A pin welding device
By setting a support cylinder and a rotary drive assembly at the end of the robotic arm, combined with image acquisition equipment, real-time monitoring and precise control of the pin welding process are achieved, solving the problem that existing devices cannot detect in real time, and improving welding quality and adaptability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG ZHONGCHENG SLIDING BEARING TECH CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-31
AI Technical Summary
Existing robotic arm welding devices lack real-time visual inspection capabilities, making it difficult to flexibly adapt to welding needs, resulting in inconsistent welding quality and difficulty in meeting the requirements for high precision and high efficiency.
A support cylinder, a rotary drive assembly, and an image acquisition device are installed at the end of the robotic arm. The rotary drive assembly drives the image acquisition device to adjust the angle, thereby enabling real-time monitoring and precise control of the welding process.
It improves the monitoring accuracy of welding quality and the adaptability of the device, enabling it to handle pin welding tasks of different shapes and positions, and enhancing the flexibility and stability of the welding process.
Smart Images
Figure CN224574952U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of welding equipment technology, specifically a pin welding device. Background Technology
[0002] In modern industrial manufacturing, pin welding is a critical process in the production of many mechanical structures and equipment. Traditional pin welding typically relies on manual operation, which is not only inefficient but also highly susceptible to human error, making it difficult to guarantee consistency and stability in weld quality. Furthermore, manual welding often has significant limitations when dealing with complex structures or high-precision requirements, easily leading to welding defects such as uneven welds and misaligned weld positions. With the continuous development of automation technology, robotic arm welding technology has gradually been introduced into the field of pin welding to improve welding efficiency and quality.
[0003] However, most existing robotic arm welding devices lack real-time visual inspection capabilities for the welding process, or in other words, they lack a real-time adjustable visual inspection structure to flexibly adapt to welding requirements and ensure accurate image acquisition angles. This makes it impossible to monitor welding quality in real time during the welding process, thus failing to meet the demands for high-precision and high-efficiency welding. Therefore, developing a pin welding device capable of real-time monitoring and precise control of the welding process is of significant practical importance for improving welding quality and production efficiency. Summary of the Invention
[0004] To solve the above-mentioned technical problems, this utility model relates to a pin welding device. This device has a simple and reliable structure, effectively solves the aforementioned technical problems, and is suitable for widespread use. To achieve the above objectives, this utility model is implemented through the following technical solution: A pin welding device includes a robotic arm with a support cylinder at its end. A welding torch extends forward from the inner side of the support cylinder. A support plate is provided on the front side of the support cylinder, and a rotary drive assembly is provided on the front side of the support plate. The rotary drive assembly includes a rotatable driven wheel. The rod of the welding torch extends out from the inner hole of the driven wheel. A coaxial support ring is fixedly connected to the front side of the driven wheel. Mounting plates are symmetrically provided on the left and right sides of the support ring. An image acquisition device is provided on the front side of the mounting plate away from the support ring, and the image acquisition end of the image acquisition device faces the welding port of the welding torch.
[0005] Based on the above scheme and as a preferred embodiment of the above scheme: the rotary drive assembly further includes a drive motor, a drive wheel, a timing belt, a positioning seat, and a support shaft seat. The drive motor is located on the front side of the support plate, and the output shaft of the drive motor is connected to the drive wheel. The drive wheel and the driven wheel rotate synchronously through the timing belt. The positioning seat covers the outside of the drive motor, and the output shaft of the drive motor passes through the through hole of the positioning seat. The rear side of the support shaft seat is fixedly connected to the support plate, and the driven wheel is sleeved on the outside of the front shaft of the support shaft seat and rotates with it.
[0006] Based on the above solution and as a preferred embodiment, the solution further includes a connecting seat, which is U-shaped. The rear side plate of the connecting seat has bolt mounting holes, and the mounting plate has waist-shaped holes. The bolt mounting holes are used to install positioning bolts. The screw of the positioning bolt passes through the waist-shaped holes and cooperates with a nut to fix the connecting seat. The front side plate of the connecting seat has several bolt connection holes, and the front side plate of the connecting seat is used to connect with the body of the image acquisition device.
