Automobile body-in-white skin coating auxiliary tool

Abstract

The utility model discloses a kind of automobile body-in-white skin bottom coating auxiliary tools, it is related to automobile manufacturing technical field, including mechanical arm structure, connecting structure, pressurizing structure, gas guide structure and pressure discharge structure.Mechanical arm structure is formed by multiple drive arms series connection and forms multiple degree-of-freedom motion system, connecting structure realizes rigid connection of mechanical arm and glue injection structure;Pressurizing structure is adjusted colloid pressure by threaded rod transmission, gas guide structure is prevented as one-way valve assembly colloid backflow, and pressure discharge structure is released residual pressure by electric push rod control gas path on-off release.Each structure cooperates and realizes the automatic precision glue injection of automobile body-in-white skin bottom coating, improves gluing efficiency and quality consistency.

Description

Technical Field

[0001] This utility model relates to the field of automobile manufacturing technology, specifically to an auxiliary tool for primer coating of automobile body-in-white. Background Technology

[0002] In the manufacturing process of automotive body-in-white, the skin primer coating is a key process to ensure the corrosion resistance and coating quality of the body. With the improvement of automation in the automotive industry, traditional adhesive application methods that rely on manual or semi-automatic equipment can no longer meet the production requirements of high precision and high efficiency. Especially in the adhesive application of complex curved skin, higher requirements are placed on the flexibility of equipment movement and the precision of pressure control.

[0003] Existing automated glue application equipment generally suffers from the following problems: First, the connection between the robotic arm and the glue injection structure is not rigid enough, resulting in positioning deviations during movement and affecting the accuracy of the glue application path; second, the linearity of pressure regulation in the glue delivery system is poor, making it unable to adapt to the delivery requirements of glues of different viscosities and prone to generating air bubbles due to pressure fluctuations; third, the lack of efficient unidirectional conduction and residual pressure release mechanisms leads to glue backflow or glue leakage caused by residual pressure in the pipeline after glue injection, which seriously restricts the stability of glue application quality. Utility Model Content

[0004] In view of the problems in the related technologies, this utility model proposes an auxiliary tool for the primer coating of automotive body-in-white, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0005] Therefore, the specific technical solution adopted by this utility model is as follows:

[0006] A primer coating tool for automotive body-in-white skin includes a robotic arm structure, a connecting structure connected to the robotic arm structure, a pressurizing structure connected to the connecting structure, a drive motor mounted on the pressurizing structure, an air guiding structure connected to the pressurizing structure, and a pressure relief structure matched to the air guiding structure. The robotic arm structure is connected to an adhesive injection structure composed of the drive motor, pressurizing structure, air guiding structure, and pressure relief structure through the connecting structure. The adhesive injection structure has an automated adhesive injection function.

[0007] Furthermore, the robotic arm structure includes a first drive arm, a second drive arm, a third drive arm, and a fourth drive arm. The first drive arm is fixedly installed at a fixed location. The drive end of the first drive arm is connected to the second drive arm. The drive end of the second drive arm is connected to the third drive arm. The drive end of the third drive arm is connected to the fourth drive arm. The drive end of the fourth drive arm is connected to the docking structure.

[0008] Furthermore, the connection structure includes a connecting base and a connecting rod. One end of the connecting base is fixedly connected to the connecting rod, and the connecting base is connected to the drive end of the fourth drive arm.

[0009] Furthermore, the pressurizing structure includes a pressure regulating pipe, a rubber hose, a liquid guide port, a threaded rod, a threaded block, and a guide rod. The pressure regulating pipe has rubber hoses on both sides, and a liquid guide port on one side of the rubber hose. A threaded rod is rotatably connected to a fixed point inside the pressure regulating pipe. A threaded block is driven by the threaded rod, and a guide rod is slidably connected to the threaded block. The pressure regulating pipe and the rubber hose are fixedly connected by a connecting rod.

