Feeding detection device for door plate welding
By setting detection rods and detection contacts on the conveyor table, the consumption of door panels can be monitored in real time, which solves the problem of mismatch between the automatic door panel feeding device and the welding process, and achieves continuous and accurate feeding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-03-13
AI Technical Summary
The existing automatic door panel feeding device cannot be matched with the subsequent welding process, which easily leads to material jamming or accumulation when welding is paused, affecting the continuity and accuracy of feeding.
By setting up detection rods and detection contacts on the conveyor table, and using the detection contacts to electrically connect with the power components, the consumption of door panels can be monitored in real time. Automatic feeding is only performed when door panels are consumed in subsequent welding processes, avoiding feeding when welding is paused, thus ensuring the continuity and accuracy of feeding.
It achieves accurate matching between door panel material feeding and welding processes, avoiding material jamming or piling up, and improving the continuity and accuracy of automatic feeding.
Smart Images

Figure CN223990623U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of door panel material feeding, specifically a material feeding and detection device for door panel welding. Background Technology
[0002] During the manufacturing of train door panels, multiple components need to be welded onto them. To improve welding efficiency and convenience, existing workshops typically utilize mechanical equipment for automated door panel feeding, significantly reducing manual intervention, improving overall processing efficiency and continuity, and saving labor costs. However, existing automated door panel feeding devices generally only allow for periodic automatic feeding at certain time intervals, failing to better match the actual welding process. If a subsequent welding process malfunctions and welding is interrupted, the feeding device cannot adjust the feeding interval in time, easily leading to door panel jamming or stacking, affecting the continuity of door panel feeding and reducing its compatibility with the welding process. Utility Model Content
[0003] The purpose of this utility model is to provide a material feeding and detection device for door panel welding, which can solve the technical problem that the automatic door panel feeding device cannot be matched with the subsequent welding situation. By adjusting the feeding interval in real time according to the material usage of the subsequent welding, the matching effect with the material usage of the welding process is improved, and the continuity and accuracy of automatic feeding are guaranteed.
[0004] To achieve the above objectives, this utility model employs the following technical solution:
[0005] A door panel welding material feeding and inspection device includes a detection rod mounted on a conveyor table. Multiple feeding rollers are rotatably connected to the conveyor table. A storage platform for storing door panels is provided on one side of the conveyor table. A support is provided above the storage platform, and a feeding rack is slidably connected to the support along its lateral direction. The feeding rack is used to transfer door panels from the storage platform to the conveyor table. A power component is provided on the support to drive the feeding rack to slide laterally. The detection rod is rotatably connected to the conveyor table. Detection contacts that cooperate with the detection rod are provided on the conveyor table. The detection contacts are electrically connected to the power component. When a door panel passes the detection contacts, it drives the detection rod to rotate, thereby separating it from the detection contacts.
[0006] Furthermore, the conveyor platform is provided with a stand, the detection rod rotates on the stand, and a contact block is provided on one side of the detection rod. When the detection rod is in a vertical state, the contact block contacts the detection contact point.
[0007] Furthermore, a compression spring is provided between the detection rod and the upright.
[0008] Furthermore, the top of the feeding rack is provided with a slider, which is slidably connected to the support, and the power component is used to drive the slider to slide relative to the support.
[0009] Furthermore, the power assembly includes a motor and a screw. The motor is fixed on the bracket, and the screw is fixed on the output shaft of the motor. The screw passes through the slider and is threadedly connected to it.
[0010] Furthermore, a lifting platform is vertically slidably connected above the storage platform, the door panels are stacked on the lifting platform, and the bottom of the feeding rack is provided with multiple suction blocks that attract the door panels.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. The structure of this utility model is achieved by setting a detection rod and a detection contact point on the conveyor table. The detection contact point is electrically connected to the power component. When a door panel is missing, the detection rod contacts the detection contact point, thereby causing the power component to receive an electrical signal and start, which drives the loading rack to move laterally and automatically transfer the door panel on the storage platform to the conveyor table for loading. This enables timely monitoring of the door panel consumption on the conveyor table. Automatic loading is only performed when the door panel is consumed in the subsequent welding process, thus ensuring accurate matching with the subsequent welding process. If the welding process is interrupted due to an abnormality, loading will not continue, improving the continuity and accuracy of loading and avoiding material jamming or accumulation.
