through the opening on the other side of the frame 2. The opening on the frame 2 has a range of movement of the first transverse plate 16 and the second transverse plate 17 laterally inward or outward. A first threaded hole 18 is provided on the first transverse plate 16, and a second threaded hole 19 is provided on the second transverse plate 17. A threaded rod 20 is mounted on the output shaft of the servo motor 15, and the threaded rod 20 is sleeved in the first threaded hole 18 and the second threaded hole 19. The intermediate gap when the first transverse plate 16 and the second transverse plate 17 are merged is consistent with the width of the conveying trough 9, and the distance between the first transverse plate 16 and the second transverse plate 17 and the conveying plate 8 is 1-2 cm;

[0032] Mounted on the L-shaped plate 14 is an observation device 21, a conventional monitoring device. By placing a surveillance camera in the target area (the point where the feeder connects to the feed trough on the feeder plate), the captured image data (images of the screws) is transmitted to a backend server for processing. An image recognition algorithm on the server automatically analyzes the image data and triggers an alarm if an anomaly, such as a missing screw, is detected. This technology allows the monitoring system to monitor the target area in real time and automatically trigger an alarm if an anomaly is detected, enabling rapid response and resolution to security incidents.

[0033] Specifically, when a surveillance camera captures the movement of an object (a screw), the image data is transmitted to a server for processing. An image recognition algorithm on the server analyzes this data and triggers an alarm if it detects an anomaly (such as a missing screw). This technology not only improves security monitoring efficiency but also enables immediate detection of emergencies.

[0034] The screw head 7 is composed of a connecting shaft 23 and a flower knife 24. The connecting shaft 23 is installed on the Z-axis moving part 6. The connecting shaft 23 is fixedly connected to the output shaft of the motor. The flower knife 24 is installed on the connecting shaft 23. A spline groove 25 is opened on the connecting shaft 23. A spline shaft 26 is installed on the flower knife 24. The spline shaft 26 is clamped in the spline groove 25. A clamping structure 27 is installed between the spline groove 25 and the spline shaft 26. The number of the clamping structures 27 is not less than four. The clamping structures 27 are equidistantly distributed in an annular manner between the spline groove 25 and the spline shaft 26. The clamping structure 27 includes a groove 28, a spring 29, a ball 30 and a clamping groove 31.

[0035] Groove 28 is defined within spline groove 25, spring 29 is mounted within groove 28, ball 30 is mounted on spring 29, and slot 31 is defined within spline shaft 26, into which ball 30 is engaged. Hanako bit 24 is externally coated with a coating structure 32. The coating material (coating structure 32) on the surface of the screwdriver (Hanako bit 24) is primarily a chemical nickel coating. This coating is typically 10 microns thick. After quenching, tempering, and carburizing, the surface is coated with a 10-micron chemical nickel coating to ensure the mechanical properties and durability of the bit. This coating not only enhances the screwdriver's rust resistance but also improves its precise engagement with screws, making the screwdriver more durable and efficient during use. The bit of Hanako bit 24 is typically magnetized, making it magnetic and capable of attracting screws. This magnetization process can be achieved by rubbing the top of the screwdriver against a magnet in the forward direction multiple times.

[0036] A vertical block 22 is installed at the end of the first horizontal plate 16, and a vertical block 22 is installed at the end of the second horizontal plate 17. The vertical blocks 22 on the first horizontal plate 16 and the second horizontal plate 17 are respectively placed on the inner side of the frame 2 (if the first horizontal plate and the second horizontal plate do not move parallel, an external cylinder can be connected between the frame and the vertical blocks on the first horizontal plate. Similarly, an external cylinder can be connected between the frame and the vertical blocks on the second horizontal plate, and the moving direction is consistent with the moving direction of the first horizontal plate and the second horizontal plate, which is not drawn in the figure).

[0037] The ear plate 10 is arranged parallel to the workbench 1, and the inclination angle of the feed plate 8 and the workbench 1 is between 10-15 degrees, which facilitates the screws to slide into the U-shaped groove 11 on the ear plate 10 through the inclined surface of the conveying groove 9 on the feed plate 8.

