Servo core-pulling mechanism of bending equipment
The nylon core movement is driven by the servo motor, which solves the problem of difficulty in adjusting the core position and low accuracy during the bending of the car luggage rack, improves product stability and production efficiency, and reduces costs.
Patent Information
- Application Number
- CN202421271184.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-05
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-06-05
AI Technical Summary
During the bending process of existing car luggage racks, the core extraction position is difficult and the adjustment accuracy is low, resulting in poor product stability, low production efficiency and high cost.
采用伺服电机驱动丝杠，丝杠带动尼龙芯进行往复运动，通过导轨副实现高精度、高可靠性的运动，适用于多型号行李架。
It significantly improves the stability of the product, reduces the error rate in the production process, reduces the production cost, and greatly improves the production efficiency and stability.
Smart Images
Figure CN223028203U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of automobile parts processing, and particularly relates to a servo core-pulling mechanism of a bending device. Background Art
[0002] In the production process of automobile roof racks, the bending process is a crucial link, and the core-pulling mechanism is the key component to realize this process. At the beginning of bending, the nylon core enters the cavity of the roof rack to ensure that the roof rack does not collapse, have pits or obvious necking during the bending process. However, the currently widely used core-pulling mechanisms have exposed some obvious disadvantages in actual operation, which not only affect the production efficiency, but also pose a potential threat to the product quality.
[0003] First of all, the existing core-pulling mechanisms generally use oil cylinders as the power source. However, the core-pulling force control of the oil cylinders is not precise. When the core slightly jams during the core-pulling process, the powerful thrust of the oil cylinder often causes the core to deform. This deformation not only affects the bending accuracy of the roof rack, but may also lead to the scrapping of the entire product, thus increasing the production cost.
[0004] Secondly, it is very inconvenient to adjust the telescopic position when changing the model of the existing core-pulling mechanism. Since the bending dimensions and shapes required for different models of roof racks are different, the core-pulling mechanism needs to be able to flexibly adjust the telescopic position to adapt to different production requirements. However, when adjusting the telescopic position of the existing core-pulling mechanism, it often requires cumbersome disassembly and reinstallation work, which not only consumes a lot of time and manpower, but also increases the operation difficulty and error rate. Summary of the Invention
[0005] Aiming at the problems existing in the prior art, the utility model provides a servo core-pulling mechanism of a bending device, which can better control the position of the nylon core, is applicable to multiple models, and solves the problems of difficult adjustment of the core-pulling position and low adjustment accuracy during the bending process of automobile roof racks. It not only significantly improves the stability of the product, reduces the error rate during the production process, but also reduces the production cost.
[0006] The utility model is realized as follows: a servo core-pulling mechanism of a bending device includes a first mounting frame and a second mounting frame arranged in the first mounting frame. The extending end of the second mounting frame is provided with a hydraulic chuck through an electric turntable, and a nylon core is horizontally arranged between the two chucks of the hydraulic chuck;
[0007] A first ball screw pair is arranged along the length direction in the first mounting frame and the second mounting frame. The mounting end of the nylon core sequentially passes through the hydraulic chuck and the electric turntable and is connected to the screw of the first ball screw pair. A first servo motor for driving the nut in the first ball screw pair to rotate is arranged on the second mounting frame.
[0008] Further, a second ball screw pair is arranged along the length direction inside the first mounting frame and the second mounting frame. A second servo motor is arranged on the end face of the first mounting frame away from the hydraulic chuck side. The output shaft of the second servo motor is connected to the screw of the second ball screw pair, and the nut of the second ball screw pair is connected to the second mounting frame.
[0009] Further, a guide rail pair is arranged on the outer wall of the second mounting frame, and the inner wall of the first mounting frame is connected to the slider of the guide rail pair. The arranged guide rail pair is used to support and guide the second mounting frame to move in a straight line direction with high precision and high reliability, reduce friction, and improve the movement efficiency.
[0010] Further, the second mounting frame includes a movable plate arranged on the side away from the hydraulic chuck, and the nut of the first ball screw pair is installed on the movable plate through a roller bearing;
[0011] A through hole is formed along the length direction on the side wall of the first mounting frame. The movable plate on the side relative to the through hole penetrates through the through hole and extends outward, and the first servo motor is installed on the movable plate extending outside the first mounting frame.
