Automobile air conditioner pipe bending forming device

Abstract

The utility model discloses a kind of automobile air conditioner pipe fittings bending forming device, including forming base plate, the forming base plate top is fixed with forming frame, the forming frame inboard bottom end is fixed with forming plate, the forming frame outboard right end is fixed with main controller, the forming frame inboard top is provided with forming moving plate, the forming moving plate bottom is fixed with electric telescopic rod, electric telescopic rod and main controller between electrically connected, the electric telescopic rod bottom is fixed with buffer spring, the buffer spring inboard is provided with damper, the buffer spring outboard bottom end is fixed with buffer backing plate, the buffer backing plate bottom is fixed with bending piece, by realizing the buffer and overload protection of bending process, accurately control bending force, with quick change type ability, and integrated real-time monitoring and detection function, to effectively improve bending quality, protect equipment and improve production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of automotive air conditioning pipe bending technology, and in particular to an automotive air conditioning pipe bending and forming device. Background Technology

[0002] Automotive air conditioning pipes are typically composed of aluminum pipes, air conditioning hoses, and other pipe accessories. The main function of automotive air conditioning pipes is to connect the various components of the automotive air conditioning system, enabling the air conditioning system to operate in an orderly manner. Bending of automotive air conditioning pipes refers to the process of making necessary shape changes to the air conditioning pipes during the automotive manufacturing process to adapt to the interior space and design requirements of the car.

[0003] In the prior art, a pipe bending forming machine with patent publication number CN217414875U includes a worktable, a support column fixedly connected to the top of the worktable, a bracket fixedly connected to the top of the support column, a transmission mechanism fixedly connected to the top of the bracket, and a hydraulic cylinder set at the bottom of the transmission mechanism. This utility model can achieve the function of bending materials at different positions, thereby effectively improving the bending effect. However, when the bending head is pressed down, traditional devices mostly use rigid contact or simple mechanical limit, which can easily lead to the pipe being crushed, scratched on the surface, or cracked due to inaccurate pressure control. At the same time, the equipment lacks a buffer mechanism when encountering abnormal resistance, which can easily cause overload damage to the drive components (such as electric telescopic rods). Furthermore, it does not have the ability to monitor the bending force in real time, making it difficult to guarantee the yield rate. Utility Model Content

[0004] The purpose of this utility model is to provide a bending and forming device for automotive air conditioning pipes, which solves the problems of traditional devices, which often use rigid contact or simple mechanical limiting when the bending head is pressed down. These devices are prone to crushing, scratching or cracking of the pipes due to inaccurate pressure control. At the same time, the device lacks a buffer mechanism when encountering abnormal resistance, which can easily cause overload damage to the drive components (such as electric telescopic rods). Furthermore, it does not have the ability to monitor the bending force in real time, making it difficult to guarantee the yield rate.

[0005] To achieve the above objectives, an automotive air conditioning pipe bending and forming device is provided, comprising a forming base plate, a forming frame fixed to the top of the forming base plate, a forming plate fixed to the bottom inner side of the forming frame, a main controller fixed to the right outer side of the forming frame, a forming moving plate provided at the top inner side of the forming frame, an electric telescopic rod fixed to the bottom of the forming moving plate, the electric telescopic rod being electrically connected to the main controller, a buffer spring fixed to the bottom of the electric telescopic rod, a damper provided inside the buffer spring, a buffer pad fixed to the bottom outer side of the buffer spring, and a bending component fixed to the bottom of the buffer pad.

[0006] According to the aforementioned automotive air conditioning pipe bending and forming device, the top front and rear ends of the forming plate are provided with sliding grooves, and inner rods are fixed inside the two sliding grooves. Spacing plates are slidably provided at both ends of the outer sides of the two inner rods. A top plate is fixed between the two spacing plates along the longitudinal direction. Positioning plates are fixed at the lower inner ends of the multiple spacing plates. Reinforcing upper holes are penetrating through the top surfaces of the multiple positioning plates. Reinforcing lower holes are arrayed at the front and rear ends of the center of the top surface of the forming plate. The diameters of the multiple reinforcing upper holes and reinforcing lower holes are the same.

