Automatic feeding and nail pressing device applied to automobile energy absorption box production line

Abstract

The utility model relates to an automatic feeding and screw pressing device applied to an automobile energy absorption box production line. The automatic feeding and screw pressing device comprises an energy absorption box feeding system, a screw feeding system and a press fitting system. The feeding and discharging operation is simple and convenient, the complexity of manual feeding is reduced, a worker only needs to supplement screws in an energy absorption box and a vibration disc of the conveying belt on time, other steps do not need manual intervention, and the production efficiency is improved; the feeding positions of the energy absorption boxes and the screws are high in precision and good in stability, the centering stability of feeding of the screws and bottom holes of the energy absorption boxes can be guaranteed, and compared with previous manual operation, the product percent of pass is increased, and losses in the production process are reduced; automation of the energy absorption box assembly production process is achieved, the production period is shortened, the production efficiency is improved, and the labor cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of automotive energy-absorbing box assembly production, and in particular to an automatic feeding and pressing device applied to an automotive energy-absorbing box production line. Background Technology

[0002] The manufacturing process of automotive energy-absorbing boxes involves assembling screws onto the boxes using a press-fit method. During this process, the loading of the energy-absorbing boxes and screws is crucial. Misalignment of the energy-absorbing box with the press-fit hole, improper placement of the screws, or misalignment within the hole can lead to issues such as insufficient screw tightening torque and inadequate ejection force, severely impacting assembly quality.

[0003] For energy-absorbing box parts, the energy-absorbing collapse zone has a large cavity depth and three pre-drilled riveting holes. The number of riveting holes to be installed is unlimited, and one or more can be used. The screws are relatively long, making material loading inconvenient. The original production process used manual material loading and positioning, which resulted in a long production time, low production efficiency, and high labor costs. Utility Model Content

[0004] This invention aims to address the shortcomings of existing technologies by providing an automatic feeding and nailing device for use in automotive energy-absorbing box production lines.

[0005] To achieve the above objectives, this utility model adopts the following technical solution:

[0006] An automatic feeding and pressing device for automotive energy-absorbing box production lines includes an energy-absorbing box feeding system, a screw feeding system, and a pressing system.

[0007] The energy-absorbing box feeding system includes an energy-absorbing box feeding conveyor, which is connected to a servo motor. The end of the energy-absorbing box feeding conveyor is equipped with an energy-absorbing box outer contour positioning block and a positioning cylinder is provided on one side of the energy-absorbing box outer contour positioning block. A feeding pneumatic gripper is provided above the energy-absorbing box outer contour positioning block.

[0008] The screw feeding system includes a screw vibratory feeder. A linear conveying channel is provided at the lower end of the screw vibratory feeder's outlet. A screw lifting cylinder is provided below the end of the linear conveying channel. A lifting cylinder is provided on one side of the end of the linear conveying channel. A rotary cylinder is installed on the top of the piston rod of the lifting cylinder. A horizontal plate is installed on the rotary cylinder. A screw gripper is installed at the bottom of the horizontal plate.

[0009] The press-fitting system includes a parallel X-axis lead screw and an X-axis guide rail. The X-axis lead screw is connected to an X-axis adjustment servo motor. An adjustment platform is threaded onto the X-axis lead screw and slidably mounted on the X-axis guide rail. Two Y-axis guide rails are provided on the adjustment platform, and a riveting platform is slidably mounted on the two Y-axis guide rails. A Y-axis adjustment cylinder is connected to the bottom of the riveting platform. A riveting die fixing seat is provided on the riveting platform, and a riveting die is installed on the riveting die fixing seat. A press-fitting machine is provided above the riveting die, and a riveting punch is connected to the lower part of the press-fitting machine.

[0010] A positioning pin lifting cylinder is provided below the riveting die fixing seat. A positioning pin is connected to the top of the positioning pin lifting cylinder, and a through hole is provided on the riveting die fixing seat corresponding to the positioning pin.

[0011] A detection switch is installed on one side of the energy-absorbing box feeding conveyor.

[0012] The beneficial effects of this utility model are: the loading and unloading operation of this utility model is simple and convenient, reducing the tediousness of manual loading and improving production efficiency; the loading position accuracy of the energy-absorbing box and screws is high and the stability is good, which improves the product qualification rate and reduces the loss in the production process; the production process of the energy-absorbing box assembly is automated, shortening the production cycle, improving production efficiency and reducing labor costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of a screw gripper picking up a screw.

