Automatic screw machine

Abstract

The utility model discloses an automatic screw machine which comprises a working table, a screw conveying device, a taking and placing assembly, a screw screwing assembly and a screw positioning assembly, and the screw positioning assembly is arranged on the front side of the screw screwing assembly. The screw positioning assembly comprises a positioning plate, a first limiting block, a second limiting block, a cylinder, a positioning shell, a first spring, a first buckle, a second buckle, a connecting plate, a moving plate and a positioning circular ring, a first positioning groove is formed in the top of the positioning plate, the first limiting block is slidably installed in the first positioning groove, and the moving plate is slidably installed at the top of the positioning plate. By means of the screw positioning assembly, a worker can conveniently and rapidly control limiting between the movable plate and the positioning plate and adjust the position of a screw, and therefore the situation that friction force between the movable plate and the positioning plate is large is prevented. Therefore, the situation that friction force between the movable plate and the positioning plate is small and the movable plate is driven by vibration to move is prevented, and the working efficiency of the automatic screw machine is improved.

Description

Technical Field

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

[0002] Most products need to have more or less screws driven into them. Currently, screwing operations on products are mostly done manually or by a single-axis screw driver. When done manually, workers hold an electric screwdriver or an air screw driver and manually put the screws into the screw holes before locking them. Obviously, such operations are cumbersome and inefficient. When a single-axis screw driver is used, the screws are divided slowly, and the electric screw driver or air screw driver needs to be moved repeatedly between multiple screw holes. This also results in low production efficiency for products with more screws, which is not conducive to reducing production costs.

[0003] For example, the patent application with application number CN201310703820.2 includes: a chassis, a screw material distribution mechanism, a screw locking mechanism and a control system, wherein the upper part of the chassis is provided with a placement fixture; the screw material distribution mechanism includes a hopper and a material distributor; the screw locking mechanism includes a Z-axis support frame, the upper part of the Z-axis support frame is fixed with a cylinder fixing plate, the cylinder fixing plate is fixed with a second cylinder with a telescopic shaft running vertically, and at the same time, an upper mounting plate is fixed on the telescopic shaft of the second cylinder, and an electric screwdriver corresponding to the number of the screws and with the rotating shaft facing downward is fixed on the upper mounting plate, and the rotating shaft of the electric screwdriver is connected to a connecting rod through a universal joint, and the lower end of the connecting rod is connected with a screw clamp and a screwdriver head, and the screw clamp is provided with a nail feeding tube. The advantages of the utility model are: simple operation and high efficiency.

[0004] When the automatic screw driving machine mentioned above and in the prior art adjusts the position of the screw, the movable adjustment plate adjusts the position of the connecting rod through the shaft sleeve, and the connecting rod adjusts the position of the screw through the screw clamp. If the friction between the adjustment plate and the lower mounting plate is large, it is inconvenient for the staff to adjust it. If the friction between the adjustment plate and the lower mounting plate is small, the vibration generated during the operation of the automatic screw driving machine will drive the adjustment plate to move, thereby reducing the working effect of the automatic screw driving machine. Therefore, it is urgent to design an automatic screw driving machine to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an automatic screw machine to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] It includes a workbench, a screw conveying device, a pick-and-place assembly, a screw tightening assembly and a screw positioning assembly, wherein the screw positioning assembly is arranged at the front side of the screw tightening assembly, and the screw positioning assembly includes a positioning plate, a first limit block, a second limit block, a cylinder, a positioning shell, a first spring, a first buckle, a second buckle, a connecting plate, a movable plate and a positioning ring, a first positioning groove is opened on the top of the positioning plate, the first limit block is slidably installed in the first positioning groove, the movable plate is slidably installed on the top of the positioning plate, a second positioning groove is opened on the top of the movable plate, and the positioning shell is slidably installed in the second positioning groove.

[0008] The screw positioning assembly provided can facilitate the staff to quickly control the limit between the moving plate and the positioning plate and adjust the screw position, thereby preventing the situation where the friction between the moving plate and the positioning plate is large, and preventing the situation where the friction between the moving plate and the positioning plate is small and the plate is moved by vibration, thereby increasing the working efficiency of the automatic screw machine.

[0009] The screw-tightening assembly provided can drive the screw to be tightened after the position of the screw is adjusted, thereby increasing the flexibility of the automatic screw machine.

[0010] The provided pick-and-place assembly can remove the product after screwing from the automatic screw machine, thereby increasing the working efficiency of the automatic screw machine.

[0011] The cylinder is fixedly mounted on the top of the first limiting block, the cylinder is rotatably connected to the positioning shell, the second limiting block is slidably mounted in the positioning shell, and a circular groove is provided on the top of the second limiting block.

