Screw locking electric screwdriver driven by industrial robot

Abstract

The utility model discloses a screw locking electric screwdriver driven by an industrial robot, which comprises a fixing frame, the fixing frame is connected with a mounting box, an air cylinder is mounted on one side of the top of the mounting box, a power output end of the air cylinder is connected with a locking block, the locking block is connected with a movable seat, sliding seats are mounted on two sides of the movable seat, and the sliding seats are slidably connected with linear guide rails. The movable seat is provided with a driving motor, the power output end of the driving motor is connected with a connecting plug, the connecting plug is connected with an electric screwdriver shaft, the bottom of the electric screwdriver shaft is connected with a screwdriver head rod, and a limiting assembling assembly is installed at the joint of the electric screwdriver shaft and the screwdriver head rod. The air cylinder pushes the movable base to drive the sliding bases on the two sides to stably slide along the linear guide rail, so that the electric screwdriver shaft drives the screwdriver head rod to accurately and stably move, the screwdriver head rod can be accurately clamped into a screw, meanwhile, the electric screwdriver shaft and the screwdriver head rod are connected in an inserted mode through the butt-joint block and the inserting block, and the electric screwdriver shaft and the screwdriver head rod can be accurately clamped into the screw. And a limiting assembly component is mounted on the outer side of the screwdriver head rod, so that the locking effect is improved, and vertical locking of the screwdriver head rod is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric screwdrivers, and in particular relates to a screw locking electric screwdriver driven by an industrial robot. Background Art

[0002] An electric screwdriver, also known as an electric screwdriver or an electric screwdriver, is an electric tool used to tighten and loosen screws and nuts. It is mainly used for assembling parts and is one of the essential tools for most manufacturing companies. In actual use, the existing electric screwdriver can be driven by directly installing the electric screwdriver on the mechanical arm of an industrial robot to achieve automatic operation. Since the screws required to be locked in the production process are often of different specifications, corresponding screw bits of different specifications are required to lock screws of different specifications. Therefore, the screw bits need to be replaced frequently. In the prior art, when replacing the screw bit, due to the single locking structure, it cannot be guaranteed that the screw bit rod is locked vertically every time, affecting the subsequent use effect. In addition, the existing electric screwdriver cannot move accurately and stably, so that the screw bit cannot be accurately inserted into the screw, affecting its use. Utility Model Content

[0003] In view of the problems raised by the above background technology, the purpose of the utility model is to provide an electric screwdriver driven by an industrial robot.

[0004] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0005] An industrial robot-driven screw-locking electric screwdriver comprises a fixing frame connected to the industrial robot, the fixing frame is connected to an installation box, a cylinder is installed on one side of the top of the installation box, a locking block is connected to the power output end of the cylinder, the locking block is connected to a movable seat, slide seats are installed on both sides of the movable seat, the slide seat is slidably connected to a linear guide rail, the linear guide rail is installed on the inner wall of the installation box, a driving motor is installed at the top center of the movable seat, a connecting plug is connected to the power output end of the driving motor, the connecting plug is connected to an electric screwdriver shaft, a screwdriver bit rod is connected to the bottom of the electric screwdriver shaft, the bottom of the screwdriver bit rod passes through the installation box and extends to the lower side thereof, and a limited position assembly component is installed at the connection between the electric screwdriver shaft and the screwdriver bit rod;

[0006] An upper anti-rotation block in a directional structure is provided at the bottom of the electric screwdriver shaft, the upper anti-rotation block is provided with an upper limit hole, an upper connecting column is connected to the bottom of the upper anti-rotation block, and the upper connecting column is connected to a docking block in a concave structure;

[0007] A lower anti-rotation block in a directional structure is provided on the top of the bit rod, the lower anti-rotation block is provided with a lower limit hole, the top of the lower anti-rotation block is connected with a lower connecting column, and the lower connecting column is connected with a plug-in block in an outward convex structure.

[0008] It is further defined that the limit assembly assembly includes two limit seats, the size, structure and shape of the two limit seats are the same, the upper and lower sides of the limit seat are provided with anti-rotation grooves, the middle part of the limit seat is provided with an assembly connection groove, a clamping groove is provided between the assembly connection groove and the anti-rotation groove, the limit seat is provided with pin holes on both sides of the anti-rotation groove, and a limit bolt is installed in the pin hole, and one side of the limit bolt passes through the limit seat and extends to the outside thereof to connect with the limit nut. Such a structural design makes the connection between the electric screwdriver shaft and the screwdriver head rod more stable.

