Riveting mechanism for movable impeller

Abstract

The utility model relates to the technical field of movable impeller manufacturing, and provides a movable impeller riveting mechanism which comprises a working table, a first support, a rotating disc, a first driving mechanism, a pressure sensor and a second driving mechanism. The first support and the rotating disc are both arranged on the working table, the first driving mechanism is installed on the first support, an output shaft of the first driving mechanism extends into a working space below the first driving mechanism to be connected with the pressure sensor, a clamp is arranged on the rotating disc, and the clamp is used for fixing a product. One of the multiple fixed products and the mold are coaxially arranged, and the first driving mechanism can drive the output shaft to move downwards so as to achieve riveting operation on the products coaxially arranged with the mold. The riveting device has the advantages of being stable in riveting pressure, good in product quality and high in bracket lightness.

Description

Technical Field

[0001] This utility model relates to the field of moving impeller manufacturing technology, specifically to a moving impeller riveting mechanism. Background Technology

[0002] The impeller is a key component of a vacuum cleaner. Its function is to use the high-speed rotation of the motor to drive the rotating impeller, thereby creating negative pressure in the air to achieve the effect of vacuuming.

[0003] In the existing riveting process for moving impellers, there is often a problem of unstable riveting quality due to poor control of riveting pressure, which ultimately affects product quality. At the same time, since the support needs to bear a lot of gravity during riveting, there is a risk of deformation. Therefore, there is an urgent need to design a new riveting mechanism to solve the above defects. Utility Model Content

[0004] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a moving impeller riveting mechanism.

[0005] The present invention provides a moving impeller riveting mechanism, comprising a worktable, a first support, a turntable, a first drive mechanism, a pressure sensor, and a second drive mechanism.

[0006] The first support and the turntable are both arranged on the workbench. The first support has a working space in the middle and an assembly surface on the top. The assembly surface has an assembly hole. The first drive mechanism is mounted on the assembly surface and has an output shaft that passes through the assembly hole from one side and extends into the working space on the other side of the assembly hole. The end of the output shaft is connected to the pressure sensor, and the bottom of the pressure sensor is used to assemble the mold.

[0007] The top of the turntable is provided with multiple mounting positions, and each mounting position is provided with a clamp for fixing products. Among the multiple fixed products, one is arranged coaxially with the mold. The first drive mechanism can drive the output shaft to move downward to realize the riveting operation of the product arranged coaxially with the mold.

[0008] The second drive mechanism is connected to the turntable drive and enables the turntable to adjust the products on adjacent mounting positions to be arranged coaxially with the mold with each rotation of the turntable;

[0009] The first drive mechanism is driven by an electric cylinder, and the first bracket is made of chromium-molybdenum-vanadium mold steel.

[0010] Preferably, the bottom of the turntable is mounted on a second support, and the turntable is mounted on the worktable via the second support.

[0011] Preferably, the plurality of mounting positions are evenly arranged on the turntable.

[0012] Preferably, the first support adopts a C-shaped structure.

[0013] Preferably, the first drive mechanism includes a servo motor and an electric cylinder. The servo motor is driven and connected to the electric cylinder, which has an output shaft. When the servo motor rotates, it can drive the output shaft to extend or retract.

[0014] Preferably, the servo motor is a high-precision servo motor with an absolute encoder, and the motion accuracy is controlled within ±.mm.

[0015] Preferably, it also includes a servo controller, which is signal-connected to the servo motor.

[0016] Preferably, the system also includes a PLC, which is connected to the pressure sensor and the servo controller for signal transmission.

[0017] Preferably, the second drive mechanism includes a stepper motor, which can drive the turntable to rotate by a set angle.

[0018] Preferably, the second drive mechanism further includes a transmission assembly, the interior of the second bracket has a receiving space, the transmission assembly is arranged in the receiving space, and the stepper motor is arranged outside the receiving space and drivenly connected to the transmission assembly.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This utility model employs an electric cylinder drive for riveting operations and detects riveting pressure by installing a pressure sensor. Furthermore, the bracket is designed to be made of chromium-molybdenum-vanadium mold steel, effectively solving the defects of existing hydraulic cylinder riveting mechanisms, such as unstable pressure and poor repeatability. This ensures the consistency of riveted products on the production line, improving riveting accuracy and stability by an order of magnitude. It also solves the problem of oil leakage causing aging and corrosion of wiring and air lines, leading to shortened equipment lifespan. It boasts advantages such as stable riveting pressure, high product quality, and a lightweight bracket. Attached Figure Description

[0021] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the first drive mechanism and the support frame;

[0024] Figure 3 This is a schematic diagram of the product structure after the bushing is riveted.

