Ultrasonic welding release agent, welding release agent supply device, and method of use

Abstract

The present application provides an ultrasonic welding release agent, which comprises the following components in percentage by mass: 90-95% of isododecane, 2-6% of polydimethylsiloxane, and 1-5% of liquid paraffin. The ultrasonic welding release agent is compounded with 90-95% of isododecane, 2-6% of polydimethylsiloxane, and 1-5% of liquid paraffin, quickly forms an ultrathin inert isolation film, efficiently blocks the aluminum welding joint, volatilizes fast, has no residue, does not pollute the wire harness, and does not affect the ultrasonic energy transmission and welding tension.

Description

Technical Field

[0001] This invention relates to the field of welding machine technology, and in particular to an ultrasonic welding anti-sticking agent, a welding anti-sticking agent supply device, and a method of using it. Background Technology

[0002] Ultrasonic aluminum wire welding is a common connection method in wire harness processing. During the welding process, the combined effect of ultrasonic vibration and high temperature causes aluminum atoms to rapidly diffuse to the surface of the welding head metal, forming micro-bonds with the welding head, resulting in aluminum sticking to the welding head. This phenomenon is prevalent in existing ultrasonic welding processes and has become a key issue affecting welding quality.

[0003] Existing technologies typically employ methods such as manual wiping and cleaning with ordinary solvents to alleviate weld head adhesion. However, conventional solvents cannot form a stable and effective isolation layer on the weld head surface, making it difficult to prevent aluminum atoms from adhering at the source. At the same time, some solvents have defects such as slow evaporation, large residue, reaction with metals, or affecting ultrasonic energy transmission. Not only is the anti-adhesion effect limited, but it can also lead to poor product appearance, weld head failure, reduced welding tensile strength, and even the scrapping of batches of products.

[0004] In addition, existing anti-sticking agents generally suffer from problems such as unreasonable formulation, poor stability, and insufficient environmental protection. They cannot simultaneously meet the industrial production requirements of rapid film formation, no residue, no interference with ultrasonic transmission, and efficient anti-sticking. They are also difficult to adapt to the continuous operation requirements of automated ultrasonic welding equipment. Therefore, the industry urgently needs an ultrasonic welding anti-sticking agent with excellent anti-sticking effect, stable performance, and environmental safety.

[0005] In view of this, it is necessary to improve the existing anti-sticking agent supply device to solve the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide an ultrasonic welding anti-sticking agent to solve the problem that existing anti-sticking agents cannot simultaneously meet the requirements of rapid film formation, no residue, and no interference with ultrasonic transmission.

[0007] To achieve the above objectives, the present invention provides an ultrasonic welding anti-sticking agent, which comprises the following components by mass percentage: 90%-95% isododecane, 2%-6% polydimethylsiloxane, and 1%-5% liquid paraffin.

[0008] As a further improvement of the present invention, the kinematic viscosity range of polydimethylsiloxane is 0.5 mm² / s-1 mm² / s, and the kinematic viscosity range of liquid paraffin is 1 mm² / s-3 mm² / s.

[0009] As a further improvement of the present invention, the ultrasonic welding anti-sticking agent further includes one or more of the following components in weight percentage: 0.5%-1.0% fluorine-modified polydimethylsiloxane, 0.1%-0.2% hindered phenolic antioxidant, 0.2%-0.5% nonionic surfactant, and 0.05%-0.1% benzotriazole corrosion inhibitor.

[0010] As a further improvement of the present invention, the ultrasonic welding anti-sticking agent further includes 1%-4% of isodecane.

[0011] The present invention also provides a welding anti-sticking agent supply device for coating an ultrasonic welding anti-sticking agent onto a welding head. The welding anti-sticking agent supply device includes a solvent box for holding the ultrasonic welding anti-sticking agent, a cover for opening or closing the solvent box, and an air blowing assembly. The air blowing assembly includes an air blowing head and a first driving assembly for driving the air blowing head to move horizontally. The solvent box is provided with an adsorption layer for adsorbing the ultrasonic welding anti-sticking agent. The welding head squeezes the adsorption layer to coat the ultrasonic welding anti-sticking agent.