[0013] 2. The detection rod is rotatably connected to the conveyor table. When the door panel passes the detection contact, it drives the detection rod to rotate and separate from the detection contact. This structure allows the door panel to move along the conveyor table under the action of the feeding roller and pass the detection contact. The door panel will drive the detection rod to rotate and separate from the detection contact, so that the power component will not trigger the feeding action. Only when the subsequent welding process consumes the door panel and causes the door panel to pass the detection contact, the detection rod will rotate and reset under the action of gravity due to the removal of the obstruction of the door panel and re-contact the detection contact. Only then will the power component be driven to perform automatic feeding. This makes the matching of the triggering of the detection contact with the use of the door panel more accurate and further ensures the accuracy of automatic feeding. Attached Figure Description
[0014] Appendix Figure 1 This is a three-dimensional structural diagram of the present invention.
[0015] Appendix Figure 2 This is the right view of this utility model.
[0016] Appendix Figure 3 This is an appendix to this utility model. Figure 2 A cross-sectional view along the AA direction.
[0017] The labels shown in the attached diagram:
[0018] 1. Conveyor table; 2. Detection rod; 3. Feeding roller; 4. Door panel; 5. Storage platform; 6. Support; 7. Feeding rack; 8. Detection contact; 9. Stand; 10. Contact block; 11. Compression spring; 12. Slider; 13. Motor; 14. Screw; 15. Lifting platform; 16. Suction block. Detailed Implementation
[0019] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined in this application.
[0020] Reference Figure 1 and Figure 2This utility model describes a feeding and detection device for door panel welding. The main structure includes a detection rod 2 mounted on a conveyor table 1. The conveyor table 1 is used to transport door panels 4 to subsequent welding processes, ensuring continuous automatic feeding of the door panels 4. Multiple feeding rollers 3 are rotatably connected to the conveyor table 1 via bearings. The feeding rollers 3 rotate continuously under the drive of a motor 13. The door panels 4 are placed on the feeding rollers 3, enabling automatic movement of the door panels 4 along the conveyor table 1. A storage platform 5 for storing the door panels 4 is provided on one side of the conveyor table 1. The door panels 4 are stacked and stored on the storage platform 5. A support 6 is provided above the storage platform 5. The bottom of the support 6 is fixed to the ground by multiple legs. A feeding rack 7 is slidably connected to the support 6 laterally. The feeding rack 7 feeds material from the storage platform... The loading rack 7 moves from above the storage platform 5 to above the conveyor platform 1. It transfers the door panel 4 from the storage platform 5 to the conveyor platform 1. After connecting with the door panel 4 on the storage platform 5, the loading rack 7 moves the door panel 4 onto the conveyor platform 1, achieving automatic loading of the door panel 4. The support 6 is equipped with a power component that drives the loading rack 7 to slide laterally. This power component can be any existing power structure, as long as it can drive the loading rack 7 to slide laterally. The detection rod 2 is rotatably connected to the conveyor platform 1 via a pin or hinge. When no door panel 4 passes by and interferes with it, the detection rod 2 is in a vertical state under the influence of gravity. The conveyor platform 1 is equipped with a detection contact 8 that works in conjunction with the detection rod 2. The detection contact 8 is electrically connected to the power component. The detection contact 8 is a sensor structure electrically connected to the power assembly. Specifically, it can be a pressure sensor or any contact sensor of any structure. Specifically, it can be a pressure sensor, model LFC-20-4M-H11, manufactured by Shenzhen Lizhun Sensing Technology Co., Ltd. When the door panel 4 passes the detection contact 8, it drives the detection rod 2 to rotate, thus separating it from the detection contact 8. With this structure, when there are still door panels 4 on the conveyor table 1, the door panel 4 drives the detection rod 2 to rotate. Specifically, a roller can be installed at the bottom of the detection rod 2. The roller makes contact with the rotating door panel 4, reducing the possibility of scratches or damage to the door panel 4, causing it to separate from the detection contact 8. Therefore, the power assembly does not receive an electrical signal and will not start feeding. However, when the door panel 4 is subsequently welded... When the material is consumed in the next process and continues to move backward along the conveyor table 1, a material shortage occurs at the detection contact 8. At this time, the detection rod 2, due to the lack of obstruction from the door panel 4, is in a vertical state under the action of gravity and contacts the detection contact 8. At this time, the power component receives an electrical signal and drives the feeding rack 7 to move laterally, realizing the automatic feeding and replenishment of the door panel 4. This makes the feeding situation better match the welding consumption of the door panel 4. If a subsequent welding process fails and welding is suspended, the door panel 4 on the conveyor table 1 will not be consumed automatically, and the door panel 4 will not continue to be fed, avoiding the jamming or accumulation of the door panel 4. This ensures the continuity and accuracy of automatic feeding, greatly improves the matching with subsequent welding processes, and ensures the accuracy of automatic feeding.
