Screw locking device

Abstract

A screw locking device is used for solving the technical problem that in the prior art, when a screw locking device locks a screw on a product, the screw locking end of the screw locking device is prone to colliding with the product, a machine table or peripheral parts, and consequently the screw locking device locks the screw on the product unstably. A guide rail is fixedly arranged on the supporting seat, a first sliding plate is slidably arranged on the guide rail, a driving air cylinder is fixedly arranged on the supporting seat, the telescopic end of the driving air cylinder is fixedly connected with the top of the first sliding plate, and a second sliding plate is arranged at the bottom of the first sliding plate and slidably arranged on the guide rail. Two floating assemblies used for driving the second sliding plate to vertically slide are arranged between the first sliding plate and the second sliding plate, two feeding assemblies used for feeding screws are arranged on the second sliding plate, two locking assemblies used for locking the screws are arranged on the first sliding plate, and the two locking assemblies correspond to the two feeding assemblies in a one-to-one mode.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe clamp processing, and particularly relates to a screw locking device. Background Technique

[0002] A pipe clamp refers to a commonly used pipe fitting in plumbing installation, which is used for fixing pipes to the ground. Usually, screws and nuts need to be tightened before the pipe clamp is shipped.

[0003] For the screw locking device of the prior art, as disclosed in the utility model patent document with the authorization announcement number of "CN221019613" and the patent name of "A positioning post and screw locking device on an automatic jig", a screw locking device is disclosed, including a jig body. A first motor is fixedly installed on the right side inside the jig body through bolts, and the end of the output shaft of the first motor is fixedly connected with a first lead screw, and the left side of the first lead screw is rotatably arranged inside the jig body through a bearing; a belt is sleeved outside the output shaft of the first motor, and a transmission lead screw is sleeved inside the other end of the belt; a first positioning post and a second positioning post are respectively connected to the first lead screw and the transmission lead screw; including a base, the screw locking device further includes a positioning post on an automatic jig, and the front end of the base is fixedly installed with a jig body, and the rear end of the base is fixedly installed with a second motor.

[0004] When the above patent document locks the screw of the product, the screw locking end of the screw locking device is prone to collide with the product, the machine table or the surrounding parts, resulting in unstable screw locking of the product by the screw locking device. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and propose a screw locking device, which is used to solve the technical problem that when the screw locking device of the prior art locks the screw of the product, the screw locking end of the screw locking device is prone to collide with the product, the machine table or the surrounding parts, resulting in unstable screw locking of the product by the screw locking device.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions:

[0007] A screw locking device includes a support base, a guide rail is fixedly arranged on the support base, a first sliding plate is slidably arranged on the guide rail, a driving cylinder is fixedly arranged on the support base and the telescopic end of the driving cylinder is fixedly connected to the top of the first sliding plate, a second sliding plate is arranged at the bottom of the first sliding plate and the second sliding plate is slidably arranged on the guide rail, two floating components for driving the second sliding plate to slide vertically are arranged between the first sliding plate and the second sliding plate, two feeding components for screw feeding are arranged on the second sliding plate, and two locking components for locking the screws are arranged on the first sliding plate and the two locking components correspond to the two feeding components one by one.

[0008] Working Principle:

[0009] First, the operator places the pipe clamp that needs to be screwed under the second slide plate. Then, the operator starts the driving cylinder. The driving cylinder drives the first slide plate, and the first slide plate drives the second slide plate through the floating component. Thus, the first slide plate and the second slide plate gradually approach the pipe clamp that needs to be screwed. When the top of the pipe clamp abuts against the second slide plate, the second slide plate stops moving. Due to the floating component, the first slide plate continues to drive the feeding component and the locking component towards the nut of the pipe clamp. When the feeding component abuts against the nut, the locking component moves the screw in the feeding component downward, so that the screw is locked with the nut on the pipe clamp. Finally, the operator starts the driving cylinder again, and the driving cylinder drives the first slide plate and the second slide plate away from the pipe clamp, and the operator can take out the pipe clamp.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] First, a floating component is provided. The first slide plate can drive the second slide plate to move towards the pipe clamp through the floating component. And when the second slide plate abuts against the pipe clamp, the first slide plate can still drive the feeding component and the locking component towards the pipe clamp.

[0012] Second, a feeding component and a locking component are provided. The feeding component can provide screws, and the locking component can screw the screws in the feeding component into the nut of the pipe clamp. Description of the Drawings

[0013] Figure 1 is a schematic structural diagram of an embodiment of the utility model;

[0014] Figure 2 is Figure 1 an assembled structural diagram at A in

[0015] Figure 3 is a cross-sectional structural diagram of the screw chuck.