[0012] The first spring is fixedly installed between the second limiting block and the positioning shell, the first buckle is fixedly installed on the top of the second limiting block, a square groove is opened on the front side of the positioning shell, and the second buckle is slidably installed in the square groove.

[0013] The connecting plate is fixedly mounted on the front side of the second buckle, the connecting plate is slidably connected to another second buckle, the positioning ring is fixedly mounted on one side of the movable plate, the screw conveying device is fixedly mounted on one side of the workbench, and a placing turntable is rotatably mounted on the top of the workbench.

[0014] The screw tightening assembly includes a first support frame, a first hydraulic cylinder, a first L-shaped plate, a second hydraulic cylinder, a second L-shaped plate, a screwing motor, a first universal joint, a square ring plate, a square plate, a second spring, a second universal joint and a magnetic screwing device. The first support frame is fixedly installed on the top of the workbench, the first hydraulic cylinder is fixedly installed on one side of the first support frame, the first L-shaped plate is slidably installed on the front side of the first support frame, and the first L-shaped plate is connected to the output end of the first hydraulic cylinder.

[0015] The second hydraulic cylinder is fixedly mounted on the top of the first L-shaped plate, the second L-shaped plate is slidably mounted on the front side of the first L-shaped plate, the second L-shaped plate is connected to the output end of the second hydraulic cylinder, and the screwing motor is fixedly mounted on the top of the second L-shaped plate.

[0016] The first universal joint is rotatably mounted on the bottom of the second L-shaped plate, the first universal joint is connected to the output end of the screwing motor, the square ring plate is fixedly mounted on the bottom of the first universal joint, the square plate is slidably mounted on the inner surface of the square ring plate, the second universal joint is fixedly mounted on the bottom of the square plate, the second spring is fixedly mounted between the second universal joint and the square ring plate, the magnetic screwing device is rotatably mounted on the inner surface of the positioning ring, and the magnetic screwing device is fixedly connected to the second universal joint.

[0017] The pick-and-place assembly includes a second support frame, a third hydraulic cylinder, a third support frame, a fourth hydraulic cylinder, a U-shaped plate, a clamping plate, a bidirectional threaded rod and a clamping motor. The second support frame is fixedly installed on the top of the workbench, the third hydraulic cylinder is fixedly installed on one side of the second support frame, and the third support frame is slidably installed on the front side of the second support frame.

[0018] The third support frame is connected to the output end of the third hydraulic cylinder, the fourth hydraulic cylinder is fixedly installed on the top of the third support frame, the U-shaped plate is slidably installed on the front side of the third support frame, and the U-shaped plate is connected to the output end of the fourth hydraulic cylinder.

[0019] The bidirectional threaded rod is rotatably installed in the U-shaped plate, the clamping plate is threadedly installed on the outer surface of the bidirectional threaded rod, the clamping motor is fixedly installed on one side of the U-shaped plate, and the bidirectional threaded rod is connected to the output end of the clamping motor.

[0020] In the above technical solution, the utility model provides an automatic screw machine, which has the following beneficial effects:

[0021] 1. The screw positioning assembly can facilitate the staff to quickly control the limit between the moving plate and the positioning plate and adjust the screw position, thereby preventing the situation where the friction between the moving plate and the positioning plate is large, thereby preventing the situation where the friction between the moving plate and the positioning plate is small and the plate is driven to move by vibration, thereby increasing the working efficiency of the automatic screw machine.

[0022] 2. The screw tightening assembly provided can drive the screw to be tightened after the position of the screw is adjusted, thereby increasing the flexibility of the automatic screw machine.

[0023] 3. The pick-and-place assembly can be used to remove the finished product from the automatic screw machine, thereby increasing the working efficiency of the automatic screw machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0025] Figure 1 The present invention is a schematic structural diagram of an automatic screw machine provided in accordance with an embodiment of the present invention.

[0026] Figure 2 The utility model is a schematic diagram of the rear structure of an automatic screw machine provided by an embodiment of the automatic screw machine.

[0027] Figure 3 The present invention is a schematic diagram of the structure of a screw-tightening assembly provided by an automatic screw machine embodiment of the utility model.

[0028] Figure 4 The present invention is a schematic diagram of the structure of a screw positioning assembly provided in an automatic screw machine embodiment of the utility model.

[0029] Figure 5 The present invention is a schematic diagram of the structure of a pick-and-place assembly provided in an embodiment of an automatic screw machine.