[0012] As a further improvement of the present invention, the blowing head has an upward blowing port, and the first driving component includes a servo motor and a connector, the connector connecting the servo motor and the blowing head.

[0013] As a further improvement of the present invention, the solvent box is provided with an adapter block, the cover is rotatably connected to the adapter block, and the welding anti-sticking agent supply device further includes a second driving component, which is used to drive the cover to rotate relative to the adapter block to open or close the solvent box.

[0014] As a further improvement of the present invention, the second driving component is a driving cylinder connected to the cover.

[0015] As a further improvement of the present invention, the welding anti-sticking agent supply device further includes a third driving assembly, the third driving assembly including a horizontal support plate, a horizontal guide rail disposed on the horizontal support plate, a vertical support plate connected to and movable relative to the horizontal guide rail, a horizontal cylinder for driving the vertical support plate to move along the horizontal guide rail, a vertical guide rail disposed on the vertical support plate, a support member connected to and movable relative to the vertical guide rail, and a vertical cylinder for driving the support member to move along the vertical guide rail.

[0016] As a further improvement of the present invention, the welding anti-sticking agent supply device further includes a liquid supply component, which includes a liquid storage tank, a liquid outlet pipe, and a solenoid valve for controlling the liquid outlet volume of the liquid storage tank. The liquid outlet pipe is used to inject the ultrasonic welding anti-sticking agent in the liquid storage tank into the solvent box.

[0017] The present invention also provides a method of using the welding anti-sticking agent supply device as described above, characterized by comprising the following steps:

[0018] S1: The first drive component drives the air blowing head to move below the welding head, while the air blowing head blows air toward the welding head; S2: The second drive component drives the cover to open to expose the adsorption layer; S3: The third drive component drives the solvent box to contact the welding head with the adsorption layer; S4: The second and third drive components drive the cover and solvent box to reset respectively.

[0019] The beneficial effects of the present invention are as follows: The ultrasonic welding anti-sticking agent of the present invention is compounded with 90%–95% isododecane, 2%–6% polydimethylsiloxane and 1%–5% liquid paraffin, which quickly forms an ultra-thin inert isolation film, effectively preventing aluminum from sticking to the welding joint, volatilizing quickly, leaving no residue, not contaminating the wire harness, and not affecting the ultrasonic energy transmission and welding pull force. Attached Figure Description

[0020] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a three-dimensional structural schematic diagram of the welding anti-sticking agent supply device of the present invention; Figure 2 This is a three-dimensional structural schematic diagram of the welding anti-sticking agent supply device of the present invention from another angle; Figure 3 This is a flowchart of the method of using the welding anti-sticking agent supply device of the present invention.

[0021] Reference numerals: 100, Welding anti-sticking agent supply device; 1, Solvent box; 11, Adapter block; 2, Cover; 3, Air blowing assembly; 31, Air blowing head; 311, Air blowing port; 32, First drive assembly; 321, Servo motor; 322, Connector; 4, Adsorption layer; 5, Second drive assembly; 6, Third drive assembly; 61, Horizontal support plate; 62, Horizontal guide rail; 63, Vertical support plate; 64, Horizontal cylinder; 65, Vertical guide rail; 66, Support component; 67, Vertical cylinder; 7, Liquid supply assembly; 71, Liquid storage tank; 72, Liquid outlet pipe; 73, Solenoid valve. Detailed Implementation

[0022] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0025] This invention provides an ultrasonic welding anti-sticking agent, which comprises the following components by mass percentage: 90%-95% isododecane, 2%-6% polydimethylsiloxane, and 1%-5% liquid paraffin.

[0026] Isododecane, as a base carrier solvent, allows for rapid evaporation, leaving no residue after film formation. It can dissolve and disperse other functional components, ensuring solution homogeneity. The purity of isododecane needs to be greater than or equal to 99% to avoid impurity residue; the evaporation rate at 15-30℃ matches the automated welding cycle.

