Mechanical arm ultrasonic welding device

Abstract

The utility model relates to the technical field of automobile part machining, in particular to a mechanical arm ultrasonic welding device which comprises a welding mechanical arm. The first protective sleeve shell is fixedly arranged on the welding mechanical arm; the second protective sleeve shell is slidably arranged on the first protective sleeve shell and covers an ultrasonic welding head of the welding mechanical arm, and the second protective sleeve shell has a first action for preventing the ultrasonic welding head of the welding mechanical arm from being exposed and a second action for exposing the ultrasonic welding head of the welding mechanical arm; the limiting assembly is arranged on the first protective sleeve shell and used for controlling the second protective sleeve shell to be switched between the first action and the second action. When the welding mechanical arm is in a shutdown state, the second protective sleeve shell is in a first action, and when the welding mechanical arm is in an operation state, the second protective sleeve shell is in a second action. The ultrasonic welding head protection device has the effect of protecting the ultrasonic welding head.

Description

Technical Field

[0001] This application relates to the technical field of automotive part processing, and more particularly to a robotic arm ultrasonic welding device. Background Art

[0002] In today's automotive manufacturing industry, in order to improve the performance of automotive door panels, such as sound insulation and heat insulation, it is often necessary to fix new cotton on the automotive door panels. With the continuous progress of technology, more and more enterprises have begun to use robotic arms combined with ultrasonic welding technology to achieve this process.

[0003] In actual production, in order to prevent workers from colliding with the ultrasonic welding head when transferring automotive door panels and causing damage to the ultrasonic welding head, a protective fence is set around the robotic arm for protection. However, the protective fence can only prevent collisions in a large range to a certain extent, but it is difficult to effectively prevent some subtle and accidental bumps. At the same time, the protective fence will affect the flexibility of the robotic arm and the operating space of workers, reducing production efficiency. Utility Model Content

[0004] In order to protect the ultrasonic welding head, this application provides a robotic arm ultrasonic welding device.

[0005] The robotic arm ultrasonic welding device provided by this application adopts the following technical solutions:

[0006] A robotic arm ultrasonic welding device, comprising:

[0007] A welding robotic arm;

[0008] A first protective housing, fixedly arranged on the welding robotic arm;

[0009] A second protective housing, slidably arranged on the first protective housing and covering the ultrasonic welding head of the welding robotic arm. The second protective housing has a first action of preventing the ultrasonic welding head of the welding robotic arm from being exposed and a second action of exposing the ultrasonic welding head of the welding robotic arm; and

[0010] A limiting component, arranged on the first protective housing for controlling the switching of the second protective housing between the first action and the second action;

[0011] Wherein, when the welding robotic arm is in a stopped state, the second protective housing is in the first action, and when the welding robotic arm is in an operating state, the second protective housing is in the second action.

[0012] In a possible implementation manner, the limiting component includes:

[0013] A limiting member, slidably arranged on the first protective housing;

[0014] An elastic member is disposed between the limiting member and the second protective housing and is used to push the second protective housing to extend from the first protective housing.

[0015] A lifting driving member is disposed on the first protective housing and is used to control the lifting movement of the limiting member.

[0016] Wherein, when the limiting member rises, the second protective housing is in a first action, and when the limiting member descends, the second protective housing is in a second action.

[0017] In a possible implementation manner, the elastic member is a spring, and two ends of the spring are respectively fixedly connected to the limiting member and the second protective housing.

[0018] When the spring is in its original length state, the second protective housing covers the ultrasonic welding head of the welding robotic arm, so that the ultrasonic welding head of the welding robotic arm is completely covered.

[0019] In a possible implementation manner, the lifting driving member is an electric cylinder, a fixed end of the electric cylinder is fixed to the first protective housing, and a telescopic end of the electric cylinder is fixed to the limiting member.

[0020] In a possible implementation manner, a chute is formed on the first protective housing, a slider is fixedly disposed on the second protective housing, and the slider is slidably disposed on the chute.

