Screw tightening and transferring mechanism

Abstract

According to the screw tightening and transferring mechanism provided by the utility model, the screw tightening device is driven by the horizontal driving device to move horizontally, and the screw tightening device is driven by the vertical driving device to move vertically, so that screw tightening tools on a plurality of stations are completed; the driving air cylinder can drive the second sliding block to move along the vertical sliding rail so as to drive the screwdriver to move up and down, and therefore it is ensured that the screwdriver screws a screw into a tool of a steering wheel, and the buffer spring can absorb impact force of the driving air cylinder. The situation that the steering wheel is damaged due to impact force in the screw tightening process of the screwdriver is prevented; the displacement detection device can detect the screwing depth of the screw, the screwing degree of the screw is ensured, it is ensured that the screw can be firmly fixed in the steering wheel, and it is ensured that the screw and the steering wheel have enough connection strength; through full-automatic setting, the tooling efficiency and the tooling precision of the steering wheel are greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of automated production of steering wheels, in particular to a screw tightening and transferring mechanism. Background Art

[0002] In the traditional steering wheel production process, parts are basically installed on the steering wheel manually with screws, that is, the screws are manually removed, the screw holes are calibrated by naked eyes, and then manually tightened for installation. Due to the complex structure of the steering wheel, during the manual assembly process, the tooling efficiency is low, the installation position is not accurate, and the labor intensity of the operators is high. The staff is required to perform manual operations continuously, and due to long-term operation, the workers' visual fatigue, so it is easy to make mistakes. This application aims to make automated design and improvements for the processing and assembly of the steering wheel to improve the tooling efficiency and operation accuracy of the steering wheel. Utility Model Content

[0003] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide a screw tightening and transferring mechanism for solving the problems of low tooling efficiency and inaccurate installation position of the steering wheel in the prior art.

[0004] In order to achieve the above purpose and other related purposes, the utility model provides the following technical solutions:

[0005] A screw tightening and transferring mechanism comprises a horizontal driving device, two vertical driving devices arranged on the horizontal driving device and arranged in parallel and symmetrically, both of the vertical driving devices are provided with a screw tightening device, the screw tightening device comprises a mounting plate, a vertical slide rail arranged on the mounting plate, a first slider slidably arranged on the vertical slide rail, a second slider slidably arranged on the vertical slide rail and located below the first slider, a screwdriver is arranged on the second slider, and a driving cylinder is arranged at the lower end of the vertical slide rail for driving the second slider to move along the vertical slide rail.

[0006] To implement the above technical solution, in the present application, the screw tightening device is driven to move horizontally by the horizontal driving device, and the screw tightening device is driven to move vertically by the vertical driving device, thereby completing the screw tightening tooling on multiple workstations, and the driving cylinder can drive the second sliding block to move along the vertical slide rail, thereby driving the screwdriver to move up and down, thereby ensuring that the screwdriver screws the screws into the steering wheel tooling. The present application greatly improves the tooling efficiency and tooling accuracy of the steering wheel through a fully automated setting.

[0007] In an embodiment of the present invention, a buffer rod capable of penetrating the first slider is disposed on the second slider, and a buffer spring located between the first slider and the second slider is sleeved on the buffer rod.

[0008] To implement the above technical solution, the screwdriver on the second slider can move upward under the drive of the driving cylinder, so that the buffer spring which is sleeved on the buffer rod and located between the first slider and the second slider is compressed. The buffer spring can absorb the impact force of the driving cylinder to prevent the screwdriver from damaging the steering wheel due to the impact force during the process of tightening the screws. After the screwdriver completes its work, the second slider will return to its original position under the contraction force of the driving cylinder and the elastic force of the buffer spring, and drive the screwdriver to return to its original position.

[0009] In one embodiment of the utility model, a vacuum cylinder is disposed on the first sliding block, a vacuum suction tube is disposed on the vacuum cylinder, and the output shaft of the screwdriver can penetrate the vacuum cylinder and be placed in the vacuum suction tube.

[0010] To implement the above technical solution, the vacuum cylinder can evacuate the vacuum pipe, thereby ensuring that the screws are quickly adsorbed, and the output shaft of the screwdriver can extend out of the vacuum pipe and tighten the adsorbed screws.