[0030] Description of reference numerals:

[0031] 1. Workbench; 2. Screw conveying device; 3. Pick-up and place assembly; 4. Screw tightening assembly; 5. Screw positioning assembly; 6. Positioning plate; 7. First limit block; 8. Second limit block; 9. Cylinder; 10. Positioning shell; 11. First spring; 12. First buckle; 13. Second buckle; 14. Connecting plate; 15. Moving plate; 16. Positioning ring; 17. First positioning groove; 18. Second positioning groove; 19. Round groove; 20. Square groove; 21. First support frame; 22. A hydraulic cylinder; 23. A first L-shaped plate; 24. A second hydraulic cylinder; 25. A second L-shaped plate; 26. A screwing motor; 27. A first universal joint; 28. A square ring plate; 29. ​​A square plate; 30. A second spring; 31. A second universal joint; 32. A magnetic screwing device; 33. A second support frame; 34. A third hydraulic cylinder; 35. A third support frame; 36. A fourth hydraulic cylinder; 37. A U-shaped plate; 38. A clamping plate; 39. A bidirectional threaded rod; 40. A clamping motor; 41. A turntable is placed. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0033] like Figure 1-5 As shown, an automatic screw machine is provided in an embodiment of the utility model.

[0034] The utility model comprises a workbench 1, a screw conveying device 2, a pick-and-place assembly 3, a screw screwing assembly 4 and a screw positioning assembly 5. The screw positioning assembly 5 is arranged at the front side of the screw screwing assembly 4. The screw positioning assembly 5 comprises a positioning plate 6, a first limiting block 7, a second limiting block 8, a cylinder 9, a positioning shell 10, a first spring 11, a first buckle 12, a second buckle 13, a connecting plate 14, a movable plate 15 and a positioning ring 16. A first positioning groove 17 is provided on the top of the positioning plate 6. The first limiting block 7 is slidably installed in the first positioning groove 17. The movable plate 15 is slidably installed on the top of the positioning plate 6. A second positioning groove 18 is provided on the top of the movable plate 15. The positioning shell 10 is slidably installed in the second positioning groove 18.

[0035] The screw positioning assembly 5 provided can facilitate the staff to quickly control the limit between the movable plate 15 and the positioning plate 6 and adjust the screw position, thereby preventing the situation where the friction between the movable plate 15 and the positioning plate 6 is large, thereby preventing the situation where the friction between the movable plate 15 and the positioning plate 6 is small and the movable plate 15 is moved by vibration, thereby increasing the working efficiency of the automatic screw machine.

[0036] The screw-tightening assembly 4 can drive the screw to be tightened after the position of the screw is adjusted, thereby increasing the flexibility of the automatic screw machine.

[0037] The pick-and-place assembly 3 can be used to remove the screwed product from the automatic screw machine, thereby increasing the working efficiency of the automatic screw machine.

[0038] Reference Figure 4 In this embodiment, the cylinder 9 is fixedly installed on the top of the first limit block 7, the cylinder 9 is rotatably connected to the positioning shell 10, the second limit block 8 is slidably installed in the positioning shell 10, and a circular groove 19 is opened on the top of the second limit block 8.

[0039] The first spring 11 is fixedly installed between the second limit block 8 and the positioning shell 10 , the first buckle 12 is fixedly installed on the top of the second limit block 8 , a square groove 20 is opened on the front side of the positioning shell 10 , and the second buckle 13 is slidably installed in the square groove 20 .

[0040] The connecting plate 14 is fixedly mounted on the front side of the second buckle 13, and the connecting plate 14 is slidably connected to another second buckle 13. The positioning ring 16 is fixedly mounted on one side of the moving plate 15. The screw conveying device 2 is fixedly mounted on one side of the workbench 1, and a placing turntable 41 is rotatably mounted on the top of the workbench 1.

[0041] Reference Figure 3 The screw tightening assembly 4 of this embodiment includes a first support frame 21, a first hydraulic cylinder 22, a first L-shaped plate 23, a second hydraulic cylinder 24, a second L-shaped plate 25, a screwing motor 26, a first universal joint 27, a square ring plate 28, a square plate 29, a second spring 30, a second universal joint 31 and a magnetic screwing device 32. The first support frame 21 is fixedly installed on the top of the workbench 1, the first hydraulic cylinder 22 is fixedly installed on one side of the first support frame 21, the first L-shaped plate 23 is slidably installed on the front side of the first support frame 21, and the first L-shaped plate 23 is connected to the output end of the first hydraulic cylinder 22.

[0042] The second hydraulic cylinder 24 is fixedly mounted on the top of the first L-shaped plate 23 , the second L-shaped plate 25 is slidably mounted on the front side of the first L-shaped plate 23 , the second L-shaped plate 25 is connected to the output end of the second hydraulic cylinder 24 , and the screwing motor 26 is fixedly mounted on the top of the second L-shaped plate 25 .

