A vehicle door sealing strip punching device and working method

Abstract

The present application relates to a kind of car door sealing strip punching equipment and working method, the car door sealing strip punching equipment includes welded frame, punching unit;Punching unit is connected with welded frame;Punching unit includes pneumatic spindle, drill bit, slide rail slider, universal support, cylinder, spring;Punching unit is connected with welded frame;Punching unit further includes mounting plate, floating plate;Mounting plate is connected with welded frame;Mounting plate is connected with floating plate by slide rail slider;The both ends of spring are connected with mounting plate, floating plate respectively;Universal support is arranged on floating plate, for supporting door;Cylinder is fixed on floating plate;Cylinder is slidably connected with connecting block;Pneumatic spindle is horizontally installed on connecting block;Pneumatic spindle is connected with drill bit.Compared with prior art, the equipment of the present application can realize the automatic punching process of most door sealing strip on the market, with the characteristics of compact mechanism, self-adapting hole finding, stable and reliable punching quality, high production efficiency.

Description

Technical Field

[0001] This invention relates to the field of automotive parts processing technology, and in particular to a punching device for car door sealing strips. Background Technology

[0002] To improve vehicle performance, reduce noise and vibration, and enhance sound insulation and vibration reduction, sealing strips are installed between the vehicle body and doors.

[0003] Punching holes in the door seal strip is a process that follows immediately after the door seal strip is bonded. It involves drilling 3-4 drainage holes in the bottom edge of the seal strip near the door sill. When it rains, rainwater flows from the top of the door along the seal strip to the bottom of the door and then out through these small holes. If the punching quality is poor, the holes can easily become clogged, causing water to accumulate in the door.

[0004] Traditional sealing strip punching is done manually, which is inefficient and prone to quality defects such as inconsistent punching positions, irregular hole edges, incomplete punching, and debris residue.

[0005] CN212887958U discloses a punching device for automotive sealing strips, including a punching base and a punching table. The punching base has a cylinder at its top and a punch at its bottom, with the punch's connecting end fixed to the punching base. Guide posts, guide sleeves, and cutters are provided on both sides of the punch's body, with the cutters connected to the guide posts and guide sleeves. A punching plate is provided on the punching table, and the punching plate is fixed to the punching table with screws. A fixing mold is provided on the punching plate, and the fixing mold is fixed to the punching plate with screws. However, the automotive sealing strip punching device of CN212887958U fixes the sealing strip using a fixing mold. Due to the potential structural differences between different sealing strips, deviations in the fixing position can easily occur, leading to problems such as inconsistent punching positions. This results in low automation, low efficiency, and unstable punching quality.

[0006] Therefore, there is an urgent need in the market for a high-efficiency, automated sealing strip punching equipment with stable and reliable punching quality. Summary of the Invention

[0007] The purpose of this invention is to overcome the defects of the prior art by providing a door sealing strip punching device and working method. By setting a punching unit, it can realize the automated punching process for most 3M door sealing strips on the market. It has the characteristics of compact structure, self-adaptive hole finding, stable and reliable punching quality, and high production efficiency.

[0008] The objective of this invention can be achieved through the following invention:

[0009] The first objective of this invention is to provide a door sealing strip punching device, comprising a welding frame and a punching unit; the punching unit is connected to the welding frame; the punching unit includes a pneumatic spindle, a drill bit, a slide rail slider, a universal support, a cylinder, and a spring; the punching unit is connected to the welding frame; the punching unit also includes a mounting plate and a floating plate; the mounting plate is connected to the welding frame; the mounting plate and the floating plate are connected via a slide rail slider; both ends of the spring are respectively connected to the mounting plate and the floating plate; the universal support is disposed on the floating plate for supporting the door; the cylinder is fixed to the floating plate; a connecting block is slidably connected to the cylinder; the pneumatic spindle is horizontally mounted on the connecting block; the pneumatic spindle is connected to the drill bit.

[0010] Furthermore, the door sealing strip punching equipment also includes a debris collection container; the debris collection container is located below the punching unit and is used to collect the debris generated during punching.

[0011] Furthermore, the door sealing strip punching equipment also includes a quality inspection system; the quality inspection system is mounted on the welding frame and is used to complete the identification, measurement, and positioning functions; the quality inspection system includes an industrial camera, and the quality inspection system is correspondingly set with the punching unit.

