Device for preventing nut from being reversely installed

Abstract

The utility model discloses a device for preventing nuts from being installed reversely, which belongs to the technical field of machining and comprises a base, stand columns are fixedly installed at four corners of the bottom end of the base, an installation frame is fixedly installed on one side of the base, a conveying belt is arranged in the installation frame, and a limiting assembly is arranged above the conveying belt. The top end of the base is provided with four infrared correlation inductive devices which are distributed in a linear array, and the top end of the base is provided with four alarm lamps which are distributed in a linear array. Nuts are attracted through the magnet block, then the nuts at the bottom of the mechanical arm are scanned through the four infrared correlation inductive devices, the effect of detecting whether the nuts are in the reverse direction or not is achieved, when the conveyed nuts are in the reverse direction, the infrared correlation inductive devices detecting that the nuts are in the reverse direction give signals to the same set of alarm lamps, and the alarm lamps give an alarm. And the driving assembly stops running, so that workers can adjust in time conveniently, and the machining quality of products can be kept.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical processing, and more particularly to a device for preventing nuts from being reversely installed. Background Art

[0002] A nut is a cap that is screwed together with a bolt or screw to fasten. It is an essential component for all manufacturing machinery. Depending on the material, it is divided into several types, such as carbon steel, stainless steel, and non-ferrous metals. Some nuts can be placed in a mold and then injection molded to combine the nut with the injection molded part, making it easier to connect and fix them in subsequent use.

[0003] Workers place nuts on a loading platform, which is then gripped and conveyed into the injection mold by a robotic arm. However, some existing equipment lacks the ability to detect reverse-installed nuts. Consequently, after some products are processed, the nuts are reversed, making it difficult to connect them later and reducing the product's performance. Therefore, to address this issue, we developed a device to prevent reverse-installed nuts. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a device for preventing nut from being reversely installed, which adopts the following technical solutions:

[0005] A device for preventing nut reverse installation, comprising a base, wherein four corners of the bottom end of the base are fixedly mounted with columns, a mounting frame is fixedly mounted on one side of the base, a conveyor belt is provided in the mounting frame, a limit assembly is provided above the conveyor belt, four infrared ray counter-radiation inductive devices distributed in a linear array are provided at the top of the base, four warning lights are provided at the top of the base, the four warning lights are arranged corresponding to the four infrared ray counter-radiation inductive devices, the warning lights and the infrared ray counter-radiation inductive devices in the same group are linearly connected, a support frame is fixedly mounted on one side of the base, a frame is provided above the base, a plurality of connecting blocks distributed in a linear array are provided between the frame and the support frame, a support block is slidably mounted in the frame, a mechanical arm is provided at the bottom end of the support block, a mounting column is provided at the end of the mechanical arm, a mounting groove is provided at the bottom end of the mounting column, a magnet block is provided in the mounting groove, a clamping assembly is provided on the side wall of the mounting column, a driving assembly is provided between the support block and the frame, a receiving groove is provided on the inner wall at the top end of the mounting groove, and an ejection assembly is provided in the receiving groove.

[0006] By adopting the above technical solution, when the equipment is in use, the staff places the nut above the conveyor belt arranged inside the installation frame, and the nut is conveyed by the conveyor belt, and a limiting component is provided between the installation frame and the conveyor belt to limit the nut, which is convenient for the staff to arrange the nuts into a single row for stable transportation, and then the installation column and the magnet block are driven by the mechanical arm to move above the nut, and the nut is adsorbed by the magnet block, and the side wall of the installation column is provided with a clamping component to further clamp and fix the nut, and can also adjust the position of the nut at the bottom of the magnet block, which is convenient for the subsequent accurate scanning and detection of the equipment. When the nut is clamped, the driving component drives the support block to slide inside the frame The support block moves synchronously with the robotic arm, the magnet block and the nut, so that the nut moves above the infrared radiation sensing device, and the conveyed nut is scanned and detected by four infrared radiation sensing devices. When the conveyed nut is reversed, the infrared radiation sensing device gives a signal to the alarm light in the same group, and the alarm light sounds an alarm, and the drive assembly stops running, so that the staff can make timely adjustments. When the nut adjustment is completed, the drive assembly will run again to convey the nut, which helps to avoid the reverse installation of the nut in the processed product and is beneficial to improving the processing quality of the product. When the nut moves to the inside of the existing mold, the nut is pushed into the mold by the ejector assembly to achieve the unloading effect.

