A rivet driving structure with a built-in pressure sensor

Abstract

The utility model discloses a riveting drive structure of built -in pressure sensor, its technical scheme main points are: including machine table, the top surface fixed mounting of machine table has the rack, the top surface of lower tool is provided with upper tool, the upper tool includes the lifting plate, the lifting plate sets up in the bottom surface of rack, the bottom surface fixed connection of lifting plate has the connecting rod, one end fixed connection of connecting rod has the fixed plate, the top surface of fixed plate is provided with the adjusting mouth, the inside of adjusting mouth is provided with the adjusting plate, through setting adjusting plate, starting second drive motor, the axle of second drive motor drives the rotation of screw rod, because the screw rod is connected with one of the sliding block screw, and the sliding block is fixedly connected with the adjusting plate, adjusts rivet to the accurate transverse riveting point position of corresponding workpiece, greatly improves the adaptability of equipment to the diversification riveting task, need not frequent adjustment workpiece's position, effectively saves production cost and riveting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of riveting equipment technology, and specifically to a riveting drive structure with a built-in pressure sensor. Background Technology

[0002] A riveting machine uses a stamping machine and a special connecting mold to perform an instantaneous high-pressure processing process. Based on the cold extrusion deformation of the sheet material itself, it forms a stress-free inlaid dot with a certain tensile and shear strength, which can connect two or more layers of sheets of different materials and thicknesses.

[0003] For example, Chinese Patent Publication No. CN205309210U discloses an automatic assembly and riveting machine, including a frame, upper fixture, lower fixture, worktable, pressure head, and electrical control box. The upper fixture is mounted on a crossbeam, and the lower fixture is mounted on the worktable. The crossbeam and the worktable are fixedly connected by guide columns. The electrical control box is located on the side of the frame. A pressure head is fixedly connected to the bottom of the upper fixture. An upper moving head is located above the crossbeam. The upper moving head is formed by two parallel plates fixedly connected by surrounding columns. A ball screw is located at the top of the upper moving head, and a pressure booster is located at the bottom of the upper moving head. A rotating shaft is located at the bottom of the lower fixture. This utility model has a simple structure, is easy to operate, and is stable and reliable in operation. The upper fixture body and the fixed head are easy and quick to disassemble, with accurate positioning and smooth movement. The upper moving head has the function of adsorbing and riveting workpieces, with reliable adsorption, effectively improving the riveting efficiency of the equipment.

[0004] Currently, there are still some shortcomings in the automatic assembly and riveting machine. For example, when the moving head picks up the rivet to rivet the workpiece, if the lateral position of the riveting is different, the position of the workpiece needs to be manually adjusted so that it is riveted to different positions, which results in slow efficiency in the workpiece riveting process. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides a riveting drive structure with a built-in pressure sensor, which solves the problems mentioned in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A riveting drive structure with a built-in pressure sensor includes: a machine base, a frame fixedly mounted on the top surface of the machine base, a lower fixture on the top surface of the machine base, the lower fixture comprising a mounting slot and a first drive motor, the mounting slot being formed on the bottom surface of the machine base, the first drive motor being fixedly mounted on the inner bottom surface of the mounting slot, the shaft of the first drive motor being fixedly connected to the lower fixture, an upper fixture on the top surface of the lower fixture, the upper fixture including a lifting plate, the lifting plate being disposed on the bottom surface of the frame, a connecting rod being fixedly connected to the bottom surface of the lifting plate, a fixing plate being fixedly connected to one end of the connecting rod, an adjustment port being formed on the top surface of the fixing plate, an adjustment plate being disposed inside the adjustment port, a power cylinder being fixedly mounted on the top surface of the adjustment plate, and a suction head being fixedly mounted on the shaft of the power cylinder; and an adjustment assembly disposed on both sides of the adjustment plate for adjusting the riveting position.

