Automatic screw feeding and automatic screwing integrated mechanism

Abstract

The utility model belongs to automatic screw -driving related technical field, and disclose a screw automatic feeding and automatic screw -driving integration mechanism, the screw gun is provided with linear guide rail assembly, the linear guide rail assembly connected with the screw gun top is connected with the sliding block, the left side of sliding block connects pen -shaped cylinder, the screw rod is connected below the sliding block, the sliding block below screw rod and spring, the sliding block can give the thrust of floating spring. Through design the spring between two sliding blocks and connecting rod and adjusting device, can adjust the pre -pressure of screw -driving and the final distance of vacuum suction tube to product, be convenient for the pre -pressure overproof and the problem of batch head and product pressure in screw -driving process. Through the design Y type gun head, can let screw drop into the gun head successfully and guarantee perpendicularity. Through the mechanism realizes automatic screw -driving mechanism, can let screw gun be more stable in screw -driving process.

Description

Technical Field

[0001] This utility model belongs to the technical field of automatic screw driving, and specifically designs an integrated mechanism for automatic screw feeding and automatic screw driving. Background Technology

[0002] Automatic screw feeding uses pneumatic technology to automatically deliver screws to the screw-driving head via a screw-feeding tube, ensuring precise positioning before installation. Automatic screw-driving mechanisms are widely used, primarily replacing manual labor in the machinery manufacturing industry for high-volume, high-quality tasks, such as automobile manufacturing, shipbuilding, and the production of certain household appliances (televisions, refrigerators, washing machines). They are particularly suitable for flexible application in automated production lines in industries such as chemicals.

[0003] Existing automatic screw feeding and screw driving devices have the following problems: screw feeding and screw driving still require manual feeding, or manual positioning is still required after automatic feeding. This increases labor costs, affects the automation and uniformity of the entire production line, and thus affects production efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide an integrated automatic screw feeding and automatic screw driving mechanism to solve the problems mentioned in the background art, such as the imperfect screw feeding function and the imperfect screw driving function of the traditional screw feeding function, which affect the production efficiency of the production line.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an integrated mechanism for automatic screw feeding and automatic screw driving, comprising a screw gun, an automatic feeding gun head, a screw driving cylinder, a vacuum suction tube lowering cylinder, a second clamp and a first clamp opening cylinder, and a vacuum generator, wherein the vacuum generator is connected to the vacuum suction tube for picking up screws.

[0006] Preferably, the integrated mechanism for automatic screw feeding and automatic screw driving includes a gun head, two grippers, one gripper, a rotating shaft, a sleeve shaft, an adjusting guide block, a sliding plate, and a screw feeding tube. The gun head is connected to the sleeve shaft and provides power. The adjusting guide block provides guidance. The rotating shaft provides rotational support for two grippers and one gripper. The sliding plate provides a rotation angle for two grippers and one gripper. The sleeve shaft is connected to a machined part, and the machined part is connected to the screw feeding tube. A ring sensor is installed in the middle of the screw feeding tube to detect whether the screw has passed through. Two grippers and one gripper are flush after clamping. Rotation allows two grippers and one gripper to rotate. The sliding plate and adjusting guide block are located behind the gun head. The adjusting guide block provides guidance, and the sliding plate provides the maximum and minimum opening angles. A cylinder provides power to drive two grippers and one gripper to open and close. The sleeve shaft, the machined part, and the M3.5 screw feeding tube are mounted on the gun head. The ring sensor is hung on the M3.5 screw feeding tube. When the screw is fed to jaws two and one through the M3.5 screw feed tube, jaws two and one position the screw.

[0007] Preferably, the circular channel formed by the combination of the semicircular channels of gripper two and gripper one is a stepped hole. The diameter of the upper channel is slightly larger than the nut of the workpiece screw, the conical hole in the middle positions the workpiece screw nut, and the diameter of the lower channel is slightly larger than the diameter of the workpiece screw shank. This facilitates the smooth passage and positioning of the workpiece screw.