[0016] Description of the reference numerals: support base 1, guide rail 2, first slide plate 3, driving cylinder 4, second slide plate 5, first bushing 6, sliding rod 7, fixed block 8, abutting block 9, first spring 10, sleeve 11, screw chuck 12, screw feeding pipe 13, sensor 14, housing 15, rotating block 16, extension block 17, third spring 18, external thread 19, chamber 20, avoidance hole 21, motor 22, first rotating rod 23, universal joint 24, second rotating rod 25, screwdriver 26, second bushing 27, sliding rod 28, mounting block 29, second spring 30, defective waste discharging cylinder 31. Detailed Embodiment

[0017] The technical solutions in the utility model will be further described below with reference to the drawings and embodiments.

[0018] Embodiment:

[0019] As shown in Figure 1 and Figure 2 shown, a screw locking device includes a support base 1, a guide rail 2 is fixedly provided on the support base 1, a first sliding plate 3 is slidably provided on the guide rail 2, a driving cylinder 4 is fixedly provided on the support base 1, and the telescopic end of the driving cylinder 4 is fixedly connected to the top of the first sliding plate 3. By the driving cylinder 4, the first sliding plate 3 can be driven to move on the guide rail 2, so as to facilitate the first sliding plate 3 to approach or move away from the pipe clamp.

[0020] As shown in Figure 1 and Figure 2 shown, a second sliding plate 5 is provided at the bottom of the first sliding plate 3, and the second sliding plate 5 is slidably provided on the guide rail 2. There are two floating components for driving the second sliding plate 5 to slide vertically between the first sliding plate 3 and the second sliding plate 5. The floating component includes a first bushing 6, a sliding rod 7, a fixed block 8, an abutting block 9 and a first spring 10. The first bushing 6 is fixedly provided at the bottom of the first sliding plate 3. One end of the sliding rod 7 is fixedly provided at the top of the second sliding plate 5, and the other end of the sliding rod 7 slides through the first bushing 6 and the first sliding plate 3 and extends to the outside. The fixed block 8 is fixedly provided on the sliding rod 7 and the fixed block 8 is located between the first sliding plate 3 and the second sliding plate 5. The abutting block 9 is fixedly provided at the end of the sliding rod 7 away from the second sliding plate 5. Both ends of the first spring 10 are fixedly provided on the first bushing 6 and the fixed block 8 respectively. By moving the first sliding plate 3 to push the first spring 10, the first spring 10 transmits the pushing force to the second sliding plate 5 when being pushed, so that the second sliding plate 5 can move on the guide rail 2, and the abutting block 9 can limit the sliding range of the sliding rod 7.

[0021] As shown in Figure 1 and Figure 2 and Figure 3 shown, two feeding components for screw feeding are provided on the second sliding plate 5. The feeding component includes a sleeve 11 with a hollow structure, a screw chuck 12, a screw feeding pipe 13 and a sensor 14. The sleeve 11 is fixedly provided on the second sliding plate 5. The screw chuck 12 is provided at the end of the sleeve 11. The screw feeding pipe 13 is rotatably provided on the screw chuck 12, and the end of the screw feeding pipe 13 is conductively connected to the inside of the screw chuck 12. Screws can be supplied to the inside of the screw chuck 12 through the screw feeding pipe 13. The sensor 14 is fixedly provided on the screw feeding pipe 13 for detecting the passing of the screws. A through hole is opened on the screw feeding pipe 13. The sensor 14 can detect the screws passing through the screw feeding pipe 13 through the through hole. The sensor 14 is a photoelectric switch.

[0022] As shown in Figure 1 and Figure 2 and Figure 3As shown, the screw clamping nozzle 12 includes a housing 15, two rotating blocks 16, two extending blocks 17 and two third springs 18. The top of the housing 15 is provided with an external thread 19 and is threadedly connected to the inner wall of the sleeve 11. The disassembly of the housing 15 and the sleeve 11 can be realized through the external thread 19 on the housing 15. A chamber 20 for the screw to pass through is provided inside the housing 15. An avoidance hole 21 is provided on the housing 15. The avoidance hole 21 can provide a certain avoidance space when the screw feeding pipe 13 rotates. The end of the screw feeding pipe 13 extends into the chamber 20 through the avoidance hole 21. The two rotating blocks 16 are respectively rotatably arranged at the bottom of the housing 15 and are used to conduct or block the connection between the chamber 20 and the external space. The two extending blocks 17 are respectively fixed on the two rotating blocks 16. The two third springs 18 are respectively fixed on the two extending blocks 17 and both are fixedly connected to the housing 15. By the screw pushing the rotating block 16, the rotating block 16 and the extending block 17 can be rotated, so that the rotating block 16 and the extending block 17 give a pushing force to the third spring 18. The screw is clamped between the two rotating blocks 16. A spring for pushing the screw feeding pipe 13 is provided between the screw feeding pipe 13 and the housing 15.