[0012] Furthermore, the punching unit also includes a limit detection component; the limit detection component includes a cylinder position detection switch, a low position detection switch, and a high position detection switch; the cylinder position detection switch is disposed on the floating plate and is used to detect the cylinder position; the low position detection switch is disposed on the mounting plate and is used to limit the low position of the floating plate; the high position detection switch is disposed on the floating plate and is used to limit the high position of the floating plate.

[0013] Furthermore, the punching unit also includes a stop bolt; the stop bolt is located below the floating plate and is used to limit the descent distance of the floating plate.

[0014] Furthermore, the door sealing strip punching equipment also includes a valve island and an I / O module; the valve island and I / O module are mounted on a welding frame.

[0015] Furthermore, the drill bit is a three-pointed flower drill bit; the cylinder is a slide cylinder.

[0016] Furthermore, the valve island and IO module include a solenoid valve assembly and an IO module; both the solenoid valve assembly and the IO module are fixed on the welded frame; the cylinder is connected to an external air source through the solenoid valve assembly; the solenoid valve assembly is communicatively connected to the IO module.

[0017] Furthermore, the communication connection includes a wired or wireless connection.

[0018] The second objective of this invention is to provide a method for operating a door sealing strip punching device, the method comprising the following steps:

[0019] S1. Mount the car door on the universal support and adaptively locate the punching position;

[0020] S2. The height of the floating plate is fixed, and the height of the cylinder is fixed.

[0021] S3. The pneumatic spindle starts and rotates;

[0022] S4. The piston of the cylinder extends, and the connecting block on the cylinder moves horizontally to begin punching.

[0023] S5. After punching is completed, the piston of the cylinder retracts, and the connecting block on the cylinder retracts.

[0024] Furthermore, in step S3, the pneumatic spindle speed is 30,000 rpm.

[0025] Furthermore, the door sealing strip punching equipment also includes a quality inspection system, and the working method further includes the following steps after step S5:

[0026] S6. The door is lifted and moved to the quality inspection system to check the punching quality.

[0027] Furthermore, the adaptive process of finding the punching position is as follows: the robot picks up the car door and places it on the punching unit according to the set trajectory, applies a slight pressure and then remains stationary, and finds the hole by means of the universal support and spring buffer on the punching unit to adapt to the curved edge of the car door.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] 1) The door sealing strip punching equipment provided by the present invention has a compact structure and can freely arrange punching units according to the number of punches. It can punch multiple holes at the same time, which greatly improves the punching efficiency. By setting punching units, it can realize the automated punching process for most 3M door sealing strips on the market. It has the characteristics of compact structure, stable and reliable punching quality, and high production efficiency.

[0030] 2) The door sealing strip punching equipment provided by the present invention can adaptively find holes according to the shape of the door, and the punching quality is stable and reliable with high production efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the door sealing strip punching device in an embodiment of the present invention.

[0032] Figure 2 This is a left-side view of the punching unit of the door sealing strip punching device in an embodiment of the present invention.

[0033] Figure 3 This is a right-side view of the punching unit of the door sealing strip punching device in an embodiment of the present invention.

[0034] Figure 4 This is a schematic diagram of the overall structure of the punching unit of the door sealing strip punching device in an embodiment of the present invention.

[0035] The numbers in the diagram are as follows:

[0036] 1. Punching unit; 2. Welding frame; 3. Debris collection container; 4. Quality inspection system; 5. Valve island and I / O module.

[0037] 1-1. Pneumatic spindle; 1-2. Drill bit; 1-3. Cylinder position detection switch; 1-4. Universal support; 1-5. Floating plate; 1-6. Spring; 1-7. Slide rail slider; 1-8. Low position detection switch; 1-9. Connecting block; 1-10. Universal support; 1-11. High position detection switch; 1-12. Cylinder; 1-13. Stop bolt. Detailed Implementation

[0038] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. Component models, material names, connection structures, and other features not explicitly described in this invention are considered common technical features disclosed in the prior art.

[0039] This invention provides a door sealing strip punching device. During operation: a robot grasps the door and moves it to the punching device; the door presses down on the universal support, adaptively finding the punching position; the cylinder height is fixed; the pneumatic spindle starts, rotating at 30,000 rpm; the slide cylinder extends, and punching begins; punching debris falls into a debris collection container; after punching is completed, the slide cylinder retracts; the door is lifted and moved to an industrial camera to inspect the punching quality.

