Friction welding machine and welding method

Abstract

The application relates to a welding method of a friction welding machine, and relates to the technical field of friction welding. The friction welding machine comprises an upper clamp and a lifting platform with a lower clamp, and a welding head is arranged in the upper clamp. The method comprises the following steps: installing an instrument panel on the lower clamp, and installing an air duct and sound insulation cotton at a target area of the instrument panel; controlling the lower clamp of the lifting platform to move towards the upper clamp until the welding head is in contact with the air duct and the sound insulation cotton, under the condition that the welding head in the upper clamp corresponds to the air duct and the sound insulation cotton; controlling the welding head to vibrate and rub, so that the air duct and the sound insulation cotton are welded at the target area; and controlling the lower clamp of the lifting platform to continue moving towards the upper clamp until stopping at a first target position. The application not only simultaneously welds the air duct and the sound insulation cotton on the instrument panel, but also enhances the connecting strength between the air duct, the sound insulation cotton and the instrument panel.

Description

Technical Field

[0001] This application relates to the field of friction welding technology, and in particular to a welding method using a friction welding machine. Background Technology

[0002] Currently, in the welding process of automotive dashboards, the air duct is first friction-welded onto the dashboard, and then the sound insulation cotton is ultrasonically welded onto the dashboard. These two steps are carried out separately, which is quite complicated. Summary of the Invention

[0003] This application aims to at least solve the technical problem in the prior art where the air duct and sound insulation cotton are welded to the dashboard in two separate steps, resulting in a relatively cumbersome process. To address this, this application proposes a welding method using a friction welding machine.

[0004] This application provides a welding method for a friction welding machine, the friction welding machine comprising: an upper clamp and a lifting platform having a lower clamp, wherein a welding head is installed inside the upper clamp;

[0005] The method includes:

[0006] The instrument panel is mounted on the lower clamp, and air ducts and sound insulation cotton are installed in the target area of ​​the instrument panel;

[0007] When the welding head in the upper clamp corresponds to the air duct and the sound insulation cotton, the lower clamp of the lifting platform is controlled to move closer to the upper clamp until the welding head contacts the air duct and the sound insulation cotton;

[0008] The vibration and friction of the welding head are controlled to weld the air duct and the sound insulation cotton to the target area, and the lower clamp of the lifting platform is controlled to continue to move closer to the upper clamp until it stops at the first target position.

[0009] By adopting the above technical solution, the lower clamp of the lifting platform is controlled to move closer to the upper clamp. When the welding head contacts the air duct and sound insulation cotton, the vibration and friction of the welding head are controlled, and the lower clamp of the lifting platform is controlled to move closer to the upper clamp until it stops at the first target position. This not only welds the air duct and sound insulation cotton to the instrument panel at the same time, but also enhances the connection strength between the air duct and sound insulation cotton and the instrument panel.

[0010] According to one embodiment of this application, controlling the lower clamp of the lifting platform to move closer to the upper clamp includes:

[0011] The lower clamp of the control platform is moved closer to the upper clamp, and the driving force of the lower clamp moving closer to the upper clamp is reduced at the second target position.

[0012] By adopting the above technical solution, the lower clamp of the lifting platform rapidly approaches the upper clamp, and then decelerates when the lower clamp reaches the second target position, causing the welding head inside the upper clamp to slowly approach the lower clamp.

[0013] This design allows the welding head to quickly approach the air duct and sound insulation cotton, shortening the welding process time and preventing the welding head from colliding with the air duct and sound insulation cotton, thus ensuring smooth welding.

[0014] According to one embodiment of this application, after reducing the driving force of the lower clamp toward the upper clamp at the second target position, the method further includes:

[0015] Reduce the driving force of the lower clamp toward the upper clamp to the first driving force;

[0016] At the moment when the welding head comes into contact with the air duct and the sound insulation cotton, the first driving force is increased to the second driving force;

[0017] At the moment when the welding head moves to the first target position, the second driving force is reduced to zero.

[0018] By adopting the above technical solution, when the welding head contacts the air duct and sound insulation cotton, the first driving force is increased to the second driving force. The second driving force drives the lower clamp to move closer to the upper clamp direction, and the welding head will simultaneously squeeze the air duct and sound insulation cotton to enhance the connection strength between the air duct and sound insulation cotton and the instrument panel.

