CN209125274U - A flexible screw automatic suction locking device - Google Patents

Abstract

The utility model discloses a kind of flexible screw automatic sucking locking apparatus, including electric screw driver, screw absorption heads, screwdriver buffer gear, the electric screw driver is the main working parts of automatic sucking locking apparatus, the electric screw driver includes: screw driver handle, torsion adjusting knob, screwdriver bit, torsion graduated scale, power supply line, the screwdriver buffer gear is the foundation connection of automatic sucking locking apparatus, the screwdriver buffer gear includes: mechanism fixed plate, buffer gear drives cylinder, sliding block, buffer spring, electric screw driver fixed plate, cylinder limited block, the screw absorption heads are the core of automatic sucking locking apparatus, and it is arranged below the electric screw driver, the screw absorption heads include: screw copying support, gas-tpe fitting, screwdriver bit hole.Screw absorption heads are evacuated by cylinder operation, and then adsorb screw, then screw is locked screw hole by electric screw driver, complete to lock.

Description

A flexible screw automatic suction locking device

technical field

The utility model relates to the field of automatic assembly, in particular to a flexible screw automatic sucking and locking device.

Background technique

In the assembly of small automatic welding machines, medium automatic welding machines, radiators and other parts, screw assembly locking is the most commonly used fixing method. Therefore, in the assembly process of these products, locking screws has become a basic operation. . At present, most of the assembly and locking of small and medium-sized welding machines are manually manual locking. Because the screw locking itself is repetitive work, small in size and many types, it is not easy to take and place manually during the assembly and locking process, which is easy to cause The bumping or scratching of the welding machine during the assembly process leads to low production efficiency, unstable product quality, and high labor intensity, especially for small electronic products, which have extremely high requirements for operators.

Utility model content

In order to overcome the above shortcomings, the purpose of the present invention is to provide a flexible screw automatic sucking and locking device.

In order to achieve the above purpose, the technical scheme adopted by the present invention is: a flexible screw automatic suction and locking device, comprising an electric screwdriver and a screwdriver buffer mechanism, the electric screwdriver is arranged on the screwdriver buffer mechanism, and is characterized in that: the flexible screw automatically The suction device further includes a screw suction head, the screw suction head includes: a screw profiling bracket and a tracheal joint, the screw suction head is connected with the screwdriver buffer mechanism through the screw profiling bracket, and the screw profiling bracket is provided with a bit head The bit hole of the electric screwdriver is placed in the bit hole, the trachea joint is arranged on one side of the bit hole, and communicates with the bit hole to form a gas channel, and the trachea joint is evacuated from the outside through the trachea device connection.

Preferably, the screwdriver buffer mechanism includes: a mechanism fixing plate, a buffer mechanism driving cylinder, a slider, a buffer spring, and an electric screwdriver fixing plate, and the mechanism fixing plate includes a horizontal plate and a vertical plate that are vertically connected. The side is connected with the assembly robot, the buffer mechanism driving cylinder is arranged on the horizontal plate, the other side of the vertical plate is arranged with a sliding rail, and the sliding block is arranged on the sliding rail, and the sliding block is provided with a connection The connecting plate is located above the electric screwdriver fixing plate and is parallel to each other, and the buffer spring is arranged between the connecting plate and the electric screwdriver fixing plate, and its extending direction is parallel to the slide rail.

Preferably, a cylinder limit block is arranged below the slide rail, and the cylinder limit block is fixedly connected with the vertical plate of the mechanism fixing plate.

Preferably, a rubber pad is arranged on the cylinder limit block to ensure that the slider will not slide out of the slide rail during the sliding process, protect the slider, and reduce noise.

Preferably, two buffer springs are provided, which are respectively provided at the corners of the electric screwdriver fixing plate. It is used to give the electric screwdriver an outward thrust to ensure the close contact between the bit and the flexible screw and prevent slippage.

Preferably, an annular groove is arranged in the bit hole, and an O-ring is arranged in the annular groove. The setting of the O-ring can ensure the tight combination of the bit head and the bit head hole, and ensure the sealing of the vacuum environment in the bit head hole when the buffer mechanism drives the cylinder to work, which is convenient for better suction of the screw head.

