Automatic screw tightening equipment

Abstract

The utility model relates to automatic screw tightening equipment which comprises a supporting frame, a lifting driving mechanism, a screw tightening mechanism and a feeding mechanism are arranged on the supporting frame, the lifting driving mechanism is installed on the supporting frame, and the driving end of the lifting driving mechanism is connected with the screw tightening mechanism. The lifting driving mechanism is used for driving the screw tightening mechanism to suck and tighten screws on the feeding mechanism, the screw tightening mechanism comprises a mounting base, an electric screwdriver, a sliding block and a screw suction nozzle, the electric screwdriver is mounted on the mounting base, and the sliding block is connected with the mounting base through an elastic assembly; the sliding block is in sliding fit with the driving end of the lifting driving mechanism, the screw suction nozzle is installed on the sliding block and located below the electric screwdriver, the screw suction nozzle is used for sucking screws of the feeding mechanism, and the rotating end of the electric screwdriver extends into the screw suction nozzle and tightens the screws on the screw suction nozzle. The screw tightening equipment is simple in structure, convenient to operate, flexible to adjust and stable in tightening effect.

Description

Technical Field

[0001] This utility model relates to the field of automated assembly technology, and in particular to an automated screw tightening device. Background Technology

[0002] With the development of automation technology, automated screw tightening equipment has gradually replaced manual operation, improving production efficiency and assembly quality. However, the equipment still has problems such as complex structure and cumbersome operation steps, insufficient coordination accuracy between the feeding mechanism and the tightening mechanism, and insufficient flexibility in equipment adjustment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an automated screw tightening device, which has a simple structure, convenient operation, flexible adjustment, and stable tightening effect.

[0004] The technical solution adopted by this utility model to solve its technical problem is: an automated screw tightening device, including a support frame, on which a lifting drive mechanism, a screw tightening mechanism and a feeding mechanism for feeding screws are arranged. The lifting drive mechanism is installed on the support frame, and the driving end of the lifting drive mechanism is connected to the screw tightening mechanism. The screw tightening mechanism is located above the feeding mechanism. The lifting drive mechanism is used to drive the screw tightening mechanism to pick up and tighten the screws on the feeding mechanism.

[0005] The screw tightening mechanism includes a mounting base, an electric screwdriver, a sliding block, and a screw suction nozzle. The electric screwdriver is mounted on the mounting base, the sliding block is connected to the mounting base via an elastic component, the sliding block slides in cooperation with the drive end of the lifting drive mechanism, and the screw suction nozzle is mounted on the sliding block and located below the electric screwdriver. The screw suction nozzle is used to pick up screws from the feeding mechanism, and the rotating end of the electric screwdriver extends into the screw suction nozzle and tightens the screws on the screw suction nozzle.

[0006] In one embodiment, the feeding mechanism of the automated screw tightening equipment includes a feeding component, a positioning component, and a limiting component. The positioning component is provided with a positioning groove for positioning the screw, and the positioning groove of the positioning component is connected to the output end of the feeding component. The limiting component is used to limit the screw on the output end of the feeding component.

[0007] In one embodiment, the feeding assembly of the automated screw tightening device includes a linear vibrator and a pressure plate. The linear vibrator is provided with a feeding groove for feeding screws, and the pressure plate is installed above the linear vibrator to position the top of the screw.

[0008] In one embodiment, the limiting component of the automated screw tightening device includes two limiting cylinders, which are respectively installed on both sides of the output end of the feeding component. Limiting plates are provided on the driving ends of the two limiting cylinders, and the two limiting cylinders are used to drive the two limiting plates to limit the screws on the output end of the feeding component.

[0009] In one embodiment, the positioning component of the automated screw tightening device includes a positioning block and a connecting seat. One end of the positioning block is hinged to the connecting seat, and the positioning groove is disposed at the other end of the positioning block and docks with the output end of the feeding component. A spring assembly is disposed between the positioning block and the connecting seat, and the spring assembly is used to press the positioning block onto the connecting seat.