[0011] In one embodiment of the present invention, a displacement detection device for detecting the screwing depth of the screw is provided on the vertical slide rail.

[0012] By implementing the above technical solution, the displacement detection device can detect the depth of the screw, ensure the tightness of the screw and ensure that the screw can be firmly fixed in the steering wheel, and ensure that the screw and the steering wheel have sufficient connection strength.

[0013] In one embodiment of the utility model, the displacement detection device includes a fixed plate arranged on the vertical slide rail, a GT sensor arranged on the fixed plate, an abutment rod abutting against the GT sensor, and a pushing rod arranged on the second sliding block and used to push the abutment rod.

[0014] To implement the above technical solution, the driving cylinder drives the push rod to push the abutment rod during the process of driving the second slider to move upward, so that the GT sensor detects the displacement of the push rod pushing the abutment rod, thereby detecting the screw-in depth of the screw.

[0015] In one embodiment of the utility model, the GT sensor includes a main body and a telescopic rod arranged on the main body, the fixed plate is provided with a fixed block located below the GT sensor, the abutment rod is passed through the fixed block, and the abutment rod is provided with a card platform clamped on the fixed block.

[0016] To implement the above technical solution, the abutment rod can pass through the fixed block and move up and down in the fixed block, the setting of the card table can ensure the lower limit of the movement of the abutment rod, the abutment rod moves upward under the push of the push rod, and causes the telescopic rod to extend and retract, and the main body of the GT sensor detects the telescopic displacement of the telescopic rod to complete the detection of the screw-in depth.

[0017] In one embodiment of the utility model, the horizontal driving device is a horizontal linear motor, a horizontal bearing seat slidably arranged on the horizontal linear motor, a vertical plate is arranged on the horizontal bearing seat, and the vertical driving device is arranged on the vertical plate.

[0018] To implement the above technical solution, the horizontal linear motor drives the vertical driving device on the horizontal bearing seat to move horizontally. Since the vertical driving device is provided with the screw tightening device, the screw tightening device will be driven to move horizontally.

[0019] In one embodiment of the present invention, the vertical driving device includes a vertical linear motor and a vertical bearing seat slidably disposed on the vertical linear motor, and the mounting plate is disposed on the vertical bearing seat.

[0020] To implement the above technical solution, the vertical linear motor will drive the vertical bearing seat to move vertically. Since the vertical bearing seat is provided with a mounting plate, and the mounting plate is provided with the screw tightening device, the vertical linear motor will drive the screw tightening device to move vertically.

[0021] As described above, the screw tightening and transferring mechanism of the utility model has the following beneficial effects: in the present application, the screw tightening device is driven to move horizontally by the horizontal driving device, and the screw tightening device is driven to move vertically by the vertical driving device, so as to complete the screw tightening tooling on multiple workstations, and the driving cylinder can drive the second sliding block to move along the vertical slide rail to drive the screwdriver to move up and down, so as to ensure that the screwdriver screws the screw into the steering wheel tooling, and the buffer spring can absorb the impact force of the driving cylinder to prevent the screwdriver from damaging the steering wheel due to the impact force during the process of tightening the screw; the displacement detection device can detect the depth of the screw being screwed in, ensure the tightness of the screw and ensure that the screw can be firmly fixed in the steering wheel, and ensure that the screw and the steering wheel have sufficient connection strength; the present application greatly improves the tooling efficiency and tooling accuracy of the steering wheel through a fully automated setting. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 Shown is a schematic diagram of the structure of the utility model.

[0023] Figure 2 Shown is another structural schematic diagram of the utility model.

[0024] Figure 3 Shown is a schematic diagram of the structure of a screw tightening device.

[0025] Figure 4 Another schematic diagram of the structure of a screw tightening device is shown.

[0026] Figure 5 Display as Figure 3 A partial enlarged view of point A in the middle.