[0012] Further, the output shaft of the first servo motor and the nut of the first ball screw pair are driven by a belt.
[0013] Further, a fixed optical axis is arranged along the length direction inside the first mounting frame and the second mounting frame, and the fixed optical axis is connected to the screw of the first ball screw pair through a fixing plate. The arranged fixed optical axis and fixing plate can support the screw in the first ball screw pair and ensure the straightness during the movement process.
[0014] Further, the end of the screw in the first ball screw pair penetrates through the first mounting frame and extends toward the side away from the hydraulic chuck, and a protective sheet metal for protecting the screw is arranged on the end face of the first mounting frame.
[0015] Advantages and technical effects of the present utility model: Due to the adoption of the above technical solution, the servo motor is used to drive the screw, and the screw drives the nylon core to reciprocate, better controlling the position of the nylon core, being applicable to multiple models, and solving the problems of difficult adjustment of the core pulling position and low adjustment accuracy during the bending process of the automotive roof rack. It not only significantly improves the stability of the product, reduces the error rate during the production process, but also reduces the production cost. At the same time, the precise control of the servo motor greatly improves the production efficiency, significantly enhances the production stability, and optimizes the production process of the automotive roof rack. Description of the Drawings
[0016] Figure 1 is a three-dimensional view of the overall structure provided by an embodiment of the present utility model;
[0017] Figure 2 is a front view of the overall structure provided by an embodiment of the present utility model;
[0018] Figure 3 is Figure 2 a sectional view taken along line A-A in
[0019] Figure 4 is a schematic diagram of the internal structures of the first mounting frame and the second mounting frame provided by an embodiment of the present utility model.
[0020] In the figure: 1. First mounting frame; 1-1. Through hole; 2. Second mounting frame; 2-1. Movable plate; 3. Electric turntable; 4. Hydraulic chuck; 5. Nylon core; 6. First servo motor; 7. First ball screw pair; 8. Second servo motor; 9. Second ball screw pair; 10. Guide rail pair; 11. Fixed optical axis; 12. Fixed plate; 13. Protective sheet metal. Specific embodiments
[0021] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.
[0022] It should be noted that the orientation or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
[0023] As Figures 1 to 4 shown, the present application provides a servo core-pulling mechanism for a bending device, including a first mounting frame 1 and a second mounting frame 2 disposed within the first mounting frame 1. The protruding end of the second mounting frame 2 is provided with a hydraulic chuck 4 through an electric turntable 3, and a nylon core 5 is horizontally disposed between the two chucks of the hydraulic chuck 4;
[0024] A first ball screw pair 7 is disposed along the length direction within the first mounting frame 1 and the second mounting frame 2. The mounting end of the nylon core 5 sequentially passes through the hydraulic chuck 4 and the electric turntable 3 and is connected to the screw of the first ball screw pair 7. A first servo motor 6 for driving the nut in the first ball screw pair 7 to rotate is disposed on the second mounting frame 2.
[0025] Further, a second ball screw pair 9 is arranged along the length direction inside the first mounting frame 1 and the second mounting frame 2. A second servo motor 8 is arranged on the end face of the first mounting frame 1 away from the hydraulic chuck 4. The output shaft of the second servo motor 8 is connected to the screw of the second ball screw pair 9, and the nut of the second ball screw pair 9 is connected to the second mounting frame 2.
[0026] Further, a guide rail pair 10 is arranged on the outer wall of the second mounting frame 2, and the inner wall of the first mounting frame 1 is connected to the slider of the guide rail pair 10. The arranged guide rail pair 10 is used to support and guide the second mounting frame 2 to perform high-precision and high-reliability movement in the linear direction, reduce friction, and improve the movement efficiency.
[0027] Further, the second mounting frame 2 includes a movable plate 2-1 arranged on the side away from the hydraulic chuck 4. The nut of the first ball screw pair 7 is installed on the movable plate 2-1 through a roller bearing, and the nut of the second ball screw pair 9 is installed on the movable plate 2-1;
[0028] A through hole 1-1 is formed in the side wall of the first mounting frame along the length direction. The movable plate 2-1 on the side opposite to the through hole 1-1 penetrates through the through hole 1-1 and extends to the outside. The first servo motor 6 is installed on the movable plate 2-1 extending to the outside of the first mounting frame 1.