[0008] Preferably, the adjustment assembly includes: two guide grooves, which are respectively opened on both sides of the inner side of the adjustment port; a slider is provided inside the guide groove and the slider is fixedly connected to the adjustment plate; a lead screw is rotatably installed on one side of the inner side of one guide groove and is threadedly connected to the slider; a sliding rod is fixedly installed on one side of the inner side of the other guide groove and is slidably sleeved with the slider; and a second drive motor is fixedly installed on one side of the adjustment plate, the shaft of the second drive motor being fixedly connected to the lead screw.

[0009] Preferably, the adjusting assembly further includes a ball screw, which is threadedly connected to the lifting plate.

[0010] Preferably, a pressure sensor is provided on the outside of the power cylinder shaft, and a pressure display is fixedly installed on one side of the machine tool. The pressure sensor is electrically connected to the pressure display.

[0011] Preferably, the top surfaces of the lifting plate and the fixed plate are provided with guide holes, and a guide rod is fixedly installed between the machine base and the frame, with the guide hole and the guide rod being movably sleeved together.

[0012] Preferably, a limiting ring is fixedly sleeved on the outside of the guide rod.

[0013] In summary, the present invention has the following main advantages:

[0014] By setting an adjustment plate, when the position of the adjustment plate needs to be adjusted, the second drive motor is started. The shaft of the second drive motor drives the lead screw to rotate. Since the lead screw is threadedly connected to one of the sliders, and the slider is fixedly connected to the adjustment plate, while the other slider is sleeved on the slide rod and can slide, the slide rod plays a guiding and auxiliary support role. This makes it easy to adjust the rivet adsorbed by the suction head to the accurate lateral riveting point of the corresponding workpiece. At the same time, the rotation speed of the ball screw is controlled by a servo motor and servo driver. After the servo motor is started, it drives the ball screw to rotate, thereby adjusting the height of the lifting plate and the suction head. This adapts to riveting workpieces of different heights, greatly improving the adaptability of the equipment to diverse riveting tasks. There is no need to frequently adjust the position of the workpiece, effectively saving production costs and improving riveting efficiency.

[0015] By setting up a pressure sensor, during the riveting process, the pressure sensor can sensitively capture the pressure value applied by the power cylinder to the suction head and then to the rivet, and transmit the data to the pressure display in real time. The operator can then accurately know the actual pressure of each riveting operation, ensuring that it accurately matches the optimal riveting pressure required by the workpiece and the rivet. This effectively prevents quality problems such as weak rivet riveting due to insufficient pressure or workpiece deformation and rivet damage due to excessive pressure, and greatly improves the stability of riveting quality. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a schematic diagram of the planar structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the lifting plate structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the adjustment plate structure of this utility model.

[0020] Reference numerals in the attached drawings: 1. Machine base; 2. Machine frame; 3. Lower fixture; 4. Mounting slot; 5. First drive motor; 6. Upper fixture; 7. Lifting plate; 8. Connecting rod; 9. Fixing plate; 10. Adjustment port; 11. Adjustment plate; 12. Power cylinder; 13. Suction head; 14. Guide groove; 15. Lead screw; 16. Second drive motor; 17. Slide rod; 18. Slider; 19. Ball screw; 20. Guide rod; 21. Guide hole; 22. Pressure sensor; 23. Pressure display; 24. Limiting ring. Detailed Implementation

[0021] 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.