[0007] According to the aforementioned automotive air conditioning pipe bending and forming device, a clamping plate is provided at the top of each of the two top plates, and a support plate is fixed at both the front and rear ends of the outer side of the clamping plate. A positioning hole is provided on the top surface of a plurality of support plates, and the plurality of positioning holes penetrate to the inner side of the corresponding top plate. An air conditioning pipe body is nested between the inner sides of the two clamping plates.

[0008] According to the aforementioned automotive air conditioning pipe bending and forming device, an inclined plate is fixed to the right end of the inner side of the forming frame, and a camera is fixed to the left inclined side of the inclined plate. The camera is electrically connected to the main controller.

[0009] According to the aforementioned automotive air conditioning pipe bending and forming device, a control screw is rotatably connected to the upper inner side of the forming frame, the forming moving plate is connected to the outer side of the control screw, and a motor is fixed to the upper right side of the outer side of the forming frame. The output end of the motor passes through the inner side of the forming frame and is fixedly connected to the control screw through a coupling.

[0010] According to the aforementioned automotive air conditioning pipe bending and forming device, a torque sensor is fixed at the top right end of the buffer pad, and the torque sensor is electrically connected to the main controller.

[0011] According to the aforementioned automotive air conditioning pipe bending and forming device, two protective doors are rotatably connected to the outer positive side of the forming frame, and the two protective doors are arranged in a mirror image.

[0012] According to the aforementioned automotive air conditioning pipe bending and forming device, the bent part is integrally arc-shaped.

[0013] The above solution has the following advantages: By adopting a buffer structure, namely buffer springs and dampers, the instantaneous impact and interference during the downward pressing process can be absorbed, so that the bending force is applied to the pipe fittings smoothly, reducing the risk of pipe fitting deformation and damage. When encountering abnormal resistance, the buffer mechanism can effectively avoid the reaction force directly impacting the electric telescopic rod and its transmission components, preventing equipment overload damage and extending the service life of the device. By simply adjusting the position of the spacing plate, it can quickly adapt to automotive air conditioning pipe fittings of different lengths and bending point positions. Furthermore, by using the cooperation of the upper and lower reinforcement holes, the positioning plate can be firmly fixed to the forming plate using pins or bolts.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments; Figure 1 This is a front view of the forming frame of the bending and forming device for automotive air conditioning pipes according to the present invention. Figure 2 This utility model relates to a bending and forming device for automotive air conditioning pipes. Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the oblique side inside the forming frame of the bending and forming device for automotive air conditioning pipes according to this utility model; Figure 4 This utility model relates to a bending and forming device for automotive air conditioning pipes. Figure 3 Enlarged view of point B in the middle; Figure 5 This is an external overall schematic diagram of an automotive air conditioning pipe bending and forming device according to the present invention.

[0016] Legend: 1. Forming base plate; 2. Forming frame; 3. Forming plate; 4. Main controller; 5. Forming moving plate; 6. Electric telescopic rod; 7. Buffer spring; 8. Buffer pad; 9. Bending part; 10. Slide groove; 11. Inner rod; 12. Spacing plate; 13. Top plate; 14. Positioning plate; 15. Reinforced upper hole; 16. Reinforced lower hole; 17. Fixture plate; 18. Support plate; 19. Air conditioning pipe body; 20. Inclined plate; 21. Camera; 22. Control screw; 23. Motor; 24. Torque sensor; 25. Protective door. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1-5This utility model discloses a bending and forming device for automotive air conditioning pipes, comprising a forming base plate 1, a forming frame 2 fixed to the top of the forming base plate 1, a forming plate 3 fixed to the bottom inner side of the forming frame 2, a main controller 4 fixed to the right outer side of the forming frame 2, a forming moving plate 5 disposed at the top inner side of the forming frame 2, an electric telescopic rod 6 fixed to the bottom of the forming moving plate 5, the electric telescopic rod 6 being electrically connected to the main controller 4, a buffer spring 7 fixed to the bottom of the electric telescopic rod 6, a damper disposed inside the buffer spring 7, a buffer pad 8 fixed to the bottom outer side of the buffer spring 7, and a bending component 9 fixed to the bottom of the buffer pad 8. In the prior art, traditional devices often use rigid contact or simple mechanical bending when the bending head is pressed down. Mechanical limit switches are prone to causing pipe fittings to be crushed, scratched, or cracked due to inaccurate pressure control. Furthermore, the lack of a buffer mechanism when encountering abnormal resistance can easily lead to overload damage to drive components (such as the electric telescopic rod 6). Additionally, the equipment lacks the ability to monitor bending force in real time, making it difficult to guarantee a high yield rate. To address these issues, a buffer structure can be designed. The buffer spring 7 and damper can absorb the instantaneous impact and interference during the downward pressure process, allowing the bending force to be applied to the pipe fitting smoothly, reducing the risk of deformation and damage. When encountering abnormal resistance, this buffer mechanism can effectively prevent the reaction force from directly impacting the electric telescopic rod 6 and its transmission components, preventing overload damage and extending the service life of the device.

