Automatic screw locking mechanism for flip cover

Abstract

The utility model belongs to the technical field of screw locking, and particularly relates to an automatic flip screw locking mechanism which comprises a positioning base, a left-right translation air cylinder set assembled and connected to the positioning base, a rack set assembled and connected to the left-right translation air cylinder set, a first lifting mechanism installed on the upper portion of the rack set, and an installation plate connected to the first lifting mechanism. The mounting plate is assembled and connected with a second lifting mechanism, the output end of the second lifting mechanism is assembled and connected with a screw locking servo motor set, the screw locking servo motor set comprises a first servo motor, and an output shaft of the first servo motor is assembled and connected with a screw discharging clamping nozzle set; the first lifting mechanism and the second lifting mechanism are used for controlling the bit to ascend and descend, the first lifting mechanism controls the bit to ascend and descend quickly, the second lifting mechanism controls the lead screw to rotate through the second servo motor, the lead screw rotates to drive the first lifting plate and the second lifting plate to ascend and descend, and therefore the screw discharging clamping nozzle set descends at the constant speed.

Description

Technical Field

[0001] This utility model belongs to the field of screw fastening technology, specifically relating to an automatic fastening mechanism for flip screws. Background Technology

[0002] Chinese patent CN210451689U discloses an automatic screw fastening mechanism, comprising: a fixed bracket, a cylinder assembly, and a fastening device, wherein: the cylinder assembly is mounted on the fixed bracket; the fastening device is driven by the cylinder assembly to complete screw fastening, and the bottom of the fastening device is provided with a pressure nozzle for adsorbing and providing screw fastening. This utility model, through this automatic screw fastening mechanism, can improve screw fastening efficiency, reduce labor costs, and has a simple structure.

[0003] Chinese patent CN221270282U discloses an automatic screw fastening mechanism, including a worktable. A first groove is formed on the upper side of the worktable. A first motor is fixedly connected to the right side of the worktable. A bidirectional threaded rod is fixedly connected to the output end of the first motor. Threaded blocks are threaded to both sides of the bidirectional threaded rod. A fixing plate is fixedly connected to the upper part of the threaded blocks. A second groove is formed on the adjacent side of the fixing plate. A uniformly distributed buffer assembly is fixedly connected inside the second groove. A clamping plate is fixedly connected to the output end of the buffer assembly. The buffer assembly includes a telescopic rod, which is fixedly connected inside the second groove. This invention enables rapid clamping and limiting of workpieces, thereby improving processing efficiency. It also achieves automated screw fastening, improving screw fastening efficiency and reducing labor costs.

[0004] In existing technologies, the lifting and lowering of automatic fastening mechanisms are usually directly controlled by cylinders or telescopic cylinders. This can easily lead to a rapid descent of the mechanism during the screw fastening process, while tightening screws usually requires a slow descent process. Controlling the descent of the mechanism by cylinders or hydraulic cylinders makes it difficult to control its uniform descent. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide an automatic locking mechanism for flip-top screws to solve the problems mentioned in the background art.

[0006] To achieve the above technical objectives, the technical solution adopted by this utility model is as follows:

[0007] An automatic screw fastening mechanism for flip-top screws includes a positioning base, on which a left and right translation cylinder assembly is mounted and connected. The left and right translation cylinder assembly is mounted and connected to a frame assembly. A first lifting mechanism is mounted on the upper part of the frame assembly. The first lifting mechanism is connected to a mounting plate. A second lifting mechanism is mounted and connected to the mounting plate. A screw fastening servo motor assembly is mounted and connected to the output end of the second lifting mechanism. The screw fastening servo motor assembly includes a first servo motor. The output shaft of the first servo motor is mounted and connected to a screw discharge clamp assembly.

[0008] The second lifting mechanism includes a second servo motor that is fixedly connected to the mounting plate. The output shaft of the second servo motor is connected to a lead screw, which is driven by a first lifting plate. The first lifting plate is connected to a second lifting plate that is assembled and connected to the first servo motor.

[0009] Further specifying, the frame assembly includes two trapezoidal plates with trapezoidal cross-sections and a vertical plate, the trapezoidal plates being located on the upper side of the left and right translation cylinder assembly, and the vertical plate being located on the front side of the left and right translation cylinder assembly.

[0010] Further specifying, the first lifting mechanism includes a cylinder, the cylinder is fixedly assembled and connected to the vertical plate, the output shaft of the cylinder is assembled and connected to the mounting plate, and a first linear guide rail is assembled and connected between the rear side of the mounting plate and the trapezoidal plate.