[0008] Preferably, the screw feeding tube has a ring sensor, model number: IFMI7R205. The ring sensor can detect whether a screw has passed through the sensor. Preferably, the mechanism is equipped with a pressure sensor, model: Festo8114751SPAN-B-B2R-G18M-PN-L1. The pressure sensor can detect whether a screw has been successfully picked up.

[0009] Preferably, when the cylinder retracts, the upper surfaces of gripper two and gripper one are similar in size to the hole, and the gap between them is 0.5mm, so that when gripper two and gripper one are working, the screw can fall in and be positioned.

[0010] Compared with existing screw feeding and screw driving technologies, this utility model provides an integrated mechanism for automatic screw feeding and automatic screw driving, which has the following advantages: ① The automatic feeding assembly of this utility model is equipped with a Y-type connector and an automatic correction device for gripper two and gripper one. The channels in gripper two and gripper one of the gripper mechanism can initially position the axial position of the workpiece screw. The Y-type gun head can ensure that the screw falls smoothly into gripper two and gripper one, reducing intermediate nodes, reducing cycle time, and reducing costs.

[0011] ② This utility model screw gun has sensors to monitor angle, speed, torque, etc., and can also observe curves to determine the type of failure and analyze the reasons for screw failure; at the same time, the screw gun head has a spring extension and retraction length of 0-25MM, which can also ensure a screwing length of 0-25MM; compared with the previous technology, it has higher compatibility. Attached Figure Description

[0012] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Fig. 1 This is a schematic diagram of the feeding part of an integrated automatic screw feeding and automatic screw driving mechanism proposed in this utility model. Fig. 2 This is a front view structural diagram of an integrated automatic screw feeding and automatic screw driving mechanism proposed in this utility model; Fig. 3 This is a schematic diagram of the feeding state of the gun head part in the integrated automatic screw feeding and automatic screw driving mechanism proposed in this utility model, showing the front and left views of the structure. In the picture: a. Screwdriver; b. Automatic feeding head; c. Screw-driving cylinder; d. Vacuum suction tube lowering cylinder; e. Gripper opening cylinder; 1. Base plate; 2. Two-lobed nozzle connecting plate; 3. Connecting plate; 4. Slider connecting plate; 5. Screwdriver vacuum tube; 6. Screwdriver mounting block; 7. Cylinder mounting plate; 8. Slider connecting plate two; 9. Connecting shaft; 10. Telescopic rod; 11. Vacuum suction tube connecting plate; 12. Screwdriver tip; 13. Mounting support; 14. Height adjustment block; 15. Connecting plate two; 16. Vacuum generator connecting plate; 17. Linear slide rail; 18. Induction check valve; 19. Exhaust throttle valve; 20. Hydraulic buffer; 21. Variable diameter quick-connect fitting; 22. Three-way air pipe fitting; 23. Pen-shaped cylinder; 24. Floating connector 25. Head; 26. Cylinder; 27. Pressure reducing valve; 28. Air pipe connector; 29. ​​Pressure sensor bracket; 30. Pressure sensor; 31. Air pipe connector two; 32. Vacuum generator; 33. Silencer; 34. Air pipe connector three; 35. Vacuum filter; 36. Fixing ring; 37. Oil-free bushing; 38. Adjusting screw assembly; 39. Adjusting screw assembly two; 40. Positioning pin; 41. Positioning pin two; 42. Spring; 43. Two-lobed nozzle assembly; 44. Gun head; 45. Sleeve shaft; 46. Rotating shaft; 47. Gripper one; 48. Gripper two; 49. Machined part; 50. Slide plate; 51. Guide shaft; 52. Adjusting guide block; 53. Ring sensor; 54. Sensor; 55. Cylinder two; 56. Nail feeding tube. Detailed Implementation

[0013] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0014] Please see Figs. 1-3 This utility model proposes an integrated mechanism for automatic screw feeding and automatic screw driving, including a screw gun a, an automatic feeding gun head b, a screw driving cylinder c, a vacuum suction tube lowering cylinder d, a gripper opening cylinder e, and a vacuum generator 31. The vacuum generator 31 is connected to the vacuum suction tube and is used to pick up screws.

