Automatic bolt locking device

Abstract

The utility model discloses an automatic bolt locking device which comprises a concave frame, a rotating shaft and a connecting rod. A motor is arranged on one side of the concave frame, and a positioning plate is fixedly connected to the interior of the concave frame; the rotating shaft is arranged in the concave frame, the surface of the rotating shaft is provided with a turntable, and the top of the turntable is provided with a gear on the surface of the rotating shaft; the output end of the motor drives the concave frame to rotate so that the concave frame can drive the sleeve to rotate, and therefore the sleeve can tighten a bolt on one side of a piston of the double-air-chamber air spring. When the torque generated by the bolt is larger than the constraining force of the inserting block clamped in the inserting groove, the inserting block can be extruded by the inserting groove, the inserting block can rotate in the arc-shaped groove, and the phenomenon that the motor is burnt or the bolt slips due to too large torque can be prevented; the threaded rod, the movable plate and the toothed plate are driven to move through the handle, the toothed plate is meshed with the gear, the gear can drive the rotating shaft and the rotating disc to rotate, and therefore a large bolt can be tightened.

Description

Technical Field

[0001] The utility model relates to the technical field of bolt locking, in particular to an automatic bolt locking device. Background Art

[0002] Bolts are indispensable parts in daily life and industrial production, and are widely used in daily life and industrial production, for example, in televisions, computers, furniture, and double-chamber air spring pistons. The automatic bolt locking machine is a machine used to replace the traditional manual bolt tightening. Manual bolt tightening includes pure manual tightening and electric bolt cutter or pneumatic bolt cutter tightening. The latter generates rotational power by electric or pneumatic means to replace frequent manual tightening actions, which to some extent reduces the work intensity of bolt locking. The automatic bolt locking machine uses various electric and pneumatic components to realize the automatic delivery, tightening, and detection of bolts. The equipment simplifies the bolt tightening process to reduce the number of manual labor and reduce the adverse factors caused by manual errors.

[0003] Existing automatic bolt locking machines can use electric or pneumatic rotational power to tighten bolts and fix objects, thereby reducing the number of manual labor and reducing manual errors; however, when the bolt is locked, due to the use of motor rotation control, when the bolt enters the limit position of the double-chamber air spring piston, the motor continues to output torque, which can easily cause the motor to burn out or cause thread slippage when the docking object is brittle, which is inconvenient to use; at the same time, the sizes of bolts are different, and different sizes of wrench heads (i.e., bayonet) are required, and the sizes of traditional automatic bolt locking machines are mostly fixed. For example, when installing bolts of different sizes, a new automatic bolt locking machine needs to be replaced, which makes it more cumbersome to use and inconvenient to use. In view of this, we have introduced an automatic bolt locking device. Utility Model Content

[0004] The purpose of the utility model is to provide an automatic bolt locking device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an automatic bolt locking device, comprising: a concave frame, a rotating shaft and a connecting rod;

[0006] A motor is arranged on one side of the concave frame, a positioning plate is fixedly connected inside the concave frame, and the positioning plate and the concave frame are welded;

[0007] The rotating shaft is arranged inside the concave frame, a rotating disc is arranged on the surface of the rotating shaft, a gear is arranged on the top of the rotating disc and located on the surface of the rotating shaft, and the gear is fixedly connected to the rotating shaft;

[0008] The connecting rods are arranged at equal intervals on the side of the rotating disk, the connecting rods and the rotating disk are welded, one side of the connecting rod is connected to a positioning disk, the positioning disk and the connecting rod are welded, one side of the positioning disk is connected to a fixing rod, the positioning disk and the fixing rod are welded, and one side of the fixing rod is provided with a sleeve;

[0009] The fixing rod is provided with a locking and adjusting mechanism inside, and the sleeve stops rotating by rotating the plug-in block of the locking and adjusting mechanism inside the arc groove.

[0010] Preferably, the locking adjustment mechanism includes a positioning groove provided inside the fixing rod, the positioning groove and the fixing rod are integrally formed, a spring is connected inside the positioning groove, the top of the spring is connected to a lifting plate, the bottom of the lifting plate is connected to the top of the spring, so that the spring will be squeezed when the lifting plate moves downward, the plug-in block is connected to the top of the lifting plate, the plug-in block and the lifting plate are welded, a plug-in groove for plugging in the plug-in block is provided inside the sleeve, the arc groove is provided inside the sleeve, and the arc groove, the plug-in groove and the sleeve are integrally formed.

[0011] Preferably, a bayonet is provided inside the sleeve, and the size of the bayonet changes from small to large, so that the size of the bayonet can be suitable for bolts of different sizes.

[0012] Preferably, a threaded rod is connected to one side of the positioning plate, a movable plate is screwed on the surface of the threaded rod, the external thread on the surface of the threaded rod matches and screws with the internal thread inside the movable plate, a toothed plate is connected to one side of the movable plate, and the toothed plate penetrates the positioning plate and meshes with the gear, and the gear can be driven to rotate when the toothed plate moves.

[0013] Preferably, one side of the threaded rod passes through the concave frame and is connected to a handle, and the handle and the threaded rod are welded.