[0029] Further, the output shaft of the first servo motor 6 and the nut of the first ball screw pair 7 are driven by a belt.
[0030] Further, a fixed optical axis 11 is arranged along the length direction inside the first mounting frame 1 and the second mounting frame 2. The fixed optical axis 11 is connected to the screw of the first ball screw pair 7 through a fixing plate 12. The arranged fixed optical axis 11 and fixing plate 12 can support the screw in the first ball screw pair 7 and ensure the straightness during the movement process.
[0031] Further, the end of the screw in the first ball screw pair 7 penetrates through the first mounting frame 1 and extends to the side away from the hydraulic chuck 4. A protective sheet metal 13 for protecting the screw is arranged on the end face of the first mounting frame 1.
[0032] During operation, the first servo motor 6 rotates, drives the nut in the first ball screw pair 7 to rotate through belt drive, and further drives the screw rod to reciprocate along the length direction of the first mounting frame 1. The screw rod drives the nylon core 5 to reciprocate. When the position needs to be adjusted, the second servo motor 8 is driven. The second servo motor 8 drives the screw rod of the second ball screw pair 9 to rotate, and further makes the nut in the second ball screw pair 9 drive the second mounting frame 2 to reciprocate along the length direction of the first mounting frame 1. The guide rail pair 10 on the second mounting frame 2 realizes the guiding support for linear motion.
[0033] Due to the above technical solution, the servo motor is used to drive the screw rod, and the screw rod drives the nylon core 5 to reciprocate, which can better control the position of the nylon core 5, is applicable to multiple models, and solves the problems of difficult core-pulling position adjustment and low adjustment accuracy during the bending process of the car roof rack. It not only significantly improves the stability of the product, reduces the error rate during the production process, but also reduces the production cost. At the same time, the precise control of the servo motor greatly improves the production efficiency, significantly enhances the production stability, and optimizes the production process of the car roof rack.
[0034] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A servo core pulling mechanism of a bending device, characterized in that: It comprises a first mounting frame and a second mounting frame arranged inside the first mounting frame, wherein a hydraulic chuck is arranged at an extended end of the second mounting frame through an electric turntable, and a nylon core is horizontally arranged between two chucks of the hydraulic chuck; A first ball screw pair is arranged in the first mounting frame and the second mounting frame along the length direction, the mounting end of the nylon core passes through the hydraulic chuck and the electric turntable in sequence and is connected to the screw of the first ball screw pair, and the second mounting frame is provided with a first servo motor for driving the nut in the first ball screw pair to rotate.
2. The servo core-pulling mechanism of the bending equipment according to claim 1, characterized in that: A second ball screw pair is arranged in the first mounting frame and the second mounting frame along the length direction, and a second servo motor is arranged on the end face of the first mounting frame away from the hydraulic chuck side, the output shaft of the second servo motor is connected to the screw of the second ball screw pair, and the nut of the second ball screw pair is connected to the second mounting frame.
3. The servo core-pulling mechanism of the bending equipment according to claim 1 or 2, characterized in that: The outer wall of the second installation frame is provided with a guide rail pair, and the inner wall of the first installation frame is connected to the slider of the guide rail pair.
4. The servo core-pulling mechanism of the bending equipment according to claim 1, characterized in that: The second mounting frame comprises a movable plate arranged at a side away from the hydraulic chuck, and the nut of the first ball screw pair is mounted on the movable plate through a roller bearing; A through hole is formed in the side wall of the first installation frame along the length direction, and a movable plate opposite to the through hole extends through the through hole to the outside, and the first servo motor is mounted on the movable plate extending to the outside of the first installation frame.
5. The servo core-pulling mechanism of the bending equipment according to claim 1 or 4, characterized in that: The output shaft of the first servo motor and the nut of the first ball screw pair are driven by a belt.
6. The servo core-pulling mechanism of the bending equipment according to claim 1, characterized in that: A fixed optical axis is arranged in the first installation frame and the second installation frame along the length direction, and the fixed optical axis is connected to the lead screw of the first ball screw pair via a fixing plate.
7. The servo core-pulling mechanism of the bending equipment according to claim 1, characterized in that: The end of the lead screw in the first ball screw pair passes through the first mounting frame and extends toward the side away from the hydraulic chuck. A protective sheet metal for protecting the lead screw is provided on the end surface of the first mounting frame.