[0022] refer to Figure 1 - Figure 4 A riveting drive structure with a built-in pressure sensor includes: a machine base 1, a frame 2 fixedly mounted on the top surface of the machine base 1, a lower tooling 3 provided on the top surface of the machine base 1, the lower tooling 3 comprising a mounting groove 4 and a first drive motor 5, the mounting groove 4 being opened on the bottom surface of the machine base 1, the first drive motor 5 being fixedly mounted on the bottom surface inside the mounting groove 4, the shaft of the first drive motor 5 being fixedly connected to the lower tooling 3, an upper tooling 6 provided on the top surface of the lower tooling 3, the upper tooling 6 comprising a lifting plate 7, the lifting plate 7 being disposed on the bottom surface of the frame 2, a connecting rod 8 being fixedly connected to the bottom surface of the lifting plate 7, a fixing plate 9 being fixedly connected to one end of the connecting rod 8, an adjustment port 10 being opened on the top surface of the fixing plate 9, an adjustment plate 11 being disposed inside the adjustment port 10, a power cylinder 12 being fixedly mounted on the top surface of the adjustment plate 11, and a suction head 13 being fixedly mounted on the shaft of the power cylinder 12; and an adjustment assembly, the adjustment assembly being disposed on both sides of the adjustment plate 11 for adjusting the riveting position.

[0023] By setting the upper fixture 6, the workpiece to be riveted is placed on the lower fixture 3. The lower fixture 3 is used to initially position and fix the workpiece. The suction head 13 picks up the rivet. The power cylinder 12 is started to drive the suction head 13 to move downward until the suction head 13 contacts the surface of the workpiece. Then the first drive motor 5 is started to drive the lower fixture 3 to rotate forward or backward according to the setting to complete the riveting. The reliable adsorption performance of the suction head 13 ensures that the rivet will not fall or deviate during the movement. From the moment the rivet is picked up to the moment it contacts the surface of the workpiece, the rivet posture is kept stable, improving the riveting accuracy and reducing the scrap rate.

[0024] As a further embodiment of this utility model, the adjustment assembly includes: two guide grooves 14, which are respectively opened on both sides inside the adjustment port 10. A slider 18 is provided inside the guide groove 14 and is fixedly connected to the adjustment plate 11. A lead screw 15 is rotatably installed on one side inside the guide groove 14 and is threadedly connected to the slider 18. A sliding rod 17 is fixedly installed on one side inside the other guide groove 14 and is slidably sleeved with the slider 18. A second drive motor 16 is fixedly installed on one side of the adjustment plate 11 and the shaft of the second drive motor 16 is fixedly connected to the lead screw 15.

[0025] By setting the adjustment plate 11, when the position of the adjustment plate 11 needs to be adjusted, the second drive motor 16 is started. The shaft of the second drive motor 16 drives the lead screw 15 to rotate. Since the lead screw 15 is threadedly connected to one of the sliders 18 and the slider 18 is fixedly connected to the adjustment plate 11, and the other slider 18 is sleeved on the slide rod 17 and can slide, the slide rod 17 plays the role of guiding and auxiliary support. The rivets adsorbed by the suction head 13 can be easily adjusted to the accurate transverse riveting point of the corresponding workpiece, which greatly improves the adaptability of the equipment to diverse riveting tasks. There is no need to frequently adjust the position of the workpiece, effectively saving production costs and riveting efficiency.

[0026] As a further embodiment of this utility model, the adjusting assembly also includes: a ball screw 19, which is threadedly connected to the lifting plate 7;

[0027] By setting a ball screw 19, the rotation speed of the ball screw 19 is controlled by a servo motor and a servo driver. After the servo motor is started, it drives the ball screw 19 to rotate, thereby adjusting the height of the lifting plate 7 and the suction head 13 to adapt to riveting workpieces of different heights.

[0028] As a further embodiment of this utility model, a pressure sensor 22 is provided on the outside of the shaft of the power cylinder 12, and a pressure display 23 is fixedly installed on one side of the machine base 1. The pressure sensor 22 and the pressure display 23 are electrically connected.

[0029] By setting up a pressure sensor 22, during the riveting process, the pressure sensor 22 can sensitively capture the pressure value applied by the power cylinder 12 to the suction head 13 and then to the rivet, and transmit the data to the pressure display 23 in real time. The operator can then accurately know the actual pressure of each riveting operation, ensuring that it accurately matches the optimal riveting pressure required by the workpiece and the rivet. This effectively prevents quality problems such as weak rivet riveting due to insufficient pressure or workpiece deformation and rivet damage due to excessive pressure, and greatly improves the stability of riveting quality.