[0010] Furthermore, the gas guiding structure includes a liquid guiding tube, a guide block, a transmission rod, a limiting block, a transmission block, a conical spring, and a retaining ring. A guide block is fixedly connected inside the liquid guiding tube, a transmission rod is slidably connected inside the guide block, a transmission block is fixedly connected to the transmission rod, a limiting block is connected to the transmission block, the limiting block is fixedly installed in the liquid guiding tube, a conical spring is provided on one side of the transmission block, and a retaining ring is provided on one side of the conical spring. The retaining ring is fixedly connected inside the liquid guiding tube.

[0011] Furthermore, the pressure relief structure includes an electric actuator, a gas guide block, a gas guide channel, a gas guide ring, a first gas guide hole, a second gas guide hole, and a fixed side plate. The driving end of the electric actuator is connected to the gas guide block, which has a gas guide channel. The gas guide block is slidably connected to the gas guide ring, which is fixedly installed in the mounting hole in the liquid guide tube. The gas guide ring has a first gas guide hole, and a second gas guide hole is opened on the periphery of one end of the gas guide block. The electric actuator is fixedly connected to the fixed side plate, and the electric actuator is fixedly installed on the liquid guide tube through the fixed side plate.

[0012] The beneficial effects of this utility model are as follows: the precise transmission design of the pressurization structure enables linear control of the colloid pressure, adapting to the delivery requirements of colloids of different viscosities; the one-way conduction function of the air guiding structure effectively avoids colloid backflow and bubble generation; the rapid pressure release mechanism of the pressure relief structure prevents residual adhesive leakage; the overall automation level, coating accuracy and operation stability of the white body skin primer coating are improved, the cost of manual intervention is reduced, and it can be widely applied to complex curved surface skin primer coating scenarios. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the main structure of an automotive body-in-white skin primer auxiliary tool according to an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the connection structure of an automotive body-in-white skin primer auxiliary tool according to an embodiment of the present utility model;

[0016] Figure 3This is a schematic diagram of a pressure regulating pipe for an automotive body-in-white skin primer auxiliary tool according to an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the pressurization structure of an automotive body-in-white skin primer applicator according to an embodiment of the present utility model;

[0018] Figure 5 This is a cross-sectional view of the liquid guide tube of an auxiliary tool for the primer coating of a car body white skin according to an embodiment of the present utility model;

[0019] Figure 6 This is a schematic diagram of the air guiding structure of an auxiliary tool for the undercoating of a car body-in-white skin according to an embodiment of the present utility model;

[0020] Figure 7 This is a schematic diagram of the pressure relief structure of an auxiliary tool for the primer coating of a car body white according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Robotic arm structure; 101. First drive arm; 102. Second drive arm; 103. Third drive arm; 104. Fourth drive arm; 2. Connection structure; 201. Connecting base; 202. Connecting rod; 3. Drive motor; 4. Pressurization structure; 401. Pressure regulating pipe; 402. Rubber hose; 403. Liquid guide port; 404. Threaded rod; 405. Threaded block; 406. Guide rod; 5. Air guiding structure; 501. Liquid guide pipe; 502. Guide block; 503. Transmission rod; 504. Limiting block; 505. Transmission block; 506. Conical spring; 507. Retaining ring; 6. Pressure discharge structure; 601. Electric push rod; 602. Air guide block; 603. Air guide channel; 604. Air guide ring; 605. First air guide hole; 606. Second air guide hole; 607. Fixed side plate. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] According to an embodiment of the present invention, an auxiliary tool for applying a base coat to the white body of an automobile is provided.

[0025] like Figure 1-7As shown, the automotive body-in-white skin primer applicator according to an embodiment of the present invention includes a robotic arm structure 1, a connecting structure 2 connected to the robotic arm structure 1, a pressurizing structure 4 connected to the connecting structure 2, a drive motor 3 installed on the pressurizing structure 4, an air guiding structure 5 connected to the pressurizing structure 4, and a pressure discharge structure 6 matched on the air guiding structure 5. The robotic arm structure 1 is connected to an adhesive injection structure composed of the drive motor 3, the pressurizing structure 4, the air guiding structure 5, and the pressure discharge structure 6 through the connecting structure 2. The adhesive injection structure has an automated adhesive injection function.