[0040] Example

[0041] like Figures 1-4 As shown, this embodiment provides a door sealing strip punching device, which includes a welding frame 2, a punching unit 1, a debris collection container 3, a quality inspection system 4, a valve island, and an I / O module 5. The punching unit 1 is connected to the welding frame 2. The debris collection container 3 is located below the punching unit 1 and is used to collect the debris generated during punching. The quality inspection system 4 is located on the welding frame 2 and is used to perform identification, measurement, and positioning functions. The quality inspection system includes an industrial camera, and the quality inspection system is correspondingly set with the punching unit 1. The valve island and I / O module 5 are located on the welding frame 2.

[0042] The punching unit 1 includes a pneumatic spindle 1-1, a drill bit 1-2, a slide rail slider 1-7, a universal support 1-4, a cylinder 1-11, a spring 1-6, a mounting plate 1-12, a floating plate 1-5, and a stop bolt 1-13.

[0043] Mounting plate 1-12 is connected to welding frame 2 (by fixing corner brackets on welding frame 2, mounting plate 1-12 and corner brackets are connected by bolts); mounting plate 1-12 and floating plate 1-5 are connected by slide rail slider 1-7; both ends of spring 1-6 are connected to mounting plate 1-12 and floating plate 1-5 respectively; universal support 1-4 is provided on floating plate 1-5 for supporting the door; cylinder 1-11 is fixed on floating plate 1-5; connecting block 1-9 is slidably connected to cylinder 1-11; pneumatic spindle 1-1 is horizontally installed on connecting block 1-9; pneumatic spindle 1-1 is connected to drill bit 1-2; stop bolt 1-13 is provided below floating plate 1-5 for limiting the descent distance of floating plate 1-5.

[0044] The punching unit 1 also includes a limit detection assembly; the limit detection assembly includes a cylinder position detection switch 1-3, a low position detection switch 1-8, and a high position detection switch 1-10; the cylinder position detection switch 1-3 is located on the floating plate 1-5 and is used to detect the position of the cylinder 1-11; the low position detection switch 1-8 is located on the mounting plate 1-12 and is used to limit the low position of the floating plate 1-5; the high position detection switch 1-10 is located on the floating plate 1-5 and is used to limit the high position of the floating plate 1-5. The cylinder position detection switch 1-3, the low position detection switch 1-8, and the high position detection switch 1-10 are all position detection switches, and are all commonly used or purchased components. Those skilled in the art are capable of selecting the appropriate specifications, models, and parameters according to actual needs, and will not be elaborated further here.

[0045] Drill bits 1-2 are three-pointed flower drill bits; cylinders 1-11 are slide cylinders.

[0046] The valve island and I / O module 5 include a solenoid valve assembly and an I / O module; both the solenoid valve assembly and the I / O module are fixed to the welded frame 2; cylinders 1-11 are connected to an external air source through the solenoid valve assembly; the solenoid valve assembly and the I / O module are communicatively connected. The communication connection can be wired or wireless. The I / O module is an input / output module. The solenoid valve assembly and I / O module, among other components, are used for automated control. The specific connection methods and working principles are existing technologies and will not be elaborated here.

[0047] The working method of the above-mentioned door sealing strip punching equipment includes the following steps:

[0048] S1. Mount the car door on the universal support 1-4 and automatically locate the punching position.

[0049] S2, the height of floating plates 1-5 is fixed, and the height of cylinders 1-11 is fixed;

[0050] S3. The pneumatic spindle 1-1 starts and rotates at a speed of 30,000 rpm;

[0051] S4. The piston of cylinder 1-11 extends, the connecting block 1-9 on cylinder 1-11 moves horizontally, the drill bit 1-2 moves horizontally, and the punching begins;

[0052] S5. After punching is completed, the piston of cylinder 1-11 retracts, which drives the connecting block 1-9 on cylinder 1-11 to retract, and the pneumatic spindle 1-1 stops rotating.

[0053] S6. The door is lifted and moved to the quality inspection system 4 to check the punching quality.

[0054] The adaptive process of finding the punching position is as follows: The robot picks up the car door and places it on the punching unit according to the set trajectory. It presses down slightly and then stays still. The universal support 1-4 and spring 1-6 on the punching unit buffer the adaptive curved edge of the car door to find the hole.

