Automatic alarm device for automatic motor screw locking machine

Abstract

The utility model discloses an automatic alarm device for a motor automatic screw locking machine, which relates to the technical field of screw locking machines and comprises a base station, a screw locking component is mounted at the top end of the front part of the base station, a bearing plate is mounted at the top end of the base station, and a material box is mounted at the top end of the bearing plate. A screw conveying assembly is arranged in the material box, the front end of the screw conveying assembly extends out of the front end of the material box, a material distributing disc is arranged at the bottom of the extending end of the screw conveying assembly, a rotating shaft is installed in the middle of the bottom end of the material distributing disc, and a driving machine is installed at the bottom end of the rotating shaft. A detection module is arranged at the top end of the driver, and a pressure sensor is installed at the bottom end of the material box. By arranging a series of structures, when materials are few and need to be supplemented, the alarm gives an alarm to remind workers to supplement the materials so as to detect whether the screws are normally conveyed or successfully adsorbed by the screw locking assembly or not.

Description

Technical Field

[0001] This utility model relates to the field of screw fastening machine technology, specifically an automatic alarm device for a motor-driven automatic screw fastening machine. Background Technology

[0002] An automatic screw fastening machine, also known as an automatic screw driving machine, can automatically fasten screws without human intervention. The operator only needs to pick up the item to be fastened. The automatic screw fastening machine does everything automatically, without the need for manual screw fastening or picking up of screws. It consists of an electric screwdriver, an automation system, and an automatic screw retraction device. The operator only needs to set up the automation system once to use it.

[0003] When an automatic screw fastening machine is conveying screws, the screw material in the material box needs to be replenished when it decreases to a certain amount. Most existing automatic screw fastening machines require workers to observe the number of screws and replenish them in a timely manner. Moreover, during screw conveying, there may be malfunctions in the screw conveying component, which may prevent the screws from being conveyed normally, or the fastening component may fail to successfully pick up the screws. Existing automatic screw fastening machines require workers to observe in real time and do not have automatic alarms, which may lead to untimely detection of problems. Utility Model Content

[0004] The purpose of this utility model is to provide an automatic alarm device for an automatic screw fastening machine for motors, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic alarm device for an automatic screw fastening machine, comprising a base, a screw fastening assembly mounted on the top front of the base, a support plate mounted on the top of the base, a material box mounted on the top of the support plate, a screw conveying assembly disposed inside the material box, the front end of the screw conveying assembly extending beyond the front end of the material box, a distributing disc disposed at the bottom of the extended end of the screw conveying assembly, a rotating shaft mounted at the middle position of the bottom end of the distributing disc, a drive motor mounted at the bottom end of the rotating shaft, a detection module disposed at the top of the drive motor, a pressure sensor mounted at the bottom end of the material box, a positioning base plate mounted at the bottom end of the pressure sensor, and an alarm mounted on the top of the support plate on one side of the material box.

[0006] Preferably, a protective cover is hinged to the top of the material box, and the protective cover can be folded open to facilitate feeding and maintenance of the screw conveying assembly inside the material box.

[0007] Preferably, the four corners of the bottom of the material box and the four corners of the top of the positioning base plate are connected to telescopic rods. The telescopic rods can be retracted. When materials are stored inside the material box, pressure is applied to the pressure sensor installed at the bottom of the material box. The four telescopic rods support the material box to prevent the material box from tilting and affecting the pressure received by the pressure sensor.

[0008] Preferably, a support rod is installed at the front end of the material box below the screw conveying assembly. The front end of the support rod is fixedly installed on the outer surface of the drive motor to support the drive motor. When the material inside the material box descends, the support rod drives the drive motor to descend, so that the distance between the material distribution plate above the drive motor and the screw conveying assembly at the front end of the material box does not change.

[0009] Preferably, the circumferential surface of the distribution tray is provided with four arc-shaped grooves that match the screws at equal intervals. The top of the detection module is provided with four detection lenses located below the arc-shaped grooves. The drive motor contains a control circuit and a motor. The control circuit controls the motor to rotate at a 45-degree angle to ensure that each detection lens is always located at the bottom of the arc-shaped groove. When the screws are being distributed in the arc-shaped grooves of the distribution tray, two of the detection lenses will detect whether the screws are located in the arc-shaped grooves on one side of the distribution tray. When the screw locking assembly picks up the screws, if the picking fails, the screws will remain on the distribution tray and be rotated to the other side to be detected by the detection lenses.