[0023] As Figure 1 and Figure 2 shown, two locking components for locking the screw are provided on the first slide plate 3 and the two locking components correspond to the two feeding components one by one. The locking component includes a motor 22, a first rotating rod 23, a universal joint 24, a second rotating rod 25 and a screwdriver 26. The motor 22 is fixed on the top of the first slide plate 3. The first rotating rod 23 is fixedly connected to the output end of the motor 22. The universal joint 24 is arranged at the end of the first rotating rod 23. The second rotating rod 25 is arranged at the end of the universal joint 24 away from the first rotating rod 23. The screwdriver 26 is fixed at the end of the second rotating rod 25 and the screwdriver 26 extends into the sleeve 11 and the chamber 20. By driving the first rotating rod 23 by the motor 22, the first rotating rod 23 drives the second rotating rod 25 through the universal joint 24, and the second rotating rod 25 drives the screwdriver 26 to rotate, so that the screwdriver 26 can extend into the chamber 20. The end of the screwdriver 26 can push the screw feeding pipe 13 to make the screw feeding pipe 13 rotate. The second rotating rod 25 extends into the sleeve 11.

[0024] As Figure 1 and Figure 2 shown, a second bushing 27 is fixedly provided at the bottom of the second slide plate 5. A slide bar 28 is provided on the second slide plate 5 and the slide bar 28 sequentially slides through the second slide plate 5 and the second bushing 27. Installation blocks 29 are respectively fixed at both ends of the slide bar 28 and the two installation blocks 29 are respectively located on both sides of the second slide plate 5. A second spring 30 is fixed on the second bushing 27 and the second spring 30 is fixedly connected to the installation block 29 located at the bottom of the second slide plate 5. The installation block 29 abuts against the top of the pipe clamp first. The slide bar 28 on the installation block 29 can move in the second bushing 27.

[0025] As shown Figure 1 and Figure 2 shown, the bottom of the first slide plate 3 is fixedly installed on the defective waste discharging cylinder 31, and the telescopic end of the defective waste discharging cylinder 31 is fixedly connected to the second slide plate 5. When the screw in the chamber 20 is not fully screwed into the pipe clip nut, the defective waste discharging cylinder 31 can drive the second slide plate 5 to move, so that the second slide plate 5 can drive the screw chuck 12 and the screw on the screw chuck 12 away from the pipe clip.

[0026] Working principle:

[0027] First, the operator places the pipe clip to be screwed on below the second slide plate 5, and then the operator starts the driving cylinder 4. The driving cylinder 4 drives the first slide plate 3 to move on the guide rail 2. When the first bushing 6 on the first slide plate 3 moves, the first bushing 6 pushes against the abutting block 9, and the abutting block 9 pushes the sliding rod 7 to move, so that the sliding rod 7 slides to drive the second slide plate 5 to move. When the mounting block 29 on the second slide plate 5 abuts against the top of the pipe clip, the mounting block 29 and the sliding rod 28 on the mounting block 29 move towards the first slide plate 3, and the second spring 30 changes from the natural state to the compressed state. After the second slide plate 5 stops moving, the driving cylinder 4 can still drive the screw chuck 12 and the screwdriver 26 on the first slide plate 3 to move towards the pipe clip.

[0028] After the screw chuck 12 abuts against the nut on the pipe clip, the operator conveys the screw into the screw feeding pipe 13 through an external device and places the screw in the chamber 20. Then the screwdriver 26 moves towards the screw and pushes the screw feeding pipe 13. When the end of the screw feeding pipe 13 corresponds to the avoidance hole 21, the screw feeding pipe 13 conveys the screw towards the avoidance hole 21. At this time, there are screws both in the chamber 20 and at the screw feeding pipe 13. Then the screwdriver 26 moves towards the screw. After that, the screwdriver 26 drives the first rotating rod 23, the universal joint 24 and the second rotating rod 25 through the driving motor 22 to drive the screwdriver 26. When the screwdriver 26 drives the screw towards the pipe clip, the screw first abuts against the rotating block 16 and pushes the rotating block 16. The rotating block 16 drives the extending block 17 to rotate, and the extending block 17 rotates to push the third spring 18, so that the screw is clamped between the two rotating blocks 16. Then under the action of the screwdriver 26, the screw is screwed into the pipe clip. Then the screwdriver 26 moves away from the pipe clip. During the process of moving away, the screw feeding pipe 13 loses the pushing of the screwdriver 26, and the end of the screw feeding pipe 13 rotates back into the chamber 20 again and places the screw in the screw feeding pipe 13 back into the chamber 20.