[0043] The first universal joint 27 is rotatably mounted on the bottom of the second L-shaped plate 25, the first universal joint 27 is connected to the output end of the screwing motor 26, the square ring plate 28 is fixedly mounted on the bottom of the first universal joint 27, the square plate 29 is slidably mounted on the inner surface of the square ring plate 28, the second universal joint 31 is fixedly mounted on the bottom of the square plate 29, the second spring 30 is fixedly mounted between the second universal joint 31 and the square ring plate 28, the magnetic screwing device 32 is rotatably mounted on the inner surface of the positioning ring 16, and the magnetic screwing device 32 is fixedly connected to the second universal joint 31.

[0044] Reference Figure 5The pick-and-place assembly 3 of this embodiment includes a second support frame 33, a third hydraulic cylinder 34, a third support frame 35, a fourth hydraulic cylinder 36, a U-shaped plate 37, a clamping plate 38, a bidirectional threaded rod 39 and a clamping motor 40. The second support frame 33 is fixedly installed on the top of the workbench 1, the third hydraulic cylinder 34 is fixedly installed on one side of the second support frame 33, and the third support frame 35 is slidably installed on the front side of the second support frame 33.

[0045] The third support frame 35 is connected to the output end of the third hydraulic cylinder 34 , the fourth hydraulic cylinder 36 is fixedly installed on the top of the third support frame 35 , the U-shaped plate 37 is slidably installed on the front side of the third support frame 35 , and the U-shaped plate 37 is connected to the output end of the fourth hydraulic cylinder 36 .

[0046] The bidirectional threaded rod 39 is rotatably installed in the U-shaped plate 37, the clamping plate 38 is threadedly installed on the outer surface of the bidirectional threaded rod 39, the clamping motor 40 is fixedly installed on one side of the U-shaped plate 37, and the bidirectional threaded rod 39 is connected to the output end of the clamping motor 40.

[0047] Working principle: first, place the product on the placement turntable 41, and according to actual needs, squeeze the connecting plate 14 to squeeze the second buckle 13, and the connecting plate 14 drives the second limit block 8 to shrink through the second buckle 13 and the first buckle 12, and the second limit block 8 squeezes the first spring 11, and the second limit block 8 and the first limit block 7 release their limit on the movable plate 15, and the movable plate 15 drives the magnetic screwing device 32 to move through the positioning ring 16. After the adjustment of the magnetic screwing device 32 is completed, refer to the above steps, loosen the connecting plate 14, the first spring 11 squeezes the second limit block 8, and the first spring 11 stretches the first limit block 7 through the positioning shell 10 and the cylinder 9. The first limit block 7 and the second limit block 8 squeeze each other, so that they squeeze the positioning plate 6 and the movable plate 15, so that the positioning plate 6 limits and fixes the movable plate 15, and start the placement turntable 41 to drive the product to rotate the screw to screw At component 4, start the first hydraulic cylinder 22 to drive the first L-shaped plate 23 to move, start the second hydraulic cylinder 24 to drive the second L-shaped plate 25 to move up and down, so that the magnetic screwing device 32 absorbs the screws from the screw conveying device 2, refer to the above steps, start the first hydraulic cylinder 22 and the second hydraulic cylinder 24 to drive the magnetic screwing device 32 to reset and move the screws to the product, start the screwing motor 26 to drive the magnetic screwing device 32 to screw through the first universal joint 27, the square ring plate 28, the square plate 29 and the second universal joint 31, after the screw screwing is completed, start the placement turntable 41 to drive the product to rotate to the pick-up and placement component 3, start the fourth hydraulic cylinder 36 to drive the third support frame 35 to drive the U-shaped plate 37 to move, start the clamping motor 40 to drive the clamping plate 38 to move through the bidirectional threaded rod 39 to clamp the product, start the third hydraulic cylinder 34 to drive the third support frame 35 to move, and remove the product from the placement turntable 41.

[0048] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An automatic screw machine, comprising a workbench (1), a screw conveying device (2), a pick-and-place assembly (3), a screw screwing assembly (4) and a screw positioning assembly (5), characterized in that: The screw positioning assembly (5) is arranged at the front side of the screw tightening assembly (4), and the screw positioning assembly (5) comprises a positioning plate (6), a first limiting block (7), a second limiting block (8), a cylinder (9), a positioning shell (10), a first spring (11), a first buckle (12), a second buckle (13), a connecting plate (14), a movable plate (15) and a positioning ring (16); a first positioning groove (17) is provided on the top of the positioning plate (6); the first limiting block (7) is slidably installed in the first positioning groove (17); the movable plate (15) is slidably installed on the top of the positioning plate (6); a second positioning groove (18) is provided on the top of the movable plate (15); and the positioning shell (10) is slidably installed in the second positioning groove (18).