[0007] Based on the above scheme and as a preferred embodiment of the above scheme: the rear plate of each of the connecting seats is provided with at least two positioning bolts.
[0008] Based on the above scheme and as a preferred embodiment of the above scheme: the mounting plate extends from the end closer to the support ring to the end farther away from the support ring and gradually tilts forward.
[0009] The significant and beneficial technical advantages of this invention compared to existing technologies are as follows: The pin welding device of this invention achieves real-time monitoring and precise control of the welding process by incorporating a support cylinder, a rotary drive assembly, and an image acquisition device at the end of the robotic arm. The rotary drive assembly enables the image acquisition device to adjust its angle, allowing it to adjust the shooting angle in real time according to the position and shape of the weld joint, thereby obtaining clearer and more comprehensive welding images. This adjustable rotary structure not only improves the monitoring accuracy of welding quality but also enhances the adaptability of the device, enabling it to handle pin welding tasks of different shapes and positions. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the overall structure of the device; Figure 2 This is a schematic diagram of the rotary drive component structure; Figure 3 This is a schematic diagram of the connector in Embodiment 2. Detailed Implementation
[0011] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. However, the specific implementation methods and embodiments described below are for illustrative purposes only and are not intended to limit the present invention.
[0012] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 The directions or positional relationships shown are for the purpose of describing this utility model only, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0013] In the description of this application, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated.
[0014] Example 1 To solve the above technical problems, such as Figure 1-2 As shown, this embodiment designs a pin welding device, including a robotic arm 1. The end of the robotic arm 1 is provided with a support cylinder 2. A welding torch 3 extends forward from the inner side of the support cylinder 2. A support plate 4 is provided on the front side of the support cylinder 2. A rotary drive assembly is provided on the front side of the support plate 4. This design provides a stable mounting platform for the rotary drive assembly, allowing the corresponding welding assembly to move freely with the robotic arm 1 to adapt to welding requirements. The design of the welding torch 3 extending from the front end makes the welding operation more flexible and can reach narrow or hard-to-reach welding positions.
[0015] The rotary drive assembly includes a rotatable driven wheel 5. The rod of the welding torch 3 extends from the inner hole of the driven wheel 5. A coaxial support ring 6 is fixedly connected to the front side of the driven wheel 5. Mounting plates 16 are symmetrically arranged on the left and right sides of the support ring 6. An image acquisition device 7 is arranged on the front side of the end of the mounting plate 16 away from the support ring 6. The image acquisition end of the image acquisition device 7 faces the welding port of the welding torch 3. The image acquisition device 7 can use an HDR camera to capture more details in high-contrast scenes, which is suitable for environments with drastic changes in light during welding. It can simultaneously process details in bright and dark areas, avoiding overexposure or underexposure. The introduction of the rotary drive assembly allows the image acquisition device 7 to adjust its angle in real time according to welding requirements and capture details in the welding process in real time. This provides intuitive visual feedback for monitoring welding quality, helps to detect welding defects in time and make adjustments, thereby improving the overall welding quality and increasing the flexibility and adaptability of welding. The symmetrical arrangement of the image acquisition devices 7 on both sides allows the welding point to be captured from two different angles at the same time. This multi-angle capture can provide a more comprehensive image of the welding process and avoid visual blind spots caused by shooting from a single angle.
[0016] In a further preferred embodiment, the rotary drive assembly further includes a drive motor 8, a drive wheel 9, a timing belt 10, a positioning seat 11, and a support shaft seat 12. The drive motor 8 is located on the front side of the support plate 4, and its output shaft is connected to the drive wheel 9. The drive wheel 9 and the driven wheel 5 rotate synchronously through the timing belt 10. The positioning seat 11 covers the outside of the drive motor 8, and the output shaft of the drive motor 8 passes through the through hole of the positioning seat 11. The rear side of the support shaft seat 12 is fixedly connected to the support plate 4. The driven wheel 5 is sleeved on the outside of the front axle of the support shaft seat 12 and rotates in cooperation with it. By connecting the output shaft of the drive motor 8 to the drive wheel 9, the power is effectively transmitted, ensuring that the rotary drive assembly can stably drive the driven wheel 5 to rotate, thereby driving the image acquisition device 7 to make precise angle adjustments. The use of the timing belt 10 ensures the rotational synchronicity between the drive wheel 9 and the driven wheel 5, enabling precise control of the rotation angle of the image acquisition device 7 and improving the accuracy and stability of welding monitoring.