[0015] It also includes a base plate 1, a two-part nozzle connecting plate 2, a connecting plate 3, a height adjustment block 14, a mounting bracket 13, a vacuum generator connecting plate 16, a slider connecting plate 4, a second slider connecting plate 8, a screw gun mounting block 6, a cylinder mounting plate 7, and a vacuum suction tube connecting plate 11. A linear guide rail is mounted on the base plate 1. The two-part nozzle connecting plate 2 is mounted on the base plate 1. The connecting plate 3 and the height adjustment block 14 are mounted on the two-part nozzle connecting plate 2. The mounting bracket 13 and the vacuum generator connecting plate 16 are mounted on the base plate 1. The slider connecting plate 4 and the second slider connecting plate 8 are mounted on the linear guide rail. The screw gun mounting block 6 and the cylinder mounting plate 7 are mounted on the slider connecting plate 4. The vacuum suction tube connecting plate 11 is mounted on the second slider connecting plate 8. A connecting rod and a spring 41 are located between the slider connecting plate 4 and the second slider connecting plate 8 to adjust the preload of the screw and the distance between the screwdriver bit and the screw gun a.

[0016] The cylinder mounting plate 7 is connected to the pen-shaped cylinder 23. The pen-shaped cylinder 23 is connected to the floating joint 24 and the connecting shaft 9. The connecting shaft 9 is connected to another floating joint 24 and a compact cylinder. The vacuum generator connecting plate 16 is connected to the vacuum generator 31 and connected to the pressure sensor 29 through the air pipe. The pressure sensor 29 is used to detect the gas pressure and feed it back to the PLC. The pressure sensor 29 is connected to the vacuum filter 34 through the air pipe.

[0017] It also includes a gun head 43, a second gripper 47, a first gripper 46, a rotating shaft 45, a sleeve shaft 44, an adjusting guide block 51, a sliding plate 49, and a screw feeding tube 56. The gun head 43 is connected to the sleeve shaft 44 and provides power. The adjusting guide block 51 provides guidance. The rotating shaft 45 is used to provide rotational support for the second gripper 47 and the first gripper 46. The sliding plate 49 is used to provide a rotation angle for the second gripper 47 and the first gripper 46. The sleeve shaft 44 is connected to a machined part 48. The machined part 48 is connected to the screw feeding tube 56. A ring sensor 52 is provided in the middle of the screw feeding tube 56. The ring sensor 52 is used to detect whether the screw has passed through.

[0018] The pen-shaped cylinder 23 is model MA25x150SCA+DMSG-P-3, the compact cylinder is model ACE32X70SB+DMSE-P-2, the cylinder 25 is MUR12X10SB, the ring sensor 52 is model IFMI7R205, the vacuum generator 31 is model Festo19294VAD-3-8, the pressure sensor 29 is model Festo8114751SPAN-B-B2R-G18M-PN-L1, and the vacuum filter 34 is model SMCZFC75-B.

[0019] The working principle and usage process of this utility model are as follows: After installation, this utility model, an integrated mechanism for automatic screw feeding and automatic screw driving, consists of a screw gun assembly A and a gun head assembly 43. When the compact cylinder descends, the vacuum suction tube descends to pick up the screw. Then, the cylinder 25 on the gun head 43 retracts, and the second clamp 47 and the first clamp 46 open. When the pen-shaped cylinder 23 descends to the first stage, the vacuum suction tube delivers the screw to the product. When the pen-shaped cylinder 23 descends to the second stage, the screwdriver bit presses down on the screw. The spring 41 between the two sliders provides pre-pressure. The output head on the screw gun A has a pressing length greater than the screw insertion length, thus driving the screw. At the same time, the cylinder 25 descends, the vacuum suction tube descends, and the screwdriver bit descends. When the vacuum suction tube descends to 1-2 mm away from the product, it stops descending, and the screwdriver bit continues to descend, screwing the screw into the product.

