Windscreen wiper motor ventilation cover assembling device

Abstract

The utility model discloses an assembly device for a ventilating cover of a wiper motor, belongs to the technical field of wiper motors, and solves the problem of poor assembly quality caused by manual assembly in the existing assembly process of the ventilating cover of the wiper motor. The device comprises a base, a fixing support and a fixing support which are used for fixing a wiper motor are arranged on the base, a telescopic air cylinder is fixed to the fixing support, a vacuum adsorption seat used for adsorbing a ventilation cover is fixed to a piston rod of the telescopic air cylinder, and the vacuum adsorption seat and the telescopic air cylinder are both communicated with an air path assembly; the piston rod drives the vacuum adsorption base to vertically move downwards to press the ventilation cover on a ventilation opening of the windscreen wiper motor. According to the automatic press-fitting device, automatic adsorption and automatic press-fitting of the ventilation covers are achieved through cooperation of the vacuum adsorption base, the telescopic air cylinder and the air path assembly, automatic press-fitting is achieved, the consistency of the direction and the size of press-fitting force is guaranteed, and the press-fitting consistency of all the ventilation covers is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of wiper motor technology, specifically to a wiper motor vent cover assembly device. Background Technology

[0002] As a core drive component, the sealing performance of the wiper motor directly affects the safety and reliability of the entire vehicle. In existing technologies, the assembly of the wiper motor vent cover is typically done manually, requiring operators to manually grasp and position the vent cover for press-fitting. Sampling tests have revealed that the high dispersion of axial pressing force during manual assembly leads to insufficient consistency in the interference fit between the vent cover and the motor housing, frequently resulting in incomplete assembly and severely impacting the quality of motor assembly. Utility Model Content

[0003] To address the aforementioned problems in the prior art, this utility model provides a wiper motor vent cover assembly device, which solves the problem of poor assembly quality caused by manual assembly in the existing wiper motor vent cover assembly process.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A wiper motor vent cover assembly device is provided, including a base, a fixing support and a fixing bracket for fixing the wiper motor are provided on the base, a telescopic cylinder is fixed on the fixing bracket, and a vacuum adsorption seat for adsorbing the vent cover is fixed on the piston rod of the telescopic cylinder. Both the vacuum adsorption seat and the telescopic cylinder are connected to an air circuit assembly; wherein, the piston rod drives the vacuum adsorption seat to move vertically downward to press the vent cover onto the vent of the wiper motor.

[0006] The beneficial effects of this solution are as follows: The telescopic cylinder drives the vacuum adsorption seat, thereby pressing the vent cap onto the wiper motor's vent, achieving automated pressing. The coordination between the telescopic cylinder and the air circuit components ensures consistency in the direction and magnitude of the pressing force, guaranteeing consistent assembly depth for each product. This significantly improves the sealing performance qualification rate of the wiper motor and fundamentally solves the problem of inconsistent interference fit between the vent cap and the motor housing caused by uneven operating force during manual assembly. Simultaneously, the vacuum adsorption seat enables automatic adsorption and precise positioning of the vent cap, avoiding potential misalignment during manual installation, ensuring the perpendicularity of the pressing path, and reducing coaxiality errors between the vent cap and the vent.

[0007] Furthermore, the fixed support includes a base plate bolted to the base. The base plate has a U-shaped seat and at least two positioning pins. The opening slot of the U-shaped seat fits snugly against the outer wall of the wiper motor body. Each positioning pin has a positioning pin that inserts into the positioning hole of the wiper motor. The mating design of the U-shaped seat and positioning pins ensures precise positioning of both the wiper motor body and the positioning hole, eliminating the risk of motor misalignment during assembly. The bolted base plate facilitates quick disassembly and adjustment, adapting to different models of wiper motors.

[0008] Furthermore, lifting handles are provided on both sides of the base plate. The lifting handles are designed to facilitate the operator's movement of the fixed support.