[0017] In this embodiment, it is further preferred that the mounting plate 16 extends from the end near the support ring 6 to the end away from the support ring 6 and gradually tilts forward. This tilting design allows the image acquisition device 7 on the mounting plate 16 to be aligned with the welding point at a better angle, thereby better capturing the details of the welding process.
[0018] Example 2 Further improvements can be made based on the above embodiments, such as... Figure 3As shown, the device also includes a connecting seat 13, which is U-shaped. The U-shaped connecting seat 13 provides a stable and compact mounting platform. The rear side plate of the connecting seat 13 has bolt mounting holes, and the mounting plate 16 has waist-shaped holes 15. The bolt mounting holes are used to install positioning bolts 14. The screw of the positioning bolt 14 passes through the waist-shaped hole 15 and cooperates with the nut to fix the connecting seat 13. The front side plate of the connecting seat 13 has several bolt connection holes. The front side plate of the connecting seat 13 is used to connect with the body of the image acquisition device 7. The operator can loosen the positioning bolts 14 to adjust the position of the connecting seat 13 on the mounting plate 16 to achieve the optimal installation angle and position. After adjustment, the connecting seat 13 is firmly fixed to the mounting plate 16 by tightening the two positioning bolts 14. This design improves the flexibility and adaptability of the device.
[0019] In this embodiment, it is further preferred that each of the connecting seats 13 has at least two positioning bolts 14 on its rear side plate. Setting at least two positioning bolts 14 can ensure that the connecting seat 13 is more securely fixed on the mounting plate 16, and avoid the displacement of the connecting seat 13 due to the possible loosening or failure of a single bolt.
[0020] The above embodiments are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made by those skilled in the art based on the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.
Claims
1. A pin shaft welding apparatus characterized by: The device includes a robotic arm, the end of which is provided with a support cylinder. A welding torch extends forward from the inner side of the support cylinder. A support plate is provided on the front side of the support cylinder. A rotary drive assembly is provided on the front side of the support plate. The rotary drive assembly includes a rotatable driven wheel. The rod of the welding torch extends out from the inner hole of the driven wheel. A coaxial support ring is fixedly connected to the front side of the driven wheel. Mounting plates are symmetrically provided on the left and right sides of the support ring. An image acquisition device is provided on the front side of the mounting plate away from the support ring. The image acquisition end of the image acquisition device faces the welding port of the welding torch.
2. A pin welding apparatus as claimed in claim 1, wherein: The rotary drive assembly also includes a drive motor, a drive wheel, a timing belt, a positioning seat, and a support shaft seat. The drive motor is located on the front side of the support plate, and its output shaft is connected to the drive wheel. The drive wheel and the driven wheel rotate synchronously through the timing belt. The positioning seat covers the outside of the drive motor, and the output shaft of the drive motor passes through the through hole of the positioning seat. The rear side of the support shaft seat is fixedly connected to the support plate, and the driven wheel is sleeved on the outside of the front shaft of the support shaft seat and rotates in cooperation with it.
3. A pin welding apparatus as defined in claim 1, wherein: It also includes a connecting seat, which is U-shaped. The rear side plate of the connecting seat is provided with bolt mounting holes, and the mounting plate is provided with waist-shaped holes. The bolt mounting holes are used to install positioning bolts. The screw of the positioning bolt passes through the waist-shaped hole and cooperates with the nut to fix the connecting seat. The front side plate of the connecting seat is provided with several bolt connection holes. The front side plate of the connecting seat is used to connect with the body of the image acquisition device.
4. A pin welding device according to claim 3, wherein: Each of the connecting seats has at least two positioning bolts on its rear side plate.
5. A pin welding apparatus as defined in claim 1, wherein: The mounting plate extends from the end closest to the support ring to the end furthest from the support ring and gradually tilts forward.