[0029] When the screw is not fully screwed into the pipe clip due to insufficient torque, the operator starts the defective waste discharging cylinder 31. The defective waste discharging cylinder 31 drives the second slide plate 5 away from the pipe clip. The screw that is not fully screwed into the pipe clip is clamped between the two rotating blocks 16, so that the operator can remove the screw that is not fully screwed into the pipe clip from the rotating block 16.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A screw locking device, characterized in that: The invention comprises a support base (1), a guide rail (2) is fixedly provided on the support base (1), a first slide plate (3) is slidably provided on the guide rail (2), a driving cylinder (4) is fixedly provided on the support base (1), and the telescopic end of the driving cylinder (4) is fixedly connected to the top of the first slide plate (3), a second slide plate (5) is provided at the bottom of the first slide plate (3), and the second slide plate (5) is slidably provided on the guide rail (2), two floating components for driving the second slide plate (5) to slide vertically are provided between the first slide plate (3) and the second slide plate (5), two feeding components for screw feeding are provided on the second slide plate (5), and two locking components for locking screws are provided on the first slide plate (3), and the two locking components correspond to the two feeding components one by one.

2. A screw locking device according to claim 1, characterized in that: The floating assembly comprises a first sleeve (6), a sliding rod (7), a fixed block (8), an abutment block (9) and a first spring (10); the first sleeve (6) is fixedly arranged at the bottom of the first slide plate (3); one end of the sliding rod (7) is fixedly arranged at the top of the second slide plate (5) and the other end of the sliding rod (7) slides through the first sleeve (6) and the first slide plate (3) to extend outward; the fixed block (8) is fixedly arranged on the sliding rod (7) and the fixed block (8) is located between the first slide plate (3) and the second slide plate (5); the abutment block (9) is fixedly arranged at the end of the sliding rod (7) away from the second slide plate (5); and the two ends of the first spring (10) are respectively fixedly arranged on the first sleeve (6) and the fixed block (8).

3. A screw locking device according to claim 1, characterized in that: The feeding assembly comprises a sleeve (11) with a hollow structure, a screw clamping nozzle (12), a screw feeding tube (13) and a sensor (14); the sleeve (11) is fixedly mounted on the second slide plate (5); the screw clamping nozzle (12) is arranged at the end of the sleeve (11); the screw feeding tube (13) is rotatably mounted on the screw clamping nozzle (12) and the end of the screw feeding tube (13) is conductively connected to the inside of the screw clamping nozzle (12); and the sensor (14) is fixedly mounted on the screw feeding tube (13) for detecting the passage of the screw.

4. A screw locking device according to claim 3, characterized in that: The screw clamp (12) comprises a shell (15), two rotating blocks (16), two extension blocks (17) and two third springs (18). The top of the shell (15) is provided with an external thread (19) and is threadedly connected to the inner wall of the sleeve (11). The inside of the shell (15) is provided with a chamber (20) for the screw to pass through. The shell (15) is provided with an avoidance hole (21). The end of the screw feed pipe (13) penetrates into the chamber (20) through the avoidance hole (21). The two rotating blocks (16) are respectively rotatably arranged at the bottom of the shell (15) and the two rotating blocks (16) are used to conduct or close the connection between the chamber (20) and the external space. The two extension blocks (17) are respectively fixed on the two rotating blocks (16). The two third springs (18) are respectively fixed on the two extension blocks (17) and the two third springs (18) are fixedly connected to the shell (15).

5. A screw locking device according to claim 4, characterized in that: The locking assembly comprises a motor (22), a first rotating rod (23), a universal joint (24), a second rotating rod (25) and a screwdriver (26); the motor (22) is fixedly arranged on the top of the first slide plate (3); the first rotating rod (23) is fixedly connected to the output end of the motor (22); the universal joint (24) is arranged at the end of the first rotating rod (23); the second rotating rod (25) is arranged at the end of the universal joint (24) away from the first rotating rod (23); the screwdriver (26) is fixedly arranged at the end of the second rotating rod (25) and the screwdriver (26) penetrates into the sleeve (11) and the chamber (20).

6. A screw locking device according to claim 1, characterized in that: A second shaft sleeve (27) is fixedly provided at the bottom of the second slide plate (5); a slide bar (28) is provided on the second slide plate (5) and the slide bar (28) slides through the second slide plate (5) and the second shaft sleeve (27) in sequence; mounting blocks (29) are fixedly provided at both ends of the slide bar (28) and the two mounting blocks (29) are respectively located on both sides of the second slide plate (5); a second spring (30) is fixedly provided on the second shaft sleeve (27) and the second spring (30) is fixedly connected to the mounting block (29) located at the bottom of the second slide plate (5).

7. A screw locking device according to claim 1, characterized in that: The bottom of the first slide plate (3) is fixedly arranged on a bad exhaust cylinder (31), and the telescopic end of the bad exhaust cylinder (31) is fixedly connected to the second slide plate (5).

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