[0010] In one embodiment, the lifting drive mechanism of the automated screw tightening device includes a motor, a lead screw, a bearing housing, and a sliding part. The motor and the bearing housing are mounted on a support frame, with the bearing housing located below the motor. The drive end of the motor is connected to the lead screw, and the lead screw is rotatably connected to the bearing housing. The sliding part is threadedly connected to the lead screw, and one end of the sliding part is slidably engaged with the support frame. The motor drives the lead screw to rotate, and the sliding part moves up and down along the lead screw, thereby driving the mounting base to move up and down.

[0011] In one embodiment, the elastic component of the automated screw tightening device includes two guide posts, one end of which is symmetrically mounted on a sliding block, and the other end of which passes through a mounting base and slides with the mounting base. A spring is provided on the guide post, one end of which abuts against the sliding block, and the other end of which abuts against the mounting base.

[0012] The beneficial effects of this application are as follows:

[0013] This application provides an automated screw tightening device. This device, through the coordinated operation of a support frame, a lifting drive mechanism, a screw tightening mechanism, and a feeding mechanism, achieves precise screw feeding, picking up, and tightening. This automated screw tightening device is not only simple in structure and flexible in adjustment, but also provides stable tightening results.

[0014] This automated screw tightening equipment uses a lifting drive mechanism, which enables precise lifting of the screw tightening mechanism, improves adjustment flexibility, and can be used to assemble workpieces of different heights.

[0015] This automated screw tightening equipment uses a screw suction nozzle and an electric screwdriver to achieve automatic screw picking and tightening, improving work efficiency and consistency.

[0016] The feeding mechanism of this automated screw tightening equipment uses a combination of feeding components, positioning components, and limit components to ensure stable screw delivery and accurate positioning, avoiding problems such as screw failure to be picked up or positional deviation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an automated screw tightening device according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the lifting drive mechanism and the screw tightening mechanism of the automated screw tightening device according to an embodiment of this application;

[0019] Figure 3 This is a schematic diagram from one perspective of the feeding mechanism of an automated screw tightening device according to an embodiment of this application;

[0020] Figure 4 This is a schematic diagram from one perspective of the feeding mechanism of an automated screw tightening device according to an embodiment of this application;

[0021] in:

[0022] 1. Support frame; 2. Lifting drive mechanism; 3. Screw tightening mechanism; 4. Feeding mechanism; 21. Motor; 22. Lead screw; 23. Sliding part; 24. Bearing seat; 31. Mounting seat; 32. Electric screwdriver; 33. Sliding block; 34. Screw suction nozzle; 35. Elastic component; 351. Guide column; 352. Spring; 41. Feeding assembly; 42. Positioning assembly; 43. Limiting assembly; 44. Positioning groove; 411. Straight vibration; 412. Pressure plate; 413. Feeding groove; 421. Positioning block; 422. Connecting seat; 423. Spring assembly; 431. Limiting cylinder; 432. Limiting plate. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, an embodiment of this application provides an automated screw tightening device, including a support frame 1. The support frame 1 is provided with a lifting drive mechanism 2, a screw tightening mechanism 3, and a feeding mechanism 4 for feeding screws. The lifting drive mechanism 2 is mounted on the support frame 1, and the drive end of the lifting drive mechanism 2 is connected to the screw tightening mechanism 3. The screw tightening mechanism 3 is located above the feeding mechanism 4. The lifting drive mechanism 2 is used to drive the screw tightening mechanism 3 to pick up and tighten the screws on the feeding mechanism 4.