[0009] Furthermore, the fixed support includes an upright frame and a crossbeam fixed to the top of the upright frame; the telescopic cylinder is vertically fixed to the end of the crossbeam. The fixed support composed of the upright frame and the crossbeam provides stable support, ensuring that the telescopic cylinder always maintains a vertical movement trajectory and avoiding deviations in the pressing angle.

[0010] Furthermore, two guide rods are slidably installed inside the telescopic cylinder, symmetrically positioned on both sides of the piston rod. Each guide rod and the piston rod are fixedly connected to the connecting plate. The vacuum adsorption seat is fixed to the connecting plate and located directly above the wiper motor vent. The symmetrically arranged guide rods balance the force on the piston rod, preventing the vacuum adsorption seat from tilting during the pressing process and ensuring the straightness and stability of the pressing path.

[0011] Furthermore, the pneumatic circuit assembly includes a cylinder solenoid valve and a vacuum solenoid valve, which are respectively connected to the telescopic cylinder and the vacuum adsorption seat. The pressure ports of the cylinder solenoid valve and the vacuum solenoid valve are respectively connected to the gas source and the vacuum generator, and both the cylinder solenoid valve and the vacuum solenoid valve are electrically connected to the controller. The cylinder solenoid valve and the vacuum solenoid valve are linked with the controller to facilitate precise control of the pneumatic circuit, automatically complete the adsorption, pressing, and resetting processes, reduce manual intervention, and improve efficiency.

[0012] Furthermore, the controller is electrically connected to the button box. The buttons on the button box support one-button operation, reducing operational complexity and improving safety.

[0013] Furthermore, a pressure regulating valve is installed on the gas source pipeline, and the pressure regulating valve is fixed on a fixed bracket. The pressure regulating valve can dynamically adjust the gas source pressure to adapt to the pressing force requirements of different models of vent caps, thereby enhancing the versatility of the equipment.

[0014] Furthermore, the vacuum adsorption seat includes a vacuum column and an adsorption column. A vacuum chamber, connected to a vacuum solenoid valve, is formed on the end face of the vacuum column. One end of the adsorption column is sealed within the vacuum chamber, and the other end of the adsorption column has an adsorption groove for adsorbing the vent cover. The adsorption groove contains multiple adsorption pores connected to the vacuum chamber. The vacuum chamber provides a stable negative pressure adsorption force, and the design of the adsorption groove and multiple adsorption pores increases the contact area of ​​the vent cover, preventing it from falling off.

[0015] Furthermore, two sealing rings are provided at the connection end between the adsorption column and the vacuum column. A positioning groove, which mates with a fixing knob, is located between the two sealing rings on the outer wall of the adsorption column. The fixing knob is threadedly connected to the outer wall of the vacuum column, with one end passing through the outer wall and inserted into the positioning groove. The double sealing rings and positioning groove mate with the fixing knob to ensure the airtight connection between the adsorption column and the vacuum column, preventing vacuum leakage. The threaded knob connection simplifies the adsorption column assembly and disassembly process, facilitating quick replacement or cleaning. Attached Figure Description

[0016] Figure 1 A schematic diagram of the assembly device for the windshield wiper motor vent cover;

[0017] Figure 2 Axonometric drawing of the wiper motor vent cover assembly;

[0018] Figure 3 Side view of the wiper motor vent cover assembly;

[0019] Figure 4 This is a cross-sectional schematic diagram of a vacuum adsorption seat;

[0020] Figure 5 This is a schematic diagram of the adsorption column structure;

[0021] Figure 6 This is a schematic diagram of the adsorption column structure;

[0022] Figure 7 This is a schematic diagram of the vent on the wiper motor.