[0027] Polydimethylsiloxane is used as the core anti-sticking component to form an inert siloxane molecular film, which blocks the diffusion of aluminum atoms.

[0028] Liquid paraffin, as a film-forming aid and lubricant, enhances the adhesion and wear resistance of the siloxane film on the welding head surface, extends the number of welding passes after a single application, and improves the wettability of the solution in the adsorption layer 4. In this embodiment, food-grade white oil is selected as the liquid paraffin.

[0029] The rapid evaporation of isododecane allows polydimethylsiloxane and liquid paraffin to be evenly spread on the surface of the welding head, forming a dense, inert composite film with a siloxane skeleton and liquid paraffin filling, achieving a balance between anti-sticking effect, energy permeability, and wear resistance. Using a ratio of 90%-95% isododecane, 2%-6% polydimethylsiloxane, and 1%-5% liquid paraffin, a uniform, ultra-thin inert isolation film can be quickly formed on the welding head surface, effectively preventing aluminum atoms from adhering to the welding head. The rapid evaporation of isododecane leaves no residue after welding, polydimethylsiloxane provides stable anti-sticking properties, and liquid paraffin assists in film formation and improves lubricity. The synergistic effect of these three components ensures that the anti-sticking agent does not affect ultrasonic energy transmission, does not contaminate the wire harness, and does not reduce welding strength. Furthermore, the formulation is environmentally friendly and non-toxic, easy to prepare, and suitable for automated mass production.

[0030] To verify that the formulation of the ultrasonic welding anti-sticking agent of the present invention has excellent anti-sticking effect, leaves no residue, and does not affect the welding strength in ultrasonic aluminum wire welding, the following test was conducted.

[0031] Welding material: 0.5mm aluminum wire; Welding equipment: ultrasonic aluminum wire welding machine; Welding parameters: standard production parameters. Examples and comparative cases are provided below.

[0032] Example 1: 95% isododecane, 3% polydimethylsiloxane, 2% liquid paraffin; Example 2: 92% isododecane, 5% polydimethylsiloxane, 3% liquid paraffin; Comparative Example 1: 95% isododecane, 1% polydimethylsiloxane, 4% liquid paraffin; Comparative Example 2: 90% isododecane, 8% polydimethylsiloxane, 2% liquid paraffin; Comparative Example 3: 95% isododecane, 5% polydimethylsiloxane; Comparative Example 4: 91% isododecane, 3% polydimethylsiloxane, 6% liquid paraffin; Comparative Example 5: 100% isododecane.

[0033]

[0034] The kinematic viscosity range of polydimethylsiloxane is 0.5 mm² / s to 1 mm² / s, and the kinematic viscosity range of liquid paraffin is 1 mm² / s to 3 mm² / s.

[0035] The kinematic viscosity of polydimethylsiloxane is preferably 0.65 mm² / s. If the viscosity is too high (1 mm² / s), the film will be too thick, which will reduce the ultrasonic energy. If the viscosity is too low (<0.5 mm²), the film will be discontinuous and the anti-sticking effect will be poor.

[0036] The kinematic viscosity of liquid paraffin is preferably 2 mm². If the viscosity is too high (3 mm² / s), the welding head will slip and affect the welding positioning. If the viscosity is too low (<1 mm²), the film formation will be discontinuous, the adhesion will be poor, and the anti-sticking will fail.

[0037] The ultrasonic welding anti-sticking agent further includes one or more of the following components in weight percentage: 0.5%–1.0% fluorine-modified polydimethylsiloxane, 0.1%–0.2% hindered phenolic antioxidant, 0.2%–0.5% nonionic surfactant, and 0.05%–0.1% benzotriazole corrosion inhibitor.

[0038] Fluorine-modified polydimethylsiloxane significantly improves the high temperature resistance and aging resistance of the anti-sticking film, and remains stable even at welding temperatures above 300℃.