[0026] like Figure 1 As shown, the robotic arm structure 1 includes a first drive arm 101, a second drive arm 102, a third drive arm 103, and a fourth drive arm 104. The first drive arm 101 is fixedly installed at a fixed location. The drive end of the first drive arm 101 is connected to the second drive arm 102. The drive end of the second drive arm 102 is connected to the third drive arm 103. The drive end of the third drive arm 103 is connected to the fourth drive arm 104. The drive end of the fourth drive arm 104 is connected to the structure 2.

[0027] The robotic arm structure 1 serves as the main motion execution body of the entire auxiliary tool. Through the series drive of the first drive arm 101, the second drive arm 102, the third drive arm 103, and the fourth drive arm 104, a multi-degree-of-freedom motion system is formed. The first drive arm 101 is fixed to the work platform, and the spatial position can be flexibly adjusted through the subsequent drive arms connected in sequence. Finally, the drive end of the fourth drive arm 104 docks with the structure 2, driving the glue injection structure to complete the precise positioning and work path planning of the white body skin primer. Its multi-joint design ensures that the glue injection structure can adapt to the complex curved surface work requirements of different models and different parts, providing basic motion support for automated glue injection.

[0028] like Figure 2 As shown, the connecting structure 2 includes a connecting base 201 and a connecting rod 202. One end of the connecting base 201 is fixedly connected to the connecting rod 202, and the connecting base 201 is connected to the driving end of the fourth driving arm 104. The connecting structure 2 is fixed to the driving end of the fourth driving arm 104 through the connecting base 201, and the other end is connected to the pressure regulating pipe 401 and the glue tube 402 of the pressure structure 4 through the connecting rod 202, which plays a rigid connection role between the robotic arm and the glue injection structure. The stability of the connecting base 201 ensures the transmission of the robotic arm's motion accuracy to the glue injection structure. The connecting rod 202 serves as a transition component, synchronizing the driving force and position parameters of the robotic arm to the pressure structure 4, ensuring the stability of the glue delivery path during the glue injection process, and avoiding glue position deviation or glue leakage due to loose connection.

[0029] like Figure 2 , Figure 3 and Figure 4As shown, the pressurizing structure 4 includes a pressure regulating pipe 401, a rubber hose 402, a liquid guide port 403, a threaded rod 404, a threaded block 405, and a guide rod 406. The pressure regulating pipe 401 is provided with rubber hoses 402 on both sides, and a liquid guide port 403 is provided on one side of the rubber hose 402. The threaded rod 404 is rotatably connected to a fixed point inside the pressure regulating pipe 401. The threaded rod 404 is drivenly connected to the threaded block 405. The guide rod 406 is slidably connected to the threaded block 405. The pressure regulating pipe 401 and the rubber hose 402 are fixedly connected to the connecting rod 202.

[0030] The pressurizing structure 4 is the core component for colloid delivery and pressure regulation. It consists of a pressure regulating pipe 401, a colloid tube 402, a liquid guide port 403, a threaded rod 404, a threaded block 405, and a guide rod 406. The drive motor 3 drives the threaded rod 404 to rotate. Under the limiting action of the guide rod 406, the threaded block 405 slides axially along the pressure regulating pipe 401 in a sealed manner. Pressure regulation is achieved by changing the internal volume of the pressure regulating pipe 401. The colloid tube 402 receives external colloid through the liquid guide port 403. Under the pressurizing action of the threaded block 405, the colloid is unidirectionally delivered to the working end through the liquid guide pipe 501. Its fixed connection with the connecting structure 2 ensures the overall stability of the pressurizing structure 4 when the robotic arm moves. The precise transmission of the threaded rod and the threaded block realizes the linear control of the colloid pressure, adapting to the delivery needs of colloids with different viscosities.

[0031] like Figure 5 and Figure 6 As shown, the gas guiding structure 5 includes a liquid guiding pipe 501, a guide block 502, a transmission rod 503, a limiting block 504, a transmission block 505, a conical spring 506, and a retaining ring 507. The guide block 502 is fixedly connected inside the liquid guiding pipe 501, and the transmission rod 503 is slidably connected inside the guide block 502. The transmission rod 503 is fixedly connected to the transmission block 505, and the limiting block 504 is connected to the transmission block 505. The limiting block 504 is fixedly installed in the liquid guiding pipe 501. A conical spring 506 is provided on one side of the transmission block 505, and a retaining ring 507 is provided on one side of the conical spring 506. The retaining ring 507 is fixedly connected inside the liquid guiding pipe 501.