[0055] During the punching process, punching debris falls into the debris collection container 3.

[0056] The number of punching units 1 can be freely arranged according to the number of punches, so that multiple holes can be punched at the same time.

[0057] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A vehicle door weatherstrip punching apparatus characterized by, The vehicle door sealing strip punching equipment comprises a welded frame (2) and a punching unit (1); The punching unit (1) is connected with the welded frame (2); The punching unit (1) comprises a pneumatic main shaft (1-1), a drill bit (1-2), a sliding rail sliding block (1-7), a universal support (1-4), a pneumatic cylinder (1-11) and a spring (1-6); The punching unit (1) further comprises a mounting plate (1-12) and a floating plate (1-5); The mounting plate (1-12) is connected with the welded frame (2); The mounting plate (1-12) is connected with the floating plate (1-5) through the sliding rail sliding block (1-7); Two ends of the spring (1-6) are respectively connected with the mounting plate (1-12) and the floating plate (1-5); The universal support (1-4) is arranged on the floating plate (1-5) and used for supporting the vehicle door; The pneumatic cylinder (1-11) is fixed on the floating plate (1-5); and a connecting block (1-9) is slidably connected to the pneumatic cylinder (1-11); The pneumatic main shaft (1-1) is horizontally arranged on the connecting block (1-9); The pneumatic main shaft (1-1) is connected with the drill bit (1-2).

2. The vehicle door weatherstrip punching apparatus of claim 1, wherein The vehicle door sealing strip punching equipment further comprises a debris container (3); The debris container (3) is arranged below the punching unit (1) and used for collecting the debris generated by punching.

3. The apparatus of claim 1, wherein, The vehicle door sealing strip punching equipment further comprises a quality detection system (4); The quality detection system (4) is arranged on the welded frame (2) and used for completing the identification, measurement and positioning functions.

4. The apparatus of claim 1, wherein, The punching unit (1) further comprises a limit detection assembly; The limit detection assembly comprises a cylinder-to-position detection switch (1-3), a low-position detection switch (1-8) and a high-position detection switch (1-10); The cylinder-to-position detection switch (1-3) is arranged on the floating plate (1-5) and used for detecting the cylinder-to-position condition of the pneumatic cylinder (1-11); The low-position detection switch (1-8) is arranged on the mounting plate (1-12) and used for limiting the low position of the floating plate (1-5); The high-position detection switch (1-10) is arranged on the floating plate (1-5) and used for limiting the high position of the floating plate (1-5).

5. The apparatus of claim 4, wherein, The punching unit (1) further comprises a stop bolt (1-13); The stop bolt (1-13) is arranged below the floating plate (1-5) and used for limiting the descending distance of the floating plate (1-5).

6. The apparatus of claim 1, wherein, The vehicle door sealing strip punching equipment further comprises a valve island and an IO module (5); The valve island and the IO module (5) are arranged on the welded frame (2).

7. The apparatus of claim 1, wherein, The drill bit (1-2) is a three-sharp-flower drill bit; The pneumatic cylinder (1-11) is a sliding table pneumatic cylinder.

8. A method of operating a punch device for a vehicle door weatherstrip as claimed in any one of claims 1 to 7, characterised in that, The working method comprises the following steps: S1, arranging the vehicle door on the universal support (1-4); S2, fixing the height of the floating plate (1-5) and the height of the pneumatic cylinder (1-11); S3, starting and rotating the pneumatic main shaft (1-1); S4, extending the piston of the pneumatic cylinder (1-11), moving the connecting block (1-9) on the pneumatic cylinder (1-11) horizontally, and starting punching; S5, after the punching is completed, retracting the piston of the pneumatic cylinder (1-11) and retracting the connecting block (1-9) on the pneumatic cylinder (1-11).

9. The working method of the apparatus for punching a door sealing strip according to claim 8, characterized in that, In step S3, the rotational speed of the pneumatic spindle (1-1) is 30000 rpm.

10. The method of operating a vehicle door weatherstrip punching apparatus according to claim 8, wherein, The vehicle door sealing strip punching equipment further comprises a quality detection system (4), and the working method further comprises the following steps after step S5: S6, the vehicle door is lifted and moved to the quality detection system (4), and the punching quality is detected.

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