[0015] Figure 3 This is a schematic diagram of a press-fit punch pressing a screw.

[0016] In the diagram: 1-Energy-absorbing box feeding conveyor; 2-Servo motor; 3-Energy-absorbing box outer contour positioning block; 4-Positioning cylinder; 5-Feeding pneumatic gripper; 6-Screw vibratory feeder; 7-Linear conveyor channel; 8-Screw lifting cylinder; 9-Lifting cylinder; 10-Rotating cylinder; 11-Horizontal plate; 12-Pin gripper; 13-X-direction screw; 14-X-direction guide rail; 15-X-direction adjusting servo motor; 16-Adjusting platform; 17-Y-direction guide rail; 18-Riveting platform; 19-Y-direction adjusting cylinder; 20-Riveting die fixing seat; 21-Riveting die; 22-Pressure fitting machine; 23-Riveting punch; 24-Positioning pin lifting cylinder; 25-Positioning pin; 26-Detection switch; 27-First slide; 28-Moving seat; 29-Second slide;

[0017] The following will describe in detail the embodiments of this utility model with reference to the accompanying drawings. Detailed Implementation

[0018] The principles and features of this utility model are described below with reference to the accompanying drawings. The embodiments described are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0019] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0022] like Figures 1 to 3 As shown, an automatic feeding and pressing device for an automotive energy-absorbing box production line includes an energy-absorbing box feeding system, a screw feeding system, and a pressing system.

[0023] The energy-absorbing box feeding system includes an energy-absorbing box feeding conveyor 1, a servo motor 2, an energy-absorbing box outer contour positioning block 3, a positioning cylinder 4, a feeding pneumatic gripper 5, and a detection switch 26; specifically:

[0024] The energy-absorbing box feeding conveyor 1 is connected to a servo motor 2. The end of the energy-absorbing box feeding conveyor 1 is provided with an energy-absorbing box outer contour positioning block 3 and a positioning cylinder 4 is provided on one side of the energy-absorbing box outer contour positioning block 3. A feeding pneumatic gripper 5 is provided above the energy-absorbing box outer contour positioning block 3.

[0025] For the pneumatic gripper 5, any standard product on the market can be used, such as the Schunk PZN-plus series 0303642 pneumatic gripper from Shanghai Ouqin Electromechanical Engineering Technology Co., Ltd.

[0026] A detection switch 26 is installed on one side of the energy-absorbing box feeding conveyor 1. The detection switch 26 can be a conventional product on the market, such as the SES23F101 model product from Dongguan Sanying Electronic Technology Co., Ltd.

[0027] The screw feeding system includes a screw vibratory feeder 6, a linear conveyor 7, a screw lifting cylinder 8, a lifting cylinder 9, a rotary cylinder 10, a horizontal plate 11, and screw grippers 12; specifically:

[0028] The screw vibratory feeder 6 has a linear conveying channel 7 at the lower end of its discharge port. A screw lifting cylinder 8 is located below the end of the linear conveying channel 7. A lifting cylinder 9 is located on one side of the end of the linear conveying channel 7. A rotary cylinder 10 is installed on the top of the piston rod of the lifting cylinder 9. A horizontal plate 11 is installed on the rotary cylinder 10. A nail gripper 12 is installed at the bottom of the horizontal plate 11.

[0029] The nail gripper 12 can be a standard product available on the market, such as the MHZL2-16D-Y59A from Shanghai Tuheng Automation Equipment Co., Ltd.

[0030] The press-fitting system includes an X-axis lead screw 13, an X-axis guide rail 14, an X-axis adjusting servo motor 15, an adjusting platform 16, a Y-axis guide rail 17, a press-fitting platform 18, a Y-axis adjusting cylinder 19, a press-fitting die fixing seat 20, a press-fitting die 21, a press-fitting machine 22, a press-fitting punch 23, a positioning pin lifting cylinder 24, a positioning pin 25, a first slide 27, a movable seat 28, and a second slide 29; specifically:

[0031] X-axis lead screw 13 and X-axis guide rail 14 are arranged in parallel. X-axis lead screw 13 is connected to X-axis adjustment servo motor 15. Adjustment platform 16 is threaded on X-axis lead screw 13. Adjustment platform 16 is slidably mounted on X-axis guide rail 14. Two Y-axis guide rails 17 are provided on adjustment platform 16. Riveting platform 18 is slidably mounted on the two Y-axis guide rails 17. Y-axis adjustment cylinder 19 is connected to the bottom of riveting platform 18. Riveting die fixing seat 20 is provided on riveting platform 18. Riveting die 21 is installed on riveting die fixing seat 20. Pressing machine 22 is provided above riveting die 21. Riveting punch 23 is connected to the lower part of pressing machine 22.