[0020] Although embodiments of the present 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 present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An integrated mechanism for automatic screw feeding and automatic screw driving, characterized in that, The device includes a screwdriver (a), an automatic feeding head (b), a screw-driving cylinder (c), a vacuum suction tube lowering cylinder (d), a gripper opening cylinder (e), and a vacuum generator (31), wherein the vacuum generator (31) is connected to a vacuum suction tube for picking up screws; It also includes a gun head (43), a second gripper (47), a first gripper (46), a rotating shaft (45), a sleeve shaft (44), an adjusting guide block (51), a sliding plate (49), and a nail feeding tube (56). The gun head (43) is connected to the sleeve shaft (44) and provides power. The adjusting guide block (51) provides guidance. The rotating shaft (45) is used to provide rotational support to the second gripper (47) and the first gripper (46). The sliding plate (49) is used to provide rotation angle for the second gripper (47) and the first gripper (46). The sleeve shaft (44) is connected to a machined part (48). The machined part (48) is connected to the nail feeding tube (56). A ring sensor (52) is provided in the middle of the nail feeding tube (56). The ring sensor (52) is used to detect whether the screw has passed through.

2. The integrated automatic screw feeding and automatic screw driving mechanism according to claim 1, characterized in that, It also includes a base plate (1), a two-lobed nozzle connecting plate (2), a connecting plate (3), a height adjustment block (14), a mounting bracket (13), a vacuum generator connecting plate (16), a slider connecting plate (4), a second slider connecting plate (8), a screw gun mounting block (6), a cylinder mounting plate (7), and a vacuum suction tube connecting plate (11). A linear guide rail is mounted on the base plate (1). The two-lobed nozzle connecting plate (2) is mounted on the base plate (1). The connecting plate (3) and the height adjustment block (14) are mounted on the two-lobed nozzle connecting plate (2). The mounting bracket (13) and the vacuum generator connecting plate (16) are mounted on the base plate (1). The slider connecting plate (4) and the second slider connecting plate (8) are mounted on the linear guide rail. The screw gun mounting block (6) and the cylinder mounting plate (7) are mounted on the slider connecting plate (4). The vacuum suction tube connecting plate (11) is mounted on the second slider connecting plate (8). The slider connecting plate (4) and the second slider connecting plate (8) have a connecting rod and a spring (41) for adjusting the preload of screwing and the distance between the screwdriver bit and the screw gun (a).

3. The integrated automatic screw feeding and automatic screw driving mechanism according to claim 2, characterized in that: The cylinder mounting plate (7) is connected to the pen-shaped cylinder (23). The pen-shaped cylinder (23) is connected to the floating joint (24) and the connecting shaft (9) below. The connecting shaft (9) is connected to another floating joint (24) and the compact cylinder. The vacuum generator connecting plate (16) is connected to the vacuum generator (31) and connected to the pressure sensor (29) through the air pipe. The pressure sensor (29) is used to detect the gas pressure and feed it back to the PLC. The pressure sensor (29) is connected to the vacuum filter (34) through the air pipe.

4. The integrated automatic screw feeding and automatic screw driving mechanism according to claim 3, characterized in that, The pen-shaped cylinder (23) is model MA25x150SCA+DMSG-P-3, the compact cylinder is model ACE32X70SB+DMSE-P-2, the cylinder (25) is MUR12X10SB, the ring sensor (52) is model IFM I7R205, the vacuum generator (31) is model Festo 19294 VAD-3-8, the pressure sensor (29) is model Festo 8114751 SPAN-B-B2R-G18M-PN-L1, and the vacuum filter (34) is model SMC ZFC75-B.

Images