[0025] like Figure 2As shown, the screw tightening mechanism 3 includes a mounting base 31, an electric screwdriver 32, a sliding block 33, and a screw suction nozzle 34. The electric screwdriver 32 is mounted on the mounting base 31. The sliding block 33 is connected to the mounting base 31 through an elastic component 35. The sliding block 33 slides in cooperation with the driving end of the lifting drive mechanism 2. The screw suction nozzle 34 is mounted on the sliding block 33 and located below the electric screwdriver 32. The screw suction nozzle 34 is used to pick up the screws from the feeding mechanism 4. The rotating end of the electric screwdriver 32 extends into the screw suction nozzle 34 and tightens the screws on the screw suction nozzle 34.

[0026] Specifically, the feeding component 41 of the feeding mechanism 4 feeds multiple screws sequentially into the positioning groove 44 of the positioning component 42, and the limiting component 43 limits the first screw located at the output end of the feeding component 41. Then, the lifting drive mechanism 2 drives the mounting base 31 of the screw tightening mechanism 3 to move the electric screwdriver 32, the sliding block 33, and the screw suction nozzle 34 downward. The screw suction nozzle 34 first picks up the screw in the positioning groove 44, and the lifting drive mechanism 2 drives the screw tightening mechanism 3 to move the screw upward. Then, the external drive mechanism drives the screw tightening device to move above the workpiece, and the lifting drive mechanism 2 drives the screw tightening mechanism 3 to move downward, so that the screw suction nozzle 34 places the screw in the assembly hole of the workpiece. Then, the lifting drive mechanism 2 continues to drive the mounting base 31 to move the electric screwdriver 32 and the screw suction nozzle 34 downward. The screw suction nozzle 34 is compressed by the elastic component 35, and the electric screwdriver 32 in the screw suction nozzle 34 presses against the screw and tightens the screw onto the workpiece.

[0027] In the above structure, the screw feeding, suction, and tightening operations are achieved through the coordinated operation of the lifting drive mechanism 2, the screw tightening mechanism 3, and the feeding mechanism 4. The lifting drive mechanism 2 enables precise lifting of the screw tightening mechanism 3, improving adjustment flexibility and allowing for the assembly of workpieces at different heights. The screw suction nozzle 34, in close cooperation with the electric screwdriver, achieves automatic screw suction and tightening, improving work efficiency and consistency. This automated screw tightening equipment features a simple structure, convenient operation, flexible adjustment, and stable tightening effect.

[0028] like Figure 3As shown, in one embodiment, the feeding mechanism 4 of the automated screw tightening device includes a feeding component 41, a positioning component 42, and a limiting component 43. The positioning component 42 is provided with a positioning groove 44 for positioning screws. The positioning groove 44 of the positioning component 42 is connected to the output end of the feeding component 41. The limiting component 43 is used to limit the screws on the output end of the feeding component 41. When the first screw in the feeding component 41 is fed into the positioning groove 44 of the positioning component 42, the limiting component 43 limits the second screw located in the feeding groove 413 to prevent the second screw from moving into the positioning groove 44, causing screw compression and positional deviation. After the first screw is picked up and removed by the screw suction nozzle 34 of the screw tightening mechanism 3, the limiting component 43 releases the second screw, causing the second screw to move into the positioning groove 44. The limiting component 43 then limits the next screw, and the operation repeats in sequence. The feeding mechanism 4, through the coordinated use of the feeding component 41, the positioning component 42 and the limiting component 43, achieves stable feeding and precise positioning of screws, thereby improving the accuracy of screw picking.

[0029] like Figure 3 and Figure 4 As shown, in one embodiment, the feeding assembly 41 of the automated screw tightening device includes a linear vibrator 411 and a pressure plate 412. The linear vibrator 411 is provided with a feeding groove 413 for feeding screws, and the pressure plate 412 is installed above the linear vibrator 411 to position the top of the screws. The linear vibrator 411 conveys multiple screws from the feeding groove 413 to the positioning groove 44 of the positioning assembly 42. The pressure plate 412, installed above the feeding groove 413 of the linear vibrator 411, positions the top of the multiple screws to prevent them from popping out upwards. This arrangement improves the screw feeding efficiency and also prevents screws from popping out from above the feeding groove 413, thus improving the stability of screw feeding.