[0021] In a possible implementation manner, a flanging is fixedly disposed on the second protective housing.

[0022] In a possible implementation manner, a cover is snap-fitted on the second protective housing.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] When the welding robotic arm is in a stopped state, the second protective housing is in a first action and completely covers the ultrasonic welding head. When the welding robotic arm is in an operating state, the second protective housing is in a second action, so that the ultrasonic welding head can be exposed for welding operations. This not only ensures that the ultrasonic welding head can function properly during work, but also provides effective protection when stopped, without affecting the flexibility of the robotic arm and the operating space of the staff. The limiting component can automatically control the action switching of the second protective housing according to the working state of the welding robotic arm, improving the safety and reliability of the equipment and reducing the errors and risks of manual operation.

[0025] The setting of the flanging increases the strength and stability of the second protective housing. During operation, the flanging can act as a reinforcing rib to prevent the second protective housing from deforming or being damaged when subjected to external forces. Description of the Drawings

[0026] Figure 1 is a schematic diagram of the overall structure of the robotic arm ultrasonic welding device provided by an embodiment of the present application;

[0027] Figure 2 is a cross-sectional view of the robotic arm ultrasonic welding device provided by an embodiment of the present application;

[0028] Figure 3 is Figure 1 an enlarged schematic diagram of part A in

[0029] Figure 4 is Figure 2 an enlarged schematic diagram of part B in

[0030] Reference Numerals: 1, welding robotic arm; 21, first protective housing; 211, sliding groove; 22, second protective housing; 221, slider; 222, flanging; 223, cover; 31, limiting member; 32, elastic member; 33, lifting driving member. Detailed Embodiments

[0031] The technical solutions in the present application will be further described in detail below with reference to the drawings.

[0032] An embodiment of the present application discloses a robotic arm ultrasonic welding device. Please refer to Figures 1-4 , a robotic arm ultrasonic welding device includes a welding robotic arm 1, a first protective housing 21, a second protective housing 22, and a limiting assembly.

[0033] Among them, please refer to Figure 3 and Figure 4 , the first protective housing 21 is fixedly arranged on the welding robotic arm 1 and covers the ultrasonic welding head of the welding robotic arm 1. At the same time, the first protective housing 21 completely exposes the head of the ultrasonic welding head. The second protective housing 22 is slidably arranged on the first protective housing 21 and covers the ultrasonic welding head of the welding robotic arm 1. The second protective housing 22 has a first action of preventing the ultrasonic welding head of the welding robotic arm 1 from being exposed, and a second action of exposing the ultrasonic welding head of the welding robotic arm 1.

[0034] The first protective housing 21 provides a stable foundation for the installation of subsequent components. At the same time, the first protective housing 21 can protect part of the structure of the ultrasonic welding head from the external environment, playing a certain protective role to prevent part of the structure of the ultrasonic welding head from being damaged by collision. Through the conversion of the second protective housing 22 between the first action and the second action, the ultrasonic welding head can be protected according to different application scenarios.

[0035] The limiting component is arranged on the first protective housing 21 and is used to control the switching of the second protective housing 22 between the first action and the second action. When the welding robot arm 1 is in the stopped state, the second protective housing 22 is in the first action, and when the welding robot arm 1 is in the working state, the second protective housing 22 is in the second action.

[0036] In practical applications, the limiting component can automatically control the action switching of the second protective housing 22 according to the working state of the welding robot arm 1. When the welding robot arm 1 receives a welding instruction and starts working, the limiting component will automatically switch the second protective housing 22 to the second action, so that the ultrasonic welding head can be exposed for welding. When the welding task is completed and the welding robot arm 1 stops working, the limiting component will switch the second protective housing 22 back to the first action to protect the ultrasonic welding head. This automatic control method improves the safety and reliability of the equipment and reduces the errors and risks of manual operation.