[0010] Preferably, a first indicator light is installed at one end of the top of the alarm, and a second indicator light is installed at the other end of the top of the alarm. The alarm is connected to the pressure sensor and the detection module respectively. If the pressure sensor detects that there is insufficient material inside the material box, the first indicator light will light up. If the detection module detects that there are screws above the distribution plate that have not been attracted or conveyed to the distribution plate by the conveying component, the second indicator light will light up.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. The automatic alarm device for this motor-driven automatic screw fastening machine works in conjunction with a descending material box and a pressure sensor. When the material in the material box decreases during screw conveying, and the material needs to be replenished, the pressure sensor receives a decrease in pressure, triggering an alarm to remind the worker to replenish the material.

[0013] 2. The automatic alarm device for this motor-driven automatic screw fastening machine works in conjunction with the distribution plate detection module. During screw feeding, four detection lenses on the top of the detection module detect whether the screw is located outside the distribution plate, thus determining whether the screw is being fed normally or whether it has been successfully attracted by the screw fastening component. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the material box structure of this utility model;

[0016] Figure 3 This is a side view of the material box structure of this utility model.

[0017] In the diagram: 1. Base; 2. Support plate; 3. Material box; 4. First signal light; 5. Second signal light; 6. Screw fastening assembly; 7. Alarm; 8. Screw conveying assembly; 9. Distributor tray; 10. Telescopic rod; 11. Pressure sensor; 12. Positioning base plate; 13. Support connecting rod; 14. Drive motor; 15. Detection module; 16. Detection lens; 17. Rotating shaft; 18. Protective cover. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] like Figures 1 to 3As shown, the automatic alarm device for the automatic screw fastening machine in this embodiment includes a base 1. A screw fastening assembly 6 is installed at the top front of the base 1. The screw fastening assembly 6 picks up and installs screws. A support plate 2 is installed at the top of the base 1, and a material box 3 is installed at the top of the support plate 2. A screw conveying assembly 8 is installed inside the material box 3. The screw conveying assembly 8 includes a conveyor belt and a positioning mechanism, which conveys the screws inside the material box 3 to the front end. The front end of the screw conveying assembly 8 extends beyond the front end of the material box 3. A distribution plate 9 is provided at the bottom of the extended end of the screw conveying assembly 8. Four arc-shaped grooves matching the screws are evenly distributed on the circumferential surface of the distribution plate 9. A rotating shaft 17 is installed at the middle position of the bottom end of the distribution plate 9. A drive motor 14 is installed at the bottom end of the rotating shaft 17. The drive motor 14 drives the distribution plate 9 to rotate at a 45-degree angle with the rotating shaft 17 as the center, conveying the screws sequentially towards the screw fastening assembly 6. A detection module 15 is provided at the end of the material box 3. The detection module 15 is used to detect whether the screw is being conveyed smoothly or successfully picked up. A pressure sensor 11 is installed at the bottom of the material box 3. A positioning base plate 12 is installed at the bottom of the pressure sensor 11. When material is placed inside the material box 3, the material box 3 will apply pressure to the pressure sensor 11. The pressure sensor 11 can be preset with a value. When the material inside the material box 3 is output, causing the weight of the material box 3 to decrease and rise, the pressure received by the pressure sensor 11 decreases. When the pressure reaches the preset value, it means that the material inside the material box 3 needs to be replenished. An alarm 7 is installed on the top of the support plate 2 on one side of the material box 3. The alarm 7 contains a buzzer. The alarm 7 is connected to the pressure sensor 11 and the detection module 15 respectively. When the pressure sensor 11 detects that the material needs to be replenished, the detection module detects that the material distribution plate 9 cannot supply material normally, or the screw fastening assembly 6 cannot pick up the screw, the alarm 7 will sound an alarm.

[0021] Specifically, a protective cover 18 is hinged to the top of the material box 3. The protective cover 18 can be folded open to facilitate feeding and maintenance of the screw conveying assembly 8 inside the material box 3.

[0022] Furthermore, the four corners at the bottom of the material box 3 and the four corners at the top of the positioning base plate 12 are connected to telescopic rods 10. The telescopic rods 10 can be retracted. When materials are stored inside the material box 3, pressure is applied to the pressure sensor 11 installed at the bottom of the material box 3. The four telescopic rods 10 support the material box 3 to prevent the material box 3 from tilting and affecting the pressure received by the pressure sensor 11.

[0023] Furthermore, a support rod 13 is installed at the front end of the material box 3 below the screw conveying assembly 8. The front end of the support rod 13 is fixedly installed on the outer surface of the drive motor 14 to support the drive motor 14. When the material inside the material box 3 is placed and descends, the support rod 13 drives the drive motor 14 to descend, so that the distance between the material distribution plate 9 above the drive motor 14 and the screw conveying assembly 8 at the front end of the material box 3 will not change.