[0007] Furthermore, the limiting assembly includes mounting seats fixedly mounted on both sides of the mounting frame, a cylinder is fixedly mounted on the top of each of the two mounting seats, and a limiting plate is fixedly mounted on the ends of the two cylinder piston shafts.

[0008] By adopting the above technical solution, the cylinder drives the limit plate on the same side to move on the conveyor belt, so that the two limit plates move relative to each other. Through the cooperation of the two limit plates, it is convenient for the staff to arrange the nuts into a single row for stable transportation, which facilitates the subsequent precise adsorption of the magnet block.

[0009] Furthermore, a plurality of limiting rollers distributed in a linear array are rotatably mounted on opposite sides of the two limiting plates.

[0010] By adopting the above technical solution, the limiting rollers are arranged on the opposite sides of the two limiting plates, so that the limiting plates can play a limiting role without affecting the transportation of the nuts.

[0011] Furthermore, the clamping assembly includes four mounting plates installed on the side walls of the mounting column. The cross-sections of the four mounting plates are inverted "L" shapes and are distributed in a circular array on the side walls of the mounting column. A first telescopic rod is fixedly installed on the inner side of the vertical sections of the four mounting plates, and a positioning plate is fixedly installed on the end of the first telescopic rod.

[0012] By adopting the above technical solution, when the nut is adsorbed, the first telescopic rod drives the positioning plates in the same group to move. Through the cooperation of the four positioning plates, the effect of further clamping and fixing the nut is achieved, and the position of the nut can be corrected, which is convenient for subsequent scanning and detection of the equipment.

[0013] Furthermore, the driving assembly includes a screw rotatably installed in the frame, the support block is sleeved on the side wall of the screw, an installation box is fixedly installed on one side of the frame, a reduction motor is fixedly installed in the installation box, one end of the screw passes through the installation box and is fixedly connected to the end of the output shaft of the reduction motor, sliders are fixedly installed on both sides of the support block, and a sliding groove matching the slider on the same side is opened on the inner wall of the frame.

[0014] By adopting the above technical solution, when the nut is adsorbed, the screw is driven to rotate by the reduction motor, and the screw drives the support block to move in the frame. The support block moves synchronously with the robotic arm and the nut, which can play the role of conveying the nut. When the support block slides inside the frame, the support block slides with the slider in the same side slide groove. The cooperation of the slider and the slide groove is conducive to maintaining the stability of the support block movement.

[0015] Furthermore, the ejection assembly includes a second telescopic rod fixedly mounted on the inner wall of the top end of the storage slot, an ejection rod fixedly mounted on the end of the second telescopic rod, a through groove matching the ejection rod is provided in the middle portion of the magnet block, and a groove matching the lower section of the ejection rod is provided at the bottom end of the magnet block.

[0016] By adopting the above technical solution, when the nut moves into the mold, the second telescopic rod drives the ejector rod to move downward, and the ejector rod pushes the nut, thereby separating the nut from the adsorption of the magnet block, thereby achieving the purpose of unloading.

[0017] Furthermore, a calibration frame is fixedly installed on the top of the base, and the infrared radiation sensing devices are all located directly below the calibration frame.

[0018] By adopting the above technical solution, the calibration frame is set at the top of the base, which can protect the infrared radiation sensing device and facilitate the movement of the adjustment nut directly above the infrared radiation sensing device, thereby facilitating equipment detection.

[0019] In summary, the present invention has the following beneficial technical effects:

[0020] (1) In the present invention, the nuts are attracted by a magnet block, and then the driving assembly drives the robot arm to move with the nuts above the calibration frame. The nuts at the bottom of the robot arm are scanned by four infrared radiation sensing devices to detect whether the nuts are reversed. When the nut being transported is reversed, the infrared radiation sensing device that detects the reverse direction of the nut gives a signal to the same group of alarm lights, causing the alarm lights to sound an alarm and the driving assembly to stop running, so that the staff can make timely adjustments and it is beneficial to maintain the processing quality of the product.