[0032] The air guiding structure 5, as a one-way valve assembly, achieves one-way flow and reverse sealing of the colloid through the coordinated action of the liquid guiding pipe 501, guide block 502, transmission rod 503, limit block 504, transmission block 505, conical spring 506, and retaining ring 507. When the pressurizing structure 4 pressurizes, the colloid pushes the transmission block 505 to compress the conical spring 506, causing the transmission rod 503 to slide along the guide block 502, opening the liquid guiding channel. When the pressurization stops, the conical spring 506 resets and pushes the transmission block 505 to fit against the limit block 504, closing the channel and preventing the colloid from flowing back. Its one-way control function ensures efficient delivery of the colloid during pressurization, avoiding backflow or air bubbles caused by pressure fluctuations. It forms a closed-loop pressure control with the pressurizing structure 4, improving the injection accuracy.

[0033] like Figure 7 As shown, the pressure relief structure 6 includes an electric actuator 601, an air guide block 602, an air guide channel 603, an air guide ring 604, a first air guide hole 605, a second air guide hole 606, and a fixed side plate 607. The driving end of the electric actuator 601 is connected to the air guide block 602. The air guide block 602 has an air guide channel 603. The air guide block 602 is slidably connected to the air guide ring 604. The air guide ring 604 is fixedly installed in the mounting hole of the liquid guide tube 501. The air guide ring 604 has a first air guide hole 605. A second air guide hole 606 is opened on the periphery of one end of the air guide block 602. The electric actuator 601 is fixedly connected to the fixed side plate 607. The electric actuator 601 is fixedly installed on the liquid guide tube 501 through the fixed side plate 607.

[0034] The pressure relief structure 6 comprises an electric actuator 601, an air guide block 602, an air guide channel 603, an air guide ring 604, a first air guide hole 605, a second air guide hole 606, and a fixed side plate 607, forming a pressure relief system. The electric actuator 601 drives the air guide block 602 to slide, controlling the opening and closing of the air guide channel 603 and the first air guide hole 605 and the second air guide hole 606 on the air guide ring 604. When pressure relief is required, the air guide channel 603 connects the internal and external air paths, releasing the residual pressure in the hose 402 through the air holes. Under normal conditions, the air path is cut off to maintain system sealing. In conjunction with the air guide structure 5, it quickly releases pipeline pressure after glue injection, preventing the glue from continuously seeping out due to residual pressure. At the same time, the precise control of the electric actuator enables the adjustment of the timing and amount of pressure relief, ensuring the accuracy of glue breakage at the end of the operation.

[0035] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0036] The robotic arm structure 1, consisting of a first drive arm 101, a second drive arm 102, a third drive arm 103, and a fourth drive arm 104, forms a conventional multi-degree-of-freedom robotic arm. The fourth drive arm 104 is connected via a connecting structure 2 to a glue-injection structure composed of a drive motor 3, a pressurizing structure 4, an air-guiding structure 5, and a pressure-discharging structure 6. The drive end of the drive motor 3 is connected to a threaded rod 404. During rotation, the threaded rod 404 linearly drives a threaded block 405, which is limited in rotation by a guide rod 406. The threaded block 405 slides in a sealed manner within the pressure regulating pipe 401. Since the pressure regulating pipe 401 is connected to the glue tube 402 via a liquid-guiding pipe 501, and is... The one-way valve structure composed of the air guiding structure 5 allows the pressure regulating pipe 401 to pressurize the hose 402 in one direction through the air guiding structure 5, so that the colloid injected into the hose 402 through the liquid guiding port 403 can be smoothly discharged from the outlet of the hose 402. The limiting block 504 of the air guiding structure 5 restricts the one-way transmission of the transmission block 505, and the conical spring 506 plays the role of resetting the transmission block 505, thereby realizing one-way conduction. The pressure discharge structure 6 drives the transmission of the air guiding block 602 through the electric push rod 601, realizes the air passage opening and closing control between the air guiding channel 603 and the first air guiding port 605 and the second air guiding port 606, thereby playing the role of pressure discharge.