[0009] It is further defined that the bottom of the connecting plug is arranged in a square structure, the top of the electric screwdriver shaft is provided with a square socket, the bottom of the connecting plug is plugged into the square socket on the top of the electric screwdriver shaft, the electric screwdriver shaft is provided with threaded holes on four sides of the square socket, a compression screw is installed in the threaded hole, and one side of the compression screw is compressed on the bottom of the connecting plug. Such a structural design improves the strength of the connection and prevents it from falling off.

[0010] It is further defined that the mounting box is provided with a bearing at the position where the screwdriver bit rod passes through, and the screwdriver bit rod is arranged in the bearing. Such a structural design can not only stabilize the rotation, but also ensure the rotation accuracy.

[0011] It is further defined that the top of the installation box is provided with an air-avoiding groove at the location corresponding to the drive motor, and a protective shell is also installed on the top of the installation box, and the cylinder and the drive motor are both arranged on the inner side of the protective shell. Such a structural design prevents the drive motor from interfering with each other when moving, and the protective shell can also protect the cylinder and the drive motor.

[0012] The beneficial effects of the utility model are as follows: the utility model drives the movable seat by the cylinder to drive the slide seats on both sides to slide stably along the linear guide rail, so that the electric screwdriver shaft drives the screwdriver bit rod to move accurately and stably, so that the screwdriver bit rod can be accurately inserted into the screw, thereby improving the use effect; at the same time, the electric screwdriver shaft and the screwdriver bit rod are connected by the docking block and the plug-in block, and a limit assembly component is installed on the outside thereof, thereby improving the locking effect and ensuring the vertical locking of the screwdriver bit rod so that it does not affect the use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0014] Figure 1 This is a structural schematic diagram of an electric screwdriver driven by an industrial robot according to an embodiment of the utility model;

[0015] Figure 2 This is a schematic cross-sectional structure diagram of an electric screwdriver driven by an industrial robot according to an embodiment of the utility model;

[0016] Figure 3This is a schematic diagram of the structure of an electric screwdriver shaft of an electric screwdriver driven by an industrial robot according to an embodiment of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of a screwdriver bit rod of an electric screwdriver driven by an industrial robot according to an embodiment of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of a limit seat of a screwdriver driven by an industrial robot according to an embodiment of the utility model;

[0019] The main component symbols are described as follows:

[0020] Fixed frame 1, installation box 2, cylinder 3, locking block 4, movable seat 5, slide seat 6, linear guide 7, drive motor 8, connecting plug 9, electric screwdriver shaft 10, screwdriver head rod 11, limit assembly component 12, upper anti-rotation block 13, upper limit hole 131, upper connecting column 14, docking block 15, lower anti-rotation block 16, lower limit hole 161, lower connecting column 17, plug-in block 18, limit seat 19, anti-rotation groove 21, assembly connecting groove 22, card slot 23, pin hole 24, limit bolt 25, limit nut 26, extrusion screw 27, bearing 28, air avoidance groove 29, protective shell 30. DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0022] Embodiment 1, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an industrial robot-driven screw-locking electric screwdriver, a fixing frame 1 is connected to an installation box 2, a cylinder 3 is installed on one side of the top of the installation box 2, a locking block 4 is connected to the power output end of the cylinder 3, the locking block 4 is connected to a movable seat 5, slide seats 6 are installed on both sides of the movable seat 5, the slide seat 6 is slidably connected to a linear guide 7, the linear guide 7 is installed on the inner wall of the installation box 2, a driving motor 8 is installed at the top center of the movable seat 5, a connecting plug 9 is connected to the power output end of the driving motor 8, the connecting plug 9 is connected to an electric screwdriver shaft 10, a screwdriver bit rod 11 is connected to the bottom of the electric screwdriver shaft 10, the bottom of the screwdriver bit rod 11 passes through the installation box 2 and extends to the lower side thereof, and a limited position assembly component 12 is installed at the connection between the electric screwdriver shaft 10 and the screwdriver bit rod 11;

[0023] The bottom of the electric screwdriver shaft 10 is provided with an upper anti-rotation block 13 in a directional structure, the upper anti-rotation block 13 is provided with an upper limit hole 131, the bottom of the upper anti-rotation block 13 is connected to an upper connecting column 14, and the upper connecting column 14 is connected to a docking block 15 in a concave structure;

[0024] A lower anti-rotation block 16 with a directional structure is provided at the top of the screwdriver bit rod 11. The lower anti-rotation block 16 has a lower limit hole 161. The top of the lower anti-rotation block 16 is connected to a lower connecting column 17. The lower connecting column 17 is connected to a plug-in block 18 with a convex structure.