[0024] Furthermore, the circumferential surface of the distribution plate 9 is provided with four arc-shaped grooves that match the screws at equal intervals. The top of the detection module 15 is provided with four detection lenses 16 located below the arc-shaped grooves. The drive motor 14 contains a control circuit and a motor. The control circuit controls the motor to rotate at a 45-degree angle to ensure that each detection lens 16 is always located at the bottom of the arc-shaped groove. When the screws are distributed in the arc-shaped groove of the distribution plate 9, two of the detection lenses 16 will detect whether the screws are located in the arc-shaped groove on one side of the distribution plate 9. When the screw locking assembly 6 picks up the screws, if the picking fails, the screws will remain on the distribution plate 9 and be rotated to the other side to be detected by the detection lenses 16.

[0025] Furthermore, a first indicator light 4 is installed at one end of the top of the alarm 7, and a second indicator light 5 is installed at the other end of the top of the alarm 7. The alarm 7 is connected to the pressure sensor 11 and the detection module 15 respectively. If the pressure sensor 11 detects that there is insufficient material inside the material box 3, the first indicator light 4 will light up. If the detection module 15 detects that there are screws above the distribution plate 9 that have not been attracted or have not been conveyed to the distribution plate 9 by the screw conveying assembly 8, the second indicator light 5 will light up.

[0026] The usage method of this embodiment is as follows: When using the automatic screw fastening machine, materials are placed inside the material box 3, and screws are conveyed to the circumferential surface of the distribution plate 9 by the screw conveyor assembly 8 for distribution. Then, the screw fastening assembly 6 picks up the screws for installation. When materials are placed inside the material box 3, the material box 3 will apply pressure to the pressure sensor 11. The pressure sensor 11 can be preset with a value. When the materials inside the material box 3 are output, causing the weight of the material box 3 to decrease and rise, the pressure received by the pressure sensor 11 decreases. When the pressure reaches the preset value, the alarm 7 sounds an alarm, and the first indicator light 4 illuminates. The start indicates that the material inside the material box 3 needs to be replenished. When conveying screws, the drive motor 14 drives the distribution plate 9 to rotate 45 degrees to ensure that each detection lens 16 is always at the bottom of the arc groove. When the screws are distributed in the arc groove position of the distribution plate 9, two of the detection lenses 16 will detect whether the screw is located in the arc groove position on one side of the distribution plate 9. When the screw locking assembly 6 picks up the screw, if the picking fails, the screw will remain on the distribution plate 9 and be rotated to the other side to be detected by the detection lens 16. If the above situation occurs, the alarm 7 will sound an alarm, and the second indicator light 5 will light up at the same time.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An automatic alarm device for an automatic screw fastening machine for motors, comprising a base (1), characterized in that: A screw fastening assembly (6) is installed at the top front of the base (1). A support plate (2) is installed at the top of the base (1). A material box (3) is installed at the top of the support plate (2). A screw conveying assembly (8) is installed inside the material box (3). The front end of the screw conveying assembly (8) extends out of the front end of the material box (3). A distribution plate (9) is installed at the bottom of the extension end of the screw conveying assembly (8). A rotating shaft (17) is installed at the middle position of the bottom end of the distribution plate (9). A drive motor (14) is installed at the bottom end of the rotating shaft (17). A detection module (15) is installed at the top of the drive motor (14). A pressure sensor (11) is installed at the bottom end of the material box (3). A positioning base plate (12) is installed at the bottom end of the pressure sensor (11). An alarm (7) is installed on the top of the support plate (2) on one side of the material box (3).

2. The automatic alarm device for an automatic screw fastening machine for motors according to claim 1, characterized in that: The top of the material box (3) is hinged with a protective cover (18).

3. The automatic alarm device for an automatic screw fastening machine for motors according to claim 1, characterized in that: The material box (3) is connected to the four corners at the bottom and the four corners at the top of the positioning base plate (12) by telescopic rods (10).

4. The automatic alarm device for an automatic screw fastening machine for motors according to claim 1, characterized in that: A support rod (13) is installed at the front end of the material box (3) below the screw conveying assembly (8), and the front end of the support rod (13) is fixedly installed on the outer surface of the drive motor (14).

5. The automatic alarm device for an automatic screw fastening machine for motors according to claim 1, characterized in that: The circumferential surface of the material distribution plate (9) is provided with four arc-shaped grooves that match the screws at equal intervals, and the top of the detection module (15) is provided with four detection lenses (16) located below the arc-shaped grooves.

6. The automatic alarm device for an automatic screw fastening machine for motors according to claim 1, characterized in that: A first signal light (4) is installed at one end of the top of the alarm (7), and a second signal light (5) is installed at the other end of the top of the alarm (7).

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