[0023] The components are as follows: 100, base; 200, fixed support; 21, bottom plate; 211, lifting handle; 22, U-shaped seat; 23, positioning column; 300, fixed bracket; 31, upright frame; 32, crossbeam; 400, telescopic cylinder; 41, piston rod; 42, guide rod; 43, cylinder solenoid reversing valve; 44, pressure regulating valve; 500, vacuum adsorption seat; 51, vacuum column; 511, connecting plate; 512, vacuum chamber; 513, fixed knob; 52, adsorption column; 521, adsorption tank; 522, adsorption vent; 53, vacuum solenoid valve; 54, vacuum generator; 600, button box; 700, vent cover; 800, wiper motor; 81, vent. Detailed Implementation

[0024] The specific embodiments of this utility model are described below to enable those skilled in the art to understand this utility model. However, it should be understood that this utility model is not limited to the scope of the specific embodiments. For those skilled in the art, as long as various changes are within the spirit and scope of this utility model as defined and determined by the appended claims, these changes are obvious. All utility model creations utilizing the concept of this utility model are within the scope of protection.

[0025] Existing technology involves manual assembly of the vent cover 700 of the wiper motor 800, resulting in insufficient consistency in the interference fit between the vent cover 700 and the motor housing, severely affecting the quality of motor assembly. To address the poor assembly quality caused by manual assembly of the vent cover 700 in existing wiper motor 800 assembly processes, this application provides a wiper motor vent cover assembly device. Through the cooperation of a vacuum adsorption seat 500, a telescopic cylinder 400, and an air circuit assembly, the device achieves automatic adsorption and automatic pressing of the vent cover 700. This not only achieves automated pressing but also ensures consistency in the direction and magnitude of the pressing force, guaranteeing the consistency of pressing for each vent cover 700 and improving the overall quality of the device.

[0026] The structure of the wiper motor vent cover assembly device provided in this solution can be referenced. Figure 1 and Figure 2 It includes a base 100, on which a fixed support 200 and a fixed bracket 300 are provided.

[0027] The fixed support 200 is used to fix the wiper motor 800. Specifically, the fixed support 200 includes a base plate 21 bolted to the base 100, and lifting handles 211 are provided on both sides of the base plate 21. The base plate 21 is provided with a U-shaped seat 22 and at least two positioning pins 23. The opening groove of the U-shaped seat 22 fits against the outer wall surface of the motor body of the wiper motor 800, and each positioning pin 23 is provided with a positioning pin that is inserted into the positioning hole of the wiper motor 800. The matching design of the U-shaped seat 22 and the positioning pins 23 ensures double precision positioning of the wiper motor 800 body and the positioning hole, eliminating the risk of motor misalignment during assembly.

[0028] A telescopic cylinder 400 is fixed on the fixed bracket 300. A vacuum adsorption seat 500 for adsorbing the vent cover 700 is fixed on the piston rod 41 of the telescopic cylinder 400. Both the vacuum adsorption seat 500 and the telescopic cylinder 400 are connected to the air passage assembly. The piston rod 41 drives the vacuum adsorption seat 500 to move vertically downward, pressing the vent cover 700 onto the vent 81 of the wiper motor 800. The position of the vent 81 of the wiper motor 800 can be referenced. Figure 7 .

[0029] For the specific structure of the fixed bracket 300, please refer to Figure 1 The fixed support 300 includes a vertical frame 31 and a crossbeam 32 fixed to the top of the vertical frame 31. The telescopic cylinder 400 is vertically fixed to the end of the crossbeam 32. The fixed support 300, consisting of the vertical frame 31 and the crossbeam 32, provides stable support, ensuring that the telescopic cylinder 400 always maintains a vertical movement trajectory and avoiding deviations in the pressing angle.

[0030] For the specific structure of the telescopic cylinder 400, please refer to... Figure 2 Two guide rods 42 are slidably installed inside the telescopic cylinder 400. The two guide rods 42 are symmetrically located on both sides of the piston rod 41. Each guide rod 42 and the piston rod 41 are fixedly connected to the connecting plate 511. The vacuum adsorption seat 500 is fixed on the connecting plate 511 and located directly above the vent 81 of the wiper motor 800. The symmetrically arranged guide rods 42 balance the force on the piston rod 41, prevent the vacuum adsorption seat 500 from tilting during the pressing process, and ensure the straightness and stability of the pressing path.