[0039] Hindered phenolic antioxidants inhibit the oxidative deterioration of solvents during storage and high-temperature welding, extending the shelf life of solvents from 3 to 6 months or more. At the same time, they can prevent the oxidation failure of the surface film of the weld head and improve the anti-sticking stability.

[0040] Nonionic surfactants can be selected from polyether-modified silicone oils to improve the spreadability and film uniformity of the solution on the welding head surface, eliminate local missed coating phenomena, enhance the adsorption and release capacity of the adsorbent to the solution, and ensure the consistency of automatic coating.

[0041] Benzotriazole corrosion inhibitors form a passivation film on the metal surface of the weld joint, preventing corrosion from trace impurities after long-term use.

[0042] If applied to fast-paced production, ultrasonic welding anti-sticking agent also includes 1%-4% isodecane. Correspondingly, the amount of isododecane used is reduced within the range, which can further accelerate the solvent evaporation rate. Film can be formed in 0.5-1 seconds after application, which is suitable for automated production lines with higher pacing.

[0043] like Figures 1 to 2 As shown, this embodiment also provides a welding anti-sticking agent supply device 100 for coating the welding head with ultrasonic welding anti-sticking agent.

[0044] The welding anti-sticking agent supply device 100 includes a solvent box 1 for holding ultrasonic welding anti-sticking agent, a cover 2 for opening or closing the solvent box 1, and an air blowing assembly 3. The air blowing assembly 3 includes an air blowing head 31 and a first driving assembly 32 for driving the air blowing head 31 to move horizontally. The solvent box 1 is provided with an adsorption layer 4 for adsorbing ultrasonic welding anti-sticking agent. The welding head squeezes the adsorption layer 4 to coat the ultrasonic welding anti-sticking agent.

[0045] The coating can be applied to the weld head after each weld, or after multiple welds.

[0046] By setting up a dedicated solvent box 1 to centrally store the ultrasonic welding anti-stick agent, the ultrasonic welding anti-stick agent can be stored quantitatively, stably, and cleanly, avoiding volatilization, leakage, or contamination, ensuring the stability of the ultrasonic welding anti-stick agent composition, and improving welding consistency.

[0047] The cover 2 can automatically close and seal the solvent box 1 during non-coating periods, effectively reducing the evaporation loss of the ultrasonic welding anti-stick agent, extending the service life of the ultrasonic welding anti-stick agent, and preventing dust and impurities from falling into the solvent box 1 and contaminating the ultrasonic welding anti-stick agent, thus ensuring coating quality.

[0048] The air blowing head 31 can pre-blow the surface of the welding head before welding to remove residual aluminum shavings, oil stains and impurities, so as to avoid impurities affecting the film formation of ultrasonic welding anti-sticking agent and welding quality; the first driving component 32 drives the air blowing head 31 to move horizontally and directionally, so that the airflow evenly covers the entire working surface of the welding head, cleaning thoroughly without dead corners and improving the cleaning effect.

[0049] The adsorption layer 4 can uniformly adsorb and retain the ultrasonic welding anti-stick agent, avoiding waste or contamination caused by the flow and dripping of liquid ultrasonic welding anti-stick agent; the welding head can directly squeeze the adsorption layer 4 to complete the micro-scale, uniform, and ultra-thin coating, which ensures the anti-stick effect without over-coating and causing residue, slippage, or affecting the ultrasonic energy transmission. In this embodiment, the adsorption layer 4 is wool felt.

[0050] The 100 welding anti-sticking agent supply device integrates automatic cleaning, automatic coating, automatic sealing, and automatic replenishment. It requires no manual operation and can quickly complete the pretreatment of the welding head before welding, completely solving the problem of welding head sticking during aluminum wire welding. It improves welding stability, extends welding head life, and reduces product scrap rate, making it suitable for batch automated production lines.