[0030] As a further embodiment of this utility model, the top surfaces of the lifting plate 7 and the fixed plate 9 are provided with guide holes 21, and a guide rod 20 is fixedly installed between the machine base 1 and the frame 2, with the guide hole 21 and the guide rod 20 movably sleeved together.

[0031] By setting the guide rod 20, when the lifting plate 7 is driven to move up and down during the riveting process, the unstable phenomena such as shaking and offset of the lifting plate 7 caused by external force interference and mechanical vibration are effectively avoided, ensuring that the rivets adsorbed by the suction head 13 can be accurately aligned with the riveting position of the workpiece, which greatly improves the riveting accuracy.

[0032] As a further embodiment of this utility model, a limiting ring 24 is provided on the outside of the guide rod 20;

[0033] By setting a limit ring 24, the limit ring 24 ensures that the lifting plate 7 will not rise excessively and cause damage to the components below due to excessive compression, thus maintaining the integrity of the overall structure of the equipment.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A rivet driving structure with a built-in pressure sensor, characterized by, include: A machine base (1) has a frame (2) fixedly installed on its top surface. A lower tooling (3) is provided on the top surface of the machine base (1). The lower tooling (3) consists of a mounting slot (4) and a first drive motor (5). The mounting slot (4) is located on the bottom surface of the machine base (1). The first drive motor (5) is fixedly installed on the bottom surface of the mounting slot (4). The shaft of the first drive motor (5) is fixedly connected to the lower tooling (3). An upper tooling (6) is provided on the top surface of the lower tooling (3). The device (6) includes a lifting plate (7), which is set on the bottom surface of the frame (2). A connecting rod (8) is fixedly connected to the bottom surface of the lifting plate (7). A fixing plate (9) is fixedly connected to one end of the connecting rod (8). An adjustment port (10) is opened on the top surface of the fixing plate (9). An adjustment plate (11) is set inside the adjustment port (10). A power cylinder (12) is fixedly installed on the top surface of the adjustment plate (11). A suction head (13) is fixedly installed on the shaft of the power cylinder (12). An adjustment assembly is provided on both sides of the adjustment plate (11) for adjusting the riveting position.

2. A rivet drive structure with a built-in pressure sensor according to claim 1, characterized in that The adjustment component includes: Two guide grooves (14) are respectively opened on both sides of the inside of the adjustment port (10). A slider (18) is provided inside the guide groove (14). The slider (18) is fixedly connected to the adjustment plate (11). A lead screw (15) is rotatably installed on one side of the inside of one of the guide grooves (14). The lead screw (15) is threadedly connected to the slider (18). A slide rod (17) is fixedly installed on one side of the inside of the other guide groove (14). The slide rod (17) is slidably sleeved with the slider (18). A second drive motor (16) is fixedly installed on one side of the adjustment plate (11). The shaft of the second drive motor (16) is fixedly connected to the lead screw (15).

3. A rivet drive structure with a built-in pressure sensor according to claim 2, characterized in that The adjustment assembly further includes a ball screw (19), which is threadedly connected to the lifting plate (7).

4. A rivet drive structure with a built-in pressure sensor according to claim 1, wherein A pressure sensor (22) is provided on the outside of the shaft of the power cylinder (12), and a pressure display (23) is fixedly installed on one side of the machine base (1). The pressure sensor (22) is electrically connected to the pressure display (23).

5. A rivet drive structure with a built-in pressure sensor according to claim 3, wherein The top surfaces of the lifting plate (7) and the fixing plate (9) are provided with guide holes (21), and a guide rod (20) is fixedly installed between the machine base (1) and the machine frame (2). The guide hole (21) and the guide rod (20) are movably sleeved together.

6. A rivet drive structure with a built-in pressure sensor according to claim 5, wherein The guide rod (20) is externally fixed with a limiting ring (24).

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