Preferably, a flexible screw tube is arranged below the bit hole, and when the air inside the bit is drawn away by the cylinder driven by the buffer mechanism, the flexible screw tube can absorb the flexible screw in time.

Preferably, the electric screwdriver fixing plate is made of two semicircular plates, the larger semicircular plate is connected to the lower end of the buffer spring, and the smaller semicircular plate is passed through the screws arranged on the side of the plate. Connect with the larger plate to form a complete circular hole that matches the shape of the electric screwdriver. A circular hole is provided between the torque adjustment knob and the torque scale. Therefore, the electric screwdriver fixing plate can achieve the purpose of fixing the electric screwdriver.

The beneficial effect of the flexible screw automatic suction locking device of the present invention is that due to the vacuum adsorption principle adopted as a whole, the device can be adapted to the locking of various parts and components. When the parts of the mechanical equipment need to be locked, The whole device is fixed on the robot through the mechanism fixing plate. With the movement of the robot, the flexible screw is automatically sucked and the locking device is moved to the relevant position, and then the air is extracted through the air cylinder, resulting in the emergence of a vacuum environment in the bit hole. Through the flexible screw The channel absorbs the screw, the robot moves to the corresponding position, and then the electric screwdriver moves downward, the bit head contacts the screw cap, and the electric screwdriver runs to complete a lock. Repeating the work in turn to complete the locking of all parts can achieve the purpose of liberating labor, thereby preventing bumps or scratches during manual assembly, improving production efficiency and improving product quality.

Description of drawings

FIG. 1 is a schematic structural diagram of a flexible screw automatic suction and locking device.

FIG. 2 is a schematic structural diagram of an electric screwdriver.

FIG. 3 is a schematic diagram of the structure of the screw suction head.

FIG. 4 is a schematic structural diagram of a screwdriver buffer mechanism.

In the picture:

1- screwdriver handle; 2- torque adjustment knob; 3- batch head; 4- torque scale; 5- power cord;

6-screw profiling bracket; 7-trachea joint; 8-bit hole; 9-flexible screw channel;

10-Mechanism fixing plate; 11-Buffer mechanism driving cylinder; 12-Slider; 13-Buffer spring; 14-Electric screwdriver fixing plate; 15-Cylinder limit block; 16-Connecting plate; 17-Slide rail.

Detailed ways

The preferred embodiments of the present utility model will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, so that the protection scope of the present utility model can be more clearly defined. .

Referring to Figures 1-4, a flexible screw automatic suction locking device in this embodiment includes an electric screwdriver, a screw suction head, and a screwdriver buffer mechanism. The electric screwdriver is the main part of the flexible screw automatic suction locking device. In the working part, the electric screwdriver includes: a screwdriver handle 1 , a torque adjustment knob 2 , a batch head 3 , a torque scale 4 , and a power cord 5 .

When the parts of the mechanical equipment need to be locked, the entire equipment is fixed on the end flange of the six-axis robot or the fixed block at the end of the four-axis robot or the three-axis mechanical structure through the mechanism fixing plate 10. With the movement of the robot, the flexible screws The automatic suction and locking device moves to the relevant position, that is, above the screw feeding port. At this time, the flexible screw channel 9 of the screw suction head is facing the screw, and then the buffer mechanism drives the cylinder 11 to start working, and the inside of the screw suction head is drawn into a vacuum state through the trachea. The screw located below is naturally adsorbed to the flexible screw channel 9, and then the robot moves to the relevant position that requires mechanical equipment to be locked. The buffer mechanism drives the cylinder 11 to start deflation, the vacuum environment in the screw suction head is destroyed, and the screw automatically falls into the At the relevant position, the electric screwdriver starts to work at this time, lock the screw into the screw hole, and complete the one-time locking; repeat the work in turn to complete the locking of all parts.

During operation, the bit 3 is placed in the bit hole 8, and there may be a gap in the middle, which affects the sealing performance, so an annular groove is arranged in the bit hole 8, and an O-shaped groove is arranged in the annular groove. lock up. The setting of the O-ring can ensure the tight combination of the bit 3 and the bit hole 8, and ensure the tightness of the vacuum environment in the bit hole 8 when the buffer mechanism drives the cylinder 11 to work, which is convenient for better suction of the screw head.