[0025] The diagram shows:

[0026] Workbench 1

[0027] First support 2

[0028] Workspace 21

[0029] Assembly hole 22

[0030] Turntable 3

[0031] Fixture 31

[0032] Cam 32

[0033] Second support 33

[0034] First drive mechanism 4

[0035] Servo motor 41

[0036] Electric cylinder 42

[0037] Output shaft 421

[0038] Pressure sensor 5

[0039] Mold 6

[0040] Servo Controller 7

[0041] Product 101 Detailed Implementation

[0042] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the present invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0043] This utility model provides a moving impeller riveting mechanism, including a worktable 1, a first support 2, a turntable 3, a first drive mechanism 4, a pressure sensor 5, and a second drive mechanism, as follows: Figure 1 , Figure 2 , Figure 3As shown, the first support 2 and the turntable 3 are both arranged on the workbench 1. The first support 2 has a working space 21 in the middle and an assembly surface on the top. The assembly surface has an assembly hole 22. The first drive mechanism 4 is mounted on the assembly surface and has its own output shaft 421 that passes through the assembly hole 22 from one side and extends into the working space 21 on the other side of the assembly hole 22. The end of the output shaft 421 is connected to a pressure sensor 5. The bottom of the pressure sensor 5 is used to assemble the mold 6.

[0044] The bottom of the turntable 3 is set on the second bracket 33, and the top of the turntable 3 is provided with multiple mounting positions. Each mounting position is provided with a clamp 31, which is used to fix the product 101. The fixed product 101 is arranged coaxially with the mold 6. The first drive mechanism 4 can drive the output shaft 421 to move downward to realize the riveting operation of the product 101.

[0045] Specifically, multiple mounting positions are evenly arranged on the turntable 3. When the product 101 on one mounting position completes the riveting operation, the second drive mechanism can drive the turntable 3 to rotate at a set angle so that the product 101 on the adjacent mounting position faces the mold 6, and then the riveting operation of the product 101 on that mounting position is carried out.

[0046] The first support 2 adopts a C-shaped structure and is made of chromium-molybdenum-vanadium mold steel, which enables the first support 2 and the electric cylinder to withstand pressure greater than 5T without deformation, greatly increasing the strength of the equipment.

[0047] The first drive mechanism 4 includes a servo motor 41 and an electric cylinder 42. The servo motor 41 is connected to the electric cylinder 42 for drive. The electric cylinder 42 has an output shaft 421. When the servo motor 41 rotates, it can drive the output shaft 421 to extend or retract. The first drive mechanism 4 preferably uses a high-precision servo motor 41 with an 18-bit absolute encoder to control the electric cylinder 42, and the motion accuracy is controlled within ±0.01mm.

[0048] The second drive mechanism includes a transmission assembly and a stepper motor. The second bracket 33 has an internal accommodating space. The transmission assembly is arranged within this space, while the stepper motor is positioned outside. A cam 32 extends from the transmission assembly, and the stepper motor is connected to the cam 32. The stepper motor is driven by the transmission assembly through the cam 32. The stepper motor can drive the turntable 3 to rotate by a set angle via the transmission assembly. In practical applications, the set angle is determined based on the mounting positions on the turntable 3. For example, if the turntable 3 has 8 mounting positions, the set angle is 45°, meaning the stepper motor can drive the turntable 3 to rotate 45° per rotation. Similarly, if the turntable 3 has 6 mounting positions, the set angle is 60°, meaning the stepper motor can drive the turntable 3 to rotate 60° per rotation. In practical applications, the appropriate angle should be selected based on the specific application scenario.

[0049] It should be noted that the transmission component in this utility model is existing technology and will not be described in detail here.

[0050] This invention also includes a PLC and a servo controller 7. The servo controller 7 is signal-connected to the servo motor 41, and the PLC is signal-connected to both the pressure sensor 5 and the servo controller 7. The PLC can read the signal from the pressure sensor 5. After the product 101 is placed on the fixture 31, the PLC sends pulse signals to the servo controller 7, causing the servo motor 41 to control the electric cylinder 42 to slowly move downwards until the mold 6 presses down on the product 101 placed on the fixture 31. After the riveting operation is completed, the set parameters can be saved. By setting a pressure alarm value 200 kg higher than the riveting pressure, the riveting progress can be improved, and the product quality can be enhanced. When the pressure alarm value is reached, the PLC sends a reset signal, causing the electric cylinder 42 to return to its original position.

[0051] This invention, through debugging and trial operation of the riveting mechanism of the moving impeller of the electric cylinder 42 controlled by the high-precision servo motor 41 on the riveting mechanism, can effectively achieve the expected design effect. During production line operation, the consistency of the products 101 riveted by the electric cylinder 42 is extremely high, completely solving the problem of unstable product quality caused by the original riveting mechanism. Due to the high riveting consistency, it is unaffected by the environment, making the production line operation more stable and reliable, and further improving the yield rate.