[0030] like Figure 3 and Figure 4 As shown, in one embodiment, the limiting component 43 of the automated screw tightening device includes two limiting cylinders 431, which are respectively installed on both sides of the output end of the feeding component 41. Limiting plates 432 are provided on the driving ends of the two limiting cylinders 431. The two limiting cylinders 431 are used to drive the two limiting plates 432 to limit the screws on the output end of the feeding component 41. When the first screw on the vibrating 411 is fed into the positioning groove 44, the two limiting cylinders 431 simultaneously drive the limiting plates 432 to move horizontally towards the second screw on the vibrating 411, thereby limiting the front and rear ends of the second screw. This limiting component 43 facilitates the limiting of the screws on the output end of the vibrating 411, effectively preventing screw compression or positional displacement.

[0031] like Figure 3 and Figure 4 As shown, in one embodiment, the positioning component 42 of the automated screw tightening device includes a positioning block 421 and a connecting seat 422. One end of the positioning block 421 is hinged to the connecting seat 422. The positioning groove 44 is disposed at the other end of the positioning block 421 and mates with the output end of the feeding component 41. A spring component 423 is disposed between the positioning block 421 and the connecting seat 422, and the spring component 423 is used to press the positioning block 421 onto the connecting seat 422. When the positioning block 421 is flipped downwards, the positioning groove 44 of the positioning block 421 mates with the output end of the linear vibrator 411. When the first screw of the linear vibrator 411 moves into the positioning groove 44 of the positioning block 421, the top of the screw is located outside the positioning groove 44, and the bottom of the screw is located inside the positioning groove 44. Under the force of the spring component 423, the positioning block 421 always maintains precise alignment with the output end of the linear vibrator 411, which can prevent the positioning block 421 from moving downwards when the screw suction nozzle 34 picks up the screw. This setup enables precise screw positioning, improving screw picking efficiency and accuracy.

[0032] like Figure 2 As shown, in one embodiment, the lifting drive mechanism 2 of the automated screw tightening device includes a motor 21, a lead screw 22, a bearing seat 24, and a sliding part 23. The motor 21 and the bearing seat 24 are mounted on the support frame 1, with the bearing seat 24 located below the motor 21. The drive end of the motor 21 is connected to the lead screw 22, which is rotatably connected to the bearing seat 24. The sliding part 23 is threadedly connected to the lead screw 22, with one end of the sliding part 23 slidingly engaged with the support frame 1. The motor 21 drives the lead screw 22 to rotate, and the sliding part 23 moves up and down along the lead screw 22, causing the mounting base 31 to move up and down. The motor 21 drives the lead screw 22 to rotate, and the bottom of the lead screw 22 rotates within the bearing seat 24. The sliding part 23 moves up and down along the thread of the lead screw 22, and the sliding part 23 drives the screw tightening mechanism 3 to move up and down synchronously. This configuration facilitates precise lifting and lowering movements of the screw tightening mechanism 3.