[0031] For the specific structure of the gas path assembly, please refer to Figure 2 The pneumatic circuit assembly includes a cylinder solenoid directional valve 43 and a vacuum solenoid valve 53.

[0032] The cylinder solenoid directional valve 43 is used to drive the piston rod 41 of the telescopic cylinder 400 to move in opposite directions. The cylinder solenoid directional valve 43 is connected to both the telescopic cylinder 400 and an air source for providing air pressure. A pressure regulating valve 44 is installed on the air source pipeline and is fixed on the fixed bracket 300. The pressure regulating valve 44 can dynamically adjust the air source pressure to adapt to the pressing force requirements of different models of vent caps 700, enhancing the equipment's versatility. The air source can be connected to an air pump or directly to the air pressure pipeline within the plant.

[0033] The vacuum solenoid valve 53 is connected to the vacuum adsorption seat 500 through the vacuum generator 54. The vacuum generator 54 is used to provide negative pressure, and the vacuum solenoid valve 53 is used to switch between negative and positive pressure in the vacuum adsorption seat 500.

[0034] In this embodiment, both the cylinder solenoid directional valve 43 and the vacuum solenoid valve 53 are electrically connected to the controller, which is in turn electrically connected to the button box 600. The cylinder solenoid directional valve 43 is model 4V130E06B, the vacuum solenoid valve 53 is model 3V21008NCA, the vacuum generator 54 is model CV15HSG, the controller is a PLC, and the button box 600 is model HarmonyXB4. Since these are all existing technologies, their specific working principles and connections will not be described in detail.

[0035] For the specific structure of the vacuum adsorption seat 500, please refer to Figures 3-6The vacuum adsorption seat 500 includes a vacuum column 51 and an adsorption column. A vacuum chamber 512, communicating with a vacuum solenoid valve 53, is formed on the end face of the vacuum column 51. One end of the adsorption column is sealed within the vacuum chamber 512, and the other end of the adsorption column has an adsorption groove 521 for adsorbing the vent cover 700. The adsorption groove 521 contains multiple adsorption pores 522 communicating with the vacuum chamber 512. The vacuum chamber 512 provides a stable negative pressure adsorption force. The design of the adsorption groove 521 and the multiple adsorption pores 522 increases the contact area with the vent cover 700, preventing the vent cover 700 from falling off.

[0036] For the specific connection structure between the adsorption column and the vacuum column 51, please refer to Figure 4 , Figure 5 and Figure 6 Two sealing rings are provided at the connection end between the adsorption column and the vacuum column 51. A positioning groove for a fixing knob 513 is located on the outer wall of the adsorption column between the two sealing rings. The fixing knob 513 is threadedly connected to the outer wall of the vacuum column 51, with one end passing through the outer wall of the vacuum column 51 and inserted into the positioning groove. The double sealing rings and the positioning groove work together to secure the knob 513, ensuring an airtight connection between the adsorption column and the vacuum column 51 and preventing vacuum leakage. The threaded knob connection simplifies the adsorption column assembly and disassembly process, facilitating quick replacement or cleaning.

[0037] In summary, the beneficial effects of this solution are as follows:

[0038] The telescopic cylinder 400 drives the vacuum adsorption seat 500, thereby pressing the vent cover 700 onto the vent 81 of the wiper motor 800, achieving an automated pressing process. The cooperation between the telescopic cylinder 400 and the air circuit components ensures the consistency of the direction and magnitude of the pressing force, guaranteeing the consistency of the assembly depth for each product. This significantly improves the sealing performance qualification rate of the wiper motor 800, fundamentally solving the problem of inconsistent interference fit between the vent cover 700 and the motor housing caused by uneven operating force during manual assembly. At the same time, the vacuum adsorption seat 500 achieves automatic adsorption and precise positioning of the vent cover 700, avoiding the skewing that may occur during manual installation of the vent cover 700, ensuring the verticality of the pressing path, and reducing the coaxiality error between the vent cover 700 and the vent 81.