[0021] Preferably, a support frame 9 is fixed to the conveyor table 1 by welding or bolts. The support frame 9 is located above the conveyor table 1 and can be inverted L-shaped, with the vertical part connected to the conveyor table 1 and the horizontal part located above the conveyor table 1. The detection rod 2 rotates on the horizontal part of the inverted L-shape of the support frame 9 by a pin or hinge. A contact block 10 is fixed to one side of the detection rod 2 by welding or bolts. When the detection rod 2 is in a vertical state, the contact block 10 contacts the detection contact point 8. With this structure, the detection rod 2 is in a vertical state under the action of gravity, and the contact block 10 on one side can contact the detection contact point 8 to ensure accurate triggering of the detection contact point 8. No additional reset structure is required, making the rotation and reset of the detection rod 2 more convenient and accurate.
[0022] Preferred, refer to Figure 3 A compression spring 11 is provided between the detection rod 2 and the upright frame 9. The compression spring 11 is compressed when the door panel 4 drives the detection rod 2 to rotate. When the door panel 4 continues to be transported backward and leaves the detection rod 2 under the action of the feeding roller 3, the detection rod 2 quickly resets under the action of gravity and the reverse elastic force of the compression spring 11, making the reset rotation of the detection rod 2 faster and more accurate, and further improving the response speed and accuracy of the reset rotation of the detection rod 2.
[0023] Preferably, the top of the feeding rack 7 is fixed with a slider 12 by welding or bolts. The slider 12 is slidably connected to the bracket 6. The power component is used to drive the slider 12 to slide relative to the bracket 6. Specifically, a groove is provided on the bracket 6, and the slider 12 is slidably connected in the groove, making the sliding structure between the feeding rack 7 and the bracket 6 more stable.
[0024] Preferably, the power assembly includes a motor 13 and a screw 14. The detection contact 8 is electrically connected to the motor 13. The motor 13 is fixed to the bracket 6 by welding or bolting. The screw 14 is fixed to the output shaft of the motor 13 by welding or bolting. The screw 14 passes through the slider 12 and is threadedly connected to it. With this structure, when the motor 13 receives an electrical signal, it drives the screw 14 to rotate, so that the slider 12 and the feeding rack 7 connected to it slide laterally relative to the bracket 6. The sliding drive of the feeding rack 7 is more accurate and faster, and the response of the detection contact 8 is more timely and accurate.
[0025] Preferably, a lifting platform 15 is vertically slidably connected above the storage platform 5. Specifically, the lifting platform 15 can be driven to move up and down using a cylinder or a hydraulic cylinder. The door panels 4 are stacked on the lifting platform 15. The bottom of the feeding rack 7 is provided with multiple suction blocks 16 that attract the door panels 4. Specifically, the suction blocks 16 can attract the door panels 4 under the action of magnetic force or vacuum suction. When the lifting platform 15 rises, the door panels 4 at the top of the stack rise and attract the multiple suction blocks 16 at the bottom of the feeding rack 7. Afterwards, when the feeding rack 7 moves laterally, it can drive the top door panels 4 to move onto the conveyor table 1. The cooperation of the two makes the automatic feeding of the door panels 4 smoother and more efficient.