[0019] According to one embodiment of this application, after reducing the driving force of the lower clamp toward the upper clamp at the second target position, the method further includes:

[0020] Reduce the driving force of the lower clamp toward the upper clamp to the first driving force;

[0021] During the process from the welding head contacting the air duct and the sound insulation cotton to the welding head moving to the first target position, the first driving force is uniformly increased to the second driving force;

[0022] By adopting the above technical solution, it is possible to ensure that the air duct and sound insulation cotton are fully bonded to the instrument panel, thereby further enhancing the connection strength between the air duct and sound insulation cotton and the instrument panel.

[0023] According to one embodiment of this application, the target area is provided with a limiting groove for accommodating the sound insulation cotton. When the lower clamp of the lifting platform moves closer to the upper clamp and stops at the first target position, the sound insulation cotton is interference-fitted with the limiting groove.

[0024] By adopting the above technical solution, the limiting groove is opened at the target area of ​​the instrument panel, and the sound insulation cotton is placed in the limiting groove. When the part of the welding head corresponding to the sound insulation cotton vibrates and rubs between the sound insulation cotton and the instrument panel, the welding head and the instrument panel have a larger contact surface, thereby enhancing the connection strength between the sound insulation cotton and the instrument panel.

[0025] According to one embodiment of this application, controlling the lower clamp of the lifting platform to move closer to the upper clamp until the welding head contacts the air duct and the sound insulation cotton includes:

[0026] When the lower clamp of the lifting platform moves closer to the upper clamp, the welding head comes into contact with the sound insulation cotton.

[0027] The welding head squeezes the sound insulation cotton and comes into contact with the air duct.

[0028] By adopting the above technical solution, the part of the welding head corresponding to the sound insulation cotton first contacts the sound insulation cotton and compresses the sound insulation cotton to make it interference fit with the limiting groove. Then the welding head contacts the air duct. With this design, when the part of the welding head corresponding to the sound insulation cotton vibrates and rubs between the sound insulation cotton and the instrument panel, the connection strength between the sound insulation cotton and the instrument panel is better.

[0029] According to one embodiment of this application, the friction welding machine further includes: a robotic arm;

[0030] The robotic arm is controlled to grip the instrument panel and mount it onto the lower fixture;

[0031] Control the robotic arm to grip the air duct or the sound insulation cotton and install it in the target area of ​​the instrument panel.

[0032] By adopting the above technical solution, inserts are installed on both the part of the welding head corresponding to the sound insulation cotton and the part of the welding head corresponding to the air duct. These inserts are arranged around the edges of the sound insulation cotton and the air duct.

[0033] According to one embodiment of this application, the welding head is equipped with a plurality of inserts, the plurality of inserts being arranged around the edge of the sound insulation cotton and around the edge of the air duct, the welding head pressing the sound insulation cotton and the air duct together through the inserts.

[0034] By adopting the above technical solution, one half of the insert can be pressed onto the sound insulation cotton, and the other half of the insert can be pressed onto the dashboard, or one half of the insert can be pressed onto the air duct, and the other half of the insert can be pressed onto the dashboard. That is, the process of the insert following the vibration and friction of the welding head is used to weld both the sound insulation cotton and the dashboard onto the dashboard.

[0035] According to one embodiment of this application, the insert has a plurality of friction teeth evenly distributed on the end face of the end face used to press the sound insulation cotton and the air duct.

[0036] By adopting the above technical solution, this design is used to improve the friction effect of the insert on the sound insulation cotton and the air duct.

[0037] According to one embodiment of this application, the length of the insert is 20mm and the width of the insert is 20mm.