[0033] like Figure 2As shown, in one embodiment, the elastic component 35 of the automated screw tightening device includes two guide posts 351. One end of each guide post 351 is symmetrically mounted on a sliding block 33, and the other end of each guide post 351 passes through a mounting base 31 and slides in cooperation with it. A spring 352 is mounted on each guide post 351, with one end of the spring 352 abutting against the sliding block 33 and the other end abutting against the mounting base 31. The lifting drive mechanism 2 drives the screw suction nozzle 34 to first place the sucked screw onto the workpiece. The lifting drive mechanism 2 then drives the electric screwdriver 32 to move downwards and perform the screw tightening operation. The screw suction nozzle 34 is compressed by the spring 352, which acts as a buffer for the screw suction nozzle 34. The elastic component 35 provides a buffer for screw tightening, preventing damage to the screw or equipment caused by rigid contact.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An automated screw tightening device, characterized in that, Includes a support frame (1), on which a lifting drive mechanism (2), a screw tightening mechanism (3), and a feeding mechanism (4) for feeding screws are provided. The lifting drive mechanism (2) is installed on the support frame (1), and the driving end of the lifting drive mechanism (2) is connected to the screw tightening mechanism (3). The screw tightening mechanism (3) is located above the feeding mechanism (4). The lifting drive mechanism (2) is used to drive the screw tightening mechanism (3) to pick up and tighten the screws on the feeding mechanism (4). The screw tightening mechanism (3) includes a mounting base (31), an electric screwdriver (32), a sliding block (33), and a screw suction nozzle (34). The electric screwdriver (32) is mounted on the mounting base (31). The sliding block (33) is connected to the mounting base (31) through an elastic component (35). The sliding block (33) is slidably engaged with the driving end of the lifting drive mechanism (2). The screw suction nozzle (34) is mounted on the sliding block (33) and located below the electric screwdriver (32). The screw suction nozzle (34) is used to pick up the screws from the feeding mechanism (4). The rotating end of the electric screwdriver (32) extends into the screw suction nozzle (34) and tightens the screws on the screw suction nozzle (34). The feeding mechanism (4) includes a feeding component (41), a positioning component (42), and a limiting component (43). The positioning component (42) is provided with a positioning groove (44) for positioning the screw. The positioning groove (44) of the positioning component (42) is connected to the output end of the feeding component (41). The limiting component (43) is used to limit the screw on the output end of the feeding component (41).

2. The automated screw tightening device according to claim 1, characterized in that, The feeding assembly (41) includes a linear vibrator (411) and a pressure plate (412). The linear vibrator (411) is provided with a feeding groove (413) for feeding screws. The pressure plate (412) is installed above the linear vibrator (411) and is used to position the top of the screw.

3. The automated screw tightening device according to claim 1, characterized in that, The limiting component (43) includes two limiting cylinders (431), which are respectively installed on both sides of the output end of the feeding component (41). Limiting plates (432) are provided on the driving ends of the two limiting cylinders (431). The two limiting cylinders (431) are used to drive the two limiting plates (432) to limit the screws on the output end of the feeding component (41).

4. The automated screw tightening device according to claim 1, characterized in that, The positioning component (42) includes a positioning block (421) and a connecting seat (422). One end of the positioning block (421) is hinged to the connecting seat (422). The positioning groove (44) is provided at the other end of the positioning block (421) and is connected to the output end of the feeding component (41). A spring assembly (423) is provided between the positioning block (421) and the connecting seat (422). The spring assembly (423) is used to press the positioning block (421) onto the connecting seat (422).

5. The automated screw tightening device according to claim 1, characterized in that, The lifting drive mechanism (2) includes a motor (21), a lead screw (22), a bearing seat (24), and a sliding part (23). The motor (21) and the bearing seat (24) are mounted on the support frame (1). The bearing seat (24) is located below the motor (21). The driving end of the motor (21) is connected to the lead screw (22). The lead screw (22) is rotatably connected to the bearing seat (24). The sliding part (23) is threadedly connected to the lead screw (22). One end of the sliding part (23) is slidably engaged with the support frame (1). The motor (21) is used to drive the lead screw (22) to rotate. The sliding part (23) moves up and down along the lead screw (22). The sliding part (23) drives the mounting base (31) to move up and down.

6. The automated screw tightening device according to claim 1, characterized in that, The elastic component (35) includes two guide posts (351), one end of which is symmetrically mounted on the sliding block (33), and the other end of which passes through the mounting base (31) and slides with the mounting base (31). A spring (352) is provided on the guide post (351), one end of which abuts against the sliding block (33), and the other end of which abuts against the mounting base (31).

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