[0021] (2) In the present invention, the setting of the limit assembly makes it easy for the staff to arrange the nuts into a single row for transportation, which is convenient for the subsequent precise adsorption of the magnet block. The side wall of the mounting column can play the role of clamping and fixing the nut through the setting of the clamping assembly, and can also play the role of adjusting the position of the nut, so that the nut is located in the center of the magnet block, which is convenient for subsequent detection.

[0022] (3) In the present invention, through the setting of the ejection assembly, when the robot arm moves into the mold with the nut, the ejection rod is driven downward by the second telescopic rod, and the nut is pushed by the ejection rod, thereby separating the nut from the adsorption of the magnet block, thereby achieving the purpose of unloading. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic structural diagram of the utility model;

[0024] Figure 2 For this utility model Figure 1 A magnified view of middle A;

[0025] Figure 3 For this utility model Figure 1 Enlarged view of middle B;

[0026] Figure 4 It is a cross-sectional view of the utility model;

[0027] Figure 5 For this utility model Figure 4 Enlarged view of middle C;

[0028] Figure 6 This is an exploded view of the limit assembly in the utility model.

[0029] Description of the numbers in the figure:

[0030] 1. Base; 2. Infrared radiation sensor; 3. Calibration frame; 4. Robotic arm; 5. Support block; 6. Frame; 7. Connecting block; 8. Support frame; 9. Mounting box; 10. Mounting frame; 11. Limiting plate; 12. Conveyor belt; 13. Mounting seat; 14. Cylinder; 15. Limiting roller; 16. Mounting column; 17. Mounting plate; 18. First telescopic rod; 19. Positioning plate; 20. Magnet block; 21. Ejector rod; 22. Screw; 23. Reducer motor; 24. Second telescopic rod; 25. Storage slot; 26. Mounting slot. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0032] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0033] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "mounted / connected," and "connected" should be understood in a broad sense. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be internal communication between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0034] The following is combined with Figure 1-6 The utility model is described in further detail.

[0035] See also Figure 1-6A device for preventing nut reverse installation includes a base 1, with columns fixedly installed at the four corners of the bottom end of the base 1, a mounting frame 10 fixedly installed on one side of the base 1, a conveyor belt 12 is provided in the mounting frame 10, and a limit assembly is provided above the conveyor belt 12. The limit assembly includes mounting seats 13 fixedly installed on both sides of the mounting frame 10, and cylinders 14 are fixedly installed on the tops of the two mounting seats 13. The ends of the piston shafts of the two cylinders 14 are fixedly installed with limit plates 11, and a plurality of limit rollers 15 distributed in a linear array are rotatably installed on the opposite sides of the two limit plates 11. When the equipment is in use, the staff places the nuts on top of the conveyor belt 12 set inside the installation frame 10, and transports the nuts through the conveyor belt 12. The cylinder 14 drives the limiting plate 11 on the same side to move on the conveyor belt 12, so that the two limiting plates 11 move relative to each other. Through the cooperation of the two limiting plates 11, it is convenient for the staff to arrange the nuts into a single row for stable transportation, and then facilitate the subsequent precise adsorption of the magnet block 20. The limiting roller 15 is set on the opposite side of the two limiting plates 11, so that the limiting plate 11 can play a limiting role without affecting the transportation of the nuts.

[0036] The top of the base 1 is provided with four infrared ray counter-radiation inductive devices 2 distributed in a linear array, and the top of the base 1 is provided with four alarm lights distributed in a linear array. The four alarm lights are provided corresponding to the four infrared ray counter-radiation inductive devices 2. The alarm lights and the infrared ray counter-radiation inductive devices 2 in the same group are linearly connected. A support frame 8 is fixedly installed on one side of the base 1. A frame 6 is provided above the base 1. A plurality of connecting blocks 7 distributed in a linear array are provided between the frame 6 and the support frame 8. A support block 5 is slidably installed in the frame 6. The bottom of the support block 5 is provided with The robotic arm 4 has a mounting column 16 at its end, a mounting groove 26 at the bottom of the mounting column 16, a magnet block 20 in the mounting groove 26, and a clamping assembly on the side wall of the mounting column 16. The clamping assembly includes four mounting plates 17 mounted on the side wall of the mounting column 16. The four mounting plates 17 have an inverted "L"-shaped cross-section and are distributed in a circular array on the side wall of the mounting column 16. The first telescopic rod 18 is fixedly installed on the inner side of the vertical section of the four mounting plates 17, and the end of the first telescopic rod 18 is fixedly installed with a positioning plate 19.

