Nozzle leakage-proof detection mechanism of robot automatic welding system
By setting proximity switches and installation components in the robot automatic welding system, the automatic judgment and alarm functions of nozzles are realized, which solves the problem of nozzle drop or misinstallation, improves welding quality and saves the waste of equipment CT.
Patent Information
- Application Number
- CN202421034753.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-05-13
AI Technical Summary
In robotic automatic welding systems, nozzles are prone to falling or missing, resulting in insufficient protective gas at the weld, resulting in poor problems such as bubbles and pores in the weld, and reducing welding quality.
Design a nozzle leakage detection mechanism of a robot automatic welding system, using proximity switch and installation components, and is set on the gun cleaning mechanism. The proximity switch input signal is used to judge whether the nozzle exists. If it does not exist, the alarm will stop to avoid the nozzle. Drop or miss.
It realizes automatic judgment of whether the nozzle exists, reduces the drop or misinstallation of nozzles, avoids the occurrence of large-scale defective parts caused by personnel inspection errors, improves welding quality, and does not increase the workload of the robot. The waste of equipment CT.
Smart Images
Figure CN222429700U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of robot automatic welding, and in particular to a nozzle leakage prevention detection mechanism of a robot automatic welding system. Background Art
[0002] Reference Figure 1 The gooseneck welding gun 7 mainly includes components such as a nozzle 3, a conductive nozzle 71, a conductive nozzle seat 72 and a gooseneck elbow 73.
[0003] The main function of the nozzle 3 is to ensure that the protective gas flows out through the nozzle 3 to form a good protective gas hood covering the molten pool and the arc, so that the weld is well formed. The nozzle 3 is installed through an insulating sleeve, so even if it touches the weldment, it will not cause arcing.
[0004] The main function of the conductive tip 71 is to conduct current to the welding wire. During the welding process, the conductive tip 71 is constantly rubbed against the welding wire, so it is easily worn and needs to be replaced regularly. When replacing the conductive tip 71, the nozzle 3 needs to be removed first before replacing the conductive tip 71, so the nozzle 3 is often missing.
[0005] Secondly, during the automatic operation of the robot automatic welding system, there may be a certain friction or interference between the welding gun and the fixture, which may cause the nozzle 3 to loosen or fall off.
[0006] During the use of the gooseneck welding gun 7, the nozzle 3 should be checked at any time to see if it is blocked or dropped, so as to avoid the nozzle 3 being blocked or dropped, resulting in insufficient shielding gas at the weld, bubbles, pores and other defects in the weld. Therefore, the robot automatic welding system needs to go to the gun cleaning mechanism regularly to clean the spatter in the nozzle 3, but when the robot automatic welding system cleans the nozzle 3, there is also the possibility that the nozzle 3 will drop, resulting in abnormal weld formation.
[0007] With respect to the above-mentioned related technologies, the inventors believe that during the use of a gooseneck welding gun, the nozzle may fall off or be missed, resulting in insufficient shielding gas at the weld, which may easily cause bubbles and pores in the weld, reducing the welding quality. Utility Model Content
[0008] In order to reduce the occurrence of nozzle falling or missing installation, thereby improving welding quality, the present application provides a nozzle leak prevention detection mechanism for a robot automatic welding system.
[0009] The present application provides a robot automatic welding system nozzle leak detection mechanism adopts the following technical solution:
[0010] A nozzle leak detection mechanism for a robot automatic welding system, comprising a proximity switch and a mounting assembly, wherein the proximity switch is arranged on a gun cleaning mechanism through the mounting assembly;
[0011] The proximity switch is arranged toward the nozzle, and the proximity switch is electrically connected to the alarm and the automatic control system; the mounting assembly includes a mounting head and a mounting bracket, the mounting head is fixedly connected to the gun cleaning mechanism, the mounting bracket is bent, one end of the mounting bracket is connected to the side wall of the mounting head, and the other end of the mounting bracket is provided with a mounting hole, the head of the proximity switch passes through the mounting hole and is locked on the mounting bracket by a nut.