[0051] In this embodiment, the air blowing head 31 has an upward-facing air outlet 311. The first drive assembly 32 includes a servo motor 321 and a connector 322, which connects the servo motor 321 and the air blowing head 31. The upward-facing air outlet 311 of the air blowing head 31 ensures that the airflow acts directly and precisely on the welding head's working surface, guaranteeing efficient removal of impurities and preventing incomplete cleaning due to airflow direction deviation.

[0052] The air blowing head 31 is 3.5mm below the welding head, moves at a speed of 10mm / s, and has an air pressure of not less than 0.5Mpa. The air blowing port 311 is 24. The 0.3mm rectangular opening ensures even airflow coverage.

[0053] The first drive component 32 uses a servo motor 321 in conjunction with a connector 322 to drive the air blowing head 31. This enables precise control of the air blowing head 31's moving speed and stroke position, ensuring a smooth and uniform blowing process. This allows the airflow to evenly cover the entire welding head surface, improving cleaning consistency and reliability, and meeting the high-precision operation requirements of automated welding.

[0054] Of course, in other embodiments, the air blowing head 31 can also blow over the welding head from the side, and blowing the welding head from a fixed direction can also achieve a similar effect, only requiring an increase in the air blowing power.

[0055] The solvent container 1 is provided with a connecting block 11, and the cover 2 is rotatably connected to the connecting block 11. The welding anti-sticking agent supply device 100 also includes a second driving component 5, which is used to drive the cover 2 to rotate relative to the connecting block 11 to open or close the solvent container 1. By setting the connecting block 11 on the solvent container 1 and rotatably connecting the cover 2 to the connecting block 11, and cooperating with the second driving component 5 to drive the cover 2 to rotate and open, the automatic opening and closing of the solvent container 1 can be realized. The opening and closing action is stable, smooth, and accurate in positioning. It can reliably close and seal in the non-coated state, effectively preventing the ultrasonic welding anti-sticking agent from volatilizing and leaking, and preventing external dust and impurities from contaminating it. This ensures the stability of the ultrasonic welding anti-sticking agent composition and the cleanliness of the coating. At the same time, the structure is simple and compact, the movement is reliable, and it is suitable for automated continuous production scenarios.

[0056] In this embodiment, the solvent container 1 has an upward-facing opening. By controlling the rotation of the cover 2 relative to the solvent container 1, the opening of the solvent container 1 can be fully exposed, allowing the welding head to enter the solvent container 1. In other embodiments, the opening of the solvent container 1 can also be exposed by setting the second drive assembly 5 to push and pull the cover 2 horizontally.

[0057] The second drive component 5 is a drive cylinder connected to the cover 2. The two ends of the drive cylinder are pivotally connected to the cover 2 and the support structure, respectively. This structure is conventional and will not be described in detail here.

[0058] The welding anti-sticking agent supply device 100 further includes a third driving assembly 6, which includes a horizontal support plate 61, a horizontal guide rail 62 disposed on the horizontal support plate 61, a vertical support plate 63 connected to the horizontal guide rail 62 and movable relative to the horizontal guide rail 62, a horizontal cylinder 64 for driving the vertical support plate 63 to move along the horizontal guide rail 62, a vertical guide rail 65 disposed on the vertical support plate 63, a support member 66 connected to the vertical guide rail 65 and movable relative to the vertical guide rail 65, and a vertical cylinder 67 for driving the support member 66 to move along the vertical guide rail 65.

[0059] The third drive component 6 adopts a dual-guide rail drive structure consisting of a horizontal cylinder 64, a vertical cylinder 67, a horizontal guide rail 62, and a vertical guide rail 65. This structure can precisely control the solvent box 1 to complete the combined motion of horizontal feeding and vertical lifting. The coating position and stroke height are controllable, the operation is smooth and stable, and the positioning accuracy is high. This ensures stable contact coating between the welding head and the adsorption layer 4, avoiding deviation or impact. The overall structure has good rigidity and reliable operation, making it suitable for high-frequency and long-term stable operation of automated welding equipment, effectively improving coating consistency and the service life of the device.