[0019] The forming plate 3 has sliding grooves 10 at both the front and rear ends of its top surface. Inner rods 11 are fixed inside the two sliding grooves 10. Spacing plates 12 slide at both ends of the outer sides of the two inner rods 11. A top plate 13 is fixed between the two spacing plates 12 along the longitudinal direction. Positioning plates 14 are fixed at the lower inner ends of the multiple spacing plates 12. Reinforcing upper holes 15 penetrate the top surface of the multiple positioning plates 14. Reinforcing lower holes 16 are arrayed at the front and rear ends of the center of the top surface of the forming plate 3. The diameters of the multiple reinforcing upper holes 15 and the reinforcing lower holes 16 are the same. This design allows the device to quickly adapt to automotive air conditioning pipes of different lengths and bending point positions by simply adjusting the position of the spacing plates 12. Furthermore, the positioning plates 14 can be firmly fixed to the forming plate 3 by using pins or bolts through the cooperation of the reinforcing upper holes 15 and the reinforcing lower holes 16.

[0020] Both top plates 13 are equipped with clamping plates 17 at their top ends. Support plates 18 are fixed to the front and rear ends of the outer side of the clamping plates 17. Positioning holes are opened on the top surface of multiple support plates 18, and multiple positioning holes penetrate into the inner side of the corresponding top plate 13. An air conditioning pipe body 19 is nested between the inner sides of the two clamping plates 17. For pipes of different diameters or shapes, special clamping plates 17 can be pre-configured. When changing the type, only the corresponding clamping plate 17 needs to be replaced, and then the positioning holes are used for positioning, which realizes rapid production changeover and shortens downtime.

[0021] An inclined plate 20 is fixed to the right side of the inner side of the forming frame 2, and a camera 21 is fixed to the left side of the inclined plate 20. The camera 21 is electrically connected to the main controller 4, which can monitor the bending process in real time or take pictures of the formed tube. Through the image processing function of the main controller 4, it can automatically detect whether the bending angle and shape meet the preset standards.

[0022] A control screw 22 is rotatably connected to the upper inner side of the forming frame 2. The forming moving plate 5 is connected to the outer side of the control screw 22. A motor 23 is fixed to the upper right side of the forming frame 2. The output end of the motor 23 passes through the inner side of the forming frame 2 and is fixedly connected to the control screw 22 through a coupling. The screw drive has high precision, high rigidity and self-locking characteristics, which can accurately control the longitudinal position of the bending head above the pipe and ensure that the relative distance between multiple bending points is accurate.

[0023] A torque sensor 24 is fixed to the top right end of the buffer pad 8. The torque sensor 24 is electrically connected to the main controller 4 and can monitor the actual force during the bending process in real time. When the torque increases abnormally, the main controller 4 can stop the equipment immediately to prevent damage to the pipe or device.

[0024] The outer side of the forming frame 2 is rotatably connected to two protective doors 25, and the two protective doors 25 are mirrored to effectively isolate the processing area.

[0025] The bending component 9 is designed with an overall arc shape. The arc shape of the bending component 9 can form a better line contact or surface contact with the outer wall of the pipe, evenly distribute the bending stress, and ensure a smooth transition at the bend and a flat inner wall.