[0012] By adopting the above technical solution, the robot automatic welding system will regularly replace the conductive nozzle and clean the nozzle. A proximity switch is set on the gun cleaning mechanism. Every time the robot cleans the nozzle or replaces the conductive nozzle, a signal is input to the PLC through the proximity switch to determine whether the nozzle exists. If the nozzle exists, the robot automatically returns to the origin after the cleaning work is completed and waits for the task. If the nozzle does not exist, the robot will immediately alarm and stop, waiting for relevant personnel to confirm the problem and deal with it, which helps to reduce the occurrence of nozzle falling or missing installation, realizes automatic judgment, and the equipment automatically alarms and stops when abnormal, thereby avoiding the production of large quantities of defective parts due to errors in personnel inspection and improving welding quality.
[0013] In addition, by performing inspections during the robot's regular working process, the robot's workload will not be increased, thus avoiding the waste of equipment CT.
[0014] Optionally, the mounting bracket is bent to form a first vertical section, a horizontal section, and a second vertical section which are connected in sequence, the first vertical section is located below the second vertical section and is shorter than the second vertical section, the first vertical section is fixed to the mounting head by bolts, and the mounting hole is opened on the side wall at the top of the second vertical section.
[0015] By adopting the above technical solution, it is convenient to install the bracket to realize the connection between the mounting head and the proximity switch, and the structure is simple and beautiful.
[0016] Optionally, a plurality of installation notches are provided at the bottom end of the first vertical section, the installation notches are arranged in an arc shape, and the first vertical section can be inserted into the installation notches from top to bottom and clamped on the bolts, and the bolts pass through the installation notches and fix the first vertical section to the mounting head.
[0017] By adopting the above technical solution, when installing the proximity switch, first insert the first vertical section from top to bottom into the installation notch and clamp it on the bolt, and tighten the bolt, and then pass the head of the proximity switch through the installation hole and fix it with a nut, which is simple and convenient to operate.
[0018] Optionally, the top of the second vertical section is arranged in an arc shape.
[0019] By adopting the above technical solution, workers are less likely to scratch their hands when holding the installation bracket for operation, which helps to improve safety.
[0020] Optionally, a hand-held ring is coaxially arranged and fixedly connected to the tail of the proximity switch, and a fishing net groove is provided on the peripheral side wall of the hand-held ring.
[0021] By adopting the above technical solution, the hand-held ring provides a fulcrum with friction, which makes it convenient for workers to hold the hand-held ring to install the proximity switch.
[0022] Optionally, a clearance notch is provided at a corner of the bottom end of the mounting head, the angle formed by the clearance notch is an obtuse angle, the oil pipe of the gun cleaning mechanism is connected to the side wall of the mounting head and is located at the clearance notch, and the compressed air pipe of the gun cleaning mechanism is connected to the bottom surface of the mounting head.
[0023] By adopting the above technical solution, it is easy to install the proximity switch and also easy to connect the oil pipe and the compressed air pipe. At the same time, the material is saved by the clearance notch, and the angle formed by the clearance notch is an obtuse angle, which provides a larger installation space for the connection of the oil pipe.
[0024] In summary, the present application includes at least one of the following beneficial technical effects:
[0025] 1. The setting of the proximity switch helps to reduce the occurrence of nozzle falling or missing installation, realizes automatic judgment, and the equipment automatically alarms and stops when abnormal, thus avoiding the production of large quantities of defective parts due to personnel inspection errors and improving welding quality; in addition, regular inspection during the robot's working process will not increase the robot's workload, thus avoiding the waste of equipment CT;
[0026] 2. The mounting bracket is bent to form a first vertical section, a horizontal section and a second vertical section which are connected in sequence, so that the mounting bracket can be easily connected to the mounting head and the proximity switch, and the structure is simple and beautiful;
[0027] 3. Through the setting of the installation notch, when installing the proximity switch, first insert the first vertical section from top to bottom into the installation notch and clamp it on the bolt, and tighten the bolt, and then pass the head of the proximity switch through the installation hole and fix it with a nut, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a structural schematic diagram of a gooseneck welding gun in the background technology.
[0029] Figure 2 It is a schematic diagram of the overall structure of a nozzle leak detection mechanism of a robot automatic welding system according to an embodiment of the present application.
[0030] Figure 3It is a structural schematic diagram used to illustrate the connection relationship between the proximity switch and the installation component in the embodiment of the present application.
[0031] Figure 4 It is a structural schematic diagram used to display the installation bracket in the embodiment of the present application.