[0032] A positioning pin lifting cylinder 24 is provided below the riveting die fixing seat 20. A positioning pin 25 is connected to the top of the positioning pin lifting cylinder 24. A through hole is provided on the riveting die fixing seat 20 corresponding to the positioning pin 25.

[0033] The adjustment platform 16 has a first slide 27 at the bottom and the first slide 27 is slidably mounted on the X guide rail 14.

[0034] The bottom of the adjustment platform 16 is provided with a movable seat 28, which is threaded onto the X-direction lead screw 13.

[0035] The bottom of the riveting platform 18 is provided with a second slide 29 corresponding to the Y guide rail 17, and the second slide 29 is slidably mounted on the Y guide rail 17.

[0036] The working process of this utility model is as follows:

[0037] The conveyor belt of the energy-absorbing box feeding conveyor 1 is equipped with equally spaced ribs, and energy-absorbing box parts are stacked between the ribs. The servo motor 2 starts, and the conveyor belt advances one rib spacing at a time, allowing the stacked energy-absorbing boxes to enter the production line sequentially. During the conveying process, the detection switch 26 identifies whether the energy-absorbing box is correctly positioned. After a single step by the servo motor 2, the positioning cylinder 4 operates, pushing the energy-absorbing box to the positioning block 3 that conforms to the outer contour of the energy-absorbing box, completing the initial positioning. The pneumatic gripper 5 above the energy-absorbing box starts working, grabbing the energy-absorbing box and moving it to the riveting die 21 mounted on the riveting platform 18. The riveting die 21 is equipped with three top pins corresponding to the bottom hole positions of the energy-absorbing box. Each top pin protrudes from the bottom hole of the riveting die 21. As the energy-absorbing box falls, each top pin inserts into the riveting bottom hole of the energy-absorbing box, and the positioning pin lifting cylinder 24 rises, driving the positioning pin 25 to rise and complete the positioning.

[0038] Screws are replenished in the screw vibratory feeder 6. The screws vibrate sequentially from the screw vibratory feeder 6 to the linear conveyor 7, queuing to enter the production line. The screws can be moved manually by moving them, or by using a related moving or pushing mechanism. After the screw reaches the end of the linear conveyor 7, the screw lifting cylinder 8 raises the screw to the gripping position, and the gripping claw 12 operates to grip the screw. The gripping claw 12 ensures the screw gripping is centered and stable. The rotating cylinder 10 operates, rotating 180° to rotate the gripping claw 12 and the screw directly above the energy-absorbing box. After reaching the position, the positioning pin lifting cylinder 24 lowers, lowering the positioning pin 25 to expose the bottom hole of the energy-absorbing box and the bottom hole of the die for riveting. The lifting cylinder 9 lowers, lowering the gripping claw 12 and the screw into the bottom hole of the energy-absorbing box and the riveting bottom hole. The gripping claw 12 releases, completing the screw feeding. Subsequently, the lifting cylinder 9 rises, the rotating cylinder 10 rotates 180° in the opposite direction, and the nail-grabbing claw 12 returns to the gripping position, awaiting the next gripping of the screw at the end of the linear conveyor channel 7. This completes the feeding of the energy-absorbing box and the screws.

[0039] After the energy-absorbing box and screws are loaded, the press-fitting machine 22 pushes the riveting punch 23 down to apply pressure to the top of the screws, so that the screws and the bottom hole of the energy-absorbing box are pressed and fitted together, thus completing the press-fitting assembly of the energy-absorbing box and screws.

[0040] The X and Y dual-axis adjustment system configured on the riveting platform 18 starts to work. The X-axis is driven by the X-axis adjustment servo motor 15, and the Y-axis is pushed by the Y-axis adjustment cylinder 19 to switch. The combined motion can complete the switching of the three screw positions in sequence.