[0038] When using the automatic screw locking machine, first manually arrange screws equidistantly between the first cross plate 16 and the second cross plate 17 as a backup, so that the workpiece to be assembled is installed on the workpiece clamp 4, and the spline shaft 26 on the flower knife 24 is inserted into the spline groove 25 on the connecting shaft 23. At this time, the spring 29 in the groove 28 gives the ball 30 an inward force, so that the ball 30 is inserted into the slot 31, so that the flower knife 24 is installed on the connecting shaft 23. When a slotted screw needs to be assembled, the flower knife 24 can be quickly disassembled and the slotted screw can be assembled for use, and the Y-axis moving part 3 moves the workpiece to the position below the flower knife 24. At this time, the feeding device 12 feeds the screws one by one into the conveying groove 9 on the feeding plate 8, and the screws slide into the U-shaped groove 11 on the ear plate 10 through the inclined surface of the conveying groove 9 on the feeding plate 8. At this time, the X-axis moving part 5 moves the flower knife 24 above the knife ear plate 10, and the Z-axis moving part 6 moves the flower knife 24 downward, accurately sucking the screw and assembling the screw to the workpiece. If the observation device 21 detects that the screw has disappeared, an alarm will be sounded to alert the staff in the control room. The staff will quickly start the remote control. At this time, the output shaft of the servo motor 15 drives the threaded rod 20 to rotate in the forward direction, so that the threaded rod 20 rotates along the first threaded hole 18 on the first transverse plate 16 and the second threaded hole 19 on the second transverse plate 17, so that the first transverse plate 16 and the second transverse plate 17 move outward together, so that the screws that were previously used as spares are installed in the conveying groove 9 on the feed plate 8. The screws can be quickly replenished and the assembly work can be carried out, avoiding the staff arriving at the site and increasing the maintenance time, causing the screw machine to run idle.

Claims

1. An automatic screw locking machine, comprising a workbench (1), characterized in that: The workbench (1) is provided with a frame (2), the workbench (1) is provided with a Y-axis moving part (3), the Y-axis moving part (3) is provided with a workpiece fixture (4), the frame (2) is provided with an X-axis moving part (5), the X-axis moving part (5) is provided with a Z-axis moving part (6), and the Z-axis moving part (6) is provided with a screw head (7); A feeding plate (8) is installed in the square opening on the frame (2), a conveying trough (9) is provided on the feeding plate (8), an ear plate (10) is installed on the feeding plate (8), a U-shaped groove (11) is provided on the ear plate (10), the U-shaped groove (11) and the conveying trough (9) are on the same horizontal plane, and a feeding device (12) is provided on the outer side of the feeding plate (8); A material discharge structure (13) is installed on the frame (2), and the material discharge structure (13) includes an L-shaped plate (14), a servo motor (15), a first transverse plate (16), a second transverse plate (17), a first threaded hole (18), a second threaded hole (19) and a threaded rod (20); The L-shaped plate (14) is mounted on the frame (2), the servo motor (15) is mounted on the L-shaped plate (14), the first transverse plate (16) passes through an opening on one side of the frame (2), the second transverse plate (17) passes through an opening on the other side of the frame (2), the first threaded hole (18) is opened on the first transverse plate (16), the second threaded hole (19) is opened on the second transverse plate (17), the threaded rod (20) is mounted on the output shaft of the servo motor (15), and the threaded rod (20) is sleeved in the first threaded hole (18) and the second threaded hole (19); An observation device (21) is mounted on the L-shaped plate (14).

2. The automatic screw locking machine according to claim 1, characterized in that: The screw head (7) is composed of a connecting shaft (23) and a flower knife (24), wherein the connecting shaft (23) is mounted on the Z-axis moving part (6), and the flower knife (24) is mounted on the connecting shaft (23).

3. The automatic screw locking machine according to claim 2, characterized in that: A spline groove (25) is provided on the connecting shaft (23), a spline shaft (26) is installed on the flower knife (24), and the spline shaft (26) is clamped in the spline groove (25).

4. The automatic screw locking machine according to claim 3, characterized in that: A clamping structure (27) is installed between the spline groove (25) and the spline shaft (26), the number of the clamping structures (27) is not less than four, and the clamping structures (27) are distributed in an annular manner and equidistantly between the spline groove (25) and the spline shaft (26), and the clamping structure (27) includes a groove (28), a spring (29), a ball (30) and a clamping groove (31); The groove (28) is formed in the spline groove (25), the spring (29) is mounted in the groove (28), the ball (30) is mounted on the spring (29), the clamping groove (31) is formed on the spline shaft (26), and the ball (30) is clamped in the clamping groove (31).

5. The automatic screw locking machine according to claim 2, characterized in that: The flower knife (24) is externally processed with a coating structure (32).

6. The automatic screw locking machine according to claim 1, characterized in that: A vertical block (22) is installed at the end of the first transverse plate (16), and a vertical block (22) is installed at the end of the second transverse plate (17).

7. The automatic screw locking machine according to claim 1, characterized in that: The ear plate (10) is arranged parallel to the workbench (1).

8. The automatic screw locking machine according to claim 1, characterized in that: The inclination angle between the feeding plate (8) and the workbench (1) is between 10 and 15 degrees.

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