[0032] Explanation of the reference numerals: 1. proximity switch; 11. hand-held ring; 2. gun cleaning mechanism; 21. oil pipe; 22. compressed air pipe; 23. first vertical section; 231. mounting notch; 24. horizontal section; 25. second vertical section; 3. nozzle; 4. mounting head; 41. clearance notch; 5. mounting bracket; 51. mounting hole; 6. bolt; 7. gooseneck welding gun; 71. conductive nozzle; 72. conductive nozzle seat; 73. gooseneck elbow. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-4 This application is described in further detail.
[0034] The present application embodiment discloses a nozzle leak detection mechanism for a robot automatic welding system. Figure 2-3 The nozzle leak detection mechanism of the robot automatic welding system includes a proximity switch 1 and a mounting assembly. The proximity switch 1 is arranged on the gun cleaning mechanism 2 through the mounting assembly. The gun cleaning mechanism 2 is a prior art, and its specific structure is not described in detail in the embodiment of this application. The proximity switch 1 is arranged toward the nozzle 3, and the proximity switch 1 is electrically connected to the alarm and the automatic control system; the mounting assembly includes a mounting head 4 and a mounting bracket 5. The mounting head 4 is fixedly connected to the gun cleaning mechanism 2, and the mounting bracket 5 is bent. One end of the mounting bracket 5 is connected to the side wall of the mounting head 4, and the other end of the mounting bracket 5 is provided with a mounting hole 51. The head of the proximity switch 1 passes through the mounting hole 51 and is locked on the mounting bracket 5 by a nut.
[0035] In the robot automatic welding system, the conductive nozzle 71 will be replaced and the nozzle 3 will be cleaned regularly. A proximity switch 1 is set on the gun cleaning mechanism 2. Every time the robot cleans the nozzle 3 or replaces the conductive nozzle 71, a signal is input to the PLC through the proximity switch 1 to determine whether the nozzle 3 exists. If the nozzle 3 exists, the robot automatically returns to the origin and waits for the task after the cleaning work is completed. If the nozzle 3 does not exist, the robot will immediately alarm and stop, waiting for relevant personnel to confirm the problem and deal with it, which helps to reduce the occurrence of nozzle 3 falling or missing, realizes automatic judgment, and the equipment automatically alarms and stops when abnormal, thereby avoiding the production of large quantities of defective parts due to errors in personnel inspection and improving welding quality.
[0036] In addition, by performing inspections during the robot's regular working process, the robot's workload will not be increased, thus avoiding the waste of equipment CT.
[0037] Reference Figure 2-3 A clearance notch 41 is provided at a corner of the bottom end of the mounting head 4, and the angle formed by the clearance notch 41 is an obtuse angle. The oil pipe 21 of the gun cleaning mechanism 2 is connected to the side wall of the mounting head 4 and is located at the clearance notch 41. The compressed air pipe 22 of the gun cleaning mechanism 2 is connected to the bottom surface of the mounting head 4, which is convenient for installing the proximity switch 1 and also convenient for connecting the oil pipe 21 and the compressed air pipe 22. At the same time, the clearance notch 41 saves materials, and the angle formed by the clearance notch 41 is an obtuse angle, which provides a larger installation space for the connection of the oil pipe 21.
[0038] Reference Figure 3-4 The mounting bracket 5 is bent to form a first vertical section 23, a horizontal section 24 and a second vertical section 25 which are connected in sequence. The first vertical section 23 is located below the second vertical section 25 and is shorter than the second vertical section 25. The first vertical section 23 is fixed to the mounting head 4 by bolts 6. The mounting hole 51 is provided on the side wall at the top end of the second vertical section 25, so that the mounting bracket 5 can be easily connected to the mounting head 4 and the proximity switch 1. The structure is simple and beautiful.
[0039] Reference Figure 3-4 The bottom end of the first vertical section 23 is provided with a plurality of mounting notches 231, which are arranged in an arc shape, and the first vertical section 23 can be inserted from top to bottom into the mounting notches 231 and clamped on the bolt 6, and the bolt 6 passes through the mounting notches 231 and fixes the first vertical section 23 on the mounting head 4. When installing the proximity switch 1, the first vertical section 23 is first inserted from top to bottom into the mounting notches 231 and clamped on the bolt 6, and the bolt 6 is tightened, and then the head of the proximity switch 1 is passed through the mounting hole 51 and fixed by a nut, which is simple and convenient to operate.
