A nozzle changing device for a robot welding gun

Abstract

This utility model discloses a nozzle replacement device for a robotic welding torch, comprising an installation chamber on a workbench, a first stand, a second stand, a placement slot for accommodating a new nozzle, a pusher assembly for adjusting the position of the new nozzle, a detection assembly, a clamping cylinder, and a storage box for storing the old nozzle. The placement slot is fixedly installed between the first and second stands. By coordinating the rotation of the robot with the clamping cylinder, the old nozzle is removed and collected in the storage box. Then, through the cooperation of the detection assembly and the pusher assembly, the new nozzle is pushed in the placement slot toward the detection assembly, thereby facilitating the robot to position the new nozzle and insert its end into the new nozzle. Subsequently, the new nozzle is clamped and fixed by the clamping cylinder, and a threaded connection is made in conjunction with the axial rotation of the robot, thereby achieving efficient and simple nozzle disassembly and replacement, and improving the welding efficiency of the robot.

Description

Technical Field

[0001] This utility model relates to the field of welding robot equipment, specifically to a nozzle replacement device for a robot welding torch. Background Technology

[0002] During product manufacturing, welding operations are required for certain parts and components. A common method is gas shielded welding (such as carbon dioxide shielded welding), which necessitates the use of a welding torch. A typical welding torch consists of a contact tip and a nozzle, which are threaded together at the end of the torch. After a period of operation, both the contact tip and nozzle will wear down, especially the nozzle, which experiences greater wear. A worn nozzle affects welding quality, and severely poor welding quality can lead to market / customer complaints, product recalls, hefty compensation costs, and even company bankruptcy. Therefore, the nozzle needs to be replaced after a certain period of use. Currently, most welding torch maintenance, including nozzle replacement, is done manually. However, because the nozzle reaches high temperatures after welding, manual nozzle replacement is time-consuming, labor-intensive, and prone to causing burns, hindering welding efficiency. Utility Model Content

[0003] In view of this, the purpose of this utility model is to provide a nozzle replacement device for a robotic welding torch to solve the above-mentioned problems.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is: a nozzle replacement device for a robotic welding torch, comprising an installation chamber on a workbench, a first upright, a second upright, a placement slot for accommodating a new nozzle, a pusher assembly for adjusting the position of the new nozzle, a detection assembly, a clamping cylinder, and a storage box for storing old nozzles; the placement slot is fixedly installed between the first and second uprights, the detection assembly is disposed beside the first upright with its detection end facing the placement slot, the pusher assembly is fixedly installed below the placement slot and pushes the new nozzle in the placement slot toward the detection end of the detection assembly; the clamping cylinder is fixedly installed on the top of the second upright and the placement slot; a clamp is fixedly installed on the movable end of the clamping cylinder, and the storage box is fixedly installed below the second upright.

[0005] Preferably, the placement groove includes a first upright plate, a second upright plate, and a side plate; the top ends of the first and second upright plates extend to the sides to form convex edges; the side plates are symmetrically arranged on both sides of the convex edges, and the new nozzle is placed in the groove formed by the first upright plate, the second upright plate, and the side plate; the bottom of the side plate is provided with through slots at intervals for the pusher assembly to enter and push the new nozzle.

[0006] Preferably, the bottom of the first and second upright plates are provided with mounting grooves for mounting the pusher assembly.

[0007] Preferably, the pusher assembly includes a linear cylinder, a cylinder slider, and a movable push plate; the movable push plate enters the placement groove through the through groove; both ends of the linear cylinder are fixedly installed in the mounting groove; the cylinder slider is correspondingly sleeved on the linear cylinder and cooperates with the linear cylinder.

[0008] Preferably, the first upright plate has a through hole, the detection component is fixedly installed in the through hole, and the detection end of the detection component faces the new nozzle.

[0009] Preferably, a first solenoid valve and a second solenoid valve for driving the linear cylinder and the clamping cylinder are fixedly installed on the side of the side plate.

[0010] Preferably, the detection component is one of a photoelectric sensor, a capacitive sensor, and an ultrasonic sensor.

[0011] The main advantages of this invention are as follows: The old nozzle on the welding torch nozzle is held in place by a clamping cylinder. Combined with the robot's axial rotation, the old nozzle is easily removed and collected in the lower storage box. Then, through the cooperation of the detection component and the pusher component, the new nozzle is pushed towards the detection component in the placement slot. This facilitates the robot's positioning of the new nozzle and insertion of its end onto it. The elastic deformation of the new nozzle temporarily clamps and fixes it to the robot's end. Subsequently, the clamping cylinder holds and fixes the new nozzle, and the axial rotation of the robot completes the threaded connection. This achieves efficient and simple nozzle disassembly and replacement, improving the robot's welding efficiency. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the present invention installed on a workbench;

[0013] Figure 2 This is a perspective view of the present utility model;

[0014] Figure 3 This is a structural diagram of the placement slot and pusher assembly.