[0025] In this embodiment, when in use, the industrial robot drives the fixing frame 1, the fixing frame 1 drives the installation box 2, the installation box 2 drives the screwdriver bit rod 11, and when moving to the working position, the cylinder 3 is started to make the cylinder 3 push the locking block 4, the locking block 4 pushes the movable seat 5, and the movable seat 5 drives the slide seats 6 on both sides to slide stably along the linear guide rail 7, so that the movable seat 5 drives the driving motor 8, the driving motor 8 drives the connecting plug 9, the connecting plug 9 drives the electric screwdriver shaft 10, and the electric screwdriver shaft 10 drives the screwdriver bit rod 11 to move accurately and stably, so that the screwdriver bit rod 11 can be accurately stuck in the screw and moved to the specified position, and then the driving motor 8 is started, the driving motor 8 drives the connecting plug 9, and the connecting plug 9 drives The electric screwdriver shaft 10 drives the screwdriver bit rod 11 to rotate. When the screwdriver bit rod 11 needs to be replaced later, open the installation box 2, remove the limit assembly component 12 from the electric screwdriver shaft 10 and the screwdriver bit rod 11, and then pull the screwdriver bit rod 11 downward to make the screwdriver bit rod 11 drive the lower anti-rotation block 16, and the lower anti-rotation block 16 drives the lower connecting column 17, and the lower connecting column 17 drives the plug-in block 18 to leave the connection with the docking block 15, and then insert the new screwdriver bit rod 11 into the installation box 2 again, and plug the plug-in block 18 on its top into the docking block 15. Through the plug-in block 18 and the docking block 15, it can ensure that the screwdriver bit rod 11 can be locked vertically, and install the limit assembly component 12 to complete the connection and fixation.

[0026] Embodiment 2, as Figure 2 and Figure 5 As shown, this embodiment adds the following structure on the basis of embodiment 1, the limit assembly component 12 includes two limit seats 19, the size, structure and shape of the two limit seats 19 are the same, the upper and lower sides of the limit seat 19 are provided with anti-rotation grooves 21, the middle part of the limit seat 19 is provided with an assembly connecting groove 22, and a clamping groove 23 is provided between the assembly connecting groove 22 and the anti-rotation groove 21, the limit seat 19 is provided with pin holes 24 on both sides of the anti-rotation groove 21, and a limit bolt 25 is installed in the pin hole 24, and one side of the limit bolt 25 passes through the limit seat 19 and extends to its outer side to connect with a limit nut 26.

[0027] 16, and the upper and lower limit holes 131 and 161 are aligned with each other.

[0028] Embodiment 3, as Figure 2 As shown, this embodiment adds the following structure on the basis of Embodiment 1: the bottom of the connecting plug 9 is arranged in a square structure, the top of the electric screwdriver shaft 10 is provided with a square socket, the bottom of the connecting plug 9 is inserted into the square socket on the top of the electric screwdriver shaft 10, the electric screwdriver shaft 10 is provided with threaded holes on four sides of the square socket, and an extrusion screw 27 is installed in the threaded hole, and one side of the extrusion screw 27 is squeezed on the bottom of the connecting plug 9.

[0029] In this embodiment, after the bottom of the connecting plug 9 is inserted into the top of the electric screwdriver shaft 10, the squeezing screws 27 on the four sides are rotated to move inward along the threaded holes and squeeze on the connecting plug 9, so that the connecting plug 9 and the electric screwdriver shaft 10 are fixedly connected to ensure the strength of the connection and prevent it from falling off.

[0030] Embodiment 4, as Figure 2 As shown, this embodiment adds the following structure on the basis of the embodiment 1: the mounting box 2 is provided with a bearing 28 at the position where the screwdriver bit rod 11 passes through, and the screwdriver bit rod 11 is arranged in the bearing 28 .