[0040] Reference Figure 3-4 The top of the second vertical section 25 is arranged in an arc shape. When the staff holds the mounting bracket 5 for operation, it is not easy to scratch the hands, which helps to improve safety. The tail of the proximity switch 1 is coaxially arranged and fixedly connected with a hand-held ring 11, and a fishing net groove is provided on the peripheral side wall of the hand-held ring 11. The hand-held ring 11 provides a friction point, which is convenient for the staff to hold the hand-held ring 11 to install the proximity switch 1.
[0041] The implementation principle of the nozzle leakage prevention detection mechanism of a robot automatic welding system in the embodiment of the present application is as follows: the robot automatic welding system will regularly replace the conductive nozzle 71 and clean the nozzle 3, and a proximity switch 1 is set on the gun cleaning mechanism 2. Each time the robot cleans the nozzle 3 or replaces the conductive nozzle 71, a signal is input to the PLC through the proximity switch 1 to determine whether the nozzle 3 exists. If the nozzle 3 exists, the robot automatically returns to the origin and waits for the task after the cleaning work is completed. If the nozzle 3 does not exist, the robot will immediately alarm and stop, waiting for relevant personnel to confirm the problem and deal with it, which helps to reduce the occurrence of nozzle 3 falling or missing, realizes automatic judgment, and the equipment automatically alarms and stops when abnormal, thereby avoiding the production of large quantities of defective parts due to errors in personnel inspection, and improving welding quality.
[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A nozzle leak detection mechanism for a robot automatic welding system, characterized in that: It comprises a proximity switch (1) and a mounting assembly, wherein the proximity switch (1) is arranged on a gun cleaning mechanism (2) via the mounting assembly; The proximity switch (1) is arranged toward the nozzle (3), and the proximity switch (1) is electrically connected to an alarm and an automatic control system; the mounting assembly comprises a mounting head (4) and a mounting bracket (5), the mounting head (4) is fixedly connected to the gun cleaning mechanism (2), the mounting bracket (5) is bent, one end of the mounting bracket (5) is connected to the side wall of the mounting head (4), and the other end of the mounting bracket (5) is provided with a mounting hole (51), the head of the proximity switch (1) passes through the mounting hole (51) and is locked on the mounting bracket (5) by a nut.
2. The nozzle leak detection mechanism of a robot automatic welding system according to claim 1, characterized in that: The mounting bracket (5) is bent to form a first vertical section (23), a horizontal section (24) and a second vertical section (25) which are connected in sequence; the first vertical section (23) is located below the second vertical section (25) and the first vertical section (23) is shorter than the second vertical section (25); the first vertical section (23) is fixed to the mounting head (4) by means of bolts (6); and the mounting hole (51) is provided on a side wall at the top end of the second vertical section (25).
3. The nozzle leak detection mechanism of a robot automatic welding system according to claim 2, characterized in that: A plurality of mounting notches (231) are provided at the bottom end of the first vertical section (23), the mounting notches (231) being arranged in an arc shape, and the first vertical section (23) can be inserted into the mounting notches (231) from top to bottom and clamped on the bolts (6), and the bolts (6) pass through the mounting notches (231) and fix the first vertical section (23) on the mounting head (4).
4. The nozzle leak detection mechanism of a robot automatic welding system according to claim 2, characterized in that: The top end of the second vertical section (25) is arranged in an arc shape.
5. A nozzle leak detection mechanism for a robot automatic welding system according to any one of claims 1 to 4, characterized in that: A hand-held ring (11) is coaxially arranged and fixedly connected to the tail of the proximity switch (1), and a fishing net groove is provided on the peripheral side wall of the hand-held ring (11).
6. A nozzle leak detection mechanism for a robot automatic welding system according to any one of claims 1 to 4, characterized in that: A clearance notch (41) is provided at a corner of the bottom end of the mounting head (4), and the angle formed by the clearance notch (41) is an obtuse angle. The oil pipe (21) of the gun cleaning mechanism (2) is connected to the side wall of the mounting head (4) and is located at the clearance notch (41). The compressed air pipe (22) of the gun cleaning mechanism (2) is connected to the bottom surface of the mounting head (4).