[0011] Further specifying, the screw feeding clamp assembly includes a screwdriver bit, the mounting plate is assembled with a connecting plate, the lower side of the connecting plate is fixedly connected to a toothed nozzle, the side of the toothed nozzle is connected to a screw feeding tube, and the screwdriver bit is located inside the toothed nozzle.

[0012] Further specifying, the output shaft of the first servo motor of the screw fastening servo motor assembly is connected to the bit drive, and a second linear guide is assembled and connected between the first servo motor and the mounting plate.

[0013] Further specified, a spring guide shaft is fixedly connected to the upper side of the first lifting plate, and a spring is assembled and connected to the spring guide shaft. The second lifting plate is located below the spring of the spring guide shaft and is slidably connected to the spring guide shaft.

[0014] Further specified, a rotating seat is rotatably connected below the lead screw, and the rotating seat is fixedly connected to the mounting plate.

[0015] Further specified, a first limiting member is fixedly connected to one side of the vertical plate, and a second limiting member is fixedly connected to one side of the mounting plate, with the first limiting member located directly below the second limiting member.

[0016] Compared with the prior art, the present invention has the following advantages:

[0017] This invention controls the lifting and lowering of the screwdriver bit through the cooperation of a first lifting mechanism and a second lifting mechanism. The first lifting mechanism controls the rapid lifting and lowering of the screwdriver bit, thereby controlling the lifting and lowering of the screwdriver bit before and after use according to the working state of the screwdriver bit. The second lifting mechanism controls the rotation of the lead screw through a second servo motor. After the lead screw rotates, it drives the first lifting plate and the second lifting plate to rise and fall, thereby realizing the uniform descent of the screw discharge clamp assembly. This ensures that the screwdriver bit rotates and descends at a uniform speed during the screw fastening process, and the connection between the screw and the connected part is stable, preventing the screw from being subjected to excessive force during the descent.

[0018] This invention uses a left-right translation cylinder assembly to achieve horizontal movement of the screw discharge clamp assembly, thereby making it easier to control the position of the tooth.

[0019] This utility model limits the downward movement of the mounting plate relative to the vertical plate by setting the first and second limiting members, effectively restricting the mounting plate from continuing to move downward under the force of the cylinder. Attached Figure Description

[0020] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0021] Figure 1 This is a schematic diagram of the automatic locking mechanism for flip-top screws of this utility model;

[0022] Figure 2 This is a side view of the automatic screw fastening mechanism for flip covers of this utility model;

[0023] Figure 3 This is a rear side view of the automatic locking mechanism for flip-top screws of this utility model;

[0024] Figure 4 This is an isometric view of the automatic locking mechanism for flip-top screws of this utility model;

[0025] Figure 5 This is an enlarged view of the screw discharge clamp assembly of this utility model;

[0026] Figure 6 This is a cross-sectional view of the screw discharge clamp assembly of this utility model;

[0027] The symbols for the main components are explained below:

[0028] Positioning base 1, left and right translation cylinder assembly 2, frame assembly 3, trapezoidal plate 31, vertical plate 32;

[0029] First lifting mechanism 4, cylinder 41, first linear guide rail 42;

[0030] Mounting plate 5, second lifting mechanism 6, second servo motor 61, lead screw 62, first lifting plate 63, second lifting plate 64, spring guide shaft 65, rotating seat 66;

[0031] 7. Threaded fastening servo motor assembly, 71. First servo motor, 70. Screw feeding chuck assembly, 72. Screw bit, 74. Screw feeding tube, 75. Second linear guide rail, 76.

[0032] First limiting component 81, second limiting component 82. Detailed Implementation

[0033] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0034] like Figure 1-6 As shown, the automatic screw fastening mechanism for flip covers includes a positioning base 1, a left and right translation cylinder group 2 is assembled and connected to the positioning base 1, a frame group 3 is assembled and connected to the left and right translation cylinder group 2, a first lifting mechanism 4 is installed on the upper part of the frame group 3, a mounting plate 5 is connected to the first lifting mechanism 4, a second lifting mechanism 6 is assembled and connected to the mounting plate 5, a screw fastening servo motor group 7 is assembled and connected to the output end of the second lifting mechanism 6, the screw fastening servo motor group 7 includes a first servo motor 71, and a screw discharge clamp group 70 is assembled and connected to the output shaft of the first servo motor 71.