[0041] This utility model features simple and convenient loading and unloading operations, reducing the tediousness of manual loading. Workers only need to replenish the energy-absorbing boxes on the conveyor belt and the screws in the vibrating plate on time; the remaining steps do not require manual intervention, thus improving production efficiency. The loading position of the energy-absorbing boxes and screws has high accuracy and good stability, ensuring the alignment stability between the screws and the bottom hole of the energy-absorbing box. Compared with previous manual operations, this improves the product qualification rate and reduces losses during the production process. It also automates the production process of the energy-absorbing box assembly, shortens the production cycle, improves production efficiency, and reduces labor costs.

[0042] Alternative Solution 1: Energy-absorbing box feeding can be replaced with other feeding methods, such as synchronous belt feeding, lifting machine feeding, robot picking box sorting feeding, etc. The appropriate solution can be selected according to the process requirements of the production line. Compared with the current conveyor belt feeding solution, it can further improve the feeding efficiency and reduce the cumbersome operation of personnel.

[0043] Alternative Solution 2: The screw feeding method can be replaced by a custom-made long air pipe from the end of the vibratory feeder to blow the screws into the riveting punch. High-pressure gas is used to blow the screws directly to the bottom of the riveting punch, and the screws descend together with the riveting punch. The screw feeding and pressing are carried out simultaneously.

[0044] The present invention has been described above with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any improvements made using the inventive concept and technical solution of the present invention, or direct application to other situations without modification, are all within the protection scope of the present invention.

Claims

1. An automatic feeding and nailing device for use in an automotive energy-absorbing box production line, characterized in that, This includes an energy-absorbing box feeding system, a screw feeding system, and a pressing system; The energy-absorbing box feeding system includes an energy-absorbing box feeding conveyor (1), which is connected to a servo motor (2). The end of the energy-absorbing box feeding conveyor (1) is provided with an energy-absorbing box outer contour positioning block (3) and a positioning cylinder (4) is provided on one side of the energy-absorbing box outer contour positioning block (3). A feeding pneumatic gripper (5) is provided above the energy-absorbing box outer contour positioning block (3). The screw feeding system includes a screw vibratory feeder (6), a linear conveying channel (7) is provided at the lower end of the discharge port of the screw vibratory feeder (6), a screw lifting cylinder (8) is provided below the end of the linear conveying channel (7), a lifting cylinder (9) is provided on one side of the end of the linear conveying channel (7), a rotary cylinder (10) is installed on the top of the piston rod of the lifting cylinder (9), a horizontal plate (11) is installed on the rotary cylinder (10), and a nail gripper (12) is installed at the bottom of the horizontal plate (11). The pressing system includes a parallel X-axis lead screw (13) and an X-axis guide rail (14). The X-axis lead screw (13) is connected to an X-axis adjustment servo motor (15). An adjustment platform (16) is threaded onto the X-axis lead screw (13). The adjustment platform (16) is slidably mounted on the X-axis guide rail (14). The adjustment platform (16) is provided with two Y-axis guide rails (17). A riveting platform (18) is slidably mounted on the two Y-axis guide rails (17). A Y-axis adjustment cylinder (19) is connected to the bottom of the riveting platform (18). A riveting die fixing seat (20) is provided on the riveting platform (18). A riveting die (21) is installed on the riveting die fixing seat (20). A pressing machine (22) is provided above the riveting die (21). A riveting punch (23) is connected to the lower part of the pressing machine (22).

2. The automatic feeding and pressing device for an automotive energy-absorbing box production line according to claim 1, characterized in that, A positioning pin lifting cylinder (24) is provided below the riveting die fixing seat (20). A positioning pin (25) is connected to the top of the positioning pin lifting cylinder (24). A through hole is provided on the riveting die fixing seat (20) corresponding to the positioning pin (25).

3. The automatic feeding and pressing device for an automotive energy-absorbing box production line according to claim 2, characterized in that, A detection switch (26) is installed on one side of the energy-absorbing box feeding conveyor (1).

4. The automatic feeding and pressing device for an automotive energy-absorbing box production line according to claim 3, characterized in that, The adjustment platform (16) has a first slide (27) at the bottom and the first slide (27) is slidably mounted on the X guide rail (14).

5. An automatic feeding and pressing device for an automotive energy-absorbing box production line according to claim 4, characterized in that, The bottom of the adjustment platform (16) is provided with a movable seat (28), which is threaded onto the X-direction lead screw (13).

6. The automatic feeding and pressing device for an automotive energy-absorbing box production line according to claim 5, characterized in that, The bottom of the riveting platform (18) is provided with a second slide (29) corresponding to the Y guide rail (17), and the second slide (29) is slidably installed on the Y guide rail (17).

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