[0031] In this embodiment, when in use, the bit rod 11 can rotate along the bearing 28, so that the bit rod 11 can rotate stably while ensuring the rotation accuracy.

[0032] Embodiment 5, as Figure 2 As shown, this embodiment adds the following structure on the basis of embodiment 1: an air avoidance groove 29 is provided on the top of the installation box 2 corresponding to the drive motor 8, and a protective shell 30 is also installed on the top of the installation box 2, and the cylinder 3 and the drive motor 8 are both arranged on the inner side of the protective shell 30.

[0033] In this embodiment, when in use, the movable seat 5 is prevented from driving the driving motor 8 to interfere with the installation box 2 when moving, and the protective shell 30 can also protect the cylinder 3 and the driving motor 8.

[0034] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the technology may modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the relevant technical field 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. An electric screwdriver driven by an industrial robot, comprising a fixing frame (1) connected to the industrial robot, wherein the fixing frame (1) is connected to a mounting box (2), characterized in that: A cylinder (3) is installed on one side of the top of the installation box (2), a locking block (4) is connected to the power output end of the cylinder (3), the locking block (4) is connected to a movable seat (5), slide seats (6) are installed on both sides of the movable seat (5), the slide seats (6) are slidably connected to linear guide rails (7), the linear guide rails (7) are installed on the inner wall of the installation box (2), a driving motor (8) is installed at the top center of the movable seat (5), a connecting plug (9) is connected to the power output end of the driving motor (8), the connecting plug (9) is connected to an electric screwdriver shaft (10), the bottom of the electric screwdriver shaft (10) is connected to a screwdriver bit rod (11), the bottom of the screwdriver bit rod (11) passes through the installation box (2) and extends to the lower side thereof, and a limited position assembly component (12) is installed at the connection between the electric screwdriver shaft (10) and the screwdriver bit rod (11); An upper anti-rotation block (13) arranged in a directional structure is provided at the bottom of the electric screwdriver shaft (10), the upper anti-rotation block (13) is provided with an upper limit hole (131), an upper connecting column (14) is connected to the bottom of the upper anti-rotation block (13), and the upper connecting column (14) is connected to a docking block (15) arranged in a concave structure; A lower anti-rotation block (16) arranged in a directional structure is provided at the top of the screwdriver bit rod (11), the lower anti-rotation block (16) is provided with a lower limit hole (161), the top of the lower anti-rotation block (16) is connected to a lower connecting column (17), and the lower connecting column (17) is connected to a plug-in block (18) arranged in an outward convex structure.

2. The industrial robot-driven screwdriver according to claim 1, characterized in that: The limit assembly component (12) comprises two limit seats (19), the two limit seats (19) are of the same size, structure and shape, the limit seats (19) are provided with anti-rotation grooves (21) on the upper and lower sides, the limit seats (19) are provided with assembly connection grooves (22) in the middle, a clamping groove (23) is provided between the assembly connection grooves (22) and the anti-rotation grooves (21), the limit seats (19) are provided with pin holes (24) on both sides of the anti-rotation grooves (21), a limit bolt (25) is installed in the pin hole (24), one side of the limit bolt (25) passes through the limit seat (19) and extends to the outside thereof to connect with the limit nut (26).

3. The industrial robot-driven screwdriver according to claim 2, characterized in that: The bottom of the connecting plug (9) is arranged in a square structure, the top of the electric screwdriver shaft (10) is provided with a square socket, the bottom of the connecting plug (9) is plugged into the square socket at the top of the electric screwdriver shaft (10), the electric screwdriver shaft (10) is provided with threaded holes on four sides of the square socket, an extrusion screw (27) is installed in the threaded hole, and one side of the extrusion screw (27) is extruded on the bottom of the connecting plug (9).

4. The industrial robot-driven screwdriver according to claim 3, characterized in that: The installation box (2) is provided with a bearing (28) at the position where the screwdriver bit rod (11) passes through, and the screwdriver bit rod (11) is arranged in the bearing (28).

5. The industrial robot-driven screwdriver according to claim 4, characterized in that: The top of the installation box (2) is provided with an air avoidance groove (29) at a position corresponding to the drive motor (8), and a protective shell (30) is also installed on the top of the installation box (2), and the cylinder (3) and the drive motor (8) are both arranged on the inner side of the protective shell (30).

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