[0014] Preferably, a limiting rod is connected to the interior of the concave frame, and the limiting rod passes through the movable plate. The setting of the limiting rod can limit the movement of the movable plate, so that the movable plate is always in a horizontal state.

[0015] Preferably, a pin is connected to the top of the concave frame, and the pin passes through the turntable and extends to the inside of the concave frame. The setting of the pin can fix the position of the turntable to prevent the turntable from rotating.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] (1) The output end of the motor drives the concave frame to rotate, so that the concave frame drives the sleeve to rotate, so that the sleeve can tighten the bolt on one side of the double-chamber air spring piston;

[0018] (2) In the initial state of the sleeve, the plug-in block inside the fixing rod is plugged into the plug-in slot. When the bolt is tightened, if the torque generated by the bolt is less than the constraint force of the plug-in block in the plug-in slot, the plug-in block will always be plugged into the plug-in slot. When the torque generated by the bolt is greater than the constraint force of the plug-in block in the plug-in slot, the plug-in block will be squeezed by the plug-in slot, so that the plug-in block drives the lifting plate to move toward the inside of the positioning slot, thereby causing the lifting plate to squeeze the spring, and the plug-in block will rotate inside the arc slot, thereby preventing the motor from being burned or the bolt from slipping due to excessive torque, making it easier to use.

[0019] (3) The threaded rod is rotated by the handle, and the threaded rod can drive the movable plate and the toothed plate to move. Since the toothed plate is meshed with the gear, the gear will drive the rotating shaft and the turntable to rotate. The rotation of the turntable will drive the sleeve to rotate, so that the larger sleeve is rotated to one side of the bolt. Then, the pin is inserted into the concave frame after passing through the turntable, so that the turntable and the sleeve can be fixed. At this time, the larger bolt can be tightened, which makes it more convenient to use and more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the utility model when the turntable, gear and sleeve are connected;

[0022] Figure 3 It is a schematic diagram of the structure of the utility model when the fixing rod and the sleeve are disassembled;

[0023] Figure 4 It is a structural schematic diagram of the utility model in a front view.

[0024] In the figure: 1. motor; 2. concave frame; 3. sleeve; 4. threaded rod; 5. moving plate; 6. positioning plate; 7. bayonet; 8. turntable; 9. limit rod; 10. gear; 11. tooth plate; 12. fixing rod; 13. positioning plate; 14. connecting rod; 15. handle; 16. rotating shaft; 17. positioning groove; 18. spring; 19. lifting plate; 20. plug-in block; 21. arc groove; 22. plug-in groove; 23. pin shaft. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-4 The utility model provides a technical solution: an automatic bolt locking device, comprising: a concave frame 2, a motor 1 is arranged on one side of the concave frame 2, and a positioning plate 6 is fixedly connected to the inside of the concave frame 2;

[0027] A rotating shaft 16, wherein the rotating shaft 16 is disposed inside the concave frame 2, a rotating disk 8 is disposed on the surface of the rotating shaft 16, and a gear 10 is disposed on the top of the rotating disk 8 on the surface of the rotating shaft 16;

[0028] Connecting rods 14, the connecting rods 14 are arranged at equal intervals on the side of the rotating disk 8, one side of the connecting rod 14 is connected to a positioning disk 13, one side of the positioning disk 13 is connected to a fixing rod 12, and one side of the fixing rod 12 is provided with a sleeve 3;

[0029] The fixing rod 12 is provided with a locking and adjusting mechanism inside, and the plug-in block 20 of the locking and adjusting mechanism rotates inside the arc groove 21 to stop the sleeve 3 from rotating.

[0030] The locking and adjusting mechanism includes a positioning groove 17 opened inside the fixing rod 12, a spring 18 is connected inside the positioning groove 17, a lifting plate 19 is connected to the top of the spring 18, the plug-in block 20 is connected to the top of the lifting plate 19, a plug-in groove 22 for plugging in the plug-in block 20 is opened inside the sleeve 3, and the arc groove 21 is opened inside the sleeve 3.

[0031] The sleeve 3 has a bayonet 7 formed inside, and the size of the bayonet 7 changes from small to large, so that the size of the bayonet 7 can be suitable for bolts of different sizes.

[0032] A threaded rod 4 is connected to one side of the positioning plate 6, and a movable plate 5 is screwed on the surface of the threaded rod 4. The external thread on the surface of the threaded rod 4 matches and screws with the internal thread inside the movable plate 5. A toothed plate 11 is connected to one side of the movable plate 5, and the toothed plate 11 penetrates the positioning plate 6 and meshes with the gear 10. The movement of the toothed plate 11 can drive the gear 10 to rotate.

[0033] One side of the threaded rod 4 passes through the concave frame 2 and is connected to a handle 15 , and the handle 15 and the threaded rod 4 are welded.

[0034] The concave frame 2 is internally connected with a limiting rod 9, and the limiting rod 9 penetrates the movable plate 5. The setting of the limiting rod 9 can limit the movement of the movable plate 5, so that the movable plate 5 is always in a horizontal state.