[0027] Component number description

[0028] 1. Mounting plate; 2. Vertical slide rail; 3. First slider; 4. Second slider; 5. Screwdriver; 6. Driving cylinder; 7. Buffer rod; 8. Buffer spring; 9. Vacuum cylinder; 10. Vacuum suction tube; 11. Fixed plate; 12. GT sensor; 121. Main body; 122. Telescopic rod; 13. Abutment rod; 131. Card table; 14. Push rod; 15. Fixed block; 16. Horizontal linear motor; 17. Horizontal bearing seat; 18. Vertical plate; 19. Vertical linear motor; 20. Vertical bearing seat. DETAILED DESCRIPTION

[0029] The following specific embodiments illustrate the implementation of the present invention, and those familiar with the technology can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0030] See also Figures 1 to 5 The utility model provides a screw tightening and transferring mechanism, including a horizontal driving device, two vertical driving devices arranged on the horizontal driving device and arranged in parallel and symmetrically, both of the vertical driving devices are provided with a screw tightening device, and the screw tightening device includes a mounting plate 1, a vertical slide rail 2 arranged on the mounting plate 1, a first slider 3 slidably arranged on the vertical slide rail 2, a second slider 4 slidably arranged on the vertical slide rail 2 and located below the first slider 3, a screwdriver 5 is provided on the second slider 4, and a driving cylinder 6 for driving the second slider 4 to move along the vertical slide rail 2 is provided at the lower end of the vertical slide rail 2.

[0031] In the present application, the screw tightening device is driven to move horizontally by the horizontal driving device, and is driven to move vertically by the vertical driving device, thereby completing the screw tightening tooling on multiple workstations. The driving cylinder 6 can drive the second sliding block 4 to move along the vertical slide rail 2, thereby driving the screwdriver 5 to move up and down, thereby ensuring that the screwdriver 5 screws the screws into the steering wheel tooling. The present application greatly improves the tooling efficiency and tooling accuracy of the steering wheel through a fully automated setting.

[0032] The second slider 4 is provided with a buffer rod 7 that can penetrate the first slider 3, and the buffer rod 7 is sleeved with a buffer spring 8 located between the first slider 3 and the second slider 4. The screwdriver 5 on the second slider 4 can move upward under the drive of the driving cylinder 6, so that the buffer spring 8 sleeved on the buffer rod 7 and located between the first slider 3 and the second slider 4 is compressed. The buffer spring 8 can absorb the impact force of the driving cylinder 6 to prevent the screwdriver 5 from damaging the steering wheel due to the impact force during the process of tightening the screws. After the screwdriver 5 finishes its work, the second slider 4 will return to its original position under the contraction force of the driving cylinder 6 and the elastic force of the buffer spring 8, and drive the screwdriver 5 to return to its original position.

[0033] The first slider 3 is provided with a vacuum cylinder 9, and the vacuum cylinder 9 is provided with a vacuum suction pipe 10. The output shaft of the screwdriver 5 can penetrate the vacuum cylinder 9 and be placed in the vacuum suction pipe 10. The vacuum cylinder 9 can evacuate the vacuum suction pipe 10, thereby ensuring that the screws are quickly adsorbed, and the output shaft of the screwdriver 5 can extend out of the vacuum suction pipe 10 and tighten the adsorbed screws.

[0034] The vertical rail 2 is provided with a displacement detection device for detecting the screwing depth of the screw. The displacement detection device can detect the screwing depth of the screw, ensure the tightness of the screw and ensure that the screw can be firmly fixed in the steering wheel, and ensure that the screw and the steering wheel have sufficient connection strength.

[0035] The displacement detection device includes a fixing plate 11 disposed on the vertical slide rail 2, a GT sensor 12 disposed on the fixing plate 11, an abutting rod 13 abutting against the GT sensor 12, and a pushing rod 14 disposed on the second slider 4 and used to push the abutting rod 13. The driving cylinder 6 drives the pushing rod 14 to push the abutting rod 13 in the process of driving the second slider 4 to move upward, so that the GT sensor 12 detects the displacement of the pushing rod 14 pushing the abutting rod 13, thereby detecting the screwing depth of the screw.

[0036] The GT sensor 12 includes a body 121 and a telescopic rod 122 disposed on the body 121. The fixing plate 11 is provided with a fixing block 15 located below the GT sensor 12. The fixing block 15 is provided with the abutting rod 13. The abutting rod 13 is provided with a clamping table 131 clamped on the fixing block 15. The abutting rod 13 can be passed through the fixing block 15 and move up and down in the fixing block 15. The setting of the clamping table 131 can ensure the lower limit of movement of the abutting rod 13. The abutting rod 13 moves upward under the push of the push rod 14, and the telescopic rod 122 is extended and retracted. The body 121 of the GT sensor 12 detects the telescopic displacement of the telescopic rod 122 to complete the detection of the screw-in depth.