[0038] In summary, this application includes at least one of the following beneficial technical effects:

[0039] The lower clamp of the control lifting platform moves closer to the upper clamp. When the welding head contacts the air duct and sound insulation cotton, the welding head vibrates and rubs, and the lower clamp of the control lifting platform continues to move closer to the upper clamp until it stops at the first target position. This not only welds the air duct and sound insulation cotton to the instrument panel at the same time, but also enhances the connection strength between the air duct and sound insulation cotton and the instrument panel. Attached Figure Description

[0040] Figure 1 This is a schematic flowchart of the welding method of the friction welding machine provided in the embodiments of this application; Detailed Implementation

[0041] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0042] The following is for reference. Figure 1 This application describes a welding method using a friction welding machine according to an embodiment of the present application.

[0043] The welding method of this friction welding machine can be applied to a terminal, specifically executed by the hardware or software within the terminal.

[0044] The friction welding method of the friction welding machine provided in this application embodiment can be executed by an electronic device or a functional module or functional entity in an electronic device that can realize the friction welding method. The electronic device mentioned in this application embodiment includes, but is not limited to, the host, server, or computer of the friction welding machine welding method. The following describes the friction welding method of the friction welding machine provided in this application embodiment using an electronic device as the execution subject.

[0045] The friction welding machine includes an upper clamp and a lifting platform. The upper clamp contains a welding head, and the lifting platform contains a lower clamp.

[0046] The welding method of the friction welding machine includes steps 100, 200 and 300.

[0047] Step 100: Install the instrument panel on the lower fixture, and install the air duct and sound insulation cotton in the target area of ​​the instrument panel.

[0048] In this step, the lower clamp can be manually installed on the dashboard, and then the air duct and sound insulation cotton can be installed in the target area of ​​the dashboard.

[0049] Alternatively, the instrument panel can be held in place by a robotic arm and installed in the lower clamp, followed by the clamping of the air duct and sound insulation cotton, which are then installed in the target area of ​​the instrument panel.

[0050] It should be noted that the target area is the area where air ducts and sound insulation materials need to be installed on the dashboard.

[0051] Step 200: With the welding head in the upper clamp corresponding to the air duct and sound insulation cotton, control the lower clamp of the lifting platform to move closer to the upper clamp until the welding head contacts the air duct and sound insulation cotton.

[0052] In this step, the welding head is installed in the upper clamp according to the location of the air duct and sound insulation cotton in the target area. When the lower clamp of the lifting platform moves towards the upper clamp, the welding head can be pressed onto the air duct and sound insulation cotton.

[0053] Step 300: Control the vibration and friction of the welding head to weld the air duct and sound insulation cotton to the target area, and continue to control the lower clamp of the lifting platform to move towards the upper clamp until it stops at the first target position.

[0054] In this step, the welding head vibrates and rubs against each other. During this process, the welding head moves closer to the upper clamp along with the lower clamp. That is, the welding head will squeeze the air duct and sound insulation cotton at the same time to enhance the connection strength between the air duct and sound insulation cotton and the dashboard.

[0055] According to the friction welding method of the embodiment of this application, the lower clamp of the lifting platform is controlled to move closer to the upper clamp. When the welding head contacts the air duct and the sound insulation cotton, the welding head is controlled to vibrate and rub, and the lower clamp of the lifting platform is controlled to move closer to the upper clamp until the first target position is reached. This not only welds the air duct and the sound insulation cotton to the instrument panel at the same time, but also enhances the connection strength between the air duct and the sound insulation cotton and the instrument panel.

[0056] In some embodiments, step 200, controlling the lower clamp of the lifting platform to move closer to the upper clamp, includes:

[0057] Step 210: Control the lower clamp of the lifting platform to move closer to the upper clamp, and reduce the driving force of the lower clamp moving closer to the upper clamp at the second target position.

[0058] In this embodiment, the lower clamp of the lifting platform rapidly approaches the upper clamp, and then decelerates when the lower clamp reaches the second target position, causing the welding head inside the upper clamp to slowly approach the lower clamp.

[0059] This design allows the welding head to quickly approach the air duct and sound insulation cotton, shortening the welding process time and preventing the welding head from colliding with the air duct and sound insulation cotton, thus ensuring smooth welding.

[0060] In some embodiments, after step 210, reducing the driving force of the lower clamp moving towards the upper clamp at the second target position, the method further includes:

[0061] Reduce the driving force of the lower clamp towards the upper clamp to the first driving force.