[0037] A driving assembly is provided between the support block 5 and the frame 6. The driving assembly includes a screw 22 rotatably installed in the frame 6. The support block 5 is sleeved on the side wall of the screw 22. A mounting box 9 is fixedly installed on one side of the frame 6. A reduction motor 23 is fixedly installed in the mounting box 9. One end of the screw 22 passes through the mounting box 9 and is fixedly connected to the end of the output shaft of the reduction motor 23. Sliders are fixedly installed on both sides of the support block 5. A slide groove matching the slider on the same side is opened on the inner wall of the frame 6. A calibration frame 3 is fixedly installed on the top of the base 1, and the infrared radiation sensing device 2 is located directly below the calibration frame 3.

[0038] When the nut is adsorbed, the first telescopic rod 18 drives the same group of positioning plates 19 to move. Through the cooperation of the four positioning plates 19, the effect of further clamping and fixing the nut is achieved, and the position of the nut can be corrected. When the nut is adsorbed, the screw 22 is driven to rotate by the reduction motor 23, and the screw 22 drives the support block 5 to move in the frame 6. The support block 5 moves synchronously with the mechanical arm 4 and the nut, which can play the role of conveying the nut. When the support block 5 slides inside the frame 6, the support block 5 slides with the slider in the same side slide. The cooperation of the slider and the slide is conducive to maintaining the stability of the movement of the support block 5. The nut is located above the infrared radiation sensing device 2 and moves. The conveyed nut is scanned and detected by the four infrared radiation sensing devices 2. When the conveyed nut is reversed, the infrared radiation sensing device 2 gives a signal to the same group of alarm lights, the alarm light sounds an alarm, and the drive assembly stops running, which is convenient for the staff to adjust in time. When the nut adjustment is completed, the drive assembly then runs again to convey the nut, which helps to avoid the reverse installation of the nut in the processed product and is conducive to improving the processing quality of the product.

[0039] A receiving groove 25 is provided on the inner wall of the top end of the mounting groove 26, and an ejection assembly is provided in the receiving groove 25. The ejection assembly includes a second telescopic rod 24 fixedly mounted on the inner wall of the top end of the receiving groove 25, and an ejection rod 21 is fixedly mounted on the end of the second telescopic rod 24. A through groove matching the ejection rod 21 is provided in the middle part of the magnet block 20, and a groove matching the lower section of the ejection rod 21 is provided at the bottom end of the magnet block 20. When the nut moves into the interior of the mold, the ejection rod 21 is driven downward by the second telescopic rod 24, and the ejection rod 21 pushes the nut, thereby separating the nut from the adsorption of the magnet block 20, thereby achieving the purpose of unloading.

[0040] The implementation principle of the embodiment of the present utility model is as follows: when the device is used, the staff puts the nut on the conveyor belt 12 provided inside the installation frame 10, and the nut is conveyed by the conveyor belt 12, and a limiting component is provided between the installation frame 10 and the conveyor belt 12, which plays the role of limiting the nut, so that the staff can arrange the nuts into a single row for stable transportation, and then the mounting column 16 and the magnet block 20 are driven by the mechanical arm 4 to move above the nut, and the nut is adsorbed by the magnet block 20, and the side wall of the mounting column 16 is provided with a clamping component, which plays the role of further clamping and fixing the nut, and can adjust the position of the nut at the bottom of the magnet block 20, which is convenient for the subsequent accurate scanning and detection of the equipment. When the nut is clamped, the driving component drives the support The support block 5 slides in the frame 6, and the support block 5 moves synchronously with the mechanical arm 4, the magnet block 20 and the nut, so that the nut moves above the infrared radiation sensing device 2, and the conveyed nut is scanned and detected by the four infrared radiation sensing devices 2. When the conveyed nut is reversed, the infrared radiation sensing device 2 gives a signal to the alarm light in the same group, the alarm light sounds an alarm, and the drive component stops running, so that the staff can make timely adjustments. When the nut adjustment is completed, the drive component will then run again to convey the nut, which helps to avoid the reverse installation of the nut in the processed product, which is beneficial to improving the processing quality of the product. When the nut moves to the inside of the existing mold, the nut is pushed into the mold by the ejection component to achieve the unloading effect.