[0052] The assembly and working principle of this utility model are as follows:

[0053] Install the cam 32, turntable 3, and clamp 31 on the worktable 1 according to the partial assembly diagram of the riveting equipment; install the first bracket 2 on the worktable 1 according to the positioning requirements, install the electric cylinder 42 on the first bracket 2, and then install the pressure sensor 5 on the output shaft 421 of the electric cylinder 42. After installing the mold 6 on the pressure sensor 5, fine-tune the first bracket 2 to keep the mold 6 and the clamp 31 coaxial.

[0054] The internal lead screw of the electric cylinder 42 is designed to have a lead of 10. The pulse count of the servo controller 7 is set so that the servo motor 41 rotates one revolution, causing the electric cylinder 42 to move downwards by 1mm. The PLC reads the signal from the pressure sensor 5, and pressure is applied to the pressure sensor 5 to observe whether the PLC can read the pressure signal. After completing the above debugging, the product 101 is placed on the fixture 31. The PLC jogs and sends pulse signals to the servo controller 7, causing the servo motor 41 to control the electric cylinder 42 to slowly move downwards until the mold 6 presses against the product 101 placed on the fixture 31, completing the riveting operation and saving the set parameters as working data. The system monitors the riveting pressure transmitted from pressure sensor 5 to the PLC; it sets a value 200 kg higher than the riveting pressure as a pressure alarm value; when the pressure alarm value is reached, the PLC sends a reset signal to return the electric cylinder 42 to its original position; each time, the PLC sends a pulse signal to move the electric cylinder 42 to the working position, and after completing the riveting of product 101, it returns to its original position; the second drive mechanism drives the cam 32 to rotate to the next working position according to the riveting completion signal, and then the PLC sends pulse and direction signals to perform riveting again, repeating the work to complete the riveting operation of product 101 by the electric cylinder 42.

[0055] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0056] The specific embodiments of this utility model have been described above. It should be understood that this utility model is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the substantive content of this utility model. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A moving vane riveting mechanism characterized by comprising: The first support (2), the rotating disc (3) are arranged on the workbench (1), the middle part of the first support (2) has a work space (21), the top of the first support (2) has an assembly surface, the assembly surface has an assembly hole (22), the first driving mechanism (4) is installed on the assembly surface and has an output shaft (421) which passes through the assembly hole (22) from one side of the assembly hole (22) and extends to the other side of the assembly hole (22) in the work space (21), the end of the output shaft (421) is connected with the pressure sensor (5), the bottom of the pressure sensor (5) is used for assembling a mold (6). The top of the rotating disc (3) is provided with a plurality of mounting positions, each of which is provided with a clamp (31) for fixing a product (101), wherein one of the plurality of fixed products (101) is coaxially arranged with the mold (6), and the first driving mechanism (4) can drive the output shaft (421) to move downward to realize riveting operation on the product (101) coaxially arranged with the mold (6). The second driving mechanism is drivingly connected with the rotating disc (3) and can adjust the product (101) on the adjacent mounting position to be coaxially arranged with the mold (6) every time the rotating disc (3) rotates once. The first driving mechanism (4) adopts an electric cylinder, and the first support (2) is made of chrome molybdenum vanadium mold steel. The bottom of the rotating disc (3) is provided on the second support (33), and the rotating disc (3) is provided on the workbench (1) through the second support (33).

2. The dynamic impeller swaging mechanism according to claim 1, wherein The plurality of mounting positions are uniformly arranged on the rotating disc (3).

3. The dynamic impeller swaging mechanism of claim 1, wherein The first support (2) adopts a C-shaped structure.

4. The dynamic impeller swaging mechanism of claim 1, wherein The first driving mechanism (4) includes a servo motor (41) and an electric cylinder (42), the servo motor (41) is drivingly connected with the electric cylinder (42), the electric cylinder (42) has the output shaft (421), and when the servo motor (41) rotates, the output shaft (421) can be driven to extend or retract.

5. The dynamic impeller swaging mechanism of claim 1, wherein The servo motor (41) is a high-precision servo motor (41) with 18-bit absolute value encoder, and the motion accuracy is controlled within ±0.01mm.

6. The dynamic impeller swaging mechanism according to claim 5, wherein A servo controller (7) is further included, and the servo controller (7) is signal connected with the servo motor (41).

7. The dynamic impeller swaging mechanism of claim 5, wherein A PLC is further included, and the PLC is signal connected with the pressure sensor (5) and the servo controller (7) respectively.

8. The dynamic blade riveting mechanism of claim 7, wherein, The second driving mechanism includes a stepping motor, and the rotating disc (3) can be driven to rotate by a set angle through the stepping motor.

9. The dynamic impeller swaging mechanism of claim 2, wherein, The second driving mechanism further includes a transmission assembly, the second support (33) has an accommodation space inside, and the transmission assembly is arranged in the accommodation space, and the stepping motor is arranged outside the accommodation space and is drivingly connected with the transmission assembly.

10. The dynamic impeller swaging mechanism of claim 9, wherein, ​

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