[0062] When the welding head comes into contact with the air duct and sound insulation cotton, the first driving force is increased to the second driving force, and the lower clamp of the lifting platform is controlled to move towards the upper clamp until it stops at the first target position.

[0063] This embodiment includes two possible scenarios:

[0064] Scenario 1: When the welding head comes into contact with the air duct and sound insulation cotton, the first driving force is increased to the second driving force. The second driving force drives the lower clamp to move closer to the upper clamp, and the welding head will simultaneously squeeze the air duct and sound insulation cotton to enhance the connection strength between the air duct and sound insulation cotton and the dashboard.

[0065] Scenario 2: During the process from the welding head contacting the air duct and sound insulation cotton to the welding head moving to the first target position, the first driving force is uniformly increased to the second driving force, and at the moment the welding head moves to the first target position, the second driving force is reduced to zero. This ensures that the air duct and sound insulation cotton are fully bonded to the instrument panel, further enhancing the connection strength between the air duct and sound insulation cotton and the instrument panel.

[0066] In actual implementation, ensure that the welding depth of the air duct and sound insulation cotton is 0.9mm-1mm when the welding head moves to the first target position.

[0067] In actual operation, the pressure exerted by this second driving force on the air duct and sound insulation cotton is 80-110 Bar.

[0068] In actual operation, the time from when the welding head comes into contact with the air duct and sound insulation cotton to when the welding head moves to the first target position is 3 seconds, and the entire welding process takes 7-8 seconds.

[0069] In some embodiments, the target area is provided with a limiting groove for accommodating sound insulation cotton. When the lower clamp of the lifting platform moves towards the upper clamp and stops at the first target position, the sound insulation cotton is interference-fitted with the limiting groove.

[0070] In this embodiment, a limiting groove is provided at the target area of ​​the instrument panel, and the sound insulation cotton is placed in the limiting groove. When the part of the welding head corresponding to the sound insulation cotton vibrates and rubs between the sound insulation cotton and the instrument panel, the welding head and the instrument panel have a larger contact surface, thereby enhancing the connection strength between the sound insulation cotton and the instrument panel.

[0071] In some embodiments, step 300, controlling the lower clamp of the lifting platform to move closer to the upper clamp until the welding head contacts the air duct and sound insulation cotton, includes:

[0072] When the lower clamp of the lifting platform moves closer to the upper clamp, the welding head comes into contact with the sound insulation cotton.

[0073] The welding head squeezes the sound insulation cotton and comes into contact with the air duct.

[0074] In this embodiment, the part of the welding head corresponding to the sound insulation cotton first contacts the sound insulation cotton and compresses the sound insulation cotton to make it interference fit with the limiting groove. Then the welding head contacts the air duct. With this design, when the part of the welding head corresponding to the sound insulation cotton vibrates and rubs between the sound insulation cotton and the instrument panel, the connection strength between the sound insulation cotton and the instrument panel is better.

[0075] In some embodiments, the welding head is equipped with a plurality of inserts arranged around the edges of the sound insulation cotton and the air duct, and the welding head presses the sound insulation cotton and the air duct together through the inserts.

[0076] In this embodiment, inserts are installed on both the portion of the welding head corresponding to the sound insulation cotton and the portion of the welding head corresponding to the air duct, and these inserts are arranged around the edges of the sound insulation cotton and the air duct.

[0077] In actual implementation, one half of the insert can be pressed onto the sound insulation cotton, and the other half of the insert can be pressed onto the dashboard, or one half of the insert can be pressed onto the air duct, and the other half of the insert can be pressed onto the dashboard. That is, the process of the insert following the vibration and friction of the welding head is used to weld both the sound insulation cotton and the dashboard onto the dashboard.

[0078] In some embodiments, the insert has multiple friction teeth evenly distributed on its end face used to press the sound insulation cotton and the air duct. This design is intended to improve the friction effect of the insert on the sound insulation cotton and the air duct.

[0079] In actual implementation, the length of the insert is 20mm and the width of the insert is 20mm.

[0080] In actual operation, the amplitude of the welding head is 3.6mm-3.8mm, and the welding frequency of the welding head is 90HZ-95HZ.