[0026] Working Principle: This invention features a detection rod 2 and a detection contact 8 on the conveyor table 1. The detection contact 8 is electrically connected to the power assembly. When the door panel 4 is missing, the detection rod 2 contacts the detection contact 8, triggering the power assembly to receive an electrical signal and start. This drives the loading rack 7 to move laterally, automatically transferring the door panel 4 from the storage platform 5 to the conveyor table 1 for loading. This allows for timely monitoring of the consumption of door panels 4 on the conveyor table 1. Automatic loading only occurs when door panels 4 are consumed in subsequent welding processes, ensuring accurate matching with subsequent welding operations. Loading will not resume if welding is interrupted due to an abnormality, improving the continuity and accuracy of loading and preventing jamming or material accumulation. The detection rod 2 is rotatably connected to the conveyor table 1. When the door panel 4 passes the detection contact 8, it drives the detection rod 2 to rotate and separate from the detection contact 8. This structure allows the door panel 4 to move along the conveyor table 1 under the action of the feeding roller 3 and pass the detection contact 8. The door panel 4 will drive the detection rod 2 to rotate and separate from the detection contact 8, so that the power component will not trigger the feeding action. Only when the subsequent welding process consumes the door panel 4 and causes the door panel 4 to pass the detection contact 8, the detection rod 2 will rotate and reset under the action of gravity because it is no longer blocked by the door panel 4, and then re-contact the detection contact 8. Only then will the power component be driven to perform the action to automatically feed the door panel 4. This makes the matching between the triggering of the detection contact 8 and the use of the door panel 4 more accurate, and further ensures the accuracy of automatic feeding.
Claims
1. A feeding detection device for door panel welding, comprising a detection rod (2) arranged on a conveying table (1), a plurality of feeding rollers (3) being rotatably connected to the conveying table (1), and a storage table (5) for storing door panels (4) being arranged on one side of the conveying table (1), characterized in that: The upper portion of the storage table (5) is provided with a support (6), the upper feeding frame (7) is connected to the support (6) in a transverse sliding manner, the upper feeding frame (7) is used for transferring the door plate (4) on the storage table (5) to the conveying table (1), the support (6) is provided with a power assembly for driving the upper feeding frame (7) to slide in a transverse direction, the detection rod (2) is rotatably connected to the conveying table (1), the conveying table (1) is provided with a detection contact (8) used in cooperation with the detection rod (2), the detection contact (8) is electrically connected to the power assembly, and the detection rod (2) is driven to rotate when the door plate (4) passes through the detection contact (8) so as to be separated from the detection contact (8).
2. The feeding detection device for door panel welding according to claim 1, characterized in that: The conveying table (1) is provided with a vertical stand (9), the detection rod (2) is rotatable on the vertical stand (9), one side of the detection rod (2) is provided with a contact block (10), and the contact block (10) is in contact with the detection contact (8) when the detection rod (2) is in a vertical state.
3. The feeding detection device for door panel welding according to claim 2, characterized in that: The detection rod (2) and the vertical stand (9) are provided with a compression spring (11).
4. The feeding detection device for door panel welding according to claim 1, characterized in that: The top of the upper feeding frame (7) is provided with a sliding block (12), the sliding block (12) is connected to the support (6) in a sliding manner, and the power assembly is used for driving the sliding block (12) to slide relative to the support (6).
5. The feeding detection device for door panel welding according to claim 4, characterized in that: The power assembly comprises a motor (13) and a screw rod (14), the motor (13) is fixed to the support (6), the screw rod (14) is fixed to the output shaft of the motor (13), and the screw rod (14) penetrates through the sliding block (12) and is threadedly connected to the sliding block (12).
6. The feeding detection device for door panel welding according to claim 1, characterized in that: The upper portion of the storage table (5) is provided with a support (6), the upper feeding frame (7) is connected to the support (6) in a transverse sliding manner, the upper feeding frame (7) is used for transferring the door plate (4) on the storage table (5) to the conveying table (1), the support (6) is provided with a power assembly for driving the upper feeding frame (7) to slide in a transverse direction, the detection rod (2) is rotatably connected to the conveying table (1), the conveying table (1) is provided with a detection contact (8) used in cooperation with the detection rod (2), the detection contact (8) is electrically connected to the power assembly, and the detection rod (2) is driven to rotate when the door plate (4) passes through the detection contact (8) so as to be separated from the detection contact (8).