[0037] The horizontal driving device is a horizontal linear motor 16, a horizontal bearing seat 17 slidably arranged on the horizontal linear motor 16, a vertical plate 18 is arranged on the horizontal bearing seat 17, and the vertical driving device is arranged on the vertical plate 18. The horizontal linear motor 16 drives the vertical driving device on the horizontal bearing seat 17 to move horizontally, and since the screw tightening device is arranged on the vertical driving device, the screw tightening device is driven to move horizontally.

[0038] The vertical driving device includes a vertical linear motor 19 and a vertical bearing seat 20 slidably arranged on the vertical linear motor 19, and the vertical bearing seat 20 is provided with the mounting plate 1. The vertical linear motor 19 drives the vertical bearing seat 20 to move vertically, and since the vertical bearing seat 20 is provided with the mounting plate 1, and the mounting plate 1 is provided with the screw tightening device, the vertical linear motor 19 drives the screw tightening device to move vertically.

[0039] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. All equivalent modifications or changes made by those skilled in the art without departing from the spirit and technical ideas disclosed in the present invention shall still be covered by the claims of the present invention.

Claims

1. A screw tightening and transferring mechanism, comprising a horizontal driving device, and two vertical driving devices arranged on the horizontal driving device and arranged in parallel and symmetrically, wherein both vertical driving devices are provided with a screw tightening device, characterized in that: The screw tightening device comprises a mounting plate (1), a vertical slide rail (2) arranged on the mounting plate (1), a first slider (3) slidably arranged on the vertical slide rail (2), a second slider (4) slidably arranged on the vertical slide rail (2) and located below the first slider (3), a screwdriver (5) being arranged on the second slider (4), and a driving cylinder (6) for driving the second slider (4) to move along the vertical slide rail (2) being arranged at the lower end of the vertical slide rail (2).

2. The screw tightening and transferring mechanism according to claim 1, characterized in that: The second slider (4) is provided with a buffer rod (7) capable of penetrating the first slider (3), and the buffer rod (7) is sleeved with a buffer spring (8) located between the first slider (3) and the second slider (4).

3. The screw tightening and transferring mechanism according to claim 1, characterized in that: The first slider (3) is provided with a vacuum cylinder (9), the vacuum cylinder (9) is provided with a vacuum suction pipe (10), and the output shaft of the screwdriver (5) can pass through the vacuum cylinder (9) and be placed in the vacuum suction pipe (10).

4. The screw tightening and transferring mechanism according to claim 1, characterized in that: The vertical slide rail (2) is provided with a displacement detection device for detecting the screw-in depth of the screw.

5. The screw tightening and transferring mechanism according to claim 4, characterized in that: The displacement detection device comprises a fixing plate (11) arranged on the vertical slide rail (2), a GT sensor (12) arranged on the fixing plate (11), an abutting rod (13) abutting against the GT sensor (12), and a pushing rod (14) arranged on the second sliding block (4) and used for pushing the abutting rod (13).

6. The screw tightening and transferring mechanism according to claim 5, characterized in that: The GT sensor (12) comprises a body (121) and a telescopic rod (122) arranged on the body (121); a fixing block (15) located below the GT sensor (12) is provided on the fixing plate (11); the abutment rod (13) is passed through the fixing block (15); and a clamping platform (131) clamped on the fixing block (15) is provided on the abutment rod (13).

7. The screw tightening and transferring mechanism according to claim 1, characterized in that: The horizontal driving device comprises a horizontal linear motor (16), a horizontal bearing seat (17) slidably arranged on the horizontal linear motor (16), a vertical plate (18) being arranged on the horizontal bearing seat (17), and the vertical plate (18) being arranged on the vertical driving device.

8. The screw tightening and transferring mechanism according to claim 1, characterized in that: The vertical driving device comprises a vertical linear motor (19), a vertical bearing seat (20) slidably arranged on the vertical linear motor (19), and the mounting plate (1) is arranged on the vertical bearing seat (20).

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