[0037] In some embodiments, please refer to Figure 3 and Figure 4 , the limiting component includes a limiting member 31, an elastic member 32 and a lifting driving member 33. Among them, the limiting member 31 is slidably arranged on the first protective housing 21. The elastic member 32 is arranged between the limiting member 31 and the second protective housing 22 and is used to push the second protective housing 22 to extend from the first protective housing 21. The lifting driving member 33 is arranged on the first protective housing 21 and is used to control the lifting movement of the limiting member 31. When the limiting member 31 rises, the second protective housing 22 is in the first action, and when the limiting member 31 descends, the second protective housing 22 is in the second action.

[0038] The movement stroke of the second protective housing 22 can be restricted by the limiting member 31, thereby realizing the control of the movement of the second protective housing 22. When the limiting member 31 rises, the movement stroke of the second protective housing 22 increases, enabling the second protective housing 22 to move to expose the ultrasonic welding head by squeezing the elastic member 32, so that the ultrasonic welding head can contact the new cotton on the car door panel and fix the new cotton on the car door panel. When the limiting member 31 descends, the movement stroke of the second protective housing 22 is shortened, so that the second protective housing 22 cannot expose the ultrasonic welding head even if it squeezes the elastic member 32. This prevents damage to the ultrasonic welding head in the event of an accidental collision and plays a protective role.

[0039] In some embodiments, please refer to Figure 3 and Figure 4 , the elastic member 32 is a spring. The spring is sleeved on the first protective housing 21, and both ends of the spring are fixedly connected to the limiting member 31 and the second protective housing 22 respectively. When the spring is in its original length state, the second protective housing 22 covers the ultrasonic welding head of the welding robotic arm 1, so that the ultrasonic welding head of the welding robotic arm 1 is completely covered.

[0040] When the welding robotic arm 1 is in the stopped state, the limiting member 31 is in the lowered state and the spring is in its original length state. At this time, the second protective housing 22 completely covers the ultrasonic welding head, which can prevent external objects from accidentally colliding with the ultrasonic welding head.

[0041] When the welding robotic arm 1 is in the working state, the limiting member 31 is in the raised state. At this time, the welding robotic arm 1 controls the ultrasonic welding head to move towards the new cotton on the car door panel, so that the second protective housing 22 first contacts the new cotton. As the operation of the welding robotic arm 1 continues, the second protective housing 22 is pushed upward and the spring is compressed, so that the ultrasonic welding head gradually extends out of the second protective housing 22 and contacts the new cotton, thereby welding the new cotton to the car door panel.

[0042] In some embodiments, please refer to Figure 3 and Figure 4 , the lifting drive member 33 is an electric cylinder. The fixed end of the electric cylinder is fixedly connected to the first protective housing 21, and the telescopic end of the electric cylinder is fixedly connected to the limiting member 31. The electric cylinder is connected to the control system of the welding robotic arm 1, thereby realizing the synchronous control of the electric cylinder.

[0043] The electric cylinder can adjust the length of its telescopic end by receiving an electrical signal from the control system, thereby achieving the lifting control of the limiting member 31. When it is necessary to switch the second protective housing 22 to the second action, the control system will send an instruction to the electric cylinder, causing the telescopic end of the electric cylinder to shorten and raising the limiting member 31. When it is necessary to switch the second protective housing 22 to the first action, the control system will send an instruction to the electric cylinder again, causing the telescopic end of the electric cylinder to extend and lowering the limiting member 31.

[0044] In some embodiments, please refer to Figure 3 and Figure 4 Figure, a chute 211 is formed on the first protective housing 21, and a slider 221 is fixedly arranged on the second protective housing 22. The slider 221 is slidably arranged on the chute 211. During the working process, the sliding of the slider 221 in the chute 211 can limit the movement direction of the second protective housing 22, preventing it from deviating or shaking during the movement.

[0045] In some embodiments, please refer to Figure 3 and Figure 4 Figure, a flanging 222 is fixedly arranged on the second protective housing 22. The setting of the flanging 222 increases the strength and stability of the second protective housing 22. During the working process, the flanging 222 can act as a reinforcing rib to prevent the second protective housing 22 from deforming or being damaged when subjected to external forces.