During operation, the sliding block 12 may slide out of the sliding rail 17, so a cylinder limit block 15 is arranged under the sliding rail 17, and the sliding block 12 and the cylinder limit block 15 may also be damaged due to collision. A rubber pad is arranged on the cylinder limit block 15 to ensure that the slider 12 does not slide out of the slide rail 17 during the sliding process, protect the slider 12 and reduce noise.

During operation, there may be slippage between the bit 3 of the electric screwdriver and the nut of the screw, resulting in a decrease in the overall efficiency. Therefore, two buffer springs 13 are provided at the corners of the electric screwdriver fixing plate 14 to give An outward thrust of the electric screwdriver ensures the close contact between the bit 3 and the flexible screw to prevent slippage, which not only improves work efficiency but also improves product quality.

The above embodiment is only to illustrate the technical concept and characteristics of the present invention, and its purpose is to let those who are familiar with this technology understand the content of the present invention and implement it, and cannot limit the protection scope of the present invention by this. Equivalent changes or modifications made in the spirit of the utility model shall all be included within the protection scope of the present utility model.

Claims (8)

1. a flexible screw automatic suction locking device, comprising an electric screwdriver, a screwdriver buffer mechanism, the electric screwdriver is arranged on the screwdriver buffer mechanism, it is characterized in that: the flexible screw automatic suction device also includes a screw suction head, the screw suction The head comprises: a screw profiling bracket (6) and a tracheal joint (7), the screw suction head is connected with the screwdriver buffer mechanism through the screw profiling bracket (6), and the screw profiling bracket (6) is provided with a bit head Hole (8), the bit (3) of the electric screwdriver is placed in the bit hole (8), and the gas pipe joint (7) is arranged on one side of the bit hole (8), and is connected with the bit hole (8). 8) Connect to form a gas channel, and the gas pipe joint (7) is connected to an external vacuuming device through a gas pipe. 2. The flexible screw automatic suction and locking device according to claim 1, wherein the screwdriver buffer mechanism comprises: a mechanism fixing plate (10), a buffer mechanism driving cylinder (11), a slider (12) , a buffer spring (13), an electric screwdriver fixing plate (14), the mechanism fixing plate (10) includes a horizontal plate and a vertical plate connected vertically, one side of the vertical plate is connected with the assembly robot, and the buffer mechanism drives the cylinder (11) is arranged on the horizontal plate, a slide rail (17) is arranged on the other side of the vertical plate, the end of the telescopic rod of the air cylinder (11) is connected with the slider (12), and the slider (12) In sliding cooperation with the sliding rail (17), the sliding block (12) is provided with a connecting plate (16), the connecting plate (16) is located above the electric screwdriver fixing plate (14), and the connecting plate (16) ), the electric screwdriver fixing plate (14) is parallel to the horizontal plane, the buffer spring (13) is arranged between the connecting plate (16) and the electric screwdriver fixing plate (14), and its extending direction is parallel to the slide rail (17) . 3. A flexible screw automatic suction and locking device according to claim 2, characterized in that: a cylinder limit block (15) is arranged under the slide rail (17), and the cylinder limit block (15) ) is fixedly connected with the vertical plate of the mechanism fixing plate (10). 4. A flexible screw automatic suction and locking device according to claim 3, characterized in that: a rubber pad is arranged on the cylinder limit block (15), and the rubber pad is arranged near the slide rail (17) side. 5. A flexible screw automatic suction and locking device according to claim 2, characterized in that: the buffer springs (13) are provided with two, which are respectively provided at the corners of the electric screwdriver fixing plate (14). place. 6. A flexible screw automatic suction and locking device according to claim 1, characterized in that: an annular groove is arranged in the bit hole (8), and an O-ring is arranged in the annular groove . 7 . The automatic suction and locking device for flexible screws according to claim 1 , wherein a flexible screw tube ( 9 ) is arranged below the bit hole ( 8 ). 8 . 8. A flexible screw automatic sucking and locking device according to claim 1, characterized in that: the electric screwdriver fixing plate (14) is two semicircular plates large and small, the larger semicircular plate Connected with the lower end of the buffer spring (13), the smaller semicircular plate is connected with the larger semicircular plate to form a complete circular hole matching the shape of the electric screwdriver.