[0035] A pin 23 is connected to the top of the concave frame 2, and the pin 23 passes through the turntable 8 and extends to the inside of the concave frame 2. The setting of the pin 23 can fix the position of the turntable 8 to prevent the turntable 8 from rotating.

[0036] Specifically, when in use, it is necessary to screw the bolt into the double-chamber air spring piston, and then insert the bayonet 7 on the surface of the sleeve 3 into the surface of the bolt through the concave frame 2. At this time, start the motor 1, so that the output end of the motor 1 drives the concave frame 2 to rotate, and the pin shaft 23 passes through the turntable 8 and is inserted into the interior of the concave frame 2 in the initial state, and the turntable 8 is fixed to prevent the turntable 8 from rotating, so that the concave frame 2 drives the sleeve 3 to rotate, so that the sleeve 3 can tighten the bolt on one side of the double-chamber air spring piston, and in the initial state of the sleeve 3, the plug-in block 20 inside the fixing rod 12 is plugged into the inside of the plug-in slot 22, and when the bolt is tightened, When the bolt is tightened (i.e., when the torque generated by the bolt is less than the restraining force of the plug-in block 20 engaged in the plug-in slot 22), the plug-in block 20 will always be plugged into the plug-in slot 22, and when the torque generated on the bolt is greater than the restraining force of the plug-in block 20 engaged in the plug-in slot 22, the plug-in block 20 will be squeezed by the plug-in slot 22, so that the plug-in block 20 drives the lifting plate 19 to move toward the inside of the positioning slot 17, so that the lifting plate 19 squeezes the spring 18, and the plug-in block 20 will rotate inside the arc groove 21, thereby preventing the motor 1 from being burned or the bolt from being stripped due to excessive torque, and facilitating use;

[0037] When it is necessary to replace the bayonet 7 on the surface of the sleeve 3 of different sizes, turn the handle 15 to allow the handle 15 to drive the threaded rod 4 to rotate. Since the external thread on the surface of the threaded rod 4 is matched and screwed with the internal thread inside the movable plate 5, the threaded rod 4 can drive the movable plate 5 and the toothed plate 11 to move. When the toothed plate 11 moves, since the toothed plate 11 is meshed with the gear 10, the gear 10 will drive the rotating shaft 16 and the turntable 8 to rotate. When the turntable 8 rotates, the sleeve 3 will be driven to rotate, so that the larger sleeve 3 is rotated to one side of the bolt, and then the pin shaft 23 is inserted into the interior of the concave frame 2 after passing through the turntable 8, so that the turntable 8 and the sleeve 3 can be fixed. At this time, the larger bolt can be tightened, which makes it more convenient to use and more practical.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic bolt locking device, characterized in that: include: A concave frame (2), a motor (1) being arranged on one side of the concave frame (2), and a positioning plate (6) being fixedly connected inside the concave frame (2); A rotating shaft (16), the rotating shaft (16) being arranged inside the concave frame (2), a rotating disk (8) being arranged on the surface of the rotating shaft (16), and a gear (10) being arranged on the top of the rotating disk (8) and on the surface of the rotating shaft (16); Connecting rods (14), the connecting rods (14) are arranged at equal intervals on the side of the rotating disk (8), one side of the connecting rod (14) is connected to a positioning disk (13), one side of the positioning disk (13) is connected to a fixing rod (12), and one side of the fixing rod (12) is provided with a sleeve (3); A locking and adjusting mechanism is arranged inside the fixing rod (12), and the insertion block (20) of the locking and adjusting mechanism rotates inside the arc groove (21) to stop the sleeve (3) from rotating.

2. The automatic bolt locking device according to claim 1, characterized in that: The locking and adjusting mechanism comprises a positioning groove (17) provided inside the fixing rod (12), a spring (18) being connected inside the positioning groove (17), a lifting plate (19) being connected to the top of the spring (18), the plug-in block (20) being connected to the top of the lifting plate (19), a plug-in groove (22) for plugging the plug-in block (20) being provided inside the sleeve (3), and the arc groove (21) being provided inside the sleeve (3).

3. The automatic bolt locking device according to claim 2, characterized in that: A bayonet (7) is provided inside the sleeve (3), and the size of the bayonet (7) increases from small to large.

4. The automatic bolt locking device according to claim 1, characterized in that: One side of the positioning plate (6) is connected to a threaded rod (4), a movable plate (5) is screwed onto the surface of the threaded rod (4), one side of the movable plate (5) is connected to a toothed plate (11), and the toothed plate (11) penetrates the positioning plate (6) and meshes with the gear (10).

5. The automatic bolt locking device according to claim 4, characterized in that: One side of the threaded rod (4) passes through the concave frame (2) and is connected to a handle (15).

6. The automatic bolt locking device according to claim 4, characterized in that: The interior of the concave frame (2) is connected to a limiting rod (9), and the limiting rod (9) passes through the movable plate (5).

7. The automatic bolt locking device according to claim 1, characterized in that: The top of the concave frame (2) is connected with a pin shaft (23), and the pin shaft (23) passes through the rotating disk (8) and extends to the inside of the concave frame (2).

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