[0060] In this embodiment, the solvent container 1 is movable by providing the third driving component 6, thus allowing the welding anti-sticking agent supply device 100 to be applied to existing welding equipment without requiring adjustments to the structure or workflow of the welding equipment. Of course, in other embodiments, the solvent container 1 can be kept stationary while the welding head is driven to move downwards.

[0061] The welding anti-sticking agent supply device 100 further includes a liquid supply component 7, which includes a liquid storage tank 71, a liquid outlet pipe 72, and a solenoid valve 73 for controlling the liquid output from the liquid storage tank 71. The liquid outlet pipe 72 is used to inject the ultrasonic welding anti-sticking agent in the liquid storage tank 71 into the solvent box 1. Through the cooperation of the liquid storage tank 71, the liquid outlet pipe 72, and the solenoid valve 73, the liquid supply component 7 can automatically, accurately, and quantitatively replenish the ultrasonic welding anti-sticking agent to the solvent box 1, stably maintaining the normal liquid level in the solvent box 1. This avoids coating failure or excessive overflow due to insufficient ultrasonic welding anti-sticking agent, eliminating the need for frequent manual refilling, improving the efficiency of automated continuous production, and ensuring uniform coating dosage, thus guaranteeing a stable and reliable welding anti-sticking effect.

[0062] The method of using the welding anti-sticking agent supply device 100 includes the following steps: S1: The first drive component 32 drives the air blowing head 31 to move below the welding head, and at the same time the air blowing head 31 blows air toward the welding head; before welding, the working surface of the welding head is automatically pre-cleaned. The moving air blowing thoroughly removes the aluminum chips, impurities and oil stains remaining on the surface of the welding head, so as to avoid impurities affecting the uniformity of the subsequent anti-sticking agent film formation and the welding quality, and ensure that the surface of the welding head is clean, providing a good foundation for the ultrasonic welding anti-sticking agent coating.

[0063] S2: The second drive component 5 drives the cover 2 to open to expose the adsorption layer 4; by automatically opening the cover 2, the adsorption layer 4 with the ultrasonic welding anti-sticking agent is precisely exposed to the working position, ensuring that the welding head can smoothly contact the adsorption layer 4 to complete the coating; at the same time, the opening action is precisely coordinated with the subsequent process to ensure the continuous and smooth automation process and avoid structural interference.

[0064] S3: The third driving component 6 drives the solvent box 1 to contact the welding head with the adsorption layer 4; the driving solvent box 1 completes the combined positioning action of horizontal feeding and vertical lifting, so that the welding head and the adsorption layer 4 are in stable and gentle contact, so that the anti-sticking agent is uniformly, micro-amount and ultra-thinly coated on the surface of the welding head, which not only ensures the anti-sticking effect, but also does not produce excess residue and does not affect the transmission of ultrasonic energy.

[0065] S4: The second drive assembly 5 and the third drive assembly 6 respectively drive the cover 2 and the solvent box 1 to reset. After coating is completed, each component quickly returns to its initial position, and the solvent box 1 is sealed in time to prevent the ultrasonic welding anti-stick agent from evaporating and causing contamination. At the same time, it prepares for the next welding cycle, realizing automatic cyclic operation of the device and improving the stability and efficiency of continuous production.

[0066] The ultrasonic welding anti-sticking agent of this invention is formulated with 90%–95% isododecane, 2%–6% polydimethylsiloxane, and 1%–5% liquid paraffin to rapidly form an ultra-thin inert isolation film, effectively preventing aluminum from sticking to the weld joint. It evaporates quickly, leaves no residue, does not contaminate the wire harness, and does not affect ultrasonic energy transmission or welding tensile strength. The welding anti-sticking agent supply device 100 of this invention uses a solvent box 1 and a cover 2 for sealed storage, reducing the volatilization and contamination of the ultrasonic welding anti-sticking agent. The air blowing component 3 thoroughly cleans the weld joint, ensuring the quality of the film formation. The welding anti-sticking agent supply device 100 of this invention is used by first blowing and cleaning, then coating, and finally resetting. The process is automated and the sequence is smooth. It can be applied after single or multiple welding operations, making it flexible in use.