[0037] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A primer applicator for automotive body-in-white skin, characterized in that, The system includes a robotic arm structure (1), a connecting structure (2) connected to the robotic arm structure (1), a pressurizing structure (4) connected to the connecting structure (2), a drive motor (3) installed on the pressurizing structure (4), an air guiding structure (5) connected to the pressurizing structure (4), and a pressure discharge structure (6) matched on the air guiding structure (5). The robotic arm structure (1) is connected to an adhesive injection structure composed of the drive motor (3), the pressurizing structure (4), the air guiding structure (5), and the pressure discharge structure (6) through the connecting structure (2). The adhesive injection structure has an automated adhesive injection function.

2. The automotive body-in-white skin primer applicator according to claim 1, characterized in that, The robotic arm structure (1) includes a first drive arm (101), a second drive arm (102), a third drive arm (103), and a fourth drive arm (104). The first drive arm (101) is fixedly installed at a fixed location, and the drive end of the first drive arm (101) is connected to the second drive arm (102).

3. The automotive body-in-white skin primer applicator according to claim 2, characterized in that, The second drive arm (102) is connected to the third drive arm (103) at its drive end, and the third drive arm (103) is connected to the fourth drive arm (104) at its drive end. The fourth drive arm (104) is connected to the docking structure (2).

4. The automotive body-in-white skin primer applicator according to claim 3, characterized in that, The connection structure (2) includes a connection base (201) and a connection rod (202). One end of the connection base (201) is fixedly connected to the connection rod (202), and the connection base (201) is connected to the drive end of the fourth drive arm (104).

5. The automotive body-in-white skin primer applicator according to claim 4, characterized in that, The pressurization structure (4) includes a pressure regulating pipe (401), a rubber hose (402), a liquid guide port (403), a threaded rod (404), a threaded block (405), and a guide rod (406). The pressure regulating pipe (401) is provided with rubber hoses (402) on both sides, and a liquid guide port (403) is provided on one side of the rubber hose (402). The pressure regulating pipe (401) is rotatably connected to a fixed point.

6. The automotive body-in-white skin primer applicator according to claim 5, characterized in that, The threaded rod (404) is connected to the threaded block (405), and the threaded block (405) is slidably connected to the guide rod (406). The pressure regulating pipe (401) and the rubber hose (402) are fixedly connected to the connecting rod (202).

7. The automotive body-in-white skin primer applicator according to claim 6, characterized in that, The gas guiding structure (5) includes a liquid guiding tube (501), a guide block (502), a transmission rod (503), a limiting block (504), a transmission block (505), a conical spring (506), and a retaining ring (507). The guide block (502) is fixedly connected inside the liquid guiding tube (501), and the transmission rod (503) is slidably connected inside the guide block (502). The transmission rod (503) is fixedly connected to the transmission block (505).

8. The automotive body-in-white skin primer applicator according to claim 7, characterized in that, The transmission block (505) is connected to the limit block (504), the limit block (504) is fixedly installed in the liquid guide tube (501), a conical spring (506) is provided on one side of the transmission block (505), and a retaining ring (507) is provided on one side of the conical spring (506), the retaining ring (507) is fixedly connected in the liquid guide tube (501).

9. The automotive body-in-white skin primer applicator according to claim 8, characterized in that, The pressure relief structure (6) includes an electric push rod (601), an air guide block (602), an air guide channel (603), an air guide ring (604), a first air guide hole (605), a second air guide hole (606), and a fixed side plate (607). The drive end of the electric push rod (601) is connected to the air guide block (602). An air guide channel (603) is provided on the air guide block (602). The air guide block (602) is slidably connected to the air guide ring (604). The air guide ring (604) is fixedly installed in the mounting hole provided in the liquid guide tube (501).

10. The automotive body-in-white skin primer applicator according to claim 9, characterized in that, A first air guide hole (605) is provided on the air guide ring (604), and a second air guide hole (606) is provided on the circumference of one end of the air guide block (602). The electric push rod (601) is fixedly connected to a fixed side plate (607), and the electric push rod (601) is fixedly installed on the liquid guide tube (501) through the fixed side plate (607).

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