[0015] The attached figures are labeled as follows: 1-Installation chamber, 2-First upright, 3-Second upright, 4-Placement slot, 41-First upright plate, 411-Protruding edge, 412-Through slot, 413-Installation slot, 414-Through hole, 42-Second upright plate, 43-Side plate, 431-First solenoid valve, 432-Second solenoid valve, 5-Push component assembly, 51-Linear cylinder, 52-Cylinder slider, 53-Modible push plate, 6-Detection component, 7-Clamping cylinder, 8-Storage box, 9-Clamping fixture. Detailed Implementation

[0016] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, so that the technical solution of this utility model can be more easily understood and mastered.

[0017] In this embodiment, it should be understood that the terms "middle," "upper," "lower," "top," "right side," "left end," "above," "back," "center," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0018] Furthermore, unless otherwise specified in this specific embodiment, the connection or fixing method between components can be achieved by bolt fixing, pin fixing, or pin connection commonly used in the prior art. Therefore, it will not be described in detail in this embodiment.

[0019] This utility model provides a nozzle replacement device for a robotic welding torch, such as... Figure 1-3 As shown, the system includes an installation compartment 1 on a workbench, a first stand 2, a second stand 3, a placement slot 4 for accommodating new nozzles, a pusher assembly 5 for adjusting the position of new nozzles, a detection assembly 6, a clamping cylinder 7, and a storage box 8 for storing old nozzles. The placement slot 4 is fixedly installed between the first stand 2 and the second stand 3. The detection assembly 6 is located beside the first stand 2 with its detection end facing the placement slot 4. The pusher assembly 5 is fixedly installed below the placement slot 4 and pushes the new nozzle in the placement slot 4 toward the detection end of the detection assembly 6. The clamping cylinder 7 is fixedly installed on the top of the second stand 3 and the placement slot 4. A fixed mounting plate is installed on the movable end of the clamping cylinder 7. Equipped with a clamp 9, the storage box 8 is fixedly installed below the second upright 3. The old nozzle on the welding torch nozzle is clamped by a clamping cylinder 7. With the robot's axial rotation, the old nozzle is easily removed and collected in the storage box 8. Then, through the cooperation of the detection component 6 and the pusher component 5, a new nozzle is pushed from the placement slot 4 toward the detection component 6. This facilitates the robot's positioning of the new nozzle and insertion of its end onto it. The elastic deformation of the new nozzle temporarily clamps and fixes it to the robot's end. Subsequently, the clamping cylinder 7 clamps and fixes the new nozzle, and with the robot's axial rotation, a threaded connection is established. This achieves efficient and simple nozzle disassembly and replacement, improving the robot's welding efficiency. In this embodiment, the position in the placement slot 4 near the detection component 6 is the pre-installation position. When the detection component 6 detects that there is no new nozzle in the pre-installation position, it drives the pusher component 5 to push the new nozzle in the placement slot 4 toward the pre-installation position, ensuring that there is always a new nozzle in the pre-installation position.

[0020] Preferably, the placement groove 4 includes a first upright plate 41, a second upright plate 42, and a side plate 43; the top ends of the first upright plate 41 and the second upright plate 42 extend to the side to form a protruding edge 411; the side plate 43 is symmetrically arranged on both sides of the protruding edge 411, thereby positioning the side plate 43 using the two sides of the protruding edge 411. In this embodiment, the width of the protruding edge 411 is greater than the diameter of the new nozzle, and the new nozzle is placed in the groove formed by the first upright plate 41, the second upright plate 42, and the side plate 43; the bottom of the side plate 43 is provided with through grooves 412 at intervals for the pusher assembly 5 to enter and push the new nozzle. The width of the through grooves 412 is less than the diameter of the new nozzle, thereby enabling the pusher assembly 5 to enter and preventing the new nozzle from falling out of the mounting groove 413.

[0021] Preferably, the bottom of the first upright plate 41 and the second upright plate 42 are provided with mounting grooves 413 for mounting the pusher assembly 5.