2. An automatic screw machine according to claim 1, characterized in that: The cylinder (9) is fixedly mounted on the top of the first limit block (7), the cylinder (9) is rotatably connected to the positioning shell (10), the second limit block (8) is slidably mounted in the positioning shell (10), and a circular groove (19) is provided on the top of the second limit block (8).

3. The automatic screw machine according to claim 1, characterized in that: The first spring (11) is fixedly mounted between the second limit block (8) and the positioning shell (10), the first buckle (12) is fixedly mounted on the top of the second limit block (8), a square groove (20) is provided on the front side of the positioning shell (10), and the second buckle (13) is slidably mounted in the square groove (20).

4. The automatic screw machine according to claim 1, characterized in that: The connecting plate (14) is fixedly mounted on the front side of the second buckle (13), the connecting plate (14) is slidably connected to another second buckle (13), the positioning ring (16) is fixedly mounted on one side of the movable plate (15), the screw conveying device (2) is fixedly mounted on one side of the workbench (1), and a placing turntable (41) is rotatably mounted on the top of the workbench (1).

5. The automatic screw machine according to claim 1, characterized in that: The screw tightening assembly (4) comprises a first support frame (21), a first hydraulic cylinder (22), a first L-shaped plate (23), a second hydraulic cylinder (24), a second L-shaped plate (25), a screwing motor (26), a first universal joint (27), a square ring plate (28), a square plate (29), a second spring (30), a second universal joint (31) and a magnetic screwing device (32), wherein the first support frame (21) is fixedly mounted on the top of the workbench (1), the first hydraulic cylinder (22) is fixedly mounted on one side of the first support frame (21), the first L-shaped plate (23) is slidably mounted on the front side of the first support frame (21), and the first L-shaped plate (23) is connected to the output end of the first hydraulic cylinder (22).

6. An automatic screw machine according to claim 5, characterized in that: The second hydraulic cylinder (24) is fixedly mounted on the top of the first L-shaped plate (23), the second L-shaped plate (25) is slidably mounted on the front side of the first L-shaped plate (23), the second L-shaped plate (25) is connected to the output end of the second hydraulic cylinder (24), and the screwing motor (26) is fixedly mounted on the top of the second L-shaped plate (25).

7. The automatic screw machine according to claim 5, characterized in that: The first universal joint (27) is rotatably mounted on the bottom of the second L-shaped plate (25), the first universal joint (27) is connected to the output end of the screwing motor (26), the square ring plate (28) is fixedly mounted on the bottom of the first universal joint (27), the square plate (29) is slidably mounted on the inner surface of the square ring plate (28), the second universal joint (31) is fixedly mounted on the bottom of the square plate (29), the second spring (30) is fixedly mounted between the second universal joint (31) and the square ring plate (28), the magnetic screwing device (32) is rotatably mounted on the inner surface of the positioning ring (16), and the magnetic screwing device (32) is fixedly connected to the second universal joint (31).

8. The automatic screw machine according to claim 1, characterized in that: The pick-and-place assembly (3) comprises a second support frame (33), a third hydraulic cylinder (34), a third support frame (35), a fourth hydraulic cylinder (36), a U-shaped plate (37), a clamping plate (38), a bidirectional threaded rod (39) and a clamping motor (40), wherein the second support frame (33) is fixedly mounted on the top of the workbench (1), the third hydraulic cylinder (34) is fixedly mounted on one side of the second support frame (33), and the third support frame (35) is slidably mounted on the front side of the second support frame (33).

9. The automatic screw machine according to claim 8, characterized in that: The third support frame (35) is connected to the output end of the third hydraulic cylinder (34), the fourth hydraulic cylinder (36) is fixedly installed on the top of the third support frame (35), the U-shaped plate (37) is slidably installed on the front side of the third support frame (35), and the U-shaped plate (37) is connected to the output end of the fourth hydraulic cylinder (36).

10. The automatic screw machine according to claim 8, characterized in that: The bidirectional threaded rod (39) is rotatably mounted in the U-shaped plate (37), the clamping plate (38) is threadedly mounted on the outer surface of the bidirectional threaded rod (39), the clamping motor (40) is fixedly mounted on one side of the U-shaped plate (37), and the bidirectional threaded rod (39) is connected to the output end of the clamping motor (40).

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