[0067] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

Claims

1. An ultrasonic welding anti-sticking agent, characterized in that: The ultrasonic welding anti-sticking agent comprises the following components by weight percentage: 90%–95% isododecane, 2%–6% polydimethylsiloxane, and 1%–5% liquid paraffin.

2. The ultrasonic welding anti-sticking agent according to claim 1, characterized in that: The kinematic viscosity range of polydimethylsiloxane is 0.5 mm² / s to 1 mm² / s, and the kinematic viscosity range of liquid paraffin is 1 mm² / s to 3 mm² / s.

3. The ultrasonic welding anti-sticking agent according to claim 1, characterized in that: The ultrasonic welding anti-sticking agent further includes one or more of the following components in weight percentage: 0.5%–1.0% fluorine-modified polydimethylsiloxane, 0.1%–0.2% hindered phenolic antioxidant, 0.2%–0.5% nonionic surfactant, and 0.05%–0.1% benzotriazole corrosion inhibitor.

4. The ultrasonic welding anti-sticking agent according to claim 1, characterized in that: The ultrasonic welding anti-sticking agent also includes 1%–4% isodecane.

5. A welding anti-sticking agent supply device for coating a welding head with the ultrasonic welding anti-sticking agent as described in any one of claims 1-4, characterized in that: The welding anti-sticking agent supply device includes a solvent box for holding the ultrasonic welding anti-sticking agent, a cover for opening or closing the solvent box, and an air blowing assembly. The air blowing assembly includes an air blowing head and a first driving assembly for driving the air blowing head to move horizontally. The solvent box is provided with an adsorption layer for adsorbing the ultrasonic welding anti-sticking agent. The welding head squeezes the adsorption layer to coat the ultrasonic welding anti-sticking agent.

6. The welding anti-sticking agent supply device according to claim 5, characterized in that: The air blowing head has an upward-facing air outlet, and the first drive assembly includes a servo motor and a connector, the connector connecting the servo motor and the air blowing head.

7. The welding anti-sticking agent supply device according to claim 5, characterized in that: The solvent box is provided with an adapter block, and the cover is rotatably connected to the adapter block. The welding anti-sticking agent supply device also includes a second driving component, which is used to drive the cover to rotate relative to the adapter block to open or close the solvent box.

8. The welding anti-sticking agent supply device according to claim 7, characterized in that: The second drive component is a drive cylinder connected to the cover.

9. The welding anti-sticking agent supply device according to claim 5, characterized in that: The welding anti-sticking agent supply device further includes a third driving assembly, which includes a horizontal support plate, a horizontal guide rail disposed on the horizontal support plate, a vertical support plate connected to and movable relative to the horizontal guide rail, a horizontal cylinder for driving the vertical support plate to move along the horizontal guide rail, a vertical guide rail disposed on the vertical support plate, a support member connected to and movable relative to the vertical guide rail, and a vertical cylinder for driving the support member to move along the vertical guide rail.

10. The welding anti-sticking agent supply device according to claim 5, characterized in that: The welding anti-sticking agent supply device further includes a liquid supply component, which includes a liquid storage tank, a liquid outlet pipe, and a solenoid valve for controlling the liquid output from the liquid storage tank. The liquid outlet pipe is used to inject the ultrasonic welding anti-sticking agent in the liquid storage tank into the solvent box.

11. A method of using the welding anti-sticking agent supply device as described in any one of claims 5-10, characterized in that: Includes the following steps: S1: The first drive component drives the air blowing head to move below the welding head, while the air blowing head blows air toward the welding head; S2: The second drive component drives the cover to open to expose the adsorption layer; S3: The third drive component drives the solvent box to contact the welding head with the adsorption layer; S4: The second and third drive components drive the cover and solvent box to reset respectively.

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