[0081] In some embodiments, this application also provides an electronic device, including a processor, a memory, and a computer program stored in the memory and executable on the processor. When the program is executed by the processor, it implements the various processes of the above-described friction welding machine welding method embodiments and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0082] It should be noted that the electronic devices in the embodiments of this application include the mobile electronic devices and non-mobile electronic devices described above.

[0083] This application also provides a non-transitory computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the above-described friction welding machine welding method embodiment and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0084] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0085] This application also provides a computer program product, including a computer program that, when executed by a processor, implements the welding method of the friction welding machine described above.

[0086] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0087] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface and the processor are coupled. The processor is used to run programs or instructions to implement the various processes of the above-described friction welding machine welding method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0088] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0089] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0090] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

[0091] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0092] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A welding method using a friction welding machine, characterized in that, The friction welding machine includes: an upper clamp and a lifting platform with a lower clamp, wherein a welding head is installed inside the upper clamp; The method includes: The instrument panel is mounted on the lower clamp, and air ducts and sound insulation cotton are installed in the target area of ​​the instrument panel; When the welding head in the upper clamp corresponds to the air duct and the sound insulation cotton, the lower clamp of the lifting platform is controlled to move closer to the upper clamp until the welding head contacts the air duct and the sound insulation cotton; Controlling the vibration and friction of the welding head to weld the air duct and the sound insulation cotton to the target area, and controlling the lower clamp of the lifting platform to continue moving towards the upper clamp until stopping at the first target position; controlling the lower clamp of the lifting platform to move towards the upper clamp includes: The method further includes controlling the lower clamp of the lifting platform to move closer to the upper clamp, and reducing the driving force of the lower clamp towards the upper clamp at a second target position; after reducing the driving force of the lower clamp towards the upper clamp at the second target position, the method further includes: Reduce the driving force of the lower clamp toward the upper clamp to the first driving force; At the moment when the welding head contacts the air duct and the sound insulation cotton, the first driving force is increased to the second driving force; At the moment when the welding head moves to the first target position, the second driving force is reduced to zero.

2. The welding method of the friction welding machine according to claim 1, characterized in that, After reducing the driving force of the lower clamp toward the upper clamp at the second target position, the method further includes: Reduce the driving force of the lower clamp toward the upper clamp to the first driving force; During the process from the welding head contacting the air duct and the sound insulation cotton to the welding head moving to the first target position, the first driving force is uniformly increased to the second driving force; At the moment when the welding head moves to the first target position, the second driving force is reduced to zero.

3. The welding method of the friction welding machine according to claim 1, characterized in that, The target area is provided with a limiting groove to accommodate the sound insulation cotton. When the lower clamp of the lifting platform moves closer to the upper clamp and stops at the first target position, the sound insulation cotton is interference-fitted with the limiting groove.

4. The welding method of the friction welding machine according to claim 3, characterized in that, Controlling the lower clamp of the lifting platform to move closer to the upper clamp until the welding head contacts the air duct and the sound insulation cotton includes: When the lower clamp of the lifting platform moves closer to the upper clamp, the welding head comes into contact with the sound insulation cotton. The welding head squeezes the sound insulation cotton and comes into contact with the air duct.

5. The welding method of the friction welding machine according to claim 1, characterized in that, The friction welding machine also includes: a robotic arm; The instrument panel is mounted on the lower clamp, and air ducts and sound insulation cotton are installed in the target area of ​​the instrument panel, including: The robotic arm is controlled to grip the instrument panel and mount it onto the lower fixture; Control the robotic arm to grip the air duct or the sound insulation cotton and install it in the target area of ​​the instrument panel.

6. The welding method of the friction welding machine according to any one of claims 1-5, characterized in that, The welding head is equipped with multiple inserts, which are arranged around the edges of the sound insulation cotton and the air duct. The welding head presses the sound insulation cotton and the air duct together with the inserts.

7. The welding method of the friction welding machine according to claim 6, characterized in that, The insert has multiple friction teeth evenly distributed on its end face used to press the sound insulation cotton and the air duct.

8. The welding method of the friction welding machine according to claim 6, characterized in that, The length of the insert is 20mm and the width of the insert is 20mm.

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