[0035] The second lifting mechanism 6 includes a second servo motor 61 that is fixedly connected to the mounting plate 5. The output shaft of the second servo motor 61 is connected to a lead screw 62. The lead screw 62 is driven by a first lifting plate 63. The first lifting plate 63 is connected to a second lifting plate 64 that is assembled and connected to the first servo motor 71.

[0036] In this embodiment, the positioning base 1 is used to install the screw fastening mechanism. The translation cylinder group 2 is used to drive the screw fastening mechanism to move left and right, so that the screw fastening mechanism can move left and right according to the position of the screw. The screw fastening mechanism is moved by controlling the output end of the translation cylinder. The frame group 3 is used to connect the first lifting mechanism 4 to the left and right translation cylinder group 2. The first lifting mechanism 4 is used to control the screw discharge clamp group 70 to move over a wide range, so that the screw discharge clamp group 70 can quickly rise after the work is completed and quickly leave the operation panel for the next operation. The screw discharge clamp group 70 is controlled to move up and down before and after fastening. The second lifting mechanism 6 is used to control the mechanism to move downward when fastening the screw. After fastening is completed... Automatic reset; a threaded sleeve is provided between the first lifting plate 63 and the lead screw 62. When the lead screw 62 rotates, it drives the first lifting plate 63 to move up and down. When the first servo motor 71 rotates at a constant speed, the first lifting plate 63 moves up and down at a constant speed synchronously. The first servo motor 71 controls the toothed nozzle of the screw discharge clamp assembly 70 to rotate synchronously. When the toothed nozzle drives the screw to rotate, the second servo motor 61 drives the lead screw 62 to rotate, so that the screw descends during the rotation. The rotation of the lead screw 62 is the same as the screw rotation and descent process, making the connection between the screw and the connected part more stable. A drag chain is provided on one side of the mounting plate 5 to provide traction and protection for the air pipes, lines, etc. set in this structure. A coupling is provided between the second servo motor 61 and the lead screw 62, and the lead screw 162 is driven to rotate through the coupling.

[0037] Reference Figure 3 The frame assembly 3 includes two trapezoidal plates 31 and a vertical plate 32 with trapezoidal cross-sections. The trapezoidal plates 31 are located on the upper side of the left and right translation cylinder assembly 2, and the vertical plate 32 is located on the front side of the left and right translation cylinder assembly 2. In this embodiment, the frame assembly 3 is arranged such that the mounting plate 5 is located on the front side of the positioning base 1 and the left and right translation cylinder assembly 2, and will not interfere with the mounting plate 5 when the screw discharge clamp assembly 70 is working.

[0038] Reference Figure 1-2 The first lifting mechanism 4 includes a cylinder 41, which is fixedly connected to the vertical plate 32. The output shaft of the cylinder 41 is connected to the mounting plate 5. A first linear guide rail 42 is connected between the rear side of the mounting plate 5 and the trapezoidal plate 31. In this embodiment, the first lifting mechanism 4 controls all components connected to the mounting plate 5 to move up and down through the cylinder 41.

[0039] Reference Figure 1 , Figure 5 and Figure 6The screw feeding jaw assembly 70 includes a screwdriver bit 72. A mounting plate 5 is assembled and connected to a connecting plate 51. A threaded nozzle 74 is fixedly connected to the lower side of the connecting plate 51. A screw feeding tube 75 is connected to the side of the threaded nozzle 74, and the screwdriver bit 72 is located inside the threaded nozzle 74. In this embodiment, the screwdriver bit 72 is used to drive the screw to rotate, and the screw feeding tube 75 is used to transport the screw. The screw is located inside the threaded nozzle 74 through the screw feeding tube 75. When the screwdriver bit 72 descends, it contacts the upper end of the screw, causing the screw to rotate.

[0040] Reference Figure 4 The output shaft of the first servo motor 71 of the screw fastening servo motor assembly 7 is connected to the screwdriver bit 72. A second linear guide rail 76 is assembled and connected between the first servo motor 71 and the mounting plate 5. In this embodiment, the screwdriver bit 72 is rotated by the first servo motor 71. When the second lifting mechanism 6 drives the screw fastening servo motor assembly 7 to rise and fall, the mounting plate 5 moves up and down along the second linear guide rail 76.