[0026] Working principle: When using this device, first open the protective door 25. According to the length and bending position requirements of the air conditioning pipe body 19 to be processed, slide the spacing plate 12 along the slide groove 10 to the predetermined position, so that the upper reinforcing hole 15 on the positioning plate 14 is aligned with the corresponding lower reinforcing hole 16 on the forming plate 3, and insert pins or bolts for fixing. Then, install the special clamping plate 17 onto the top plate 13 through the positioning hole on the support plate 18, and embed and clamp the air conditioning pipe body 19 between the inner sides of the two clamping plates 17. After clamping is completed, close the protective door 25, start the equipment through the main controller 4, the motor 23 drives the control screw 22 to rotate, driving the forming moving plate 5 and the entire bending actuator below it to move to the target bending point above the pipe body. Then the main controller 4. The electric telescopic rod 6 extends, driving the bending component 9 to press down. During the pressing process, the buffer mechanism composed of the buffer spring 7 and the damper starts to work, ensuring that the bending force is applied smoothly to the pipe and avoiding impact. At the same time, the torque sensor 24 monitors the bending torque in real time and feeds it back to the main controller 4. If the torque exceeds the safety threshold, the main controller 4 will immediately stop the electric telescopic rod 6 to achieve overload protection. The camera 21 set on the inclined plate 20 records the entire bending process and can take pictures of the product after bending. The main controller 4 performs image analysis and automatically judges whether the bending angle and shape are qualified. After bending is completed, the electric telescopic rod 6 retracts, the bent air conditioning pipe body 19 is removed, and the equipment is ready to start the next work cycle.

[0027] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A bending and forming device for automotive air conditioning pipes, comprising: A molding base plate (1) is characterized in that a molding frame (2) is fixed at the top of the molding base plate (1), a molding plate (3) is fixed at the bottom inner side of the molding frame (2), a main controller (4) is fixed at the right outer side of the molding frame (2), a molding moving plate (5) is provided at the top inner side of the molding frame (2), an electric telescopic rod (6) is fixed at the bottom of the molding moving plate (5), the electric telescopic rod (6) is electrically connected to the main controller (4), a buffer spring (7) is fixed at the bottom of the electric telescopic rod (6), a damper is provided inside the buffer spring (7), a buffer pad (8) is fixed at the bottom outer side of the buffer spring (7), and a bending piece (9) is fixed at the bottom of the buffer pad (8).

2. The bending and forming device for automotive air conditioning pipes according to claim 1, characterized in that, The molding plate (3) has grooves (10) at both the front and rear ends of its top surface. Inner rods (11) are fixed inside the two grooves (10). Spacing plates (12) slide at both ends of the two inner rods (11). A top plate (13) is fixed between the two spacing plates (12) along the longitudinal direction. Positioning plates (14) are fixed at the lower inner ends of the multiple spacing plates (12). Reinforcing upper holes (15) penetrate the top surface of the multiple positioning plates (14). Reinforcing lower holes (16) are arrayed at the front and rear ends of the center of the top surface of the molding plate (3). The diameters of the multiple reinforcing upper holes (15) and the reinforcing lower holes (16) are the same.

3. The bending and forming device for automotive air conditioning pipes according to claim 2, characterized in that, The top of each of the two top plates (13) is provided with a clamp plate (17), and the front and rear ends of the clamp plate (17) are fixed with support plates (18). The top surfaces of the multiple support plates (18) are provided with positioning holes, and the multiple positioning holes penetrate to the inner side of the corresponding top plate (13). An air conditioning pipe body (19) is nested between the inner sides of the two clamp plates (17).

4. The bending and forming device for automotive air conditioning pipes according to claim 1, characterized in that, An inclined plate (20) is fixed to the right side of the inner side of the molding frame (2), and a camera (21) is fixed to the left side of the inclined plate (20). The camera (21) is electrically connected to the main controller (4).

5. The bending and forming device for automotive air conditioning pipes according to claim 1, characterized in that, The upper inner side of the forming frame (2) is rotatably connected to a control screw (22), the forming moving plate (5) is connected to the outside of the control screw (22), and a motor (23) is fixed on the upper right side of the outside of the forming frame (2). The output end of the motor (23) extends through to the inside of the forming frame (2) and is fixedly connected to the control screw (22) through a coupling.

6. The bending and forming device for automotive air conditioning pipes according to claim 1, characterized in that, A torque sensor (24) is fixed to the top right end of the buffer pad (8), and the torque sensor (24) is electrically connected to the main controller (4).

7. The bending and forming device for automotive air conditioning pipes according to claim 1, characterized in that, The outer front side of the molding frame (2) is rotatably connected to two protective doors (25), and the two protective doors (25) are mirror images of each other.

8. The bending and forming device for automotive air conditioning pipes according to claim 1, characterized in that, The bending component (9) is set in an overall arc shape.

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