[0041] The above are all preferred embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for preventing a nut from being reversely installed, comprising a base (1), characterized in that: The four corners of the bottom of the base (1) are fixedly mounted with columns, a mounting frame (10) is fixedly mounted on one side of the base (1), a conveyor belt (12) is arranged in the mounting frame (10), and a limit assembly is arranged above the conveyor belt (12), the top of the base (1) is provided with four infrared ray counter-radiation inductive devices (2) distributed in a linear array, the top of the base (1) is provided with four alarm lights distributed in a linear array, the four alarm lights are arranged correspondingly to the four infrared ray counter-radiation inductive devices (2), the alarm lights and the infrared ray counter-radiation inductive devices (2) in the same group are linearly connected, a support frame (8) is fixedly mounted on one side of the base (1), and the top of the base (1) is provided with a plurality of infrared ray counter-radiation inductive devices (2). A frame (6) is provided, and a plurality of connecting blocks (7) distributed in a linear array are provided between the frame (6) and the support frame (8), a support block (5) is slidably installed in the frame (6), a mechanical arm (4) is provided at the bottom end of the support block (5), a mounting column (16) is provided at the end of the mechanical arm (4), a mounting groove (26) is provided at the bottom end of the mounting column (16), a magnet block (20) is provided in the mounting groove (26), a clamping assembly is provided on the side wall of the mounting column (16), a driving assembly is provided between the support block (5) and the frame (6), a receiving groove (25) is provided on the inner wall of the top end of the mounting groove (26), and an ejection assembly is provided in the receiving groove (25).

2. The device for preventing nut reverse installation according to claim 1, characterized in that: The limiting assembly comprises mounting seats (13) fixedly mounted on both sides of the mounting frame (10), cylinders (14) are fixedly mounted on the top ends of the two mounting seats (13), and limiting plates (11) are fixedly mounted on the ends of the piston shafts of the two cylinders (14).

3. The device for preventing nut reverse installation according to claim 2, characterized in that: A plurality of limiting rollers (15) distributed in a linear array are rotatably mounted on opposite sides of the two limiting plates (11).

4. The device for preventing nut reverse installation according to claim 1, characterized in that: The clamping assembly comprises four mounting plates (17) mounted on the side walls of the mounting column (16); the cross-sections of the four mounting plates (17) are all in an inverted "L" shape and are distributed in a circular array on the side walls of the mounting column (16); a first telescopic rod (18) is fixedly mounted on the inner side of the vertical sections of the four mounting plates (17); and a positioning plate (19) is fixedly mounted on the end of each of the first telescopic rods (18).

5. The device for preventing nut reverse installation according to claim 1, characterized in that: The driving assembly comprises a screw (22) rotatably mounted in a frame (6); the support block (5) is sleeved on a side wall of the screw (22); a mounting box (9) is fixedly mounted on one side of the frame (6); a reduction motor (23) is fixedly mounted in the mounting box (9); one end of the screw (22) passes through the mounting box (9) and is fixedly connected to the end of the output shaft of the reduction motor (23); sliders are fixedly mounted on both sides of the support block (5); and a slide groove matching the slider on the same side is provided on the inner wall of the frame (6).

6. The device for preventing nut reverse installation according to claim 1, characterized in that: The ejection assembly comprises a second telescopic rod (24) fixedly mounted on the inner wall of the top end of the receiving slot (25); an ejection rod (21) is fixedly mounted on the end of the second telescopic rod (24); a through groove matching the ejection rod (21) is provided in the middle portion of the magnet block (20); and a groove matching the lower section of the ejection rod (21) is provided at the bottom end of the magnet block (20).

7. The device for preventing nut reverse installation according to claim 1, characterized in that: A calibration frame (3) is fixedly mounted on the top of the base (1), and the infrared radiation sensing devices (2) are all located directly below the calibration frame (3).

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