[0046] In some embodiments, please refer to Figure 3 and Figure 4 Figure, a cover 223 is buckled on the second protective housing 22. When the welding robot arm 1 needs to stop working for a long time, the cover 223 is buckled on the second protective housing 22, thereby completely enclosing the ultrasonic welding head inside the first protective housing 21 and the second protective housing 22, which can effectively prevent foreign matters such as dust and small particles from entering the inside of the first protective housing 21 and the second protective housing 22, so as to better protect the ultrasonic welding head from being damaged.

[0047] All in all, compared with the prior art, in the robotic arm ultrasonic welding device provided by the present application, when the welding robot arm 1 is in the stopped state, the second protective housing 22 is in the first action and completely covers the ultrasonic welding head. When the welding robot arm 1 is in the working state, the second protective housing 22 is in the second action, so that the ultrasonic welding head can be exposed for welding operations. It not only ensures that the ultrasonic welding head can function properly during work, but also provides effective protection when stopped, without affecting the flexibility of the robot arm and the operating space of the operator. The limiting component can automatically control the action switching of the second protective housing 22 according to the working state of the welding robot arm 1, improving the safety and reliability of the equipment and reducing the errors and risks of manual operation.

[0048] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application. Therefore, all equivalent changes made according to the structure, shape, and principle of this application shall be covered within the protection scope of this application.

Claims

1. An ultrasonic welding device for a robotic arm, characterized in that, Comprising: A welding robot arm (1); A first protective housing (21), fixedly arranged on the welding robot arm (1); A second protective housing (22), slidably arranged on the first protective housing (21) and covering the ultrasonic welding head of the welding robot arm (1), the second protective housing (22) having a first action of preventing the exposure of the ultrasonic welding head of the welding robot arm (1) and a second action of exposing the ultrasonic welding head of the welding robot arm (1); and A limit component, arranged on the first protective housing (21) for controlling the switching of the second protective housing (22) between the first action and the second action; Wherein, when the welding robot arm (1) is in a stopped state, the second protective housing (22) is in the first action, and when the welding robot arm (1) is in an operating state, the second protective housing (22) is in the second action.

2. The ultrasonic welding device for a robotic arm according to claim 1, characterized in that: The limit component includes: A limiting member (31), slidably arranged on the first protective housing (21); An elastic member (32), arranged between the limiting member (31) and the second protective housing (22) for pushing the second protective housing (22) to extend from the first protective housing (21); A lifting driving member (33), arranged on the first protective housing (21) for controlling the lifting movement of the limiting member (31); Wherein, when the limiting member (31) rises, the second protective housing (22) is in the first action, and when the limiting member (31) descends, the second protective housing (22) is in the second action.

3. The ultrasonic welding device for a robotic arm according to claim 2, characterized in that: The elastic member (32) is a spring, and both ends of the spring are fixedly connected to the limiting member (31) and the second protective housing (22) respectively; When the spring is in its original length state, the second protective housing (22) covers the ultrasonic welding head of the welding robot arm (1) so that the ultrasonic welding head of the welding robot arm (1) is completely covered.

4. The ultrasonic welding device for a robotic arm according to claim 2, characterized in that: The lifting driving member (33) is an electric cylinder, the fixed end of the electric cylinder is fixed to the first protective housing (21), and the telescopic end of the electric cylinder is fixed to the limiting member (31).

5. The ultrasonic welding device for a robotic arm according to claim 1, characterized in that: A chute (211) is formed on the first protective housing (21), a slider (221) is fixedly arranged on the second protective housing (22), and the slider (221) is slidably arranged on the chute (211).

6. The ultrasonic welding device for a robotic arm according to claim 1, wherein: A flange (222) is fixedly arranged on the second protective housing (22).

7. The ultrasonic welding device for a robotic arm according to claim 1, characterized in that: A cover (223) is buckled on the second protective housing (22).

Images