[0039] Although the specific embodiments of the utility model have been described in detail with reference to the accompanying drawings, this should not be construed as limiting the scope of protection of this patent. Various modifications and variations that can be made by those skilled in the art without inventive effort within the scope described in the claims still fall within the scope of protection of this patent.

Claims

1. A wiper motor vent cover assembly device, characterized in that, The system includes a base (100), on which a fixed support (200) and a fixed bracket (300) for fixing a wiper motor (800) are provided. A telescopic cylinder (400) is fixed on the fixed bracket (300). A vacuum adsorption seat (500) for adsorbing a vent cover (700) is fixed on the piston rod (41) of the telescopic cylinder (400). Both the vacuum adsorption seat (500) and the telescopic cylinder (400) are connected to the air passage assembly. The piston rod (41) drives the vacuum adsorption seat (500) to move vertically downward to press the vent cover (700) onto the vent (81) of the wiper motor (800).

2. The wiper motor vent cover assembly device according to claim 1, characterized in that, The fixed support (200) includes a base plate (21) bolted to the base (100). The base plate (21) is provided with a U-shaped seat (22) and at least two positioning pins (23). The opening groove of the U-shaped seat (22) fits against the outer wall of the motor body of the wiper motor (800). Each positioning pin (23) is provided with a positioning pin that is inserted into the positioning hole of the wiper motor (800).

3. The wiper motor vent cover assembly device according to claim 2, characterized in that, Both sides of the base plate (21) are provided with lifting handles (211).

4. The wiper motor vent cover assembly device according to claim 1, characterized in that, The fixed bracket (300) includes a stand (31) and a crossbeam (32) fixed to the top of the stand (31); the telescopic cylinder (400) is vertically fixed to the end of the crossbeam (32).

5. The wiper motor vent cover assembly device according to claim 1, characterized in that, Two guide rods (42) are slidably arranged inside the telescopic cylinder (400). The two guide rods (42) are symmetrically located on both sides of the piston rod (41). Each guide rod (42) and the piston rod (41) are fixedly connected to the connecting plate (511). The vacuum adsorption seat (500) is fixed on the connecting plate (511) and located directly above the vent (81) of the wiper motor (800).

6. The wiper motor vent cover assembly device according to claim 1, characterized in that, The pneumatic circuit assembly includes a cylinder solenoid valve (43) and a vacuum solenoid valve (53) that are respectively connected to the telescopic cylinder (400) and the vacuum adsorption seat (500); the pressure ports of the cylinder solenoid valve (43) and the vacuum solenoid valve (53) are respectively connected to the air source and the vacuum generator (54), and both the cylinder solenoid valve (43) and the vacuum solenoid valve (53) are electrically connected to the controller.

7. The wiper motor vent cover assembly device according to claim 6, characterized in that, The controller is electrically connected to the button box (600).

8. The wiper motor vent cover assembly device according to claim 6, characterized in that, A pressure regulating valve (44) is installed on the pipeline of the gas source, and the pressure regulating valve (44) is fixed on the fixed bracket (300).

9. The wiper motor vent cover assembly device according to claim 6, characterized in that, The vacuum adsorption seat (500) includes a vacuum column (51) and an adsorption column (52). A vacuum chamber (512) communicating with the vacuum solenoid valve (53) is provided on the end face of the vacuum column (51). One end of the adsorption column (52) is sealed and connected to the vacuum chamber (512). An adsorption groove (521) for adsorbing the vent cover (700) is provided on the other end of the adsorption column (52). A plurality of adsorption pores (522) communicating with the vacuum chamber (512) are provided in the adsorption groove (521).

10. The wiper motor vent cover assembly device according to claim 9, characterized in that, Two sealing rings are provided at the connection end of the adsorption column (52) and the vacuum column (51). A positioning groove for cooperating with the fixing knob (513) is provided on the outer wall of the adsorption column (52) between the two sealing rings. The fixing knob (513) is threadedly connected to the outer wall of the vacuum column (51). One end of the fixing knob (513) passes through the outer wall of the vacuum column (51) and is inserted into the positioning groove.

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