[0041] Reference Figure 4 A spring guide shaft 65 is fixedly connected to the upper side of the first lifting plate 63, and a spring is mounted on the spring guide shaft 65. The second lifting plate 64 is located below the spring on the spring guide shaft 65 and is slidably connected to the spring guide shaft 65. In this embodiment, by placing the second lifting plate 64 below the spring, the spring compresses the second lifting plate 64. Thus, when the first lifting plate 63 moves up and down, it drives the second lifting plate 64 to move up and down. At the same time, when the screw can no longer move downward, the screw will exert a reaction force on the spring, thereby compensating for the displacement through the elastic compression of the spring.

[0042] Reference Figure 4 A rotating seat 66 is rotatably connected to the lower part of the lead screw 62, and the rotating seat 66 is fixedly connected to the mounting plate 5. In this embodiment, the lower end position of the lead screw 62 is fixed by the rotating seat 66.

[0043] Reference Figure 4 A first limiting member 81 is fixedly connected to one side of the vertical plate 32, and a second limiting member 82 is fixedly connected to one side of the mounting plate 5. The first limiting member 81 is located directly below the second limiting member 82.

[0044] In this embodiment, the first limiting member 81 is used to limit the downward movement distance of the second limiting member 82, and to prevent the second limiting member 82 from continuing to move downward after contacting the first limiting member 81.

[0045] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0046] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A flip cover screw automatic locking mechanism, comprising a positioning base (1), the positioning base (1) is assembled and connected with a left-right translation air cylinder group (2), the left-right translation air cylinder group (2) is assembled and connected with a rack group (3), characterized in that: The upper part of the rack group (3) is provided with a first lifting mechanism (4), the first lifting mechanism (4) is connected with a mounting plate (5), the mounting plate (5) is assembled and connected with a second lifting mechanism (6), the output end of the second lifting mechanism (6) is assembled and connected with a screw locking servo motor set (7), the screw locking servo motor set (7) comprises a first servo motor (71), the output shaft of the first servo motor (71) is assembled and connected with a screw discharging nozzle group (70). The second lifting mechanism (6) comprises a second servo motor (61) fixedly assembled and connected with the mounting plate (5), the output shaft of the second servo motor (61) is connected with a lead screw (62), the lead screw (62) is drivingly connected with a first lifting plate (63), the first lifting plate (63) is connected with a second lifting plate (64) assembled and connected with the first servo motor (71).

2. The flip-screw automatic lock-down mechanism of claim 1, wherein: The rack group (3) comprises two trapezoidal plates (31) and vertical plates (32), the trapezoidal plates (31) are located on the upper side of the left and right translation cylinder groups (2), and the vertical plates (32) are located on the front side of the left and right translation cylinder groups (2).

3. The flip-screw automatic lock-down mechanism of claim 1, wherein: The first lifting mechanism (4) comprises a cylinder (41), the cylinder (41) is fixedly assembled and connected with the vertical plate (32), the output shaft of the cylinder (41) is assembled and connected with the mounting plate (5), and the rear side of the mounting plate (5) is assembled and connected with the trapezoidal plate (31) through a first linear guide rail (42).

4. The flip-screw automatic lock-down mechanism of claim 1, wherein: The screw discharging nozzle group (70) comprises a batch head (72), the mounting plate (5) is assembled and connected with a connecting plate (51), the lower side of the connecting plate (51) is fixedly connected with a mouthpiece (74), the side surface of the mouthpiece (74) is communicated with a screw discharging pipe (75), and the batch head (72) is located in the mouthpiece (74).

5. The flip-screw automatic lock-down mechanism of claim 4, wherein: The output shaft of the first servo motor (71) of the screw locking servo motor set (7) is drivingly connected with the batch head (72), and the first servo motor (71) is assembled and connected with the mounting plate (5) through a second linear guide rail (76).

6. The flip-screw automatic lock-down mechanism of claim 1, wherein: The upper side of the first lifting plate (63) is fixedly assembled and connected with a spring guide shaft (65), the spring guide shaft (65) is assembled and connected with a spring, and the second lifting plate (64) is located on the lower side of the spring of the spring guide shaft (65) and is slidingly connected with the spring guide shaft (65).

7. The flip-screw automatic lock-down mechanism of claim 5, wherein: The lower side of the lead screw (62) is rotatably connected with a rotating seat (66), and the rotating seat (66) is fixedly connected with the mounting plate (5).

8. The flip-screw automatic lock-down mechanism of claim 3, wherein: One side of the vertical plate (32) is fixedly connected with a first limiting piece (81), one side of the mounting plate (5) is fixedly connected with a second limiting piece (82), and the first limiting piece (81) is located directly below the second limiting piece (82).

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