[0022] Preferably, the pusher assembly 5 includes a linear cylinder 51, a cylinder slider 52, and a movable push plate 53; the movable push plate 53 enters the placement groove 4 through the through groove 412; both ends of the linear cylinder 51 are fixedly installed in the mounting groove 413; the cylinder slider 52 is correspondingly sleeved on the linear cylinder 51 and cooperates with the linear cylinder 51. By controlling the air pressure of the linear cylinder 51, the cylinder slider 52 on the linear cylinder 51 moves linearly under air pressure, thereby driving the movable push plate 53 to push the new nozzle.

[0023] Preferably, the first upright plate 41 has a through hole 414, the detection component 6 is fixedly installed in the through hole 414, and the detection end of the detection component 6 faces the new nozzle for detecting the new nozzle in the pre-installed position.

[0024] Preferably, a first solenoid valve 431 and a second solenoid valve 432 for driving the linear cylinder 51 and the clamping cylinder 7 are fixedly installed on the side of the side plate 43, so that the first solenoid valve 431 drives the linear cylinder 51 to continuously push the new nozzle, and the second solenoid valve 432 controls the clamping and opening actions of the clamping cylinder 7.

[0025] Preferably, the detection component 6 is one of a photoelectric sensor, a capacitive sensor, and an ultrasonic sensor. All of the above sensors can effectively monitor whether there is a new nozzle in the pre-installed position, while the photoelectric sensor and the ultrasonic sensor can also detect whether there is a new nozzle in the placement slot 4.

[0026] The main advantages of this invention are as follows: The old nozzle on the welding torch nozzle is held in place by a clamping cylinder. Combined with the robot's axial rotation, the old nozzle is easily removed and collected in the lower storage box. Then, through the cooperation of the detection component and the pusher component, the new nozzle is pushed towards the detection component in the placement slot. This facilitates the robot's positioning of the new nozzle and insertion of its end onto it. The elastic deformation of the new nozzle temporarily clamps and fixes it to the robot's end. Subsequently, the clamping cylinder holds and fixes the new nozzle, and the axial rotation of the robot completes the threaded connection. This achieves efficient and simple nozzle disassembly and replacement, improving the robot's welding efficiency.

[0027] Of course, the above are just typical examples of this utility model. In addition, this utility model may have many other specific implementation methods. All technical solutions formed by equivalent substitution or equivalent transformation fall within the scope of protection claimed by this utility model.

Claims

1. A nozzle changing device for a robotic welding torch, characterized in that, The device includes an installation compartment on a workbench, a first stand, a second stand, a placement slot for accommodating new nozzles, a pusher assembly for adjusting the position of new nozzles, a detection assembly, a clamping cylinder, and a storage box for storing old nozzles. The placement slot is fixedly installed between the first and second stands. The detection assembly is located beside the first stand with its detection end facing the placement slot. The pusher assembly is fixedly installed below the placement slot and pushes the new nozzle in the placement slot toward the detection end of the detection assembly. The clamping cylinder is fixedly installed on the top of the second stand and the placement slot. A clamp is fixedly installed on the movable end of the clamping cylinder. The storage box is fixedly installed below the second stand.

2. The nozzle changing device for a robotic welding torch as described in claim 1, characterized in that, The placement groove includes a first upright plate, a second upright plate, and a side plate; the top ends of the first and second upright plates extend to the sides to form convex edges; the side plates are symmetrically arranged on both sides of the convex edges, and the new nozzle is placed in the groove formed by the first upright plate, the second upright plate, and the side plate; the bottom of the side plate is provided with through slots at intervals for the pusher assembly to enter and push the new nozzle.

3. The nozzle changing device for a robotic welding torch as described in claim 2, characterized in that, The bottom of the first and second upright plates are provided with mounting grooves for mounting the pusher assembly.

4. The nozzle changing device for a robotic welding torch as described in claim 3, characterized in that, The pusher assembly includes a linear cylinder, a cylinder slider, and a movable push plate; the movable push plate enters the placement groove through the through groove; both ends of the linear cylinder are fixedly installed in the mounting groove; the cylinder slider is correspondingly sleeved on the linear cylinder and cooperates with the linear cylinder.

5. The nozzle changing device for a robotic welding torch as described in claim 1, characterized in that, A through hole is provided on the first upright plate, and the detection component is fixedly installed in the through hole, with the detection end of the detection component facing the new nozzle.

6. The nozzle changing device for a robotic welding torch as described in claim 4, characterized in that, A first solenoid valve and a second solenoid valve for driving the linear cylinder and the clamping cylinder are fixedly installed on the side of the side plate.

7. The nozzle changing device for a robotic welding torch as described in claim 1, characterized in that, The detection component is one of a photoelectric sensor, a capacitive sensor, and an ultrasonic sensor.

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